Reusable tortuous path filters for sterilization containers

A sterilization container for sterilizing medical instruments that includes a body defining an interior volume and a lid connected to the body and configured to seal the interior volume between the lid and the body. The lid includes an exterior filter structure including a first plurality of ridges and a first plurality of troughs formed between the first ridges. The container includes a filter assembly connected to the lid and including an interior filter structure including a second plurality of ridges and a second plurality of troughs formed between the second ridges. The first plurality of ridges of the exterior filter structure are interposed between the second plurality of ridges of the interior filter structure. The exterior and interior filter structures are configured to form longitudinal channels positioned between the lid and filter assembly to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

TECHNICAL FIELD

The present invention generally relates to sterilization containers for maintaining sterility of medical devices stored therein, and more specifically to filters forming a tortuous path that permit ingress and egress of sterilants into the container while preventing contaminants from entering the container.

BACKGROUND

Sterilization containers are generally used to maintain a sterility of medical devices stored therein prior to use in a medical procedure. Sterilization containers may include a filter or valve system that facilitates an ingress and egress of sterilants into the container to promote a sterilization of the devices included therein. The filter or valve system further inhibits microorganisms and airborne particulates from accessing the container to prevent a contamination of the medical devices enclosed therein.

Accordingly, a need exists for a sterilization container including a tortuous path filter that is including varying structural configurations that are configured and operable to permit a flow of air and sterilant therethrough and increase a flow resistance of contaminants to prevent contamination of the medical devices stored in the container.

DETAILED DESCRIPTION

Reference will now be made in detail to various embodiments of reusable sterilization containers including tortuous path filters for maintaining a sterility of an interior volume of the container, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts. Directional terms as used herein—for example upper, lower, inner, outer, top, bottom, side, distal, and proximal—are made only with reference to the figures as drawn and are not intended to imply absolute orientation.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting. As used in the specification and appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. Thus, for example, reference to “a” component includes aspects having two or more such components, unless the context clearly indicates otherwise.

As used herein, the terms “horizontal,” “vertical,” “distal,” “proximal,” “longitudinal” and “lateral” are relative terms only, are indicative of a general relative orientation only, and do not necessarily indicate perpendicularity. These terms also may be used for convenience to refer to orientations used in the figures, which orientations are used as a matter of convention only and are not intended as characteristic of the devices shown. The terms “interior” and “exterior” are in reference to an interior volume of the sterilization containers, with “interior” facing toward the interior volume and “exterior” facing away from the interior volume. The present invention and the embodiments thereof to be described herein may be used in any desired orientation. Moreover, horizontal and vertical walls need generally only be intersecting walls, and need not be perpendicular.

I. Sterilization Container with Rectangular Tortuous Path Filter

Referring now toFIGS.1-3, one embodiment of a sterilization container100is depicted including a rectangular tortuous path filter that is configured and operable to permit ingress and egress of airflow and sterilants therethrough while inhibiting admission of contaminants into the sterilization container100. Specifically referring toFIG.1, the sterilization container100includes a body102, a lid110, and a filter assembly130. The body102serves as a base of the sterilization container100and includes a bottom wall104and a plurality of sidewalls106extending from the bottom wall104, thereby defining an interior volume108therebetween. The plurality of sidewalls106of the body102extend from the bottom wall104to an open, top end107such that a longitudinal height of each of the plurality of sidewalls106extends between the open, top end107and the bottom wall104(i.e. in the +/−Z direction of the coordinate axes in the figures). In the embodiment, the bottom wall104and the plurality of sidewalls106are integrally formed with one another such that the body102is a unitary structure. However, it should be understood that in other embodiments the bottom wall104and/or one or more of the plurality of sidewalls106may be separate components secured to one another to form the body102of the sterilization container100.

In the present example, the bottom wall104of the body102is generally rectangular such that the interior volume108formed by the bottom wall104and the plurality of sidewalls106is rectangularly shaped. Accordingly, the interior volume108of the body102is sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like. It should be understood that in other embodiments the bottom wall104and the interior volume108formed within the body102may include various other shapes and/or sizes than those shown and described herein without departing from the scope of the present disclosure. In the embodiment, the body102is exposed at the open, top end107such that the plurality of sidewalls106extend distally from the bottom wall104and terminate at the open, top end107of the body102. Accordingly, the interior volume108of the body102is exposed and operable to receive the one or more devices therein.

Still referring toFIG.1, the lid110of the sterilization container100serves as a top of the sterilization container100and is sized and shaped in accordance with a size and shape of the body102, such that the lid110is generally rectangularly shaped. In particular, the lid110includes an exterior surface112and an interior surface114positioned opposite of the exterior surface112. The lid110further includes an engagement edge115extending about a perimeter of the interior surface114. The engagement edge115of the lid110is sized and shaped relative to a size and shape of the plurality of sidewalls106of the body102such that the lid110is configured to be received over the body102and the engagement edge115is configured to engage the plurality of sidewalls106at the open, top end107.

In this instance, the engagement edge115of the lid110abuts against and forms a seal with the open, top end107of the body102thereby enclosing the interior volume108between the interior surface114of the lid110and the bottom wall104of the body102. It should be understood that in some embodiments the engagement edge115extending along the interior surface114of the lid110may include a gasket, a seal, an elastic member, and/or various other features configured to form a secured and/or airtight coupling between the lid110and the body102. It should be understood that the engagement end115may comprise various other structural geometries than those shown and described herein without departing from a scope of the present disclosure, including, for example, channels, ribs, and/or the like. Additionally and/or alternatively, in other embodiments the open, top end107of the body102may include a gasket, seal, elastic member, and/or other feature configured to form a secured and/or airtight coupling with the lid110.

Still referring toFIG.1, the lid110of the sterilization container100further includes a recessed inlet116, an outlet opening118, and an exterior filter structure120disposed along the exterior surface112. In particular, the recessed inlet116is positioned adjacent to a terminal end of the exterior filter structure120and forms a depressed surface along the exterior surface112of the lid110. It should be understood that the depressed surface formed by the recessed inlet116is relative to a planar surface of the exterior surface112. The outlet opening118of the lid110is positioned adjacent to another terminal end of the exterior filter structure120opposite of the recessed inlet116. Accordingly, a length of the exterior filter structure120along the exterior surface112extends between the recessed inlet116and the outlet opening118such that the exterior filter structure120is disposed therebetween.

The outlet opening118forms an aperture extending between the exterior surface112and the interior surface114such that the outlet opening118extends through the lid110. The exterior filter structure120extends laterally across a predetermined width of the exterior surface112of the lid110(i.e. in the +/−Y direction of the coordinate axes in the figures), and further extends longitudinally across a predetermined length of the exterior surface112of the lid110(i.e. in the +/−X direction of the coordinate axes in the figures). In the embodiment, the exterior filter structure120is integral with the lid110such that the exterior filter structure120is a unitarily-formed with the exterior surface112. As described in greater detail herein, it should be understood that a relative position of the recessed inlet116, the outlet opening118, and/or the exterior filter structure120of the lid110may be located along various other surfaces and/or positions than those shown and described herein without departing from a scope of the present disclosure.

Still referring toFIG.1, the filter assembly130is sized and shaped to be at least partially received within the recessed inlet116of the lid110. The lid110further includes one or more latch elements111formed along the exterior surface112that are configured to securely fix the filter assembly130to the lid110. In the present example, the lid110includes a pair of latch elements111positioned on the exterior surface112, however, it should be understood that in other embodiments the lid110may include additional and/or fewer latch elements111thereon. For example, the pair of latch elements111may include a protrusion, a slot, and/or the like formed on the exterior surface112that are sized and shaped to engage corresponding latch elements of the filter assembly130. It should be understood that in other embodiments the latch elements111of the lid110may include various other sizes, shapes, and/or configurations than those shown and described herein. Further, in other embodiments the lid110and the filter assembly130may form a unitary structure such that the latch elements111of the lid110and the corresponding latch elements of the filter assembly130may be omitted entirely.

The filter assembly130of the sterilization container100is sized and shaped in accordance with a size and shape of the recessed inlet116of the lid110such that the filter assembly130is generally rectangularly shaped. In particular, the filter assembly130includes an exterior surface132and an interior surface134positioned opposite of the exterior surface132. The filter assembly130of the sterilization container100further includes an inlet136disposed along the exterior surface132, an outlet opening138, and an interior filter structure140disposed along the interior surface134. In particular, the inlet136is positioned adjacent to a terminal end of the interior filter structure140and forms a depressed surface along the exterior surface132of the filter assembly130.

Still referring toFIG.1, it should be understood that the depressed surface formed by the inlet136is relative to a planar surface of the exterior surface132of the filter assembly130. More specifically, the inlet136includes an inlet opening135extending through the filter assembly130between the exterior surface132and the interior surface134. In the embodiment, a longitudinal length of the inlet opening135(i.e. in the +/−Y direction of the coordinate axes in the figures) extends parallel to a width of the filter assembly130and forms a rectangularly-shaped opening through the filter assembly130. The inlet136of the filter assembly130further includes one or more ramps137positioned adjacent to the inlet opening135. In the embodiment, a longitudinal length of the one or more ramps137(i.e. in the +/−Y direction of the coordinate axes in the figures) extend parallel to a width of the inlet opening135and forms a sloped-surface from the exterior surface132of the filter assembly130toward the inlet opening135. In the embodiment, the interior filter structure140is integral with the filter assembly130such that the interior filter structure140is a unitarily-formed with the interior surface134.

Referring now toFIG.2, the outlet opening138of the filter assembly130is positioned adjacent to another terminal end of the interior filter structure140opposite of the inlet136. Accordingly, a length of the interior filter structure140along the interior surface134extends between the inlet136and the outlet opening138such that the interior filter structure140is disposed therebetween. The interior filter structure140extends laterally across a predetermined width of the interior surface134of the filter assembly130(i.e. in the +/−Y direction of the coordinate axes in the figures), and further extends longitudinally across a predetermined length of the interior surface134of the filter assembly130(i.e. in the +/−X direction of the coordinate axes in the figures). The filter assembly130further includes one or more latch elements131formed along the interior surface134that are configured to securely fix the filter assembly130to the lid110.

In the present example, the filter assembly130includes a pair of latch elements131positioned on the interior surface134, however, it should be understood that in other embodiments the filter assembly130may include additional and/or fewer latch elements131thereon. The pair of latch elements131may include, for example, a protrusion, a slot and/or the like formed on the interior surface134that are sized and shaped to engage the latch elements111of the lid110. In particular, the latch element131of the filter assembly130, formed as a protrusion, is sized and shaped to be received within the latch element111of the lid110, formed as a slot. Further, the latch element131of the filter assembly130, formed as a slot, is sized and shaped to receive the latch element111of the lid110, formed as a protrusion. It should be understood that in other embodiments the latch elements131of the filter assembly130may include various other sizes, shapes, and/or configurations than those shown and described herein without departing from the scope of the present disclosure.

Still referring toFIG.2, and as briefly described above, the one or more ramps137of the filter assembly130are configured to form a sloped and/or curved surface between the exterior surface132and the inlet opening135. In the present example, the filter assembly130of the sterilization container100includes a pair of ramps137disposed about opposing sides of the inlet opening135, however, it should be understood that in other embodiments the filter assembly130may include additional and/or fewer ramps137than those shown and described herein. The pair of ramps137extends parallel to a lateral direction of the inlet opening135(i.e. in the +/−Y direction of the coordinate axes in the figures) and is configured to direct airflow and/or other materials, substances, and/or the like toward the inlet opening135of the filter assembly130. It should be understood that in other embodiments the inlet opening135and/or the one or more ramps137of the inlet136may have various other sizes and/or shapes than those shown and described herein.

The exterior filter structure120of the lid110includes a plurality of ridges122and a plurality of troughs124formed therein forming an undulating pattern of ridges122and troughs124. The plurality of ridges122and the plurality of troughs124may be formed as a single-piece, monolithic part of the lid110. For example, the plurality of ridges122and the plurality of troughs124may be molded along the rest of the lid110. Each trough124of the plurality of troughs124is formed and positioned between a pair of adjacent ridges122of the plurality of ridges122, such that a size and shape of each of the troughs124corresponds to a relative distance between each of a pair of adjacent ridges122. Further, a size and shape of each of the troughs124of the plurality of troughs124corresponds to a relative height of each of a pair of adjacent ridges122forming the trough124.

In some embodiments, a distance between adjacent ridges122of the exterior filter structure120may vary relative to one another along the lid110thereby forming an irregular pattern, while in other embodiments a distance between adjacent ridges122of the exterior filter structure120may be substantially similar to one another thereby forming a regularly continuous pattern. As briefly described above, the exterior filter structure120is integral with the lid110such that the exterior filter structure120is a unitarily-formed with the exterior surface112. Accordingly, the plurality of ridges122and the plurality of troughs124of the exterior filter structure120are integrally-formed with the exterior surface112such that the ridges122and the troughs124of the exterior filter structure120are unitary with the lid110.

Still referring toFIG.2, the interior filter structure140of the filter assembly130includes a plurality of ridges142and a plurality of troughs144formed therein forming an undulating pattern of ridges142and troughs144. The plurality of ridges142and the plurality of troughs144may be formed as a single-piece, monolithic part of the filter assembly130. For example, the plurality of ridges142and the plurality of troughs144may be molded along the rest of the filter assembly130. Each trough144of the plurality of troughs144is formed and positioned between a pair of adjacent ridges142of the plurality of ridges142, such that a size and shape of the troughs144corresponds to a relative distance between each of the pair of adjacent ridges142. Further, a size and shape of each of the troughs144of the plurality of troughs144corresponds to a relative height of each of a pair of adjacent ridges142forming the trough144.

In some embodiments, a distance between adjacent ridges142of the interior filter structure140may vary relative to one another along the filter assembly130thereby forming an irregular pattern, while in other embodiments the distance between adjacent ridges142of the interior filter structure140may be substantially similar to one another thereby forming a regularly continuous pattern. As briefly described above, the interior filter structure140is integral with the filter assembly130such that the interior filter structure140is a unitarily-formed with the interior surface134. Accordingly, the plurality of ridges142and the plurality of troughs144of the interior filter structure140are integrally-formed with the interior surface134such that the ridges142and the troughs144of the interior filter structure140are unitary with the filter assembly130.

It should be understood that the plurality of ridges122,142of the filter structures120,140are sized, shaped and configured to form a tortuous filter path between the filter structures120,140, respectively. More specifically, the tortuous filter path formed by the plurality of ridges122,142of the filter structures120,140includes a plurality of structural impediments between the lid110and the filter assembly130in the form of physical obstructions, barriers, hurdles and/or the like. The structural impediments formed by the plurality of ridges122,142may vary based on a predetermined size and shape of the plurality of ridges122,142, such as, for example, a length, width, and position of each of the plurality of ridges122,142. Additionally, it should be understood that the plurality of troughs124,144formed between the plurality of ridges122,142of the filter structures120,140are sized, shaped and configured to form a rectangular tortuous filter path between the filter structures120,140, respectively.

More specifically, the tortuous filter path formed by the plurality of troughs124,144of the filter structures120,140includes a plurality of structural impediments between the lid110and the filter assembly130in the form of physical cavities, recesses, depressions and/or the like. The structural impediments formed by the plurality of troughs124,144may vary based on a predetermined size and shape of the troughs124,144such as, for example, a depth, width, and position of each of the plurality of troughs124,144. In the embodiment, the tortuous filter path formed by the plurality of troughs124,144of the filter structures120,140is a rectangular tortuous filter path including a plurality of longitudinal structural impediments between the lid110and the filter assembly130. For example, the plurality of longitudinal structural impediments forming the rectangular tortuous filter path between the filter structures120,140may include longitudinal and/or elongated cavities, recesses and/or depressions positioned in a parallel arrangement relative to one another.

Still referring toFIG.2, with the lid110secured to the body102and the filter assembly130positioned over the lid110, the interior filter structure140is disposed over the exterior filter structure120thereby forming the tortuous path filter therebetween. In other words, the exterior filter structure120is configured to mesh with the interior filter structure140in response to the lid110receiving the filter assembly130thereon. In particular, the plurality of ridges122of the exterior filter structure120extends into and are received within the plurality of troughs144of the interior filter structure140. Further, the plurality of ridges142of the interior filter structure140extend into and are received within the plurality of troughs124of the exterior filter structure120. In this instance, a rectangular tortuous filter path is formed therebetween including a series of longitudinal, elongated, and/or rectangular channels positioned between the lid110and the filter assembly130.

Additionally, the pair of latch elements111of the lid110engages the pair of latch elements131of the filter assembly130, thereby aligning a position of the recessed inlet116of the lid110with a position of the inlet136of the filter assembly130, and more particularly the inlet opening135. In this instance, the inlet opening135and the recessed inlet116collectively form an ingress point for the rectangular tortuous filter path formed by the coupling of the filter structures120,140. The outlet opening118of the lid110is further aligned with the outlet opening138of the filter assembly130such that the outlet openings118,138collectively form an egress point for the rectangular tortuous path filter formed by the joinder of the filter structures120,140. In the embodiment, a size and shape of the ingress point formed by the inlet opening135and the recessed inlet116is substantially similar to a size and shape of the egress point formed by the outlet openings118,138. Accordingly, the sterilization container100of the embodiment is configured to form a consistent inlet cross-sectional area and outlet cross-sectional area between the pair of filter structures120,140. It should be understood that in other embodiments the size and shape of the ingress point at the inlet opening135and the recessed inlet116may vary relative to the size and shape of the egress point at the outlet openings118,138without departing from a scope of the present disclosure.

Referring now toFIG.3, in this embodiment, the plurality of ridges122of the exterior filter structure120extend at varying heights relative to one another. In some embodiments, the plurality of ridges122may extend at alternating lengths and/or heights in a predetermined pattern while, in other embodiments, the relative heights of the plurality of ridges122may be arbitrary and/or random. It should be understood that in other embodiments the plurality of ridges122of the exterior filter structure120may extend at similar lengths relative to one another. In the present example, the plurality of ridges122of the exterior filter structure120extend at varying lengths in an alternating pattern relative to an adjacent ridge122of the exterior filter structure120. A length and/or thickness of the plurality of ridges122is determinative of a size and shape of the plurality of troughs124of the exterior filter structure120formed therebetween. However, it should be understood that the plurality of troughs124of the exterior filter structure120may extend at varying depths relative to one another in embodiments where the plurality of ridges122include similar heights and/or lengths along the exterior filter structure120. In some embodiments, the heights of the plurality of ridges122may be such that they extend into the plurality of troughs124of the lid110.

The plurality of ridges142of the interior filter structure140extend at similar heights and lengths relative to one another. In other embodiments, the plurality of ridges142may extend at varying heights and lengths in a predetermined pattern, and the relative heights and lengths of the plurality of ridges142may be arranged in an arbitrary (i.e. random) pattern. In the present example, the plurality of ridges142of the interior filter structure140extend at similar heights in a uniform pattern relative to an adjacent ridge142of the interior filter structure140. A length and/or thickness of the plurality of ridges142in the longitudinal direction (i.e. in the +/−X direction of the coordinate axes in the figures) is determinative of a size and shape of the plurality of troughs144of the interior filter structure140formed therebetween. However, it should be understood that the plurality of troughs144of the interior filter structure140may extend at varying depths (i.e. in the +/−Z direction of the coordinate axes in the figures) relative to one another in embodiments where the plurality of ridges142include similar heights and/or lengths along the interior filter structure140(i.e. in the +/−Z direction of the coordinate axes in the figures). In the illustrated embodiment, the plurality of troughs144have lengths (i.e. in the +/−X direction of the coordinate axes in the figures) such that the plurality of troughs144extend across multiple (e.g., two or more) ridges142of the plurality of ridges142. In some embodiments, the heights of the plurality of ridges142(i.e. in the +/−Z direction of the coordinate axes in the figures) may be such that they extend into the plurality of troughs144of the filter assembly130.

Still referring toFIG.3, the recessed inlet116of the lid110is sized in accordance with the inlet opening135of the filter assembly130. As briefly described above, the lid110is configured to align the recessed inlet116with the inlet opening135of the filter assembly130in response to the engagement of the latch elements111of the lid110with the corresponding latch elements131of the filter assembly130. Further, the outlet opening118of the lid110is positioned is sized in accordance with the outlet opening138of the filter assembly130. Accordingly, the lid110is further configured to align the outlet opening118of the lid110with the outlet opening138of the filter assembly130in response to the engagement of the latch elements111of the lid110with the corresponding latch elements131of the filter assembly130.

With the filter assembly130secured to the lid110and the body102enclosed therein, an ingress and egress into the interior volume108of the body102(seeFIG.1) is facilitated by the inlets116,136, the rectangular tortuous filter path formed between the filter structures120,140, and the outlet openings118,138. In other words, access to the interior volume108of the body102(seeFIG.1) is inhibited (i.e. limited) as the filter structures120,140form a series of longitudinal, elongated, and/or rectangular channels that are configured to form a rectangular tortuous filter path including a plurality of structural impediments. In particular, the plurality of troughs144of the interior filter structure140are sized, shaped and configured to receive the plurality of ridges122of the exterior filter structure120, and the plurality of troughs124of the exterior filter structure120are sized, shaped and configured to receive the plurality of ridges142of the interior filter structure140.

Still referring toFIG.3, with the filter assembly130of the sterilization container100coupled to the lid110and the filter structures120,140meshed with one another, the rectangular tortuous path filter formed therebetween is configured to facilitate an ingress and egress of certain materials therethrough and into the interior volume108(seeFIG.1) while preventing other materials from traversing therethrough. In particular, the rectangular tortuous path filter formed by the filter structures120,140is configured to allow an ingress and egress of sterilant from the inlet opening135and the recessed inlet116, and through the outlet openings118,138, and further configured to inhibit microorganisms and airborne particulate from traversing through the filter structures120,140and into the outlet openings118,138. In other words, the rectangular tortuous filter path formed by the filter structures120,140is configured to decrease flow resistance of air and sterilant while increasing flow resistance of contaminants into the interior volume108of the body102.

In other embodiments, the exterior filter structure120and/or the interior filter structure140may be preassembled with one another prior to coupling the filter assembly130to the lid110without departing from a scope of the present disclosure. In this instance, the filter assembly130includes the pair of filter structures120,140assembled to one another, with the plurality of ridges122and the plurality of troughs124meshed with the corresponding plurality of ridges142and the plurality of troughs144, respectively, prior to coupling the filter assembly130with the lid110. Accordingly, the filter assembly130is configured to be selectively coupled to the lid110, and more specifically the connected pair of filter structures120,140is configured to be assembled onto the lid110. In the embodiment, the exterior filter structure120is not integrally-formed with the lid110. In other words, the exterior filter structure120and the interior filter structure140are configured to engage the lid110, such that the pair of filter structures120,140is removably secured to at least one of the exterior surface112and/or the interior surface114.

It should be understood that in other embodiments one or more filter structures may be integrally formed and/or removably assembled onto the bottom wall104of the body102without departing from a scope of the present disclosure. In this instance, the sterilization container100may include the exterior filter structure120, the interior filter structure140, and an additional one or more filter structures along the bottom wall104of the body102. Accordingly, the pair of filter structures120,140may be configured to facilitate an ingress and egress into the interior volume108of the body102and the additional one or more filter structures along the bottom wall104of the body102may be further configured to facilitate an ingress and egress into the interior volume108. Alternatively, as described in greater detail herein, in some embodiments a filter structure may be positioned along the interior surface114of the lid110and/or an exterior surface132of the filter assembly130.

II. Alternative Sterilization Container with Rectangular Tortuous Path Filter

FIG.4schematically depicts an alternative embodiment of a sterilization container200that is substantially similar to the sterilization container100shown and described above. Except as otherwise described below, the sterilization container200may be configured and operable like the sterilization container100. For instance, the sterilization container200includes a body202formed by a bottom wall204and a plurality of sidewalls206thereby defining an interior volume therein. The sterilization container200includes a lid210that is secured to the body202and includes an exterior surface212and an interior surface opposite of the exterior surface212. The exterior surface212of the lid210includes one or more latch elements211, a recessed inlet216, and a pair of outlet openings218disposed thereon. As similarly described in greater detail above with respect to the lid110of the sterilization container100, the one or more latch elements211are sized, shaped and configured to securely couple the lid210to one or more other components of the sterilization container200, such as a filter assembly230. Additionally, the interior volume of the body202is generally sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like.

The exterior surface212of the lid210further includes a pair of filter structures220disposed about the recessed inlet216, wherein each of the filter structures220extends along the exterior surface212and is positioned between the recessed inlet216and at least one of the pair of outlet openings218. In particular, the recessed inlet216is positioned adjacent to terminal ends of the pair of filter structures220and forms a depressed surface along the exterior surface212of the lid210. It should be understood that the depressed surface formed by the recessed inlet216is relative to a planar surface of the exterior surface212. Each of the pair of outlet openings218of the lid210is positioned adjacent to a terminal end of at least one of the pair of filter structures220opposite of the recessed inlet216. It should be understood that the pair of filter structures220of the lid210include a plurality of ridges and a plurality of troughs as similarly described and shown above with respect to the exterior filter structure120of the lid110.

Still referring toFIG.4, the sterilization container200further includes a filter assembly230having an exterior surface232and an interior surface234positioned opposite of the exterior surface232. The exterior surface232of the filter assembly230includes an inlet236disposed thereon, and in particular the inlet236includes an inlet opening235and one or more ramps237disposed about the inlet opening235. In the embodiment, a longitudinal length of the inlet opening235of the inlet236extends parallel to a width of the filter assembly230(i.e. in the +/−X direction of the coordinate axes in the figures) and forms a rectangularly-shaped opening through the filter assembly230. In the present example, the inlet236of the filter assembly230includes a pair of ramps237positioned along opposing sides of the inlet opening235. The pair of ramps237of the filter assembly230is configured to form a curved surface between the exterior surface232and the inlet opening235.

It should be understood that in other embodiments the filter assembly230may include additional and/or fewer ramps237than those shown and described herein without departing from the scope of the present disclosure. The pair of ramps237extends parallel to a length of the inlet opening235(i.e. in the +/−X direction of the coordinate axes in the figures) and is configured to direct airflow and/or other materials, substances, and/or the like toward the inlet opening235. It should be understood that in other embodiments the inlet opening235and/or the one or more ramps237of the inlet236may have various other sizes and/or shapes than those shown and described herein.

Although not shown, it should be understood that the filter assembly230of the sterilization container200further includes a pair of filter structures, a pair of outlet openings, and one or more latch elements disposed on the interior surface234of the filter assembly230. Except as otherwise described below, it should be understood that the filter structures, outlet openings, and latch elements of the filter assembly230are substantially similar and configured like the interior filter structure140, the outlet opening138, and the latch element131of the filter assembly130shown and described above, respectively. In particular, the pair of outlet openings are positioned along the interior surface234at terminal ends of each of the pair of filter structures of the filter assembly230such that the outlet openings of the filter assembly230are aligned with the pair of outlet openings218of the lid210when the filter assembly230is received over and coupled to the lid210of the sterilization container200. It should be understood that the pair of filter structures of the filter assembly230include a plurality of ridges and a plurality of troughs as similarly described and shown above with respect to the interior filter structure140of the filter assembly130. The plurality of ridges and the plurality of troughs in each of the filter structures of the filter assembly230are configured to mesh with the plurality of ridges and the plurality of troughs of the pair of filter structures220of the lid210.

Still referring toFIG.4, securing the interior surface234of the filter assembly230onto the exterior surface212of the lid210via the engagement of the corresponding latch elements211of the lid210and the latch element of the filter assembly230, respectively, provides a coupling of the filter structures220of the lid210with the filter structures of the filter assembly230. In this instance, a pair of tortuous path filters is formed between the lid210and the filter assembly230, and in particular a pair of rectangular tortuous path filters due a rectangularly-shaped profile of the filter structures220of the lid210and a rectangularly-shaped profile of the filter structures of the filter assembly230. The sterilization container200includes a single ingress point into the tortuous path filters formed by the filter structures220of the lid210and the filter structures of the filter assembly230at the inlet opening235and the recessed inlet216, respectively. Additionally, the sterilization container200includes multiple egress points from the tortuous path filters via the pair of outlet openings218of the lid210and the pair of outlet openings of the filter assembly230aligned therewith, respectively.

III. Alternative Sterilization Container with Rectangular Tortuous Path Filter

Referring now toFIG.5, an alternative embodiment of a sterilization container300that is substantially similar to the sterilization container100,200shown and described above is schematically depicted. Except as otherwise described below, the sterilization container300may be configured and operable like the sterilization containers100,200. For instance, the sterilization container300includes a body302formed by a bottom wall304and a plurality of sidewalls306thereby defining an interior volume therein. The sterilization container300includes a lid310that is secured to the body302and includes an exterior surface312and an interior surface opposite of the exterior surface312. The exterior surface312of the lid310includes one or more latch elements311, a pair of recessed inlets316, and an outlet opening318disposed thereon. As similarly described in greater detail above with respect to the lid110of the sterilization container100, the one or more latch elements311are sized, shaped and configured to securely couple the lid310to one or more other components of the sterilization container300, such as a filter assembly330. Additionally, the interior volume of the body302is generally sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like.

The exterior surface312of the lid310further includes a pair of filter structures320disposed about the outlet opening318, wherein each of the filter structures320extends along the exterior surface312and is positioned between the outlet opening318and at least one of the recessed inlets316. In particular, the pair of recessed inlets316is positioned adjacent to terminal ends of the pair of filter structures320and form a depressed surface along the exterior surface312of the lid310. It should be understood that the depressed surfaces formed by each of the pair of recessed inlets316are relative to a planar surface of the exterior surface312. The outlet opening318of the lid310is positioned adjacent to a terminal end of both of the pair of filter structures320opposite of the pair of recessed inlets316. It should be understood that the pair of filter structures320of the lid310include a plurality of ridges and a plurality of troughs as similarly described and shown above with respect to the exterior filter structure120of the lid110.

Still referring toFIG.5, the sterilization container300further includes a filter assembly330having an exterior surface332and an interior surface334positioned opposite of the exterior surface332. The exterior surface332of the filter assembly330includes a pair of inlets336disposed thereon corresponding to the pair of recessed inlets316of the lid310. In particular, the pair of inlets336of the filter assembly330each includes an inlet opening335and one or more ramps337disposed about the inlet opening335. In the embodiment, a longitudinal length of each of the inlet openings335of the pair of inlets336extends parallel to a width of the filter assembly330(i.e. in the +/−X direction of the coordinate axes in the figures) and forms a rectangularly-shaped opening through the filter assembly330. In the present example, each of the pair of inlets336of the filter assembly330includes a pair of ramps337positioned along opposing sides of the inlet openings335, respectively. Each of the pair of ramps337of the pair of inlets336are configured to form a curved surface between the exterior surface332and the corresponding inlet opening335.

It should be understood that in other embodiments the filter assembly330may include additional and/or fewer ramps337than those shown and described herein without departing from the scope of the present disclosure. The pair of ramps337extends parallel to a length of the inlet openings335and is configured to direct airflow and/or other materials, substances, and/or the like toward the inlet openings335. It should be understood that in other embodiments the inlet openings335and/or the one or more ramps337of the inlets336may have various other sizes and/or shapes than those shown and described herein.

Although not shown, it should be understood that the filter assembly330of the sterilization container300further includes a pair of filter structures, a pair of outlet openings, and one or more latch elements disposed on the interior surface334of the filter assembly330. Except as otherwise described below, it should be understood that the filter structures, outlet openings, and latch elements of the filter assembly330are substantially similar and configured like the interior filter structure140, the outlet opening138, and the latch element131of the filter assembly130shown and described above, respectively. In particular, the pair of outlet openings are positioned along the interior surface334at terminal ends of each of the pair of filter structures of the filter assembly330such that the outlet openings of the filter assembly330are aligned with the outlet opening318of the lid310when the filter assembly330is received over and coupled to the lid310of the sterilization container300. It should be understood that the pair of filter structures of the filter assembly330include a plurality of ridges and a plurality of troughs as similarly described and shown above with respect to the interior filter structure140of the filter assembly130. The plurality of ridges and the plurality of troughs in each of the filter structures of the filter assembly330are configured to mesh with the plurality of ridges and the plurality of troughs of the pair of filter structures320of the lid310.

Still referring toFIG.5, securing the interior surface334of the filter assembly330onto the exterior surface312of the lid310via the engagement of the corresponding latch elements311of the lid310and the latch element of the filter assembly330, respectively, provides a coupling of the filter structures320of the lid310with the filter structures of the filter assembly330. In this instance, a pair of tortuous path filters is formed between the lid310and the filter assembly330, and in particular a pair of rectangular tortuous path filters due a rectangularly-shaped profile of the filter structures320of the lid310and a rectangularly-shaped profile of the filter structures of the filter assembly330. The sterilization container300includes multiple ingress points into the tortuous path filters formed by the filter structures320of the lid310and the filter structures of the filter assembly330at the inlet openings335and recessed inlets316, respectively. Additionally, the sterilization container300includes a single egress point from the tortuous path filters via the outlet opening318of the lid310and the pair of outlet openings of the filter assembly330aligned therewith, respectively.

IV. Modular Lid with Rectangular Tortuous Path Filter

Referring now toFIGS.6A-6D, an alternative embodiment of a modular filter lid assembly430that is substantially similar to the filter assembly130,230,330shown and described above is schematically depicted. Except as otherwise described below, the modular filter lid assembly430may be configured and operable like the filter assembly130,230,330. Accordingly, it should be understood that the modular filter lid assembly430of the present example may be readily incorporated into the sterilization containers100,200,300described above, and more particularly the modular filter lid assembly430may be readily utilized with and/or in lieu of the lids110,210,310shown and described above. In many respects, the modular filter lid assembly430functions substantially similar to the filter assembly130,230,330described in detail above such that a version of the sterilization containers100,200,300equipped with the modular filter lid assembly430of the present example may be configured and operable similar to the sterilization containers100,200,300equipped with the filter assembly130,230,330except for the differences discussed herein.

Referring specifically toFIG.6A, the modular filter lid assembly430includes a modular body431defined by an exterior surface432, an interior surface434, a pair of sidewalls435and a pair of opposing ends436. The modular body431includes a lateral width extending between the pair of sidewalls435(i.e. in the +/−Y direction of the coordinate axes in the figures) and a longitudinal length extending between the pair of opposing ends436(i.e. in the +/−X direction of the coordinate axes in the figures). The modular body431is formed of a plurality of movable body segments433positioned between the pair of opposing ends436. Each of the plurality of movable body segments433of the modular body431is configured to extend outwardly relative to one another to selectively form a plurality of configurations, shapes, profiles, orientations, and/or the like of the modular filter lid assembly430. In other words, the plurality of movable body segments433are modular such that each of the movable body segments433are selectively expandable and/or collapsible relative to one another in the +/−X direction ofFIG.6A.

As described in greater detail herein, a lateral width of the modular body431extending between the pair of sidewalls435(i.e. in the +/−Y direction of the coordinate axes in the figures) is fixed and a longitudinal length of the modular body431extending between the pair of opposing ends436is selectively adjustable (i.e. in the +/−X direction of the coordinate axes in the figures). At least one of the pair of opposing ends436of the modular body431includes an inlet437formed therein. The inlet437extends into the modular body431of the modular filter lid assembly430and is configured to facilitate access to a tortuous path filter of the modular filter lid assembly430disposed within the modular body431. The modular body431of the modular filter lid assembly430is depicted in a first, compacted state with the pair of opposing ends436separated from one another by a first distance. In this instance, the tortuous path filter formed within the modular body431has a first configuration based on the first, compacted state of the modular body431.

Referring now toFIG.6B, the modular body431of the modular filter lid assembly430is depicted in a second, expanded state with the pair of opposing ends436separated from one another by a second distance that is larger than the first distance shown and described above. In this instance, the tortuous path filter formed within the modular body431has a second configuration based on the second, expanded state of the modular body431. With the modular body431formed of a plurality of movable body segments433, the modular body431of the modular filter lid assembly430is configured to selectively transition between the first, compacted state and the second, expanded state in response to an outward expansion of each of the plurality of movable body segments433. For example, the pair of opposing ends436of the modular body431may be physically manipulated to manually adjust (i.e. increase and/or decrease) a separation distance positioned therebetween, thereby modifying a longitudinal length of the modular body431(i.e. in the +/−X direction of the coordinate axes in the figures). As described in greater detail herein, each of the plurality movable body segments433of the modular body431are configured to movably expand outwardly and/or collapse inwardly relative one another in response to the physical manipulation of the pair of opposing ends436of the modular body431in the +/−X direction ofFIG.6A.

By way of illustrative example, in some embodiments the plurality of movable body segments433of the modular body431are structurally configured to stack atop one another when the modular body431is in the first, compacted state, and alternatively unstack relative to one another when the modular body431transitions to the second, expanded state. Alternatively, in other embodiments the plurality of movable body segments433are configured to be slidably received within an adjacent movable body segment433when in the first, compacted state, and alternatively translate externally from an adjacent movable body segment433when the modular body431transitions to the second, expanded state. In further embodiments, the plurality of movable body segments433of the modular body431may be individually foldable over itself and/or an adjacent movable body segment433when in the first, compacted state, and further unfoldable when the modular body431transitions to the second, expanded state. By way of further example, in embodiments the plurality of movable body segments433may formed of flexibly depressible materials, such as, for example, polystyrene. In this instance, each of the plurality of movable body segments433may be selectively depressed when in the first, compacted state, and alternatively expanded outwardly when the modular body431transitions to the second, expanded state.

Accordingly, the plurality of movable body segments433are configured to be selectively adjusted to expand and/or collapse the modular body431to increase and/or decrease a longitudinal length defined between the pair of opposing ends436(i.e. in the +/−X direction of the coordinate axes in the figures). It should be understood that the plurality of movable body segments433of the modular body431may be configured to transition from the first, compacted state to the second, expanded state in various suitable manners without departing from the scope of the present disclosure. It should further be understood that with a tortuous path filter disposed within the modular body431, the tortuous path filter is configured to selectively expand and/or collapse simultaneously with a corresponding expansion and/or collapse of the plurality of movable body segments433. In other embodiments, the modular body431of the modular filter lid assembly430may be configured and operable to selectively adjust the plurality of movable body segments433to expand and/or collapse a lateral width of the modular filter lid assembly430defined between the pair of opposing sidewalls435in the +/−Y direction ofFIG.6B, a thickness defined between the exterior surface432and the interior surface434, and/or the like.

Referring now toFIGS.6C-6D, the modular filter lid assembly430includes a pair of filter structures120,140disposed within the modular body431, and in particular between the exterior surface432and the interior surface434. More specifically, the modular filter lid assembly430includes the exterior filter structure120disposed within the modular body431and positioned along a lower interior surface438of the modular filter lid assembly430. Further, the modular filter lid assembly430includes the interior filter structure140disposed within the modular body431and positioned along the interior surface134of the modular filter lid assembly430. It should be understood that the filter structures120,140are substantially similar to the filter structures120,140shown and described above such that each of the filter structures120,140of the modular filter lid assembly430includes a plurality of ridges122,142and a plurality of troughs124,144, respectively, as similarly described and shown above with respect to the filter structures120,140of the filter assembly130. In this instance, the pair of filter structures120,140, of the modular filter lid assembly430form a tortuous path filter within the modular body431that is configured to mesh with one another between the exterior surface432and the interior surface434of the modular filter lid assembly430.

Referring specifically toFIG.6C, the modular filter lid assembly430is schematically depicted in the first, compacted state such that the pair of filter structures120,140are positioned in a first configuration with the pair of opposing ends436separated from one another by a first distance. In this instance, a longitudinal length of the tortuous path filter formed by the filter structures120,140is defined between the inlet437and the outlet opening118with the plurality of ridges122,142and the plurality of troughs124,144positioned therebetween. As will be described in greater detail herein, the tortuous path filter formed by the filter structures120,140is configured to include additional ridges122,142and troughs124,144extending between the inlet437and the outlet opening118when in the second configuration relative to the first configuration shown and described herein.

Referring now toFIG.6D, the modular filter lid assembly430is schematically depicted in the second, expanded state such that the pair of filter structures120,140are positioned in a second configuration with the pair of opposing ends436separated from one another by a second distance that is greater than the first distance. In this instance, a longitudinal length of the tortuous path filter formed by the filter structures120,140is defined between the inlet437and the outlet opening118in the +/−X axis ofFIG.6Dwith the plurality of ridges122,142and the plurality of troughs124,144positioned therebetween. The tortuous path filter includes additional ridges122,142and troughs124,144extending between the inlet437and the outlet opening118in the second configuration relative to the first configuration in response to actuation of the plurality of movable body segments433, and a separation of the pair of opposing ends436from one another (i.e. in the +/−X direction of the coordinate axes in the figures). It should be understood that with the inlet437positioned along at least one of the pair of opposing ends436, a size and/or shape of the inlet437remains fixed in the second, expanded state of the modular body431relative to the first, compacted state.

In some embodiments, the plurality of ridges122,142of the filter structures120,140are structurally configured to be slidably received within one another when in the first configuration. In other embodiments, the plurality of ridges122,142and the plurality of troughs124,144of the filter structures120,140may be individually foldable when in the first configuration. Still in other embodiments the plurality of ridges122,142may formed of flexibly depressible materials such that the plurality of ridges122,142are selectively depressed when in the first configuration. In either instance, the filter structures120,140are configured to be modularly adjustable to increase and/or decrease a quantity of the plurality of ridges122,142and the plurality of troughs124,144included therein in response to an expansion and/or collapse of the modular body431as a longitudinal length defined between the pair of opposing ends436is adjusted in the +/−X direction ofFIGS.6C-6D. In other embodiments, the modular filter lid assembly430may be configured to selectively expand and/or collapse in various other configurations, shapes, sizes, orientations, and/or the like without departing from the scope of the present disclosure. For example, a lateral width of the modular body431defined between the pair of sidewalls435may be selectively adjustable (i.e. in the +/−Y direction of the coordinate axes in the figures) in addition to and/or in lieu of a longitudinal length of the modular body431defined between the pair of opposing ends436.

V. Alternative Modular Lid with Rectangular Tortuous Path Filter

Referring now toFIGS.7A-7B, an alternative embodiment of a modular filter lid assembly530that is substantially similar to the modular filter lid assembly430shown and described above is schematically depicted. Except as otherwise described below, the modular filter lid assembly530may be configured and operable like the modular filter lid assembly430such that like reference numerals are used to identify like components. It should be understood that the modular filter lid assembly530of the present example may be readily incorporated into the sterilization containers100,200,300described above, and more particularly the modular filter lid assembly530may be readily utilized with the lids110,210,310shown and described above. In many respects, the modular filter lid assembly530functions substantially similar to the modular filter lid assembly430except as otherwise described herein.

Referring specifically toFIG.7A, the modular body431of the modular filter lid assembly530is defined by the exterior surface432, the interior surface434, the pair of sidewalls435and the pair of opposing ends436. The modular body431includes a lateral width extending between the pair of sidewalls435(i.e. in the +/−Y direction of the coordinate axes in the figures) and a longitudinal length extending between the pair of opposing ends436(i.e. in the +/−X direction of the coordinate axes in the figures). Similar to the modular filter lid assembly430shown and described above, the modular body431of the modular filter lid assembly530is formed of the plurality of movable body segments433positioned between the pair of opposing ends436. Each of the plurality of movable body segments433of the modular body431is configured to extend outwardly relative to one another to selectively form a plurality of configurations, shapes, profiles, orientations and/or the like of the modular filter lid assembly530. In other words, the plurality of movable body segments433are modular such that each of the movable body segments433are selectively expandable and/or collapsible relative to one another.

At least one of the pair of sidewalls435of the modular body431includes an inlet537formed therein. The inlet537extends into the modular body431of the modular filter lid assembly530and is configured to facilitate access to a tortuous path filter of the modular filter lid assembly530disposed within the modular body431. The modular body431of the modular filter lid assembly530is depicted in a first, compacted state with the pair of opposing ends436separated from one another by a first distance. In this instance, the tortuous path filter formed within the modular body431has a first configuration based on the first, compacted state of the modular body431. It should be understood that the modular filter lid assembly530may include a tortuous path filter within the modular body431similar to the modular filter lid assembly430shown and described above (seeFIGS.6C-6D).

Referring now toFIG.7B, the modular body431of the modular filter lid assembly530is depicted in a second, expanded state with the pair of opposing ends436separated from one another by a second distance that is larger than the first distance shown and described above. In this instance, the tortuous path filter formed within the modular body431has a second configuration based on the second, expanded state of the modular body431. With the modular body431formed of a plurality of movable body segments433, the modular body431of the modular filter lid assembly530is configured to selectively transition between the first, compacted state and the second, expanded state in response to an outward expansion of each of the plurality of movable body segments433.

For example, the pair of opposing ends436of the modular body431may be physically manipulated to manually adjust (i.e. increase and/or decrease) a separation distance therebetween, thereby modifying a longitudinal length of the modular body431in the +/−X direction ofFIGS.7A-7B. It should be understood that with the inlet537positioned along at least one of the pair of sidewalls ends535, a size and/or shape of the inlet537is modularly adjustable simultaneously with the modular body431of the modular filter lid assembly530. In particular, the inlet537is configured to expand along the sidewall435as the modular body431transitions from the first, compacted state to the second, expanded state.

It should be understood that the plurality of movable body segments433of the modular body431may be configured to transition from the first, compacted state to the second, expanded state in various suitable manners as described above with respect to modular filter lid assembly430without departing from the scope of the present disclosure. It should further be understood that the modular filter lid assembly530includes a pair of modular filter structures disposed within the modular body431between the exterior surface432and the interior surface434forming a tortuous path filter therein. The tortuous path filter of the modular filter lid assembly530is configured to selectively expand and/or collapse simultaneously with a corresponding expansion and/or collapse of the plurality of movable body segments433of the modular body431. In other embodiments, the modular filter lid assembly530may be configured to selectively expand and/or collapse in various other configurations, shapes, sizes, orientations, and/or the like without departing from the scope of the present disclosure. For example, a lateral width of the modular body431defined between the pair of sidewalls435may be selectively adjustable (i.e. in the +/−Y direction of the coordinate axes in the figures) in addition to and/or in lieu of a longitudinal length of the modular body431defined between the pair of opposing ends436(i.e. in the +/−X direction of the coordinate axes in the figures).

VI. Alternative Sterilization Container with Vertical Tortuous Path Filter

FIGS.8-9schematically depict an alternative embodiment of a sterilization container600that is substantially similar to the sterilization containers100,200,300shown and described above. Except as otherwise described below, the sterilization container600may be configured and operable like the sterilization containers100,200,300. For instance, the sterilization container600includes a body602formed by a bottom wall604and a plurality of sidewalls606thereby defining an interior volume608therein. The sterilization container600includes a lid610that is secured to the body602and includes an exterior surface612and an interior surface614opposite of the exterior surface612. The lid210may include a plurality of sidewalls621that extend outwardly from the interior surface614that are sized and shaped to be received within the interior volume608of the body602. It should be understood that the lid610includes a corresponding quantity of sidewalls621relative to the plurality of sidewalls606of the body602. Additionally, the interior volume608of the body602is generally sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like.

Referring specifically toFIG.8, in some embodiments each of the sidewalls606of the body602includes a filter structure601disposed thereon and positioned along an interior surface603of the sidewall606that is positioned inwardly into the interior volume608. Each of the filter structures601of the plurality of sidewalls606includes a plurality of ridges607extending laterally outward along the interior surface603and a plurality of troughs605formed along the interior surface603and positioned in between a pair of adjacent ridges607. It should be understood that the plurality of ridges607and the plurality of troughs605may be configured and operable similar to the plurality of ridges122,142and the plurality of troughs124,144shown and described in greater detail above.

In embodiments, each of the sidewalls621of the lid610includes a filter structure620disposed thereon positioned along an exterior surface623of the sidewall621that is positioned outwardly. Each of the filter structures620of the plurality of sidewalls621includes a plurality of ridges622extending laterally outward along the exterior surface623and a plurality of troughs624formed along the exterior surface623and positioned in between a pair of adjacent ridges622. It should be understood that the plurality of ridges622and the plurality of troughs624may be configured and operable similar to the plurality of ridges122,142and the plurality of troughs124,144shown and described in greater detail above. It should be further understood that in some embodiments a subset of the plurality of sidewalls621of the lid610includes the filter structure620disposed thereon. In this instance, a corresponding subset of the plurality of sidewalls606of the body602include the filter structure601disposed thereon.

Still referring toFIG.8, the body602of the sterilization container600further includes one or more standoffs609extending outwardly from the bottom wall604and into the interior volume608at a predetermined length. As described in greater detail herein, the one or more standoffs609of the body602are sized, shaped, and configured to form a gap proximate to the bottom wall604to serve as an outlet opening for a tortuous path filter formed in the sterilization container600in response to the body602coupling the lid610. In some embodiments, the body602includes a single standoff609extending continuously about a perimeter of the bottom wall604adjacent to each of the plurality of sidewalls606. In other embodiments, the body602includes a plurality of standoffs609extending about the bottom wall604adjacent to each of the plurality of sidewalls606. Various other arrangements and/or quantities of the one or more standoffs609may be included in the sterilization container600without departing from the scope of the present disclosure.

It should be understood that the one or more standoffs609of the body602are positioned adjacent to each of the sidewalls606by a predetermined distance. As described in greater detail herein, the one or more standoffs609are positioned along the bottom wall604of the body602in alignment with a location of the plurality of sidewalls621of the lid610in response to the lid610being received over the body602. The lid610of the sterilization container600further includes one or more standoffs626extending outwardly from the each of the plurality of sidewalls621at a predetermined length. As will be described in greater detail herein, in some embodiments the lid610includes a single standoff626extending continuously about an end of the plurality of sidewalls621opposite of the interior surface614.

Still referring toFIG.8, in other embodiments the lid610includes a plurality of standoffs626extending about an end of each of the plurality of sidewalls621. Various other arrangements and/or quantities of the one or more standoffs626may be included in the sterilization container600without departing from the scope of the present disclosure. As described in greater detail herein, the one or more standoffs626are positioned along an end of the plurality of sidewalls621in alignment with a location of the one or more standoffs609along the bottom wall604in response to the lid610being received over the body602. Although not shown, it should be understood that the body602and/or the lid610of the sterilization container600may further include one or more latch elements for securely fastening the body602and the lid610to one another.

With the lid610disposed over the body602of the sterilization container600, the plurality of sidewalls621are received within the interior volume608and positioned adjacent to the plurality of sidewalls606. In particular, the exterior surface623of the plurality of sidewalls621are positioned proximate to and extending toward the interior surface603of the plurality of sidewalls606when the lid610is received in the body602. With the filter structure620of the plurality of sidewalls621positioned along the exterior surface623and the filter structure601of the plurality of sidewalls606positioned along the interior surface603, a tortuous path filter is formed between the plurality of sidewalls606,621. More specifically, the plurality of ridges607and the plurality of troughs605of the filter structure601are configured to mesh with the plurality of ridges622and the plurality of troughs624thereby forming a tortuous path filter between the lid610and the body602.

Still referring toFIG.8, a plurality of inlets616and a plurality of outlet openings618are formed between the lid610and the body602in response to the lid610being positioned over the body602and the plurality of sidewalls621being received within the interior volume608. In particular, the plurality of inlets616are formed between the interior surface614, the plurality of sidewalls621, and the plurality of sidewalls606. The plurality of outlet openings618are formed between the standoff609of the bottom wall604, the standoff626of the plurality of sidewalls621, and the plurality of sidewalls606. It should be understood that the lid610and/or the body602is sized, shaped and configured to form the inlet616and the outlet opening618when securely coupled to one another. In other words, the inlet616and the outlet opening618comprise a gap formed between the lid610and the body602in response to the lid610and the body602securely engaging one another.

It should be understood that the plurality of inlets616and/or the plurality of outlet openings618may include various sizes, shapes, and/or positions than those shown and described herein without departing from the scope of the present disclosure. Additionally, it should be understood the plurality of inlets616and the plurality of outlet openings618are located proximate to the plurality of sidewalls606,621that include the filter structures601,620disposed thereon. Accordingly, in embodiments with only a subset of the plurality of sidewalls606,621including the filter structures601,620, respectively, a gap formed by the inlet616and the outlet opening618is omitted between the lid610and the body602along the plurality of sidewalls606,621not including the filter structures601,620. In some embodiments, the filter structures601,620are further configured to form a gasket between the lid610and the body602.

Referring now toFIG.9A, the sidewall621of the lid610is schematically depicted including the one or more standoffs626described and shown above. In the embodiment, the sidewall621of the lid610includes a plurality of standoffs626disposed along a bottom end of the sidewall621. In particular, each of the plurality of standoff626of the sidewall621is separated from one another by a gap627formed therebetween thereby defining a plurality of recessed standoffs628at the gaps627. The plurality of recessed standoffs628are positioned distally from the standoff609of the body602along the bottom wall604relative to the plurality of standoffs626. In this instance, the outlet opening618formed between the standoff609of the body602and the standoff626of the sidewall621is increased along the plurality of recessed standoffs628with the gaps627formed therein. It should be understood that in other embodiments the standoff626of the sidewall621may extend uniformly along a bottom end of the sidewall621such that the plurality of recessed standoffs628and the plurality of gaps627are omitted entirely from the sterilization container600.

For example, referring now toFIG.9B, an alternative sterilization container600′ is schematically depicted that is substantially similar to the sterilization container600shown and described above except for the differences explicitly noted herein. Therefore, identical or substantially similar components are marked with the same reference numerals without further discussion. It should be understood that any components and operabilities of the sterilization container600′ that are not described explicitly below may be the same as the components and operabilities of the sterilization container600described above. In particular, the lid610of the sterilization container600′ includes a plurality of sidewalls621′ including a standoff626′ extending along a bottom end of the sidewall621′. In this instance, the standoff626′ forms a uniform, planar end of the sidewall621′ of the lid610.

The body602of the sterilization container600′ includes one or more standoffs609′ extending outwardly from the bottom wall604and toward the plurality of sidewalls621′ of the lid610. In particular, the bottom wall604of the body602includes a plurality of standoffs609′ such that each of the plurality of standoff609′ along the bottom wall604is separated from one another by a gap618′ formed therebetween. In this instance, the outlet opening618formed between the plurality of standoffs609′ of the body602and the standoff626′ of the plurality of sidewalls621′ is increased along the plurality of gaps618′ formed therebetween. It should be understood that in other embodiments both the standoff626,626′ of the plurality of sidewalls621,621′ and the standoff609,609′ of the body602may include various other shapes, sizes, and/or configurations than those shown and described herein to form varying outlet openings118between the lid610and the body602of the sterilization container600,600′ without departing from the scope of the present disclosure.

VII. Alternative Sterilization Container with Radial Tortuous Path Filter

FIGS.10-12schematically depict an alternative embodiment of a sterilization container700that is substantially similar to the sterilization containers100,200,300shown and described above. Except as otherwise described below, the sterilization container700may be configured and operable like the sterilization containers100,200,300. Referring specifically toFIG.10, the sterilization container700includes a body702formed by a bottom wall204and a plurality of sidewalls706defining an interior volume therein. The sterilization container700includes a lid710that is secured to the body702and includes an exterior surface712and an interior surface opposite of the exterior surface712. The exterior surface712of the lid710includes a recessed inlet716, and a plurality of outlet openings718disposed thereon. It should be understood that in some embodiments the lid110may include one or more latch elements similar to the latch elements111of the lid110described and shown above that are sized, shaped and configured to securely couple the lid710to one or more other components of the sterilization container700, such as a filter assembly730. Additionally, the interior volume of the body702is generally sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like.

The exterior surface712of the lid710further includes a radial filter structure720disposed about the recessed inlet716, wherein the filter structure720extends along the exterior surface712and is positioned between the recessed inlet716and the plurality of outlet openings718. In the embodiment, the filter structure720includes a circular shape, profile, and/or configuration. The recessed inlet716forms a depressed surface along the exterior surface712of the lid710and is disposed within the filter structure720and the plurality of outlet openings718. It should be understood that the depressed surface formed by the recessed inlet716is relative to a planar surface of the exterior surface712. The plurality of outlet openings718of the lid710is positioned in an annular array about the filter structure720and the recessed inlet716, and more specifically the plurality of outlet openings718are positioned adjacent to a terminal boundary of the filter structure720opposite of the recessed inlet716. In other embodiments, the lid710may include filter structures with various other suitable shapes, sizes, and/or configurations, such as, for example, a rectangular filter structure.

Still referring toFIG.10, the sterilization container700further includes a filter assembly730having an exterior surface732and an interior surface734positioned opposite of the exterior surface732. The exterior surface732of the filter assembly730includes a radial inlet736disposed thereon, and in particular the radial inlet736includes a radial inlet opening735and a radial ramp737disposed about the radial inlet opening735. In the embodiment, a diameter of the radial inlet opening735is sized and shaped in accordance with a size and shape of the recessed inlet716, and a size and shape of the radial inlet736is sized and shaped in accordance with a size and shape of the radial filter structure720. Accordingly, a radially-shaped opening is formed through the filter assembly730at the radial inlet736. The radial ramp737of the filter assembly730is configured to form a curved surface between the exterior surface732and the radial inlet opening735.

It should be understood that in other embodiments the filter assembly730may include a larger and/or smaller radial inlet736than those shown and described herein without departing from the scope of the present disclosure. The radial ramp737is configured to direct airflow and/or other materials, substances, and/or the like toward the radial inlet opening735. It should be understood that in other embodiments the radial inlet opening735and/or the radial ramp737of the radial inlet736may have various other sizes and/or shapes than those shown and described herein. Although not shown, it should be understood that in some embodiments the filter assembly730of the sterilization container700may further include one or more latch elements disposed on the interior surface734of the filter assembly730for securely coupling the filter assembly730to the lid710. Except as otherwise described below, it should be understood that the latch elements of the filter assembly730are substantially similar and configured like the latch element131of the filter assembly730shown and described above.

Referring now toFIG.11, the sterilization container700is schematically depicted with the filter assembly730received on and coupled to the lid710such that the radial inlet736is disposed over the recessed inlet716. In the embodiment, the radial filter structure720of the lid710includes a plurality of ledges722and a plurality of dimples724, and the filter assembly730includes a radial filter structure740disposed along the interior surface734. In particular, the radial filter structure740includes a plurality of ledges742and a plurality of dimples744positioned along the interior surface734. Each ledge722,742of the plurality of ledges722,742is formed between a pair of adjacent dimples724,744of the plurality of dimples724,744, respectively, such that a size and shape of each of the ledges722,742is relative to a distance and/or depth between each of the pair of adjacent dimples724,744of the respective filter structures720,740.

In some embodiments, the distance between adjacent ledges722,742of the filter structure720,740varies relative to one another along the lid710and/or the filter assembly730, respectively. In other embodiments, the distance between adjacent ledges722,742of the filter structure720,740, respectively, may be substantially similar to one another. Securing the interior surface734of the filter assembly730onto the exterior surface712of the lid710via engagement of corresponding latch elements of the lid710and the filter assembly730, respectively, provides a coupling of the filter structure720of the lid710with the filter structure740of the filter assembly730. In this instance, a tortuous filter path formed between the lid710and the filter assembly730, and in particular a radial tortuous filter path due a radially-shaped profile of the filter structures720,740of the lid710and the filter assembly730.

Still referring toFIG.11, the sterilization container700includes a single ingress point into the radial tortuous filter paths formed by the filter structure720of the lid710and the filter structure740of the filter assembly730at the radial inlet opening735and the recessed inlet716, respectively. Additionally, the sterilization container700includes multiple egress points from the radial tortuous path filter via the plurality of outlet openings718of the lid710. It should be understood that the plurality of ledges722,742of the filter structures720,740are sized and shaped to generate a plurality of structural impediments between the lid710and the filter assembly730in the form of physical obstructions, barriers, hurdles and/or the like along a tortuous filter path formed between the filter structures720,740, respectively. The plurality of structural impediments formed by the plurality of ledges722,742may vary based on a predetermined size and shape of the ledges722,742, such as, for example, a length, width and/or position of each of the plurality of ledges722,742.

Referring now toFIG.12, the plurality of dimples724,744formed between the plurality of ledges722,742of the filter structures720,740are sized and shaped to generate a plurality of structural impediments between the lid710and the filter assembly730in the form of physical cavities, recesses, depressions, troughs, and/or the like along the radial tortuous filter path formed between the filter structures720,740, respectively. The plurality of structural impediments formed by the plurality of dimples724,744may vary based on a predetermined size and shape of the dimples724,744such as, for example, a depth, diameter and/or position of each of the plurality of dimples724,744. With the lid710secured to the body702and the filter assembly730positioned over the lid710, the filter structure740is disposed over the filter structure720thereby forming a tortuous filter path therebetween.

In other words, the filter structure720is configured to mesh with the filter structure740in response to the lid710receiving the filter assembly730thereon. In particular, the plurality of ledges722of the filter structure720extend at least partially over the plurality of ledges742and/or the plurality of dimples744of the filter structure740. Further, the plurality of ledges742of the filter structure740extends at least partially over the plurality of ledges722and/or the plurality of dimples724of the filter structure720. It should be understood that in some embodiments the plurality of ledges722,742of the filter structures720,740are at least partially inserted into the plurality of dimples724,744when the filter structure740is disposed over the filter structure720such that the plurality of dimples724,744are sized and shaped to at least partially receive the plurality of ledges722,742therein. In other embodiments, the plurality of ledges722,742of the filter structures720,740are configured to engage one another such that the plurality of ledges722at least partially abut against the plurality of ledges742of the filter structure740.

VIII. Stackable Sterilization Containers with Nesting Feature

FIGS.13-14schematically depict an alternative embodiment of a sterilization container800. It should be understood that the sterilization container800may be substantially similar to the sterilization containers100,200,300,600,700shown and described above. Except as otherwise described below, the sterilization container800may be configured and operable like the sterilization containers100,200,300,600,700. Referring specifically toFIG.13, the sterilization container800includes a body802formed by a bottom wall804, one or more sidewalls806, and one or more end walls808. The walls804,806,808of the body802are generally sized and shaped to form an interior volume that is configured to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like. The body802of the sterilization container800further includes one or more engagement surfaces805along a juncture between the bottom wall804and the one or more end walls808thereby forming one or more recessed channels803extending therethrough. The one or more engagement surfaces805positioned between the bottom wall804and the end walls808extend at varying angles, orientations, and/or configurations therethrough to form the recessed channel803of the body802. As described in detail herein, the one or more recessed channels803provide nesting features for coupling the body802to one or more other components of the sterilization container800, such as, for example, a lid810.

In the present example, the body802of the sterilization container800includes a pair of opposing end walls808defining a longitudinal length of the body802in the +/−X direction ofFIG.13, and a pair of opposing sidewalls806defining a lateral width of the body802in the +/−Y direction ofFIG.13. The pair of opposing end walls808of the body802includes a plurality of engagement surfaces805extending from the bottom wall804and along each of the end walls808, thereby defining at least one recessed channel803thereon. In the present example the at least one recessed channel803extends along a longitudinal length of the bottom wall804of the body802between the pair of end walls808(i.e. in the +/−X direction of the coordinate axes in the figures) and has a trapezoidal configuration. As described in greater detail herein, the engagement surfaces805of the body802are sized and shaped in accordance with a size and shape of a component of the sterilization container800, such as, for example, a lid810. It should be understood that in other embodiments the body802of the sterilization container800may include additional and/or fewer engagement surfaces805at a juncture between the bottom wall804and the end walls808than those shown and described herein without departing from the scope of the present disclosure. Additionally, in some embodiments the engagement surfaces805of the body802may include various other sizes, shapes, arrangements, and/or configurations to thereby form recessed channels with varying profiles.

Still referring toFIG.13, the sterilization container800further includes a lid810defined by an exterior surface812and an interior surface opposite of the exterior surface812. The lid810of the sterilization container800further includes at least one coupling mechanism815disposed along the exterior surface812. In particular, the coupling mechanism815of the lid810extends outwardly from the exterior surface812such that the coupling mechanism815forms a protrusion thereon. The coupling mechanism815of the lid810extends along a longitudinal length of the exterior surface812in the +/−X direction ofFIG.13and is sized and shaped in accordance with a configuration of the recessed channel803of the body802. As described in greater detail herein, the coupling mechanism815provides a nesting feature for coupling the lid810to one or more other components of the sterilization container800, such as, for example, the body802. In particular, the coupling mechanism815on the lid810of one sterilization container800is configured to engage the recessed channel803on the body802of another sterilization container800. In the present example, the lid810of the sterilization container800includes one coupling mechanism815on the exterior surface812, however, it should be understood that in other embodiments the lid810may include additional coupling mechanisms815positioned on the exterior surface812and/or other surfaces of the lid810.

The lid810of the sterilization container800further includes an inlet816positioned along the coupling mechanism815, and in particular at a terminal end of the coupling mechanism815. In some embodiments the lid810of the sterilization container800includes one or more filter structures disposed within the coupling mechanism815such that a tortuous path filter is formed within the coupling mechanism815. In this instance, the inlet816of the lid810is configured to provide an ingress point into the coupling mechanism815, and more specifically toward the tortuous filter path positioned within the coupling mechanism815. Although not shown, it should be understood that the one or more filter structures and/or the tortuous path filter disposed within the coupling mechanism815of the lid810may be configured and operable similar to the filter structures120,140shown and described above. As described in greater detail herein, the inlet816of the lid810may be positioned along various other regions of the coupling mechanism815and/or the exterior surface812without departing from the scope of the present disclosure.

Referring now toFIG.14, a pair of sterilization containers800are schematically depicted in a stacked configuration with a first sterilization container800positioned over and received on a second sterilization container800. In particular, the second sterilization containers800receives the first sterilization container800via a corresponding engagement between the coupling mechanism815of the second, lower sterilization container800and the recessed channel803of the first, upper sterilization container800, respectively. With the recessed channel803sized and shaped in accordance with a size and shape of the coupling mechanism815, the first, upper sterilization container800is securely coupled to the second, lower sterilization container800in response to the recessed channel803receiving the coupling mechanism815therein.

In particular, the plurality of engagement surfaces805at a juncture between the bottom wall804and each of the pair of end walls808engage the coupling mechanism815of the lid810to thereby fasten the first, upper sterilization container800to the second, lower sterilization container800. The plurality of engagement surfaces805forming the recessed channel803of the body802are configured to inhibit a movement (e.g., lateral, longitudinal, and/or the like) of the coupling mechanism815of the lid810received therein. It should be understood that the first and second sterilization containers800are substantially similar and interchangeable with one another such that the description provided herein of a first and second sterilization container800is not intended to be limiting.

Still referring toFIG.13, the plurality of engagement surfaces805of the body802and the coupling mechanism815of the lid810are cooperatively sized, shaped, and configured to form one or more gaps801between the pair of sterilization containers800in response to at least one sterilization container800being stacked atop at least another sterilization container800. In this instance, the one or more gaps801extending along a longitudinal length of the sterilization containers800(i.e. in the +/−X direction of the coordinate axes in the figures), and more specifically between the plurality of sidewalls806of the body802on the first, upper sterilization container800and the exterior surface812of the lid810on the second, lower sterilization container800. In this instance, a clearance formed by the one or more gaps801facilitates an ingress point to the inlet816of the second, lower sterilization container800with the first, upper sterilization container800disposed thereon.

IX. Alternative Stackable Sterilization Containers with Nesting Feature

FIGS.15-16schematically depict an alternative embodiment of a sterilization container900that is substantially similar to the sterilization container800shown and described above. Except as otherwise described below, the sterilization container900may be configured and operable like the sterilization container800such that like reference numerals are used to identify like components. For instance, referring specifically toFIG.15, the sterilization container900includes the body802formed by the bottom wall804, one or more sidewalls806, and one or more end walls808as described above. The body802of the sterilization container900further includes one or more engagement surfaces805along a juncture between the bottom wall804and the one or more end walls808thereby forming one or more recessed channels803extending therethrough. The one or more engagement surfaces805positioned between the bottom wall804and the end walls808extend at varying angles, orientations, and/or configurations therethrough to form the recessed channel803of the body802.

In the present example, the body802of the sterilization container900includes a pair of opposing end walls808defining a longitudinal length of the body802in the +/−X direction ofFIG.15and a pair of opposing sidewalls806defining a lateral width of the body802in the +/−Y direction ofFIG.15. The pair of opposing end walls808of the body802includes a plurality of engagement surfaces805extending from the bottom wall804and along each of the end walls808, thereby defining at least one recessed channel803thereon. In the present example, the at least one recessed channel803extends along a longitudinal length of the bottom wall804of the body802between the pair of end walls808(i.e. in the +/−X direction of the coordinate axes in the figures) and has a trapezoidal configuration. Although the body802of the present example depicts a single recessed channel803formed along the bottom wall804, it should be understood that in other embodiments additional recessed channels803may be included on the body802. As described in greater detail above, the engagement surfaces805are sized and shaped in accordance with a size and shape of the lid810. It should be understood that in other embodiments the body802of the sterilization container900may include additional and/or fewer engagement surfaces805at a juncture between the bottom wall804and the end walls808than those shown and described herein. Additionally, in some embodiments the engagement surfaces805of the body802may include various other sizes, shapes, arrangements, and/or configurations to thereby form recessed channels with varying profiles.

Still referring toFIG.15, the body802of the sterilization container900further includes a plurality of engagement surfaces905extending from the bottom wall804and along each of the pair of sidewalls806, thereby defining at least one recessed channel907thereon. In the present example, the at least one recessed channel907extends along a lateral width of the bottom wall804of the body802between the pair of sidewalls806in the +/−Y direction ofFIG.15and has a trapezoidal configuration. The recessed channel803extending through a longitudinal length of the body802(i.e. in the +/−X direction of the coordinate axes in the figures) intersects with and forms a connection with the plurality of recessed channels907extending through a lateral width of the body802along the bottom wall804(i.e. in the +/−Y direction of the coordinate axes in the figures). Although the body802of the present example depicts three recessed channel907formed along the bottom wall804, it should be understood that in other embodiments additional recessed channels907may be included on the body802. It should further be understood that in other embodiments the body802of the sterilization container900may include additional and/or fewer engagement surfaces905at a juncture between the bottom wall804and the sidewalls906than those shown and described herein. Additionally, in some embodiments the engagement surfaces905of the body802may include various other sizes, shapes, arrangements, and/or configurations to thereby form recessed channels with varying profiles.

The sterilization container900further includes the lid810defined by the exterior surface812and an opposite interior surface opposite with the at least one coupling mechanism815disposed on and extending outwardly from the exterior surface812to form a protrusion thereon. The coupling mechanism815of the lid810extends along a longitudinal length of the exterior surface812in the +/−X direction ofFIG.15and is sized and shaped in accordance with a configuration of the recessed channel803of the body802. Although the lid810of the sterilization container900is shown and described herein as including one coupling mechanism815in other embodiments the lid810may include additional coupling mechanisms815along the exterior surface812and/or other surfaces of the lid810.

Still referring toFIG.15, the lid810of the sterilization container900further includes an inlet916positioned along the coupling mechanism815, and in particular along a sidewall of the coupling mechanism815that extends along a longitudinal length of the coupling mechanism815. In this instance, the inlet916extends on the coupling mechanism815between the opposing end walls808of the lid810. In some embodiments the lid810of the sterilization container900includes one or more filter structures disposed within the coupling mechanism815such that a tortuous path filter is formed therein and the inlet916is configured to provide an ingress point into the tortuous filter path positioned therein. Although not shown, it should be understood that the one or more filter structures and/or the tortuous path filter disposed within the coupling mechanism815of the lid810may be configured and operable similar to the filter structures120,140shown and described above.

Referring now toFIG.16, a pair of sterilization containers900are schematically depicted in a stacked configuration with a first sterilization container900positioned over and received on a second sterilization container900. In particular, the second sterilization container900receives the first sterilization container900via a corresponding engagement between the coupling mechanism815of the second, lower sterilization container900and the recessed channel803of the first, upper sterilization container900, respectively. With the recessed channel803sized and shaped in accordance with a size and shape of the coupling mechanism815, the first, upper sterilization container900is securely coupled to the second, lower sterilization container900in response to the recessed channel803receiving the coupling mechanism815therein.

In particular, the plurality of engagement surfaces805at a juncture between the bottom wall804and each of the pair of end walls808engage the coupling mechanism815of the lid810to thereby fasten the first, upper sterilization container900to the second, lower sterilization container900. The plurality of engagement surfaces805forming the recessed channel803of the body802are configured to inhibit a movement (e.g., lateral, longitudinal, and/or the like) of the coupling mechanism815of the lid810received therein. It should be understood that the first and second sterilization containers900are substantially similar and interchangeable with one another such that the description provided herein of a first and second sterilization container900is not intended to be limiting.

Still referring toFIG.16, the plurality of engagement surfaces805of the body802and the coupling mechanism815of the lid810are cooperatively sized, shaped, and configured to form one or more gaps801between the pair of sterilization containers900in response to at least one sterilization container900being stacked atop at least another sterilization container900. In this instance, the one or more gaps801extend along a longitudinal length of the sterilization containers900in the +/−X direction ofFIG.16, and more specifically between the pair of sidewalls806of the body802on the first, upper sterilization container900and the exterior surface812of the lid810on the second, lower sterilization container900. In this instance, a clearance formed by the one or more gaps801facilitates an ingress point to the inlet916of the second, lower sterilization container900with the first, upper sterilization container900disposed thereon.

Additionally, the plurality of recessed channels907included along the pair of sidewalls806of the first, upper sterilization container900facilitates a plurality of ingress points to the inlet916of the second, lower sterilization container900with the first, upper sterilization container900disposed thereon. With the inlet916included on a sidewall of the coupling mechanism815of the second, lower sterilization container900, access thereto is provided via the plurality of recessed channels907included on the pair of sidewalls806of the body802of the first, upper sterilization container900. In this instance, the plurality of recessed channels907of the upper sterilization container900are configured to align with the inlet916of the lower sterilization container900in response to the coupling mechanism815of the lower sterilization container900receiving and/or engaging the recessed channel803of the upper sterilization container900.

X. Alternative Sterilization Container with Rectangular Tortuous Path Filter

Referring now toFIGS.17-19, an alternative embodiment of a sterilization container1000that is substantially similar to the sterilization container100,200,300shown and described above is schematically depicted. Except as otherwise described below, the sterilization container1000may be configured and operable like the sterilization containers100,200,300. For instance, the sterilization container1000includes a body1002formed by a bottom wall1004, a plurality of sidewalls1006, and an open, top end1007that collectively define an interior volume1008therein. The interior volume1008of the body1002is generally sized to receive one or more devices therein, such as, for example, medical apparatuses, instruments, and/or the like. The sterilization container1000includes a lid1010that is secured to the body1002and includes an exterior surface1012and an interior surface1014opposite of the exterior surface1012. In particular, the interior surface1014of the lid1010is configured to engage the open, top end1007of the body102. The exterior surface1012of the lid1010includes a filter structure housing1015and a recessed inlet1016disposed thereon. As described in greater detail herein, the filter structure housing1015is sized and shaped to receive one or more components of the sterilization container1000therein, such as, for example, a filter assembly1030.

The sterilization container1000further includes the filter assembly1030having an exterior surface1032and an interior surface1034positioned opposite of the exterior surface1032. The exterior surface1032of the filter assembly1030includes an exterior filter structure1040disposed thereon that is sized and shaped in accordance with the filter structure housing1015of the lid1010, such that the exterior filter structure1040is configured to be received within the filter structure housing1015when the filter assembly1030is coupled to the lid1010. Except as otherwise described below, it should be understood that the exterior filter structure1040of the filter assembly1030is substantially similar and configured like the interior filter structure140of the filter assembly130shown and described above. For instance, the exterior filter structure1040of the filter assembly1030includes a plurality of ridges and troughs disposed thereon similar to the plurality of ridges142and troughs144of the interior filter structure140. However, the exterior filter structure1040is formed along the exterior surface1032of the filter assembly1030, rather than the interior surface1034as shown and described above with respect to the interior filter structure140of the filter assembly130.

Still referring toFIG.17, the exterior surface1032of the filter assembly1030further includes one or more latch elements1031disposed thereon. The one or more latch elements1031of the filter assembly1030are sized, shaped and configured to securely couple the filter assembly1030to the lid1010by engaging one or more corresponding features of the lid1010, such as, for example, one or more latch elements1011positioned along the interior surface1014(seeFIG.18). It should be understood that the one or more latch elements1031of the filter assembly1030are configured substantially similar to the one or more latch elements131of the filter assembly130shown and described above.

Referring now toFIG.18, the interior surface1014of the lid1010is depicted including the one or more latch elements1011disposed thereon. As similarly described in greater detail above with respect to the lid110of the sterilization container100, the one or more latch elements1011are sized, shaped and configured to securely couple the lid1010to one or the filter assembly1030of the sterilization container1000. The interior surface1014of the lid1010further includes an interior filter structure1020disposed thereon, wherein the interior filter structure1020extends along the interior surface1014and is positioned between the recessed inlet1016and an outlet opening1018of the lid1010. Except as otherwise described below, it should be understood that the interior filter structure1020of the lid1010is substantially similar and configured like the exterior filter structure120of the lid110shown and described above. For instance, the interior filter structure1020of the lid1010includes a plurality of ridges and troughs disposed thereon similar to the plurality of ridges122and troughs124of the exterior filter structure120. However, the interior filter structure1020is formed along the interior surface1014of the lid1010, rather than the exterior surface1012as shown and described above with respect to the exterior filter structure120of the lid110.

The filter assembly1030of the sterilization container1000further includes one or more ramps1037positioned along the interior surface1034. In particular, the one or more ramps1037are disposed about the outlet opening1038of the filter assembly1030, with a longitudinal length of the one or more ramps1037extending parallel to a width of the outlet opening1038. The one or more ramps1037forms a sloped-surface from the interior surface1034of the filter assembly1030toward the outlet opening1038. The outlet opening1038of the filter assembly1030is positioned adjacent to a terminal end of the exterior filter structure1040. In the present example, the exterior filter structure1040of the filter assembly1030is integrally-formed with the exterior surface1032such that the exterior filter structure1040forms a unitary structure with the filter assembly1030.

Still referring toFIG.18, the interior filter structure1020of the lid1010is integrally-formed with the interior surface1014such that the interior filter structure1020forms a unitary structure with the lid1010. However, it should be understood that in other embodiments one or more of the filter structures1020,1040may be removably assembled to the lid1010such that the interior filter structure1020is not integrally-formed with the lid1010. In this instance, the interior filter structure1020and the exterior filter structure1040may be preassembled to one another and configured to be selectively assembled onto the lid1010. It should be understood that in other embodiments one or more filter structures may be integrally formed and/or removably assembled onto the bottom wall1004of the body1002without departing from a scope of the present disclosure. In this instance, the sterilization container1000may include the interior filter structure1020along the lid1010, the exterior filter structure1040along the filter assembly1030, and an additional filter structure along the bottom wall1004of the body1002to facilitate an ingress and egress through the interior volume1008.

Referring now toFIG.19, the interior surface1014of the lid1010is coupled to the plurality of sidewalls1006of the body1002by engaging the open, top end1007. The exterior surface1032of the filter assembly1030is secured to the interior surface1014of the lid1010via a corresponding engagement of the one or more latch elements1011,1031. In this instance, the filter assembly1030is disposed within the interior volume1008of the body1002with the exterior filter structure1040of the filter assembly1030positioned relatively beneath the interior filter structure1020of the lid1010. More specifically, the exterior filter structure1040of the filter assembly1030is received within the filter structure housing1015of the lid1010such that the exterior filter structure1040meshes with the interior filter structure1020, thereby forming a rectangular tortuous filter path therebetween. The outlet opening1018of the lid1010is coupled to, and aligned with, the outlet opening1038of the filter assembly1030when the filter assembly1030is received within and coupled to the lid1010of the sterilization container1000.

Securing the exterior surface1032of the filter assembly1030onto the interior surface1014of the lid1010via the engagement of the corresponding latch elements1011of the lid1010and the latch element1031of the filter assembly1030, respectively, provides a coupling of the interior filter structure1020of the lid1010with the exterior filter structure1040of the filter assembly1030. In this instance, a tortuous path filter is formed between the lid1010and the filter assembly1030within the interior volume1008of the body1002. In particular, a rectangular tortuous path filter is formed due a rectangularly-shaped profile of the interior filter structure1020of the lid1010and a rectangularly-shaped profile of the exterior filter structure1040of the filter assembly1030. The sterilization container1000includes an ingress point into the tortuous path filter formed by the interior filter structure1020of the lid1010and the exterior filter structure1040of the filter assembly1030at the recessed inlet1016. Additionally, the sterilization container1000includes a single egress point from the tortuous path filter via the outlet opening1018of the lid1010and the outlet opening1038of the filter assembly1030aligned therewith, respectively.

Further aspects are provided by the subject matter in the following clauses:

1. A sterilization container for sterilizing medical instruments, the sterilization container comprising: a body defining an interior volume; a lid connected to the body and configured to seal the interior volume between the lid and the body, the lid comprising an exterior filter structure integrally formed thereon, the exterior filter structure comprising: a first plurality of ridges; and a first plurality of troughs formed between the first plurality of ridges; a filter assembly connected to the lid and comprising an interior filter structure integrally formed thereon, the interior filter structure comprising: a second plurality of ridges; and a second plurality of troughs formed between the second plurality of ridges; wherein the first plurality of ridges of the exterior filter structure are interposed between the second plurality of ridges of the interior filter structure; and wherein the exterior filter structure and the interior filter structure are configured to form a series of longitudinal channels positioned between the lid and the filter assembly to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

2. The sterilization container of any preceding clause, wherein at least one trough of the second plurality of troughs has a length that extends at least two ridges of the first plurality of ridges.

3. A sterilization container comprising: a body defining an interior volume; a lid coupled to the body and configured to seal the interior volume therebetween, the lid includes a first filter structure comprising: a first plurality of ridges; and a first plurality of troughs formed between the first plurality of ridges; a filter assembly coupled to the lid and configured to seal the first filter structure therebetween, the filter assembly includes a second filter structure comprising: a second plurality of ridges; and a second plurality of troughs formed between the second plurality of ridges; wherein the first filter structure is configured to mesh with the second filter structure such that the first plurality of ridges is coupled to the second plurality of troughs and the first plurality of troughs is coupled to the second plurality of ridges; and wherein the first filter structure and the second filter structure are configured to form a series of longitudinal channels positioned between the lid and the filter assembly to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

4. The sterilization container of any preceding clause, wherein the lid includes a first inlet opening and a first outlet opening disposed about opposing ends of the first filter structure, and the filter assembly includes a second inlet opening and a second outlet opening disposed about opposing ends of the second filter structure.

5. The sterilization container of any preceding clause, wherein the first inlet opening is in communication with the second inlet opening and the first outlet opening is in communication with the second outlet opening in response to the first filter structure meshing with the second filter structure.

6. The sterilization container of any preceding clause, wherein the first inlet opening is a recessed depression along an exterior surface of the lid, and the second inlet opening is an aperture extending through the filter assembly.

7. The sterilization container of any preceding clause, wherein the filter assembly includes one or more ramps disposed about the second inlet opening that define curved surfaces extending from an exterior surface of the filter assembly toward the second inlet opening.

8. The sterilization container of any preceding clause, wherein the one or more ramps are configured to direct airflow toward the second inlet opening of the filter assembly.

9. The sterilization container of any preceding clause, wherein the lid includes a plurality of first filter structures disposed along an exterior surface of the lid and the filter assembly includes a plurality of second filter structures disposed along an interior surface of the filter assembly.

10. The sterilization container of any preceding clause, wherein the body is sized and shaped to receive one or more medical devices within the interior volume.

11. A modular lid of a sterilization container comprising: a modular body including an inlet and a plurality of movable body segments, wherein the modular body is configured to selectively expand and collapse the plurality of movable body segments relative to one another to thereby selectively adjust a longitudinal length of the modular lid; a first filter structure disposed within the modular body and including a first plurality of ridges and a first plurality of troughs formed between the first plurality of ridges; and a second filter structure disposed within the modular body and including a second plurality of ridges and a second plurality of troughs formed between the second plurality of ridges; wherein the first filter structure is to the second filter structure such that the first plurality of ridges is coupled to the second plurality of troughs and the first plurality of troughs is coupled to the second plurality of ridges thereby forming a series of rectangular channels within the modular body to define a rectangular tortuous filter path that inhibits ingress and egress from the sterilization container; and wherein the first filter structure and the second filter structure are configured to expand and collapse in response to expansion and collapse of the plurality of movable body segments of the modular body.

12. The modular lid of any preceding clause, wherein the first filter structure is configured to expand the first plurality of ridges and the first plurality of troughs in response to an expansion of the modular body, and further configured to collapse the first plurality of ridges and the first plurality of troughs in response to a collapse of the modular body.

13. The modular lid of any preceding clause wherein the second filter structure is configured to expand the second plurality of ridges and the second plurality of troughs in response to an expansion of the modular body, and further configured to collapse the second plurality of ridges and the second plurality of troughs in response to a collapse of the modular body.

14. The modular lid of any preceding clause, wherein expanding the first plurality of ridges and the first plurality of troughs includes forming additional ridges and troughs within the first filter structure.

15. The modular lid of any preceding clause, wherein expanding the second plurality of ridges and the second plurality of troughs includes forming additional ridges and troughs within the second filter structure.

16. The modular lid of any preceding clause, wherein the inlet is configured to expand in response to an expansion of the modular body, and further configured to collapse in response to a collapse of the modular body.

17. The modular lid of any preceding clause, wherein the inlet is configured to maintain a fixed configuration in response to an expansion and collapse of the modular body.

18. A sterilization container comprising: a body including a bottom wall and a plurality of sidewalls extending outwardly therefrom to define an interior volume disposed therebetween, each of the plurality of sidewalls includes a first filter structure comprising: a first plurality of ridges; and a first plurality of troughs formed between the first plurality of ridges; a lid coupled to the body and configured to seal the interior volume therein, the lid including a top wall and a plurality of sidewalls extending outwardly therefrom, each of the plurality of sidewalls includes a second filter structure comprising: a second plurality of ridges; and a second plurality of troughs formed between the second plurality of ridges; wherein the plurality of sidewalls of the lid are received within the interior volume and positioned against the plurality of sidewalls of the body such that the first filter structures along the first plurality of sidewalls are configured to mesh with the second filter structures along the second plurality of sidewalls of the lid; and wherein the first filter structures and the second filter structures are configured to form a series of rectangular channels positioned between the lid and the body to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

19. The sterilization container of any preceding clause, wherein the first plurality of ridges of the first filter structures positioned along the first plurality of sidewalls are coupled to the second plurality of troughs of the second filter structures positioned along the second plurality of sidewalls.

20. The sterilization container of any preceding clause, wherein the first plurality of troughs of the first filter structures positioned along the first plurality of sidewalls are coupled to the second plurality of ridges of the second filter structures positioned along the second plurality of sidewalls.

21. The sterilization container of any preceding clause, wherein the lid is configured to form a plurality of inlets between the top wall, the plurality of sidewalls of the lid, and the plurality of sidewalls of the body in response to the lid coupling the base.

22. The sterilization container of any preceding clause, wherein the lid is configured to form a plurality of outlet openings between the bottom wall, the plurality of sidewalls of the lid, and the plurality of sidewalls of the body in response to the lid coupling the base.

23. The sterilization container of any preceding clause, wherein the bottom wall of the body includes one or more standoffs extending outwardly therefrom adjacent to the plurality of sidewalls, wherein the one or more standoffs at least partially define the plurality of outlet openings.

24. The sterilization container of any preceding clause, wherein the plurality of sidewalls of the lid includes one or more standoffs extending outwardly therefrom opposite of the top wall, wherein the one or more standoffs at least partially define the plurality of outlet openings.

25. A sterilization container comprising: a body defining an interior volume; a lid coupled to the body and configured to seal the interior volume therebetween, the lid includes a first radial filter structure comprising: a first plurality of dimples; and a first plurality of ledges formed about the first plurality of dimples; a filter assembly coupled to the lid and configured to seal the first radial filter structure therebetween, the filter assembly includes a second radial filter structure comprising: a second plurality of dimples; and a second plurality of ledges formed about the second plurality of dimples; wherein the first radial filter structure is configured to mesh with the second radial filter structure such that the first plurality of dimples is coupled to the second plurality of dimples and the first plurality of ledges is coupled to the second plurality of ledges; and wherein the first radial filter structure and the second radial filter structure are configured to form a series of recessed depressions positioned between the lid and the filter assembly to define a radial tortuous filter path that inhibits ingress and egress from the interior volume.

26. The sterilization container of any preceding clause, wherein the lid includes a first inlet opening disposed at a center of the first radial filter structure and a plurality of first outlet openings disposed about a boundary of the first radial filter structure.

27. The sterilization container of any preceding clause, wherein the filter assembly includes a second inlet opening disposed at a center of the second radial filter structure and a second outlet opening disposed about a boundary of the second radial filter structure.

28. The sterilization container of any preceding clause, wherein the first inlet opening is in communication with the second inlet opening and the plurality of first outlet openings are in communication with the second outlet opening in response to the first radial filter structure meshing with the second radial filter structure.

29. The sterilization container of any preceding clause, wherein the first inlet opening is a recessed depression along an exterior surface of the lid, and the second inlet opening is an aperture extending through the filter assembly.

30. The sterilization container of any preceding clause, wherein the filter assembly includes one or more ramps disposed about the second inlet opening that define curved surfaces extending from an exterior surface of the filter assembly toward the second inlet opening.

31. The sterilization container of any preceding clause, wherein the one or more ramps are configured to direct airflow toward the second inlet opening of the filter assembly.

32. The sterilization container of any preceding clause, wherein the body is sized and shaped to receive one or more medical devices within the interior volume.

33. A stackable sterilization container comprising: a body including a bottom wall and a plurality of sidewalls extending outwardly therefrom to define an interior volume disposed therebetween, wherein the bottom wall includes one or more recessed channels extending between the plurality of sidewalls; and a lid coupled to the body and configured to seal the interior volume therein, the lid including: a top wall; and an engagement mechanism extending outwardly from the top wall, the engagement mechanism includes an inlet and one or more filter structures disposed therein, the engagement mechanism is sized and shaped relative to the one or more recessed channels such that the engagement mechanism is configured to engage the recessed channel; wherein the one or more filter structures are configured to form a series of rectangular channels within the lid to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume; wherein the one or more recessed channels are configured to form gaps to access the inlet of the lid when the engagement mechanism is received within at least one of the one or more recessed channels.

34. A sterilization container for sterilizing medical instruments, the sterilization container comprising: a body defining an interior volume; a lid connected to the body and configured to seal the interior volume between the lid and the body, the lid comprising an interior filter structure positioned thereon, the interior filter structure comprising: a first plurality of ridges; and a first plurality of troughs formed between the first plurality of ridges; a filter assembly connected to the lid and comprising an exterior filter structure positioned thereon, the interior filter structure comprising: a second plurality of ridges; and a second plurality of troughs formed between the second plurality of ridges; wherein the first plurality of ridges of the exterior filter structure are interposed between the second plurality of ridges of the interior filter structure; and wherein the interior filter structure and the exterior filter structure are configured to form a series of longitudinal channels positioned between the lid and the filter assembly to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

35. The sterilization container of any preceding clause, wherein the interior filter structure is integrally-formed on the lid such that the interior filter structure and the lid are a unitary structure.

36. The sterilization container of any preceding clause, wherein the interior filter structure is releasably coupled to the lid such that the interior filter structure is configured to selectively engage the lid.

37. The sterilization container of any preceding clause, wherein the exterior filter structure is integrally-formed on the filter assembly such that the exterior filter structure and the filter assembly are a unitary structure.

38. The sterilization container of any preceding clause, wherein the exterior filter structure is releasably coupled to the filter assembly such that the exterior filter structure is configured to selectively engage the filter assembly.

39. A sterilization container comprising: a body defining an interior volume; a lid coupled to the body and configured to seal the interior volume therebetween, the lid includes a first filter structure disposed within the interior volume and comprising: a first plurality of ridges; and a first plurality of troughs formed between the first plurality of ridges; a filter assembly coupled to the lid and disposed within the interior volume, the filter assembly is configured to seal the first filter structure therebetween and includes a second filter structure comprising: a second plurality of ridges; and a second plurality of troughs formed between the second plurality of ridges; wherein the first filter structure is configured to mesh with the second filter structure such that the first plurality of ridges is coupled to the second plurality of troughs and the first plurality of troughs is coupled to the second plurality of ridges; and wherein the first filter structure and the second filter structure are configured to form a series of longitudinal channels positioned between the lid and the filter assembly to define a rectangular tortuous filter path that inhibits ingress and egress from the interior volume.

40. A sterilization container comprising: a body defining an interior volume; a lid coupled to the body and configured to seal the interior volume therebetween, a filter assembly releasably coupled to the lid, the filter assembly comprising a first filter structure coupled to a second filter structure, wherein the first filter structure includes a first plurality of ridges and a first plurality of troughs formed between the first plurality of ridges, and the second filter structure includes a second plurality of ridges and a second plurality of troughs formed between the second plurality of ridges; wherein the first plurality of ridges mesh with the second plurality of troughs and the first plurality of troughs mesh with the second plurality of ridges, thereby forming a series of longitudinal channels positioned therebetween and defining a rectangular tortuous filter path that inhibits ingress and egress through the filter assembly.

41. The sterilization container of any preceding clause, wherein the filter assembly is configured to selectively engage the lid such that the rectangular tortuous filter path is removable from the lid.

42. The sterilization container of any preceding clause, wherein the filter assembly is coupled to the lid along an exterior surface of the lid such that the filter assembly is external of the interior volume of the body.

43. The sterilization container of any preceding clause, wherein the filter assembly is coupled to the lid along an interior surface of the lid such that the filter assembly is disposed within the interior volume of the body.

For the purposes of describing and defining the present invention it is noted that the term “substantially” is used herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. The term “substantially” is used herein also to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue. As such, it is used to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation, referring to an arrangement of elements or features that, while in theory would be expected to exhibit exact correspondence or behavior, may in practice embody something slightly less than exact.