Patent Description:
Products, packages, and systems used to retain and transmit medical fluids often comprise an access port for conducting fluid. For example, a port may be incorporated into an I. bag, a bottle, or a Y-site device installed along a fluid pathway. Through the port, a medical fluid may be introduced or withdrawn from the product, package, or system. Likewise, the port can present an opportunity for the medical fluid to become diluted, altered, or contaminated. <CIT> discloses an antiseptic cap according to the preamble of claim <NUM>, and packaging for use with a connector. The antiseptic cap includes a material containing an antiseptic solution. Upon application of the cap to the connector, the material compresses thereby releasing the antiseptic solution. Packaging of the antiseptic cap typically includes a cap holder and a lid. A user could remove the cap from the cap holder before applying it to a connector. Alternatively, the cap holder may be used to apply the cap to the connector. <CIT> discloses an apparatus for infusing liquids into a patient comprising: (a) a Y site having a tubular body portion and an arm portion extending laterally therefrom, said tubular portion having a locking member and first and second ports, said first port being closed by a penetrable seal; and (b) a connector for releasable interconnection with said Y site, said connector comprising: (i) a cannula; and (ii) a sheath assembly including a body having a longitudinally extending central axis and comprising a cylindrical wall surrounding said cannula over its length, said wall having a slot for receiving said arm portion of said Y site and including first locking means for locking engagement with said locking member of said Y site to lockably interconnect said connector with said Y site, said locking means being movable from a first locked position to a second unlocked position and comprising a pair of longitudinally extending locking members defined by spaced apart longitudinally extending slits provided in said cylindrical wall of said body, said locking members being yieldably deformable from a first position substantially parallel with said central axis to a second, non-parallel position. <CIT> discloses liquid drug transfer devices with universal drug vial adapters for use with a drug vial of a small drug vial and a large drug vial. Some universal drug vial adapters employ the same generally opposite upright flex members for clamping a small drug vial and a large drug vial. Other universal drug vial adapters include a set of minor flex members for clamping a small drug vial and a set of major flex members encircling the set of minor flex members for clamping a large drug vial whereupon the large drug vial underlies the set of minor flex members. Liquid drug transfer devices with a universal injection port connector for attachment on an injection port of an infusion bag.

Restricted access, through a port, to medical fluid is desired to prevent inadvertent contamination or spread of infection to the fluid. Unauthorized altering or adulteration is a serious threat to recipients of medical fluid that may change as a result of fluid infusion through the port. The unauthorized withdrawal of a portion of the medical fluid may also result in the recipient receiving an incorrect dosage of medical fluid. Additionally, toxic medical fluids, such as compounds used in chemotherapy, may be harmful to a person who comes into contact with the substance. The invention is defined in the claims.

An aspect of the present disclosure provides a tamper-resistant cap for a medical adapter, the cap comprising: a housing having (i) an closed top end, (ii) an opposing open bottom end, and (iii) a side wall between the top end and the bottom end, the housing defining an axis extending between the top end and the bottom end; a plurality of legs that extend from the housing away from the bottom end; a member extending radially from an inner surface of at least one leg, wherein the member comprises a ramp surface, an engagement surface extending transversely to the ramp surface, and an apex area that transitions between the ramp surface and the engagement surface; wherein each leg is configured to flex radially in relation to the axis of the housing.

In some instances, a cross-sectional width between each radially-extending member is less than a cross-sectional width of an outer surface of a port. In some implementations, the legs combine to define an opening. In certain instances of the present disclosure, the housing comprises a first cross-sectional width at the bottom end that is greater than a second cross-sectional width at the top end. In some embodiments, an outer surface of the side wall is tapered from the bottom end to the top end. In some embodiments, an outer surface of the side wall comprises a plurality of ribs disposed from the bottom end to the top end.

In some embodiments of the present disclosure, a portion of each leg adjacent to the member defines a collar segment extending laterally from the leg. In some embodiments, each collar segment defines an arc. In some instances, each collar segment of the leg is configured to mate together to form a collar when the plurality of legs are pivoted toward the bottom end such that the collar is co-axial with the housing. In some implementations, each collar segment comprises one of at least a latch and a strike configured to couple each collar segment together. Some embodiments provide each leg is pivotable about a hinge. In some embodiments, the hinge is a living hinge.

An aspect of the present disclosure provides a tamper-resistant cap comprising: a housing having (i) an closed top end, (ii) an opposing open bottom end, and (iii) a side wall between the top end and the bottom end, the housing defining an axis extending between the top end and the bottom end; a plurality of legs that extend from the housing away from the bottom end, wherein the housing and at least one leg define at least one window; a tab extending from a bottom of each window toward the top end; and a member extending radially from an inner surface of each tab, wherein each member comprises a ramp surface, an engagement surface extending transversely to the ramp surface, and an apex area that transitions between the ramp surface and the engagement surface.

According to certain implementations of the present disclosure, the legs combine to define an opening. In some instances, a portion of the outer surface of the side wall is tapered toward the top end. In certain instances of the present disclosure, the housing comprises a first cross-sectional width at the bottom end that is greater than a second cross-sectional width at the top end.

Some embodiments provide an insert configured to mate within the housing between an inner surface of the top end and the engagement surface of each member, the insert comprising: a first end and an opposing second end, wherein the first end defines a cavity; wherein the inner surface of the top end and the second end are configured such that (i) the insert is configured to move a distance between the top end and each engagement surface, and (ii) the housing and insert engage to rotate together in one direction and disengage from each other when rotated in an opposite direction.

In some instances, an inner surface of the cavity comprises a thread. In some instances, the inner surface of the top end and the second end together comprise a ratchet and pawl. In some implementations, the cavity comprises a protrusion extending toward the first end. Some embodiments provide the first end further comprises a radial flange.

Additional features and advantages of the subject technology will be set forth in the description below, and in part will be apparent from the description, or may be learned by practice of the subject technology. The advantages of the subject technology will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the subject technology as claimed.

The accompanying drawings, which are included to provide further understanding of the subject technology and are incorporated in and constitute a part of this description, illustrate aspects of the subject technology and, together with the specification, serve to explain principles of the subject technology. <FIG> and <FIG> show an embodiment of a tamper-resistant cap according to the invention, while the remaining figures do not show embodiments falling under the scope of the appended claims.

In the following detailed description, specific details are set forth to provide an understanding of the subject technology. It will be apparent, however, to one ordinarily skilled in the art that the subject technology may be practiced without some of these specific details. In other instances, well-known structures and techniques have not been shown in detail so as not to obscure the subject technology.

A phrase such as "an aspect" does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology. An aspect may provide one or more examples of the disclosure. A phrase such as "an aspect" may refer to one or more aspects and vice versa. A phrase such as "an embodiment" does not imply that such embodiment is essential to the subject technology or that such embodiment applies to all configurations of the subject technology. An embodiment may provide one or more examples of the disclosure. A phrase such "an embodiment" may refer to one or more embodiments and vice versa. A phrase such as "a configuration" does not imply that such configuration is essential to the subject technology or that such configuration applies to all configurations of the subject technology. A configuration may provide one or more examples of the disclosure. A phrase such as "a configuration" may refer to one or more configurations and vice versa.

The present disclosure relates to a tamper-resistant cap for use with products, packages, or systems employing an access port. <FIG> illustrates a tamper-resistant cap configured to be coupled to a port <NUM> having an exterior threads or a ridge <NUM>. The tamper-resistant cap comprises a housing <NUM> having a closed top end <NUM> and an opposing open bottom end <NUM>. A side wall <NUM> extends between the top end <NUM> and the bottom end <NUM>, and is disposed circumferentially about an axis <NUM> extending between the top end <NUM> and the bottom end <NUM>. In some embodiments, one or more apertures are disposed through the top end <NUM>. A plurality of legs <NUM> extend from the housing <NUM> away from the bottom end <NUM>, each leg <NUM> capable of flexing with respect to the axis <NUM>. A space, defined between adjoining legs <NUM> and bounded at one end by the bottom end <NUM>, allows each leg to flex independently of an adjoining leg <NUM>. An inner surface of at least one leg <NUM> includes a member <NUM>. Each member <NUM> extends radially inward from the inner surface of the leg <NUM> toward the axis <NUM>.

Referring to <FIG>, a plurality of legs <NUM> each comprise a member <NUM> extending toward the axis <NUM>. Each member <NUM> comprises a ramp surface <NUM> and an engagement surface <NUM> extending toward the axis <NUM>. The ramp surface <NUM> and the engagement surface <NUM> are oriented transversely to each other. An apex area <NUM> is disposed at the interface between the ramp surface <NUM> and the engagement surface <NUM>. In a preferred embodiment, the cross-sectional width between the apex areas <NUM> of opposing radially-extending members <NUM> is less than the cross-sectional width of an exterior thread or ridge <NUM> of the port <NUM>.

Referring to <FIG>, the tamper-resistant cap may be coupled to a port <NUM> by first aligning the housing <NUM> with the port <NUM> such that the axis <NUM> is coaxial with the opening <NUM> of the port <NUM> and the legs <NUM> extend from the housing <NUM> toward the port <NUM>. When the tamper-resistant cap is moved towards the port <NUM>, the ramp surfaces <NUM> contact an exterior thread or ridge <NUM> on the port <NUM>. Additional movement of the tamper-resistant cap toward the port <NUM> causes the legs <NUM> to flex radially away from the axis <NUM>. Once the legs <NUM> extend radially away from the axis <NUM>, the tamper-resistant cap may be moved further onto the port <NUM> such that the apex area <NUM> passes over the exterior ridge or thread. After the apex area <NUM> passes over the exterior ridge or thread, the engagement surface <NUM> allows the legs to at least partially return toward the axis <NUM>. In a preferred embodiment, the engagement surface <NUM> engages the exterior thread or ridge <NUM> of the port <NUM> but does not cause the legs to flex radially outward from the axis <NUM> when the tamper-resistant cap is moved in an opposite direct, away from the port <NUM>.

Referring to the embodiments of <FIG>, a tamper-resistant cap comprises a housing <NUM> having a closed top end <NUM>, an opposing open bottom end <NUM>, and a sidewall <NUM> extending between the top end <NUM> and bottom end <NUM>. The sidewall <NUM> is disposed circumferentially about an axis <NUM> extending between the top end <NUM> and the bottom end <NUM>. The exterior surface of the housing has a first cross-sectional width at the bottom end <NUM> and a second cross-sectional width at the top end <NUM>. In a preferred embodiment, the first cross-sectional width is greater than the second cross-sectional width. In some embodiments, the exterior surface of the sidewall <NUM> includes a transition step <NUM> between the bottom end <NUM> and the top end <NUM>. A plurality of ribs <NUM> are disposed on the sidewall <NUM> and extend from the bottom end <NUM> to the top end <NUM>. The ribs <NUM> extend over the transition step <NUM> and are tapered from the first cross-sectional width at the bottom end <NUM> to the second cross-sectional width at the top end <NUM>. In some embodiments, the exterior is sidewall <NUM> is tapered between the bottom end <NUM> the top end <NUM>.

Referring to <FIG>, a plurality of legs <NUM> extend from the housing <NUM> away from the bottom end <NUM>. A member <NUM> is disposed on an inner surface of at least one leg <NUM>. Each member <NUM> extends radially inward from the leg <NUM> toward the axis <NUM>. Each member <NUM> comprises a ramp surface <NUM> and an engagement surface <NUM> extending toward the axis <NUM>. An apex area <NUM> is disposed at the interface between the ramp surface <NUM> and the engagement surface <NUM>. In a preferred embodiment, the cross-sectional width between the apex areas <NUM> of opposing radially-extending members <NUM> is less than the cross-sectional width of the exterior thread or ridge <NUM> of the port <NUM>.

In some embodiments, the housing <NUM> and legs <NUM> define a space between each of the legs <NUM>, thereby allowing each leg <NUM> to flex independently of the adjoining leg <NUM>. In a preferred embodiment, the space defined by the housing <NUM> and legs <NUM> is an opening <NUM>. The opening <NUM> allows the tamper-resistant cap to be coupled to a port on a device having an irregular area immediately adjacent to the port. For example, the opening <NUM> allows the tamper-resistant to be coupled to a Y-site (not shown) having a first branch and a second branch. When the tamper-resistant cap is coupled to a port on the first branch of a Y-site, the second branch extends through the opening <NUM>.

<FIG> illustrate a tamper-resistant cap comprises a housing <NUM> having a closed top end <NUM>, an opposing open bottom end <NUM>, and a sidewall <NUM> extending between the top end <NUM> and bottom end <NUM>. The sidewall <NUM> is disposed circumferentially about an axis <NUM> extending between the top end <NUM> and the bottom end <NUM>.

A plurality of legs <NUM> extend from the top end <NUM> of the housing <NUM> toward the bottom end <NUM>. Each leg is pivotably coupled at the top end <NUM> by a hinge <NUM>. The hinge <NUM> allows each leg to pivot toward and away from the bottom end <NUM> along a plane parallel or substantially parallel to the axis <NUM>, such that each leg can extend outward as depicted in <FIG>. In some embodiments, the hinge <NUM> is a thin flexible living hinge between each leg <NUM> and the top end <NUM>.

A portion of each leg <NUM> adjacent to the member <NUM> defines a collar segment <NUM> extending laterally from the leg <NUM>. Each collar segment <NUM> is shaped as an arc whereby a collar is formed when each leg <NUM> having a collar segment <NUM> is pivoted toward the axis <NUM>. The collar portions <NUM> are configured to mate together to form a collar around the axis <NUM> of the housing <NUM>. In some embodiments, the collar segments <NUM> mate together using a latch <NUM> and a strike <NUM> between each collar segment <NUM>. In a preferred embodiment, a mating surface of each collar segment <NUM> comprises one of at least a latch <NUM> and a strike <NUM>.

Referring to <FIG>, a member <NUM> is disposed on an inner surface of each leg <NUM>. Each member <NUM> extends radially inward from the leg <NUM> toward the axis <NUM>. Each member <NUM> comprises an engagement surface <NUM> extending toward the axis <NUM>, and an apex area <NUM>. In a preferred embodiment, the cross-sectional width between the apex areas <NUM> of opposing radially-extending members <NUM> is less than the exterior thread or ridge <NUM> of the port <NUM>.

The tamper-resistant cap of <FIG> can be coupled to a port <NUM> by first aligning the bottom end <NUM> of the housing <NUM> with the port <NUM> such that the axis <NUM> is coaxial with the opening <NUM> of the port <NUM>. The legs <NUM> may then be pivoted toward the bottom end <NUM> until a collar segment <NUM> is adjacent to an outer surface of the port <NUM>, and the engagement surface <NUM> is adjacent to an exterior thread or ridge <NUM> of the port <NUM>. Each collar segment <NUM> may then be coupled together by engaging each latch <NUM> and strike <NUM> combination. Once the collar segments are <NUM> are engaged, the engagement surface <NUM> abuts the exterior thread or ridge <NUM> of the port <NUM> but does not cause the legs to flex away from the axis <NUM> when the tamper-resistant cap is moved in an opposite direct, away from the port <NUM>.

Referring to <FIG>, a tamper-resistant cap comprises a housing <NUM> having a closed top end <NUM>, an opposing open bottom end <NUM>, and a sidewall <NUM> extending between the top end <NUM> and bottom end <NUM>. The sidewall <NUM> is disposed circumferentially about an axis <NUM> extending between the top end <NUM> and the bottom end <NUM>. The exterior surface of the housing has a first cross-sectional width at the bottom end <NUM> and a second cross-sectional width at the top end <NUM>. In a preferred embodiment, the first cross-sectional width is greater than the second cross-sectional width. In some embodiments, a portion of the exterior surface of the sidewall <NUM>, between the first cross-sectional width at the bottom end <NUM> and the second cross-sectional width at the top end <NUM>, includes a transition step <NUM>.

A plurality of legs <NUM> extend from the housing <NUM> away from the bottom end <NUM>. In some embodiments, a window <NUM> is defined by the housing <NUM> and at least one leg <NUM>. A tab <NUM> extends from an edge of each window, towards the top end <NUM>. Preferably, the tab <NUM> extends from an edge of the window opposite the top end <NUM>. A member <NUM> is disposed on an inner surface of each tab <NUM>. Each member <NUM> extends radially inward from the tab <NUM> toward the axis <NUM>. Each member <NUM> comprises a ramp surface <NUM> and an engagement surface <NUM> extending toward the axis <NUM>. An apex area <NUM> is disposed at the interface between the ramp surface <NUM> and the engagement surface <NUM>. In a preferred embodiment, the cross-sectional width between the apex areas <NUM> of opposing radially-extending members <NUM> is less than the cross-sectional width of the exterior thread or ridge <NUM> of the port <NUM>.

In some embodiments, an opening <NUM> is defined by the housing <NUM> and legs <NUM> between each of the legs <NUM>. The opening <NUM> allows the tamper-resistant cap to be coupled to a port on a device having an irregular area immediately adjacent to the port. For example, the opening <NUM> allows the tamper-resistant to be coupled to a Y-site (not shown) having a first branch and a second branch. When the tamper-resistant cap is coupled to a port on the first branch of a Y-site, the second branch extends through the opening <NUM>.

In some embodiments, a plurality of ribs are disposed on the sidewall <NUM> and extend from the bottom end <NUM> to the top end <NUM>. The ribs extend over the transition step <NUM> and are tapered from the first cross-sectional width at the bottom end <NUM> to the second cross-sectional width at the top end <NUM>. In some embodiments, the exterior sidewall <NUM> is tapered between the bottom end <NUM> the top end <NUM>.

The tamper-resistant cap may be coupled to a port <NUM> by first aligning the housing <NUM> with the port <NUM> such that the axis <NUM> is aligned and coaxial with the opening <NUM> of the port <NUM> and the legs <NUM> extending from the housing <NUM> toward the port <NUM>. When the tamper-resistant cap is moved towards the port <NUM>, the ramp surfaces <NUM> contact an exterior thread or ridge <NUM> on the port <NUM>. Additional movement of the tamper-resistant cap toward the exterior thread or ridge <NUM> causes the tabs <NUM> to flex radially away from the axis <NUM>. Once the tabs <NUM> extend radially away from the axis <NUM>, the tamper-resistant cap may be moved further onto the port <NUM> such that the apex area under <NUM> passes over the exterior thread or ridge <NUM>. After the apex area <NUM> passes over the exterior ridge or thread, the engagement surface <NUM> allows the legs to at least partially return toward the axis <NUM>. In a preferred embodiment, the engagement surface <NUM> engages the exterior thread or ridge <NUM> of the port <NUM> but does not cause the legs to flex radially outward from the axis <NUM> when the tamper-resistant cap is moved in an opposite direct, away from the port <NUM>.

<FIG> illustrate a tamper-resistant cap comprising a housing <NUM> and an insert <NUM>. The housing <NUM> has a closed top end <NUM>, an opposing open bottom end <NUM>, and a sidewall <NUM> extending between the top end <NUM> and bottom end <NUM>. The sidewall <NUM> is disposed circumferentially about an axis <NUM> extending between the top end <NUM> and the bottom end <NUM>. A plurality of legs <NUM> extend from the housing <NUM> away from the bottom end <NUM>.

Referring to <FIG>, the housing <NUM> and legs <NUM> define a space between each of the legs <NUM>, thereby allowing each leg <NUM> to flex independently of the adjoining leg <NUM>. A member <NUM> is disposed on an inner surface of each leg <NUM>. Each member <NUM> extends radially inward from the leg <NUM> toward the axis <NUM>. Each member <NUM> comprises a ramp surface <NUM> and an engagement surface <NUM> extending toward the axis <NUM>. An apex area <NUM> is disposed at the interface between the ramp surface <NUM> and the engagement surface <NUM>. The inside surface of the top end <NUM> of the housing <NUM> comprises a circumferential series of angular ridges <NUM>.

<FIG> illustrates an insert <NUM> having a first end <NUM> and an opposing second end <NUM>. The insert <NUM> defines a flange <NUM>, disposed at the first end <NUM> and extending radially away from the insert <NUM>. In a preferred embodiment, the cross-sectional width between the apex areas <NUM> of opposing members <NUM> is less than the cross-sectional width of the flange <NUM>.

The insert <NUM> further defines a cavity through the first end <NUM> extending partially toward the inside surface of the second end <NUM>. In some embodiments, an inside surface of the cavity comprises a threaded surface <NUM>. In some embodiments, a protrusion <NUM> extends from the inside surface of the second end <NUM> toward the first end <NUM>. In a preferred embodiment, the protrusion <NUM> extends past a plane defined by the first end <NUM>. The outside surface of the second end <NUM> comprises a circumferential series of angular ridges <NUM>. The angular ridges <NUM> of the second end <NUM> are oriented in an opposite direction to the angular ridges <NUM> of the top end <NUM>.

Referring to <FIG>, the housing <NUM> and insert <NUM> are coupled together by aligning the legs <NUM> of housing <NUM> with the second end <NUM> of the insert <NUM>. When the housing <NUM> is moved towards and over the insert <NUM>, the ramp surfaces <NUM> contact the flange <NUM> and cause the legs <NUM> to flex radially away from the axis <NUM>. Once the legs <NUM> extend radially away from the axis <NUM>, the housing <NUM> may be moved further over the insert <NUM> such that the apex area <NUM> passes over the flange <NUM>, allowing the legs <NUM> to at least partially return toward the axis <NUM>. The insert <NUM> is retained within the legs <NUM> of the housing <NUM>, between the inside surface of the top end <NUM> and the engagement surface <NUM>.

Because the distance between the first end <NUM> and the second end <NUM> of the insert <NUM> is less than the distance between the inside surface of the top end <NUM> and the engagement surface <NUM>, the insert <NUM> can move a distance between the inside surface of the top end <NUM> and the engagement surface <NUM>.

When the top end <NUM> of the housing <NUM> is moved toward the second end <NUM> of the insert <NUM>, the angular ridges <NUM> of the housing <NUM> engage with the angular ridges <NUM> of the insert <NUM> thereby allowing the housing <NUM> and insert <NUM> to rotate together in a first direction. When the housing <NUM> is moved away from the second end <NUM>, or the rotated in a second, opposite direction, the angular ridges <NUM> of the housing <NUM> disengage from the angular ridges <NUM> of the insert <NUM>. In some embodiments, the tamper-resistant cap is coupled to a port <NUM> by first affixing the insert <NUM> to the port <NUM>. In a preferred embodiment, the insert <NUM> is coupled to the port <NUM> using the threads <NUM> such that the protrusion <NUM> extends into the port <NUM>. Next, the housing <NUM> is coupled to the insert <NUM>, whereby the combined housing <NUM> and insert <NUM> may engage to rotate in a first direction, but disengage when turned in a second, opposite, direction. In some embodiments, the housing <NUM> and insert <NUM> are first coupled together. Next, the threads <NUM> of the insert <NUM> are aligned with a port <NUM>. The housing <NUM> is then moved towards the insert <NUM> such that the angular ridges <NUM> and <NUM> engage each other and allow the housing <NUM> and insert <NUM> to be rotated in a first direction, thereby coupling the housing <NUM> and insert <NUM> to the port <NUM>.

The foregoing description is provided to enable a person skilled in the art to practice the various configurations described herein. While the subject technology has been particularly described with reference to the various figures and configurations, it should be understood that these are for illustration purposes only and should not be taken as limiting the scope of the subject technology.

There may be many other ways to implement the subject technology. Various functions and elements described herein may be partitioned differently from those shown without departing from the scope of the subject technology. Various modifications to these configurations will be readily apparent to those skilled in the art, and generic principles defined herein may be applied to other configurations. Thus, many changes and modifications may be made to the subject technology, by one having ordinary skill in the art, without departing from the scope of the subject technology.

Furthermore, to the extent that the term "include," "have," or the like is used in the description or the claims, such term is intended to be inclusive in a manner similar to the term "comprise" as "comprise" is interpreted when employed as a transitional word in a claim.

A reference to an element in the singular is not intended to mean "one and only one" unless specifically stated, but rather "one or more. " The term "some" refers to one or more. All structural and functional equivalents to the elements of the various configurations described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and intended to be encompassed by the subject technology. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the above description.

Claim 1:
A tamper-resistant cap for a medical adapter, the cap comprising:
a housing (<NUM>) having a closed top end (<NUM>), an opposing open bottom end (<NUM>), and a side wall (<NUM>) between the top end (<NUM>) and the bottom end (<NUM>), and disposed circumferentially about an axis (<NUM>) defined between the top end (<NUM>) and the bottom end (<NUM>); characterized by
a first leg and a second leg (<NUM>), each of the first and second legs (<NUM>) extending from the bottom end (<NUM>) of the housing (<NUM>) and spaced apart to form a first opening (<NUM>) and a second opening separate from the first opening (<NUM>), each of the first and second legs (<NUM>) configured to flex independently of the adjoining leg (<NUM>);
wherein each of the first and second legs (<NUM>) comprise a member (<NUM>) extending radially from an inner surface of each leg (<NUM>) of the first and second legs (<NUM>), the member (<NUM>) comprising a ramp surface (<NUM>), an engagement surface (<NUM>) extending transversely to the ramp surface (<NUM>), and an apex area (<NUM>) that transitions between the ramp surface (<NUM>) and the engagement surface (<NUM>); and
wherein the first and second legs (<NUM>) are spaced apart a first distance at the first opening (<NUM>), and a second distance at the second opening, the first distance being greater than the second distance such that when the tamper-resistant cap is coupled to a port on a first branch of a connector, a second branch of the connector extends through the first opening (<NUM>).