Patent Publication Number: US-2018043070-A1

Title: Breast milk collection system with bag attachment

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a non-provisional application of and claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 62/373,472, filed Aug. 11, 2016, which is incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     The benefits of nourishing newborn infants by breastfeeding have long been established. Nursing mothers today are increasingly busy and for various reasons often wish to express breast milk to store for future use. A woman typically expresses breast milk using an electric or manual pumping device in connection with a funnel or shield that is held tightly over the woman&#39;s breast. The pumping device creates intermittent suction or pressure levels inducing milk flow and directing the flow of milk through the shield and to a storage bag coupled to the pumping device. 
     In typical breast milk collection systems, a breastpump apparatus expresses milk into a bottle or other similar hard-sided, reusable receptacle. However, breast milk is most commonly stored in a flexible storage bag. In these instances, the mother uses the breastpump to fill a bottle with breast milk, removes the bottle from the breastpump, empties the bottle into the bag for freezing, and then washes the bottle for future use. To decrease the time and hassle with this typical breast collection method, it is desirable to remove the reusable receptacle from the method entirely and to, instead, express milk directly into a storage bag such that milk transfer and receptacle cleaning steps are eliminated. 
     As nursing mother&#39;s increasingly collect breast milk for future use, their milk stockpile increases in size resulting in a need to store many bags of collected breast milk. In many instances, the storage, use, and organization of the bags of collected breast milk is problematic given the need for freezer space and a desire to have infants consume the oldest stored breast milk first. These tasks are complicated by the very busy lives of nursing mother&#39;s having little or no time to devote to organization of the stored breast milk. 
     SUMMARY 
     A breast milk collection system includes a storage bag and at least one coupling member formed separately from the storage bag and defining a first side and a second side. The storage bag includes a storage chamber, a closure strip for selectively closing a top of the storage chamber, two bag flaps each extending from the closure strip away from the storage chamber, and two coupling components each coupled to a different one of the two bag flaps. Each of the two coupling components includes a plurality of hook protuberances extending from one of the two bag flaps toward the other one of the two bag flaps. The first side of the at least one coupling member includes a plurality protuberances extending therefrom, and the second side of the at least one coupling member is at least partially covered with adhesive for selective application of the at least one coupling member to a breastpump apparatus. At least one of the two coupling components selectively couples with the at least one coupling member via interaction between the plurality of hook protuberances of the at least one of the two coupling components and the plurality of protuberances of the at least one coupling member when of the at least one of the two coupling components and the at least one coupling member are pushed together. Other breast milk collection systems, bags, adapters, storage bags, assemblies, and associated methods are also described herein. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments of the invention will be described with respect to the figures, in which like reference numerals denote like elements, and in which: 
         FIG. 1  is a front perspective view illustration of a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 2  is a front perspective view illustration of the breast milk collection system of  FIG. 1  preparing for use, according to one embodiment of the present invention. 
         FIG. 3  is a front, perspective view illustration of the breast milk collection system of  FIG. 1  during use, according to one embodiment of the present invention. 
         FIG. 4  is a top perspective view illustration of a portion of an inclined open bag from the breast milk collection system of  FIG. 1  with detail, according to one embodiment of the present invention. 
         FIG. 5  is a top perspective view illustration of a storage bag, according to one embodiment of the present invention. 
         FIGS. 6A-6D  each illustrate cross-sectional views of hook protuberances of differing shapes, according to different embodiments of the present invention. 
         FIG. 7  is a top perspective view an adhesive backed coupling member of the breast milk collection system of  FIG. 1 , according to one embodiment of the present invention. 
         FIG. 8  is a bottom perspective view the adhesive backed coupling member of  FIG. 7 , according to one embodiment of the present invention. 
         FIG. 9  is a cross-sectional view illustration and associated detail of the breast milk collection system and breastpump apparatus taken about line X-X in  FIG. 3 , according to one embodiment of the present invention. 
         FIG. 10  is a front perspective view of a breast milk collection bag, according to one embodiment of the invention. 
         FIG. 11  is a front perspective view illustration of a breast milk collection system including the breast milk collection bag of  FIG. 10 , according to one embodiment of the present invention. 
         FIG. 12  is a front perspective view illustration of a storage container, according to one embodiment of the present invention. 
         FIG. 13  is a front perspective view illustration of the storage container of  FIG. 10  being used for breast milk storage, according to one embodiment of the present invention. 
         FIG. 14  is a front perspective view illustration of an adapter for use in a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 15  is a front perspective view illustration of a breast milk collection system incorporating the adapter of  FIG. 14 , according to one embodiment of the present invention. 
         FIG. 16  is a front perspective view illustration of an adapter for use in a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 17  is a front perspective view illustration of a breast milk collection system incorporating the adapter of  FIG. 16 , according to one embodiment of the present invention. 
         FIG. 18  is an exploded, front perspective view illustration of a breast milk collection system including an adapter, according to one embodiment of the present invention. 
         FIG. 19  is a front view of a bag for use with a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 20  is a front view of the bag of  FIG. 19  during storage, according to one embodiment of the present invention. 
         FIG. 21  is a front view of a bag for use with a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 22  is a front perspective view of a bag for use with a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 23  is a front perspective view of the bag of  FIG. 22  during use as part of a breast milk collection system, according to one embodiment of the present invention. 
         FIG. 24  is a front perspective view of the bag of  FIG. 22  during use after storage of breast milk therein, according to one embodiment of the present invention. 
         FIG. 25  is a front perspective view of the bag of  FIG. 22  during use after storage of breast milk therein, according to one embodiment of the present invention. 
         FIG. 26  is a front perspective view of a bag for use with a breast milk collection system, according to one embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     The following detailed description of the invention provides example embodiments and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background of the invention or the following detailed description of the invention. Relational terms herein such a first, second, top, bottom, etc. may be used herein solely to distinguish one entity or action from another without necessarily requiring or implying an actual such relationship or order. In addition, as used herein, the terms “about” or “substantially” apply to all numeric values or descriptive terms, respectively, and generally indicate a range of numbers or characteristics that one of skill in the art would consider equivalent to the recited values or terms, that is, having the same function or results. 
     This innovation provides breast milk collection system for use with a variety of breastpump apparatuses permitting milk to be expressed through via the breastpump and into a storage bag rather than a bottle or other typical re-usable container. In particular, in one embodiment of the innovation, the breast milk collection system includes a storage bag and at least one coupling member formed separately from the receptacle. The storage bag includes an integrated coupling component near an opening thereof that is configured to be selectively secured to the at least one coupling member upon the application of pressure thereto. In one embodiment, each of the coupling members includes an adhesive back or other readily couplable surface for ready attachment to a breastpump apparatus. In one example, the at least one coupling member and storage bag can be applied to any breastpump apparatus, whether manual, electric, a manual-electric hybrid, etc., effectively retrofitting the breastpump apparatus to facilitate expression of breast milk directly into a storage bag, rather than into a bottle or other container and then transferred into a storage bag. In one example, storage bag is selectively coupled to breastpump apparatus on at least two opposing and spaced apart locations of the storage bag to hold the storage bag in an open position for receiving breast milk. The storage bag includes an integrated seal to close the storage chamber in a liquid tight manner suitable for storage at room temperature, refrigerated temperatures, and below freezing temperatures. 
     Turning to the Figures,  FIG. 1  illustrates a breast milk collection system  10 , according to one embodiment of the invention, including a storage bag  12 , or other storage receptacle, and at least one coupling member  14  formed separately from the storage bag  12 . The storage bag  12  includes at least one coupling component  16  readily and selectively securable to the at least one coupling member  14  in a manner capable of hanging storage bag  12  from the at least one coupling member  14  even when the when storage bag  12  is partially or completely filled with breast milk  18  (see, e.g.,  FIG. 3  and  FIG. 14 ). Additionally referring to  FIGS. 2 and 3 , coupling member  14  is additionally configured for ready attachment to a breastpump apparatus  20  such that storage bag  12  is able to hang from breastpump apparatus  20  via coupling member  14 . Breastpump apparatus  20  (see, e.g.,  FIGS. 2 and 3 ) is used to at least partially fill storage bag  12  while storage bag  12  hangs therefrom. Once filled to a desired level, storage bag  12  is pulled away from the coupling member  14 , sealed, and stored for future use. 
     More specifically, in one embodiment, storage bag  12  is primarily formed of a flexible material configured for safe consumable product storage at range of temperatures for various storage options. In one example, storage bag  12  is substantially transparent while, in another embodiment, is entirely or at least partially opaque. Storage bag  12  includes a front wall  22 , a rear wall  24 , and a gusset or bottom wall  26 , according to one embodiment of the present invention, and is configured to have a rectangular and substantially planar overall shape when folded into a closed position prior to use. Front wall  22  defines an interior surface  28  (see, e.g.,  FIG. 4 ) and an exterior surface  30  opposite interior surface  28 . Similarly, rear wall  24  defines an interior surface  32  and an exterior surface  34  (see, e.g.,  FIG. 4 ) opposite interior surface  32 . Interior surface  28  of front wall  22  is aligned with and placed atop interior surface  32  of rear wall  24  and opposing side seams  36  are formed along opposing sides thereof to secure front wall  22  with rear wall  24 . In one example, side seams  36  are integrally formed where front wall  22  and rear wall  24  are formed of a single piece of substrate and no additional heat or other seal is applied thereto. In another example, side seams  36  are additionally or alternatively formed as heat, chemical, or other suitable watertight seals. 
     Bottom wall  26  is formed integrally with and/or coupled to, via a watertight seal, bottoms of each of front wall  22  and bottom wall  26  opposite top opening  44 . Bottom wall  26 , in one example, is formed as an oval or a vesica piscis, in other words, a football shape, allowing storage bag  12  to make use of initially planar, but flexible, front wall  22  and rear wall  24  and linear side seams  36 , while still defining a storage chamber  38  therein. When storage bag  12  is folded for storage prior to filling, bottom wall  26  is folded up between front wall  22  and rear wall  24 , as will be apparent to those of skill in the art. In one example, when storage bag  12  is folded and empty, each of front wall  22  and rear wall  24  lay substantially flat and planar with bottom wall  26  folded in between. When storage bag  12  is opened, while front wall  22  and rear wall  24  remain joined to each other along opposing side seams  36 , front wall  22  and rear wall  24  bow outwardly relative to each other, due to the shape of bottom wall  26 , forming storage chamber  38  therebetween adjacent to each of interior surfaces  28  and  32 . 
     In one example, front wall  22 , rear wall  24 , and bottom wall  26  are each formed of a plastic material, such as polyethylene film or other suitable material, formed of single or multiple layers thereof. The plastic material is at least one of BPA-free, Consumer Product Safety Commission (CPSC) standard compliant, pre-sterilized, phthalate free, configured to reduce oxygen transmission therethrough, configured to be resistant to ultra-violet (UV) ray transmission, and polyvinyl chloride (PVC) free, in one embodiment. In one example, the plastic material forming storage bag  12  is BPA-free, CPSC standard compliant, pre-sterilized, phthalate free, configured to reduce oxygen transmission from storage bag  12 , configured to be resistant to UV ray transmission, and PVC free. The plastic material is one of clear, translucent, and/or opaque. 
     Each of front wall  22  and rear wall  24  define a top edge  40  and  42 , respectively, opposite bottom wall  26 , such that top edges  40  and  42  collectively define a top opening  44  to storage bag  12 . Each of front wall  22  and rear wall  24  also define at least one closure strip element  46  and  48 , respectively, near to, but spaced downwardly, that is, positioned away from the corresponding one of top edges  40  and  42 , respectively, toward bottom wall  26 . In one embodiment, closure strip elements  46  and  48  are each of a different one of an elongated male and an elongated female or other corresponding type closure strip elements  46  and  48  formed in interior surfaces  28  and  32  to face the other of interior surfaces  28  and  32 . Closure strip elements  46  and  48  are configured to selectively mate with each other forming a closure strip  50 , which selectively couples and uncouples top edges  40  and  42  of storage bag  12  with one another. 
     In one example, front wall  22  includes two closure strip elements  46  in linear form, one above, that is, nearer top opening  44 , than the other, and rear wall  24  includes two corresponding closure strip elements  48  in linear form, one above, that is, nearer top opening  44  to collectively form a double seal or double closure strip  50  for an even more secure closure of top opening  44  than a single closure strip  50 . Each closure strip element  46  is positioned a distance away from bottom wall  26  substantially equal to a corresponding closure strip element  48 , such that even when closure strip elements  46  are coupled to corresponding closure strip elements  48 , storage bag  12  lays substantially flat. Closure strip  50  is any suitable closure means having a selectively water tight seal and, in one example, is a zip-top, slider bar, hook-and hook, hook and loop or other suitable press-and-seal coupling strip, as will be apparent to those of skill in the art. 
     In one example, each closure strip element  46  and  48  includes a pair, plurality, or series of corresponding projections or depressions, generally indicated in  FIG. 1  at  52 , disposed adjacent to one another configured to engage with the corresponding projections or depressions  52  of the other one of closure strip element  46  and  48  when closure strip elements  46  and  48  are pressed together to securely close top opening  44  from one of opposing side seams  36  to the other one of opposing side seams  36 . Projections or depressions  52  of one closure strip element  46  have shapes that facilitate the engagement of closure strip  50  when closure strip elements  46  and  48  are pressed toward each other and disengagement of closure strip  50  when closure strip elements  46  and  48  are peeled away from each other, as will be apparent to one of skill in the art upon reading this application. In one example, each of the projections or depressions  52  are linear in overall shape forming a single or plurality of zip-top closure lines, e.g., two zip-top closure lines. The one or more closure strips  50  securely hold any breast milk or other suitable liquid in storage bag  12  for storage, e.g., at room temperature, at higher ambient temperature, at refrigerated temperatures, and/or at freezing temperatures. 
     In one embodiment, each of front wall  22  and rear wall  24  of storage bag  12  defines a flap  60  or  62 , respectively, each extending from closure strip  50  to a respective one of top edge  40  and  42 , respectively. Each flap  60  and  62  may extends freely from closure strip and/or each flap  60  and  62  may include at least a portion joined to the other one of flaps  60  and  62  along side seams  36 . In one example, each flap  60  and  62  is configured to facilitate expression of breast milk into storage chamber  38  and/or removal of breast milk from storage chamber  38 , as will be further described below. In one embodiment, flaps  60  and  62  also are used to maintain information about any breast milk contained therein, as will be further described below. Flaps  60  and  62 , in one example, each define a perforation line  64  just above, that is nearer a corresponding top edge  40  or  42  of storage bag  12 . Perforation lines  64  facilitate ready removal of flaps  60  and  62 , if desired, such that flaps  60  and  62 , and any coupling components  16  located on flaps  60  and/or  62  do not impede pouring of milk out of storage bag  12 . 
     Each coupling component  16  of storage bag  12  is secured to and/or integrally formed with one of front wall  22  and rear wall  24 , for example to flaps  60  and  62  of front wall  22  and/or rear wall  24 . As primarily illustrated in the figures, in one embodiment, each coupling component  16  extends across less than half, and in one example, less than a quarter, of an outside width of storage bag  12  measured between side seams  36 . However, in one embodiment, coupling component  16 A extends across a substantial entirety of the outside width of storage bag  12  as illustrated, for example, in  FIG. 5 . It should be understood that unless specifically described otherwise herein, descriptions of coupling component  16  hold true for other coupling component, such as coupling component  16 A, other than the dimension of each coupling component  16  or  16 A relative to the outside width of storage bag  12 . 
     In one example, coupling component  16  is configured to selectively couple storage bag  12  with breastpump apparatus  20  (see, e.g.,  FIG. 2 ) via engagement with the at least one coupling member  14 . Each coupling component  16  is formed on a corresponding flap  60  of front wall  22  or rear wall  24  between and spaced from each of the one or more coupling strips  50  and top edge  40  or  42  of the corresponding one of front wall  22  and rear wall  24 . While each coupling component  16  may have a width extending from one of opposing side seams  36  to the other, in one example, each coupling component  16  has a width that is smaller than a width of storage bag  12  and is substantially centered between and spaced from each of opposing side seams  36 , as illustrated, for example, in  FIG. 1 . 
     Additionally referring to  FIG. 4 , in one embodiment, each of coupling components  16  is a suitable press-and-seal closure portion formed along interior surface  28  of front wall  22  or interior surface  32  of rear wall  24  to face the other of interior surface  28  and interior surface  32 . More specifically, in one example, coupling components  16  are each a part of a two-part hook type, pressable fastener, such as a hook-and-loop or hook-and-hook fastener. In one embodiment, coupling components  16  are hook-and-hook fastening components formed, at least in part, by being integrally molded into, blown film formed, extruded, heat sealed to, and/or otherwise suitably formed integrally with or coupled to front wall  22  and rear wall  24 . In one example, one of coupling components  16  and one of coupling members  14  collectively form a fastener, such as a Press-Lok® 731 fastener, as offered by Velcro Companies, having offices in Manchester, N.H., an equivalent, or variation thereof; however, use of other suitable fasteners is also contemplated. Two-part hook type, pressable fasteners provide for easy fastening between two coupling components  16  or one of coupling component  16  and one of coupling members  14  (e.g.,  FIGS. 1-3 ) without the use of tools resulting in a coupling that is both secure and easily unfastened when desired by a consumer. 
     The detail portion of  FIG. 4  and  FIG. 6A  more closely illustrate the structure of one example of a hook type fastener, more specifically of a hook-and-hook type fastener, including a plurality of hook protuberances  70  extending from a base surface  72 , for example, where base surface  72  is one of interior surface  28  of front wall  22  or interior surface  32  of rear wall  24 , to a free end  74  opposite base surface  72 . The plurality of hook protuberances  70  generally extend from base surface  72  in an array of columns and rows, while, in other embodiments, the plurality of hook protuberances  70  is less regular and/or linear. In one example, each of the plurality of hook protuberances  70  is integrally formed with front wall  22  and/or rear wall  24  of storage bag  12 . In one embodiment, the plurality of hook protuberances  70  are formed of polypropylene and/or polyethylene and are molded into storage bag  12 . 
     Each of the plurality of hook protuberances  70  is substantially identical, in one example, defining a stem or shaft  76  topped with a bulbous head  78 , having a greater overall diameter than shaft  76 . In this manner, undersides of bulbous head  78 , surrounding an end of shaft  76  opposite base surface  72 , define rails  80  for interacting with similar rails  80  on other corresponding coupling components  16  or coupling members  14 , as will be further described below. Each shaft  76  is elongated and flexible in a manner allowing the plurality of hook protuberances  70  to flex under pressure to couple with or uncouple from coupling member  14 . In other embodiments, the plurality of hook protuberances  70  includes hook protuberances  70  of various shapes and/or profiles. 
     While  FIG. 4  illustrates one profile or shape of the plurality of hook protuberances  70 , many other suitable shapes are contemplated. For instance,  FIG. 6B  illustrates a cross-sectional view of a hook protuberance  70 B defining a stem or shaft  76 B topped with a hooked head  78 B, having a greater overall width than a diameter of shaft  76 B. In this manner, undersides of hooked head  78 B, surrounding an end  82 B of shaft  76 B opposite base surface  72 , define rails  80 B for interacting with similar rails on other corresponding coupling component or members. More specifically, in one example, hooked head  78 B includes two tubular hooks  84 B each extending away and downwardly from end  82 B of shaft  76 B in a different radial direction. 
       FIG. 6C  illustrates a cross-sectional view of a hook protuberance  70 C defining a stem or shaft  76 C topped with a hooked head  78 C, having a greater overall width than a diameter of shaft  76 C. In this manner, undersides of hooked head  78 C, surrounding an end  82 C of shaft  76 C opposite base surface  72 , define rails  80 C for interacting with similar rails on other corresponding coupling component or members. More specifically, in one example, hooked head  78 C includes two, somewhat flattened tubular hooks  84 C each extending away and downwardly from end  82 C of shaft  76 C in a different radial direction to collectively define a rounded top surface thereof. 
       FIG. 6D  illustrates a cross-sectional view of a hook protuberance  70 D defining a stem or shaft  76 D topped with a hooked head  78 D, having a greater overall width than a diameter of shaft  76 D. In one example, shaft  76 D extends from base surface  72  with a slight curvature. Hooked head  78 D define a hook as a continued curvature of shaft  76   d  such that shaft  76 D and hooked head  78 D collectively define a C-shaped cross section, in one example. An underside of hooked head  78 D extending from an end  82 C of shaft  76 C opposite base surface  72  defines a rail  80 D for interacting with similar rails on other corresponding coupling component or members. 
     One example of coupling member  14  is shown in additional detail in the top and bottom perspective views of  FIGS. 7 and 8 . As illustrated, coupling member  14  includes a base substrate  90  and a plurality of hook protuberances  92  extending away from base substrate  90 . Base substrate  90  is formed as a substantially planar, yet flexible piece of material defining a first primary side  94  and a second primary side  96  facing in a direction opposite that of first primary side  94 . Base substrate  90  is suitably sized to extend along a limited portion of breastpump apparatus  20  as illustrated where two or more coupling members  14  are used. In one example, where only one coupling member  14  is used, it is sized with a length sufficient to extend around at least about 180 degrees of an outer perimeter of a lower portion of breastpump apparatus  20 , as will be further described below. 
     Hook protuberances  92  each are coupled to base substrate  90  and extend away from base substrate  90  in suitable shape, for example, with any of the shapes described above with respect to hook protuberances  70 ,  70 B,  70 C, and  70 D. In one embodiment, the plurality of hook protuberances  92  are each sized and/or shaped substantially identical to the plurality of hook protuberances  70 ,  70 B,  70 C, and  70 D that are included in coupling component  16 . 
     In one example, the plurality of hook protuberances  92  are arranged relative to base substrate  90  as an array in a series of columns and rows, while, in another example, the plurality of hook protuberances  92  are more randomly positioned and/or are positioned in locations offset from one another. In one example, the plurality of hook protuberances  92  are arranged and spaced from one another in an arrangement substantially identical to or otherwise complimentary to the arrangement of the plurality of hook protuberances  70  on storage bag  12 , as will be further described below. 
     In one example, second primary surface  96  is at least partially covered with an adhesive  98  and a readily removable liner  100  is selectively placed over adhesive  98  until coupling member  14  is ready for use. Adhesive  98  is any suitable fastening agent configured to securely hold coupling member  14  to breastpump apparatus  20  (see, e.g.,  FIGS. 2 and 3 ) and, in one example, is a pressure sensitive adhesive of sufficient strength to prevent or at least greatly decrease inadvertent removal or peel back of an adhered coupling member  14  from the corresponding breastpump apparatus  20 . 
     Referring once again to  FIG. 2 , breastpump apparatus  20  includes a breast shield  110 , a housing  112 , an outlet valve  114 , and a pump connection line  116  coupled with a pump (not shown) of breastpump apparatus  20  configured to introduce intermittent suction to the apparatus and a woman&#39;s breast causing milk to be expressed therefrom. Breast shield  110  includes a funnel-shaped cup  120 , in one embodiment, and is configured to fit adjacent with and engage at least a portion of a woman&#39;s breast (not shown). Breast shield  110  further includes an open channel  122  extending from an interior of funnel-shaped cup  120  for directing milk expressed from the breast to housing  112 . Breast shield  110  is selectively coupled to housing  112  such that channel  122  is in open communication with a conduit system (not shown) formed within housing  112  and configured to direct milk expressed from the breast, through the conduit system, and to outlet valve  114 . Outlet valve  114  is configured to open and close to allow suction to be created within housing  112  and breast shield  110  and to allow breast milk  18  (see  FIG. 3 ) to be released for collection and storage. 
     In one example, housing  112  defines a coupling sleeve  124  just above and extending around outlet valve  114 . Coupling sleeve  124  is generally internally threaded and/or otherwise formed to receive a top of a bottle or other container (not shown) having a correspondingly threaded neck (not shown), as will be apparent to those of skill in the art. In other embodiments, coupling sleeve  124  is not internally threaded. Coupling sleeve  124  generally has an outer surface  126 , which is not used in coupling typical bottles or other containers to breastpump apparatus  20 , and typically has a cylindrical or other suitably shape. 
     During use of breast milk collection system  10  each of the at least one coupling member  14  is secured to outer cylindrical surface  126  of coupling sleeve  124 , for example, as illustrated with continued reference to  FIG. 2 . For example, coupling member  14  is sized to have a height less than an outer cylindrical surface  126  of a large number of brands and models of breastpump apparatus  20 . During use, liner  100  of coupling member  14  is removed, and each coupling member  14  is adhered to outer cylindrical surface  126  such that a length of coupling member  14  extends along a portion of an outer perimeter of outer cylindrical surface  126 . In one example, more than one coupling member  14  is applied to outer cylindrical surface  126 , such as two coupling members  14 , for instance, being coupled to outer cylindrical surface  126  on opposing sides thereof as shown in the cross-sectional view of  FIG. 9 . 
     Once coupling members  14  are applied to breastpump apparatus  20 , breastpump apparatus  20  is configured for use with one of storage bags  12 . For use, storage bag  12  is opened, separating flap  60  and flap  62  from one another. Top opening  44  of storage bag  12  is generally aligned with coupling sleeve  124 . Storage bag  12  and breastpump apparatus  20  are moved relative to each other placing coupling component  16  formed by front wall  22  into vertical and horizontal alignment with one of coupling members  14 , which is secured to coupling sleeve  124  of breastpump apparatus  20 . Pressing on flap  60  over coupling component  16  and toward coupling sleeve  124  of breastpump apparatus  20  flexes the plurality of hook protuberances  70  and/or  92  until some of rails  80  formed by the plurality of hook protuberances  70  are pushed past heads  78  of the plurality of hook protuberances  92  and vice versa such that rails  80  of the plurality of hook protuberance  70  are placed to be adjacent rails  80  of hook protuberances  92 , as illustrated in the detail portion of  FIG. 9 . 
     Similarly coupling component  16  formed by rear wall  24  of storage bag is placed into vertical and horizontal alignment with an opposite one of coupling members  14 , which is also secured to coupling sleeve  124  of breastpump apparatus  20 . Pressure is applied to coupling component  16  toward coupling sleeve  124  flexing the plurality of hook protuberances  70  and/or  92  of the corresponding coupling member  14  and coupling component  16  until some of rails  80  formed by the plurality of hook protuberances  70  are pushed past heads  78  of the plurality of hook protuberances  92  and vice versa such that rails  80  of the plurality of hook protuberance  70  are placed to be adjacent rails  80  of hook protuberances  92 , as illustrated in the detail portion of  FIG. 9 . 
     The interaction between rails  80  of the plurality of hook protuberances  70  and the plurality of hook protuberances  92  repeated for the relatively larger numbers of hook protuberances  70  and  92  on each of the two corresponding coupling components  16  and one or more coupling members  14  effectively maintains each coupling member  14  secured to the corresponding coupling component  16  of storage bag  12  with at least a sufficient bond to collectively maintain a storage bag  12  suspended from coupling sleeve  124  of breastpump apparatus  20  even when storage bag  12  is filled with breast milk  18  ( FIG. 2 ). Conversely, the flexible shafts  76  of hook protuberances  70  and  92  allow for interaction between rails  80  of coupling components  16  and coupling members  14  to be overcome when coupling component  16  of storage bag  12  is pulled away from the corresponding coupling member  14  allowing storage bag  12  to be separated from breastpump apparatus  20 . 
     When storage bag  12  is so coupled with breastpump apparatus  20 , in one embodiment generally illustrated, for example, in  FIG. 3 , breastpump apparatus  20  remains largely above or just below closure strips  50 . By maintaining breastpump apparatus  20  in a relatively high position in storage bag  12  rather than largely within storage chamber  38  below closure strips  50 , it decreases the likelihood that a consumer will overfill the bags in a manner that could result in breast milk  18  entering the tubing and other functional components of breastpump apparatus  20 , which can be detrimental to the functionality and lifespan of breastpump apparatus  20 . While storage bag  12  hangs from breastpump apparatus  20 , a consumer places breast shield  110  over her breast and activates the breastpump apparatus  20 , causing breast milk  18  to be expressed, via breastpump apparatus  20 , directly into storage bag  12 . In one embodiment, a consumer may express from more than one breast at the same time using a second breast shield  110 , housing  112 , storage bag  18  assembly. The consumer continues to express breast milk  18  into storage bag  12  until storage bag  12  is filled to a desired level taking care not to fill storage bag  12  over capacity and/or to otherwise allow breast milk  18  in storage bag  12  to infiltrate the tubing and other internal components 
     Once storage bag  12  is filled to a desired or end level, the consumer peels the flaps  60  and  62  away from coupling sleeve  124  separating protuberances  70  of coupling component  16  from protuberances  92  of coupling member  14 . Once coupling components  16  are separated from coupling components  14 , storage bag  12  is moved away from breastpump apparatus  20 . The filled storage bag  12  is sealed using coupling strips  50 , safely securing breast milk  18  therein for storage and/or future use. Clean up is limited to cleaning components of breastpump apparatus  20  as there is no intermediary storage container other than the end bag or other storage bag  12 , which can be placed in the refrigerator for short term and/or freezer for long term storage of the breast milk  18  contained therein. As such, some of the time-consuming chores or hassle associated with expressing and storing breast milk  18  is eliminated. In one embodiment, flaps  60  are substantially removed from storage bag  12  by tearing storage bag  12  along perforation lines  64  prior to pouring breast milk  18  out of storage bag  12 . In this manner, breast milk  18  is more easily poured into a bottle or other container without impedance from coupling components  16  on flaps  60  and  62 . 
       FIG. 10  illustrates one embodiment of a storage bag  1012  being substantially identical to any embodiment of storage bag  12  described above, other than the specific differentiated features recited herein. Storage bag  1012  includes coupling components  1016 , which are substantially identical to coupling components  16 . For example, coupling components  1016  are each a part of a two-part hook type, pressable fastener, such as a hook-and-loop or hook-and-hook fastener. In one embodiment, coupling components  1016  are hook-and-hook fastening components formed, at least in part, by being integrally molded into, blown film formed, extruded, heat sealed to, and/or otherwise suitably formed integrally with or coupled to front wall  22  and rear wall  24  of storage bag  1012 . In one example, one of coupling components  1016  and one of coupling members  14  collectively form a fastener, such as a Press-Lok® 731 fastener, as offered by Velcro Companies, having offices in Manchester, N.H., an equivalent, or variation thereof; however, use of other suitable fasteners is also contemplated. Two-part hook type, pressable fasteners provide for easy fastening between two coupling components  1016  or one of coupling component  1016  and one of coupling members  14  (e.g.,  FIGS. 1-3 ) without the use of tools resulting in a coupling that is both secure and easily unfastened when desired by a consumer. 
     Unlike storage bag  12 , in one embodiment, storage bag  1012  includes coupling components  1016  in a different placement than coupling components  16 . More specifically, coupling components  1016  are coupled to, e.g., attached to or formed integrally with, exterior surface  30  of front wall  22  and exterior surface  34  of rear wall  24 , such that coupling components  1016  initially face away from each other. In one example, placement of coupling components  1016  on exterior surfaces  30  and  34  of storage bag  1012  eases manufacturing of storage bag  1012 . In one embodiment, storage bag  1012  defines a fold line  1060 , which may be pre-defined and/or defined upon folding storage bag  1012  for use, that extends substantially parallel to closure strip elements  46  and  48  across each of front wall  22  and rear wall  24  between coupling component  1016  and top ones of closure strip elements  46  and  48 . 
     Referring to  FIG. 11 , during use of storage bag  1012 , each of front wall  22  and rear wall  24  is folded about its respective fold line  1060  transitioning closure components  1016  from facing away from each other to face toward one another. Once positioned to face inwardly, each closure component  1016  is coupled to a corresponding closure member  14  of breastpump apparatus  20  in a similar manner as described with respect to closure components  16  above. Once storage bag  1012  is coupled to breastpump apparatus  20 , breastpump apparatus  20  is used to express milk from a woman&#39;s breast directly into storage bag  1012  in much the same way as described above for storage bag  12 . 
     Once storage bag  1012  is filled to a desired or otherwise resulting level, the consumer peels the flaps  60  and  62  away from coupling sleeve  124  separating protuberances  70  of coupling component  1016  from protuberances  92  of corresponding ones of coupling members  14 . Once coupling components  1016  are separated from coupling components  14 , storage bag  12  is moved away from breastpump apparatus  20  and front wall  22  and rear wall  24  are unfolded. Like filled storage bag  12 , the filled storage bag  1012  is sealed using coupling strips  50 , safely securing breast milk  18  therein for storage and/or future use. Clean up is limited to cleaning components of breastpump apparatus  20  as there is no intermediary storage container other than the end bag or other storage bag  1012 , which can be placed in the refrigerator for short term and/or freezer for long term storage of the breast milk  18  contained therein. As such, some of the time-consuming chores or hassle associated with expressing and storing breast milk  18  is eliminated. In one embodiment, flaps  60  are substantially removed from storage bag  1012  by tearing storage bag  1012  along perforation lines  64  prior to pouring breast milk  18  out of storage bag  1012 . In this manner, breast milk  18  is more easily poured into a bottle or other container without impedance from coupling components  1016  on flaps  60  and  62 . 
     To further facilitate breast milk storage, in one embodiment, storage bags  12  are sold in a box  150  or other container that also is configured to hold filled storage bags  12  in a freezer, as illustrated with reference to  FIGS. 11 and 12 . Box  150  includes a base portion or body  152  and a cover  154 , which, in one embodiment, are separately formed. Body  152  defines a front wall  156  and a series of sidewalls  158  forming a closed structure with a bottom wall (not shown) and a storage compartment  164  therein. In one embodiment, front wall  156  and sidewalls  158  are each substantially planar and define box  150  to have a width and length slightly larger than a width and length of storage bags  12 , which will be stacked and stored therein. In one example, body  152  is formed of a single piece of planar material folded into a use position defining storage compartment  164 . 
     In one example, front wall  156 , includes a door  160  formed as a single piece with a remainder of front wall  156 , defined by perforation lines  162 . Door  160  is formed in front wall  156  immediately adjacent the bottom wall of box  150  such that perforation lines  162  forms three sides of door  160  while the bottom wall of box  150  defines the forth side of door  160 . Door  160  has a width W, measured from side to side, that is greater than a width of frozen storage bag  12  such that storage bag  12  can be readily pulled from storage compartment  164  via door  160  as shown, for example, in  FIG. 12 . Perforation lines  162  are broken and door  160  is pushed into box  150  to define an opening to storage compartment  164 , for example, as is also shown in  FIG. 12 . 
     Box body  152  is formed of any suitable material such as paperboard, corrugated material (e.g., micro flute material), other paper-based product, plastic, etc. In one example, box body  152  is formed of a polycarbonate-coated Scround. Box body  152  may be sold to consumers is an erected configuration, e.g., with empty storage bags  12  therein, and/or in a flattened configuration that is readily erected without the need for tools and/or fastening members, as will be apparent to those of skill in the art upon reading this application. 
     Cover  154  is sized and shaped to cover storage compartment  164  opposite the bottom wall (not shown). In one example, cover  154  includes a front wall  166  and additional sidewalls  168  with a top wall  170  extending from and between each of front wall  166  and additional sidewalls  168 . While cover  154  is illustrated as being formed separately from body  152 , in one example, cover  154  may be formed as a single piece with body  152 , e.g., coupled with body  152  via a living hinge or fold line. In one example, cover  154  is formed of a single piece of planar material folded into a use position for covering body  152 . Front wall  166  and other sidewalls  168  collectively surround an outer perimeter of body  152 . 
     In one example, top wall  170  of cover  154  defines a top surface  172  that is substantially planar. The planarity of top surface  172  provides a surface for maintaining storage bag  12  filled with liquid-form breast milk  18  for freezing, since breast milk  18  maintained in a substantially flat manner in storage bag  12  during freezing will result in a flatter frozen shape that is easier to store, transport, etc. than a more bulky shape. In one example, top surface  172  of top wall  170  includes a graphical indication  174 , for instance, an outline of a storage bag shape and or other indications to inform a consumer that top surface  172  is configured to support storage bag  12  while breast milk  18  therein is frozen. 
     Box  150  is not only is used to hold a stack of empty storage bags  12  for sale, but also to hold filled storage bags  12  in a first-in-first-out arrangement. More specifically, referring primarily to  FIG. 13 , once storage bags  12  filled with breast milk  18  are frozen on top surface  172  or elsewhere, cover  154  is opened to allow the frozen storage bag  12  to be placed in storage compartment  164  on top of the bottom wall and any other filled storage bag  12  previously placed in box  150 . When a consumer wishes to use the contents of a storage bag  12 , within box  150 , the bottommost storage bag  12  is withdrawn from box  150  via door  160 , not via the top thereof. In this manner, the oldest filled storage bag  12  is removed from box  150  first, which is generally desirable to best maintain the freshness and nutrient value of the stored breast milk  18 . While box  150  can be sold with storage bags  12 , such as the packaging containing storage bags  12 , in one example, box alternatively and/or additionally is sold in a similar or larger size for use in storing separately purchased storage bags  12 . In one embodiment, box  150  is formed of a blank and is folded flat for in-store display configured to be easily erected by the end consumer without the use of tools. 
     Other solutions for converting typical breastpump apparatus to a direct pump to storage bag system are also contemplated. For example, referring to  FIGS. 14 and 15 , in one example, rather than securing, e.g., adhering, the at least one coupling member  14  directly to breastpump apparatus  20 , as described above, an adapter  180  is used. Adapter  180  includes a cuff  182  and a neck  184  coaxially positioned and extending upwardly from cuff  182 . More specifically, in one example, cuff  182 , which is annular and hollow, defines and extends between a bottom edge  186  and an opposing top edge  188 . Neck  184  extends from top edge  188  of cuff  182  to a top edge  190  of neck  184 . An open cavity  192  extends through adapter  180 , more specifically, from top edge  190  to bottom edge  186 . Neck  184  defines an outside surface  198  with threads  200  sized and shaped to rotatably couple with coupling sleeve  124  of breastpump apparatus  20 , for example, with coupling sleeve  124 , which would, in other systems, receive a bottle or other hard-sided storage container (not shown). 
     Cuff  182  has a larger outer diameter than neck  184  and defines an outside surface  196 . Adapter  180  includes two or more coupling members  202 , which are substantially identical to coupling member  14 , as described above, but may include a more permanent or other fastening agent than adhesive  98  ( FIG. 8 ) of coupling member  14 . Coupling member  202  is adhered to or otherwise coupled to outside surface  196  of adapter  180 , rather than directly to breastpump apparatus  20  as described with respect to coupling member  14 . In one example, at least two coupling members  202  are used, with one coupling member  202  being secured to each of opposing sides of cuff  182  to facilitate coupling of both flaps  60  and  62  of storage bag  12  to cuff  182 . In this manner, when a consumer wishes to pump directly into storage bag  12 , adapter  180  is used and coupling components  16  of storage bags  12  are selectively secured to coupling members  202 . When a consumer wishes to pump into a bottle or other container, adapter  180  is easily removed with no residual of coupling member  202  remaining on breastpump apparatus  20 . While coupling members  202  are shown of an example length in  FIGS. 14 and 15 , in other examples, one or more coupling member  202  may extend around part or an entirety of a perimeter of cuff  182 , as generally illustrated with broken lines  208 . Where only one coupling member  202  is used, coupling member  202  extends at least about 180 degrees around an outer perimeter of cuff  182 . 
       FIG. 16  illustrates one embodiment of an adapter  220 , which is an alternative to adapter  180 , includes a cuff  222  and a neck  224  coaxially positioned and extending upwardly from cuff  222 . More specifically, in one example, cuff  222  is shaped as a vesica piscis with arced side surfaces  234  and  236  converging at vertical edges  237 . Each of arced side surfaces  234  and  236  has a width, measured from one vertical edge  237  to the other, that is substantially equal to a width of one of front wall  22  and rear wall  24  (see  FIG. 1 ) or at least a width as measured along interior surfaces  28  or  32 , respectively, between side seams  36 . Cuff  222  is hollow and extends between a bottom edge  226  and an opposing top edge or shoulder  228  extending inwardly from tops of arced side surfaces  234  and  236 . 
     Neck  224  has a smaller width and length than cuff  222  and extends from shoulder  228  of cuff  222  to a top edge  230  of neck  224 . An open cavity  232  extends through adapter  220 , more specifically, from top edge  230  of neck  224  to bottom edge  226  of cuff  222 . Neck  224  defines an outside surface  238  with threads  240  sized and shaped to rotatably couple with coupling sleeve  124  of breastpump apparatus  20 , for example, with coupling sleeve  124 , which would, in other systems, receive a bottle or other hard-sided storage container (not shown). 
     Adapter  220  includes two or more coupling members  242 , which are substantially identical to coupling member  14 , as described above, but may include a more permanent adhesive (not shown) or other fastening agent than adhesive  98  ( FIG. 8 ) of coupling member  14 . Coupling members  242  are each secured to one of arced side surfaces  234  and  236  of adapter  180 , rather than directly to breastpump apparatus  20  as described with respect to coupling member  14 . In one example, at least two coupling members  242  are used with at least one coupling member  242  being secured to each of opposing arced side surfaces of cuff  182  to facilitate coupling of both flaps  60  and  62  of storage bag  12  (FIGS.  1 - 4 ) to cuff  222 . In one example, multiple coupling members  242  and/or longer coupling members  242  than illustrated are applied to each of arced side surfaces  234  and  236 . 
     In one example, one or more coupling members  242  extend around a substantially entirety or at least about 180 degrees of an outer perimeter of cuff  222  as generally indicated with dashed lines  248 . In this manner, when a consumer wishes to pump directly into storage bag  12 , adapter  220  is used, in a similar manner as described and illustrated for adapter  180 , and coupling components  16  of storage bags  12  are selectively secured to coupling members  242 . When a consumer wishes to pump into a bottle or other container, adapter  220  is easily removed with no residual of coupling member  202  remaining on breastpump apparatus  20 . 
       FIG. 17  illustrates breastpump apparatus  20  and storage bag  12  being used with one embodiment of an adapter  270 . Adapter  270  is formed substantially identically to adapter  220  except the at least one coupling member  242  is replaced with closure strip elements  260 . Each closure strip element  260  is similar to one of closure strip elements  46  and  48  of storage bag  12 . More specifically, in one example, closure strip elements  260  on first arced side surface  234  are substantially identical to closure strip elements  48  of rear wall  24  of storage bag  12 , and closure strip elements  260  on second arced side surface  236  are substantially similar to closure strip elements  46  of front wall  22  of storage bag  12 , where closure strip elements  46  and  48  are complimentary and couple with one another to securely close storage bag  12  in a liquid tight manner. 
     During use, storage bag  12  is aligned with adapter  250  and closure strip elements  46  of front wall  22  are zip sealed to closure strip elements  260  on first arced side surface  234 , and closure strip member  48  of rear wall  24  are zip sealed to closure strip elements  260  on second arced side surface  236 . In this embodiment, storage bag  12  is selectively sealed to adapter  250  around a substantial entirety of top opening  44  providing an even more spill proof environment for expression of breast milk  18 . In one example, coupling components  16  are eliminated from storage bag  12  when storage bag  12  is configured for use with adapter  250 . Once filled, storage bag  12  is removed from adapter  250  and closure strip elements  46  and  48  are secured to each other to close storage bag  12  in a liquid tight manner as will be apparent to those of skill in the art reading the present application. 
     Yet another adapter  270  is illustrated for use with breastpump apparatus  20  and storage bag  12  in  FIG. 18 . Adapter  270  is a two-piece system including an adapter sleeve  272  and an adapter base  274  configured to receive flaps  60  and  62  of storage bag  12  between them before adapter sleeve  272  is secured to breastpump apparatus  20 . Sleeve  272 , in one example, includes a cuff  276  and neck  278 , which is coaxially positioned relative to and extends upwardly from cuff  276 . More specifically, in one example, cuff  276 , which is annular and hollow, defines and extends between a bottom edge  280  and an opposing top edge or shoulder  282 . Shoulder  282  narrows to neck  278 , which extends from shoulder  282  of cuff  276  to a top edge  284  of neck  278 . An open cavity  286  extends through adapter  270 , more specifically, from top edge  284  to bottom edge  280 . Neck  278  defines an outside surface  288  with threads  290  sized and shaped to rotatably couple with breastpump apparatus  20 , for example, with coupling sleeve  124 , which would, in other systems, receive a bottle or other hard-sided storage container. Adapter sleeve  272  further defines at least one internal thread  294  extending around a portion of open cavity  286  corresponding with cuff  276 . 
     Adapter base  274  includes a cylinder  300  and an annular rim  302 . Cylinder  300  defines a top edge  306  and extends downwardly from top edge  306  to annular rim  302 . Cylinder  300  additionally defines an outside surface  210  with threads  312  extending therearound. Cylinder  300  and threads  312  are sized and shaped to rotably mate with adapter sleeve  272  via thread  294 . Annular rim  302  extends radially outward and downwardly from outside surface  210  and, in one embodiment, has a greater outside diameter than an outside diameter of cuff  276 . Adapter base  274  includes an open channel  308  extending therethrough, from top edge  306  to bottom edge  204 . 
     During use, flaps  60  and  62  are pulled through open channel  308  from below annular rim  302  to extend out of and fold around cylinder  300  as generally indicated by the enlarged arrows in  FIG. 18 . More specifically, flaps  60  and  62  fold over to cover threads  312 . Adapter sleeve  272  is placed over adapter base  274  and is rotated relative to adapter base  274  mating thread  312  of adapter base with thread  294  of adapter sleeve  272  even with flaps  60  and  62  being maintained between thread  312  and thread  294 . Adapter sleeve  272  is rotatably secured to cuff  276  of breastpump apparatus  20  for use and expression of breast milk  18  (see e.g.,  FIG. 3 ) from breastpump apparatus  20  into storage bag  12  through adapter  270 . Other adapters using concepts similar to those described above and permitting expression of milk from breastpump apparatus  20  into storage bag  12 , such as a bag, are al so contemplated. 
       FIGS. 19 and 20  illustrate storage bag  12  with additional features according to embodiments of the present invention. Any one or more of the additional features may be incorporated into each storage bag, or none of the additional features may be included on given storage bag  12 . In one example, front wall  22  includes measurement indicia  330  for facilitating a consumer in approximating how much breast milk  18  is maintained within storage bag  12 . As shown in  FIGS. 19 and 20 , the opaque breast milk  18  as viewed through the substantially transparent front wall  22  provides a top liquid line viewed relative to measurement indicia  330  to indicate a fill level for storage bag  12 . 
     Storage bag  12  may also include a writable field, such as an opaque field  332  providing spaces for consumer to write information about breast milk  18  stored therein. For example, opaque field  332  may provide spaces for consumer to record a date breast milk  18  was collected, a volume of breast milk  18  in the corresponding storage bag  12 , and a name of the baby or mother associated with breast milk  18  for identification and proper use of breast milk  18 . Other types of information may also be recorded to opaque field  332  as will be understood by those of skill in the art upon reading this application. 
     In one embodiment, storage bag  12  includes sensor field  340  for sensing time, temperature, freshness, or other variable of importance to maintaining breast milk  18  in a safe manner. As illustrated, sensor field  340  is elongated and is substantially planar, applied to exterior surface  30  of front wall  22  in a secure manner. Sensor field  340  may be provided to consumer previously coupled to storage bag  12 . In one embodiment, sensor field  340  is provide to consumer as a separate sticker or label that consumer applies to storage bag  12  for use. In one example, where sensor field  240  measures time, sensor field  340  is initially covered by peel strip  344 , which keeps sensor field  340  in a manner not directly exposed to an external environment. 
     When a consumer first places either a fresh supply of breast milk  18  or a frozen supply of breast milk on a counter or in a refrigerator, he or she peels away peel strip  344  exposing sensor field  340  therebelow to the surrounding environment, which activates sensor field  340 . Sensor field  340  is configured to change a visual display thereon as time passes. For instance, where breast milk  18  is determined to remain fresh in an unrefrigerated state for at least six hours, sensor field is configured to display a new bar or other suitable demarcation  346  as predetermined periods of time pass, that is, as sensor field  340  remains exposed to a surrounding environment, indicating to a consumer how long the breast milk  18  has been maintained in an unrefrigerated manner. For example, a new demarcation  346  appears in sensor field  340  every half hour or every hour that sensor field  340  is exposed to the surrounding environment. In one embodiment, the colors of each additional demarcation  346  increases in intensity as the demarcation nears an indication that breast milk  18  in storage bag  12  has been exposed to its surroundings for an undesirably long length of time. This indication of time gives a consumer peace of mind, helping consumer to keep track of how long breast milk has been kept in certain conditions. In another embodiment, demarcations  346  may appear every 12 hours that sensor field  340  is exposed to refrigerated embodiment, allowing a consumer to track refrigerated time for breast milk  18 . In yet another embodiment, sensor field  340  may include a temperature component such that demarcations  346  appear faster at room temperature than at cooler, e.g., refrigerated, temperatures for even broader use. Other periods of time inducing a new demarcation  346  are also contemplated. 
     Other variations of storage bag  12  are also contemplated. For example, storage bags  12  may be available in a number of storage capacities, such as the six-ounce capacity of storage bag  12  and/or the three-ounce capacity of storage bag  352 , illustrated in  FIG. 21 , which other than storage capacity an size, is substantially identical to storage bag  12 . 
       FIG. 22  illustrates yet another storage bag  412  for use with breast milk collection system  10  (see  FIG. 1 ). Storage bag  412  includes a coupling component  416 , a front wall  422 , a rear wall  424 , opposing side seams  426 , closure strips  430 , flaps  460  and  462 , perforation line  464 , and a top opening  482  that are substantially identical to coupling component  16 , front wall  22 , rear wall  424 , side seams  36 , closure strips  50 , flaps  60  and  62 , perforation line  64 , and top opening  44  of storage bag  12  (see, e.g.,  FIG. 1 ), except where specifically described otherwise below. Storage bag  412  defines a storage chamber  428  similar to storage chamber  38 ; however, storage chamber  428  of storage bag  412  is divided into smaller individual chambers  476  each having a substantially equal capacity for forming a number of substantially identically sized, small breast milk cubes  480  within a single storage bag  412 . In one example, each individual chamber  476  has a storage capacity of one ounce or more. In one embodiment, storage bag  412  may form individual chambers  476  of different capacities, such as a one individual chamber  476  having a one ounce capacity while another individual chamber has a capacity of two ounces. 
     For example, storage apparatus  412  includes releasable interior seals  470 , including one or both of horizontal seals  472  and vertical seals  474 , in one embodiment. Each interior seal  470  is formed between front wall  422  and rear wall  424  holding front wall  422  and rear wall  424  together in a liquid tight manner at interior seal  470 . In  FIG. 22 , interior seals  470  are generally arrange in a grid like manner, with vertical seals  474  each being substantially linear, linearly aligned with the other vertical seals  474 , and being separated from adjacent ones of vertical seals  474  by a seal gap  478 . Horizontal seals  472  are substantially linear and extend in linearly aligned pairs that are vertically spaced from other pairs of horizontal seals  472 . Each horizontal seal  472  is spaced from the other horizontal seal  472  in the pair by a seal gap  478 . Other arrangements of interior seals  470  and seal gaps  478  are contemplated, so long as the location and size of seal gaps  478  allows breast milk  18  to flow from a top opening of storage bag  412  down into each individual chamber  476  of storage bag  412  via gravity, filling each individual chamber  476 . 
     For example, as shown in  FIG. 23 , in one example, breastpump apparatus  20  is secured to storage bag  412  via coupling component  416 , and breastpump apparatus  20  releases breast milk  18  into storage chamber  428 . Due to gravity, breast milk  18  travels through seal gaps  478  moving downwardly from breastpump apparatus  20  filing bottom ones of individual chambers  476  first and top ones of individual chambers  476  last. In one example, at least some of individual chambers  476  is filed to its liquid capacity with breast milk  18  during use. 
     Once storage bag  412  is filled to a desired level, preferably, but not necessarily, filled until each individual chamber  476  is substantially filled, breastpump apparatus  20  is uncoupled from and moved away from storage bag  412 , and storage bag  412  is sealed via closure strips  430 . In one embodiment, even when individual chambers  476  are filled with breast milk  18 , storage bag  412  remains substantially flat as opposed to bulky in depth. Filled storage bag  412  is frozen in either a horizontal manner or in a vertical position illustrated in  FIGS. 22 and 23  to create a plurality of breast milk cubes  480 , one in each individual chamber  476 . When consumer wishes to use one of breast milk cubes  480 , consumer grasps storage bag  412 , as generally shown in  FIG. 25 , and manipulates the same by pushing side seams  36  toward one another and flaps  460  and  462  and bottom of storage bag  412  with sufficient force to cause interior seals  470  to release. As interior seals  470  release, front wall  422  is released from interior portions of rear wall  424 , in turn, opening storage chamber  428  as a single chamber with no individual chambers  476  therein, as illustrated in  FIG. 25 . The resulting open storage chamber  428  is filled with individual breast milk cubes  480  loosely maintained therein. In this state, the consumer is easily able to open storage bag  412 , and individually remove the one or more breast milk cubes  480  for use. The smaller breast milk cubes  480  are advantageous in a number of situations, including for use with the milk of another storage bag  12  that either was not fully filled and/or does not include enough breast milk for a typical single feeding of a given infant, for use where an infant has consumed a typical amount for a single feeding, but remains hungry, among others. 
       FIG. 26  illustrates another storage bag  512  for forming smaller breast milk cubes  580 , that is, substantially identical to storage bag  412  other than features defining the breast milk cubes  580 . Storage bag includes interior seals  570  that are each substantially linear, are each horizontal, and/or each run substantially parallel to each other. Each interior seal  570  is formed along a substantially entirety of a width of storage bag  512 , but for seal gaps  578  ends of interior seals  570  along alternating ones of side seams  426 , to form elongated horizontally extending individual chambers  576 . Breast milk  18  fills the bottommost individual chamber  576  first due to gravity. Filled storage bag  512  is used substantially identically to storage bag  412  to produce a plurality of breast milk cubes  580  in storage bag  512 . The elongated and narrow nature of breast milk cubes  580  is beneficial, as it allows individual ones of breast milk cubes  580  to be easily placed into a bottom through the bottle neck thereof, even if the bottle neck is quite narrow, prior to thawing. Other shapes of breast milk cubes and/or configurations of interior seals are also contemplated. 
     Although the invention has been described with respect to particular embodiments, such embodiments are meant for illustrative purposes only and should not be considered to limit the invention. Various alternatives and changes will be apparent to those of ordinary skill in the art upon reading this application. Other modifications within the scope of the invention and its various embodiments will be apparent to those of ordinary skill.