Wearable breast pump system

Abstract

A breastmilk pump system comprising at least one wearable breastmilk collector connected by an air tube line to a combined external air pump and control unit. Each breastmilk collector comprises: (a) a breast shield consisting of a breast wing and a nipple passage; (b) a flexible membrane configured to prevent breastmilk from reaching the external air pump; (c) a housing configured to be detachably attached to the breast shield such that when attached together the breast shield and the housing form a container for collecting breastmilk; (d) a membrane cover configured to be secured over the membrane, forming part of a front surface of the housing, and comprising a port connected to the air tube line.

Description

Background Technology 1. Technical Field

[0002] This invention relates to the field of wearable breast pump systems.

[0003] 2. Description of the prior art

[0004] A breast pump system is a mechanical or electromechanical device that extracts breast milk from the breasts of a lactating woman.

[0005] For most parents, most portable breast pump solutions with compact designs are not affordable. There is a need for a wearable breast pump system that features a stylish and compact design at a lower price point.

[0006] WO2018229504A1 describes a fully integrated wearable breast pump system. The wearable breast pump system includes a housing shaped to fit inside a bra. The housing includes an air pump that drives a diaphragm to generate negative pressure. The diaphragm is mounted on a diaphragm support positioned on the side away from the bra's wings.

[0007] The system described in US20080262420A1 illustrates a compact and hands-free human breast milk collection device that fits the mother's existing nursing bra or standard bra. The hands-free collection device is connected to an external conventional pump via a vacuum hose, which is also configured to apply vacuum pressure to the interior of the collection device. The vacuum hose is connected to a rod located at a fixed position on the top outer surface of the collection device. The position of the rod is chosen so that the pump does not draw breast milk into the external pump. Because connecting the vacuum hose to the rod on top of the device after placing the device on the breast would be inconvenient and difficult, the vacuum hose must be properly connected to the rod before placing the breast milk collection device on the breast.

[0008] The system described in US20180008758A1 also illustrates a breast milk collection device. The collection device connects to a vacuum tube via an opening located at a fixed position on the outer edge of the collection device. This opening communicates with an internal chamber comprising an expandable / contractable flexible barrier that allows vacuum pressure to be applied to the breast. The flexible barrier shell surrounding the flexible barrier has an elliptical cone shape and is located at the top of the collection device. Disadvantageously, the position of the flexible barrier obstructs view into the interior of the collection device and the nipple.

[0009] Wearable, hands-free breast pumps have entered the market, such as the Freemie cup system. The Freemie cup includes a flexible barrier at the top of the cup, which blocks the view of the inside of the cup and the nipple. In addition, the cup is made of a fairly opaque material, making it difficult to clearly see the inside of the device and the nipple and to achieve proper nipple alignment.

[0010] In light of the above, there is a need for improved methods to provide a simple and flexible connection between the straw and the wearable breast milk collection device. Unobstructed visibility of the internal chamber of the wearable breast milk collection device is also required to ensure proper nipple alignment and proper system operation, allowing breast milk to enter the device. Summary of the Invention

[0011] This invention relates to a breast pump system comprising at least one wearable breast milk collector connected via an air line to a combined external air pump and control unit. Each breast milk collector includes: a breast shield consisting of breast wings and nipple channels; a flexible diaphragm configured to prevent breast milk from reaching the external air pump; a housing detachably attached to the breast shield such that the breast shield and the housing, when joined together, form a container for collecting breast milk, and the front surface of the housing includes a curved portion; and a diaphragm cover configured to be fixed above the diaphragm and form part of the front surface or forward portion of the housing, and including a port for connection to the air line.

[0012] This arrangement allows the air line to connect to the front surface of the breast milk collector's casing; existing devices position the diaphragm and air line on top of the breast milk collector, which obstructs the user's downward view of the device, making proper nipple positioning difficult. With a diaphragm cover that forms part of the front surface of the casing, the user's downward view of the device is not obstructed by the diaphragm located above the nipple; proper nipple positioning is much easier to achieve.

[0013] In one embodiment, the diaphragm cover can be rotated relative to the housing to adjust the position of the air port, thereby adjusting the position and orientation of the port and the air line connected to it; this allows the user to easily adjust the position of the air line so that it is comfortably positioned under a bra or other clothing. The diaphragm cover can also be removed from the housing; the user can then place the collector on the breast without the diaphragm cover and without the inconvenience of the air line connected to the air port. Once proper nipple alignment is achieved, the diaphragm cover and the connected air line can be easily reattached to the housing of the breast milk collector. Attached Figure Description

[0014] Various aspects of the invention will now be described by way of example with reference to the following accompanying drawings, each illustrating a feature of the wearable breast pump system for implementing the invention:

[0015] Figure 1A The wearable breast pump system is shown, consisting of a pair of breast milk collectors, an air line, and a separate combined control and air pump unit located outside the breast milk collectors.

[0016] Figure 1BA wearable breast pump system is shown, in which a breast milk collector is connected to a combined control and air pump unit via an air line.

[0017] Figure 2 A perspective front view of a breast milk collector is shown.

[0018] Figure 3 A perspective rear view of the breast milk collector is shown.

[0019] Figure 4 The rear view of the breast milk collector is shown.

[0020] Figure 5 A perspective view of a breast milk collector without a shell and septum is shown.

[0021] Figure 6 An exploded view of a breast milk collector is shown.

[0022] Figure 7 The diaphragm is shown.

[0023] Figure 8 The cross-section of a breast milk collector in a relaxed state is shown.

[0024] Figure 9 The cross-section of a breast milk collector showing the diaphragm under maximum negative pressure is displayed.

[0025] Figure 10 A perspective view of a removable diaphragm cover without a trachea is shown.

[0026] Figure 11 A front view shows the removable diaphragm cover connected to the trachea.

[0027] Figure 12 A perspective view of a removable diaphragm cover, including rigid pressure components, is shown.

[0028] Figure 13A Other cross-sectional views of the breast milk collector are shown in relaxed, midpoint, and maximum negative pressure states.

[0029] Figure 13B Other cross-sectional views of the breast milk collector, including the breast milk port in the relaxed state, at the midpoint, and under maximum negative pressure, are shown.

[0030] Figure 14 This shows a perspective view of the casing without a removable diaphragm cover.

[0031] Figure 15 A side view of a breast milk collector is shown.

[0032] Figure 16 A top view shows the control and air pump unit used in the breast pump system.

[0033] Figure 17 A top view of the control and air pump unit is shown, with the upper housing of the unit removed.

[0034] Figure 18 An exploded view of the control and air pump unit is shown.

[0035] Figure 19 The components of the pump unit subsystem are shown.

[0036] Figure 20 The cross-section of the airflow block inside the control unit is shown.

[0037] Figure 21 The cross-section of the airflow block inside the control unit is shown.

[0038] Figure 22 The cross-section of the airflow block inside the control unit is shown.

[0039] Figure 23 The soundproof valve is shown.

[0040] Figure 24 The suction cycle diagram is shown.

[0041] Figure 25 A schematic diagram illustrating the pump unit subsystem of the suction cycle is shown.

[0042] Figure 26 A cross-section of the control unit, including the pump unit subsystem, is shown, illustrating the suction cycle.

[0043] Figure 27 The cross-section of the control unit, including the pump unit subsystem, is shown.

[0044] Figure 28 A table showing different examples of vacuum levels is displayed.

[0045] Figure 29 A schematic diagram of the control unit, including a multi-functional bracket, is shown.

[0046] Figure 30 An image of the control unit, including the accessories, is shown.

[0047] Figure 31 A schematic diagram of the control unit, including a multi-functional bracket, is shown.

[0048] Figure 32 The pipe connection is shown.

[0049] Figure Labels

[0050] Air line 1 leading to the breast milk collector

[0051] Air line 2 leading to the breast milk collector

[0052] Air line 3 leading from the combined control and air pump unit

[0053] 10 breast milk collection containers

[0054] Combined control and air pump unit 11

[0055] Tracheal connection assembly 12

[0056] User interface on control and air pump unit 13

[0057] Air port or hole 14 in the control and air pump unit

[0058] Air port or hole 15 in diaphragm cover

[0059] Breast milk collector casing 20

[0060] Breast bra 21

[0061] Diaphragm cover 22

[0062] Breastfeeding opening bra 23

[0063] The breast milk volume marking on the outer shell is 24.

[0064] 30 finger gripping part

[0065] 31 Nipple passage portion of the breast bra

[0066] Breast bra wing 32

[0067] Guide lines on breast bra 33

[0068] Breast milk pores in the nipple canal 41

[0069] Breast milk check valve 51

[0070] Second breast milk pore 52

[0071] Diaphragm housing 53

[0072] Diaphragm housing, annular rear wall 54

[0073] Diaphragm shell, cylindrical outer wall 55

[0074] Diaphragm shell, cylindrical inner wall 56

[0075] Diaphragm housing, front wall 57

[0076] Diaphragm 61

[0077] Seal 62 between the breast bra and the outer shell

[0078] Diaphragm, annular posterior wall 63

[0079] Diaphragm, cylindrical outer wall 64

[0080] Diaphragm, cylindrical inner wall 65

[0081] Diaphragm, anterior wall 66

[0082] Central axis 81 passing through the nipple canal

[0083] Pressure chamber 82 in a relaxed state

[0084] Pressure chamber 83 under maximum negative pressure

[0085] The chambers in the diaphragm cover are 84

[0086] Illustration of the end-user's breast area 85

[0087] Rigid pressure chamber component 91

[0088] Ball bearing 100

[0089] Cross section 101 in the relaxed state

[0090] Midpoint cross section 102

[0091] Cross section 103 under maximum pressure

[0092] Breast milk pouring opening 111

[0093] 120 flat portion of the diaphragm cover

[0094] Dual-function suction / pause button 130

[0095] Power on / off button 131

[0096] Button 132 for switching suction curves

[0097] Pressure relief button 133

[0098] Boost button 134

[0099] Pressure level visual indicator LED 135

[0100] Suction curve visual indicator LED 136

[0101] Battery status LED 137

[0102] USB-C charging socket 138

[0103] Base 140

[0104] Upper casing 151

[0105] Lower housing 152

[0106] Printed Circuit Board (PCB) 153

[0107] Air pump unit subsystem 154

[0108] 155 rechargeable battery

[0109] Pump Unit 161

[0110] Electromagnetic vent valve 162

[0111] Silencer motor bracket 163

[0112] Airflow block 164

[0113] Solenoid foam cap 165

[0114] Soundproof valve 166

[0115] Soundproof valve cover 167

[0116] Solenoid valve inlet 171

[0117] Solenoid valve outlet 172

[0118] Sealing component 173

[0119] Motor exhaust port 181

[0120] Accessory 241 of the package

[0121] Battery accessory 242

[0122] 251 Breast milk drawn from the nipple into the cavity

[0123] Detachable belt clip 261

[0124] Pipe splitter 261

[0125] Plug or stop in pipe splitter 262

[0126] O-ring 290

[0127] Control unit and O-ring 291 in vertical mode

[0128] Control unit and O-ring 292 in lateral mode

[0129] The first stage of the suction cycle (suction time) P

[0130] The second stage of the suction cycle (exhaust time) B Detailed Implementation

[0131] One embodiment of the present invention is a breast pump system for extracting and collecting breast milk. For example... Figure 1A As shown, the system includes a pair of breast milk collectors 10, a combined control and air pump unit 11, and an air tube connection assembly 12. In normal use, such as... Figure 1B As shown, tracheae 1 and 2 connect each breast milk collector 10 to a trachea connection assembly 12; the trachea connection assembly 12 connects tracheae 1 and 2 to a single trachea 3, which in turn leads to a control and air pump unit 11.

[0132] The breast milk collector can also be connected to any external control and air pump unit, including any external conventional electric or manual control and air pump unit.

[0133] The intended use cases involve users placing one or two breast milk collectors 10 on their breasts and connecting one or two collectors to the combined control and air pump unit 11 via air tubes 1, 2 and 3 and air tube connection assembly 12.

[0134] The user controls the device using a user interface 13 located on the control unit 11. The breast pump system is activated via the user interface 13, which activates the air suction pump within the control and air pump unit 11 (also referred to as the control unit). An air port or orifice 14 on the control and air pump unit 11 connects to a tube 3, which is split into two tubes 1 and 2 by a tube splitter in the air tube connection assembly 12. The two tubes 1 and 2 then deliver suction to the breast milk collector 10 through an air port or orifice 15 in each breast milk collector 10. When the pump in the unit 11 is activated, a negative pressure is generated between the control unit 11 and the breast milk collector 10, thereby applying negative pressure to the nipple, drawing breast milk from the breast, and collecting the breast milk in the breast milk collector 10.

[0135] The breast pump system can be operated using one (single-sided suction) or two (double-sided suction) breast milk collectors 10. Depending on the stimulation level selected by the user, the breast pump system can generate pressure ranging from 150 to 350 mmHg.

[0136] Figure 2 and Figure 3 A perspective view of the breast milk collectors is shown. All breast milk collectors 10 are identical and are constructed to be compact and comfortably held within a bra. The outer shell 20 has a curved shape configured to contact the inner surface of the bra. The outer shell 20 is fitted or locked onto a breast shield 21 forming the rear surface of the collector 10. The breast shield 21 consists of breast wings 32 and nipple channels 31; the internal space between the outer shell 20 and the breast shield 21 defines a chamber for collecting breast milk. The breast wings 32 contact the user's breasts. During normal use or disassembly, the outer shell 20 can be removed directly from the breast shield to allow cleaning of the internal space for collecting breast milk.

[0137] The housing 20 also includes a removable diaphragm cover 22 that covers and seals the diaphragm located within the breast milk collector. The diaphragm cover 22 is located at the front of the housing 20 and forms a central area on the front surface of the housing 20. The diaphragm cover 22 includes an air port or hole 15 that provides air connection to the control unit 11 via a tube. Because the diaphragm cover 22 is located at the front of the housing 20, it does not obstruct the user's view downwards through the transparent housing 20 of the interior of the breast milk collector; therefore, it allows the user to see whether the collector 10 is correctly positioned on the breast and whether breast milk is being successfully expressed into the collector 10.

[0138] During normal use or disassembly, the diaphragm cover 22 can be easily removed from the collector housing 20 with one hand. Since the air lines 1 and 2 are connected to the air ports 15 in the diaphragm cover 22, removing the diaphragm cover 22 from the housing 20 provides a secure, simple, and quick-release suction connection between the collector 10 and the control unit 11, and similarly provides a secure, simple, and quick-install suction connection between the collector 10 and the control unit 11. Overall, the air lines 1 and 2 remain secured to their respective diaphragm covers 22, so the user does not need to worry about the potentially difficult process of connecting the air lines to the air ports 15 in each collector 10.

[0139] The removable diaphragm cover 22 can rotate relative to the housing 20 to adjust the position of the air port on the housing, thereby adjusting the position and orientation of the air lines 1 and 2; this allows the user to easily adjust the position of the air lines 1 and 2 so that they are comfortably located under a bra or other clothing. The user can place the collector 10 on the breast without the diaphragm cover and without the inconvenience of connecting the air lines 1 and 2 to the air port 15. Once proper nipple alignment is achieved, the diaphragm cover 22 and the connected tubes can be easily attached to the collector 10.

[0140] exist Figure 3 In this design, the breast shield 21 includes a nipple channel 31 shaped to receive the nipple and a wing plate 32. Preferably, the breast shield 21, including the wing plate 32 and the nipple channel 31, is a one-piece product made from a single molded part having a single smooth inner surface. There are no connecting joints along the nipple channel; connecting joints could aggravate the delicate nipple tissue when the nipple stretches and contracts during suction.

[0141] The breast shield 21 can be configured to slide onto the outer shell using a single push. The breast shield 21 and the outer shell 20 can also be attached magnetically.

[0142] Preferably, the breast shield 21, the outer shell 20, and the diaphragm cover 22 are substantially rigid and optically transparent or substantially transparent, for example, to allow unobstructed view of the nipple and the interior of the collector 10. The breast shield 21, the diaphragm cover 22, and the outer shell 20 may, for example, be entirely made of materials such as polypropylene or polycarbonate, or materials such as Tritanium. TM The breast milk collector 10 is made of a substantially transparent, rigid, dishwasher-safe material, or includes portions of such material sufficient to allow the user to clearly see the interior of the breast milk collector 10. Dishwasher-safety is important because it allows all components to be easily cleaned during a normal dishwashing cycle. This also allows for easy cleaning and / or sterilization of the different components of the wearable breast pump system. This rigidity and transparency help achieve proper nipple alignment when the entire breast milk collector 10 is placed on the breast, and allow the user to easily check for alignment while pumping. Breast milk collectors made of very flexible silicone can be difficult to place correctly on the breast. The user can also clearly see the nipple canal through the substantially transparent walls of the collector 10, further ensuring proper spacing between the nipple and the sidewalls of the nipple canal 31 during pumping.

[0143] During the suction phase, the user can also observe the interior of the breast milk collector 10 and ensure that breast milk is being expressed into the collector 10, with an indication of the level of breast milk collected within the collector. A scale 24 located on the outer casing 20 indicates the volume of breast milk within the collector 10.

[0144] The breast shield 21 may also include guide lines 33 extending parallel to the sides of the breast shield to aid in nipple alignment; these guide lines 33 are designed to be generally horizontal in use and easily visible to the user when the breast shield 21 is placed on the breast; these lines enable the user to correctly position the breast shield 21 so that the nipple is generally aligned with the center line passing through the nipple canal (e.g., Figure 8 The central axis 81 shown is positioned.

[0145] The housing also includes a breast milk pouring opening, which can be closed using a removable component 23 to cover the breast milk pouring opening during suction and general handling.

[0146] The breast shield 21 and / or shell 20 may be made of a substantially rigid, optically transparent, dishwasher-safe polypropylene material, or a polycarbonate or copolyester material (e.g., Tritan material). Materials may be specifically selected to balance cost and acceptable achievable transparency.

[0147] Figure 4A rear view of the breast milk collector is shown. As shown, the nipple channel 31 includes a breast milk orifice 41 through which expressed breast milk flows onto the breast milk collector. The guide line 33 is located above and not aligned with the central axis of the nipple channel 31; this compensates for the slight parallax that occurs when viewing the guide line 33 and the nipple from above.

[0148] Figure 5 A perspective view of a one-piece rigid breast shield 21 without a shell and diaphragm is shown. The breast shield 21 includes an annular diaphragm shell 53; the diaphragm shell 53 has a generally cylindrical outer wall 55 that is generally parallel to the nipple channel 31, and a generally concentric generally cylindrical inner wall 56 that forms the outer wall of the nipple channel 31. The diaphragm shell 53 has a front wall 57 that forms the end of the nipple channel; it also has an annular rear wall 54 connecting the concentric inner wall 56 and the outer wall 55.

[0149] Figure 8 A cross-section showing these characteristics is provided. Flexible membrane 61 (see...) Figure 6-9 and Figure 13A and 13B In the relaxed state (i.e., when no negative pressure is applied), these walls are flush with the annular diaphragm housing 53 and thus have similar shapes, having an generally cylindrical outer membrane wall 64 flush with the cylindrical outer wall 55 of the housing; a concentric inner membrane wall 65 flush with the cylindrical inner wall 56 of the housing; a front wall 66 located above the end of the front wall 57 of the housing that forms the nipple channel; and an annular rear wall 63 flush with the rear wall 54 of the diaphragm housing.

[0150] The diaphragm cover 22 is positioned above the flexible diaphragm or membrane 61, thus creating a negative pressure chamber between the diaphragm cover 22 and one side of the flexible diaphragm 61. Therefore, when suction is applied, the diaphragm 61 moves within a pump chamber formed on one side by the diaphragm housing 53 and on the other side by the diaphragm cover 22; the flexible diaphragm 61 is pulled forward along the central axis 81, moving through this negative pressure chamber. As the flexible diaphragm 61 is pulled forward, it creates a low-pressure region on the other side of the flexible diaphragm 61 (i.e., on the side between the flexible diaphragm 61 and the diaphragm housing 53). This further reduces the air pressure inside the nipple passage 31, because the milk pore 41 in the nipple passage 31 ensures equal air pressure between the inside of the nipple passage 31 and the inside of the diaphragm housing 53; the reduced pressure pulls the nipple forward, causing breast milk to be expressed from the nipple. Breast milk flows through the breast milk orifice 41 of the nipple channel 31, then through a second breast milk orifice or opening 52 located on the diaphragm housing 53, and then through a check valve 51 installed on the second breast milk orifice or opening 52 into the collector. The check valve allows the breast milk to flow into the breast milk container in one direction. Note that the diaphragm housing 53, and therefore the diaphragm 61, is positioned towards the end of the nipple channel 31, away from the breast shield 21. The diaphragm 61 actually extends above the end of the nipple channel 31. The advantage of this structure is that when the nipple is positioned within the nipple channel 31, the user can observe downwards more clearly through the nipple channel 31; if the diaphragm housing 53 were closer to the breast shield 21, this observation would be obstructed. However, the disadvantage is that the breast milk collector 10 is not compact in the direction of the nipple channel and is shaped to fit inside the bra.

[0151] Preferably, the check valve is removable for easy cleaning.

[0152] When the outer casing 20 is mounted on the breast shield 21, the collector forms a container in which breast milk is collected after passing through a check valve with the capacity to collect approximately 5 fluid ounces (148 ml).

[0153] The collector also includes, for example, a vent located at the top of the outer shell, so that atmospheric pressure can be maintained inside the container even during negative pressure cycles.

[0154] Figure 6 An exploded view of the breast milk collector 10 is shown. In this example, the wearable breast milk collector 10 includes the following user-removable components: a breast shield 21, a housing 20, a diaphragm 61, and a diaphragm cover 22. The diaphragm cover 22 is hermetically sealed to the flexible diaphragm 61. An hermetically sealed connection between the breast shield 21 and the housing 20 is provided by a removable sealing member 62.

[0155] The flexible diaphragm 61 can be completely removed from the collector 10 or can be formed as an integral part of the housing 20. When it is removable, it is pushed into the housing 20 to form a hermetically and liquidally tight seal. When it is integral to the housing, the flexible diaphragm 61 is typically laser-welded to a single circular edge in the housing 20 at its single outer circular edge.

[0156] As described above, the breast shield 21 includes a diaphragm housing 53, in which a flexible diaphragm 61 can be moved in and out during assembly. The diaphragm housing 53 includes vents for transmitting negative pressure to the nipple passage 31; this can be a breast milk vent 41 in the nipple passage 31 or another vent (not shown). When an external air pump unit subsystem located in the control unit applies negative pressure to the diaphragm 61, the diaphragm 61 bends and transmits negative pressure to pull the breast and / or nipple toward the breast shield and apply suction to the nipple to express breast milk.

[0157] Figure 7 A side view and a perspective view of the diaphragm 61 are shown. The diaphragm 61 is configured to prevent breast milk from reaching the pump unit housed inside the control unit 11.

[0158] The overall dimensions of the diaphragm are: approximately 77.3 mm in diameter and approximately 24 mm in height (i.e., depth along the long axis 81 of the nipple channel). At maximum suction, the diaphragm displaces approximately 17550 mm of air. 3 Typical variants can be ±25% of these dimensions.

[0159] The diaphragm 61 is not a substantially flat or ridged convex membrane, as found in the Elvie pump. Instead, it has a generally cylindrical outer wall 64 that is generally parallel to the nipple channel 31, and a generally cylindrical inner wall 65 that is also generally parallel to the nipple channel 31. The diaphragm 61 has an anterior wall 66 that covers the inner wall 65 and is located above the end of the nipple channel 31. It also has an annular posterior wall 63 connecting the outer wall 64 and the inner wall 65.

[0160] Figure 8This is a cross-section of the breast 85 inserted into the breast milk collector in a relaxed state, showing the axis of the diaphragm 61 relative to the nipple canal 81, the breast milk port 41, and the pressure chamber 82. The flexible diaphragm 61 includes an outer wall 64 and an inner wall 65, as well as portions substantially perpendicular to the central axis of the nipple canal 81, each of the outer wall 64 and the inner wall 65 being substantially parallel to the central axis of the nipple canal 81. As shown, the diaphragm 61 includes an annular inner wall 63 perpendicular to the central axis 81 and an end cap wall 66. The majority of the flexible diaphragm 61 is located above and to the right of the breast milk port 41 (i.e., away from the breast). Therefore, the breast milk collector 10 is designed not to be compact in the axial direction of the nipple canal 81. Furthermore, within the nipple canal, the entire volume or space to the right of the nipple and breast is subjected to negative pressure; therefore, the negative pressure zone begins at the skin / air boundary, and thus the flexible diaphragm 61 is entirely located to the right of the negative pressure zone adjacent to the breast (i.e., away from the breast). Similarly, this results in the milk collector 10 not being compact along the axis of the nipple channel 81. However, this compromise is necessary so that the user can clearly see the nipple and outer shell 20 through the transparent material of the breast shield 21, thereby ensuring that the nipple is correctly positioned within the nipple channel 31: correct positioning is crucial for both comfort and effective milk expression.

[0161] Figure 9 This is a cross-section of the breast 85 inserted into the breast milk collector, showing the diaphragm 61 under maximum negative pressure. During the negative pressure phase, the flexible diaphragm 61 bends and moves to the right; even the posterior wall 63 moves through the breast milk port 41. The central portion 66 of the diaphragm 61 is always substantially located to the right of the end of the nipple canal 31 (i.e., extending beyond the end of the nipple canal 31). During suction, the central portion 66 also moves forward into a pair of chambers 84 in the diaphragm cover 22; this additional movement of the diaphragm 61 significantly contributes to suction within the nipple canal and thus to the effectiveness of breast milk suction.

[0162] The diaphragm 61 and the associated diaphragm cover 22 are also located at the front of the collector 10 so as not to obstruct the mother’s view of the nipple when she places the collector 10 on her breast.

[0163] Figure 10 A perspective view of the removable diaphragm cover 22 is shown. The diaphragm cover 22 includes a pair of hollow or recessed finger grips 30, making it easy to operate with only two fingers. The diaphragm cover 22 is easily rotated to adjust the position of the air port 15, thereby adjusting the position of the air tubes 1, 2 (not shown) that will be connected to the air port 15.

[0164] Figure 11A front view of a removable diaphragm cover 22 connected to the trachea 1 is shown. The trachea 1 passes through a passage located at the center of the diaphragm cover 22, providing additional protection for the trachea 1 to prevent it from being pulled out during use, and aligning the direction of the tube 1 with the surface of the bra. The diaphragm cover 22 can also be configured to be attached to the housing 20 via a locking system. The diaphragm cover 22 can be locked into the housing 20 when a spring plunger (e.g., a ball bearing 100 in the diaphragm cover) is positioned in a small notch in the housing 20. Auditory and / or tactile feedback can confirm that the removable diaphragm cover 22 and the trachea 1 are correctly assembled.

[0165] Figure 12 A side view of a removable diaphragm cover 22, including an additional rigid member 91, is shown. The additional member 91 is detachable from the diaphragm cover 22 and is also shown separately. Alternatively, the additional member 91 may be an integral part of the diaphragm cover 22. The additional member 91 reduces the volume of the pump chamber, thus resulting in improved pumping efficiency.

[0166] Figure 13A A cross-section of the breast 85 inserted into the breast milk collector 10 is shown, including an additional rigid member 91 located in the pressure chamber. Figure 13B A similar cross-section of a breast milk collector is shown, but without the nipple. Note that the nipple size is approximate; nipple size and how the nipple extends during milk collection vary considerably. Also note that these device cross-sections are merely examples, and commercially available devices may differ. The diaphragm 61 is positioned above the end of the nipple channel 31 and extends beyond the breast milk port 41 in the direction of axis 81 for the reasons given above, i.e., providing a clear view of the nipple in the transparent nipple channel 31. The cross-section illustrates the movement of the diaphragm 61 from a relaxed state 101 to a midpoint 102 and finally under maximum suction 103. The diaphragm 61 in its relaxed state, along with the axis of the nipple channel 81, the breast milk port 41, and the pressure chamber, are shown. The rigid pressure chamber component 91 reduces the air volume within the pressure chamber by restricting the movement of the diaphragm 61 under negative pressure, for example, by blocking a pair of chambers 84 in the diaphragm cover 22. The central portion 66 of the diaphragm 61 is always substantially located to the right of the end of the nipple channel 31 (i.e., extending beyond the end of the nipple channel 31). When suction is applied, component 61 moves forward through the negative pressure chamber along the central axis 81 of the wearable collector, as shown in midpoint illustration 102. When diaphragm 61 is fully displaced under maximum negative pressure, diaphragm 61 becomes flush with the rear surface of rigid pressure chamber component 91.

[0167] In this configuration, by minimizing the air volume in the pressure chamber, faster response times and faster cycle times, as well as larger peak negative pressures, are achieved for both single-sided and double-sided suction. In one embodiment, using single-sided suction, the minimum pressure is 50 mmHg at a cycle time of 75 cycles / minute, and the maximum pressure is 350 mmHg at a cycle time of 30 cycles / minute. Using double-sided suction, the minimum pressure is 30 mmHg at a cycle time of 75 cycles / minute, and the maximum pressure is 280 mmHg at a cycle time of 30 cycles / minute.

[0168] Figure 14 A perspective view of the outer casing 20, including the breast milk pouring opening 111, is shown.

[0169] Figure 15 A side view of the breast milk collector is shown. The overall width of the breast milk collector 10 along the central axis of the nipple canal is approximately 5.7 cm; it is not designed to be particularly thin or compact in the axial arrow direction, and its width is similar to that of earlier breast collectors (e.g., Playtex Embrace). TM Similar to or larger. The breast milk collector 10 includes a flat portion 120 on the diaphragm cover 22, such that the entire breast milk collector 10 can be placed on a flat surface, with the breast shield 21 on top.

[0170] Optionally, the breast milk collector 10 may also include a flat portion located at the base of the housing 20, such that the entire breast milk collector 10 can be placed on a flat surface, with the breast milk opening 111 located at the top.

[0171] Control Unit

[0172] The control unit 11 is configured to generate negative pressure for the breast pump system. The control unit 11 has a compact form and is shaped to fit comfortably in the palm of the hand and can be easily gripped with one hand.

[0173] The control unit 11 is shaped to fit inside a pocket (or even a bra). Preferably, the length of the control unit is less than 120 mm, the width is less than 70 mm, and the height is less than 45 mm. Preferably, the control unit weighs less than 0.2 kg.

[0174] The user interface 13 located on the control unit 11 may include buttons, haptic feedback, sliders, any form of display, lights, or any other components necessary for controlling and indicating the use of the breast pump system. The user interface is designed to be intuitive and easy to use.

[0175] Figure 16A specific example of the user interface 13 is provided, showing a top view of the control unit 11. A power on / off button 131 turns the breast pump system on or off. A button 132 switches the suction curve, for example, switching between stimulation and expression modes. Buttons 133 and 134 adjust the pressure generated by the pump, thereby adjusting the vacuum pressure applied to the user's breasts. A dual-function suction / pause button 130 is also provided for the user to interrupt the suction process without turning off the device.

[0176] The visual indicator includes a series of LEDs 135 that change appearance, with more LEDs illuminating as the pressure generated by the pump increases. Another visual indicator includes LEDs 136 that change appearance as the suction curve changes. For example, one color indicates stimulation, and another color indicates milk expression. As another example, the LEDs can be off to indicate stimulation and on to indicate milk expression. Another visual indicator includes LEDs 137 that indicate battery status. For example, red indicates low battery; orange indicates the battery is charging; and green indicates the battery is fully charged.

[0177] The battery is a rechargeable battery that can be charged via USB. Therefore, the control unit includes a USB charging socket 138 for transmitting power to the charging circuit housed within the control unit.

[0178] Information provided through the user interface can also be supplemented by haptic feedback or conveyed solely through haptic feedback. The user interface can also take the form of a touchscreen.

[0179] Figure 17 The control unit is shown after the upper housing has been removed. Visual indicators 135, 136, and 137, including LEDs, are mounted or attached to the base 140.

[0180] Figure 18 An exploded view of a control unit 11 with some key internal components is shown. The outer surface of the control unit is formed by an upper housing 151 and a lower housing 152, which, when assembled together, are adapted to accommodate, hold, and protect the internal components of the control unit 11.

[0181] The control unit 11 houses an air pump unit subsystem 154 for generating negative pressure in the breast milk collector, as well as control electronics on the battery 155 and PCB 153. The base 140 holds the main components (e.g., air pump unit 154, battery 155, and PCB 153) in place. The base also includes actuators located between the user interface and the PCB switches.

[0182] The breast pump system is designed to provide quiet operation during normal use. In particular, the control unit has been designed to reduce motor vibration and attenuate noise from the pump unit subsystem 154.

[0183] Components of pump unit subsystem 154 such as Figure 19 As shown. Pump unit 161, including a pump driven by a motor, is configured to generate negative pressure. Pump unit 161 is connected to an exhaust valve, such as solenoid valve 162, which is configured to reset the system to ambient pressure when the motor stops.

[0184] Reduce motor vibration and attenuate sound

[0185] The breast pump system is designed to be more sophisticated in terms of noise volume and sharpness compared to existing solutions. This is achieved through one or more of the following: reducing the sound generated by the pump unit 161; soundproofing the control unit 11; reducing the power of the pump unit 161; reducing exhaust noise by slowing the airflow during the rapid return to ambient air pressure after each pumping cycle; and absorbing the vibration of the pump motor in the pump unit subsystem 154.

[0186] Motor vibration is reduced by properly positioning the pump unit 161 between two silicone components: the silencer motor bracket 163 and the airflow block 164. The silencer motor bracket 163 supports the rear of the pump motor and absorbs some of its vibrations. The airflow block 164 includes an air port or orifice for guiding airflow from the pump unit 161 to the tube connector 14 and also absorbs some of the pump unit's vibrations. By using these two silicone components, vibration transmitted to the hard plastic housings 151, 152 is significantly reduced, making the unit much quieter than other suction units; a major advantage when seeking discretion and reducing disturbance to the baby.

[0187] The silencer motor bracket 163 and the airflow block 164 are both one-piece products made of compression molded or ISR molded silicone resin.

[0188] Figures 20 to 22 A cross-section of the airflow block is provided, illustrating the air path within the airflow block.

[0189] Airflow Block 164 is a multi-functional block; it:

[0190] • Direct or direct airflow from pipe connector 14 or inlet to pump unit 161 (see...) Figure 20 ).

[0191] • Air from the motor exhaust port 181 is guided into the atmosphere through a simple straight hollow tube with an outlet path at one end (see...). Figure 21 ).

[0192] • Provide mounting brackets for the solenoid valve inlet 171 and outlet 172 (see...) Figure 20 and 22 ).

[0193] • Provides an isolation barrier for motor vibration.

[0194] The airflow block 164 is therefore constructed to both attenuate sound and reduce motor vibration.

[0195] Many components can be used to further reduce the noise generated by the pump unit subsystem, including but not limited to:

[0196] • The 165mm solenoid foam cap reduces exhaust flow and noise.

[0197] • The soundproof valve 166 located at the lower part of the housing 152 (also as Figure 23 (As shown). The soundproof valve 166 allows the internal pressure of the control unit 11 to be maintained at ambient pressure without emitting a high level of noise from the control unit 11. The soundproof valve cap 167 also serves to protect the soundproof valve 166 from external environmental influences.

[0198] • The control unit 11 is sealed to further attenuate sound. For example, a sealing member 173 is provided around the periphery of the control unit 11 between the upper part 151 and the lower part 152 of the housing (see...). Figure 23 Therefore, air is not allowed to escape from the control unit 11, in order to reduce the sound of the pump unit 161 propagating outside the control unit 11. Optionally, the airflow block 164 may also be integrated with a portion of the sealing member 173.

[0199] A silencer or muffler can also be used to reduce air noise emanating from the intake and / or exhaust ports. One silencer can be connected to an electromagnetic 162 and another silencer can be connected to a pump motor.

[0200] The soundproof valve 166 located on the lower part 152 of the housing is as follows Figure 19 and 23 As shown. The soundproof valve 166 is a silicone component configured to deform under pressure. Therefore, it allows air to enter and exit the control unit 11 while significantly reducing motor and pump noise emanating from the control unit 11. The soundproof valve 166 also ensures that the interior of the control unit 11 remains at ambient pressure and that the pump unit 161 operates under proper conditions.

[0201] Soundproof valves may include small cross-sectional cutouts.

[0202] Now Figures 24 to 26 The text describes the suction cycle.

[0203] Once the system is started, the suction cycle begins: the pneumatic pump turns on and generates negative pressure during the first phase of the suction cycle, known as the suction time (P). When negative pressure is applied to the breast milk collector 10, the flexible diaphragm 61 bends and the negative pressure is transmitted into the interior of the nipple passage 31, pulling the breast and / or nipple, thereby drawing breast milk 251 from the nipple. During the first phase (P) of the suction cycle, the pneumatic pump 161 is configured to turn on for a predetermined amount of time to provide the target negative pressure. During this first phase, the solenoid valve 162 is configured to turn off.

[0204] After the target negative pressure is reached, the air pump 161 shuts off, and during the second phase of the suction cycle, known as the exhaust time (B), air is discharged into the system through the solenoid valve 162. Therefore, at the end of the exhaust time, the system resets to ambient pressure.

[0205] In this second phase of the suction cycle, solenoid valve 162 opens to reset the pressure in breast milk collector 10 to ambient pressure. This causes air to rush into solenoid valve 162 and produce a sound, such as a sharp, high-frequency sound. As described above, using... Figure 27 The solenoid foam cap 165 shown reduces air impact entering the solenoid valve 162, thus reducing the overall noise generated by the solenoid valve 162. The solenoid foam cap 165 includes one or more small openings or holes configured to reduce and control the air velocity entering the solenoid valve 162. The solenoid foam cap 165 can be a one-piece product made of plastic.

[0206] By controlling the suction and degassing times, suction cycles can be programmed to follow different modes, such as stimulation and suction modes. Suction cycles and / or modes can also be programmed to achieve different levels of vacuum.

[0207] The stimulation mode is configured to promote breast milk flow, while the suction mode is configured to maximize suction efficiency. Each mode includes several different vacuum levels, such as 10 different vacuum levels, which can be selected via the user interface on the control unit.

[0208] Figure 28 Examples of 10 different vacuum levels are listed for stimulation and suction modes, as well as for single-sided and double-sided suction. This is an example; commercially available units may differ. Adjusting the power delivered to the pump motor can also reduce system noise.

[0209] Therefore, the required vacuum level and sound for a specific mode can be achieved by controlling the timing of the two phases of the suction cycle and the power delivered to the pump motor.

[0210] The control unit has a complete seal 173 around its periphery (see Figure 23This significantly reduces air noise leaving the unit. This seal creates a quieter product for the user.

[0211] Overall, the noise level should be less than 50dB during operation, and preferably less than 45dB.

[0212] Multiple detachable accessories attached to the control unit 11 can be used to improve the user experience. For example, these may include:

[0213] • A removable auxiliary battery pack is used to increase the length of time a user can pump between charges.

[0214] • A tube wrapping device, clipped to the back of the control unit, allows users to neatly store tubes by wrapping them. This also allows users to customize the length of their tubes during use.

[0215] • Belt clips allow users to attach the control unit to their clothing and wear it around their waist or elsewhere.

[0216] • A lanyard clipped onto the control unit allows users to wear the control unit by hanging it around their neck.

[0217] The connection method of the accessories may involve an O-ring-style ring that extends to the control unit at multiple locations, thereby allowing the control unit to be installed in a vertical or horizontal orientation.

[0218] Accessories for the control unit

[0219] The control unit may also include several easily detachable accessories.

[0220] Figure 29 A diagram shows a control unit 11 including a multi-functional stand such as an O-ring 290. The multi-functional stand allows the control unit 11 to be easily held by the user's fingers in different modes (e.g., vertical mode 291 or horizontal mode 292).

[0221] Figure 30 Images are shown of a control unit 11 including a tube-wrapped accessory 241 located below the bottom housing of the control unit 11, and an image of a control unit including a battery accessory 242 (e.g., a battery pack) located below the bottom housing of the control unit 11.

[0222] Figure 31 An image shows a control unit 11 including an O-ring 290 mounting bracket extending around the periphery of the control unit 11. The mounting bracket includes a removable belt clip 261, allowing the control unit to be clipped, for example, to a belt or trousers.

[0223] Pipe connectors

[0224] Figure 32 The diagram shows a tubing connector 12 including a tubing splitter 261. The tubing splitter 12 effectively divides the air line 3 from the combined control and air pump unit 11 into two separate air lines 1 and 2, which connect to the two breast milk collectors 10. The tubing splitter 12 is attached to one end of the air lines 1 and 2, the other end of which connects to an air port 14 in each breast milk collector 10. The tubing splitter is also attached to one end of the air line 3, the other end of which connects to the combined control and air pump unit 11. The tubing splitter 12 includes a stopper or block 262 that can be rotated to configure the breast pump system for unilateral or bilateral pumping by creating an air path from the air line 3 to the left air line 1 or the right air line 2 to activate only the left collector or the right collector, respectively; or it can create an air path from the air line 3 to both the left and right air lines 1 and 2 for bilateral pumping.

[0225] Applications running on connected devices

[0226] The system can send pump system-related data to a connected smartphone or other computer device. The data can then be further analyzed by a data analytics subsystem. The data can also be displayed on an application running on the computing device.

[0227] This application can offer one or more of the following features:

[0228] • Precise / remote control of the device, such as: start / pause, mode change, intensity setting change.

[0229] • Battery life indicator.

[0230] • Use time and date tracking.

[0231] • Tracking breast milk production.

[0232] • Integrate with other devices, such as other breast pump systems.

[0233] Appendix 1

[0234] The key features of breast pump systems can now be summarized into the following categories:

[0235] A. User experience: Nipple visibility

[0236] B. Cost Engineering: Simple

[0237] C. User experience: Low noise

[0238] D. User Experience: Product Operation

[0239] Please note that any feature can be combined with any one or more other features. However, the invention is defined in the appended claims. Further note that while the above-described embodiment is a breast pump system with one or two wearable breast milk collectors connected to an external air pump, the air pump unit, rechargeable battery, and control electronics can be integrated within each breast milk collector, in a manner substantially similar to the Elvie Pump (see WO 2018 / 229504), integrating the air pump, rechargeable battery, and control electronics into a wearable unit that includes a user-connectable breast milk collection container. Unless explicitly stated otherwise, the following features do not require an external air pump but should be broadly interpreted to cover breast pump systems that can use either an external or internal air pump. Similarly, while the above-described embodiment is a breast pump system with a closed-loop air pump (i.e., protecting the pump from any possibility of contamination by breast milk passing through the flexible membrane), unless explicitly stated otherwise, the following features do not require a closed-loop air pump but should be broadly interpreted to cover breast pump systems that are both closed-loop and open-loop.

[0240] A. User Experience Innovation: Nipple Visibility

[0241] Feature 1: Visibility of the nipple

[0242] One embodiment of the invention envisions a wearable breast milk collector for a breast pump system that allows clear and unobstructed view of the nipple for easy nipple alignment. This ensures proper alignment during pumping. Both the breast shield and the outer shell are substantially transparent, allowing clear and unobstructed view of the nipple when the assembled system is placed on the breast. This further enables the user to ensure adequate nipple suction when placing the breast pump system on the breast and during pumping.

[0243] We can summarize it as follows:

[0244] A wearable breast milk collector for a breast pump system, comprising:

[0245] (a) A breast shield consisting of breast wings and nipple canals;

[0246] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0247] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0248] The breast shield and shell are essentially transparent, allowing the mother placing the collector on her breast to clearly and unobstructedly observe the nipple in order to correct nipple alignment.

[0249] Feature 2: Visibility of the nipple and flexible septum

[0250] In addition to providing clear and unobstructed visibility of the nipple, the system also allows for clear and unobstructed observation of the septum inside the collector. During suction, the user can see any movement of the septum and ensure the system is functioning correctly. The septum's placement does not obstruct the view of the nipple, thus allowing simultaneous viewing of both the nipple and the flexible septum.

[0251] We can summarize it as follows:

[0252] A wearable breast milk collector for a breast pump system, comprising:

[0253] (a) A breast shield consisting of breast wings and nipple canals;

[0254] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0255] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0256] The breast shield and outer shell are essentially transparent, allowing the mother to simultaneously (i) clearly and unobstructed view of the nipple to facilitate nipple alignment and (ii) view of the diaphragm to ensure the breast pump system is functioning properly when the pump is placed on her breast.

[0257] Feature 3: Visibility of the nipple and a large portion of the nipple canal

[0258] The system also allows unobstructed viewing of the nipple canal for easy nipple alignment when the system is placed on the breast and suction is in progress. This further ensures proper positioning and maintenance of the distance between the nipple and the sidewalls of the nipple canal during suction.

[0259] We can summarize it as follows:

[0260] A wearable breast milk collector for a breast pump system, comprising:

[0261] (a) A breast shield consisting of breast wings and nipple canals;

[0262] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0263] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0264] The breast shield and shell are essentially transparent, allowing the mother placing the collector on her breast to (i) clearly and unobstructed view of the nipple to facilitate correction of nipple alignment, and (ii) clearly and unobstructed view of a large portion of the nipple canal.

[0265] Feature 4: The diaphragm is removable and can be installed.

[0266] The wearable breast milk collector also includes a removable diaphragm configured to separate the air pump side from the breast milk side located within the collector, thereby preventing the air pump unit from being contaminated by any breast milk. The diaphragm is shaped to include portions that are substantially parallel to or substantially perpendicular to the central axis of the nipple canal.

[0267] We can summarize it as follows:

[0268] A wearable breast milk collector for a breast pump system, comprising:

[0269] (a) A substantially transparent breast shield consisting of breast wings and nipple canals;

[0270] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0271] (c) A substantially transparent outer shell configured to be detachably attached to a breast shield, such that the breast shield and the outer shell form a container for collecting breast milk;

[0272] The diaphragm is detachably mounted on the breast shield and / or shell, and the diaphragm includes a portion disposed above the end or tip of the nipple canal.

[0273] Feature 5: The specific shape and position of the diaphragm

[0274] The diaphragm is also positioned so that it does not obstruct the mother's view of the nipple when she places the collector on her breast. Therefore, when the air pump is activated, the mother can see any movement of the diaphragm, further ensuring the proper functioning of the breast pump system.

[0275] We can summarize it as follows:

[0276] A wearable breast milk collector for a breast pump system, comprising:

[0277] (a) A breast shield consisting of breast wings and nipple canals;

[0278] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0279] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0280] The diaphragm is detachably mounted on the breast shield and / or shell and is located behind the diaphragm cover, which forms part of the front or forward portion of the shell so as not to obstruct the mother's observation of the nipple when the mother places the collector on her breast.

[0281] B. Cost Engineering Innovation: Simplicity

[0282] Feature 6: Removable diaphragm cover

[0283] The wearable breast milk collector includes a removable diaphragm cover configured to cover and seal the diaphragm. The diaphragm cover can be easily removed or attached with a single push when the collector is placed on the breast. The diaphragm cover includes an air port or hole for connecting tubing between the breast milk collector and an external control unit housing the pump unit subsystem.

[0284] Therefore, the mother can place the collector on her breast without the need for a diaphragm cap or the inconvenience of a tube connected to an air port. Once the breast milk collector is correctly placed on the breast, the mother can easily connect the diaphragm cap to the tube with a single push.

[0285] We can summarize it as follows:

[0286] A wearable breast milk collector for a breast pump system, comprising:

[0287] (a) A breast shield consisting of breast wings and nipple canals;

[0288] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0289] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0290] The housing includes a removable diaphragm cover that covers and seals the diaphragm; and the diaphragm cover forms part of the front or forward portion of the housing and includes an air port configured to transfer negative pressure from an external air pump subsystem to the diaphragm.

[0291] Feature 7: The removable diaphragm cover is omnidirectional.

[0292] Another advantage of the diaphragm cover is that it is omnidirectional and can be easily rotated on the rear surface of the housing, allowing the user to change or rotate the position of the air port on the diaphragm cover. This also helps the user change the position of the tube connected to the diaphragm cover. This feature also provides additional versatility and / or flexibility for use by different users and body shapes wearing different clothing, to achieve comfort and / or flexibility.

[0293] We can summarize it as follows:

[0294] A wearable breast milk collector for a breast pump system, comprising:

[0295] (a) A breast shield consisting of breast wings and nipple canals;

[0296] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0297] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0298] The housing includes a removable diaphragm cover that covers and seals the diaphragm; and the diaphragm cover forms part of the front or forward portion of the housing and includes an air port configured to transfer negative pressure from an external air pump subsystem to the diaphragm; and the removable diaphragm cover is configured to rotate so that a user can adjust the position of the air port on the housing.

[0299] Feature 8: Three user-removable parts of the breast bra

[0300] We can summarize it as follows:

[0301] A wearable breast milk collector for a breast pump system, comprising:

[0302] (a) A breast shield consisting of breast wings and nipple canals;

[0303] (b) Constructed as a flexible diaphragm to prevent breast milk from reaching the external air pump subsystem;

[0304] (c) A shell configured to be detachably attached to a breast shield, such that the breast shield and the shell form a container for collecting breast milk;

[0305] (d) A diaphragm cover, which forms part of the front or forward portion of the housing;

[0306] Furthermore, the only items that a user can remove from the breast bra during normal use or disassembly are: the outer shell, the diaphragm, and the diaphragm cover.

[0307] C. User Experience Innovation: Low Noise

[0308] Feature 9: Airflow Block

[0309] We can summarize it as follows:

[0310] A control unit for generating negative pressure for a breast pump system, the control unit comprising:

[0311] (a) Rechargeable battery;

[0312] (b) A charging circuit that controls the charging of a rechargeable battery;

[0313] (c) Control electronic devices powered by rechargeable batteries;

[0314] (d) A pump powered by a rechargeable battery that generates negative pressure; and

[0315] (e) The motor that drives the pump;

[0316] (f) Shell;

[0317] The control unit also includes an airflow block configured to transfer suction from the pump to the suction or air port on the control unit and further configured to attenuate the sound reaching the housing from the pump and / or motor.

[0318] Feature 10: Soundproof valve

[0319] We can summarize it as follows:

[0320] A control unit for generating negative pressure for a breast pump system, the control unit comprising:

[0321] (a) Rechargeable battery;

[0322] (b) A charging circuit that controls the charging of a rechargeable battery;

[0323] (c) Control electronic devices powered by rechargeable batteries;

[0324] (d) A pump powered by a rechargeable battery that generates negative pressure; and

[0325] (e) The motor that drives the pump;

[0326] Furthermore, the control unit also includes a soundproof valve, which is configured to allow air to enter and exit the control unit in a manner sufficient to balance the pressure between the inside and outside of the control unit, while minimizing the noise emitted from the control unit from the pump and / or motor.

[0327] Feature 11: Solenoid Foam Cap

[0328] We can summarize it as follows:

[0329] A control unit for generating negative pressure for a breast pump system, the control unit comprising:

[0330] (a) Rechargeable battery;

[0331] (b) A charging circuit that controls the charging of a rechargeable battery;

[0332] (c) Control electronic devices powered by rechargeable batteries;

[0333] (d) A pump powered by a rechargeable battery that generates negative pressure; and

[0334] (e) The motor that drives the pump;

[0335] (f) A solenoid valve used to control the generated negative air pressure;

[0336] Furthermore, the control unit also includes a cap or other structure configured to reduce the velocity of air entering the solenoid valve when the solenoid valve is opened to ambient air pressure.

[0337] D. User Experience Innovation: Product Operation

[0338] Feature 12: Multifunctional stand

[0339] We can summarize it as follows:

[0340] A control unit for generating negative pressure for a breast pump system, the control unit comprising:

[0341] (a) Rechargeable battery;

[0342] (b) A charging circuit that controls the charging of a rechargeable battery;

[0343] (c) Control electronic devices powered by rechargeable batteries;

[0344] (d) A pump powered by a rechargeable battery that generates negative pressure; and

[0345] (e) The motor that drives the pump;

[0346] Furthermore, the control unit also includes a detachable multi-functional bracket configured to attach to the control unit in at least two different locations, allowing the control unit to be held in an upright / vertical or longitudinal / lateral mode.

[0347] Feature 13: Management Function

[0348] We can summarize it as follows:

[0349] A control unit for generating negative pressure for a breast pump system, the control unit comprising:

[0350] (a) Rechargeable battery;

[0351] (b) A charging circuit that controls the charging of a rechargeable battery;

[0352] (c) Control electronic devices powered by rechargeable batteries;

[0353] (d) A pump powered by a rechargeable battery that generates negative pressure; and

[0354] (e) The motor that drives the pump;

[0355] Furthermore, the control unit further includes or is detachably attached to a tube management structure, which is configured such that the air tube to be attached to the control unit can be wound around the tube management structure.

[0356] The following are universally applicable optional features that can be combined with any one or more of the features mentioned above and can be combined with each other:

[0357] Breast bra

[0358] • Breast bras are rigid or semi-rigid.

[0359] • The breast shield consists of breast wings and a nipple channel; the nipple channel is configured to receive the nipple.

[0360] • Breast bras come in different sizes, each constructed to fit onto the same outer shell.

[0361] • When a breast bra is placed on the breast, different sizes of breast bras provide different spacing between the nipple and the sidewalls of the nipple canal.

[0362] • The breast shield integrates the breast wings and nipple passage into a single, one-piece product without any connecting joints.

[0363] • The nipple passage includes a milk duct through which expressed breast milk flows into the milk collector via a check valve.

[0364] • The breast shield includes a diaphragm shell, the sides of which are parallel to the nipple canal.

[0365] • The diaphragm housing includes pores that can transmit negative pressure to the nipple channel.

[0366] • The air pump chamber is a basically annular chamber with walls parallel to the long axis or central axis of the nipple channel, and these parallel walls are located above the area of ​​the nipple channel that is subjected to negative air pressure during use.

[0367] • The diaphragm shell has a generally cylindrical outer wall that is generally parallel to the nipple channel and a generally cylindrical inner wall that is generally parallel to the nipple channel.

[0368] • The diaphragm housing has a front wall at the end that forms the nipple channel.

[0369] • The diaphragm housing has an annular rear wall connecting the outer and inner side walls, and this annular rear wall is located above the area of ​​the nipple channel that is subjected to negative pressure during use.

[0370] • The diaphragm moves within the air pump chamber, which is formed on one side by a diaphragm housing and on the other side by a diaphragm cover. The diaphragm housing has walls parallel to the long axis or central axis of the nipple channel.

[0371] The breast shield and diaphragm storage section are integrated into a single molded part.

[0372] • The breast shield includes a removable peripheral seal that provides an airtight seal between the outer edge of the breast shield and the outer shell.

[0373] • Breast bras are made of transparent or optically clear, dishwasher-safe polypropylene, polycarbonate, or copolyester (such as Tritan). TM ) breast bra.

[0374] shell

[0375] • The outer shell is rigid.

[0376] • The outer shell can be detachably attached, fitted, or locked to the breast shield, thus providing the back surface that comes into contact with breast milk.

[0377] • The outer shell can be attached to the breast bra with a single push.

[0378] • The outer shell is secured to the breast bra using magnets.

[0379] • The outer casing includes air openings or vents to maintain atmospheric pressure inside the breast milk collector.

[0380] • The outer shell can be removed directly from the breast bra during normal use or disassembly.

[0381] • The outer shell, along with a flexible diaphragm that can be permanently or detachably attached to it, can be removed from the breast bra.

[0382] • The outer shell is an integral part of the breast bra.

[0383] • The outer casing includes a diaphragm cover located above the diaphragm.

[0384] • The outer shell and the diaphragm are integrated.

[0385] • The outer casing includes a pouring opening that can be closed for transporting the breast milk collector.

[0386] • The outer shell has a curved front surface to fit inside the bra and contact the inner surface of the bra.

[0387] • The casing is made of transparent or optically transparent polypropylene, polycarbonate, or copolyester (e.g., Tritan) that is safe to wash in a dishwasher. TM ) shell.

[0388] • The outer shell is a separate breast milk collector, so the breast shield does not provide a surface that comes into contact with breast milk.

[0389] diaphragm

[0390] • The diaphragm is elastic and can deform to generate negative pressure.

[0391] The diaphragm does not have enough elasticity to deform and create negative pressure; it is only used to prevent breast milk from passing through the diaphragm and filling the air line or reaching the motor.

[0392] • The diaphragm is essentially rigid and is used only to prevent breast milk from passing through the diaphragm and filling the air lines or reaching the motor.

[0393] • The septum consists of an inner wall and an outer wall that are substantially parallel to the central axis of the nipple canal.

[0394] • The diaphragm consists of an inner wall and an outer wall that are substantially parallel to the central axis of the nipple channel and are substantially cylindrical.

[0395] • Under negative pressure, the diaphragm moves towards the end or tip of the nipple passage through the breast milk opening.

[0396] The diaphragm includes a portion that is substantially parallel to the central axis of the nipple channel and a portion that is substantially perpendicular to the central axis of the nipple channel.

[0397] • The diaphragm is shaped to be flush with the diaphragm shell, which has a generally cylindrical outer wall that is generally parallel to the nipple channel and a generally cylindrical concentric inner wall that is generally parallel to the nipple channel.

[0398] • When the air pump subsystem applies negative pressure to the diaphragm, the diaphragm bends and transmits negative pressure to pull the breast and / or nipple toward the breast shield, thereby expressing breast milk.

[0399] • When the collector is placed on the breast, the position of the septum will not obstruct the mother's observation of most of the nipple canal;

[0400] • The diaphragm is molded into part of the housing or otherwise attached to the housing.

[0401] • The outer shell and diaphragm are formed or combined to form a single product.

[0402] • The septum includes a portion that is substantially parallel to the central axis of the nipple canal.

[0403] • The diaphragm is a single flexible membrane, shaped as a generally cylindrical inner and outer wall that is generally parallel to the central axis of the nipple channel.

[0404] • The diaphragm includes the portion located above the end of the nipple canal, facing away from the breast.

[0405] • The diaphragm is detachably attached to the housing.

[0406] • The diaphragm can be removed from the outer casing for cleaning.

[0407] • The diaphragm is constructed to self-seal into the diaphragm support as part of the breast shield under negative pressure.

[0408] • A diaphragm is a one-piece product without any holes or openings.

[0409] • The diaphragm is permanently fixed to the outer shell.

[0410] • The diaphragm is a single flexible membrane formed to include a generally cylindrical inner and outer wall that are generally parallel to the central axis of the nipple channel, an annular wall connecting the generally cylindrical inner and outer walls, and an end wall located above the end of the nipple channel.

[0411] Diaphragm cover

[0412] • The diaphragm cover is removable.

[0413] • The diaphragm cover forms the front of the outer shell.

[0414] • The diaphragm cover includes an air port configured to deliver air pressure to the breast milk collector.

[0415] • The diaphragm cover is configured to be installed or locked onto the housing by a single push action.

[0416] • The diaphragm cover includes grooves or a structure configured to be gripped by the fingers of one hand.

[0417] The diaphragm cover includes a pair of recesses configured to allow the cover to be grasped with one hand and removed from the housing, as well as installed into the housing.

[0418] • The diaphragm cover can be rotated within the housing to adjust the position of the air port on the diaphragm cover.

[0419] • The diaphragm cover includes the tracheal passage.

[0420] • The diaphragm cover includes a flat portion, allowing the breast milk collector to be placed on a flat surface located on this flat portion.

[0421] • The diaphragm cover is shaped to fit inside the bra.

[0422] • The diaphragm cover is made of transparent or optically clear polypropylene, polycarbonate, or copolyester (e.g., Tritan) that is safe to wash in a dishwasher. TM ) diaphragm cover.

[0423] The whole system

[0424] • This system is a closed system.

[0425] The system has a capacity of approximately 5 fluid ounces (148 ml).

[0426] • The width of the breast milk collector along the central axis of the nipple canal is approximately 5.7 cm.

[0427] • Each breast milk collector can be worn inside a bra during use, for example, it is designed to be worn inside a maternity bra.

[0428] • The noise level emitted by the system at maximum power during motor operation should be less than 50 dB, preferably less than 45 dB.

[0429] Control Unit

[0430] • The control unit is configured to control the suction force delivering the breast milk to one or two wearable breast milk collectors.

[0431] The control unit includes an air pump subsystem configured to generate negative pressure and transmit it to the wearable breast milk collector.

[0432] • The control unit does not include an air pump subsystem, but controls an external air pump.

[0433] The air pump subsystem is fixed between the silencer motor bracket and the airflow block, each of which is configured to absorb vibrations from the pump unit.

[0434] • The control unit includes a wireless data communication system powered by a rechargeable battery;

[0435] The control unit includes one or more buttons configured to control at least one wearable collector.

[0436] The control unit includes visual and / or tactile indicators that show whether breast milk is flowing into the collector.

[0437] The control unit includes visual and / or tactile indicators that indicate the activated suction curve or pattern.

[0438] The control unit includes visual and / or tactile indicators that indicate the status of the rechargeable battery.

[0439] • The control unit includes a USB charging socket that is connected to the power charging circuit;

[0440] • The multi-functional bracket is an O-ring.

[0441] airflow block

[0442] • The airflow block is configured to transfer air or suction from the pump unit and absorb vibrations from the pump unit.

[0443] • The airflow block is made of compression-molded silicone resin.

[0444] • The airflow block is directly connected to the outlet of the air pump subsystem.

[0445] • The airflow block is located near the solenoid valve.

[0446] • The airflow block is a one-piece product.

[0447] • The control unit is sealed to further attenuate the sound.

[0448] The control unit includes a housing with a top and a bottom.

[0449] The bottom and top are sealed together using a sealing perimeter.

[0450] • The airflow block is integrated with a portion of the sealing periphery.

[0451] • The airflow block is connected to the air port or hole of the tube used to deliver air to the wearable breast milk collector.

[0452] Soundproof valve

[0453] • The soundproof valve is configured to regulate the pressure inside the control unit, keeping the control unit at ambient pressure, while reducing the noise from the pump unit emanating from inside the control unit.

[0454] • The soundproof valve is located at the bottom of the control unit.

[0455] The soundproof valve includes a small incision that allows it to deform under pressure.

[0456] The soundproof valve is made of silicone resin.

[0457] foam cap

[0458] The solenoid foam cap is configured to reduce the air velocity entering the solenoid valve when the solenoid valve opens to ambient air pressure, thereby reducing the noise of air entering the solenoid valve.

[0459] • The solenoid foam cap is a one-piece product made of plastic.

[0460] • The foam cap includes one or more small openings or holes.

[0461] The control unit also includes two mufflers (or silencers), one of which is connected to the solenoid valve and the other is connected to the motor.

[0462] Precautions

[0463] It should be understood that the above-described solutions are merely for illustrating the application of the principles of the present invention. Many modifications and alternatives can be devised without departing from the spirit and scope of the invention. Although the invention has been fully described above with regard to particularity and detail in conjunction with the accompanying drawings and in conjunction with examples which are presently considered to be the most practical and preferred embodiments of the invention, it will be apparent to those skilled in the art that many modifications can be made without departing from the principles and concepts of the invention set forth herein.

[0464] This patent document contains copyrighted material in parts of its disclosure. The copyright holder does not object to any reproduction of the patent document or its disclosures, as shown in the Patent and Trademark Office's patent documents or records, but retains all copyrights.

Claims

1. A breast pump system comprising at least one wearable breast milk collector connected via an air line to a combined external air pump and control unit; and wherein each of the breast milk collectors comprises: (a) A breast shield consisting of breast wings and nipple canals; (b) A flexible diaphragm configured to prevent breast milk from reaching the external air pump: (c) A housing configured to be detachably connected to the breast shield such that the breast shield and the housing, when connected together, form a container for collecting breast milk, and the front surface of the housing includes a curved portion; as well as (d) A diaphragm cover, the diaphragm cover being configured to be fixed to the diaphragm in use, forming part of the front surface or forward portion of the housing, and including an air port connected to the air line; The diaphragm cover can be removed from the housing or rotated within the housing to adjust the position of the air port.

2. The breast pump system of any preceding claim, wherein, The diaphragm cover includes a pair of recesses configured to allow the cover to be grasped and removed from the housing with one hand, and to allow the cover to be installed into the housing with one hand.

3. The breast pump system of any preceding claim, wherein, The diaphragm cover includes a flat portion, allowing the breast milk collector to rest on a flat surface located on the flat portion.

4. The breast pump system of any preceding claim, wherein, The diaphragm cover is shaped to fit inside a bra.

5. The breast pump system of any preceding claim, wherein, The diaphragm cover is made of transparent or optically transparent polypropylene, polycarbonate, or copolyester material that is safe to wash in a dishwasher.

6. The breast pump system of any preceding claim, wherein, The housing comprises transparent or optically transparent polypropylene, polycarbonate, or copolyester that is safe to wash in a dishwasher.

7. The breast pump system of any preceding claim, wherein, The breast shield is a transparent or optically transparent breast shield made of polypropylene, polycarbonate, or copolyester that is safe to wash in a dishwasher.

8. The breast pump system of any preceding claim, wherein, The breast shield includes a diaphragm housing having a side parallel to the nipple canal.

9. The breast pump system of claim 8, wherein, The diaphragm housing has a generally cylindrical outer wall that is generally parallel to the nipple channel and a generally cylindrical inner wall that is generally parallel to the nipple channel.

10. The breast pump system according to claim 8, wherein, The diaphragm housing has a front wall forming the end of the nipple channel.

11. The breast pump system according to claim 9, wherein, The diaphragm housing has a front wall forming the end of the nipple channel.

12. The breast pump system according to any one of claims 9 or 11, wherein, The diaphragm housing has an annular rear wall that connects the outer side wall and the inner side wall and is located in the area of ​​the nipple channel that is subjected to negative air pressure during use. The entire diaphragm housing is positioned toward the end of the nipple channel so that the user can clearly observe the position of the nipple when placing the breast shield or the outer shell on the breast.

13. The breast pump system according to any one of claims 8-12, wherein, The diaphragm is flexible and moves within the air pump chamber, which (i) is formed on one side by the diaphragm housing and the flexible diaphragm includes walls parallel to the long axis or central axis of the nipple channel and (ii) is formed on the other side by the diaphragm cover.

14. The breast pump system according to any one of claims 8-13, wherein, The breast shield and the diaphragm storage part are integrally formed as a single molded part.

15. The breast pump system according to any of the preceding claims, wherein, The housing is a transparent or optically transparent polypropylene, polycarbonate, or copolyester housing that can be safely cleaned in a dishwasher.

16. The breast pump system according to any of the preceding claims, wherein, The diaphragm is located at the end of the nipple canal and includes a portion extending over the end of the nipple canal, so that the mother does not have any obstruction from observing most of the nipple canal when placing the collector on her breast.

17. The breast pump system according to any of the preceding claims, wherein, The diaphragm is a single flexible membrane formed as a generally cylindrical inner wall and an outer wall that are generally parallel to the central axis of the nipple channel.

18. The breast pump system according to any of the preceding claims, wherein, The diaphragm is shaped to be flush with the diaphragm housing, which has a generally cylindrical outer sidewall that is generally parallel to the nipple channel and a generally cylindrical concentric inner sidewall that is generally parallel to the nipple channel.

19. The breast pump system according to any of the preceding claims, wherein, The diaphragm includes a portion that extends generally parallel to the central axis of the nipple canal.

20. The breast pump system according to any of the preceding claims, wherein, The diaphragm includes a portion located at the end of the nipple canal opposite to the breast.

21. The breast pump system according to any of the preceding claims, wherein, The diaphragm is a single flexible membrane formed comprising a generally cylindrical inner and outer wall that are generally parallel to the central axis of the nipple channel, an annular wall connecting the generally cylindrical inner and outer walls, and an end wall located at the end of the nipple channel.

22. The breast pump system according to any of the preceding claims, wherein, The control unit is configured to control the suction delivered to at least one wearable breast milk collector, and the control unit includes an air pump subsystem configured to generate negative pressure and deliver negative pressure to the wearable breast milk collector.

23. The breast pump system according to claim 22, wherein, The air pump subsystem is held in place between two blocks, each of which is configured to absorb vibrations from the pump unit.

24. The breast pump system according to any of the preceding claims, further comprising an airflow block in the control unit, the airflow block being configured to deliver air or suction from the pump unit and absorb vibrations from the pump unit.

25. The breast pump system according to any of the preceding claims, wherein, The soundproof valve in the control unit is configured to regulate the pressure inside the control unit so that the inside of the control unit is maintained at ambient pressure, and the soundproof valve is configured to attenuate noise from the pump unit emanating from inside the control unit.

26. The breast pump system according to claim 25, wherein, The soundproof valve includes small slits configured to deform under pressure.

27. The breast pump system according to any of the preceding claims, wherein, The solenoid foam cap in the control unit is configured to reduce the velocity of air entering the solenoid valve when the solenoid valve is opened to ambient air pressure, thereby reducing the noise of air entering the solenoid valve.

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