CN117281969A - breast pump - Google Patents

Abstract

The present application provides a breast pump. The breast pump may comprise a first receiving portion for receiving a breast, a suction diaphragm and a second receiving portion. The suction diaphragm is configured to at least partially define a deformable sealing cavity, and the second receptacle is configured to at least partially receive the deformable sealing cavity. The deformable sealing cavity is in fluid communication with the negative pressure pump and is configured to contract under the action of the negative pressure pump. The first receptacle may be provided with a first opening, wherein the second receptacle is in fluid communication with the first receptacle through the first opening. When the deformable sealing cavity is contracted, a negative pressure space is formed in the second accommodating portion to transmit negative pressure to the first accommodating portion through the first opening. The breast expresses milk under negative pressure. The deformable sealing chamber is able to completely avoid milk flowing to the negative pressure pump.

Description

Breast pump

Technical Field

The present application relates to breast pumps, and more particularly to an integrated breast pump.

Background

A breast pump is a device for expressing breast milk accumulated in the breast, and when an infant cannot directly suck the breast milk, the breast pump is required to express the breast milk accumulated in the breast. The breast pump not only can liberate females, so that females still can temporarily break away from infants to participate in social life and work in lactation, but also can help infants with difficult sucking to eat breast milk, and can effectively observe the appetite of infants, so that the infants are adapted to milk bottles.

In order to be convenient for women to use, a breast pump with simple structure, convenient disassembly and cleaning and convenient carrying is needed.

Disclosure of Invention

The utility model aims at providing a breast pump, this breast pump simple structure, be convenient for dismouting washing, convenient to carry.

To achieve the above object, the present application provides a breast pump. The breast pump may comprise a first receiving portion for receiving a breast, a suction diaphragm and a second receiving portion. The suction diaphragm is configured to at least partially define a deformable sealing cavity, and the second receptacle is configured to at least partially receive the deformable sealing cavity. The deformable sealing cavity is in fluid communication with the negative pressure pump and is configured to contract under the action of the negative pressure pump. The first receptacle may be provided with a first opening, wherein the second receptacle is in fluid communication with the first receptacle through the first opening. When the deformable sealing cavity is contracted, a negative pressure space is formed in the second accommodating portion to transmit negative pressure to the first accommodating portion through the first opening. The breast expresses milk under negative pressure. The deformable sealing chamber is able to completely avoid milk flowing to the negative pressure pump.

Additional features and advantages of the application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and, together with the description, do not limit the application. In the drawings:

FIG. 1 shows a cross-sectional view of a breast pump according to an embodiment of the present application;

FIG. 2 illustrates a cross-sectional view of a host assembly according to an embodiment of the present application;

FIG. 3 shows a cross-sectional view of a portion of the structure of a housing, a first chamber, a negative pressure compartment assembly according to an embodiment of the present application;

FIG. 4 shows a schematic view of the cap, first cavity, retainer and suction diaphragm integrally formed;

FIG. 5 illustrates a cross-sectional view of a sub-atmospheric pressure hatch and container assembly according to an embodiment of the present application;

FIG. 6 illustrates a top view of a sub-atmospheric pressure hatch and container assembly according to an embodiment of the present application;

FIG. 7 shows a schematic view of an integrated negative pressure hatch and check valve;

FIG. 8 shows a schematic assembly of a negative pressure cartridge assembly and a one-way valve; and

FIG. 9 shows a front view of a breast pump according to an embodiment of the present application, wherein part of the housing is transparent for ease of illustration.

Reference numerals illustrate:

100 breast pumps; 1 a host assembly; 10 a housing; 11 negative pressure pump; 12 electromagnetic valves; 13 three-way pipe; 14 retractable positioning beads; 111 connecting pipes; 2 a negative pressure cabin assembly; a 21 cover body; 22 holding parts; 23 suction diaphragm; 211 a first receiving portion; 212 a first opening; 213 a second opening; 221 a first cavity; 222 a first channel; 223 second channel; 224 a first boss; 231 deformable sealing the cavity; 232 a first extension; 233 an edge of a suction diaphragm; 3 a container assembly; 31 a second receiving portion; 32 one-way valve; 33 milk collection containers; 321 a support; 322 engaging portions; 311 grooves; 312 a first via; 313 exhaust slots; 314 negative pressure hatch; 331 second boss

Detailed Description

The following detailed description of specific embodiments of the present application refers to the accompanying drawings. It should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present patent and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present patent. In the description herein, it should be noted that the terms "mounted," "connected," "coupled," and "disposed" are to be construed broadly, as they may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example, unless otherwise specifically indicated and defined. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in the description of the present application, the terms "first," "second," and the like are merely used for convenience in describing the various elements and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1-9, the present application provides a breast pump 100, which breast pump 100 may include a main body assembly 1, a first receiving portion 211, a negative pressure cartridge assembly 2, and a container assembly 3.

As shown in fig. 2 and 9, the main unit assembly 1 includes a housing 10, and a negative pressure pump 11 may be provided in the housing 10. The negative pressure pump 11 is used for generating negative pressure, and the magnitude and frequency of the negative pressure generated by the negative pressure pump 11 are controllable. The magnitude and frequency of the negative pressure generated by the negative pressure pump 11 can be controlled by a controller according to a preset program.

The first receiving portion 211 serves to at least partially receive a breast. The first receiving portion 211 may be provided with a first opening 212. As shown in fig. 3, the first receiving portion 211 may include a cover 21 and a first cavity 221. The first opening 212 may be provided on the cover 21 or the first chamber 221, wherein the first passage 222 may be formed to extend from the first opening 212 to the outside of the first receiving portion 211. Fig. 3 shows a schematic view of the first opening 212 arranged on the first cavity 221.

The cover 21 forms a funnel-shaped cover for at least partially receiving a breast. The cover 21 may be provided as a single-layer cover, which may be formed of hard glue. The cover 21 may also be provided as a double-layer cover in which the outer cover may be formed of hard rubber as a support and the inner cover may be formed of soft rubber to better fit the breast, wherein the outer cover and the inner cover may be integrally formed and fused together. The hard glue can be, for example, TRITAN, PPSU, or PP plastic. The soft rubber can be, for example, an elastomer material such as silica gel, TPE, TPU and the like.

The first cavity 221 is for at least partially receiving a nipple. The first cavity 221 includes a second opening 213 and the first opening 212. The first cavity 221 is connected to the cover 21 through the second opening 213. The second opening 213 is connected to the bottom through hole of the funnel-shaped cover, which connection may be formed, for example, by integral molding, alternatively, by means of tight fitting, ultrasonic welding, etc. The second opening 213 may be the same size or substantially the same size as the bottom through hole of the funnel-shaped housing.

The first opening 212 extends outside the first cavity 221 to form a first channel 222. The first cavity 221 and the first channel 222 form a curved channel. The first opening 212 may be located at any place of the sidewall of the first cavity 221. However, in order to enable a uniform application of negative pressure to the breast through the first cavity, it is preferred that the distal end of the first opening 212, which is located at the second opening 213, e.g. the second opening 213 and the first opening 212 may preferably be located at opposite ends of the first cavity 221. The center line of the first channel 222 and the center line of the first cavity 221 may be at any angle. The center line of the first passage 222 and the center line of the first chamber 221 may be perpendicular, and accordingly, the center line of the second opening 213 and the center line of the first opening 212 may be perpendicular to facilitate the smooth flow of milk into the first passage 222. The first channel 222 communicates with the first cavity 221 and the milk collection container 33, so that milk can flow into the milk collection container 33 through the first channel 222. The negative pressure generated by the negative pressure pump 11 acts on the breast through the first passage 222 and the first chamber 221, and milk secreted from the breast flows from the first chamber 221 to the first passage 222.

The negative pressure compartment assembly 2 may include a suction diaphragm 23 and a second receiving portion 31. The suction diaphragm 23 is used to at least partially define a deformable sealing cavity 231. The second receiving portion 31 may at least partially receive the deformable sealing cavity 231.

The second receiving portion 31 is in fluid communication with the first receiving portion 211 through the first opening 212. When the deformable sealing chamber 231 is contracted, a negative pressure space is formed in the second receiving portion 31. The negative pressure space is at least partially defined by the outer wall of the suction diaphragm 23 and the inner wall of the second receiving portion 31. The negative pressure space transmits negative pressure to the first accommodating portion 211 through the first opening 212. Further, the milk in the first accommodating part 211 may be guided out into the second accommodating part 31 through the first opening 212.

The first passage 222 formed extending from the first opening 212 may be at least partially received within the second receiving portion 31 such that the second receiving portion 31 is in fluid communication with the first receiving portion 211 through the first passage 222. The negative pressure space transmits negative pressure to the first accommodating part 211 through the first passage 222. Further, the milk in the first accommodating part 211 can be guided out into the second accommodating part 31 through the first channel 222.

During the negative pressure output of the negative pressure pump 11, the negative pressure pump 11 sucks air inside the deformable sealing chamber 231, so that the deformable sealing chamber 231 contracts, thereby forming a negative pressure space between the outer wall of the deformable sealing chamber 231 and the inner wall of the second accommodation portion 31. The negative pressure in the negative pressure space acts on the breast through the curved channel (formed by the first channel 222 and the first cavity 221) so that the breast secretes milk. Milk flows into the second receiving portion 31 through the curved passage.

The deformable sealing chamber 231 can completely prevent milk in the second accommodating part 31 from entering the negative pressure pump 11. In addition, the first passage 222 and the second receiving portion 31 are shared by milk and negative pressure, so that the number of components of the breast pump can be reduced, thereby helping to reduce the volume of the breast pump and facilitating the carrying of the breast pump.

The second accommodating portion 31 may be an arbitrary-shaped accommodating portion capable of forming a negative pressure space in cooperation with the deformable seal chamber 231.

The second receiving portion 31 may include a holding portion 22 and a negative pressure hatch 314. The holding portion 22 can cover at least the opening of the negative pressure hatch 314 to form the second accommodating portion 31. The first passage 222 may be at least partially received within the negative pressure hatch 314 through the retainer 22.

The suction diaphragm 31 itself may form the deformable sealing cavity 231, or the suction diaphragm 23 may be sleeved on the holding portion 22, and cooperate with the holding portion 22 to form the deformable sealing cavity 231.

The suction diaphragm 23 may form a deformable sealing cavity 231 around the outer wall of the first channel 222. Alternatively, the suction diaphragm 23 may also be sleeved on other parts of the holding portion 22 at a position adjacent to the first passage 222 to form the deformable seal cavity 231. The suction diaphragm 23 may be formed of an elastic material to facilitate contraction and recovery of the deformable sealing chamber. The elastic material may be, for example, an elastomer material such as silica gel, TPE, TPU, etc.

The holding portion 22 may be provided with a second passage 223. The centerline of the second channel 223 may be parallel to the centerline of the first channel 222. The deformable sealing cavity 231 is in fluid communication with the negative pressure pump through the second passage 223. The second passage 223 is connected to the negative pressure pump 11 through the connection pipe 111. The second pipe 223 may be hermetically connected to the connection pipe 111 through a tee pipe, and a third end of the tee pipe may be connected to a solenoid valve. During the negative pressure output from the negative pressure pump 11, the solenoid valve is controlled to close, preventing air leakage. During the period when the negative pressure pump 11 stops outputting negative pressure, the solenoid valve is controlled to open, and outside air flows into the deformable sealing chamber 231 through the solenoid valve, causing the deformable sealing chamber 231 to return to its original state.

The outer side edge of the deformable sealing cavity 231 may be snapped onto the holding portion 22, for example, a first protrusion 224 may be provided on the holding portion 22 around the first channel 222, and the outer side edge of the deformable sealing cavity 231 may be sealingly fixed to the first protrusion 224. For example, the outer edge of the deformable sealing cavity 231 may be sealingly snapped, glued or ultrasonically welded onto the first boss 224. By sealing the deformable sealing chamber 231, the effect of reducing negative pressure formation by avoiding air leakage when the deformable sealing chamber 231 is forced to contract can be avoided. On the other hand, the deformable sealing chamber 231 is in fluid communication with the negative pressure pump 11 through the second passage 223 and the connection pipe 111, and by sealing the deformable sealing chamber 231, milk flowing into the negative pressure space can be prevented from entering the deformable sealing chamber 231 and further entering the connection pipe 111 and the negative pressure pump 11. The deformable sealing cavity 231 may be a ring cavity, a square cavity, or other cavity of various shapes. The first boss 224 disposed around the circumference of the first passage 222 may have a predetermined distance from the first passage 222, which enables the upper and lower diameters of the formed deformable sealing chamber 231 to be substantially uniform.

The first cavity 221 and the holding portion 22 may be formed of hard rubber. The hard glue can be, for example, TRITAN, PPSU, or PP plastic.

In the above, although the first accommodation portion 211 and the negative pressure compartment assembly 2 are described as two components, it is not limited thereto, and the first accommodation portion 211 may be included in the negative pressure compartment assembly 2. In addition, the second receiving portion 31 is not limited to be included in the negative pressure compartment assembly 2, and may be included in the container assembly 3.

As shown in fig. 9, the host assembly 1 may further include a solenoid valve 12 and a tee 13 disposed within the housing 10. The negative pressure pump 11, the solenoid valve 12 and the negative pressure cabin assembly 2 may be connected in a sealing manner by a three-way pipe 13. The first end of the tee pipe 13 is in sealing connection with the negative pressure pump 11 through a connecting pipeline 111, the second end is in sealing connection with a second channel 223 of the negative pressure cabin assembly 2, and the third end is in sealing connection with the electromagnetic valve 12. During the negative pressure output from the negative pressure pump 11, the solenoid valve 12 is controlled to be closed, preventing air leakage. During the period when the negative pressure pump 11 stops outputting negative pressure, the solenoid valve 12 is controlled to open, and outside air flows into the deformable sealing chamber 231 through the solenoid valve 12, so that the contracted deformable sealing chamber 231 is restored.

The first accommodating portion 211, the holding portion 22, and the suction diaphragm 23 may be integrally formed.

As shown in fig. 4, the cover 21, the first chamber 221, the holding portion 22, and the suction diaphragm 23 may be integrally formed, for example, by injection molding. During the integral molding, the suction diaphragm 23 is molded around the periphery of the first channel 222 with soft plastic to form a horn-like structure. The rim of the horn-like structure is turned up to snap over the retainer 22 to form a deformable sealing cavity 231. During cleaning, the edge of the suction diaphragm 23 is detached from the holding portion 22, so that the suction diaphragm 23 can be cleaned, and drying of the cleaned suction diaphragm 23 is facilitated. A first protrusion 224 may be disposed on the holding portion 22 around the first channel 222, and an edge 233 of the suction diaphragm 23 may be sealingly fixed to the first protrusion 224, for example, the edge 233 of the suction diaphragm 23 may be clamped to the first protrusion 224, or may be bonded or ultrasonically welded.

The integral molding of the cover 21, the first chamber 221, the holding portion 22, and the suction diaphragm 23 has the following advantages: disassembly and assembly among the components of the cover body 21, the first cavity 221, the retaining part 22 and the suction diaphragm 23 are avoided, so that running-in loss is reduced, and the service life is prolonged; the assembly and disassembly between the integrally formed part and the host assembly are convenient, the cleaning of the outer part of the integrally formed part is convenient, and the number of parts needing cleaning is less; the smooth surface is formed through integral molding, so that the possibility of dirt collection is reduced.

The cover 21, the first chamber 221, the holding portion 22, and the suction diaphragm 23 may be molded separately and assembled to form the negative pressure cartridge assembly 2. Alternatively, the cover 21, the first chamber 221 and the holding portion 22 may be integrally formed and then assembled with the suction diaphragm. Alternatively, the first chamber 221, the holding portion 22, and the suction diaphragm 23 may be integrally formed and then assembled with the cover 21. Compared with assembly, the integrated forming avoids the disassembly and assembly among the cover body 21, the holding part 22 and the suction diaphragm 23, thereby reducing running-in loss and prolonging the service life.

As shown in fig. 5 and 6, the negative pressure hatch 314 is provided with a recess 311 for accommodating the deformable sealing chamber 231. The bottom of the groove 311 is provided with a first through hole 312 connected with the check valve 32. The shape of the recess 311 may conform to the shape of the deformable sealing cavity 231.

The negative pressure hatch 314 is detachably connected to the holding part 22, and the negative pressure hatch 314 may preferably be sealingly connected to the holding part 22. The negative pressure hatch 314 may be in sealing connection with the deformable sealing cavity 231, thereby achieving a sealing connection with the holder 22.

The inner wall of the groove 311 of the negative pressure hatch 314 may be provided with a first recess (not shown), the outer wall of the deformable sealing cavity 231 may be provided with a first extension 232, and the first extension 232 and the recess are in abutting contact. The first recess may be one or more turns of recess provided along the inner wall of the recess 311, and accordingly the first extension 232 may be one or more turns of extension provided along the outer wall of the deformable sealing chamber. Alternatively, the first recess may be one or more segments disposed along the inner wall of the groove 311, and accordingly, the first extension 232 may be one or more segments disposed along the outer wall of the deformable sealing chamber.

Alternatively, the negative pressure hatch 314 may be sealingly connected to the deformable sealing cavity 231 by means of extrusion, thereby achieving a sealed connection to the holder 22. In particular, a first extension 232 may be provided on the outer wall of the deformable sealing chamber 231, the first extension 232 being flexible, so that the vacuum hatch 314 can be connected in a sealing manner with the holder 22 in a pressing manner. The first extension 232 may be one or more turns of extension disposed along the outer wall of the deformable sealing chamber. Alternatively, the first extension 232 may be one or more segments disposed along the outer wall of the deformable sealing chamber.

The negative pressure cartridge assembly 2 may also include a one-way valve 32. The check valve 32 is connected to a vacuum hatch 314 via a first through hole 312. The negative pressure hatch 314 may be formed of hard glue and the check valve 32 may be formed of soft glue. The soft gel may be, for example, a silicone gel, and the check valve 32 is a check silicone valve. The shape of the check valve 32 may be arbitrary, and may be, for example, vertical or flat. The check valve 32 may be detachably coupled to a first through hole 312 of the negative pressure hatch 314, and the first through hole 312 may be disposed to extend a distance from the recess 311 so as to be coupled by the check valve. In the alternative, as shown in fig. 7, the check valve 32 may be integrally formed with the negative pressure hatch 314. When integrally formed, the groove 311 surrounding the negative pressure hatch 314 may form a layer of soft gel that is integral with the check valve 31. In case the check valve 32 is flat, the check valve may include a supporting portion 321 and an engaging portion 322. The supporting portion 321 is nested on the outside of the first through hole 312, and the engaging portion 322 is connected to the supporting portion 321 and disposed opposite to the first through hole 312.

During the negative pressure output of the negative pressure pump 11, the solenoid valve 12 is controlled to be closed, and the negative pressure pump 11 sucks air in the deformable sealing chamber 231 through the second passage 223, so that the deformable sealing chamber 231 contracts, thereby increasing the space between the outer wall of the deformable sealing chamber 231 and the negative pressure hatch 314 to generate negative pressure in the negative pressure space. The generated negative pressure can cause the engaging portion 322 to engage on the first through hole 312, so that the first through hole 312 is sealed. At the same time, the generated negative pressure acts on the breast through the curved channel (formed by the first channel 222 and the first cavity 221), so that the breast secretes milk. Milk flows into the negative pressure space through the curved channel. The closing of the one-way valve enables the negative pressure generated in the negative pressure space to be basically and completely acted on the breast so as to successfully express the milk.

During the period that the negative pressure pump 11 stops outputting negative pressure, the electromagnetic valve 12 is controlled to be opened, external air flows into the deformable sealing cavity 231 through the electromagnetic valve 12, so that the contracted deformable sealing cavity 231 is restored, no negative pressure exists in the negative pressure space, the suction part 322 is not sucked on the first through hole 312 any more, and a certain gap exists between the suction part and the first through hole, so that milk flows to the milk collecting container 33 through the one-way valve 32. The size of the engaging portion 322 may be substantially identical to the size of the first through hole 312 so that the first through hole 312 can be completely covered.

As shown in fig. 8, after the assembly of the negative pressure cartridge assembly 2 and the check valve 32, the deformable sealing chamber 231, the check valve 32, the first passage 222 and the first chamber 221 may form a negative pressure working chamber. Specifically, during the negative pressure output from the negative pressure pump 11, after the negative pressure output from the negative pressure pump 11 causes the deformable sealing chamber 231 to contract, the air pressure in the groove 311 is reduced to form a negative pressure, so that the check valve 32 is sucked. The negative pressure created acts on the breast through the curved channel (formed by the first channel 222 and the first cavity 221) so that the breast expresses milk. During the period when the negative pressure pump 11 stops outputting negative pressure, the shape of the deformable seal chamber 231 is restored, and the air pressure in the groove 311 is restored accordingly, and the check valve 32 is no longer in the suction state. The milk flows to the milk collection container 33 through the bent passage, the first through hole 312, and the check valve 32 by gravity.

The container assembly 3 comprises a milk collection container 33. The milk collection container 33 is provided with an opening, and the negative pressure hatch 314 and the one-way valve 32 are accommodated in the milk collection container 33 through the opening of the milk collection container 33. Milk flowing out through the one-way valve 32 flows into the milk collection container 33. The check valve 32 can ensure the air tightness in the milk collecting container 33, prevent the milk of the milk collecting container 33 from flowing back, and promote the use experience of users.

Optionally, the top edge of the negative pressure hatch 314 is provided with an outwardly extending extension that can be snapped onto the edge of the opening of the milk collection container 33, while the other part of the negative pressure hatch 314 is accommodated within the milk collection container 33. The opening of the milk collection container 33 may be a protruding opening at the upper end, wherein the opening may be, for example, a circular opening, a square opening, or any other polygonal opening, etc.

Further alternatively, the opening of the milk collection container 33 may be in sealing connection with the negative pressure hatch 314. In the case of a sealed connection, an air discharge groove 313 may be provided at the sealed connection so that air in the milk collection container 33 can be discharged, and the internal air pressure thereof is maintained to be identical to the external air pressure, thereby allowing milk to smoothly flow into the milk collection container 33. As shown in fig. 8, one or more vent grooves 313 may be provided on the layer of the soft gel formed around the groove 311 of the negative pressure compartment cover 314 during the process of integrally forming the second receiving part and the check valve. In case the opening of the milk collection container 33 is not in a sealed connection with the negative pressure hatch 314, the venting groove 313 may not be provided.

The vacuum hatch 314 is received at the opening of the milk collection container 33, so that the sealing connection of the vacuum hatch 314 to the holder 22 also achieves a sealing connection of the milk collection container 33 to the holder 22. In addition, the supporting action at the opening of the milk collection container 33 can promote the sealability between the negative pressure hatch 314 and the holding portion 22.

The milk collection container 33 is detachably connected to the main assembly 1.

Optionally, a positioning groove (not shown) may be arranged on the milk collection container 33, and a retractable positioning bead 14 may be arranged on the housing 10 of the host assembly 1. When the milk collecting container 33 is installed, the telescopic positioning beads 14 are clamped in the positioning grooves, so that the milk collecting container 33 is fixed. The number of retractable positioning beads 14 may be one or more, and correspondingly, the number of positioning grooves may be one or more. The milk collection container 33 can be detached by means of a forced detachment. Alternatively, the retractable beads 14 may be controlled by a key (not shown) to extend or retract, so that the mounting and dismounting of the milk collection container 33 may be controlled by the key.

Alternatively, one or more second recesses (not shown) may be arranged on the outer wall of the opening of the milk collection container 33, and correspondingly, one or more second extensions (not shown) capable of being inserted into said second recesses may be arranged on the housing of the main assembly 1. The milking vessel 33 may be mounted or dismounted by means of a rotation such that the second extension is inserted into or withdrawn from the second recess. The second recess may be formed on the second protrusion 331 on the outer wall of the opening of the milk collection container 33. Alternatively, the second recess may also be arranged on the housing of the main assembly 1, while the second extension may be arranged on the outer wall of the opening of the milk collection container 33. The one or more second recesses and the one or more second extensions may be disposed circumferentially.

The milk collection container 33 may be detachably connected to the host assembly 1 by one or both of the above, but the present application is not limited thereto, and the milk collection container 33 may be detachably connected to the host assembly 1 by other means. In some alternative embodiments, the milk collection container 33 may also be detachably connected to the negative pressure compartment assembly 2.

The bottom of the milk collection container 33 may be provided with a flat and standing surface on which it can stand. The shape of the milk collection container 33 may be any shape that can be formed in a bottle shape or any shape that is formed in accordance with the external appearance of the breast pump 100.

As shown in fig. 9, a touch panel or button may be provided on the housing 10 of the breast pump 100 for adjusting the operation mode, the negative pressure level, the operation frequency, and/or the time, wherein different operation modes may correspond to different negative pressure levels, operation frequencies, and times. The shell can also be provided with a display screen for displaying the working mode, the negative pressure, the working frequency, the time, the battery power and/or the like. A battery and controller may also be provided within the housing 10. The battery may be a rechargeable battery. The controller may control the solenoid valve 12 and the negative pressure pump 11. In case the breast pump 100 is started, or the operation mode is selected, the controller controls the solenoid valve 12 and the negative pressure pump 11 according to a preset program.

During the negative pressure generation of the negative pressure pump 11, the electromagnetic valve 12 is controlled to be closed, the negative pressure enters the deformable sealing cavity 231 through the second channel 223, the deformable sealing cavity 231 is contracted, the air pressure in the groove 311 is reduced to form negative pressure, the check valve 32 is sucked in, the formed negative pressure acts on the breast through the bent channel (formed by the first channel 222 and the first cavity 221), and the breast is used for expressing milk under the negative pressure.

During the time when the negative pressure pump 11 stops generating negative pressure, the solenoid valve 12 is controlled to open, and outside air flows into the deformable sealing chamber 231 through the solenoid valve 12, so that the contracted deformable sealing chamber 231 is restored. The air pressure in the recess 311 is then restored and the check valve 32 is no longer in the engaged state. Milk flows into the groove 311 from the bent channel under the action of gravity, flows into the one-way valve 32 from the groove 311, and flows out to the milk collecting container 33 through the one-way valve 32.

The main unit assembly 1, the hood 21, the first chamber 221, the negative pressure compartment assembly 2 and the container assembly 3 may form an integrated breast pump in the present application. The housing 10 is provided externally with a first accommodation space capable of accommodating the negative pressure chamber assembly 2, and the negative pressure chamber assembly 2 is abutted in the first accommodation space and is connected with the main machine assembly in a sealing manner through a first passage. The assembled housing 1 and the sub-pressure compartment assembly 2 may form a second accommodation space at the bottom, in which the container assembly 3 rests. The container assembly 3 and the negative pressure cabin assembly 2 are hermetically connected by a negative pressure cabin cover 314. The milk collection container 33 is detachably connected to the housing of the main unit assembly 1. The bottom of the milk collection container 33 is provided with a flat and standing surface, which may form the base of the integrated breast pump.

The arrangement of the integrated breast pump structure can realize the convenient disassembly and assembly of the main machine component 1 and the negative pressure cabin component 2, and is convenient for use or cleaning the breast pump and convenient for carrying out.

The breast pump provided herein may also be formed as a split breast pump. In addition, one or more of the components of the breast pump may be formed into a single product for use.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (15)

1. A breast pump (100), comprising:

a first receiving portion (211) for at least partially receiving a breast, the first receiving portion (211) being provided with a first opening (212);

a suction diaphragm (23) for at least partially defining a deformable sealing cavity (231), the deformable sealing cavity (231) being in fluid communication with a negative pressure pump (11) and configured to be collapsible under the action of the negative pressure pump (11); and

-a second housing (31) for at least partially housing the deformable sealing cavity (231) and being in fluid communication with the first housing (211) through the first opening (212), the second housing (31) and the first opening (212) being configured to:

when the deformable sealing cavity (231) is contracted, a negative pressure space is formed in the second accommodating portion (31) to transmit negative pressure to the first accommodating portion (211) through the first opening (212).

2. The breast pump (100) according to claim 1, wherein the first opening (212) and the first receiving portion (211) are further configured to: the milk in the first accommodating part (211) is guided out into the second accommodating part (31) through the first opening (212).

3. Breast pump (100) according to claim 1 or 2, wherein the negative pressure space is at least partly delimited by the outer wall of the suction diaphragm (23) and the inner wall of the second receptacle (31), the suction diaphragm (23) being capable of preventing milk in the second receptacle (31) from entering the negative pressure pump (11).

4. The breast pump (100) according to any one of claims 1 to 3, wherein,

the second accommodating part (31) comprises a holding part (22) and a negative pressure hatch (314), wherein the holding part (22) can cover at least an opening of the negative pressure hatch (314) to form the second accommodating part (31); and

the suction diaphragm (23) is sleeved on the holding part (22) to form the deformable sealing cavity (231).

5. The breast pump (100) according to claim 4, wherein,

the first opening (212) extends outside the first receiving portion (211) to form a first channel (222), wherein the first channel (222) is at least partially received in the second receiving portion (31), and the second receiving portion (31) is in fluid communication with the first receiving portion (211) through the first channel (222), wherein preferably:

the first passage (222) passes through the holding portion (22) to be at least partially accommodated in the second accommodating portion (31); and/or

-the suction diaphragm (23) forming the deformable sealing cavity (231) around the outer wall of the first channel (222), wherein an outer edge of the deformable sealing cavity (231) is in sealing connection with the holding part (22); and/or

The holding part (22) is provided with a second passage (223), and the deformable sealing cavity (231) is in fluid communication with the negative pressure pump (11) through the second passage (223).

6. The breast pump (100) according to claim 4 or 5, wherein,

the first accommodating part (211), the holding part (22) and the suction diaphragm (23) are integrally formed; and/or

The vacuum chamber (314) is connected to the holding part (22) in a sealing manner, wherein the vacuum chamber (314) is preferably connected to the deformable sealing chamber (231) in a sealing manner, so as to further realize a sealing connection to the holding part (22), and the vacuum chamber (314) is further preferably connected to the deformable sealing chamber (231) in a sealing manner by means of extrusion.

7. The breast pump (100) according to any one of claims 1 to 6, wherein the breast pump (100) further comprises a host assembly (1), the host assembly (1) comprising a housing (10), wherein:

the negative pressure pump (11) is arranged in the shell (10); and/or

The host assembly (1) further comprises: and a solenoid valve (12) arranged in the shell (10), wherein the solenoid valve (12), the negative pressure pump (11) and the second channel (223) are connected in a sealing way through a tee pipe (13).

8. Breast pump (100) according to any of claims 1 to 7, wherein the negative pressure compartment assembly (2) further comprises a one-way valve (32), wherein the second receiving portion (31) is provided with a recess (311) for receiving the deformable sealing cavity (231), the recess (311) being provided at its bottom with a first through hole (312) connecting the one-way valve (32),

wherein preferably, the inner wall of the groove (311) is provided with a first concave part, the outer wall of the deformable sealing cavity (231) is provided with a first extension part (232) capable of being inserted into the first concave part, and the first extension part (232) is in fit contact with the first concave part, and further preferably, the one-way valve (32) is connected with the first through hole 312 through integral molding.

9. The breast pump (100) according to claim 8, wherein the one-way valve (32) is flat, the one-way valve (32) comprises a support portion (321) and an engaging portion (322), the support portion (321) is nested on the outside of the first through hole (312), the engaging portion (322) is connected with the support portion (321), and the engaging portion (322) can engage on the first through hole (312) under the action of negative pressure to seal the first through hole (312).

10. The breast pump (100) according to any one of claims 1 to 9, wherein the first receptacle (211) comprises a housing (21) and a first cavity (221), wherein:

the cover (21) is adapted to at least partially house a breast;

the first cavity (221) is used for at least partially accommodating a nipple, the first cavity (221) comprises the first opening (212) and a second opening (213), the first cavity (221) is connected with the cover body (21) through the second opening (213), and the first cavity is preferably:

the cover body (21) is arranged in two layers, wherein the outer cover body is formed by hard glue, and the inner cover body is formed by soft glue; and/or

The center line of the second opening (213) is perpendicular to the center line of the first opening (212), and/or the second opening (213) and the first opening (212) are arranged at opposite ends of the first cavity (221).

11. The breast pump (100) according to any one of claims 1 to 10, wherein the breast pump (100) further comprises a container assembly (3), the container assembly (3) comprising a detachable milk collection container (33),

wherein the milk collection container (33) is provided with an opening, and the second accommodating part (31) is at least partially accommodated in the milk collection container (33) through the opening of the milk collection container (33);

wherein preferably, the inner wall of the opening of the milk collecting container (33) and at least part of the outer wall of the second accommodating part (31) are connected in a sealing way, and an exhaust groove (313) is arranged at the sealing connection part and used for exhausting the air of the milk collecting container (33) so that the air pressure in the milk collecting container (33) is consistent with the external air pressure.

12. The breast pump (100) according to claim 11, wherein the milk collection container (33) is detachably secured to the main assembly (1), wherein:

a positioning groove is arranged on the milk collecting container (33), and a telescopic positioning bead (14) is arranged on the shell (10) of the main machine assembly (1), wherein the telescopic positioning bead (14) is stretched into the positioning groove or contracted from the positioning groove, so that the milk collecting container (33) is installed or detached; and/or

A second recess is arranged on the outer wall of the opening of the milk collection container (33), and a second extension is arranged on the housing (10) of the main unit assembly (1), wherein the second extension is inserted into or removed from the second recess, so that the milk collection container (33) is mounted or dismounted.

13. The breast pump (100) according to any one of claims 1 to 12, wherein the suction diaphragm (23) is manufactured from an elastic material.

14. The breast pump (100) according to any one of claims 1 to 13, wherein the breast pump (100) is an integrated breast pump.

15. The breast pump (100) according to claim 14, wherein,

a first accommodating space is arranged outside the shell (10) of the breast pump (100), and the negative pressure cabin assembly (2) is abutted in the first accommodating space; and

the housing (10) and the negative pressure compartment assembly (2) abutting in the first accommodating space form a second accommodating space at the bottom, the milk collecting container (33) of the breast pump (100) abuts in the second accommodating space,

wherein preferably the bottom of the milk collection container (33) is provided with a flat and standing surface that forms the base of the integrated breast pump.