Breast pump

Abstract

Disclosed in the embodiments of the present application is a breast pump, comprising a milk pumping conduit, a milk guiding channel being formed in the milk pumping conduit and used for receiving milk from the breast; a milk outlet formed in the milk pumping conduit, negative pressure being transmitted into the milk guiding channel through the milk outlet; and a milk storage container, a milk storage space being formed in the milk storage container, and the milk in the milk guiding channel flowing out of the milk guiding channel through the milk outlet and flowing to the milk storage space. By means of the described mode, negative pressure transmission and milk outflow both occur through the milk outlet, no milk remains in the milk guiding channel, and the milk pumping efficiency is higher.

Description

breast pump

[0001] Related applications

[0002] This application claims priority to Chinese patent numbers 202322946846.1, 202322948544.8, and 202322946626.9, filed on October 31, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the technical field of maternal and infant equipment, and in particular to a breast pump. Background Art

[0004] Breastfeeding is irreplaceable for the growth and development of newborns. Breast pumps are a vital tool to support mothers who are unable to breastfeed directly or who wish to store breast milk for later use.

[0005] Although there are many types of breast pumps available on the market, users still face some challenges during use, especially in improving milk extraction efficiency and dealing with residual milk (i.e. "residual milk") and hidden milk (i.e. "stored milk").

[0006] Summary of the Invention

[0007] In view of the deficiencies in the prior art, the present application provides a breast pump that can solve the problems of milk storage and low milk pumping efficiency.

[0008] To solve the above technical problems, a technical solution adopted in an embodiment of the present application is: to provide a breast pump, the breast pump comprising: a milk suction duct, a milk conduction channel formed in the milk suction duct, the milk conduction channel being used to receive milk from the breast; a milk outlet is provided on the milk suction duct, and negative pressure is transmitted to the milk conduction channel through the milk outlet; and a milk storage container, a milk storage space is formed in the milk storage container, and the milk in the milk conduction channel flows out of the milk conduction channel through the milk outlet and flows into the milk storage space.

[0009] Optionally, the milk storage container is a milk bowl assembly, and the milk suction pipe is connected to the milk bowl assembly.

[0010] Optionally, the milk bowl assembly includes a bowl body and a cover plate, the bowl body and the cover plate enclose a milk storage space, and the milk suction pipe is connected to the cover plate.

[0011] Optionally, the breast pump comprises a breast shield, and the milk extraction duct is connected to the breast shield.

[0012] Optionally, the breast pump further comprises a diaphragm support, a negative pressure cavity is formed in the diaphragm support, and the negative pressure cavity is connected to the milk guide channel through the milk outlet.

[0013] Optionally, the diaphragm support is provided with a milk outlet, and the milk in the milk guide channel flows out of the milk guide channel through the milk outlet, flows through the negative pressure chamber, and then flows into the milk storage space through the milk outlet.

[0014] Optionally, the breast pump further comprises a host, which is configured to provide negative pressure.

[0015] Optionally, the breast pump also includes a host, which includes a negative pressure interface. The host is connected to the negative pressure chamber through the negative pressure interface. The host is used to form negative pressure in the negative pressure chamber, and the negative pressure is transmitted to the milk guide channel through the milk outlet.

[0016] Optionally, the negative pressure chamber is at least partially lower than the milk guide channel when the breast pump is worn.

[0017] Optionally, the breast pump further comprises a diaphragm, which is disposed in the negative pressure chamber and is at least partially driven at a position lower than the milk guide channel when the breast pump is worn.

[0018] Optionally, the milk outlet is located at the lower side of the milk extraction duct.

[0019] Optionally, the milk outlet is located at the end of the milk suction duct and slightly below it.

[0020] Optionally, the milk outlet is located between the end of the milk suction duct and the cover plate.

[0021] Optionally, the end of the milk duct facing away from the human body is closed when the breast milk duct is worn.

[0022] Optionally, the breast pump further comprises a breast shield, wherein one end portion of the breast shield at least partially overlaps with the milk suction duct.

[0023] Optionally, a double-layer structure is formed where one end of the breast shield overlaps with the milk duct, and the double-layer structure is at least partially made of a light-transmitting material so that a user can observe the milk guide channel or the interior of the breast shield through the double-layer structure.

[0024] Optionally, one end portion of the breast shield is inserted into the milk suction duct or the milk suction duct is inserted into one end portion of the breast shield.

[0025] Optionally, the breast pump further includes a breast shield, and a through hole is formed on the main body in the thickness direction; the breast shield has a narrow end and a wide end, the narrow end of the breast shield is passed through the through hole, and the main body is at least partially located between the wide end of the breast shield and the milk bowl assembly.

[0026] Optionally, the milk storage container is a milk bowl assembly, the main unit includes a transverse portion and a longitudinal portion bent and connected to the transverse portion, the first side of the milk bowl assembly contacts the longitudinal portion of the main unit, and the second side of the milk bowl assembly contacts the transverse portion of the main unit, and the first side and the second side are two adjacent sides of the milk bowl assembly.

[0027] Optionally, the breast pump also includes a diaphragm, which is used to be placed in the negative pressure chamber. The diaphragm divides the internal space of the diaphragm support into a first subspace and a second subspace. The first subspace is connected to the negative pressure interface of the host, and the second subspace is connected to the internal space of the milk suction duct. The diaphragm can be deformed in the internal space of the diaphragm support under the drive of the negative pressure provided by the host to transmit negative pressure.

[0028] The embodiment of the present application is provided with a breast pump including: a milk suction duct, a milk guide channel formed in the milk suction duct, and the milk guide channel is used to receive milk from the breast; the milk suction duct is provided with a milk outlet, and negative pressure is transmitted to the milk guide channel through the milk outlet; and a milk storage container, a milk storage space is formed in the milk storage container, and the milk in the milk guide channel flows out of the milk guide channel through the milk outlet and flows into the milk storage space. The transmission of negative pressure and the outflow of milk are both through the milk outlet, so that milk will not remain in the milk guide channel, and the efficiency of milk extraction is higher.

[0029] In view of the deficiencies in the prior art, the present application provides a breast pump that can solve the problems of milk storage and low milk pumping efficiency.

[0030] To solve the above technical problems, a technical solution adopted in an embodiment of the present application is: to provide a breast pump, the breast pump comprising: a milk suction duct, a milk conduction channel formed in the milk suction duct, the milk conduction channel being used to receive milk from the breast; and a diaphragm support, a negative pressure chamber formed in the diaphragm support, the negative pressure chamber being connected to the milk conduction channel; the negative pressure chamber is at least partially lower than the milk conduction channel when the breast pump is worn.

[0031] Optionally, the breast pump further comprises a diaphragm, which is disposed in the negative pressure chamber and is at least partially driven at a position lower than the milk guide channel when the breast pump is worn.

[0032] Optionally, a milk outlet is provided on the milk suction duct, and negative pressure is transmitted to the milk guide channel through the milk outlet; milk in the milk guide channel flows out of the milk guide channel through the milk outlet under the action of the negative pressure.

[0033] Optionally, the milk outlet is located at the lower side of the milk suction duct.

[0034] Optionally, the milk outlet is located at the end of the milk suction duct and slightly below it.

[0035] Optionally, the end of the milk suction duct away from the human body when worn is closed to form a closed end.

[0036] Optionally, the milk outlet is located between the closed end and the cover plate.

[0037] Optionally, the breast pump further comprises a milk bowl assembly, and the milk suction duct is connected to the milk bowl assembly.

[0038] Optionally, the milk bowl assembly includes a bowl body and a cover plate, the bowl body and the cover plate enclose a milk storage space, and the milk suction duct is connected to the cover plate.

[0039] Optionally, the breast pump further comprises a breast shield, the inner space of the breast shield is communicated with the milk guide channel, and the milk suction duct is connected to the breast shield.

[0040] The embodiment of the present application provides the breast pump including: a milk suction duct, a milk conduction channel formed in the milk suction duct, and the milk conduction channel is used to receive milk from the breast; and a diaphragm support, a negative pressure chamber formed in the diaphragm support, and the negative pressure chamber is connected to the milk conduction channel; when the breast pump is worn, the negative pressure chamber is at least partially lower than the milk conduction channel, so that milk will not remain in the milk conduction channel, and the efficiency of milk extraction is higher.

[0041] In view of the deficiencies in the prior art, an embodiment of the present application provides a breast pump that can solve the problems of the breast pump having an incompact structure and low milk suction efficiency.

[0042] To solve the above technical problems, a technical solution adopted in an embodiment of the present application is: to provide a breast pump, the breast pump comprising: a milk bowl assembly, the milk bowl assembly comprising a bowl body and a cover plate, the bowl body and the cover plate forming a milk storage space; and a milk suction duct, the milk suction duct being connected to the cover plate, a milk conduction channel being formed in the milk suction duct, the milk conduction channel being used to receive milk from the breast, a milk outlet being provided on the milk suction duct, the milk in the milk conduction channel flowing out of the milk suction duct through the milk outlet under the action of negative pressure, the milk suction duct comprising a distal end away from the cover plate, and the milk outlet being located between the cover plate and the distal end.

[0043] Optionally, the distal end of the milk suction duct is a closed end.

[0044] Optionally, the distal end of the milk suction duct is a non-closed end, and the milk outlet is located slightly below the distal end.

[0045] Optionally, the negative pressure is transmitted to the milk conduction channel through the milk outlet, and the milk in the milk conduction channel flows out of the milk conduction channel through the milk outlet.

[0046] Optionally, the breast pump further comprises a diaphragm support, a negative pressure cavity is formed in the diaphragm support, and the negative pressure cavity is connected to the milk guide channel through the milk outlet.

[0047] Optionally, the diaphragm support is provided with a milk outlet, and the milk in the milk guide channel flows out of the milk guide channel through the milk outlet, then flows through the negative pressure chamber and then flows into the milk storage space through the milk outlet.

[0048] Optionally, the breast pump further comprises a host, and the host is configured to provide the negative pressure.

[0049] Optionally, the breast pump further includes a host, the host including a negative pressure interface, the host is connected to the negative pressure chamber through the negative pressure interface, the host is used to form the negative pressure in the negative pressure chamber, and the negative pressure is transmitted to the milk guide channel through the milk outlet.

[0050] Optionally, the breast pump further comprises a breast shield, and one end portion of the breast shield at least partially overlaps with the milk suction duct.

[0051] Optionally, a double-layer structure comprising at least two layers is formed at a position where one end of the breast shield overlaps with the milk suction duct, and the double-layer structure is at least partially transparent so that a user can observe the milk suction channel or the inside of the breast shield through the double-layer structure.

[0052] The embodiment of the present application provides a breast pump comprising: a milk bowl assembly, wherein the milk bowl assembly comprises a bowl body and a cover plate, wherein the bowl body and the cover plate enclose a milk storage space; and a milk suction duct, wherein the milk suction duct is connected to the cover plate, a milk guide channel is formed in the milk suction duct, wherein the milk guide channel is used to receive milk from the breast, and a milk outlet is provided on the milk suction duct, wherein the milk in the milk guide channel flows out of the milk suction duct through the milk outlet under the action of negative pressure, the milk suction duct comprises a distal end away from the cover plate, and the milk outlet is located between the cover plate and the distal end, which can facilitate the miniaturized structural design of the breast pump and improve the milk suction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0054] FIG1 is a schematic structural diagram of a breast pump according to an embodiment of the present application;

[0055] FIG2 is a schematic diagram of a first disassembled structure of a breast pump according to an embodiment of the present application;

[0056] FIG3 is a schematic diagram of a second disassembled structure of a breast pump according to an embodiment of the present application;

[0057] FIG4 is a schematic cross-sectional view of a milk bowl assembly according to an embodiment of the present application;

[0058] FIG5 is a schematic diagram of the structure of another embodiment of the present application in which a milk suction duct is arranged on a breast shield;

[0059] FIG6 is a schematic structural diagram of another embodiment of the present application in which only a portion of the negative pressure chamber is located below the milk guide channel;

[0060] FIG7 is a schematic structural diagram of another embodiment of the present application in which the milk outlet is located slightly below the end of the milk suction duct;

[0061] FIG8 is a schematic diagram of a double-layer structure composed of a breast shield and a breast suction duct according to an embodiment of the present application;

[0062] FIG9 is a schematic structural diagram of a cover plate according to an embodiment of the present application;

[0063] FIG10 is a schematic diagram of a third disassembled structure of a breast pump according to an embodiment of the present application.

[0064] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0065] In this application, the terms "disposed," "provided with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0066] The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0068] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0069] Please refer to Figures 1, 2, 3, 4 and 9. In this embodiment, the breast pump may include: a milk suction duct 10 and a milk storage container 20.

[0070] A milk guide channel 11 is formed in the milk suction duct 10 for receiving milk from the breast. A milk outlet 12 is provided on the milk suction duct 10 , and negative pressure is transmitted to the milk guide channel 11 through the milk outlet 12 .

[0071] A milk storage space 21 is formed in the milk storage container 20. Milk in the milk guide channel 11 flows out of the milk guide channel 11 through the milk outlet 12 and flows into the milk storage space 21. The flow direction referred to here refers to direct flow into the milk storage space 21 or indirect flow (for example, through a negative pressure chamber and then into the milk storage space 21), which is not limited in this embodiment of the present application.

[0072] In the above manner, the negative pressure is transmitted and the milk flows out through the milk outlet 12. The milk flows along the direction of the air flow formed by the negative pressure, so that the milk will not remain in the milk guide channel 11 and the efficiency of milk extraction is higher.

[0073] In one embodiment, the milk storage container 20 is a milk bowl assembly 20, and the milk suction duct 10 is connected to the milk bowl assembly 20. In some embodiments, the milk storage container can also be a milk bottle. In this case, the bottle mouth can be directly or indirectly connected to the milk outlet 12. In some embodiments, the milk suction duct 10 can be integrally connected to the milk bowl assembly 20. In other embodiments, the milk suction duct 10 can be detachably connected to the milk bowl assembly 20, which is not limited in this embodiment of the present application. The milk suction duct 10 can extend into the milk storage space 21.

[0074] In one embodiment, the milk bowl assembly 20 includes a bowl body 22 and a cover plate 23. The bowl body 22 and the cover plate 23 enclose a milk storage space 21, and the milk suction duct 10 is connected to the cover plate 23. In some embodiments, the milk suction duct 10 can be detachably connected to the cover plate 23 or connected integrally, which is not limited in this embodiment of the application.

[0075] In one embodiment, the breast pump further includes a diaphragm support 30, which defines a negative pressure chamber 31. The negative pressure chamber 31 communicates with the milk guide channel 11 via the milk outlet 12. The diaphragm support 30 may be located below the milk duct 10 or extend parallel to the milk duct 10. The diaphragm support 30 may extend into the milk storage space 21.

[0076] In one embodiment, the diaphragm support 30 is provided with a milk outlet 32 ​​, and the milk in the milk guide channel 11 flows out of the milk guide channel 11 through the milk outlet 12 , flows through the negative pressure chamber 31 , and then flows into the milk storage space 21 through the milk outlet 32 ​​.

[0077] As shown in Figure 5, in another embodiment, a breast pump includes a breast shield 23a, to which a milk duct 10a is connected. A milk guide channel 11a is formed within the milk duct 10a for receiving milk from the breast. A milk outlet 12a is provided in the milk duct 10a, through which negative pressure is transmitted to the milk guide channel 11a. The breast pump may also include a diaphragm support 30a, within which a negative pressure chamber 31a is formed. The negative pressure chamber 31a communicates with the milk guide channel 11a via the milk outlet 12a. The diaphragm support 30a is provided with a milk outlet 32a. Milk in the milk guide channel 11a flows out of the milk guide channel 11a through the milk outlet 12a, then flows through the negative pressure chamber 31a and into the milk storage space through the milk outlet 32a.

[0078] In one embodiment, the breast pump further includes a main unit 40, which is configured to provide negative pressure. The main unit 40 may include a housing and components such as a negative pressure pump, a solenoid valve, a battery, and a circuit board located within the housing. The main unit 40 may be an integrated breast pump with the milk bowl assembly 20, or a separate breast pump connected to the milk bowl assembly 20 via a pipe. It should be understood that the provision of negative pressure is not limited to an electric negative pressure pump; a manual negative pressure mechanism may also be employed. This is not a limitation in the present embodiment. In some embodiments, the breast pump may not include a mechanism for providing negative pressure, but may instead provide negative pressure through external power.

[0079] In one embodiment, the breast pump further includes a main unit 40, which includes a negative pressure interface 44, which can be connected to a negative pressure pump. The main unit 40 is connected to the negative pressure chamber 31 via the negative pressure interface 44. The main unit 40 is used to generate a negative pressure in the negative pressure chamber 31, which is then transmitted to the milk guide channel 11 through the milk outlet 12.

[0080] In one embodiment, the negative pressure chamber 31 is at least partially below the milk guide channel 11 when the breast pump is worn. In some embodiments, the negative pressure chamber 31 is completely below the milk guide channel 11. "Wearing" herein refers to wearing the breast pump with the upper body in a normal upright position, i.e., with the wearing surface substantially in the vertical direction.

[0081] As shown in Figure 6, in some other embodiments, the negative pressure chamber 31b may be located only partially below the milk guide channel 11b. The milk suction duct 10b is connected to the cover plate 23b, and a milk guide channel 11b is formed within the milk suction duct 10b. The milk guide channel 11b is used to receive milk from the breast. The milk suction duct 10b is provided with a milk outlet 12b, which is located at the end of the milk suction duct 10b. Negative pressure is transmitted to the milk guide channel 11b through the milk outlet 12b. The breast pump may also include a diaphragm support 30b, with a negative pressure chamber 31b formed therein. The negative pressure chamber 31b communicates with the milk guide channel 11b through the milk outlet 12b. The diaphragm support 30b is provided with a milk outlet 32b. Milk in the milk guide channel 11b flows out of the milk guide channel 11b through the milk outlet 12b, then flows through the negative pressure chamber 31b and into the milk storage space through the milk outlet 32b.

[0082] In the above manner, the negative pressure chamber is at least partially below the milk guide channel, which can improve the efficiency of milk extraction and avoid milk storage.

[0083] In one embodiment, the breast pump further comprises a diaphragm 50 , which is disposed in the negative pressure chamber 31 . When the breast pump is worn, the diaphragm 50 is at least partially driven at a position lower than the milk guide channel 11 .

[0084] In the above manner, the negative pressure chamber is at least partially below the milk guide channel, which can improve the efficiency of milk extraction and avoid milk storage.

[0085] In one embodiment, the milk outlet 12 is located at the lower side of the milk duct 10. By arranging the milk outlet 12 at the lower side of the milk duct 10, milk accumulation can be further reduced, and milk residue in the milk duct 10 can be prevented. In addition, the sucked milk can partially flow out of the milk duct 10 by gravity, which can further save power and improve milk extraction efficiency.

[0086] As shown in Figure 7, in another embodiment, the milk outlet 12c is located at the end of the milk duct 10c, slightly below it. The milk duct 10c is connected to the cover plate 23c, and a milk conduction channel 11c is formed within the milk duct 10c. The milk conduction channel 11c is used to receive milk from the breast. The milk duct 10c is provided with a milk outlet 12c, which is located at the end of the milk duct 10c. Negative pressure is transmitted to the milk conduction channel 11c through the milk outlet 12c. The breast pump may further include a diaphragm support 30c, having a negative pressure chamber 31c formed therein. The negative pressure chamber 31c communicates with the milk conduction channel 11c through the milk outlet 12c. The diaphragm support 30c is provided with a milk outlet 32c. Milk in the milk conduction channel 11c flows out of the milk conduction channel 11c through the milk outlet 12c, then flows through the negative pressure chamber 31c and into the milk storage space through the milk outlet 32c.

[0087] In one embodiment, the milk outlet 12 is located between the end of the milk duct 10 and the cover plate 23. Milk in the milk guide channel 11 flows out of the milk duct 10 through the milk outlet 12 under the action of negative pressure. The milk duct 10 includes a distal end away from the cover plate 23, and the milk outlet 12 is located between the cover plate 23 and the distal end. This positioning of the milk outlet 12 between the end of the milk duct 10 and the cover plate 23 makes the overall structure of the breast pump more compact, improves milk extraction efficiency, and prevents milk accumulation.

[0088] As shown in Figures 3, 4, and 8, in one embodiment, the distal end of the milk duct 10 is a closed end. In one embodiment, the end of the milk duct 10 that is away from the body when worn is closed. The end of the milk duct 10 that is away from the body when worn is closed to form a closed end. The milk outlet 12 is located between the closed end and the cover plate 23.

[0089] As shown in FIG. 7 , in another embodiment, the distal end of the milk suction duct 10c is a non-closed end, and the milk outlet 12c is located slightly below the distal end.

[0090] In one embodiment, the breast pump further includes a breast shield 60 , the interior space of the breast shield 60 is in communication with the milk guide channel 11 , and one end of the breast shield 60 at least partially overlaps with the milk suction duct 10 .

[0091] In one embodiment, a double-layer structure 100 is formed where one end of the breast shield 60 overlaps with the milk duct 10. The double-layer structure 100 is at least partially made of a light-transmissive material, allowing a user to observe the milk duct 11 or the interior of the breast shield 60 through the double-layer structure 100. The double-layer structure 100 includes at least two layers, one of which is a portion of the breast shield 60, and the other of which is a portion of the milk duct 10.

[0092] Optionally, the narrow end of the breast shield 60 at least partially overlaps with the milk duct 10 to form a double-layer structure 100 .

[0093] In one embodiment, the area of ​​the double-layer structure 100 made of the light-transmissive material is above the milk guide channel 11 .

[0094] In one embodiment, one end of the breast shield 60 is inserted into the milk duct 10. In other embodiments, the milk duct may also be inserted into one end of the breast shield, and this embodiment of the present application is not limited to this. In this embodiment of the present application, the breast shield 60 can be connected to the main unit 40. There is no connection or contact between the breast shield 60 and the milk duct 10. The narrow end 61 of the breast shield 60 is simply inserted into the milk duct 10 without an interference fit or threaded connection. The breast shield 60 is fixed by the main unit 40.

[0095] In one embodiment, at least a portion of the milk bowl assembly 20 is made of a light-transmitting material so that a user can observe the milk guide channel 11 and the interior of the breast shield 60 through the milk bowl assembly 20 and the double-layer structure 100 , or observe the interior of the milk storage space 21 through the milk bowl assembly 20 .

[0096] In one embodiment, the breast pump further includes a breast shield 60, and a through hole 41 is formed on the main unit 40 in the thickness direction; the breast shield 60 has a narrow end 61 and a wide end 62, the narrow end of the breast shield 60 is passed through the through hole 41, and the main unit 40 is at least partially located between the wide end 62 of the breast shield 60 and the milk bowl assembly 20.

[0097] In one embodiment, the milk storage container 20 is a milk bowl assembly 20, and the main unit 40 includes a transverse portion 42 and a longitudinal portion 43 bent and connected to the transverse portion 42. The first side 24 of the milk bowl assembly 20 contacts the longitudinal portion 43 of the main unit 40, and the second side 25 of the milk bowl assembly 20 contacts the transverse portion 42 of the main unit 40. The first side 24 and the second side 25 are two adjacent sides of the milk bowl assembly 20.

[0098] In one embodiment, the breast pump further includes a diaphragm 70, which is used to be placed in the negative pressure chamber 31. The diaphragm 70 divides the internal space of the diaphragm support 30 into a first subspace and a second subspace. The first subspace is connected to the negative pressure interface 44 of the host 40, and the second subspace is connected to the internal space of the milk suction duct 10. The diaphragm 70 can be deformed in the internal space of the diaphragm support 30 under the drive of the negative pressure provided by the host 40 to transmit negative pressure.

[0099] In one embodiment, the breast pump further includes a one-way valve 80, which is disposed at the milk outlet 52. The one-way valve 80 is configured to allow milk to flow in one direction to the milk storage space 21. The one-way valve 80 may be a disc-type one-way valve or a duckbill valve, which is not limited in this embodiment of the present application.

[0100] The embodiment of the present application is provided with a breast pump including: a milk suction duct, a milk guide channel formed in the milk suction duct, and the milk guide channel is used to receive milk from the breast; the milk suction duct is provided with a milk outlet, and negative pressure is transmitted to the milk guide channel through the milk outlet; and a milk storage container, a milk storage space is formed in the milk storage container, and the milk in the milk guide channel flows out of the milk guide channel through the milk outlet and flows into the milk storage space. The transmission of negative pressure and the outflow of milk are both through the milk outlet, so that milk will not remain in the milk guide channel, and the efficiency of milk extraction is higher.

[0101] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0102] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A breast pump, characterized in that: The breast pump comprises: A milk suction duct, wherein a milk guide channel is formed in the milk suction duct, and the milk guide channel is used to receive milk from the breast; a milk outlet is provided on the milk suction duct, and negative pressure is transmitted to the milk guide channel through the milk outlet; and A milk storage container is provided with a milk storage space, and the milk in the milk guide channel flows out of the milk guide channel through the milk outlet and flows into the milk storage space.

2. The breast pump according to claim 1, characterized in that: The milk storage container is a milk bowl assembly, and the milk suction pipe is connected to the milk bowl assembly.

3. The breast pump according to claim 2, characterized in that: The milk bowl assembly comprises a bowl body and a cover plate, wherein the bowl body and the cover plate enclose the milk storage space, and the milk suction duct is connected to the cover plate.

4. The breast pump according to any one of claims 1 to 3, characterized in that: The breast pump comprises a breast shield, and the milk suction duct is connected to the breast shield.

5. The breast pump according to any one of claims 1 to 3, characterized in that: The breast pump further comprises a diaphragm support, a negative pressure cavity is formed in the diaphragm support, and the negative pressure cavity is communicated with the milk guide channel through the milk outlet.

6. The breast pump according to claim 5, characterized in that The diaphragm support is provided with a milk outlet, and the milk in the milk conduction channel flows out of the milk conduction channel through the milk outlet, flows through the negative pressure chamber, and then flows into the milk storage space through the milk outlet.

7. The breast pump according to any one of claims 1 to 3, characterized in that: The breast pump further comprises a host, and the host is used for providing the negative pressure.

8. The breast pump according to claim 6, characterized in that: The breast pump also includes a host, which includes a negative pressure interface. The host is connected to the negative pressure chamber via the negative pressure interface. The host is used to form the negative pressure in the negative pressure chamber, and the negative pressure is transmitted to the milk guide channel via the milk outlet.

9. The breast pump according to claim 5, characterized in that: When the breast pump is worn, at least a portion of the negative pressure chamber is lower than the milk guide channel.

10. The breast pump according to claim 5, characterized in that The breast pump further comprises a diaphragm, which is arranged in the negative pressure chamber. When the breast pump is worn, the diaphragm is at least partially driven at a position lower than the milk guide channel.

11. The breast pump according to any one of claims 1 to 3, characterized in that: The milk outlet is located at the lower side of the milk suction duct.

12. The breast pump according to any one of claims 1 to 3, characterized in that: The milk outlet is located at the end of the milk suction duct and slightly below it.

13. The breast pump according to claim 3, characterized in that The milk outlet is located between the end of the milk suction duct and the cover plate.

14. The breast pump according to any one of claims 1 to 3, characterized in that: The end of the milk suction duct away from the human body is closed when the breast is worn.

15. The breast pump according to any one of claims 1 to 3, characterized in that: The breast pump further comprises a breast shield, one end of which at least partially overlaps with the milk suction duct.

16. The breast pump according to claim 15, characterized in that A double-layer structure is formed at a position where one end of the breast shield overlaps with the milk suction duct, and the double-layer structure is at least partially made of a light-transmitting material so that a user can observe the milk guide channel or the interior of the breast shield through the double-layer structure.

17. The breast pump according to claim 16, characterized in that One end of the breast shield is inserted into the milk suction duct or the milk suction duct is inserted into one end of the breast shield.

18. The breast pump according to claim 7, characterized in that The breast pump also includes a breast shield, and a through hole is formed on the main unit in the thickness direction; the breast shield has a narrow end and a wide end, the narrow end of the breast shield is inserted into the through hole, and the main unit is at least partially located between the wide end of the breast shield and the milk bowl assembly.

19. The breast pump according to claim 7, characterized in that The milk storage container is a milk bowl assembly, the main machine comprises a transverse portion and a longitudinal portion bent and connected to the transverse portion, a first side surface of the milk bowl assembly contacts the longitudinal portion of the main machine, a second side surface of the milk bowl assembly contacts the transverse portion of the main machine, and the first side surface and the second side surface are two adjacent side surfaces of the milk bowl assembly.

20. The breast pump according to claim 7, characterized in that The breast pump also includes a diaphragm, which is used to be placed in the negative pressure chamber. The diaphragm divides the internal space of the diaphragm support into a first subspace and a second subspace. The first subspace is connected to the negative pressure interface of the host, and the second subspace is connected to the internal space of the milk suction duct. The diaphragm can be deformed in the internal space of the diaphragm support under the drive of the negative pressure provided by the host to transmit negative pressure.

21. A breast pump, characterized in that: The breast pump comprises: a milk suction duct, wherein a milk conduction channel is formed in the milk suction duct, and the milk conduction channel is used to receive milk from the breast; and A diaphragm support is formed with a negative pressure chamber in the diaphragm support, and the negative pressure chamber is communicated with the milk conduction channel; when the breast pump is worn, at least a portion of the negative pressure chamber is lower than the milk conduction channel.

22. The breast pump according to claim 21, characterized in that The breast pump further comprises a diaphragm, which is arranged in the negative pressure chamber. When the breast pump is worn, the diaphragm is at least partially driven at a position lower than the milk guide channel.

23. The breast pump according to claim 21, characterized in that The milk suction duct is provided with a milk outlet, and negative pressure is transmitted to the milk guide channel through the milk outlet; milk in the milk guide channel flows out of the milk guide channel through the milk outlet under the action of the negative pressure.

24. The breast pump according to claim 23, characterized in that The milk outlet is located at the lower side of the milk suction duct.

25. The breast pump according to claim 23, characterized in that The milk outlet is located at the end of the milk suction duct and slightly below it.

26. The breast pump according to any one of claims 21 to 25, characterized in that: The end of the milk suction duct away from the human body when the breast is worn is closed to form a closed end.

27. The breast pump according to claim 26, characterized in that The milk outlet is located between the closed end and the cover plate.

28. The breast pump according to any one of claims 21 to 25, characterized in that: The breast pump also includes a milk bowl assembly, and the milk suction duct is connected to the milk bowl assembly.

29. The breast pump according to claim 28, characterized in that The milk bowl assembly comprises a bowl body and a cover plate, wherein the bowl body and the cover plate enclose a milk storage space, and the milk suction duct is connected to the cover plate.

30. The breast pump according to any one of claims 21 to 25, characterized in that: The breast pump further comprises a breast shield, the inner space of the breast shield is communicated with the milk guide channel, and the milk suction duct is connected to the breast shield.

31. A breast pump, characterized in that: The breast pump comprises: A milk bowl assembly, the milk bowl assembly comprising a bowl body and a cover plate, the bowl body and the cover plate enclosing a milk storage space; and A milk suction duct, the milk suction duct is connected to the cover plate, a milk conduction channel is formed in the milk suction duct, the milk conduction channel is used to receive milk from the breast, the milk suction duct is provided with a milk outlet, the milk in the milk conduction channel flows out of the milk suction duct through the milk outlet under the action of negative pressure, the milk suction duct includes a distal end away from the cover plate, and the milk outlet is located between the cover plate and the distal end.

32. The breast pump according to claim 31, characterized in that The distal end of the milk suction duct is a closed end.

33. The breast pump according to claim 31, characterized in that The distal end of the milk suction duct is a non-closed end, and the milk outlet is located at a position slightly below the distal end.

34. The breast pump according to claim 31, characterized in that The negative pressure is transmitted to the milk conduction channel through the milk outlet, and the milk in the milk conduction channel flows out of the milk conduction channel through the milk outlet.

35. The breast pump according to claim 31, characterized in that The breast pump further comprises a diaphragm support, a negative pressure cavity is formed in the diaphragm support, and the negative pressure cavity is communicated with the milk guide channel through the milk outlet.

36. The breast pump according to claim 35, characterized in that The diaphragm support is provided with a milk outlet, and the milk in the milk conduction channel flows out of the milk conduction channel through the milk outlet, flows through the negative pressure chamber, and then flows into the milk storage space through the milk outlet.

37. A breast pump according to any one of claims 31 to 36, characterized in that: The breast pump further comprises a host, and the host is used for providing the negative pressure.

38. The breast pump according to claim 36, characterized in that The breast pump also includes a host, which includes a negative pressure interface. The host is connected to the negative pressure chamber via the negative pressure interface. The host is used to form the negative pressure in the negative pressure chamber, and the negative pressure is transmitted to the milk guide channel via the milk outlet.

39. A breast pump according to any one of claims 31 to 36, characterized in that: The breast pump further comprises a breast shield, one end of which at least partially overlaps with the milk suction duct.

40. The breast pump according to claim 39, characterized in that The position where one end of the breast shield overlaps with the milk suction duct forms a double-layer structure including at least two layers, and the double-layer structure is at least partially transparent so that a user can observe the milk suction channel or the inside of the breast shield through the double-layer structure.

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