A wearable breast pump

Abstract

The utility model discloses a kind of wearable breast pump, it is related to maternal and infant appliance field, including loudspeaker mouth, breast passage, negative pressure device and milk storage structure;Two ends of breast passage are respectively equipped with liquid inlet and liquid outlet, and the lateral wall of breast passage is equipped with negative pressure port;Loudspeaker mouth is connected in liquid inlet;Milk storage structure is equipped in liquid outlet;The negative pressure end of negative pressure device is communicated in negative pressure port;It further includes valve piece;Valve piece is attached to the ring side of liquid outlet, and is blocked in liquid outlet;The lower half of valve piece can be opened towards the outside of liquid outlet. A kind of wearable breast pump provided by the utility model replaces duckbill valve by setting the valve piece that can be half opened in liquid outlet, shortens the depth of valve body downward extension, can avoid the situation that valve port cannot be opened to affect normal use.

Description

Technical Field

[0001] This utility model relates to the field of maternal and infant devices, and in particular to a wearable breast pump. Background Technology

[0002] A breast pump is a tool used to express breast milk accumulated in the mammary glands. It mainly consists of a milk collection container, connecting parts, a milk expression assembly, and a power unit. Breast pumps are generally divided into manual breast pumps and electric breast pumps. Electric breast pumps have higher milk expression efficiency, can adjust different expression modes and intensities, and simulate the sucking rhythm of a baby, making them more comfortable and convenient to use.

[0003] Chinese utility model patent application number 201921597490.2 discloses an electric breast pump. This patent features a duckbill valve at the outlet end of a three-way valve, allowing milk to flow unidirectionally from the valve into a milk storage bottle below. Because the duckbill valve's valve disc is long and downward-facing, extending into the milk storage bottle, as milk gradually accumulates, when the milk in the bottle overflows the valve opening, the valve is subjected to pressure from the milk outside, causing it to close. This prevents further milk flow and affects the normal use of the breast pump. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a wearable breast pump that can avoid the situation where the valve cannot be opened, thus affecting normal use.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a wearable breast pump, including a flared mouth, a breast pumping channel, a negative pressure device, and a milk storage structure; the breast pumping channel has an inlet and an outlet at both ends, and a negative pressure port is provided on the side wall of the breast pumping channel; the flared mouth is connected to the inlet; the milk storage structure is located at the outlet; the negative pressure end of the negative pressure device is connected to the negative pressure port; it also includes a valve plate; the valve plate is attached to the circumferential side of the outlet and seals the outlet; the lower half of the valve plate can open towards the outside of the outlet.

[0007] The wearable breast pump provided by this utility model preferably includes an upper piece and a lower piece as the valve plate; the upper piece and the lower piece are flexibly spliced ​​together to form a splicing line; the upper piece is fixed to the outer edge of the upper half of the liquid outlet and seals the upper half of the liquid outlet; the lower piece is attached to the outer edge of the lower half of the liquid outlet and seals the lower half of the liquid outlet; when the internal pressure of the breast pumping channel is greater than the external pressure, the lower piece can fold outward toward the liquid outlet with the splicing line as the axis, and the lower piece cannot fold inward toward the liquid outlet.

[0008] The wearable breast pump provided by this utility model preferably has a negative pressure channel in the breast pumping channel; the negative pressure port is opened on the top side wall of the breast pumping channel; the first opening of the negative pressure channel is connected to the negative pressure port, and the second opening of the negative pressure channel is connected to the negative pressure end of the negative pressure device; the first opening and the second opening of the negative pressure channel are staggered from each other in the height direction.

[0009] The wearable breast pump provided by this utility model preferably has a breast pump channel that is inclined downward in the direction of milk flow.

[0010] The wearable breast pump provided by this utility model preferably also includes a power source; the milk storage structure is made of transparent material; a light is provided on the outer wall of the milk storage structure; the illumination range of the light covers the inside of the milk storage structure; and the light circuit is connected to the power source.

[0011] The wearable breast pump provided by this utility model preferably includes a main shell; a negative pressure device is installed inside the main shell; the main shell and the milk storage structure are assembled in a front-to-back fit; the main shell has a milk suction hole through it in the front-to-back direction; the milk suction channel is inserted into the milk suction hole; the flared mouth is located on the side of the milk suction hole facing the breast; the milk storage structure has a milk inlet channel on the side facing the main shell; the outlet of the milk suction channel is inserted into the milk inlet channel and enters the interior of the milk storage structure.

[0012] The wearable breast pump provided by this utility model preferably has steel balls embedded in the inner wall of the breast pump hole facing each other; the breast pump channel has a groove corresponding to the position of the steel ball; the steel ball is embedded in the groove.

[0013] The wearable breast pump provided by this utility model preferably has a first limiting groove and a second limiting groove on the side of the main shell facing the milk storage structure. A first magnet is provided at the bottom of the first limiting groove and a second magnet is provided at the bottom of the second limiting groove. The milk storage structure is provided with a third magnet and a fourth magnet respectively at the positions corresponding to the first limiting groove and the second limiting groove. The magnetic poles of the first magnet and the third magnet are opposite. The magnetic poles of the second magnet and the fourth magnet are opposite.

[0014] The wearable breast pump provided by this utility model preferably has an annular protrusion at the inner root of the flared opening; the annular protrusion is arranged circumferentially along the inner wall of the flared opening; the annular protrusion has a flared structure and expands and extends towards the liquid inlet direction of the flared opening; the annular protrusion is coaxially arranged with the flared opening; the depth dimension of the annular protrusion towards the liquid inlet direction is not greater than the depth dimension of the flared opening towards the liquid inlet direction.

[0015] The above technical solution has the following advantages or beneficial effects: This utility model provides a wearable breast pump, relating to the field of maternal and infant devices, including a funnel-shaped opening, a breast pumping channel, a negative pressure device, and a milk storage structure; the breast pumping channel has an inlet and an outlet at both ends, and a negative pressure port is provided on the side wall of the breast pumping channel; the funnel-shaped opening is connected to the inlet; the milk storage structure is located at the outlet; the negative pressure end of the negative pressure device is connected to the negative pressure port; it also includes a valve plate; the valve plate is fitted to the circumferential side of the outlet and seals the outlet; the lower half of the valve plate can open towards the outside of the outlet. This utility model provides a wearable breast pump that, by using a partially opening valve plate at the outlet instead of a duckbill valve, shortens the downward extension depth of the valve body, thus avoiding situations where the valve cannot be opened, affecting normal use. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] Figure 1 This is a cross-sectional view of a wearable breast pump provided in Embodiment 1 of the present invention;

[0018] Figure 2 This is a frontal disassembly diagram of a wearable breast pump provided in Embodiment 1 of this utility model;

[0019] Figure 3 This is a rear-view disassembly diagram of a wearable breast pump provided in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram showing the position of the steel ball in a wearable breast pump according to Embodiment 1 of this utility model;

[0021] Figure 5 This is an overall structural diagram of a wearable breast pump provided in Embodiment 1 of this utility model;

[0022] Figure 1-5 Includes: 1. Trumpet-shaped opening; 2. Milk suction channel; 21. Liquid inlet; 22. Liquid outlet; 23. Negative pressure port; 24. Upper sheet; 25. Lower sheet; 26. Splicing line; 27. First opening; 28. Second opening; 3. Negative pressure device; 4. Milk storage structure; 41. Lighting lamp; 42. Milk inlet channel; 5. Main shell; 51. Milk suction hole; 52. Steel ball; 53. First limiting groove; 54. Second limiting groove; 55. Third magnet; 56. Fourth magnet; 6. Annular protrusion. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0024] Example 1:

[0025] like Figure 1-5 As shown:

[0026] This utility model provides a wearable breast pump, including a flared mouth 1, a breast pumping channel 2, a negative pressure device 3, and a milk storage structure 4; the breast pumping channel 2 has an inlet 21 and an outlet 22 at its two ends, and a negative pressure port 23 is opened on the side wall of the breast pumping channel 2; the flared mouth 1 is connected to the inlet 21; the milk storage structure 4 is located at the outlet 22; the negative pressure end of the negative pressure device 3 is connected to the negative pressure port 23; it also includes a valve plate; the valve plate is attached to the circumferential side of the outlet 22 and seals the outlet 22; the lower half of the valve plate can open towards the outside of the outlet 22.

[0027] In existing technology, the duckbill valve is vertically downward-facing. Due to its long valve disc, it extends into the milk storage bottle. When the milk storage bottle contains a large amount of milk, it submerges the valve disc, resulting in greater water pressure on the outside of the valve disc. This causes the pressure on the inside of the valve disc to be less than the pressure on the outside, preventing milk from flowing out. To ensure the breast pump functions properly, the milk expression channel 2 is horizontally positioned. The semi-open valve plate blocking the outlet 22 acts as a one-way valve, while also shortening the valve disc length and increasing the overall height of the valve body, preventing it from extending deep into the milk storage structure 4 and thus avoiding being submerged by milk. When the milk in the milk storage structure 4 submerges the valve plate, the water pressure generated by the submerged portion acts on the outside of the valve plate. Because the valve plate is positioned higher at the outlet 22, the pressure it experiences is relatively small even when submerged. Furthermore, only the lower half of the valve plate can open, and it is shorter than the valve disc of the duckbill valve, further reducing the force-bearing area. According to the pressure formula F = pS, when the pressure is constant, the smaller the area of ​​force application, the lower the pressure. Therefore, a half-open valve is less likely to experience a situation where the pressure on the inside is less than the pressure on the outside, and thus is less likely to be blocked.

[0028] The wearable breast pump provided by this utility model replaces the duckbill valve with a valve plate that can be partially opened, shortening the depth of the valve body extending downwards and avoiding the situation where the valve opening cannot be opened, thus affecting normal use.

[0029] To achieve a partially open valve plate, in a preferred embodiment, the valve plate includes an upper piece 24 and a lower piece 25. The upper piece 24 and the lower piece 25 are flexibly joined, forming a splicing line 26. The upper piece 24 is fixed to the outer edge of the upper half of the outlet 22 and seals the upper half of the outlet 22. The lower piece 25 is fitted to the outer edge of the lower half of the outlet 22 and seals the lower half of the outlet 22. When the internal pressure of the milk-suction channel 2 is greater than the external pressure, the lower piece 25 can fold outwards towards the outlet 22 with the splicing line 26 as the axis, and the lower piece 25 cannot fold inwards towards the outlet 22. Both the upper piece 24 and the lower piece 25 are made of soft rubber, and the upper piece 24 is integrally connected to the milk-suction channel 2 to achieve the purpose of sealing the upper half of the outlet 22. The lower piece 25 is only connected to the upper piece 24. When the pressure on the outside of the outlet 22 is greater than or equal to the pressure on the inside, the edge of the lower piece 25 adheres to the edge of the lower half of the outlet 22, thus sealing the lower half of the outlet 22. When the pressure on the outside of the outlet 22 is less than the pressure on the inside, the milk in the milk suction channel 2 pushes the lower piece 25 from the outlet 22 and flows into the milk storage structure 4. Because the lower piece 25 adheres to the outer edge of the lower half of the outlet 22, it cannot fold inward towards the outlet 22, thus forming a one-way valve structure that can replace the duckbill valve in the prior art.

[0030] The wearable breast pump provided by this utility model has a flexible spliced ​​upper piece 24 and a lower piece 25, and the upper piece 24 is fixedly connected to the liquid outlet 22, so that the lower piece 25 can be flexibly folded, providing an outlet for milk to flow out of the breast pumping channel 2.

[0031] Because the milk suction channel 2 repeatedly creates a negative pressure environment to suck out milk from the breast, this process causes milk splashing. The splashed milk easily travels through the negative pressure port 23 onto the negative pressure device 3, increasing the area requiring cleaning and making cleaning more troublesome. To prevent milk splashing onto the negative pressure device 3, in a preferred embodiment, the milk suction channel 2 is provided with a negative pressure channel; the negative pressure port 23 is located on the top side wall of the milk suction channel 2; the first opening 27 of the negative pressure channel is connected to the negative pressure port 23, and the second opening 28 of the negative pressure channel is connected to the negative pressure end of the negative pressure device 3; the first opening 27 and the second opening 28 of the negative pressure channel are staggered in height. By staggering the two ports of the negative pressure channel, milk splashing into the first opening 27 cannot directly splash onto the negative pressure device 3 through the second opening 28, thereby reducing the number of times the negative pressure device 3 needs cleaning.

[0032] To accelerate milk production, in a preferred embodiment, the milk suction channel 2 is inclined downwards in the direction of milk flow. By setting the milk suction channel 2 downwards, the milk inside can flow downwards more quickly, thereby accelerating milk production. On the other hand, it can prevent milk backflow caused by the user leaning back slightly.

[0033] When a user pumps milk in a dimly lit environment, it is difficult to see how much milk is stored inside the milk storage structure 4. To facilitate observation, a preferred embodiment of this invention also includes a power source; the milk storage structure 4 is made of a transparent material; an illumination lamp 41 is provided on the outer wall of the milk storage structure 4; the illumination range of the illumination lamp 41 covers the interior of the milk storage structure 4; and the circuit of the illumination lamp 41 is connected to the power source.

[0034] The wearable breast pump provided by this utility model has a transparent milk storage structure 4 and is equipped with a light 41 to illuminate the inside of the milk storage structure 4. Even when pumping in a dark environment, the user can see how much milk is accumulated inside the milk storage structure 4.

[0035] To integrate the flared opening 1, the milk suction channel 2, the negative pressure device 3, and the milk storage structure 4, a preferred embodiment of this invention further includes a main housing 5; the negative pressure device 3 is installed inside the main housing 5; the main housing 5 and the milk storage structure 4 are assembled in a front-to-back fit; the main housing 5 has a milk suction hole 51 extending through it in the front-to-back direction; the milk suction channel 2 is inserted into the milk suction hole 51; the flared opening 1 is located on the side of the milk suction hole 51 facing the breast; the milk storage structure 4 has a milk inlet channel 42 on the side facing the main housing 5; the outlet 22 of the milk suction channel 2 is inserted into the milk inlet channel 42 and enters the interior of the milk storage structure 4. The main housing 5 and the milk storage structure 4 are assembled in a front-to-back fit. The end of the milk suction channel 2 that passes through the milk suction hole 51 and has the outlet 22 is inserted into the milk inlet channel 42 of the milk storage structure 4, so that the outlet 22 is located inside the milk storage structure 4. The flared opening 1 is integrally connected to the inlet 21 of the milk suction channel 2, and after installation, it is located on the front side of the milk suction hole 51, that is, the side closer to the breast.

[0036] To achieve relative fixation between the breast pumping channel 2 and the main housing 5, in a preferred embodiment, steel balls 52 are embedded in opposite directions on the inner wall of the breast pumping hole 51; grooves are provided in the breast pumping channel 2 corresponding to the positions of the steel balls 52; the steel balls 52 are embedded in the grooves. Grooves are provided on both sides of the outer wall of the breast pumping channel 2, and embedding the steel balls 52 into the grooves can limit the position of the breast pumping channel 2, thereby fixing the breast pumping channel 2 relative to the main housing 5.

[0037] When installing the main housing 5 and the milk storage structure 4, they need to be aligned. To improve the alignment speed of the two components, in a preferred embodiment, the main housing 5 has a first limiting groove 53 and a second limiting groove 54 on the side facing the milk storage structure 4. A first magnet is provided at the bottom of the first limiting groove 53, and a second magnet is provided at the bottom of the second limiting groove 54. The milk storage structure 4 has a third magnet 55 and a fourth magnet 56 respectively corresponding to the positions of the first limiting groove 53 and the second limiting groove 54. The magnetic poles of the first magnet and the third magnet 55 are opposite; the magnetic poles of the second magnet and the fourth magnet 56 are opposite. When the main housing 5 and the milk storage structure 4 approach each other, the magnets in the first limiting groove 53 and the second limiting groove 54 attract the two magnets on the milk storage structure 4, facilitating installation and positioning.

[0038] To improve the sealing reliability of the breast pump, in a preferred embodiment, an annular protrusion 6 is provided at the inner root of the flared opening 1; the annular protrusion 6 is arranged circumferentially along the inner wall of the flared opening 1; the annular protrusion 6 has a flared structure and expands and extends towards the liquid inlet direction of the flared opening 1; the annular protrusion 6 is coaxially arranged with the flared opening 1; the depth dimension of the annular protrusion 6 towards the liquid inlet direction is not greater than the depth dimension of the flared opening 1 towards the liquid inlet direction.

[0039] When applying pressure to the breast for expression, first press the bell-shaped opening 1 against the breast, aligning the annular protrusion 6 with the areola. Pressing this closed creates a sealed space between the annular protrusion 62 and the areola, and also a sealed area between the breast area around the areola and the bell-shaped opening 1. Even if the annular protrusion 6 separates from the areola during expression and the seal is lost, the sealed area between the breast area around the areola and the bell-shaped opening 1 ensures the breast pump continues to function normally.

[0040] The present invention provides a flared mouth 1 for a breast pump, which can form two sealing areas on the breast by setting an annular protrusion 6, thereby effectively improving the sealing reliability of the breast pump; the annular protrusion 6 can better fit the areola area and adapt to breasts of different shapes by attaching to the areola, thereby improving the ease of use.

[0041] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application filed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

[0042] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A wearable breast pump, comprising a funnel-shaped opening, a milk suction channel, a negative pressure device, and a milk storage structure; the milk suction channel has an inlet and an outlet at its two ends, and a negative pressure port is provided on the side wall of the milk suction channel; the funnel-shaped opening is connected to the inlet; the milk storage structure is located at the outlet; the negative pressure end of the negative pressure device is connected to the negative pressure port; characterized in that, It also includes a valve plate; the valve plate is attached to the annular side of the liquid outlet and seals the liquid outlet; the lower half of the valve plate can open towards the outside of the liquid outlet.

2. The wearable breast pump according to claim 1, characterized in that, The valve plate includes an upper plate and a lower plate; the upper plate and the lower plate are flexibly spliced ​​together to form a splicing line; the upper plate is fixed to the outer edge of the upper half of the liquid outlet and seals the upper half of the liquid outlet; the lower plate is attached to the outer edge of the lower half of the liquid outlet and seals the lower half of the liquid outlet; when the internal pressure of the milk suction channel is greater than the external pressure, the lower plate can fold outward toward the liquid outlet with the splicing line as the axis, and the lower plate cannot fold inward toward the liquid outlet.

3. The wearable breast pump according to claim 1, characterized in that, The breast pumping channel is provided with a negative pressure channel; the negative pressure port is opened on the top side wall of the breast pumping channel; the first opening of the negative pressure channel is connected to the negative pressure port, and the second opening of the negative pressure channel is connected to the negative pressure end of the negative pressure device; the first opening and the second opening of the negative pressure channel are staggered from each other in the height direction.

4. The wearable breast pump according to claim 1, characterized in that, The milk suction channel is inclined downward in the direction of milk flow.

5. The wearable breast pump according to claim 1, characterized in that, It also includes a power supply; the milk storage structure is made of transparent material; a lighting lamp is provided on the outer wall of the milk storage structure; the lighting range of the lighting lamp covers the interior of the milk storage structure; the lighting lamp circuit is connected to the power supply.

6. The wearable breast pump according to claim 1, characterized in that, It also includes a main housing; the negative pressure device is installed inside the main housing; the main housing and the milk storage structure are assembled together in a front-to-back fit; the main housing has a milk suction hole through it in the front-to-back direction; the milk suction channel is inserted into the milk suction hole; the flared opening is located on the side of the milk suction hole facing the breast; the milk storage structure has a milk inlet channel on the side facing the main housing; the outlet of the milk suction channel is inserted into the milk inlet channel and enters the interior of the milk storage structure.

7. The wearable breast pump according to claim 6, characterized in that, The inner walls of the breast suction holes are embedded with steel balls facing each other; the breast suction channels are provided with grooves corresponding to the positions of the steel balls; the steel balls are embedded in the grooves.

8. The wearable breast pump according to claim 6, characterized in that, The main housing has a first limiting groove and a second limiting groove on the side facing the milk storage structure. The bottom of the first limiting groove is provided with a first magnet, and the bottom of the second limiting groove is provided with a second magnet. The milk storage structure is provided with a third magnet and a fourth magnet respectively corresponding to the positions of the first limiting groove and the second limiting groove. The magnetic poles of the first magnet and the third magnet are opposite. The magnetic poles of the second magnet and the fourth magnet are opposite.

9. The wearable breast pump according to claim 1, characterized in that, An annular protrusion is provided at the inner root of the flared opening; the annular protrusion is arranged circumferentially along the inner wall of the flared opening; the annular protrusion has a flared structure and expands and extends towards the liquid inlet direction of the flared opening; the annular protrusion is coaxially arranged with the flared opening; the depth dimension of the annular protrusion towards the liquid inlet direction is not greater than the depth dimension of the flared opening towards the liquid inlet direction.

Images