Wearable breast pump

Abstract

The utility model discloses a wearable breast pump which comprises a breast collecting cover with a breast collecting space, a three-way piece arranged in the breast collecting cover and a lining cover connected with a breast pumping connector end of the three-way piece, the lining cover is in a trumpet shape and used for being attached to the front end of a breast, and when the lining cover is connected with the three-way piece, the lining cover is in a trumpet shape and used for being attached to the front end of the breast. A groove-shaped gap is reserved between the outer side wall of the narrow opening end of the lining cover and the inner side wall of the milk suction connector end of the three-way piece, and the groove-shaped gap forms a local milk storage groove used for preventing milk from flowing back to the lining cover. When the breast pump works, milk normally flows into the milk collecting space in the milk collecting cover through the lining cover and the three-way piece in a negative pressure state. When the thin opening end of the lining cover is in a low position relative to the breast pumping connector end of the three-way piece due to reasons such as body posture adjustment of a user, a small amount of milk can flow into the groove-shaped gap to be temporarily stored in a centralized mode even if the milk flows back due to the self-weight effect, the milk cannot flow into the lining cover reversely to soak the skin around the breast, and the comfort of the user in the breast pumping process can be improved.

Description

Technical Field

[0001] This utility model relates to the field of maternal and infant products technology, specifically to a wearable breast pump. Background Technology

[0002] Wearable breast pumps are a typical design among various types of breast pumps currently available. In early designs, wearable breast pumps only had a simple, trumpet-shaped outer casing. Due to the significant differences in the shape of human breasts, this simple outer casing often failed to fit well against the skin at the front of the breast, resulting in a large gap between the front of the breast and the inner wall of the casing. During use, this large gap reduced the negative pressure suction effect, decreased milk expression efficiency, and increased the likelihood of milk leakage.

[0003] In the evolution design, the wearable breast pump has an integrated, replaceable small inner liner inside the outer casing. This inner liner is used to cover the front of the breast while the outer casing covers the entire breast, reducing the negative pressure suction gap at the front of the breast. This improvement enhances the milk expression effect.

[0004] However, through long-term customer feedback tracking and product iteration design, the inventors discovered that the replaceable inner liner component in the aforementioned breast pump also has significant room for design optimization. In conventional designs, the narrow end of the inner liner is tightly connected and smoothly transitions to the milk expression interface of the breast pump's three-way connector. This causes some milk that has entered the three-way connector to flow back into the inner liner when the user slightly adjusts their body posture. This small amount of backflow wets the skin around the breast, causing discomfort and a poor user experience. Utility Model Content

[0005] The purpose of this utility model is to at least partially solve one of the technical problems in the related art. In view of this, a wearable breast pump is provided, including a breast pump cover with a milk collection space, a three-way connector disposed inside the breast pump cover, and an inner liner connected to the milk suction port end of the three-way connector. The inner liner is flared and is used to attach to the front of the breast. When the inner liner and the three-way connector are connected, a groove-shaped gap is left between the outer wall of the narrow end of the inner liner and the inner wall of the milk suction port end of the three-way connector. The groove-shaped gap constitutes a local milk storage groove for preventing milk from flowing back into the inner liner.

[0006] Compared with existing technologies, the technical solution of this utility model has the following advantages: By iteratively optimizing the structure of the wearable breast pump, a groove-shaped gap is made at the connection between the inner liner and the three-way connector. When the breast pump is working, under negative pressure, the milk flows normally through the inner liner and the three-way connector into the milk collection space inside the breast collection shield. When the user's body posture adjustment causes the narrow end of the inner liner to be in a lower position relative to the milk suction interface end of the three-way connector, even if a small amount of milk flows backward due to its own weight, it will flow into the groove-shaped gap for temporary collection and storage, instead of flowing back into the inner liner and wetting the skin around the breast, thus improving the user's comfort during the breast pumping process.

[0007] According to one example of this utility model, the outer wall of the narrow end of the inner liner is provided with a concave milk storage space; or, the inner wall of the breast pumping port end of the three-way connector is provided with a concave milk storage space; or, the outer wall of the narrow end of the inner liner and the inner wall of the breast pumping port end of the three-way connector are arranged at an angle with a gap.

[0008] According to one example of the present invention, the inner liner is detachably mounted on the tee.

[0009] According to one example of the present invention, one of the three-way fitting and the inner liner is provided with a connecting slot, and the other is provided with a connecting protrusion that is adapted to be inserted into the connecting slot.

[0010] According to one example of the present invention, the inner edge of the narrow end of the liner is provided with a smooth rounded corner.

[0011] According to one example of the present invention, the outer wall of the flared end of the inner liner is provided with an air cushion groove extending toward the middle portion of the inner liner.

[0012] According to one example of the present invention, it also includes a trumpet-shaped outer cover for covering the periphery of the breast, wherein the outer wall of the wide end of the outer cover is connected to the outer edge of the breast collection shield and closes the breast collection space, and one of the outer cover and the breast collection shield is provided with a positioning slot, and the other is provided with a positioning block that is adapted to be inserted into the positioning slot to align and fix the outer cover and the breast collection shield.

[0013] According to one example of the present invention, the side of the three-way fitting with the breast suction interface end is flared and integrally formed with the narrow end of the annular outer cover body by being coated with rubber.

[0014] According to one example of this utility model, the tee is a PPSU plastic part, and the outer cover is a silicone rubber part.

[0015] According to one example of the present invention, it also includes a control host with a negative pressure air pump, the negative pressure air pump being connected to the negative pressure interface end of the three-way fitting through a negative pressure pipeline, and the milk outlet end of the three-way fitting being connected to the milk collection space of the milk collection shield through a one-way duckbill valve.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an axonometric structural diagram of a wearable breast pump according to an embodiment of this utility model.

[0019] Figure 2 This is a front view structural diagram of a wearable breast pump according to an embodiment of this utility model.

[0020] Figure 3 This is a utility model Figure 2 A sectional view along line AA.

[0021] Figure 4 This is a utility model Figure 3 Enlarged structural diagram of part A.

[0022] Figure 5 This is a utility model Figure 3 A magnified diagram of the B-structure.

[0023] Figure 6 This is a structural diagram of the inner liner of this utility model.

[0024] The attached figures are labeled as follows: 1. Breast collection cover; 1a. Breast collection space; 2. T-joint; 2a. Breast suction interface end; 2b. Connecting slot; 2c. Negative pressure interface end; 2d. Milk outlet interface end; 3. Inner liner; 3a. Connecting protrusion; 3b. Smooth rounded corner; 3c. Air cushion groove; 4. Outer cover; 5. Positioning slot; 6. Positioning block; 7. Negative pressure pipeline; 8. One-way duckbill valve; X. Groove gap. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0026] Please see Figures 1-6 As shown, this utility model provides a wearable breast pump, including a breast pump cover 1 with a breast pumping space 1a, a three-way connector 2 disposed inside the breast pump cover 1, and an inner liner 3 connected to the breast pumping interface end 2a of the three-way connector 2. The inner liner 3 is flared and is used to attach to the front of the breast. When the inner liner 3 and the three-way connector 2 are connected, a groove-shaped gap X is left between the outer wall of the narrow end of the inner liner 3 and the inner wall of the breast pumping interface end 2a of the three-way connector 2. The groove-shaped gap X constitutes a local milk storage groove for preventing milk from flowing back into the inner liner 3.

[0027] In this implementation, the structure of the wearable breast pump is iteratively optimized by creating a groove-shaped gap X at the connection between the inner liner 3 and the three-way connector 2. When the breast pump is working, under negative pressure, the milk flows normally through the inner liner 3 and the three-way connector 2 into the milk collection space 1a inside the milk collection cover 1. When the user's body posture causes the narrow end of the inner liner 3 to be in a lower position relative to the milk suction interface end 2a of the three-way connector 2, even if a small amount of milk flows backward due to its own weight, it will flow into the groove-shaped gap X for temporary collection and storage, instead of flowing back into the inner liner 3 and wetting the skin around the breast, thus improving the user's comfort during the milk pumping process.

[0028] There are many design directions for realizing the groove-shaped gap X. As a first implementation, the outer wall of the narrow end of the inner liner 3 is provided with a concave milk storage space; or, as a second implementation, the inner wall of the breast pumping interface 2a of the three-way component 2 is provided with a concave milk storage space; or, as a third implementation, neither the outer wall of the narrow end of the inner liner 3 nor the inner wall of the breast pumping interface 2a of the three-way component is designed with a groove, and the two are arranged at an angle with a gap. For example, the narrow end of the inner liner 3 can be designed to be a tapered design that gradually narrows, forming an angled gap with the inner wall of the straight breast pumping interface 2a.

[0029] Preferably, the inner liner 3 is detachably mounted on the tee fitting 2, allowing for replacement with an appropriate size inner liner 3 according to the user's actual needs and facilitating thorough cleaning. As one detachable design, one of the tee fitting 2 and the inner liner 3 has a connecting groove, and the other has a connecting protrusion that fits into the connecting groove. In this embodiment, the tee fitting 2 is specifically designed with a connecting groove 2b, and correspondingly, the inner liner 3 has a connecting protrusion 3a that fits into the connecting groove 2b in a removable and elastic manner.

[0030] According to one example of this utility model, the inner edge of the narrow end of the inner liner 3 is provided with a smooth rounded corner 3b. Because the negative pressure system of the breast pump performs high-frequency periodic negative pressure suction during operation, and the narrow end of the inner liner 3 has an anti-backflow gap, the end of the inner liner 3 at the narrow end will have undulating deformation. Without a smooth rounded corner design, the end of the inner liner 3 will scrape against the breast skin during breast pump operation, causing discomfort to the user. The smooth rounded corner 3b design is used to solve this problem.

[0031] According to one example of this utility model, the outer wall of the flared end of the inner liner 3 is provided with an air cushion groove 3c extending toward the middle part of the inner liner 3. The design of the air cushion groove 3c makes the flared end of the inner liner 3 form a relatively long suspended imitation air cushion structure, which is soft and elastic, and has a good soft lifting effect on the breast area, which can improve the user experience.

[0032] According to one example of this utility model, the breast pump also includes a trumpet-shaped outer cover 4 for covering the periphery of the breast. The outer cover 4 is the front cover of the wearable breast pump that contacts the user's breast. In this embodiment, the breast collection shield 1 has an opening. The outer wall of the wider end of the outer cover 4 is connected to the outer edge of the breast collection shield 1 (i.e., the opening of the breast collection shield 1) and closes the breast collection space 1a. As one of the detachable connection and fixing methods, one of the outer cover 4 and the breast collection shield 1 is provided with a positioning groove, and the other is provided with a positioning block that fits into the positioning groove to align and fix the outer cover 4 and the breast collection shield 1. Preferably, in this embodiment, the top outer wall of the outer cover 4 is provided with a positioning groove 5, and the top of the breast collection shield 1 is provided with a positioning block 6 that fits into the positioning groove 5 at the opening end. This method of installation by snapping on the outside from the top is convenient to observe and is quick and efficient to assemble and disassemble.

[0033] Preferably, the side of the three-way connector 2 with the breast suction interface end 2a is flared and integrally formed with the narrow end of the outer cover 4. In this embodiment, the three-way connector 2 is designed to fit the breast suction end with the outer cover 4. During processing and manufacturing, the two are integrally formed with adhesive, which can reduce unnecessary parts, making the whole lighter and the connection more stable.

[0034] Preferably, the aforementioned tee part 2 is made of PPSU plastic, which has a heat resistance temperature of up to 207℃, allowing it to withstand repeated high-temperature boiling and steam sterilization. It also has strong acid and alkali resistance, can withstand cleaning with general detergents without causing chemical changes, and possesses superior properties such as being non-toxic and lightweight. The outer cover 4 is made of silicone rubber, which has excellent heat resistance, cold resistance, dielectric properties, ozone resistance, and aging resistance, and can be used over a wide temperature range.

[0035] The breast pump disclosed in this embodiment also includes a control unit with a negative pressure pump, which is a common component of wearable breast pumps, and its structure and working principle will not be described in detail here. Furthermore, in the other interfaces of the three-way connector 2, the negative pressure pump is connected to the negative pressure interface end 2c of the three-way connector 2 via a negative pressure pipeline 7, and is used to periodically provide negative pressure suction under the action of the control unit. The milk outlet end 2d of the three-way connector 2 is connected to the milk collection space 1a of the breast collection cover 1 via a one-way duckbill valve 8, and is used to introduce the milk suctioned out by negative pressure into the breast collection cover 1 for storage.

[0036] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0039] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. A wearable breast pump, comprising a breast collection shield (1) having a breast collection space (1a), a three-way connector (2) disposed within the breast collection shield (1), and an inner liner (3) connected to the breast pumping interface end (2a) of the three-way connector (2), the inner liner (3) being flared for attaching to the front of the breast, characterized in that: When the inner liner (3) is connected to the three-way connector (2), a groove-shaped gap (X) is left between the outer wall of the narrow end of the inner liner (3) and the inner wall of the milk suction interface end (2a) of the three-way connector (2). The groove-shaped gap (X) constitutes a local milk storage tank to prevent milk from flowing back into the inner liner (3).

2. The wearable breast pump according to claim 1, characterized in that: The inner liner (3) has a concave milk storage space on the outer wall of the narrow end; or, the three-way connector (2) has a concave milk storage space on the inner wall of the milk suction port (2a); or, the outer wall of the narrow end of the inner liner (3) and the inner wall of the milk suction port (2a) of the three-way connector (2) are arranged at an angle with a gap.

3. The wearable breast pump according to claim 1, characterized in that: The inner liner (3) is detachably mounted on the tee (2).

4. The wearable breast pump according to claim 3, characterized in that: One of the three-way connector (2) and the inner liner (3) is provided with a connecting slot (2b), and the other is provided with a connecting protrusion (3a) that is adapted to be inserted into the connecting slot (2b).

5. The wearable breast pump according to claim 1, characterized in that: The inner edge of the narrow end of the inner liner (3) is provided with a smooth rounded corner (3b).

6. The wearable breast pump according to claim 1, characterized in that: The outer wall of the flared end of the inner liner (3) is provided with an air cushion groove (3c) extending toward the middle part of the inner liner (3).

7. The wearable breast pump according to claim 1, characterized in that: It also includes a trumpet-shaped outer cover (4) for covering the outer periphery of the breast. The outer wall of the outer cover (4) is connected to the outer edge of the breast collection shield (1) and closes the breast collection space (1a). One of the outer cover (4) and the breast collection shield (1) is provided with a positioning slot (5), and the other is provided with a positioning block (6) that is adapted to be inserted into the positioning slot (5) to align and fix the outer cover (4) and the breast collection shield (1).

8. The wearable breast pump according to claim 7, characterized in that: The side of the three-way component (2) with the breast suction interface end (2a) is flared and integrally formed with the narrow end of the annular outer cover (4) by coating.

9. The wearable breast pump according to claim 8, characterized in that: The three-way connector (2) is a PPSU plastic part, and the outer cover (4) is a silicone rubber part.

10. The wearable breast pump according to claim 1, characterized in that: It also includes a control host with a negative pressure air pump, the negative pressure air pump being connected to the negative pressure interface end (2c) of the three-way fitting (2) through a negative pressure pipeline (7), and the milk outlet end (2d) of the three-way fitting (2) being connected to the milk collection space (1a) of the milk collection shield (1) through a one-way duckbill valve (8).

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