Wearable breast pump
By designing the breast pump so that the pumping parts and controller are connected via an air tube, and the belt is equipped with a tightening device to automatically adjust the tightness, the problem of discomfort when wearing existing wearable breast pumps is solved, improving the convenience and flexibility of use and making it easy to carry.
Patent Information
- Application Number
- CN202422689495.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing wearable breast pumps are heavy due to the integration of the main unit and the milk bowl, making them uncomfortable to wear, inconvenient to adjust the suction power, and have a small storage capacity, which limits their convenience and flexibility of application.
The design incorporates elastic elements, including an automatic adjuster. By wearing the breast pump on the body, the pump is connected to the controller via an air tube. The controller has a belt and a tightening device. The belt automatically adjusts its tightness using elastic elements. The controller also contains an air pump and a solenoid valve, enabling automatic milk suction and rapid position adjustment.
It makes breast pumping more comfortable to wear, automatically adjusts the tightness of the strap, improves ease of use and flexibility, is easy to carry, suitable for use when going out, and increases the user's freedom.
Smart Images

Figure CN223504605U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maternal and infant products technology, and in particular to a wearable breast pump. Background Technology
[0002] With the fast pace of modern life, more and more professional women are choosing to continue working after childbirth. To meet the nutritional needs of infants while ensuring the mother's work efficiency, various types of portable breast pumps have emerged on the market. While traditional handheld breast pumps are easy to operate, they require manual support during use, which is inconvenient for busy mothers. Wearable breast pumps, while freeing up the hands, have several drawbacks: the integrated main unit and milk container make the whole device heavy, resulting in less comfortable wear; suction adjustment is inconvenient; and the milk container capacity is small. These issues limit their wider application.
[0003] How to make breast pumping more convenient and comfortable while wearing the device is a question that researchers in this field have been exploring.
[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content
[0005] This invention overcomes the shortcomings of the prior art and provides a wearable breast pump that frees up your hands and makes breast pumping more comfortable.
[0006] This utility model is achieved through the following technical solution:
[0007] A wearable breast pump includes a breast pump that fits against the breast and a controller that controls the breast pump to pump milk. The breast pump is connected to the controller via an air tube. The controller is provided with a strap for wearing the controller on the human body and a tightening device for tightening the strap.
[0008] As described above, in a wearable breast pump, the tightening device includes an elastic element disposed on the controller and capable of elastic deformation. The elastic element is connected to the controller, the tail end of the belt is connected to the elastic element, and the head end of the belt is connected to the outer wall of the controller.
[0009] As described above, a wearable breast pump has a first receiving cavity in the controller, a connecting block in the first receiving cavity, an extension hole communicating with the first receiving cavity on the outer wall of the controller, and an elastic element including a coil spring, the tail end of the coil spring being connected to the connecting block, the head end of the coil spring being connected to the belt, and the head end of the belt extending out from the extension hole and connected to the outer wall of the controller.
[0010] As described above, a wearable breast pump has a milk suction cavity on one side of the suction device, an air pressure cavity and a milk storage cavity inside the suction device, a flexible diaphragm separating the milk suction cavity and the air pressure cavity, a guide device between the milk suction cavity and the milk storage cavity that can drain the milk in the milk suction cavity into the milk storage cavity, and a milk discharge port communicating with the milk storage cavity at the upper part of the suction device.
[0011] As described above, a wearable breast pump includes a breast shield and an outer cover connected to the outside of the breast shield. The air pressure chamber and the milk storage chamber are both located between the outer cover and the breast shield, and the milk suction cavity is located at the front end of the breast shield.
[0012] As described above, a wearable breast pump has an open opening at the front end of the outer cover and a first annular tube on the inner rear wall of the outer cover. The breast shield includes a second annular tube that can be inserted into the first annular tube to connect the breast shield to the outer cover. The front end of the second annular tube has a blocking part for sealing the open opening. The front end of the outer cover also has an outwardly extending outer edge, and the blocking part has a snap-fit groove for inserting the outer edge.
[0013] As described above, in a wearable breast pump, the flexible diaphragm is disposed on the inner wall of the second annular tube, the milk suction cavity is disposed on the front side of the flexible diaphragm, and the air pressure cavity is disposed on the rear side of the flexible diaphragm.
[0014] As described above, a wearable breast pump has a support frame inside the bra to enhance its strength.
[0015] As described above, in a wearable breast pump, a cover that can open the air pressure chamber is detachably connected to the outer cover, and the cover is provided with an air tube connector that communicates with the air pressure chamber.
[0016] As described above, a wearable breast pump includes a controller comprising a housing, a second receiving cavity within the housing, an air pump, a solenoid valve, a control circuit board, and a battery. The input end of the solenoid valve is connected to an air pipe connector via an air pipe, and the output end of the solenoid valve is connected to the input end of the air pump via an air pipe. The controller also includes a control switch for controlling the operation of the air pump and the solenoid valve, and the housing also includes a charging port for charging the battery.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] The solution proposed in this application allows users to wear the breast pump around their neck, collar, or arm, enabling them to perform other activities while pumping milk, greatly improving convenience and flexibility. The automatic tightening device adjusts the tightness of the strap according to individual body characteristics, ensuring a comfortable and secure fit. Furthermore, the controller position can be quickly and easily adjusted, eliminating the need for frequent manual adjustments and enhancing the user experience. The compact and portable design of the entire device makes it suitable for use when out and about, freeing breastfeeding from the constraints of specific locations and increasing user freedom. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the controller, belt body, and tightening device in this utility model;
[0022] Figure 3 This is an exploded view of the breast pump component in this utility model. Figure 1 ;
[0023] Figure 4 This is an exploded view of the breast pump component in this utility model. Figure 2 ;
[0024] Figure 5 This is a cross-sectional schematic diagram of the milk suction component in this utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0027] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0030] like Figures 1 to 5 The wearable breast pump shown includes a breast pump 1 that fits against the breast and a controller 2 that controls the breast pump 1 to pump milk. The breast pump 1 is connected to the controller 2 via an air tube 50. The controller 2 is provided with a strap 3 for wearing the controller 2 on a person's neck or arm. The controller 2 is also provided with a tightening device 4 for tightening the strap 3.
[0031] This design allows users to perform other activities while expressing milk by wearing the controller 2 on their neck or arm and attaching the breast pump 1 to their breast, greatly improving convenience and flexibility. The automatic tightening device 4 can automatically adjust the tightness of the strap 3 according to individual body characteristics, ensuring the device is both comfortable and secure. Furthermore, the controller 2 can be quickly and easily adjusted without frequent manual adjustments, enhancing the user experience. The entire device is compact and portable, suitable for use when out and about, freeing breastfeeding from the constraints of specific locations and increasing user freedom.
[0032] In one embodiment, the tightening device 4 includes an elastic element 41 disposed on the controller 2 and capable of elastic deformation. The elastic element 41 is connected to the controller 2, the tail end of the strap 3 is connected to the elastic element 41, and the head end of the strap 3 is connected to the outer wall of the controller 2. When it is necessary to wear the strap, the strap 3 is pulled to cause the elastic element 41 to elastically deform. After the strap is worn around the neck or arm, the strap 3 is released, and the elastic element 41 returns to its original position, thereby tightening the strap 3.
[0033] Furthermore, the controller 2 is provided with a first receiving cavity 210, and a connecting block 220 is provided within the first receiving cavity 210. An extension hole 230 communicating with the first receiving cavity 210 is provided on the outer wall of the controller 2. The elastic element 41 includes a coil spring, the tail end of which is connected to the connecting block 220, and the head end of which is connected to the belt body 3. The head end of the belt body 3 extends from the extension hole 230 and is connected to the outer wall of the controller 2. The tail end of the coil spring can be snapped onto the connecting block 220, or it can be connected to the connecting block 220 using threaded fasteners or other connecting structures.
[0034] Furthermore, the tail end of the belt body 3 can be tied to the coil spring, or it can be connected to the coil spring using other connecting structures such as threaded fasteners. The head end of the belt body 3 can be tied to the controller 2, or it can be connected to the controller 2 using other connecting methods such as adhesive bonding.
[0035] In one embodiment, the tightening device 4 includes a rotating shaft located within the controller 2. The tail end of the belt 3 is connected to the rotating shaft, and the head end is connected to the outer wall of the controller 2. The belt 3 can be tightened by rotating the rotating shaft driven by a motor. Furthermore, a torque sensing system can be installed inside the motor to automatically stop the motor when the torque of the rotating shaft reaches a preset value. Alternatively, a rotating handle can be installed on the controller to adjust the rotating shaft. Once the desired tightness is achieved, the rotating shaft or handle can be locked by a locking structure to prevent the belt 3 from automatically loosening. The locking structure can be a clamp structure or a top-pressure locking mechanism using threaded components.
[0036] In one embodiment, the tightening device 4 includes buckles, concealed buckles, locks, etc., provided on the belt body 3.
[0037] In some embodiments, the controller 2 includes a housing 21, within which a second receiving cavity 211 is provided. The second receiving cavity 211 houses an air pump 22, a solenoid valve 23, a control circuit board 24, and a battery 25. The input end of the solenoid valve 23 is connected to an air pipe 50 connector 81 via an air pipe 50, and the output end of the solenoid valve 23 is connected to the input end of the air pump 22 via an air pipe 50. The controller 2 also includes a control switch 26 for controlling the operation of the air pump 22 and the solenoid valve 23. The housing 21 also includes a charging port 27 for charging the battery 25. The air pump 22 can draw air from the milk suction device 1 to create negative pressure and extract milk. The air pump 22 and the solenoid valve 23 are connected to the control circuit board 24, which is connected to the battery 25. The charging port 27 is also connected to the battery 25.
[0038] In some embodiments, the air pump 22 described above can be a piezoelectric ceramic pump, which reduces weight and noise compared to other air pumps. Of course, other types of air pumps can also be used.
[0039] In some embodiments, the milk suction device 1 has a milk suction cavity 5 on one side, and a pressure chamber 6 and a milk storage chamber 7 are also provided inside the milk suction device 1. A flexible diaphragm 10 is provided between the milk suction cavity 5 and the pressure chamber 6 to separate the two. A guide 20 is provided between the milk suction cavity 5 and the milk storage chamber 7 to drain the milk in the milk suction cavity 5 into the milk storage chamber 7. The upper part of the milk suction device 1 is provided with a milk discharge port 30 communicating with the milk storage chamber 7. The output end of the guide 20 is a narrowed opening.
[0040] In use, when the air pump 22 draws air from the air pressure chamber 6, a negative pressure is created in the air pressure chamber 6. The flexible diaphragm 10 deforms under the external pressure, reducing the space in the air pressure chamber 6. Milk is drawn out and flows into the milk suction cavity 5, then along the guide 20 into the milk storage cavity 7 for storage. When the solenoid valve 23 blocks the air pump 22 from drawing air, the air pressure chamber 6 draws in outside air, equalizing the internal and external pressures. The flexible diaphragm 10 returns to its original shape, and milk suction ends. This cycle continues until one milk suction cycle is completed. After the cycle, the milk is poured out from the milk outlet 30. The flexible diaphragm 10 can be made of breathable silicone, or other materials.
[0041] In some embodiments, the breast pump 1 includes a bra 11 and an outer cover 12 connected to the outside of the bra 11. The bra 11 and the outer cover 12 can be a single piece or separate pieces connected together by a connecting structure. Specifically, the breast pump 1 includes a bra 11 and an outer cover 12 connected to the outside of the bra 11. The air pressure chamber 6 and the milk storage chamber 7 are both located between the outer cover 12 and the bra 11, and the milk suction cavity 5 is located at the front end of the bra 11. The bra 11 can be made of silicone or other materials. This design supports both single and separate structures, allowing users to choose the most suitable style according to their needs. For components that require frequent cleaning, the separate design is more convenient.
[0042] In some embodiments, the outer cover 12 has an opening 121 at its front end and a first annular tube 122 on its rear inner wall. The bra 11 includes a second annular tube 112 that can be inserted into the first annular tube 122 to connect the bra 11 to the outer cover 12. The front end of the second annular tube 112 has a blocking portion 113 for sealing the opening 121. The open end of the outer cover 12 has an outwardly extending outer edge 123. The blocking portion 113 has a snap-fit groove 114 for inserting the outer edge 123. The second annular tube 112 and the shielding part 113 are integral structures. The outer wall of the second annular tube 112 can be provided with a first annular protrusion 1121 to increase the friction with the inner wall of the first annular tube 122, thereby restricting the second annular tube 112 from coming off. At the same time, the first annular protrusion 1121 also has a certain sealing effect. Furthermore, the inner wall of the first annular tube 122 can also be provided with a first slot for it to be inserted at the position corresponding to the first annular protrusion 1121, so that the connection is tighter.
[0043] In some embodiments, a pull ring or handle 1130 is provided on the outer edge of the shielding portion 113 to facilitate the removal of the breast pump 1.
[0044] In some embodiments, the bra 11 includes a frame 1312 to enhance its strength. The frame 1312 can be an injection-molded part or a metal part. The frame 1312 provides additional support, ensuring the bra 11 maintains its shape during use and avoids deformation, especially during breastfeeding, as the negative pressure during breastfeeding can cause the bra 11 to deform, affecting the breastfeeding effect. The frame 1312 can significantly enhance the overall structural strength of the bra 11, extending the product's lifespan. The design of the frame 1312 can be adjusted according to different needs; for example, the injection-molded part can be designed into a more complex shape to accommodate different breast shapes.
[0045] In some embodiments, a cover 8 that can open the air pressure chamber 6 is detachably connected to the outer cover 12, thereby facilitating disassembly and cleaning. The cover 8 is provided with an air pipe 50 connector 81 that communicates with the air pressure chamber 6, and is connected to the air pipe 50 at the input end of the solenoid valve 23 through the air pipe 50 connector 81. The cover 8 can be connected to the outer cover 12 by snap-fit, or it can be connected to the cover 8 by interference fit or other connection structures.
[0046] In some embodiments, there are two milk suction devices 1, which correspond to the two breasts of a human body. There are two solenoid valves 23 in the second receiving cavity 211. One solenoid valve 23 controls one milk suction device 1. The output ends of the two solenoid valves 23 are connected to the input end of the air pump 22 through a three-way valve. The output end of the air pump 22 discharges gas to the outside.
[0047] The two breast pumps 1 are each controlled by an independent solenoid valve 23, enabling simultaneous pumping from both breasts, mimicking a baby's natural sucking action and improving pumping efficiency. The operating modes of the two solenoid valves 23 can be adjusted to flexibly switch between single-sided and double-sided pumping, meeting different needs. Simultaneous pumping from both sides significantly shortens the total pumping time, increases efficiency, and reduces the burden on the mother. The combined design of the two solenoid valves 23 and the air pump 22 ensures stable system operation; even if one solenoid valve 23 fails, the other can continue operating, providing a backup solution. Through a three-way connection, the air pump 22 can centrally manage gas flow, ensuring the overall reliability of the system. The separately controlled breast pumps 1 reduce the risk of cross-contamination, ensuring an independent and clean pumping environment for each breast.
[0048] This utility model provides a wearable breast pump, including a breast pump component 1 that fits snugly against the breast and a controller 2 that controls the breast pump component 1 to pump milk. The breast pump component 1 is connected to the controller 2 via an air tube 50. The controller 2 is equipped with a strap 3 for wearing on the human body, and a tightening device 4 for tightening the strap 3. This allows users to wear the breast pump around their neck, collar, or arm, enabling them to perform other activities while pumping milk, greatly improving convenience and flexibility. The automatic tightening device automatically adjusts the tightness of the strap according to individual body characteristics, ensuring the device is both comfortable and secure to wear. Simultaneously, the position of the controller can be quickly and easily adjusted without frequent manual adjustments of the strap, enhancing the user experience. The entire device has a compact design, is easy to carry, and is suitable for use when out and about, freeing breastfeeding from limitations of specific locations and increasing user freedom.
Claims
1. A wearable breast pump, characterized in that: It includes a breast pump (1) that can fit on the breast and a controller (2) that can control the breast pump (1) to pump milk. The breast pump (1) is connected to the controller (2) through an air tube (50). The controller (2) is provided with a strap (3) for wearing the controller (2) on the human body. The controller (2) is also provided with a tightening device (4) for tightening the strap (3).
2. The wearable breast pump according to claim 1, characterized in that: The tightening device (4) includes an elastic element (41) disposed on the controller (2) and capable of elastic deformation. The elastic element (41) is connected to the controller (2). The tail end of the belt (3) is connected to the elastic element (41), and the head end of the belt (3) is connected to the outer wall of the controller (2).
3. A wearable breast pump according to claim 2, characterized in that: The controller (2) is provided with a first receiving cavity (210), and a connecting block (220) is provided in the first receiving cavity (210). The outer wall of the controller (2) is provided with an extension hole (230) communicating with the first receiving cavity (210). The elastic element (41) includes a coil spring. The tail end of the coil spring is connected to the connecting block (220), and the head end of the coil spring is connected to the belt (3). The head end of the belt (3) extends out from the extension hole (230) and is connected to the outer wall of the controller (2).
4. A wearable breast pump according to any one of claims 1-3, characterized in that: The milk suction device (1) has a milk suction cavity (5) on one side. The milk suction device (1) also has an air pressure cavity (6) and a milk storage cavity (7). A flexible diaphragm (10) is provided between the milk suction cavity (5) and the air pressure cavity (6) to separate the two. A guide (20) is provided between the milk suction cavity (5) and the milk storage cavity (7) to drain the milk in the milk suction cavity (5) into the milk storage cavity (7). The upper part of the milk suction device (1) is provided with a milk discharge port (30) that communicates with the milk storage cavity (7).
5. A wearable breast pump according to claim 4, characterized in that: The milk suction device (1) includes a bra (11) and an outer cover (12) connected to the outside of the bra (11). The air pressure chamber (6) and the milk storage chamber (7) are both located between the outer cover (12) and the bra (11). The milk suction cavity (5) is located at the front end of the bra (11).
6. A wearable breast pump according to claim 5, characterized in that: The outer cover (12) has an opening (121) at its front end and a first annular tube (122) on the rear inner wall of the outer cover (12). The bra (11) includes a second annular tube (112) that can be inserted into the first annular tube (122) to connect the bra (11) to the outer cover (12). The front end of the second annular tube (112) has a blocking part (113) for sealing the opening (121). The front end of the outer cover (12) also has an outwardly extending outer edge (123). The blocking part (113) has a snap-fit groove (114) for inserting the outer edge (123).
7. A wearable breast pump according to claim 6, characterized in that: The flexible diaphragm (10) is disposed on the inner wall of the second annular tube (112), the milk suction cavity (5) is disposed on the front side of the flexible diaphragm (10), and the air pressure cavity (6) is disposed on the rear side of the flexible diaphragm (10).
8. A wearable breast pump according to claim 5, characterized in that: The bra (11) has a frame (1312) inside to improve its strength.
9. A wearable breast pump according to claim 5, characterized in that: The outer cover (12) is detachably connected to a cover (8) that can open the air pressure chamber (6), and the cover (8) is provided with an air pipe connector (81) that communicates with the air pressure chamber (6).
10. A wearable breast pump according to claim 9, characterized in that: The controller (2) includes a housing (21), and a second receiving cavity (211) is provided inside the housing (211). The second receiving cavity (211) is provided with an air pump (22), a solenoid valve (23), a control circuit board (24) and a battery (25). The controller (2) is also provided with a control switch (26) for controlling the operation of the air pump (22) and the solenoid valve (23). The housing (21) is also provided with a charging port (27) for charging the battery (25).