Breast pump
By designing a breast pump with detachable connections and a cushioning structure, the problem of poor sealing in hospital breast pumps has been solved, improving pumping efficiency and lifespan, making it suitable for the frequent use needs of breast clinics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-26
- Publication Date
- 2026-03-31
AI Technical Summary
Breast pumps used in hospital breast departments are prone to sealing problems, which reduces milk expression efficiency. Furthermore, existing breast pumps require manual compression of the air pump to maintain a seal when used frequently for extended periods.
A breast pump has been designed, comprising components such as a three-way tube, a collection bottle, an air pump, a one-way valve, a duckbill drainage tube, an adsorption pad, a suction compression cup, a ferrule, a sliding piston, and an air bladder. The pump achieves sealing and stability through detachable and threaded connections, and uses a sliding piston and air bladder buffer structure to reduce air pressure impact, ensuring the air pump's sealing and service life.
It improves the sealing effect and lifespan of the breast pump, simplifies the operation process, and makes it easy to clean and sterilize, making it suitable for the frequent use needs of breast clinics.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to the field of medical breast pump technology, specifically to a breast pump. Background Technology
[0002] The breast pumps used in hospital breast departments are different from those used at home. They are used for longer periods and more frequently. When using commonly available breast pumps, sealing problems are more likely to occur. Home breast pumps use a fixed air pump that is mounted by contact. With prolonged and frequent use, the sealing effect is reduced, leading to the need to manually tighten the air pump frequently. This, in turn, affects the efficiency of milk expression.
[0003] In view of this, we propose a breast pump specifically designed for use in the field of breast surgery, with a good sealing effect to effectively ensure milk expression efficiency. Summary of the Invention
[0004] In view of the deficiencies in the prior art, the present invention provides a breast pump to ensure milk expression efficiency.
[0005] The present invention provides a breast pump, comprising: an installation assembly including a three-way tube and a collection bottle; the three-way tube is installed on the collection bottle; the three-way tube has an installation section, a milk suction section, and a pressure section; the three-way tube is detachably installed at the mouth of the collection bottle through the installation section; a pressure unit detachably installed on the installation assembly; the pressure unit includes an air pump detachably installed on the pressure section; and a fixing cover detachably installed at the milk suction section and used to fix it to the breast.
[0006] Furthermore, the mounting assembly also includes a one-way valve and a duckbill drainage tube. One end of the one-way valve is detachably installed within the mounting tube section, and the duckbill drainage tube is detachably installed at the other end of the one-way valve, facing towards the collection bottle. In practical application, this design effectively ensures that during milk expression, the milk will not flow back after passing through the one-way valve, and after passing through the duckbill drainage tube, it easily flows into the collection bottle, effectively preventing milk splashing and facilitating observation and collection.
[0007] Furthermore, it also includes an absorbent pad, which is detachably mounted at the bottom of the collection bottle; wherein the absorbent pad has a suction cup and a placement cavity, and the suction cup is located at the bottom of the absorbent pad; the placement cavity is located on the absorbent pad and is used to place the collection bottle. In practical applications, the purpose of this design is to facilitate the fixing of the collection bottle, thereby effectively and conveniently collecting milk and preventing the collection bottle from tipping over.
[0008] Furthermore, the pressure section also includes a suction compression cup and a retaining ring; the suction compression cup is detachably mounted on the pressure tube section, and the retaining ring is detachably mounted on the suction compression point, wherein the retaining ring abuts and fixes against the suction compression cup. In practical applications, the purpose of this design is to achieve a more effective fixed connection, facilitating improved sealing. The retaining ring, made of metal, effectively fixes the suction compression cup, which is made of silicone and bowl-shaped. This allows for easy axial contraction, thus facilitating pumping and milk expression.
[0009] Furthermore, the mounting assembly also includes a fixed external threaded ring; the fixed external threaded ring is fixedly mounted on the air pump; the retaining ring also has a threaded section, and the air pump is fixedly mounted on the pressure pipe section through the threaded connection between the fixed external threaded ring and the threaded section. In practical applications, the purpose of this design is to achieve a better sealing effect. In actual work, a threaded connection is used to achieve a better sealing effect and further ensure the stable and fixed effect of the connection.
[0010] Furthermore, the pressure unit also includes a sliding piston, and the retaining ring has a sliding section, which is close to the suction compression cup; the sliding piston is slidably mounted on the sliding section. In practical applications, the purpose of this design is to improve the pressure efficiency of the suction compression cup. The traditional design of the air pump being directly connected to the suction compression cup results in a large overall compression space and a small space acting on the suction compression cup area, thus wasting the efficiency of the air pump. Therefore, the combination design of the sliding piston and the retaining ring with a sliding section achieves the pumping effect of a piston pump, resulting in greater deformation of the suction compression cup and facilitating the achievement of higher pressure. At the same time, this design effectively changes the pressure generated by the suction compression cup from the traditional impact on the sealing contact of the air pump to the impact on the sliding piston. In this way, the effective impact of air pressure on the seal is avoided, further improving the overall service life. Thus, it can be effectively applied in the daily use of breast clinics.
[0011] Furthermore, the pressure unit also includes an air bladder and a spring; one end of the spring is fixedly mounted on the surface of the sliding piston, close to the air pump; the air bladder covers the spring, and one end of the air bladder is connected to the sliding piston, while the other end of the air bladder is connected to and communicates with the air pump. In practical applications, to further avoid the impact of pressure on the air pump seal, the design utilizes the deformation of the air bladder to greatly offset the pressure generated when the sliding piston slides towards the air pump, while the spring further dissipates energy. In actual operation, the air bladder in this design uses a silicone design, which can effectively achieve deformation. One end of the spring is fixed, while the other end can abut against the air pump. This allows the airflow generated by the air pump to be completely filled into the air bladder when it inflates, thus achieving air bladder expansion. The spring expands to facilitate the pushing of the sliding piston by the air bladder, thereby facilitating the work done by the sliding piston on the suction compression cup. When the air bladder contracts, the spring restricts its deformation, making the stroke of the sliding piston controllable and preventing pressure overload. Simultaneously, it effectively reduces energy consumption during piston rebound, minimizing impact on the air pump seal. Furthermore, the spring's contact with the air pump prevents impact on the pump during piston sliding, providing a buffering effect and effectively protecting the core component of the device, the air pump.
[0012] Furthermore, the fixing cover also includes a breast pump pad, which is detachably installed on the fixing cover and abuts against the inner wall of the fixing cover, and communicates with the installation tube section. In practical application, the purpose of this design is to facilitate fixing and use. In actual operation, the breast pump pad is made of silicone material, which allows it to effectively and easily conform to the surface of the breast.
[0013] As can be seen from the above technical solution, the beneficial effects of the breast pump provided by the present invention are as follows: In practical applications, the detachable design of the mounting assembly, pressure unit, and fixing cover facilitates use and allows for easy sterilization after use, thus enabling effective reuse. Furthermore, the overall design is reasonable and the operation is simple. Milk is drawn by the air pressure generated by the air pump in the pressure unit. This mature design greatly simplifies the product development process; therefore, this device is suitable for industry promotion. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0015] Figure 1 A front view of a breast pump is provided for an embodiment of the present invention; Figure 2 This is a front view schematic diagram of a breast pump provided in an embodiment of the present invention; Figure 3 for Figure 2 The enlarged structural diagram at point A and the working diagram after the airbag is inflated are shown. Figure 4 This is a schematic diagram showing the operation of the airbag after it has deflated. Figure label: Assembly assembly 1, T-connector 11, Installation section 111, Milk suction section 112, Pressure section 113, Collection bottle 12, One-way valve 13, Duckbill drainage tube 14, Fixed external thread ring 15, Pressure section 2, Air pump 21, Suction compression cup 22, Compression ring 23, Threaded section 231, Sliding section 232, Sliding piston 24, Airbag 25, Spring 26, Fixing cover 3, Milk suction pad 31, Adsorption pad 4, Suction cup 41, Placement chamber 42. Detailed Implementation
[0016] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0017] The basic implementation examples are as follows: Figures 1 to 4 As shown: like Figure 1 - Figure 4 As shown in the figure, the breast pump provided in this embodiment can ensure milk expression efficiency.
[0018] The present invention provides a breast pump, comprising: an installation assembly 1, the installation assembly 1 including a three-way tube 11 and a collection bottle 12; the three-way tube 11 is installed on the collection bottle 12; the three-way tube 11 has an installation section 111, a milk suction section 112 and a pressure section 113; the three-way tube 11 is detachably installed at the mouth of the collection bottle 12 through the installation section 111; a pressure unit 2, the pressure unit 2 being detachably installed on the installation assembly 1; the pressure unit 2 including an air pump 21, the air pump 21 being detachably installed on the pressure section 113; and a fixing cover 3, the fixing cover 3 being detachably installed at the milk suction section 112 and used to fix it at the breast. In practical applications, the detachable design of the installation assembly 1 with the pressure unit 2 and the fixing cover 3 facilitates use and allows for easy sterilization after use, thus enabling effective reuse. Furthermore, the overall design is reasonable and the operation is simple. Milk is drawn by the air pressure generated by the air pump 21 in the pressure unit 2. This mature design greatly simplifies the product development process. Therefore, this device is suitable for industry promotion.
[0019] In this embodiment, to facilitate milk flow, the mounting assembly 1 further includes a one-way valve 13 and a duckbill drainage tube 14. One end of the one-way valve 13 is detachably installed inside the mounting tube section 111, and the duckbill drainage tube 14 is detachably installed at the other end of the one-way valve 13, facing towards the collection bottle 12. In practical application, this design effectively ensures that during milk expression, the milk will not flow back after passing through the one-way valve 13, and after passing through the duckbill drainage tube 14, it flows conveniently into the collection bottle 12, effectively preventing milk splashing and facilitating observation and collection.
[0020] To facilitate milk collection, this embodiment also includes an absorbent pad 4, which is detachably mounted at the bottom of the collection bottle 12. The absorbent pad 4 has a suction cup 41 and a placement cavity 42, with the suction cup 41 located at the bottom and the placement cavity 42 located on the absorbent pad 4 for holding the collection bottle 12. In practical applications, the purpose of this design is to easily secure the collection bottle 12, thereby effectively facilitating milk collection and preventing the collection bottle 12 from tipping over.
[0021] To effectively and conveniently seal the air pump 21, in this embodiment, the pressure section 2 further includes a suction compression cup 22 and a retaining ring 23. The suction compression cup 22 is detachably mounted on the pressure pipe section 113, and the retaining ring 23 is detachably mounted on the suction compression cup 22, wherein the retaining ring 23 abuts and is fixed to the suction compression cup 22. In practical applications, the purpose of this design is to achieve a more effective fixed connection, facilitating improved sealing. The retaining ring 23 abuts against the suction cup 22, effectively fixing it. The retaining ring 23 is made of metal, while the suction compression cup 22 is made of silicone and is bowl-shaped. This facilitates axial contraction, thereby facilitating pumping and milk suction.
[0022] To further enhance the sealing effect through the connection, in this embodiment, the mounting assembly 1 also includes a fixed external threaded ring 15; the fixed external threaded ring 15 is fixedly mounted on the air pump 21; the retaining ring 23 also has a threaded section 231, and the air pump 21 is fixedly mounted on the pressure pipe section 113 through the threaded connection between the fixed external threaded ring 15 and the threaded section 231. In practical applications, the purpose of this design is to achieve a better sealing effect. In actual work, a threaded connection is used to achieve a better sealing effect and further ensure the stable and fixed effect of the connection.
[0023] Meanwhile, in order to reduce the impact of air pressure on the air pump 21 during the sealing process, in this embodiment, the pressure part 2 further includes a sliding piston 24, and the retaining ring 23 also has a sliding section 232, which is close to the suction compression cup 22; the sliding piston 24 is slidably mounted on the sliding section 232. In practical applications, the purpose of this design is to improve the pressure efficiency of the suction compression cup 22. The traditional design, where the air pump 21 is directly connected to the suction compression cup 22, results in a large overall compression space and a small area within the suction compression cup 22, thus wasting the efficiency of the air pump 21. Therefore, the combined design of the sliding piston 24 and the retaining ring 23 with a sliding section 232 achieves the pumping effect of a piston pump, allowing for greater deformation of the suction compression cup 22 and facilitating the achievement of higher pressure. Simultaneously, this design effectively redirects the pressure generated by the suction compression cup 22 from the traditional impact on the sealing contact of the air pump 21 to the impact on the sliding piston 24. This avoids the effective impact of air pressure on the seal, further improving the overall service life. Consequently, it can be effectively applied in daily use in breast surgery.
[0024] In this embodiment, the pressure unit 2 further includes an air bladder 25 and a spring 26; one end of the spring 26 is fixedly mounted on the surface of the sliding piston 24 and is close to the air pump 21; the air bladder 25 covers the spring 26, and one end of the air bladder 25 is connected to the sliding piston 24, and the other end of the air bladder 25 is connected to the air pump 21 and communicates with it. In practical applications, to further prevent pressure from impacting the seal of the air pump 21, the design incorporates the deformation of the air bladder 25. This significantly reduces the pressure generated when the sliding piston 24 slides towards the air pump 21, further amplified by the spring 26. In actual operation, the air bladder 25 is made of silicone, effectively allowing for deformation. One end of the spring 26 is fixed, while the other end rests against the air pump 21. This ensures that when the air pump 21 inflates the air bladder 25, the airflow generated by the air pump 21 is completely incorporated into the air bladder 25, facilitating its expansion. The air bladder 25 pushes the sliding piston 24, thus facilitating the work done by the sliding piston 24 on the suction compression cup 22. When the air bladder 25 contracts, the spring 26 restricts the air bladder 25, making its deformation controllable. This allows for controllable stroke of the sliding piston 24, preventing air pressure overload. Simultaneously, it effectively reduces energy consumption during the rebound of the sliding piston 24, minimizing impact on the air pump 21 seal. Furthermore, the contact between the spring 26 and the air pump 21 prevents impact on the air pump 21 during sliding of the sliding piston 24, providing a buffering effect. This effectively protects the core component of the device, the air pump 21.
[0025] In this embodiment, the fixing cover 3 further includes a breast pump pad 31, which is detachably mounted on the fixing cover 3 and abuts against the inner wall of the fixing cover 3, and communicates with the mounting tube section 111. In practical applications, the purpose of this design is to facilitate fixing and use. Furthermore, in actual operation, the breast pump pad 31 is made of silicone material, which allows it to effectively and easily conform to the surface of the breast.
[0026] In summary, this breast pump is not only reasonably designed and easy to operate, but also features a modular, detachable design for easy cleaning and high-temperature sterilization. Furthermore, its piston-type sealed milk pumping design effectively solves the sealing problem of the air pump 21. Therefore, this device is suitable for industry promotion.
[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A breast pump, characterized in that The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
2. A breast pump according to claim 1, wherein, The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
3. A breast pump according to claim 1, wherein, The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
4. A breast pump according to claim 1, wherein, The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
5. A breast pump according to claim 4, wherein The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
6. A breast pump according to claim 4, wherein, The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
7. A breast pump according to claim 6, wherein The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part.
8. A breast pump according to claim 1, wherein, The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. The utility model relates to a breast pump, and more particularly to a breast pump with a pressure part. 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