Obstetric breast pump
By introducing an airbag and air pump into the breast pump, milk expression and massage can be performed simultaneously, solving the problem that existing breast pumps cannot provide a massage function and improving user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIV
- Filing Date
- 2025-01-15
- Publication Date
- 2026-05-29
AI Technical Summary
Current breast pumps cannot provide a massage function at the same time to relieve user discomfort.
A breast pump for obstetrics has been designed. By setting an airbag and an air pump in the main body of the breast pump, the expansion and contraction of the airbag massages the breast. Combined with negative pressure milk suction, milk suction and massage can be carried out simultaneously.
It effectively alleviates the user's discomfort during the breast pumping process and improves the user experience.
Smart Images

Figure CN224292289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of breast pump technology, and in particular to an obstetric breast pump. Background Technology
[0002] A breast pump disclosed in Chinese Publication No. CN110538352B includes a main unit and a bottle assembly. The main unit and bottle assembly are equipped with a pneumatic milk suction assembly and a pneumatic massage assembly. The pneumatic milk suction assembly includes a milk suction air connector mounted on the bottle assembly, a milk suction pump and a milk suction solenoid valve both located within the main unit, and the milk suction air connector is connected to the milk suction pump and the milk suction solenoid valve respectively via milk suction tubing. The pneumatic massage assembly includes a massage air connector mounted on the bottle assembly, a massage pump and a massage solenoid valve both located within the main unit, and the massage air connector is connected to the massage pump and the massage solenoid valve respectively via massage tubing. A control board is located within the main unit, and the control board is electrically connected to the milk suction pump, the milk suction solenoid valve, the massage pump, and the massage solenoid valve respectively via wiring. This invention features a pneumatic massage assembly, enabling the breast pump to perform a standalone massage function.
[0003] The aforementioned technologies and existing breast pumps rely solely on suction to extract milk, resulting in a limited stimulation of milk production. This can easily cause discomfort for mothers when expressing milk. While the positive effects of breast massage in promoting milk production and relieving breast engorgement are becoming increasingly recognized, the aforementioned technologies and existing breast pumps cannot simultaneously provide massage to alleviate discomfort during use. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing breast pumps that cannot simultaneously provide massage to relieve discomfort during use, and to propose a maternity breast pump.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a breast pump for obstetric use, comprising a bottle, a breast pump body on the top of the bottle, a breast pump shield on one side of the breast pump body, an air suction cap on the top of the breast pump body, claws arranged in a circumferential array on the surface of the air suction cap, a first silicone pad at the bottom of the air suction cap, a main unit on one side of the bottle, air tubes on both sides of the air suction cap, a mounting groove on the surface of the breast pump shield, an air bladder inside the mounting groove, a cover plate on the side of the air bladder away from the breast pump shield, a one-way valve inside the breast pump body, a second silicone pad inside the breast pump shield, and a silicone sheet on one side of the one-way valve.
[0006] Preferably, the breast pump body is mounted on the top surface of the bottle, and the breast pump body is threadedly connected to the bottle.
[0007] Preferably, the one-way valve is inserted into the breast pump body, and the silicone sheet is snapped into the one-way valve.
[0008] Preferably, the breast shield is threadedly connected to the breast pump body, the airbag is installed in the mounting groove of the breast shield, and one end of the airbag passes through the breast shield. The cover is installed on the top of the airbag and is bonded to the breast shield.
[0009] Preferably, both air tubes are connected to the inhalation cap, the air tube on the side of the inhalation cap closer to the main unit is connected to the air pump inside the main unit, and the air tube on the side of the inhalation cap closer to the airbag is connected to the airbag.
[0010] Preferably, the first silicone pad is embedded in the top surface of the breast pump body, and the second silicone pad is fitted inside the breast shield.
[0011] Preferably, the suction cover is installed on the top surface of the breast pump body, and the suction cover is installed on the top surface of the breast pump body by means of a clamp, and the suction cover and the clamp are integrally formed.
[0012] Beneficial effects
[0013] In this invention, the air pump is activated by the main unit, drawing air out of the breast pump body through the air tube, creating a negative pressure inside the breast pump body. This negative pressure draws milk from the breast into the breast pump body. After the milk is drawn out, the air pump inside the main unit returns the air to the breast pump body, restoring the internal pressure of the breast shield to normal. Because the air bladder on the breast shield is connected to the suction cap through the air tube, the air pump simultaneously creates a vacuum in the breast pump body and draws air out of the air bladder, causing it to deflate. When the air pump returns the air, the air bladder is replenished and returns to its full state. The expansion and contraction of the air bladder massages the breast area, thus relieving discomfort during breast pumping. This invention overcomes the shortcoming of traditional breast pumps that cannot provide massage to relieve discomfort during use. Attached Figure Description
[0014] Figure 1 This is an isometric drawing of the present invention;
[0015] Figure 2 This is a partial perspective view of the present invention;
[0016] Figure 3 This is the right view of the present invention;
[0017] Figure 4 For the present utility model Figure 3 Sectional view at point AA;
[0018] Figure 5 This is a part drawing of the present utility model.
[0019] Legend:
[0020] 1. Baby bottle; 2. Breast pump body; 3. Suction cover; 4. Claw; 5. Main unit; 6. Air tube; 7. First silicone pad; 8. Breast pump cover; 9. Second silicone pad; 10. Mounting slot; 11. Airbag; 12. Cover plate; 13. One-way valve; 14. Silicone sheet; 15. Air pump. Detailed Implementation
[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:
[0024] Reference Figure 1-5 A breast pump for obstetric use includes a baby bottle 1, a breast pump body 2 on the top of the baby bottle 1, a breast pump shield 8 on one side of the breast pump body 2, an air suction cap 3 on the top of the breast pump body 2, claws 4 arranged in a circumferential array on the surface of the air suction cap 3, a first silicone pad 7 at the bottom of the air suction cap 3, a main unit 5 on one side of the baby bottle 1, air tubes 6 on both sides of the air suction cap 3, a mounting groove 10 on the surface of the breast pump shield 8, an air bladder 11 inside the mounting groove 10, a cover plate 12 on the side of the air bladder 11 away from the breast pump shield 8, a one-way valve 13 inside the breast pump body 2, a second silicone pad 9 inside the breast pump shield 8, a silicone sheet 14 on one side of the one-way valve 13, the breast pump body 2 being mounted on the top surface of the baby bottle 1 and threadedly connected to the baby bottle 1, and the one-way valve 13 being threadedly connected to the breast pump body 1. The breast pump body 2 is inserted into the breast pump body 2. The silicone sheet 14 is snapped into the one-way valve 13. The breast shield 8 is threaded into the breast pump body 2. The air bag 11 is installed in the mounting groove 10 of the breast shield 8, and one end of the air bag 11 passes through the breast shield 8. The cover plate 12 is installed on the top of the air bag 11 and is bonded to the breast shield 8. Both air tubes 6 are inserted into the suction cover 3. The air tube 6 on the side of the suction cover 3 near the main unit 5 is inserted into the air pump 15 inside the main unit 5, and the air tube 6 on the side of the suction cover 3 near the air bag 11 is inserted into the air bag 11. The first silicone pad 7 is embedded in the top surface of the breast pump body 2, and the second silicone pad 9 is fitted inside the breast shield 8. The suction cover 3 is installed on the top surface of the breast pump body 2, and the suction cover 3 is installed on the top surface of the breast pump body 2 through the claw 4. The suction cover 3 and the claw 4 are integrally formed.
[0025] The bottle 1 is mainly used to collect expressed breast milk. The breast pump body 2 is one of the core components of the entire breast pump, and it has a one-way valve 13 inside. It is threadedly connected to the bottle 1, forming a relatively sealed space, providing a channel and space for the formation of negative pressure and the transfer of breast milk. The suction cap 3 has a circumferential array of claws 4 on its surface, which are used to install it together with the breast pump body 2, and serve to seal the space between the suction cap 3 and the breast pump body 2. The air tubes 6 on both sides are connected to the main unit 5, the air pump 15, and the air bag 11, respectively, and are the channels for gas transmission. The four claws 4 are integrally formed with the suction cap 3, and the suction cap 3 is fixed to the breast pump body 2 by a snap-fit structure, ensuring a stable connection between the suction cap 3 and the breast pump body 2, and preventing the suction cap 3 from falling off during use due to negative pressure or other factors, which would affect the milk expression effect and sealing. The installation method is as follows: align the claws 4 of the suction cap 3 with the slots on the top surface of the breast pump body 2, and press the claws 4 into the slots. After installation, rotate the suction cap 3 to lock the claws 4 into the breast pump body 2. The air pump 15 inside the main unit 5 is the power source for the entire breast pump. Controlled by a circuit, the air pump 15 operates according to a set program, achieving suction and desiccation functions. This creates negative pressure and restores normal pressure within the breast pump body 2, completing the milk pumping process and providing power for the massage of the airbag 11. The first silicone pad 7 is embedded in the top surface of the breast pump body 2. Utilizing the softness and sealing properties of silicone, it creates a seal between the suction cap 3 and the breast pump body 2, preventing air leakage and ensuring the formation and maintenance of negative pressure. Simultaneously, the first silicone pad 7 also prevents milk from being sucked out of the breast pump body 2. The breast shield 8 is designed to conform to the physiological structure of the breast, easily fitting the breast and forming a relatively sealed space, allowing milk to be smoothly sucked out. The second silicone pad 9 is fitted inside the breast shield 8 and comes into direct contact with the breast. The silicone material is soft and skin-friendly, reducing irritation and discomfort to the breast during pumping, while ensuring a tight seal between the breast shield 8 and the breast to prevent air from entering and affecting the pumping effect. The mounting slot 10 on the top surface of the breast shield 8 is used to install the airbag 11. The airbag 11 is connected to the suction cap 3 via an air tube 6. When the air pump 15 creates a vacuum in the breast pump body 2, the air in the airbag 11 is also sucked out, resulting in a deflated state. When the air pump 15 returns air, the airbag 11 is replenished and returns to its full state. This contraction and expansion action massages the breast area, relieving discomfort during pumping. Because the second silicone pad 9 sits between the airbag 11 and the breast, the pumped milk does not contaminate the airbag 11, and the softness of the second silicone pad 9 ensures that it does not affect the massage effect. The cover plate 12 is installed on top of the airbag 11 and is bonded to the breast pump cover 8. It protects the airbag 11 from external damage during use and also fixes the position of the airbag 11 to a certain extent to ensure its normal operation. The one-way valve 13 is inserted into the breast pump body 2 and has a silicone sheet 14 on one side.When there is negative pressure inside the breast pump body 2, the silicone sheet 14 is tightly attached to the through hole of the one-way valve 13 to prevent air from entering and ensure the formation of negative pressure. When the air pressure inside the breast pump body 2 returns to normal, the milk sucked into the breast pump body 2 will pass through the through hole of the one-way valve 13 and break through the silicone sheet 14 to enter the bottle 1 at the bottom of the breast pump body 2, realizing the one-way flow of milk and avoiding milk backflow. Specific Implementation Example 2:
[0027] Reference Figure 1-5 A breast pump for obstetric use, further based on the basic structure in Specific Embodiment 1, has the following overall process: The main unit 5 is started and connected to an external power source. The main unit 5 activates the internal air pump 15, which draws air out of the breast pump body 2 through the air tube 6. Since the suction cap 3, breast pump body 2, and breast shield 8 form a relatively sealed space, the air pressure within this space gradually decreases as air is drawn out, creating a negative pressure environment. Under the influence of external atmospheric pressure, milk from the breast enters the breast pump body 2 through the breast shield 8. At this time, the silicone sheet 14 in the one-way valve 13 is tightly adhered to the through-hole of the one-way valve 13 due to the negative pressure, preventing air from entering and ensuring the continuous existence of negative pressure, allowing milk to be smoothly drawn into the breast pump body 2. When a certain amount of milk accumulates in the breast pump body 2, the air pump 15 inside the main unit 5 returns air to the breast pump body 2, gradually restoring the air pressure inside the breast pump body 2 to normal. At this time, the milk sucked into the breast pump body 2 will pass through the through hole of the one-way valve 13 and break through the silicone sheet 14 to enter the bottle 1 at the bottom of the breast pump body 2, completing one pumping process. While the air pump 15 creates a vacuum in the breast pump body 2, the air in the air bag 11 is also sucked out because it is connected to the air suction cap 3 via the air tube 6, causing the air bag 11 to deflate. When the air pump 15 delivers air back in, the air bag 11 is replenished and returns to its full state. This periodic expansion and contraction of the air bag 11 massages the breast area, relieving discomfort during pumping and achieving simultaneous pumping and massage.
[0028] In summary:
[0029] 1. The system employs a method where the air pump 15 is activated via the main unit 5, causing it to draw air out of the breast pump body 2 through the air tube 6, creating a negative pressure inside the breast pump body 2. This negative pressure draws milk from the breast into the breast pump body 2. After the milk is drawn out, the air pump 15 inside the main unit 5 returns the air to the breast pump body 2, restoring the internal pressure of the breast shield 8 to normal. Since the air bladder 11 on the breast shield 8 is connected to the suction cap 3 through the air tube 6, the air pump 15 simultaneously creates a vacuum in the breast pump body 2 and draws air out of the air bladder 11, causing it to deflate. When the air pump 15 returns the air, the air bladder 11 is replenished and returns to its full state. The expansion and contraction of the air bladder 11 massages the breast area, thus relieving discomfort during breast pumping. This method overcomes the limitation of traditional breast pumps that cannot simultaneously provide massage to relieve discomfort.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A breast pump for obstetric use, comprising a baby bottle (1), characterized in that: The top of the bottle (1) is provided with a breast pump body (2), a breast pump shield (8) is provided on one side of the breast pump body (2), a suction cover (3) is provided on the top of the breast pump body (2), a claw (4) is arranged in a circumferential array on the surface of the suction cover (3), a first silicone pad (7) is provided at the bottom of the suction cover (3), a main unit (5) is provided on one side of the bottle (1), air tubes (6) are provided on both sides of the suction cover (3), a mounting groove (10) is provided on the surface of the breast pump shield (8), an air bladder (11) is provided inside the mounting groove (10), a cover plate (12) is provided on the side of the air bladder (11) away from the breast pump shield (8), a one-way valve (13) is provided inside the breast pump body (2), a second silicone pad (9) is provided inside the breast pump shield (8), a silicone sheet (14) is provided on one side of the one-way valve (13), and an air pump (15) is provided inside the main unit (5).
2. The breast pump for obstetric use according to claim 1, characterized in that: The breast pump body (2) is installed on the top surface of the bottle (1), and the breast pump body (2) is threadedly connected to the bottle (1).
3. The obstetric breast pump according to claim 1, characterized in that: The one-way valve (13) is inserted into the breast pump body (2), and the silicone sheet (14) is snapped into the one-way valve (13).
4. A breast pump for obstetric use according to claim 1, characterized in that: The breast pump cover (8) is threadedly connected to the breast pump body (2). The air bag (11) is installed in the mounting groove (10) of the breast pump cover (8), and one end of the air bag (11) penetrates the breast pump cover (8). The cover plate (12) is installed on the top of the air bag (11), and the cover plate (12) is bonded to the breast pump cover (8).
5. A breast pump for obstetric use according to claim 1, characterized in that: Both of the air tubes (6) are inserted into the inhalation cover (3). The air tube (6) on the side of the inhalation cover (3) closer to the main unit (5) is inserted into the air pump (15) inside the main unit (5), and the air tube (6) on the side of the inhalation cover (3) closer to the airbag (11) is inserted into the airbag (11).
6. A breast pump for obstetric use according to claim 1, characterized in that: The first silicone pad (7) is embedded in the top surface of the breast pump body (2), and the second silicone pad (9) is fitted inside the breast shield (8).
7. A breast pump for obstetric use according to claim 1, characterized in that: The suction cover (3) is installed on the top surface of the breast pump body (2), and the suction cover (3) is installed on the top surface of the breast pump body (2) by means of the claw (4). The suction cover (3) and the claw (4) are integrally formed.