Breast pump and breast pump shield

Abstract

A breast pump and a breast pump shield. The breast pump comprises a breast pump shield. A milk storage space is formed inside the breast pump. A milk pouring opening is formed on the breast pump and the breast pump shield, and the milk pouring opening is used for communicating the milk storage space and the outer environment. A notch is formed at the edge of the milk pouring opening, and the notch is in communication with the milk pouring opening. The size of the notch in the direction where the edge is located is smaller than the size of the milk pouring opening in the direction where the edge is located. By means of the described manner, the smoothness of pouring milk from the breast pump can be improved.

Description

Breast pump and breast shield

[0001] Related applications

[0002] This application claims priority to Chinese Patent Application No. 202421489828.3, filed on June 26, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] Embodiments of the present application relate to the technical field of maternal and child products, in particular to a breast pump and a breast shield. BACKGROUND

[0004] In the practical application of the breast pump, especially in the process of pouring out the breast milk stored in the inside, the problem of poor milk pouring caused by the combined action of pressure difference and liquid surface tension is often encountered. Specifically, when the breast milk tries to flow out from the milk storage space through the milk pouring port, the surface tension will cause the liquid to form a continuous film, which is particularly evident at the beginning and end of milk pouring, resulting in blocked milk flow, not only affecting the smoothness of milk pouring, but also causing waste of breast milk and unhygienic conditions during the milk pouring process. In addition, if the milk pouring port is designed without considering fluid dynamics, the imbalance of pressure difference will also exacerbate the unsmoothness of milk pouring, making the milk pouring process time-consuming and laborious.

[0005] Utility model content

[0006] In view of the deficiencies of the prior art, the present application provides a breast pump and a breast shield, which can solve the technical problem of unsmooth milk pouring of the breast pump.

[0007] To solve the above technical problems, one technical solution adopted by the present application is to provide a breast pump, wherein a milk storage space is formed inside the breast pump, a milk pouring port is formed on the breast pump, the milk pouring port is used to communicate the milk storage space and the outside, an edge of the milk pouring port is formed with a notch, the notch is communicated with the milk pouring port, and the size of the notch in the direction of the edge is smaller than the size of the milk pouring port in the direction of the edge.

[0008] Among them, the transverse size of the milk pouring port is greater than the transverse size of the notch.

[0009] Among them, the longitudinal size of the milk pouring port is smaller than the longitudinal size of the notch.

[0010] Among them, the edge of the milk pouring port includes a straight line type edge, and the edge of the notch includes a curved line type edge.

[0011] Among them, the shape of the milk pouring port is a strip shape, and the notch is located at the long edge of the milk pouring port.

[0012] The notch is located on the lower side of the milk backflow opening.

[0013] The milk backflow opening and the notch are located on the breast shield.

[0014] The breast shield is at least partially made of hard material, and the milk backflow opening and the notch are formed on the portion made of the hard material.

[0015] The notch is formed at the middle position of the lower edge of the milk backflow opening.

[0016] To solve the above technical problems, another technical solution adopted by the present application is to provide a breast shield, a milk backflow opening is formed on the breast shield, the milk backflow opening is used to communicate a milk storage space of a breast pump with the outside world, an edge of the milk backflow opening is formed with a notch, the notch is communicated with the milk backflow opening, and a size of the notch in a direction in which the edge is located is smaller than a size of the milk backflow opening in the direction in which the edge is located.

[0017] The breast pump is internally formed with the milk storage space, the milk backflow opening is formed on the breast pump, the milk backflow opening is used to communicate the milk storage space with the outside world, an edge of the milk backflow opening is formed with the notch, the notch is communicated with the milk backflow opening, and a size of the notch in a direction in which the edge is located is smaller than a size of the milk backflow opening in the direction in which the edge is located. The notch changes the path of liquid flow, helps to break the tension film on the surface of the milk, reduces the resistance of liquid flow, thereby improving the smoothness of milk backflow, and the notch can also play a role of returning the air in the outside world to the inside of the milk storage space, so that the pressure difference between the inside and the outside of the milk storage space is balanced, and the milk can flow out smoothly under the action of gravity. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0019] Fig. 1 is a structural schematic view of a breast pump according to an embodiment of the present application;

[0020] Fig. 2 is a shape schematic view of a milk backflow opening and a notch according to an embodiment of the present application;

[0021] Fig. 3 is another shape schematic view of a milk backflow opening and a notch according to an embodiment of the present application;

[0022] Fig. 4 is a schematic view of a sectional structure of a breast pump according to an embodiment of the present application.

[0023] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0024] In the present application, the terms "provided with", "having", "connected" should be interpreted in a broad sense. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected via an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] Also, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figs. 1-4, Fig. 1 is a schematic view of the structure of a breast pump according to an embodiment of the present application. Fig. 2 is a schematic view of the shape of the milk outlet and the notch according to an embodiment of the present application. Fig. 3 is another schematic view of the shape of the milk outlet and the notch according to an embodiment of the present application. Fig. 4 is a schematic view of a sectional structure of a breast pump according to an embodiment of the present application.

[0029] In this embodiment, the breast pump is internally formed with a milk storage space 101, and a milk pouring port 102 is formed on the breast pump, which is used to communicate the milk storage space 101 with the outside world. The edge 80 of the milk pouring port 102 is formed with a gap 103, which is in communication with the milk pouring port 102. The size of the gap 103 in the direction of the edge 80 is smaller than the size of the milk pouring port 102 in the direction of the edge 80.

[0030] Milk storage space 101: The breast pump is internally provided with a special milk storage space 101, which is designed to facilitate the collection and temporary storage of breast milk, until the next step of processing (such as refrigeration or direct feeding of the baby). Such design allows the mother to directly store the milk after pumping, without the need for additional transfer, reducing the operation steps and also reducing the risk of contamination.

[0031] Milk pouring port 102: The milk pouring port 102 equipped on the breast pump is a key design, which serves as a channel for the milk storage space 101 to communicate with the outside world, facilitating the user to pour the stored breast milk into a feeding bottle or other container when needed. This design simplifies the process of transferring breast milk and improves the flexibility of use.

[0032] Gap 103 design: The edge 80 of the milk pouring port 102 is specially designed with a gap 103, which is in communication with the milk pouring port 102. This detail design may be to facilitate the control of flow rate during pouring, to prevent the splashing or waste caused by too fast flow rate during pouring. At the same time, this design may also consider the convenience of cleaning, to facilitate the complete removal of residual milk during cleaning, and to maintain the hygiene of the appliance. The addition of the gap 103 changes the path of liquid flow, helps to break the surface tension film of the breast milk, reduces the resistance of liquid flow, and thus improves the smoothness of pouring. The gap 103 also functions to return the outside air to the inside of the milk storage space 101, so that the pressure difference between the inside and outside of the milk storage space 101 is balanced, and the milk can flow out smoothly under the action of gravity.

[0033] Size difference: The size of the gap 103 in the direction of the edge is smaller than the size of the milk pouring port 102 in the same direction. This design is to ensure smooth pouring while also reducing the possibility of external contaminants (such as dust, bacteria) entering the milk storage space 101 through the limiting effect of the gap 103 when not in use, further ensuring the safety and hygiene of the breast milk.

[0034] In one embodiment, the transverse size of the milk pouring port 102 is greater than the transverse size of the gap 103.

[0035] In one embodiment, the longitudinal size of the milk pouring port 102 is smaller than the longitudinal size of the gap 103.

[0036] The transverse dimension of the milk pouring opening 102 is greater than that of the gap 103, which helps to control the flow rate; while the longitudinal dimension of the milk pouring opening is smaller than that of the gap, which helps to maintain a certain damping effect while ensuring smooth milk pouring, so as to avoid the uncontrollable milk pouring caused by too fast milk pouring, resulting in milk splashing and contamination.

[0037] Optionally, the edge of the milk pouring opening 102 comprises a straight edge, and the edge of the gap 103 comprises a curved edge. The milk pouring opening 102 adopts a straight edge, while the edge of the gap 103 is curved, and the curved edge of the edge of the gap 103 is more likely to break the liquid surface tension film during milk pouring, making the milk pouring more smooth.

[0038] As shown in FIG. 3, in another embodiment, the gap 303 of the edge of the milk pouring opening 302 can also comprise a straight edge.

[0039] In some embodiments, the shape of the edge of the gap can also comprise a straight edge and a curved edge at the same time, which is not limited in the embodiments of the present application.

[0040] Continuing to refer to FIG. 2, optionally, the shape of the milk pouring opening 102 is long strip-shaped, and the gap 103 is located at the long edge of the milk pouring opening 102. The long strip-shaped milk pouring opening 102 is less likely to have dust entering the milk storage space 101 and contaminating the milk, but the long strip-shaped milk pouring opening 102 is more likely to form a liquid surface tension film at the opening, making it difficult for the milk to pour out. However, the problem can be better solved by setting the gap 103 at the long edge of the long strip-shaped milk pouring opening 102, and the backflow of air through the gap 103 forms a pressure difference and breaks the surface tension film.

[0041] In an embodiment, the gap 103 is located at the lower side of the milk pouring opening 102. By setting the gap 103 at the lower side of the milk pouring opening 102, more milk is concentrated at the lower side under the action of gravity, thereby breaking the surface tension film at the gap 103, so that the milk can flow out smoothly.

[0042] In an embodiment, the breast pump comprises a milk bowl 10 and a breast shield 20, the milk bowl 10 and the breast shield 20 form the milk storage space 101, and the milk pouring opening 102 and the gap 103 are located on the breast shield 20. In this embodiment, the breast pump adopts the milk bowl 10 as the milk storage container, and in other embodiments, it is not limited to this structure, for example, a milk bottle must also have a milk pouring opening, and a gap is formed at the milk pouring opening, so that the milk can flow out smoothly.

[0043] In an embodiment, the breast shield 20 is at least partially made of hard material, and the milk pouring opening 102 and the gap 103 are formed on the portion made of hard material.

[0044] In some embodiments, the notch 103 is formed at a middle position of the lower edge of the milk backflow port 102.

[0045] The embodiments of the present application also provide a breast shield 20, which is provided with a milk backflow port 102 for connecting a storage space 102 of a breast pump with the outside world. An edge 80 of the milk backflow port 102 is provided with a notch 103, which is connected with the milk backflow port 102 and has a size in the direction of the edge 80 smaller than that of the milk backflow port 102 in the direction of the edge 80.

[0046] In an embodiment, the breast pump comprises a milk storage container 10, a breast shield 20 and a main machine 30. The breast shield 20 is detachably connected with the milk storage container 10, and a breast passage 201 is formed in the breast shield 20.

[0047] The main machine 30 is detachably connected with the milk storage container 10, and is used to form a negative pressure for breast pumping in the breast passage 201, so as to drive the milk in the breast passage 201 to flow into the storage space 101.

[0048] In an embodiment, the breast shield 20 is at least partially made of soft material. Specifically, the breast shield 20 comprises a soft rubber layer 21 made of soft rubber and a hard rubber layer 22 made of hard rubber, and the soft rubber layer 21 is located at a side close to the human breast. In other embodiments, the breast shield 20 can be made of soft rubber or hard rubber entirely, which is not limited in the embodiments of the present application. In some embodiments, the nipple passage portion 23 of the breast shield 20 is made of hard rubber entirely, and the trumpet-shaped breast flange portion 24 is made of soft rubber and hard rubber in a double-layer structure.

[0049] In an embodiment, the main machine 30 comprises a shell 31, a negative pressure pump 32, an electromagnetic valve, a battery 33, a circuit board and the like located in the shell 31.

[0050] In an embodiment, the end of the nipple passage portion 23 is further provided with a negative pressure chamber 25, the internal space of the end of the nipple passage portion 23 is connected with the negative pressure chamber 25, a diaphragm 26 is arranged in the negative pressure chamber 25, and the diaphragm 26 is used for air-liquid isolation between the internal space of the nipple passage portion 23 and the main machine 30. After the breast shield 20 is assembled with the milk storage container 10, the negative pressure chamber 25, the diaphragm 26 and the inner wall of the milk storage container 10 form a seal.

[0051] In one embodiment, the bottom of the negative pressure bin 25 is provided with a milk flow port, and a one-way valve 27 is arranged at the milk flow port, and the one-way valve 27 is configured to allow the one-way flow of milk from the breast pumping channel 203 to the storage space 101 in the negative pressure bin 25. The one-way valve 27 can be a duckbill valve, and of course, in other embodiments, a sheet type one-way valve can also be used, and the embodiments of the present application do not limit this.

[0052] The embodiments of the present application form a milk storage space inside the breast pump, and a milk pouring port is formed on the breast pump, the milk pouring port is used to communicate the milk storage space and the outside, the edge of the milk pouring port is formed with a gap, the gap is communicated with the milk pouring port, and the size of the gap in the direction of the edge is smaller than the size of the milk pouring port in the direction of the edge. The addition of the gap changes the path of the liquid flow, helps to break the tension film on the surface of the breast milk, reduces the resistance of the liquid flow, thereby improving the smoothness of the milk pouring, and the gap can also play a role of returning the outside air to the inside of the milk storage space, so that the pressure difference inside and outside the milk storage space is balanced, and the milk can flow out smoothly under the action of gravity.

[0053] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and do not limit the present application.

[0054] The above is only a specific embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A breast pump, wherein, The breast pump is internally formed with a milk storage space, and a milk pouring opening is formed on the breast pump and is used to communicate the milk storage space with the outside world.

2. The breast pump of claim 1, wherein, The transverse size of the milk pouring opening is greater than the transverse size of the notch.

3. The breast pump of claim 1, wherein, The longitudinal size of the milk pouring opening is less than the longitudinal size of the notch.

4. The breast pump of any one of claims 1-3, wherein, The edge of the milk pouring opening comprises a straight line type edge, and the edge of the notch comprises a curved line type edge.

5. The breast pump of any one of claims 1-3, wherein, The shape of the milk pouring opening is a long strip shape, and the notch is located at the long side edge of the milk pouring opening.

6. The breast pump of any one of claims 1-3, wherein, The notch is located at the lower side of the milk pouring opening.

7. The breast pump of any one of claims 1-3, wherein, The breast pump comprises a milk bowl and a breast shield, the milk bowl and the breast shield enclose the milk storage space, and the milk pouring opening and the notch are located on the breast shield.

8. The breast pump of any one of claims 1-3, wherein, The breast shield is at least partially made of a hard material, and the milk pouring opening and the notch are formed on the portion made of the hard material.

9. The breast pump of any one of claims 1-3, wherein, The notch is formed at the middle position of the lower edge of the milk pouring opening.

10. A breast shield, wherein, The breast shield is formed with a milk pouring opening, the milk pouring opening is used to communicate the milk storage space of the breast pump with the outside world, the edge of the milk pouring opening is formed with a notch, the notch is communicated with the milk pouring opening, and the size of the notch in the direction of the edge is less than the size of the milk pouring opening in the direction of the edge.

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