Breast pumping assembly and breast pump

Abstract

The utility model provides a breast pumping assembly and a breast pump. The breast pumping assembly comprises an elastic shell and a double-layer adsorption cover embedded in the inner end face of the shell. A milk conveying opening is formed in the shell; the double-layer adsorption cover comprises an inner cover and an outer cover connected with the outer wall of the inner cover; the inner cover comprises a nipple cavity and an inner layer patch connected with the nipple cavity, a gap is formed between the inner layer patch and the outer cover, and a milk outlet is formed in the nipple cavity and connected with the milk conveying opening through a milk collecting flow channel in the shell. The breast pumping assembly adopts the double-layer adsorption cover, so that the adsorption force with the breast can be increased, the breast pumping assembly does not need to be held by hands when the breast pump works, the risk that air enters the inner cover is reduced, and the breast pumping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumping products, in particular to a breast pumping assembly and a breast pump. Background Art

[0002] A breast pump can suck breast milk into a collection bottle, which greatly alleviates the breastfeeding problems of working women. A breast pump generally includes a negative pressure device, a collection container, a breast shield that fits on the breast, and a corresponding connecting hose. The negative pressure device is used to make the inside of the breast shield negative pressure. When the air pressure in the breast shield is lower than the pressure in the breast, the milk is sucked out and flows into the collection container. In order to prevent the breast shield from falling off the breast, and to prevent the breast shield from not fitting well with the breast skin and external air from entering the breast shield and affecting the efficiency of milk suction, the breast shield needs to be held by hand throughout the use, which undoubtedly increases the physical fatigue of breastfeeding women.

[0003] In order to solve the problem of needing to hold the breast pump by hand during use, the Chinese patent with publication number CN208372202U has a cover threadedly connected to the edge of the bell mouth close to the breast, and a three-way mechanism is arranged inside the cover. The three-way mechanism is connected to the bell mouth, the milk bottle and the pipeline respectively. When using the breast pump, the cover only needs to be placed directly on the clothes in front of the chest, and the breast pump does not need to be held by hand. However, the newly added parts such as the cover and the three-way mechanism have a certain weight, which will have a negative impact on the fit between the bell mouth and the breast. Even if the cover is stored in clothes, it can be foreseen that if the cover is not held by hand, the bell mouth will fall off the breast and cannot suck milk, and air will get into the bell mouth to reduce the sucking efficiency, and the effect of not needing to hold the breast pump by hand cannot be achieved well. Utility Model Content

[0004] The utility model aims to solve the technical problems that the existing breast pump needs to hold the milk suction part by hand during the whole process of use, and the milk suction part has poor hand-free effect, and provides a breast suction component and a breast pump with good hand-free effect. The breast pump has sufficient adsorption force when working, does not need hand-holding, can free hands and reduce body fatigue.

[0005] In order to achieve the above-mentioned purpose of the utility model, the first aspect of the utility model provides a breast suction assembly, including an elastic shell and a double-layer suction cover embedded in the inner end surface of the shell; the shell is provided with a milk delivery port; the double-layer suction cover includes an inner cover and an outer cover connected to the outer wall of the inner cover; the inner cover includes a nipple cavity and an inner layer sticker connected to the nipple cavity, a gap is provided between the inner layer sticker and the outer cover, a milk outlet hole is opened on the nipple cavity, and the milk outlet hole is connected to the milk delivery port through a milk collecting channel in the shell.

[0006] The above technical solution: when in use, the user aligns the nipple with the nipple cavity and presses the shell of the breast suction assembly toward the chest. After the shell is deformed, it drives the double-layer adsorption cover to deform under pressure. On the one hand, it can expel the air in the inner cover, so that the inner wall of the inner cover fits tightly with the breast to generate adsorption force. On the other hand, it can also expel the air in the cavity formed by the outer wall of the inner cover, the inner wall of the outer cover and the breast, so that the air pressure in the cavity is lower than the external air pressure. Through the pressure difference between the inside and the outside, an air pressure is applied to the breast suction assembly toward the breast. The air pressure and the adsorption force work together to enhance the firmness of the breast suction assembly adsorbing the breast. In addition, when in use, the negative pressure cavity formed by the outer wall of the inner cover, the inner wall of the outer cover and the breast can reduce the risk of air drilling into the inner cover, thereby improving the breast suction efficiency.

[0007] Preferably, the inner end surface of the shell is further provided with a groove outside the inner concave surface, and the first breast pumping component further comprises an outer layer sticker embedded in the groove, and the thickness of the outer layer sticker is greater than or equal to the depth of the groove.

[0008] The above technical solution: by arranging an outer layer of stickers that fit the breast on the inner end surface of the shell, the fit between the inner end surface of the shell and the breast can be enhanced, and the effect of the first breast pumping component without hand support can be enhanced.

[0009] Further preferably, the body-fitting surface of the outer layer is provided with adhesive.

[0010] The above technical solution achieves adhesion of the outer layer to the breast through adhesive, further enhancing the firmness of the connection between the first breast pumping component and the breast, and enhancing the effect of eliminating the need to hold the first breast pumping component by hand.

[0011] Preferably, the inner end surface of the shell is further provided with a groove located outside the inner concave surface, and the first breast pumping component also includes an outer layer sticker embedded in the groove, and the body-fitting surface of the outer layer sticker is provided with adhesive, and the total thickness of the adhesive and the outer layer sticker is greater than or equal to the depth of the groove.

[0012] The above technical solution achieves adhesion of the outer layer to the breast through adhesive, further enhancing the firmness of the connection between the first breast pumping component and the breast, and enhancing the effect of not needing to hold the first breast pumping component by hand.

[0013] Preferably, the inner shroud is parallel to the outer shroud.

[0014] The above technical solution facilitates synchronous deformation of the inner cover and the outer cover, which is beneficial for exhausting air.

[0015] Preferably, the end of the nipple cavity is spherical.

[0016] The above technical solution: matches the shape of the nipple and is convenient for accommodating the nipple.

[0017] Preferably, the inner cover further comprises a transition zone connecting the nipple cavity and the inner patch, and the inner diameter of one end of the transition zone connected to the nipple cavity is smaller than the inner diameter of the other end connected to the inner patch.

[0018] The above technical solution: avoids pulling only the nipple under the action of negative pressure during breast pumping, which causes pain, and can stimulate the areola area through the transition zone, thereby enhancing lactation and improving breast pumping efficiency.

[0019] Preferably, the outer cover is connected to the outer wall of the transition zone.

[0020] The above technical solution enables the outer cover and the inner cover to be combined to have a double-layer adsorption effect and is also easy to produce.

[0021] In order to achieve the above-mentioned purpose of the utility model, the second aspect of the utility model provides a breast pump, including a negative pressure device, a liquid collecting container and a first milk suction component, the first milk suction component is the milk suction component provided by the first aspect of the utility model; the negative pressure output port of the negative pressure device is connected to the negative pressure inlet of the liquid collecting container through a first connecting tube; the milk delivery port of the first milk suction component is connected to the milk inlet port of the liquid collecting container through a second connecting tube.

[0022] The above technical solution: when in use, the user aligns the nipple with the nipple cavity and presses the shell of the first breast pump assembly toward the chest. After the shell is deformed, it drives the double-layer suction cover to deform under pressure. On the one hand, it can expel the air in the inner cover, so that the inner wall of the inner cover and the breast are closely attached to generate adsorption force. On the other hand, it can also expel the air in the cavity formed by the outer wall of the inner cover, the inner wall of the outer cover and the breast, so that the air pressure in the cavity is lower than the external air pressure. Through the pressure difference between the inside and the outside, an air pressure is applied to the first breast pump assembly toward the breast. The air pressure and the adsorption force work together to enhance the firmness of the first breast pump assembly adsorbing the breast. After the negative pressure device is started, the negative pressure output of the negative pressure device is made to Negative pressure is formed in the space formed by the outlet, the first connecting tube, the liquid collecting container, the second connecting tube, the milk collecting channel and the nipple cavity of the inner cover, thereby further enhancing the adsorption force between the inner cover and the breast. When the air pressure in the nipple cavity is lower than the internal pressure of the breast, the milk is sucked out, and the sucked milk flows into the liquid collecting container through the milk collecting channel and the second connecting tube under the action of gravity and negative pressure. The double-layer adsorption cover provided in the present application can enhance the adsorption firmness between the first breast suction component and the breast, and there is no need to hold the first breast suction component by hand during operation. In addition, the negative pressure cavity formed by the outer wall of the inner cover, the inner wall of the outer cover and the breast outside the inner cover can reduce the risk of air drilling into the inner cover, thereby improving the breast suction efficiency.

[0023] Preferably, it also includes a second adsorption component and a tee piece, the second breast suction component is the breast suction component described in the first aspect of the utility model, the first channel opening of the tee piece is connected to the milk inlet of the liquid collection container, the second channel opening of the tee piece is connected to the milk delivery port of the first breast suction component through a second connecting tube, and the third channel opening of the tee piece is connected to the milk delivery port of the second breast suction component through a third connecting tube.

[0024] The above technical solution: the first breast pumping assembly and the second breast pumping assembly are used simultaneously, so that both breasts can be pumped at the same time, saving the user's time. The three-way liquid collection container does not need to be provided with two milk inlets, which can simplify the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structural installation of the breast pump assembly in the utility model;

[0026] Figure 2 It is a schematic cross-sectional view of the breast pump assembly of the utility model after symmetrical cutting;

[0027] Figure 3 It is a three-dimensional schematic diagram of the breast pump assembly in the utility model;

[0028] Figure 4 It is a schematic diagram of the installation of the breast pump of the utility model.

[0029] Figure numerals: 1 negative pressure device; 2 liquid collecting container; 3 first breast pump assembly; 31 milk delivery port; 32 double-layer suction cover; 321 outer cover; 322 inner layer sticker; 323 transition zone; 324 nipple cavity; 33 groove; 34 outer layer sticker; 35 inner end surface of shell; 36 buckle strip; 37 shell; 38 milk collection channel; 4 second connecting pipe; 5 first connecting pipe. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0033] The utility model discloses a breast pump assembly. In one embodiment, Figure 1-Figure 3 As shown, the breast pump assembly includes an elastic shell 37 and a double-layer suction cover 32 embedded in the inner end surface 35 of the shell; the shell 37 is provided with a milk delivery port 31; the double-layer suction cover 32 includes an inner cover and an outer cover 321 connected to the outer wall of the inner cover; the inner cover includes a nipple cavity 324 and an inner layer sticker 322 connected to the nipple cavity 324, and there is a gap between the inner layer sticker 322 and the outer cover 321 to achieve double-layer air adsorption. A milk outlet hole is opened on the nipple cavity 324, and the milk outlet hole is connected to the milk delivery port 31 through a milk collecting channel 38 in the shell 37.

[0034] In this embodiment, the shell 37 is preferably made of silicone. The outer edges of the outer cover 321 and the inner layer 322 in the double-layer adsorption cover 32 can be connected to the inner end surface 35 of the shell by bonding. Preferably, a mounting groove is provided on the inner end surface 35 of the shell, and the outer edge of the outer cover 321 is turned outward to the mounting center, and the outer edge of the outer cover 321 is pressed and fixed in the mounting groove by the buckle strip 36. Figure 2 As shown, the outer cover 321 and the inner layer sticker 322 are preferably, but not limited to, bowl-shaped or trumpet-shaped. The end of the double-layer adsorption cover 32 away from the nipple cavity 324 can be as flush as possible with the inner end surface 35 of the shell. In this embodiment, the double-layer adsorption cover 32 can be integrally formed, or the inner cover can be integrally formed and then the outer cover 321 can be pasted on the outer wall of the inner cover.

[0035] In this embodiment, a milk outlet hole (not shown) is provided on the nipple cavity 324. There may be one or more milk outlet holes, preferably provided at the end of the nipple cavity 324 for collecting milk. The milk outlet hole is connected to the milk delivery port 31 through a milk collecting channel 38 in the shell 37. The milk collecting channel 38 may be a closed channel integrally generated by the shell, or may be in the form of a separately provided plastic hose, or may be integrally formed with the double-layer adsorption cover.

[0036] In this embodiment, the double-layer suction cover 32 in the first breast pump assembly 3 is preferably made of silicone material, which is safe, non-toxic and durable.

[0037] In another preferred embodiment, Figure 2 As shown, the end of the nipple cavity 324 is spherical.

[0038] In another preferred embodiment, Figure 2 As shown, the inner cover is parallel to the outer cover 321.

[0039] In another preferred embodiment, Figure 1-Figure 2 As shown, the inner cover also includes a transition zone 323 connecting the nipple cavity 324 and the inner layer patch 322. The inner diameter of one end of the transition zone 323 connected to the nipple cavity 324 is smaller than the inner diameter of the other end connected to the inner layer patch 322. The transition zone can be in the form of a stepped hole or a cone.

[0040] Further preferably, the outer cover 321 is connected to the outer wall of the transition zone 323 .

[0041] In another preferred embodiment, Figure 1 and Figure 2 As shown, the inner end surface 35 of the shell is further provided with a groove 33 outside the inner concave surface 36 , and the first breast pumping component 3 further includes an outer layer sticker 34 embedded in the groove 33 , and the thickness of the outer layer sticker 34 is greater than or equal to the depth of the groove 33 .

[0042] In this embodiment, the inner diameter of the groove 33 is greater than the outer diameter of the inner concave surface 36, and the groove 33 surrounds the outer concave surface 36. For ease of processing, the groove 33 can be in the shape of a ring, and the shape and size of the groove 33 correspond to the outer layer sticker 34. The material of the outer layer sticker 34 is preferably silicone, which is easier to adsorb on the skin and is soft, so that the inner end surface 35 of the shell can be well fitted with the breast when different people use it. Since the thickness of the outer layer sticker 34 is greater than or equal to the depth of the groove 33, when the breast pump is used, when the user presses the chest to install the first breast pump component 3, the air in the area surrounded by the outer layer sticker 34 will be expelled to form a negative pressure space, which can also increase the adsorption force of the first breast pump component 3 on the breast.

[0043] In this embodiment, it is further preferred that the body-fitting surface of the outer layer 34 (i.e. Figure 1 The middle right side) is provided with adhesive. The adhesive is preferably biological adhesive, which still has good viscosity after repeated use for thousands of times.

[0044] In another preferred embodiment, Figure 1 and Figure 2 As shown, the inner end surface 35 of the shell is further provided with a groove 33 outside the inner concave surface 36, and the first breast pump component 3 also includes an outer layer sticker 34 embedded in the groove 33, and the body fitting surface (i.e. Figure 1 The middle right side) is provided with adhesive, and the total thickness of the adhesive and the outer layer sticker 34 is greater than or equal to the depth of the groove 33.

[0045] In this embodiment, the adhesive force of the adhesive is mainly used to enhance the suction force of the first breast suction component 3 on the breast. The shape, size and position of the groove 33 can be referred to in Embodiment 2, and will not be described in detail here.

[0046] The utility model also discloses a breast pump. In a preferred embodiment, Figure 4 As shown, it includes a negative pressure device 1, a liquid collecting container 2 and a first breast pumping component 3, and the first breast pumping component 3 has the above-mentioned breast pumping component structure; the negative pressure output port of the negative pressure device 1 is connected to the negative pressure inlet of the liquid collecting container 2 through a first connecting pipe 5; the milk delivery port 31 of the first breast pumping component 3 is connected to the milk inlet of the liquid collecting container 2 through a second connecting pipe 4.

[0047] In this embodiment, the negative pressure device 1 includes a pump body and a power supply for supplying power to the pump body. The pump body may be a piston-type micro vacuum pump or a diaphragm vacuum pump. Preferably, the piston-type micro vacuum pump has a stronger suction force and produces a vibration effect when sucking milk. This vibration helps stimulate the production of milk bursts, making the milk sucking more thorough and more comfortable. The power supply may be an existing AC to DC power supply module or a battery power supply module.

[0048] In this embodiment, the liquid collection container 2 can be a milk bottle or a milk collection bag. Preferably, it is a milk bottle with a wide diameter that can be connected with a commercial nipple. A bottle cap is provided on the milk bottle, and a negative pressure inlet and a milk inlet are provided on the bottle cap. After collecting the milk, the bottle cap can be screwed off, and the nipple can be screwed directly on the bottle body to give the milk to the infant to drink, without transferring the milk, which is more convenient.

[0049] In this embodiment, Figure 4 The partial enlarged view A in the middle shows a schematic diagram of the appearance of the shell 37 of the first breast pumping component 3, which is flat on both sides and convex in the middle, so that the user can take it easily. The shell 37 is provided with a milk delivery port 31, which is connected to the milk inlet of the liquid collection container 2 through a second connecting tube 4. The second connecting tube 4 is a plastic hose, preferably a food-grade ABS material tube. It should be noted that when the breast pump of this embodiment is used, the first breast pumping component 3 can be attached to either breast for milk extraction, not limited to Figure 1 The display is attached to the left breast. The first connecting tube 5 can be a plastic hose.

[0050] In this embodiment, if Figure 1-3 As shown, the inner end surface 35 of the shell contacts the human body, and the inner end surface 35 of the shell is a plane or a slightly concave surface so as to fit the breast.

[0051] In another preferred embodiment, the breast pump further comprises a second adsorption component and a tee piece (not shown in the figure); the second breast suction component adopts the structure of the above-mentioned breast suction component; the first channel opening of the tee piece is connected to the milk inlet of the liquid collecting container 2; the second channel opening of the tee piece is connected to the milk delivery port 31 of the first breast suction component via a second connecting tube 4; the third channel opening of the tee piece is connected to the milk delivery port 31 of the second breast suction component via a third connecting tube.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A breast pump assembly, characterized in that: It comprises an elastic shell (37) and a double-layer adsorption cover (32) embedded in the inner end surface (35) of the shell; The housing (37) is provided with a milk delivery port (31); The double-layer adsorption cover (32) comprises an inner cover and an outer cover (321) connected to the outer wall of the inner cover; the inner cover comprises a nipple cavity (324) and an inner layer sticker (322) connected to the nipple cavity (324); a gap is provided between the inner layer sticker (322) and the outer cover (321); a milk outlet hole is provided on the nipple cavity (324); the milk outlet hole is connected to the milk delivery port (31) through a milk collecting channel (38) in the shell (37).

2. A breast pump assembly according to claim 1, characterized in that The inner end surface (35) of the shell body is also provided with a groove (33) located outside the inner concave surface (36). The first breast pumping component (3) also includes an outer layer sticker (34) embedded in the groove (33). The thickness of the outer layer sticker (34) is greater than or equal to the depth of the groove (33).

3. A breast pump assembly according to claim 2, characterized in that The human body fitting surface of the outer layer sticker (34) is provided with adhesive.

4. A breast pump assembly according to claim 1, characterized in that The inner end surface (35) of the shell body is also provided with a groove (33) located outside the inner concave surface (36). The first breast pumping component (3) also includes an outer layer sticker (34) embedded in the groove (33). The human body fitting surface of the outer layer sticker (34) is provided with adhesive. The total thickness of the adhesive and the outer layer sticker (34) is greater than or equal to the depth of the groove (33).

5. A breast pump assembly according to claim 1, characterized in that The inner cover is parallel to the outer cover (321).

6. A breast pump assembly according to claim 1, characterized in that The end of the nipple cavity (324) is spherical.

7. A breast pump assembly according to any one of claims 1 to 6, characterized in that The inner cover also includes a transition zone (323) connecting the nipple cavity (324) and the inner layer patch (322), and the inner diameter of one end of the transition zone (323) connected to the nipple cavity (324) is smaller than the inner diameter of the other end connected to the inner layer patch (322).

8. A breast pump assembly according to claim 7, characterized in that The outer cover (321) is connected to the outer wall of the transition zone (323).

9. A breast pump, characterized in that: The invention comprises a negative pressure device (1), a liquid collecting container (2) and a first breast pumping assembly (3), wherein the first breast pumping assembly (3) is the breast pumping assembly according to any one of claims 1 to 8; The negative pressure output port of the negative pressure device (1) is connected to the negative pressure inlet port of the liquid collecting container (2) via a first connecting pipe (5); The milk delivery port (31) of the first breast pumping assembly (3) is connected to the milk inlet port of the liquid collection container (2) via a second connecting tube (4).

10. A breast pump as claimed in claim 9, characterized in that The invention also comprises a second adsorption component and a tee, wherein the second breast pumping component is the breast pumping component according to any one of claims 1 to 8, wherein the first channel opening of the tee is connected to the milk inlet of the liquid collecting container (2), the second channel opening of the tee is connected to the milk delivery port (31) of the first breast pumping component via a second connecting pipe (4), and the third channel opening of the tee is connected to the milk delivery port (31) of the second breast pumping component via a third connecting pipe.

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