A breast pump

Abstract

The application discloses a breast pump, which comprises a flange part, a one-way valve part and a diaphragm part; wherein the flange part comprises a flange groove, the lower side wall of the flange groove is provided with a milk flow hole; the one-way valve part is arranged at the outlet of the milk flow hole to control the one-way flow of the breast milk; the diaphragm part is arranged at the opening of the flange groove, and the central axis of the diaphragm part is arranged in parallel with the central axis of the flange part. Through the scheme, the breast milk can flow into the storage cavity through the milk flow hole quickly and sufficiently, so that the waste caused by the accumulation of the breast milk in other parts can be reduced.

Description

Technical Field

[0001] This disclosure generally relates to the field of maternal and infant product technology. More specifically, this disclosure relates to a breast pump. Background Technology

[0002] Existing breast pumps may include a feeding bowl and a flange. The inner wall of the feeding bowl and the outer wall of the flange can form a receiving cavity. The inner wall of the flange may have a milk flow hole that connects to the receiving cavity and the interior of the flange. When using the breast pump, the inside of the flange can be pressed against the breast. After the breast pump extracts breast milk, the milk first flows into the interior of the flange and then through the milk flow hole into the receiving cavity.

[0003] However, existing milk flow holes are generally located in a relatively deep position. When the breast is in contact with the flange, the distance between the existing milk flow hole and the breast is relatively far. The breast milk has to travel a long distance before it can flow into the receiving cavity through the milk flow hole. In addition, it may cause the breast milk to accumulate in certain parts (duckbill valve) and not flow into the milk storage cavity in sufficient quantities, resulting in the waste of some breast milk.

[0004] In view of this, there is an urgent need to provide a breast pump that allows breast milk to flow quickly and fully through the milk flow hole into the storage chamber, thereby reducing the waste caused by breast milk accumulating in other parts. Utility Model Content

[0005] In order to at least address one or more of the technical problems mentioned above, this disclosure proposes a solution for a breast pump in several aspects.

[0006] In a first aspect, this disclosure provides a breast pump, the breast pump including a flange component, a one-way valve component, and a diaphragm component; wherein, the flange component includes a flange groove, and a milk flow hole is provided on the lower sidewall of the flange groove; the one-way valve component is disposed at the outlet of the milk flow hole to control the one-way flow of breast milk; the diaphragm component is disposed at the opening of the flange groove, and the central axis of the diaphragm component is arranged parallel to the central axis of the flange component.

[0007] In some embodiments, the flange groove is annular and is disposed at the end of the flange component, wherein the central axis of the flange groove and the central axis of the diaphragm component are coaxially arranged.

[0008] In some embodiments, the central axis of the diaphragm component and the central axis of the emulsion orifice are arranged perpendicularly.

[0009] In some embodiments, the breast pump further includes a milk bowl component, wherein a negative pressure hole is formed inside the milk bowl component, and the diaphragm component is disposed between the negative pressure hole and the flange groove.

[0010] In some embodiments, the negative pressure orifice is cylindrical, and the sidewall of the negative pressure orifice extends from the inner surface of the milk bowl component along the central axis of the flange component to the diaphragm component, wherein the diaphragm component seals the opening of the negative pressure orifice.

[0011] In some embodiments, the one-way valve component includes a plate valve having at least one notch.

[0012] In some embodiments, the shape of the cut includes one or more of the following: straight, cross-shaped, and arc-shaped.

[0013] In some embodiments, the one-way valve component includes a duckbill valve.

[0014] In some embodiments, the flange component further includes a flange body, the flange body being funnel-shaped, wherein the inner side of the flange body has a fitting surface for fitting against the chest.

[0015] In some embodiments, the breast pump further includes a storage device disposed at the outlet of the milk flow hole for storing the extracted breast milk.

[0016] In some embodiments, the breast pump further includes an adsorption device connected to the negative pressure hole to provide a negative pressure environment within the negative pressure hole.

[0017] In some embodiments, the breast pump further includes a main unit component, the main unit component having a first through hole inside, and the bowl body of the milk bowl component being connected to the first through hole.

[0018] In the breast pump provided above, this embodiment of the application has a milk flow hole provided on the lower side wall of the flange groove, and a diaphragm component is provided at the opening of the flange groove. The central axis of the diaphragm component is arranged parallel to the central axis of the flange component. When the breast milk is located in the flange groove, the flow path of the breast milk can be reduced, so that the breast milk can flow into the storage cavity quickly and fully through the milk flow hole. This reduces the possibility of breast milk accumulating or being wasted in certain components (such as the duckbill valve). Attached Figure Description

[0019] The above and other objects, features, and advantages of exemplary embodiments of this disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 An exemplary cross-sectional view of a breast pump according to some embodiments of this application is shown; Figure 2 An exemplary exploded view of a breast pump according to other embodiments of this application is shown; Figure 3 An exemplary structural diagram of a breast pump in use, according to some embodiments of this application, is shown.

[0020] Tag name: 10 - Flange assembly, 101 - Side wall, 11 - Flange groove, 111 - Milk flow hole, 12 - Flange body, 121 - Fitting surface, 20 - One-way valve assembly, 213 - Connecting cavity, 30 - Diaphragm assembly, 301 - Receiving cavity, 40 - Main unit assembly, 401 - Flange cavity, 41 - First through hole, 411 - Main unit negative pressure pipe, 50 - Milk bowl assembly, 51 - Bowl body, 511 - Negative pressure hole, 512 - Connecting channel, 513 - Elastic clip, 52 - Bowl mounting part. Detailed Implementation

[0021] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0022] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0024] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0025] The specific embodiments disclosed herein will now be described in detail with reference to the accompanying drawings.

[0026] Figure 1 An exemplary cross-sectional view of a breast pump according to some embodiments of this application is shown. Figure 2 An exemplary exploded view of a breast pump according to other embodiments of this application is shown. Figure 1 and Figure 2 As shown, the breast pump includes a flange component 10, a one-way valve component 20, and a diaphragm component 30; wherein, the flange component 10 includes a flange groove 11, and the side wall 101 of the flange groove 11 is provided with a milk flow hole 111; the one-way valve component 20 is disposed at the outlet of the milk flow hole 111 to control the one-way flow of breast milk; the diaphragm component 30 is disposed at the opening of the flange groove 11, and the central axis of the diaphragm component 30 is parallel to the central axis of the flange component 10.

[0027] It should be understood that in this application, "up" and "down" refer to the coordinate system corresponding to the breast pump in its usage state. Furthermore, when the user uses the breast pump, the side closer to the user can be considered the proximal end, and the side farther from the user can be considered the distal end.

[0028] A milk flow hole is provided on the lower side wall of the flange groove. A diaphragm component is located at the opening of the flange groove, and the central axis of the diaphragm component is parallel to the central axis of the flange component. Alternatively, the milk flow hole can be located on the lower side wall of the flange groove and near the bottom of the flange groove. This reduces the path of the breast milk to the milk flow hole when it flows in the flange groove, and the flow path is more direct and less tortuous. Therefore, the breast milk can flow into the milk flow hole quickly and fully, thus preventing the breast milk from accumulating in the flange groove.

[0029] Specifically, in some embodiments, the aforementioned flange component 10 may include a flange groove 11 and a flange body 12, wherein the flange groove 11 may be connected to the flange body 12, and the flange groove 11 may be located at the far end of the flange body 12.

[0030] In some embodiments, the flange body 12 may be configured as a funnel shape, and its inner side may have a fitting surface 121, which can fit against the user's breast when the user uses the breast pump.

[0031] In some embodiments, the flange groove 11 may be configured as an annular shape, and the central axis of the flange groove 11 may be coaxial with the central axis of the diaphragm component.

[0032] In some embodiments, the flange recess 11 may include a sidewall 101 and a bottom 102.

[0033] Specifically, the sidewall 101 of the flange groove 11 can be arranged parallel to the central axis of the flange groove 11, wherein the angle between the sidewall 101 and the central axis of the flange groove 11 can be 0° or close to 0°. Furthermore, the bottom 102 of the flange groove 11 can be arranged perpendicular to the central axis of the flange groove 11, wherein the angle between the bottom 102 and the central axis of the flange groove 11 can be 90° or close to 90°.

[0034] In some embodiments, the connection between the flange groove 11 and the flange body 12 may include the connection between the bottom 102 of the flange groove 11 and the flange body 12.

[0035] In some embodiments, when a user uses the breast pump, the contact surface 121 can be in contact with the user's breast, at which time the nipple can be located within or near the flange groove 11.

[0036] In some embodiments, a flow hole 111 may be provided on the side wall 101 of the flange groove 11.

[0037] In some embodiments, the emulsion orifice 111 may be located near the bottom 102 of the flange groove 11. In other embodiments, the emulsion orifice 111 may be located in the area where the sidewall 101 of the flange groove 11 connects to the bottom 102 of the flange groove 11.

[0038] In some embodiments, the emulsion flowing from the nipple can first flow into the flange body 12, and then into the flange groove 11. In other embodiments, the emulsion flowing from the nipple can flow directly into the flange groove 11. It is understood that because the emulsion orifice 111 is located near the bottom 102 of the flange groove 11 or in the area where the sidewall 101 of the flange groove 11 connects to the bottom 102 of the flange groove 11, the emulsion can flow into the emulsion orifice 111 as quickly as possible, thereby reducing the flow path of the emulsion and thus reducing the accumulation of emulsion.

[0039] In some embodiments, a one-way valve component 20 may be provided at the outlet of the milk flow hole 111, thereby controlling the one-way flow of breast milk. Specifically, after the aforementioned milk flows into the milk flow hole 111 on the side wall 101 of the flange groove 11, the milk can flow from the outlet of the milk flow hole 111 into the one-way valve component 20, and then flow outward.

[0040] In some embodiments, the aforementioned one-way valve component 20 may include a one-way valve component 20 mounting portion and a one-way valve component 20 body connected to the one-way valve component 20 mounting portion.

[0041] In some embodiments, the aforementioned one-way valve component 20 mounting portion can be connected to the sidewall 101 of the flange groove 11, so that the main body of the one-way valve component 20 can be disposed at the outlet of the emulsion orifice 111.

[0042] In some embodiments, the mounting portion of the aforementioned one-way valve component 20 can be configured as an annular shape, which can be fitted onto the opening of the aforementioned flange groove 11 and coaxially arranged with the central axis of the flange groove 11. In this case, the main body of the aforementioned one-way valve component 20 can extend along the side wall 101 of the flange groove 11 and extend to the outlet of the emulsion orifice 111.

[0043] In some embodiments, the aforementioned diaphragm component 30 may be disposed at the opening of the flange groove 11, and the central axis of the diaphragm component 30 may be disposed parallel to the central axis of the flange component 10.

[0044] In some embodiments, the diaphragm component 30 may include a first side and a second side, wherein the first side may be the side facing the flange component 10, and the second side may be the side facing away from the flange component 10. It is understood that the first side may be the side facing the proximal end, and the second side may be the side facing the distal end.

[0045] Furthermore, the first side of the diaphragm component can be mounted on the aforementioned flange groove 11, so that the diaphragm component 30 can be mounted on the flange component 10. In some embodiments, the first side of the diaphragm component can be bonded to the sidewall 101 of the flange groove 11.

[0046] In some embodiments, the central axis of the diaphragm component 30 may be arranged parallel to the central axis of the flange component 10. Further, the central axis of the diaphragm component 30 may be coaxial with the central axis of the flange component 10. Even further, the central axis of the diaphragm component 30 may be perpendicular to the central axis of the emulsion orifice 111, wherein the included angle between the central axis of the diaphragm component 30 and the central axis of the emulsion orifice 111 may be 90° or close to 90°. It is understood that because the diaphragm component 30 is disposed at the opening of the flange groove 11, rather than on the upper sidewall 101 of the flange groove 11, the central axis of the diaphragm component 30 can be parallel to the central axis of the flange component 10, which can reduce the flow path of the emulsion within the flange groove 11.

[0047] In some embodiments, the breast pump may further include a main unit 40, the interior of which may be provided with a first through hole 41, the central axis of which may be a first axis.

[0048] In some embodiments, the cross-section of the first through hole 41 can be set to be circular, and the cross-section of the first through hole 41 can also be composed of the same and / or different arcs, for example, it can be composed of two, three or four or more sets of arcs.

[0049] In some embodiments, when the cross-section of the first through hole 41 is composed of four sets of arcs, the first through hole 41 may include a first arc, a second arc, a third arc, and a fourth arc. The bottom 102 of the first through hole 41 may be composed of the first arc, the top may be composed of the second arc, and the side portions located between the bottom 102 and the top and on both sides may be composed of the third arc and the fourth arc, respectively. The radius of curvature of the first arc may be greater than the radii of curvature of the second, third, and fourth arcs. The radius of curvature of the third arc may be the same as the radius of curvature of the fourth arc, and the radius of curvature of the second arc may be smaller than the radii of curvature of the third and fourth arcs.

[0050] In some embodiments, the breast pump may further include a feeding bowl component 50, the interior of which is formed a negative pressure hole, and the diaphragm component 30 is disposed between the negative pressure hole and the flange groove 11. In some embodiments, the sidewall of the negative pressure hole 511 extends from the inner surface of the feeding bowl component 50 along the central axis of the flange component 10 to the diaphragm component 30, wherein the diaphragm component 30 seals the opening of the negative pressure hole 511.

[0051] In some embodiments, the milk bowl component 50 may include a bowl body 51 and a bowl mounting portion 52 connected to the bowl body 51, wherein the bowl body 51 may be a cylindrical structure extending along a first axis, and the bowl mounting portion 52 may be annular.

[0052] In some embodiments, the bowl body 51 may be at least partially disposed within the first through hole 41 of the main unit 40, and the outer wall of the bowl body 51 may be disposed opposite to the inner wall of the first through hole 41, and the two may be installed together. In some embodiments, when the cross-section of the first through hole 41 is an arc, the cross-section of the outer wall of the bowl body 51 may be a corresponding arc; when the cross-section of the first through hole 41 is composed of multiple arcs, the cross-section of the outer wall of the bowl body 51 may also be composed of multiple corresponding arcs.

[0053] In some embodiments, a negative pressure hole 511 is formed in the bowl body 51. Specifically, the distal end face of the bowl body 51 can be configured as an arc surface, and a negative pressure hole 511 extending toward the diaphragm member 30 can be formed on the inner surface of the arc surface. The sidewall of the negative pressure hole 511 can be fitted around the outer periphery of the diaphragm member 30. The central axis of the negative pressure hole 511 can be parallel to the central axis of the first through hole 41, and the axis of the negative pressure hole 511 can also be parallel to the central axis of the diaphragm member 30.

[0054] In some embodiments, the opening of the aforementioned negative pressure hole may be positioned opposite to the opening of the flange groove 11, and the diaphragm component 30 may be positioned between the opening of the negative pressure hole and the opening of the flange groove 11. It is understood that the opening direction of the negative pressure hole and the opening direction of the diaphragm component 30 may be opposite in this case. In some embodiments, the axis of symmetry of the aforementioned negative pressure hole, the axis of symmetry of the diaphragm component 30, and the axis of symmetry of the flange groove 11 may be coaxially arranged.

[0055] Specifically, the second side of the diaphragm component 30 can be connected to the opening of the negative pressure hole, and the first side of the diaphragm component can be connected to the opening of the flange groove 11, and they can be sealed together, for example, by interference fit.

[0056] In some embodiments, the bowl mounting portion 52 may be configured as annular, and the proximal end of the flange body 12 may be formed with a flange mounting portion perpendicular to the central axis of the flange component 10. This flange mounting portion may also be configured as annular, and the aforementioned bowl mounting portion 52 may be connected to the flange mounting portion, thereby allowing the milk bowl component 50 and the flange component 10 to be mounted together.

[0057] In some embodiments, when the flange component 10 and the feeding bowl component 50 are assembled together, a receiving cavity 301 is formed between the bottom 102 of the flange component 10 and the inner wall of the feeding bowl component 50, which can be used to temporarily store breast milk. Further, a flange cavity 401 can be formed between the first side of the diaphragm component 30 and the inner side of the flange component 10. In some embodiments, the aforementioned milk flow hole 111 can connect the aforementioned receiving cavity 301 and the flange cavity 401.

[0058] Understandably, one side of the flange cavity 401 can be open, and the direction of the opening can be towards the proximal end. When the user uses the breast pump, they can press their breasts against the inner wall of the flange body 12 along the aforementioned opening, at which time the flange cavity 401 can be a closed cavity. After breast milk flows into the aforementioned receiving cavity 301, it can flow into the receiving cavity 301 along the milk flow hole 111 to achieve temporary storage of breast milk.

[0059] In some embodiments, the aforementioned breast pump may further include a storage device disposed at the outlet of the milk flow hole 111, which may be connected to the outlet of the milk flow hole 111, thereby storing the pumped breast milk.

[0060] In some embodiments, the aforementioned storage device may be indirectly connected to the outlet of the milk flow hole 111. For example, the storage device may be connected to the receiving cavity 301, so that breast milk located in the receiving cavity 301 can be drawn into the storage device to achieve breast milk storage.

[0061] In some embodiments, the aforementioned storage device can be directly connected to the outlet of the milk flow hole 111. For example, the storage device can be connected to the one-way valve component 20 provided at the outlet of the milk flow hole 111, so that the breast milk flowing out of the outlet of the milk flow hole 111 can flow directly into the storage device without passing through the receiving cavity 301, thereby achieving the storage of breast milk.

[0062] In some embodiments, the aforementioned one-way valve component 20 may include a duckbill valve, the outlet of which may be inclined. In some embodiments, the inclined arrangement of the outlet of the aforementioned duckbill valve may include a direction along the axis of symmetry of the flow orifice 111, wherein the projection of the inlet of the duckbill valve and the projection of the outlet of the duckbill valve are not at the same position. In some embodiments, the outlet of the aforementioned duckbill valve may be located on the side close to the outer wall of the flange body 12, which can reduce space utilization.

[0063] In some embodiments, the outlet of the aforementioned duckbill valve can be configured as two closely contacting lips, which can be made of silicone. When a pressure difference is formed between the two ends of the duckbill valve (e.g., between the flange cavity 401 and the receiving cavity 301), this pressure difference will cause the two lips to deform and form a gap channel, allowing the emulsion to flow from the flange cavity 401 into the receiving cavity 301. When the negative pressure in the flange cavity 401 disappears, the pressure in the receiving cavities 301 on both sides of the duckbill valve is balanced with the pressure in the flange cavity 401, and the two lips can automatically close due to their own elasticity, forming a tight seal, thereby preventing the breast milk in the receiving cavity 301 from flowing back into the flange cavity 401.

[0064] In some embodiments, the aforementioned one-way valve component 20 may include a plate valve, wherein the plate valve may be plate-shaped. Further, the plate valve may have at least one cutout, wherein the shape of the cutout may be one or more of a straight line, a cross, and an arc.

[0065] In some embodiments, the aforementioned plate valve may be integrated with the diaphragm component 30. When the diaphragm component 30 is installed at the opening of the flange groove 11, the plate valve may be located at the outlet of the emulsion orifice 111.

[0066] In other embodiments, the aforementioned plate valve may include a plate valve mounting portion and a plate valve body. The plate valve mounting portion may be fitted between the diaphragm component 30 and the opening of the flange groove 11, and the aforementioned plate valve body may be arranged perpendicularly to the plate valve mounting portion, so that the plate valve body can be located at the outlet of the emulsion orifice 111. In this case, at least one cutout may be provided on the aforementioned plate valve body.

[0067] Furthermore, when a pressure difference is formed between the two ends of the aforementioned plate valve (e.g., between the flange cavity 401 and the receiving cavity 301), the cut can be absorbed to form a channel, allowing breast milk to pass through. When the pressure on both sides reaches equilibrium or reverses, the plate valve, under its own elastic restoring force and / or reverse pressure, quickly falls back and fits tightly, cutting off the flow channel and preventing the breast milk from flowing backward.

[0068] Understandably, compared to using a duckbill valve, a plate valve can fit snugly against the outlet of the milk flow hole 111, occupying less space and facilitating the miniaturization of the breast pump. Furthermore, since the duckbill valve itself has a tubular pressure-accumulating section, while the plate valve does not, when breast milk flows through the milk flow hole and then through the plate valve, it can prevent breast milk from accumulating in the tubular pressure-accumulating section and thus avoiding waste. At the same time, it allows breast milk to flow quickly and fully through the milk flow hole and then through the plate valve into the storage cavity, thereby preventing breast milk from accumulating in the flange groove.

[0069] The one-way valve component 20 ensures that the negative pressure generated by the breast pump only acts on the breasts for milk extraction, while allowing breast milk to flow only into the receiving cavity 301, forming a one-way flow path and preventing breast milk blockage or reverse stagnation. Furthermore, when the breast pump is paused or reversed, the duckbill valve closes to prevent breast milk from flowing back into the feeding bowl or the main unit, avoiding contact between breast milk and air or the negative pressure channel, thus reducing bacterial contamination.

[0070] In some embodiments, the breast pump further includes an adsorption device connected to the negative pressure hole to provide a negative pressure environment within the negative pressure hole.

[0071] Specifically, a radially extending main unit protrusion is formed on the lower side of the inner wall of the first through hole 41, and a main unit negative pressure pipe 411 with an axis parallel to the axis of symmetry of the first through hole 41 is formed on the main unit protrusion. Further, a connecting channel 512 is formed at the bottom 102 of the bowl body 51, and the negative pressure hole 511 and the main unit negative pressure pipe 411 are connected through the connecting channel 512, wherein the connecting channel 512 and the main unit negative pressure pipe 411 are connected by an interference fit.

[0072] In some embodiments, connecting the adsorption device to the negative pressure hole may include: the adsorption device being connected to the negative pressure pipe 411 of the host through the host negative pressure pipe 411 and the connecting channel 512.

[0073] In some embodiments, when the main unit component 40 and the milk bowl component 50 are assembled together, the aforementioned connecting channel 512 can extend into the main unit negative pressure pipe 411 to achieve connection between the connecting channel 512 and the negative pressure pipe. At this time, the negative pressure hole 511, the connecting channel 512, and the main unit negative pressure pipe 411 can form a negative pressure channel. In some embodiments, the end of the aforementioned main unit negative pressure pipe 411 can be made of silicone material, and the aforementioned connecting channel 512 can be at least partially made of plastic material. The connecting channel 512 and the main unit negative pressure pipe 411 can be connected by an interference fit to achieve a seal between them.

[0074] In some embodiments, the adsorption component can be disposed within the host component 40, and the adsorption end of the adsorption component can be connected to the aforementioned negative pressure channel. When the adsorption component is in working condition, the suction force of its adsorption end can be transmitted to the negative pressure hole 511 along the aforementioned host negative pressure pipe 411 and connecting channel 512.

[0075] In some embodiments, the diaphragm component 30 is made of silicone material. When suction is generated in the negative pressure hole 511, the diaphragm component 30 contracts along the axis, thereby creating a negative pressure environment on the side of the diaphragm component 30 facing the flange component to achieve liquid absorption.

[0076] In some embodiments, a connecting cavity 213 may be formed between the aforementioned diaphragm component 30 and the aforementioned negative pressure hole 511. Furthermore, the connecting cavity 213 may be connected to one end of the host negative pressure pipe 411 via a connecting channel 512, and the other end of the host negative pressure pipe 411 may be connected to the adsorption component.

[0077] When a user uses the breast pump, it can be worn on the chest, with the inner wall of the aforementioned flange component 10 fitting snugly against the chest, and the chest extending into the flange cavity 401. When the aforementioned suction component is in operation, the suction end of the suction component can generate suction, which can enter the negative pressure pipe 411 of the main unit and be transmitted along the negative pressure pipe 411 to the connecting cavity 213, thus creating a negative pressure environment within the connecting cavity 213.

[0078] Understandably, since the diaphragm component 30 can be made of silicone, it can deform towards the end face of the bowl body 51 after being subjected to the adsorption force within the connecting cavity 213. In a direction parallel to the first axis, the diaphragm component 30 can deform towards the side opposite to the flange component 10. This side of the diaphragm component 30 towards the flange can also create a negative pressure environment, meaning the flange cavity 401 is under negative pressure, thus generating suction that can adsorb the breast tissue, thereby drawing out breast milk. Furthermore, the adsorbed breast milk can flow into the receiving cavity 301 along the milk flow hole 111.

[0079] In some embodiments, the breast pump may be equipped with a device to remind the main unit 40 and the milk bowl component 50 to be installed in place. For example, the breast pump may be equipped with an elastic clip 513, a positioning groove, and a guide groove. When the main unit 40 and the milk bowl component 50 are installed, the elastic clip 513 can move along the guide groove. When the installation is completed, the elastic clip 513 can spring into the positioning groove to provide a reminder.

[0080] Specifically, an elastic retainer 513 may be provided on the inner wall of the first through hole 41. Further, multiple elastic retainers 513 may be provided, and these multiple elastic retainers may be spaced apart on the inner wall of the first through hole 41 along the circumferential direction of the inner wall. In some embodiments, a guide groove and a positioning groove extending along the axis of the breast pump may be provided on the outer wall of the bowl body 51, and the positioning groove may be provided on the side of the guide groove near the bowl mounting portion.

[0081] In some embodiments, the aforementioned resilient latch 513 may include a ball head component: the ball head component may be an exposed small steel ball or a hard plastic ball. Further, it may contact a guide groove and move along the guide groove. The ball head component may be smooth to reduce friction during movement. Further, the ball head component may contact a positioning groove. Even further, the resilient latch may also include a spring component, which may be installed inside the ball head component and can provide continuous outward pressure to the ball head component. In addition, the resilient latch 513 may also include a sleeve component, which may be made of metal or high-strength plastic, for accommodating the spring component and the ball head component, and for pressing the spring component and the ball head component into the sleeve component. When the resilient latch 513 is subjected to external pressure, the ball head component can be compressed back into the sleeve component. At this time, the ball head component is subjected to an outward thrust from the spring component. When the external pressure and the force of the spring component are equal, the ball head component can be in an equilibrium position and remain unchanged.

[0082] Figure 3 An exemplary structural diagram of a breast pump in use, according to some embodiments of this application, is shown. Figure 3 As shown, in some embodiments, a flange cavity 401 may be formed between the diaphragm component 30, the inner side of the flange groove 11, and the inner side of the flange body 12. Furthermore, the flange body 12 may have a contact surface 121, which is used when the user uses the breast pump (e.g., when...). Figure 3 As shown), the contact surface 121 can face the chest and can be attached to the chest.

[0083] In some embodiments, when a user uses the breast pump, after the diaphragm component 30 is subjected to pressure generated by the negative pressure of the connecting cavity 213, the diaphragm component 30 can deform and move toward the side opposite to the flange cavity 401, thereby causing a negative pressure to also be formed inside the flange cavity 401, which in turn generates suction on the breast, thereby drawing out breast milk. The drawn-out breast milk can flow into the receiving cavity 301 along the milk flow hole 111, thereby reducing the retention of breast milk in the flange cavity 401 and reducing the occurrence of breast milk accumulation.

[0084] In summary, through the solution of this application, the embodiment of this application provides a milk flow hole 111 on the side wall 101 of the flange groove 11, and the diaphragm component 30 is disposed at the opening of the flange groove 11. The central axis of the diaphragm component 30 is arranged parallel to the central axis of the flange component 10. The milk flow hole can also be disposed on the lower side wall of the flange groove and near the bottom of the flange groove. This reduces the path of the breast milk to the milk flow hole when it flows in the flange groove, and the flow path is more direct and less tortuous. Therefore, the breast milk can flow into the milk flow hole quickly and fully, thereby avoiding the accumulation of breast milk in the flange groove.

[0085] Furthermore, by using a plate valve as the one-way valve component, compared to using a duckbill valve (which has a tubular accumulation section), the plate valve does not have the aforementioned tubular accumulation section. When breast milk flows through the milk flow orifice into the plate valve, it avoids the accumulation of breast milk in the tubular accumulation section, allowing the breast milk to quickly and fully pass through the milk flow orifice and then through the plate valve into the storage cavity, thereby preventing the accumulation of breast milk in the flange groove. In addition, by using a plate valve, the accumulation of breast milk in the tubular accumulation section, thus reducing waste, can also be reduced.

[0086] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A breast pump, characterized in that, The breast pump includes a flange component (10), a one-way valve component (20), and a diaphragm component (30); wherein, The flange component (10) includes a flange groove (11), and the lower sidewall of the flange groove (11) is provided with a flow hole (111). The one-way valve component (20) is disposed at the outlet of the milk flow hole (111) to control the one-way flow of breast milk; The diaphragm component (30) is disposed at the opening of the flange groove (11), and the central axis of the diaphragm component (30) is parallel to the central axis of the flange component (10).

2. The breast pump according to claim 1, characterized in that, The flange groove (11) is annular and is located at the end of the flange component (10), wherein the central axis of the flange groove (11) and the central axis of the diaphragm component (30) are coaxially arranged.

3. The breast pump according to claim 1, characterized in that, The central axis of the diaphragm component (30) and the central axis of the emulsion orifice (111) are arranged perpendicularly.

4. The breast pump according to claim 1, characterized in that, The breast pump also includes a milk bowl component (50), wherein a negative pressure hole (511) is formed inside the milk bowl component (50), and the diaphragm component (30) is disposed between the negative pressure hole (511) and the flange groove (11).

5. The breast pump according to claim 4, characterized in that, The negative pressure hole (511) is cylindrical, and the sidewall of the negative pressure hole (511) extends from the inner surface of the milk bowl component (50) along the central axis of the flange component (10) to the diaphragm component (30) to fit around the outer periphery of the diaphragm component (30), wherein the diaphragm component (30) seals the opening of the negative pressure hole (511).

6. The breast pump according to any one of claims 1-5, characterized in that, The one-way valve component (20) includes a plate valve having at least one notch.

7. The breast pump according to claim 6, characterized in that, The shape of the cut includes one or more of the following: straight, cross, and arc.

8. The breast pump according to any one of claims 1-5, characterized in that, The one-way valve component (20) includes a duckbill valve.

9. The breast pump according to claim 1, characterized in that, The flange component (10) further includes a flange body (12), which is funnel-shaped, wherein the inner side of the flange body (12) has a fitting surface (121) for fitting against the chest.

10. The breast pump according to claim 1, characterized in that, The breast pump also includes a storage device located at the outlet of the milk flow hole (111) for storing the extracted breast milk.

11. The breast pump according to claim 4, characterized in that, The breast pump also includes an adsorption device connected to the negative pressure hole (511) to provide a negative pressure environment within the negative pressure hole (511).

12. The breast pump according to claim 4, characterized in that, The breast pump also includes a main unit (40), which has a first through hole (41) inside. The bowl body (51) of the milk bowl component (50) is connected to the first through hole (41).

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