Breast sucking device

Abstract

The utility model relates to the technical field of mother and baby products, in particular to a breast pumping device which comprises a flange assembly and a main machine, and a breast pumping channel used for containing breasts is formed in the flange assembly; the main machine comprises a pump assembly. The flange assembly can be driven by the pump assembly to deform so as to change the shape and / or size of the breast pumping channel. Compared with the prior art, the pump assembly is used for controlling deformation of the flange assembly, so that the shape and / or the size of the breast pumping channel are / is controlled, and the breast pumping device can adapt to breasts of different sizes and shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of maternal and child products, in particular to a breast pump. BACKGROUND

[0002] With the progress of small household appliances technology, the emergence of breast pump can effectively suck out and store breast milk, and the baby can take it in time when needed, greatly liberating the life of lactating women.

[0003] The breast pump needs to be closely attached to the user's breast to effectively apply negative pressure to the user's breast for breast pumping operation, otherwise problems such as air leakage, milk leakage and milk accumulation may occur. Therefore, in order to adapt to different sizes of breasts, the currently common ones are usually provided with several flange assemblies of different specifications, and the user can replace the flange assembly to enable the breast to be closely attached to the breast pump. However, even for the same user, the size and shape of the breast at different periods are not completely the same, and the user must select and disassemble the flange assembly according to the actual situation when using the breast pump. CONTENT OF THE UTILITY MODEL

[0004] The present application mainly provides a breast pump that can improve the versatility of the breast pump.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a breast pump, comprising a flange assembly and a main machine. The flange assembly forms a breast pumping channel for accommodating the breast; the main machine comprises a pump assembly; the flange assembly can be deformed under the driving of the pump assembly to change the shape and / or size of the breast pumping channel.

[0006] In a specific embodiment, the flange assembly comprises an inflation member configured to be inflated towards the breast pumping channel under the operation of the pump assembly.

[0007] In a specific embodiment, the inflation member comprises an air bag, the pump assembly comprises a pump body, and the breast pump forms a first air path and a second air path. One end of the first air path is connected to the atmosphere, and the other end is connected to the air suction port of the pump body. One end of the second air path is connected to the air outlet of the pump body, and the other end is connected to the air bag.

[0008] In a specific embodiment, the breast pump further comprises a pressure sensor and a control module. The pressure sensor is used to obtain the pressure of the air bag, and the pressure sensor is arranged in the second air path, or the second air path is connected with a second branch, and the pressure sensor is arranged in the second branch. The pressure sensor is connected to the control module, and the control module is connected to the pump assembly.

[0009] In an embodiment, the pump assembly further comprises a negative pressure cavity connected to the first air path, the negative pressure cavity being connected to a suction port of the pump body, and the negative pressure cavity being configured to apply negative pressure to the breast pumping passage.

[0010] In an embodiment, the pump assembly further comprises a first valve body configured to control the air path among the negative pressure cavity, an air outlet of the pump body, and the atmosphere.

[0011] In an embodiment, the pump assembly further comprises a second valve body configured to control the air path among the air bag, the pump body, and the atmosphere.

[0012] In an embodiment, the breast pumping device further comprises a third air path, one end of the third air path being connected to the second air path, and the other end of the third air path being connected to the atmosphere, and the second valve body comprises a first sub-valve body arranged in the second air path and configured to control the air path between the air bag and the pump body, and a second sub-valve body arranged in the third air path and configured to control the air path in the third air path.

[0013] In an embodiment, the breast pumping passage comprises a nipple passage and a breast cavity, and the flange assembly further comprises a flange body, and the inflatable member is arranged at least on an inner wall of the flange body facing the nipple passage, and a radial dimension of the nipple passage decreases with an increase of a volume of the inflatable member.

[0014] In an embodiment, the flange assembly further comprises a flange soft body, and the inflatable member is arranged between the flange body and the flange soft body, and the flange soft body is detachably connected to the flange body, and the flange soft body has elasticity, and the flange soft body comprises a first limiting portion, and the flange body comprises a second limiting portion, and the first limiting portion and the second limiting portion are configured to detachably connect the flange soft body on a periphery of the inflatable member to the flange body.

[0015] The application has the following beneficial effects: Different from the prior art, the embodiment of the application is provided with a pump assembly connected to a flange assembly in a main machine, the pump assembly is configured to deform the flange assembly by pumping fluid, thereby changing a shape and / or size of a breast pumping passage, and the breast pumping passage is configured to fit different sizes, shapes, and sizes of breasts, and the breast pumping device is configured to adapt to different breasts without changing the flange assembly, thereby improving the universality of the breast pumping device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments 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 any creative effort based on these drawings.

[0017] Figure 1 is a structural schematic diagram of the breast pump from one angle of the present application;

[0018] Figure 2 is a structural schematic diagram of the breast pump from another angle of the present application;

[0019] Figure 3 is a schematic diagram of the gas path structure of the breast pump of the present application;

[0020] Figure 4 is a first cross-sectional structural schematic diagram of the breast pump of the present application;

[0021] Figure 5 is a cross-sectional structural schematic diagram of the breast pump of the present application when the expansion member is expanded;

[0022] Figure 6 is a third cross-sectional structural schematic diagram of the breast pump of the present application;

[0023] Figure 7 is a cross-sectional structural schematic diagram of the breast pump of the present application when the expansion member is contracted.

[0024] 1, breast pump; 2, flange assembly; 21, breast pumping channel; 211, nipple channel; 212, breast cavity; 22, expansion member; 221, air bag; 222, air chamber; 23, flange main body; 231, second limiting portion; 232, limiting flange; 24, flange soft body; 241, first limiting portion; 3, main machine; 31, docking groove; 32, pump assembly; 321, pump body; 322, negative pressure cavity; 322a, elastic film; 323, first valve body; 324, second sub-valve body; 325, first sub-valve body; 325a, first end; 325b, second end; 325c, third end; 33, battery; 34, control module; 41, first gas path; 42, first branch; 43, second gas path; 44, second branch; 45, third gas path; 5, pressure sensor; 6, annular bottom cover; 61, limiting groove. DETAILED DESCRIPTION

[0025] The application will be described in further detail below with reference to the drawings and embodiments. It is particularly pointed out that the following embodiments are only for illustration of the application and do not limit the scope of the application. Similarly, the following embodiments are only part of the embodiments of the application, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0026] The terms "first", "second", "third" in the present application are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0027] In this document, reference to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the described embodiments are merely examples from a whole class of comparable embodiments which those skilled in the art will readily synthesize without having the exercise of inventive faculty.

[0028] With the progress of small household appliance technology, the emergence of breast pumps can effectively suck and store breast milk, which can be used by babies in time, greatly liberating the life of lactating women.

[0029] The breast pump needs to be closely fitted with the user's breast, so as to effectively apply negative pressure to the user's breast to perform breast pumping operation, otherwise, air leakage, milk leakage, milk accumulation and other problems may occur. Therefore, in order to adapt to different sizes of breasts, the currently common ones are usually provided with a plurality of flange assemblies of different specifications, and the user can replace the flange assembly to enable the breast to be closely fitted with the breast pump.

[0030] But even the same user, the size and shape of the breast in different periods are not completely the same, the user in the use of breast pump, must be according to the actual situation to select and disassemble the flange assembly in line with the demand, most cases, this process is required to disassemble the flange assembly and try to compare, can finally determine the appropriate flange assembly. This leads to the disassembly of the flange assembly too much, easy to bring the equipment damage, fixed not strictly, leakage, leakage and other problems, for the service life and stability of the breast pump and flange assembly caused by adverse effects. And multiple flange assembly in the delivery of the user to save time is also easy to lose, damage.

[0031] In order to improve or solve the above technical problems, the inventors of the present application have long-term research, at least as follows.

[0032] Reference Figures 1-7 , Figure 1 is a structural diagram of the breast pump from one angle. Figure 2 is a structural diagram of the breast pump from another angle. Figure 3 is a schematic diagram of the gas path structure of the breast pump. Figure 4 is a first cross-sectional structural diagram of the breast pump. Figure 5 is a cross-sectional structural diagram of the breast pump when the expansion member is expanded. Figure 6 is a third cross-sectional structural diagram of the breast pump. Figure 7 is a cross-sectional structural diagram of the breast pump when the expansion member is contracted. In order to solve the above technical problems, the present application provides a breast pump 1 for connecting to the breast of the user to perform breast pumping operation.

[0033] The breast pump 1 can include a flange assembly 2 and a main machine 3. The flange assembly 2 is formed with a breast pumping channel 21 for accommodating the breast, and the main machine 3 includes a pump assembly 32. Among them, the flange assembly 2 can be deformed under the drive of the pump assembly 32, so as to change the shape and / or size of the breast pumping channel 21.

[0034] Optionally, the flange assembly 2 can be connected with the pump assembly 32, and the pump assembly 32 can provide the power required for the deformation of the flange assembly 2.

[0035] In the structure provided in the embodiment, by arranging the pump assembly 32 connected with the flange assembly 2 in the host 3, the flange assembly 2 can be deformed by pumping fluid, so that the shape and / or size of the breast pumping channel 21 can be changed, the breast pumping channel 21 can be fitted with breasts of different sizes, shapes and sizes, and the breast pumping device 1 can be adapted to different breasts without replacing the flange assembly 2, thereby improving the versatility of the breast pumping device 1. At the same time, since a large number of different types of flange assemblies 2 are not required, the design, mold opening and other costs of the manufacturer in producing the breast pumping device 1 are also reduced, and the flange assembly 2 is not prone to loss when delivered to the user.

[0036] In an embodiment of the present application, the flange assembly 2 can include an inflatable member 22. The volume of the inflatable member 22 is configured to be inflated into the breast pumping channel 21 under the action of the pump assembly 32.

[0037] Specifically, the inflatable member 22 can be connected with the pump assembly 32, and the pump assembly 32 can provide power for the inflation of the inflatable member 22.

[0038] Through the structure provided in the embodiment, the inflatable member 22 can be inflated into the breast pumping channel 21 by the pump assembly 32, so that the shape and radial size of the breast pumping channel 21 can be changed, the breast pumping channel 21 can be fitted with breasts of different sizes, shapes and sizes, and the breast pumping device 1 can be adapted to different breasts without replacing the flange assembly 2, thereby improving the versatility of the breast pumping device 1.

[0039] In an embodiment of the present application, the inflatable member 22 can include an air bag 221, the pump assembly 32 can include a pump body 321, and the breast pumping device 1 can form a first air path 41 and a second air path 43. One end of the first air path 41 is connected with the atmosphere, and the other end is connected with the air suction port of the pump body 321. One end of the second air path 43 is connected with the air outlet of the pump body 321, and the other end is connected with the air bag 221.

[0040] In the structure provided in the embodiment, the first air path 41 is used to deliver air to the pump body 321, and the pump body 321 delivers the air to the air bag 221 through the second air path 43, so that the air bag 221 can be inflated, the volume of the air bag 221 can be increased under the action of the inflation operation, and the inflatable member 22 can be inflated into the breast pumping channel 21, thereby changing the shape and radial size of the breast pumping channel 21.

[0041] Optionally, the breast pumping device 1 can be provided with an air chamber 222 connected with the air bag 221. When the pump body 321 inflates the air bag 221, the gas enters the air chamber 222, the volume of the air bag 221 increases, the inflatable member 22 is inflated into the breast pumping channel 21, and the shape and radial size of the breast pumping channel 21 are changed.

[0042] Optionally, the shape of the air bag 221 can be spherical, annular, or various shapes, so as to better adapt to the user's breast while reducing the discomfort experience brought to the user, and improve the usability of the breast pump device 1.

[0043] Optionally, the number of air bags 221 can be multiple, and the multiple air bags 221 are arranged in multiple layers along the breast pumping channel 21 from the outside to the inside. The pump assembly 32 can inflate the different air bags 221 to different degrees according to the needs, so as to adjust the position and intensity of the user's breast, and further improve the adaptation effect for different breasts. And by controlling the inflation and deflation of the air bags 221 at different positions, the user's breast can be pressed and massaged, which can promote lactation and improve the working efficiency of the breast pump device 1.

[0044] In a specific embodiment of the present application, the breast pump device 1 can further include a pressure sensor 5 and a control module 34. The pressure sensor 5 is used to obtain the pressure of the air bag. The pressure sensor 5 can be arranged on the second air path 43. The pressure sensor 5 is connected to the control module 34, and the control module 34 is connected to the pump assembly 32.

[0045] Optionally, the second air path 43 can be connected with a second branch 44, and the pressure sensor 5 can be arranged on the second branch 44. Specifically, the pressure sensor 5 can be arranged in the air chamber 222 of the air bag 221, so as to measure the air pressure inside the air bag 221.

[0046] Optionally, the breast pump device 1 can further include a battery 33, which is connected to the control module 34 and the pump assembly 32, and is used to supply power to the control module 34 and the pump assembly 32, so that the breast pump device 1 can work normally.

[0047] Through the structure provided in the embodiment, the second branch 44 where the pressure sensor 5 is located is in communication with the air bag 221, and the control module 34 can obtain the air pressure of the air bag 221 by using the pressure sensor 5, and then can calculate the inflation degree of the air bag 221. The control module 34 can control the pump assembly 32 to work according to the air pressure, effectively control the working condition of the pump assembly 32 by using the air pressure feedback mechanism, so that the air bag 221 can be inflated to a suitable shape and size according to the needs of the user, and the usability of the breast pump device 1 can be improved.

[0048] Optionally, the pressure sensor 5 can also be arranged on the side surface of the inflation member 22, such as the air bag 221, facing the inside of the breast pumping channel 21, so as to measure the pressure applied by the inflation member 22 to the user's breast through the inner wall of the breast pumping channel 21, and the position and intensity of the user's breast can be directly reflected.

[0049] Optionally, the control module 34 can specifically include a main board and control buttons, which can be arranged on the surface of the breast pump 1 away from the breast suction channel 21, so as to facilitate the user to control the pump assembly 32 to work through pressing, dialing, touching, and the like.

[0050] Further, the control module 34 can further include a voice recognition component and a voice recording component, so that the user can directly input a voice to the breast pump 1 without manually controlling, the voice recognition component recognizes the voice received by the voice recording component, and thus controls the pump assembly 32 according to the voice content.

[0051] Optionally, the control module 34 can further include a communication component, which can be connected with a server or a client by using wired and / or wireless communication means. The user can input an instruction to the communication component, or the server can send an instruction to the communication component, so that the control module 34 can control the pump assembly 32 according to the instruction.

[0052] In an embodiment of the present application, the pump assembly 32 can further include a negative pressure cavity 322 connected to the first gas path 41, the negative pressure cavity 322 being connected to the air inlet of the pump body 321, and the negative pressure cavity 322 being used to apply negative pressure to the breast suction channel 21. The pump body 321 can also suck fluid from the negative pressure cavity 322, so as to reduce the volume of the fluid in the negative pressure cavity 322, and the negative pressure cavity 322 is used to apply negative pressure to the breast suction channel 21, so as to achieve the effect of promoting the user's breast to secrete milk in the breast suction channel 21.

[0053] Specifically, the negative pressure cavity 322 can be isolated from the breast suction channel 21 by an elastic membrane 322a. When the volume of the fluid in the negative pressure cavity 322 is reduced, the air pressure in the breast suction channel 21 is greater than the air pressure in the negative pressure cavity 322. At this time, under the action of negative pressure, the elastic membrane 322a collapses to one side of the negative pressure cavity 322, so that the volume of the breast suction channel 21 becomes larger, and the air pressure in the breast suction channel 21 also becomes smaller until it is the same as the air pressure in the negative pressure cavity 322. At this time, the air pressure in the breast suction channel 21 is smaller than the outside, which can promote the user's breast to secrete milk, and realize the breast pumping process.

[0054] Further, the fluid sucked from the negative pressure cavity 322 by the pump body 321 can be directly discharged through the air outlet of the pump body 321, or can be input into the expansion member 22, so as to promote the expansion of the expansion member 22.

[0055] In an embodiment of the present application, the pump assembly 32 can further include a first valve body 323, which is used to control the opening and closing of the gas path among the negative pressure cavity 322, the air outlet of the pump body 321, and the atmosphere.

[0056] Specifically, the first valve body 323 can be arranged in the first air path 41, and the volume of the negative pressure cavity 322 is variable. The first air path 41 can be connected with a first branch 42, the first branch 42 is arranged between the first valve body 323 and the pump body 321, and the negative pressure cavity 322 is connected to the pump body 321 through the first branch 42. When the first valve body 323 is closed and the pump body 321 is working, the volume of the negative pressure cavity 322 is reduced and the volume of the breast suction channel 21 is increased.

[0057] Through the structure provided by the embodiment, in addition to the fact that the first valve body 323 is used to draw air from the outside to fill the expansion member 22, after the first valve body 323 is closed, the gas in the negative pressure cavity 322 can be input to the pump body 321 through the first branch 42, and then the gas is pumped to the expansion member 22, so that the volume of the fluid in the negative pressure cavity 322 is reduced, the expansion member 22 is expanded while the negative pressure cavity 322 applies negative pressure to the breast suction channel 21, the shape of the breast suction channel 21 is changed, the fitting effect is improved, and the effect of promoting the user's breast to lactate in the breast suction channel 21 is further improved.

[0058] In an embodiment of the present application, the pump assembly 32 can further include a second valve body for controlling the opening and closing of the air path among the air bag, the pump body and the atmosphere.

[0059] In an embodiment of the present application, the second valve body can include a second sub-valve body 324 and a first sub-valve body 325, and the breast pumping device 1 further includes a third air path 45. One end of the third air path 45 is connected to the atmosphere, and the other end is connected to the air outlet of the pump body 321. The second sub-valve body 324 is arranged in the third air path 45, and the first sub-valve body 325 is arranged in the second air path 43.

[0060] In the structure provided by the embodiment, when the second sub-valve body 324 is opened, the gas from the negative pressure cavity 322 can also be directly discharged through the third air path 45 after passing through the pump body 321, without entering the air bag 221. When the second sub-valve body 324 is closed and the first sub-valve body 325 is opened, the gas from the negative pressure cavity 322 can be used to expand the air bag 221, so that the expansion member 22 is expanded while the negative pressure cavity 322 applies negative pressure to the breast suction channel 21, the shape of the breast suction channel 21 is changed, the fitting effect is improved, and the effect of promoting the user's breast to lactate in the breast suction channel 21 is further improved.

[0061] Optionally, when a large pressure difference between the negative pressure cavity 322 and the atmosphere is required, a large amount of gas will be drawn out of the negative pressure cavity 322. However, due to the limited expansion space of the air bag 221, the air bag 221 with too large volume will also affect the fitting effect of the breast pumping device 1 and bring bad user experience. Therefore, a large amount of gas can be directly discharged to the outside through the third air path 45 and the second sub-valve body 324 by opening the second sub-valve body 324, without adversely affecting the shape of the breast suction channel 21.

[0062] Specifically, the first sub-valve body 325 may include a first end 325a, a second end 325b and a third end 325c. The first end 325a is connected to the atmosphere, the second end 325b is connected to the air outlet of the pump body 321, and the third end 325c is connected to the air bag 221. The second end 325b to the third end 325c is unidirectionally connected.

[0063] Therefore, gas from the negative pressure chamber 322 or the outside can only enter the airbag 221 or the second branch 44 through the second end 325b of the first sub-valve body 325. However, after the gas in the airbag 221 and the second branch 44 enters through the third end 325c of the first sub-valve body 325, it cannot be output from the second end 325b to the outlet of the pump body 321 in reverse. Instead, it can only be discharged to the outside from the first end 325a of the first sub-valve body 325.

[0064] With the structure provided in this embodiment, the inflation and deflation process of the airbag 221 can be effectively controlled by controlling the first sub-valve body 325, thereby allowing the shape and size of the breast pumping channel 21 to be adjusted according to needs, thus improving the usability of the suction device.

[0065] like Figure 3 As shown, when the user uses the breast pump 1, the first valve body 323, the second sub-valve body 324, the first sub-valve body 325, the pressure sensor 5, and the pump body 321 are all connected to the control module 34, and thus operate under the control of the control module 34. The workflow is as follows:

[0066] (1) The user connects the breast pumping channel 21 of the breast pumping device 1 to the breast, and then the first valve body 323 and the first sub-valve body 325 are opened while the second sub-valve body 324 is kept closed.

[0067] (2) The control module 34 controls the pump body 321 to draw in gas from the outside through the first air passage 41, and inputs it into the airbag 221 from the second end 325b of the first sub-valve body 325 through the second air passage 43, thereby adjusting the shape and size of the breast pumping channel 21. During the adjustment process, if too much gas is injected into the airbag 221, for example, if the pressure sensor 5 in the second branch 44 detects that the pressure is too high, the first sub-valve body 325 can be controlled to open, so that some of the gas in the airbag 221 can be discharged to the outside through the first end 325a of the first sub-valve body 325.

[0068] (3) After the adaptation process of the breast pumping channel 21 is completed, the first valve body 323 and the first sub-valve body 325 are closed, and the second sub-valve body 324 is opened. Then, the control module 34 controls the pump body 321 to draw in the gas in the negative pressure chamber 322 through the first branch 42, and discharges this gas to the outside through the third air passage, so as to apply negative pressure to the breast pumping channel 21, thereby enabling the breast pumping process to begin.

[0069] (4) After the breast pumping process is completed, the first valve body 323 is opened, and the gas in the outside world naturally enters the first branch 42 through the first gas path 41, so that the negative pressure cavity 322 returns to normal pressure, and then the breast pumping passage 21 returns to normal pressure. At the same time, the first sub-valve body 325 is opened, so that the gas in the air bag 221 can be discharged to the outside through the first end 325a, so that the size and contour shape of the breast pumping passage 21 return to the initial state.

[0070] (5) The user withdraws the breast from the breast pumping passage 21, and the whole breast pumping process is completed.

[0071] Among them, the first valve body 323 can be a normally open electromagnetic valve, and the second sub-valve body 324 can be a normally closed electromagnetic valve.

[0072] In a specific embodiment of the present application, the breast pumping passage 21 can specifically include a nipple passage 211 and a breast cavity 212, and the flange assembly 2 further includes a flange body 23. The inflatable member 22 is arranged at least on the inner wall of the flange body 23 facing the nipple passage 211. The radial dimension of the nipple passage 211 can be reduced as the volume of the inflatable member 22 increases.

[0073] Among them, the flange body 23 can be made of hard material, such as hard plastic, alloy, etc., to improve the structural stability of the flange body 23 and reduce the probability of deformation.

[0074] Optionally, when the air bag 221 is not filled with gas, the air bag 221 is in a natural compression state. At this time, the diameter of the nipple passage 211 can be 24-30 mm. When the air bag 221 is inflated to the maximum limit, the diameter of the nipple passage 211 can be 11-15 mm.

[0075] For users, the differentiation between the breasts will be clearly manifested in the nipple part, and the nipple part is also the key lactation part. Therefore, the inflatable member 22 can be arranged at least on the inner wall of the flange body 23 facing the nipple passage 211. Since the flange body 23 is made of hard material, when the volume of the inflatable member 22 changes, the inflatable member 22 is inflated inwardly under the pressure of the flange body 23, so that the shape and size of the nipple passage 211 can be changed according to the requirements, and the nipple can be stably positioned, thereby improving the fitting effect of the breast pumping device 1.

[0076] Further, based on the scheme of multiple air bags 221, the pump assembly 32 can inflate different air bags 221 to different degrees according to requirements, so as to adjust the position and force of pressing the user's nipple, simulate the action of natural infant sucking, press and massage the user's breast, promote lactation, and improve the working efficiency of the breast pumping device 1.

[0077] In an embodiment of the present application, the flange assembly 2 can further include a flange soft body 24, the expansion member 22 is arranged between the flange main body 23 and the flange soft body 24, and the flange soft body 24 is detachably connected with the flange main body 23.

[0078] The flange soft body 24 can have elasticity. Specifically, the flange soft body 24 can include a first limiting portion 241, and the flange main body 23 includes a second limiting portion 231, the first limiting portion 241 and the second limiting portion 231 are arranged adjacent to the expansion member 22, and are used to detachably connect the flange soft body 24 on the side of the expansion member 22 with the flange main body 23.

[0079] Specifically, the flange soft body 24 can be arranged on the side of the flange main body 23 facing the breast pumping passage 21, and the nipple passage 211 and the breast cavity 212 can be formed on the side of the flange soft body 24 away from the flange main body 23.

[0080] By arranging the flange soft body 24 at the position contacting the user's breast, it can be slightly deformed when contacting the user's skin, thereby improving the fitting effect. Under the action of the first limiting portion 241 and the second limiting portion 231, when the expansion member 22 expands, the flange soft body 24 will not be displaced, but will be lifted by the expansion member 22 to be elastically deformed, thereby changing the shape and size of the breast pumping passage 21, and also maintaining the integrity of the inner wall of the breast pumping passage 21, thereby reducing the probability of milk leakage, air leakage, residual milk and other problems. At the same time, the flange soft body 24 is detachably mounted with the flange main body 23, and before and after the breast pumping operation, the user can detach the flange soft body 24 for washing and / or disinfection, so as to maintain hygiene and reduce the probability of microbial and dust pollution.

[0081] Optionally, referring to Figure 4 The host 3 can be provided with a docking groove 31, and when the flange assembly 2 is assembled with the host 3, part of the docking groove 31 can cooperate with the flange main body 23 to form a milk storage cavity, and the milk entering the breast pumping device 1 through the breast pumping passage 21 can be stored in the milk storage cavity. Another part of the docking groove 31 can communicate with the air chamber 222, and part of the second air path 43 is directly formed in the docking groove 31.

[0082] Optionally, the breast pumping device 1 can further include a ring-shaped bottom cover 6, the ring-shaped bottom cover 6 is arranged at the opening of the docking groove 31 formed by the host 3, and the ring-shaped bottom cover 6 is detachably fixed with the host 3. The side surface of the flange assembly 2 facing the docking groove 31 is provided with a limiting flange 232, and the side of the ring-shaped bottom cover 6 facing the host 3 is provided with a limiting groove 61. The limiting flange 232 and the limiting groove 61 are connected and matched to limit the flange assembly 2.

[0083] Due to the existence of the limiting flange 232 and the limiting groove 61, the installation mode and direction of the flange assembly 2 and the main machine 3 are limited, and the limiting flange 232 and the limiting groove 61 can prevent the flange assembly 2 from being installed in the wrong way and limit the flange assembly 2.

[0084] The above only describes some embodiments of the present application, and does not limit the protection scope of the present application, and any equivalent device or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A breast pump, characterized in that The breast pump device comprises: a flange assembly (2) formed with a breast milk suction passage (21) for accommodating a breast; a main body (3) comprising a pump assembly (32); the flange assembly (2) is capable of deforming under the driving of the pump assembly (32) to change the shape and / or size of the breast milk suction passage (21).

2. The breast pump device according to claim 1, wherein the flange assembly (2) comprises an inflatable member (22) configured to be inflated towards the breast milk suction passage (21) under the operation of the pump assembly (32).

3. The breast pump device according to claim 2, wherein the inflatable member (22) comprises an air bag (221), the pump assembly (32) comprises a pump body (321), and a first air path (41) and a second air path (43) are formed in the breast pump device (1), one end of the first air path (41) is connected to the atmosphere, the other end is connected to a suction port of the pump body (321), one end of the second air path (43) is connected to an air outlet of the pump body (321), the other end is connected to the air bag (221).

4. The breast pump device according to claim 3, wherein the breast pump device (1) further comprises a pressure sensor (5) and a control module (34), the pressure sensor (5) is used to acquire the pressure of the air bag (221), and the pressure sensor (5) is arranged on the second air path (43), or a second branch (44) is connected to the second air path (43), and the pressure sensor (5) is arranged on the second branch (44); the pressure sensor (5) is connected to the control module (34), and the control module (34) is connected to the pump assembly (32).

5. The breast pump device according to claim 3, wherein the breast pump device (1) further comprises a negative pressure cavity (322) connected to the first air path (41), the negative pressure cavity (322) is connected to the suction port of the pump body (321), and the negative pressure cavity (322) is used to apply negative pressure to the breast milk suction passage (21).

6. The breast pump device according to claim 5, wherein the pump assembly (32) further comprises a first valve body (323) for controlling the opening and closing of the air path among the negative pressure cavity (322), the air outlet of the pump body (321) and the atmosphere.

7. The breast pump device according to claim 5, wherein the pump assembly (32) further comprises a second valve body for controlling the opening and closing of the air path among the air bag (221), the pump body (321) and the atmosphere.

8. The breast pump device according to claim 7, wherein The breast pump device (1) is further provided with a third air path (45), one end of the third air path (45) is connected to the second air path (43), the other end is communicated with the atmosphere, the second valve body includes a first sub-valve body (325) arranged in the second air path (43) for controlling the air path between the air bag (221) and the pump body (321) to be opened or closed, and a second sub-valve body (324) arranged in the third air path (45) for controlling the air path in the third air path (45) to be opened or closed.

9. The breast pump device according to claim 2, wherein, The breast passage (21) includes a nipple passage (211) and a breast cavity (212), the flange assembly (2) further includes a flange main body (23), the inflatable member (22) is arranged at least on the inner wall of the flange main body (23) towards the nipple passage (211), and the radial dimension of the nipple passage (211) is reduced with the increase of the volume of the inflatable member (22).

10. The breast pump device according to claim 9, wherein, The flange assembly (2) further includes a flange soft body (24), the inflatable member (22) is arranged between the flange main body (23) and the flange soft body (24), and the flange soft body (24) is detachably connected with the flange main body (23); The flange soft body (24) has elasticity, the flange soft body (24) includes a first limiting portion (241), the flange main body (23) includes a second limiting portion (231), and the first limiting portion (241) and the second limiting portion (231) are used for detachably connecting the flange soft body (24) on the circumference of the inflatable member (22) with the flange main body (23).

Images