Wearable breast pump convenient for suction and suction method

Abstract

The present invention relates to the technical field of maternal and infant feeding, and specifically to a wearable breast pump and adsorption method that facilitates adsorption, comprising a main body shell and a suction cup component, wherein the main body shell has a negative pressure chamber and a milk storage chamber, respectively, and the suction cup component has a milk suction channel. The suction cup component is detachably mounted on the main body shell, and the suction cup component has an adsorption cavity. The main body shell includes a suction device and a suction pipeline structure, and the suction device is connected to the adsorption cavity and the negative pressure chamber. The present invention attaches the suction cup component to the surface of the skin of the body, and the air in the adsorption cavity is pre-extracted by the suction device to form an adsorption effect, thereby achieving an adsorption effect. After the adsorption is stable, the air in the negative pressure chamber is again extracted by the suction device to form a milk suction effect, thereby avoiding the situation of easy falling or loosening during initial use. There is no need to simultaneously suck all spaces, which greatly reduces the time required for stable adsorption in the initial stage of adsorption, reduces the chance of loosening and falling, provides users with a good adsorption effect experience, and is convenient for users to use.

Description

Technical Field

[0001] The present invention relates to the technical field of maternal and infant feeding, in particular to a wearable breast pump and a breast pumping method for facilitating suction. Background Art

[0002] Breast pumps are common maternal and infant products. Breast pumps on the market can generally be divided into integrated breast pumps, split breast pumps and wearable breast pumps. Among them, wearable breast pumps have the advantages of being easy to carry and store, freeing the user's hands without the need for hand support, and being easy to use, and are therefore popular among users.

[0003] However, existing wearable breast pumps are inconvenient to use. The user needs to support the breast pump with their hands on the breast skin and wait for it to be activated before releasing their hands. Since the wearable breast pump needs to provide suction and milk extraction effects at the same time, the air pump may not be able to completely suck out all the air in the space and achieve a certain negative pressure state in a short period of time. The breast pump is prone to loosening and falling during the initial suction stage and when the user moves, which is inconvenient for the user to use.

[0004] In view of the above shortcomings, we need to develop a wearable breast pump that is easy to adsorb and an adsorption method to meet the needs of the majority of users. Summary of the Invention

[0005] In view of the above-mentioned problems that existing breast pumps are prone to loosening and falling in the initial stage of suction and are difficult to completely suck out all the air in a short time, the present invention solves the technical problems by adopting the following technical solutions:

[0006] A wearable breast pump that facilitates suction comprises a main body shell and a suction cup member, wherein the main body shell respectively comprises a negative pressure chamber and a milk storage chamber, and the suction cup member comprises a milk suction channel respectively connected to the outside world and the milk storage chamber, and the suction cup member is detachably mounted on the main body shell, and the suction cup member comprises a suction cavity on a side for contacting the user's skin, and the main body shell comprises a suction device and a suction pipeline structure for sucking internal air to form negative pressure, and the suction device respectively connects the suction cavity and the negative pressure chamber.

[0007] As described above, in a wearable breast pump that facilitates suction, the suction device is connected to the suction cup through a first suction channel, the suction device is connected to the negative pressure chamber through a second suction channel, and the first suction channel is connected to the suction cavity through a third suction channel.

[0008] The wearable breast pump for easy suction as described above has a first elastic suction portion and a second elastic suction portion on a side of the milk suction channel for contacting the user's skin, respectively. The first elastic suction portion opens from the milk suction channel toward the outside, and has a flexible suction curved surface for contacting the user's skin. The flexible suction curved surface smoothly intersects and connects with the milk suction channel. The second elastic suction portion extends from the inner wall of the milk suction channel toward the direction of communication with the outside and opens toward the outer diameter of the first elastic suction portion. The second elastic suction portion has a flexible sealing curved surface for elastically contacting the user's skin.

[0009] In the wearable breast pump that facilitates suction as described above, the suction device includes an air pump and a control unit. The suction pipeline structure includes a first solenoid valve, a second solenoid valve, and an air tube for controlling air communication. The control unit includes a negative pressure sensor for detecting the internal air pressure state. The control unit is electrically connected to the air pump, the first solenoid valve, and the second solenoid valve, respectively.

[0010] In the wearable breast pump that facilitates suction as described above, the suction device and the suction pipeline structure are installed in the accommodating space of the main body shell, the accommodating space is a closed space, the accommodating space is connected to the suction cavity through the first suction channel, and the accommodating space is connected to the negative pressure chamber through the second suction channel. The first solenoid valve is installed at the suction end of the air pump, and the second solenoid valve is installed on the air path connection between the air pump and the second suction channel.

[0011] In the wearable breast pump that facilitates suction as described above, the first solenoid valve is installed on the air path connection between the air pump and the first suction channel, and the second solenoid valve is installed on the air path connection between the air pump and the second suction channel.

[0012] In the wearable breast pump that facilitates suction as described above, the suction device further includes a negative pressure tank for assisting suction, the negative pressure tank being connected to the first suction channel and / or the second suction channel via an air tube, the first solenoid valve being installed on the air connection between the air pump and the negative pressure tank, and the second solenoid valve being installed on the air connection between the air pump and the second suction channel.

[0013] As described above, the wearable breast pump that facilitates suction, the suction pipeline structure includes a shunt tube installed on the air pump, the first shunt port a of the shunt tube is connected to the negative pressure tank, the second shunt port b of the shunt tube is connected to the first suction channel via the trachea, the third shunt port c of the shunt tube is connected to the air extraction end of the air pump via the trachea, and the fourth shunt port d of the shunt tube is connected to the negative pressure sensor via the trachea.

[0014] As described above, in a wearable breast pump that facilitates suction, the suction cup member has a buckling portion for buckling with the main body housing, and the buckling portion extends outward from a position close to the milk storage chamber to form a release handle for easy disassembly and opening. The surface of the release handle has anti-slip grooves, and a plurality of the anti-slip grooves are arranged at intervals from a position of the release handle close to the buckling portion toward a direction away from the buckling portion.

[0015] In the wearable breast pump that facilitates suction as described above, the milk suction channel is provided with an elastic deformation portion near the negative pressure chamber for facilitating negative pressure suction. A sealed negative pressure chamber is formed between the elastic deformation portion and the main body shell. The elastic deformation portion has a concave and / or convex structure alternately arranged from the outside to the inside to form a concave-convex corrugated thin-walled curved surface structure.

[0016] A breast pump adsorption method, applied to the wearable breast pump,

[0017] The breast pump adsorption method comprises:

[0018] The suction cup is attached to the user's breast skin so that the nipple extends into the milk suction channel and the suction cavity forms a closed space;

[0019] Use a suction device to extract the air from the adsorption cavity, so that the adsorption cavity forms a negative pressure state to achieve the adsorption effect;

[0020] A suction device is used to extract air from the negative pressure chamber, so that the negative pressure chamber forms a negative pressure state, which drives the suction cup to perform suction on the user's breast to achieve a milk suction effect.

[0021] A breast pump suction method as described above, wherein the suction device includes an air pump, and the suction pipeline structure includes a first solenoid valve and a second solenoid valve for controlling air communication;

[0022] The breast pump adsorption method comprises:

[0023] Using a first solenoid valve to control the air connection between the air pump and the first suction channel;

[0024] Using a second solenoid valve to control the air connection between the air pump and the second suction channel;

[0025] The air in the adsorption cavity is extracted before the air pump is started, so that the adsorption cavity forms a negative pressure state to achieve the adsorption effect.

[0026] The beneficial effects of the present invention are as follows:

[0027] The present invention includes a suction cup member for attaching to the skin and a main body shell for mounting the suction cup member. The main body shell and the suction cup member enclose a negative pressure chamber for facilitating suction and a milk storage chamber for storing lotion. The suction cup member has a milk suction channel for allowing lotion to flow into the milk storage chamber. When in use, the user attaches the suction cup member to the surface of the skin of the body, and the suction device pre-extracts air from the suction cavity to form an adsorption effect, thereby achieving a stable adsorption effect before milk suction. After the adsorption is stable, the suction device further extracts air from the negative pressure chamber to achieve a stable milk suction effect after adsorption. The adsorption cavity and the negative pressure chamber are separated by the suction cup member to form independent air cavity areas, which is convenient for the user to first stabilize adsorption before trying to suck milk during use, thereby avoiding the problem of easy falling off or loosening during initial use. The suction device is respectively connected to the adsorption cavity and the negative pressure chamber, and can first extract air from the adsorption cavity separately to implement the pre-adsorption effect without having to suck all the space at the same time. This greatly reduces the time required for stable adsorption in the initial stage of adsorption, reduces the chance of loosening and falling, provides the user with a good adsorption effect experience, and is convenient for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional diagram of a wearable breast pump that facilitates suction according to the present invention.

[0029] Figure 2 This is a front view of a wearable breast pump that facilitates suction according to the present invention.

[0030] Figure 3 for Figure 2 AA cut view of the .

[0031] Figure 4 This is a schematic diagram of the structure of Example 1 of the present invention ( Figure 3 C-direction view).

[0032] Figure 5 for Figure 3 B is an enlarged view of .

[0033] Figure 6 This is a schematic diagram of the structure of Example 2 of the present invention ( Figure 3 C-direction view).

[0034] Figure 7 This is a structural diagram of Example 3 of the present invention (an enlarged view of the local structure).

[0035] Figure 8 Schematic diagram of the internal structure of the wearable breast pump of the present invention. DETAILED DESCRIPTION

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] Example 1:

[0041] like Figures 1 to 5 The wearable breast pump shown here comprises a main body housing 1 and a suction cup 2. The main body housing 1 has a negative pressure chamber 12 and a milk storage chamber 13 respectively. The suction cup 2 has a milk suction channel 24 that connects to the outside and the milk storage chamber 13 respectively. The suction cup 2 is detachably mounted on the main body housing 1. The suction cup 2 has a suction cavity 23 on one side for contacting the user's skin. The main body housing 1 includes a suction device 3 and a suction pipeline structure 4 for sucking internal air to form a negative pressure. The suction device 3 connects the suction cavity 23 and the negative pressure chamber 12 respectively.

[0042] More specifically, the main body shell 1 is the device shell of the breast pump, which can be used to install components and store milk. The suction cup 2 is the suction cup structure of the breast pump, which can be used to fit the user's breast skin for the breast pump to perform the suction and milk suction functions. The suction cup 2 is installed on the main body shell 1 to form a negative pressure chamber 12 and a milk storage chamber 13 that are independently separated from each other.

[0043] Among them, the main body shell 1 has an accommodating space 11 for installing the suction device 3 and the suction pipeline structure 4. The user can operate the breast pump to start or stop the suction device 3. After the suction device 3 is connected to the adsorption cavity 23, the air in the adsorption cavity 23 is extracted to form a negative pressure state between the suction cup 2 and the user's skin to implement adsorption, thereby realizing the adsorption function; after the suction device 3 is connected to the negative pressure cavity 12, the air in the negative pressure cavity 12 is sucked to deform the suction cup 2 and implement suction on the user's breast to realize the milk suction function; under the suction action, the milk flows from the milk suction channel 24 into the milk storage cavity 13 for storage. After the suction is completed, the suction cup 2 can be opened to take out the milk from the milk storage cavity 13 to realize the milk storage function.

[0044] The working principle and implementation method of this embodiment are as follows:

[0045] During adsorption, the user brings the suction cup 2 close to the breast skin and fits it against the skin, so that the nipple extends into the milk suction channel 24. The suction cup 2 fits against the skin to form a closed space in the adsorption cavity 23. After the user turns on the suction device 3, the suction device 3 extracts the air in the adsorption cavity 23 through the suction pipeline structure 4 and forms a negative pressure state. Under the negative pressure state, the suction cup 2 can achieve a stable adsorption effect, avoiding the situation of falling off easily in the early stage of adsorption.

[0046] When sucking milk, the user operates the breast pump to increase the suction force of the suction device 3. The suction device 3 extracts the air from the negative pressure chamber 12 through the suction pipe structure 4, so that the negative pressure chamber 12 forms a negative pressure state. Under the negative pressure state, the suction cup 2 can achieve a suction effect with a certain frequency or frequency, so that the milk flows from the breast through the nipple into the milk suction channel 24, and finally into the milk storage chamber 13 for storage. After the suction is completed, the user disassembles and opens the suction cup 2 to take out the milk from the milk storage chamber 13, thereby realizing the milk storage function.

[0047] Furthermore, in some optional embodiments, the suction cup member 2 can be made of soft materials such as silicone, rubber, and plastic. Preferably, the suction cup member 2 is made of silicone material so that it can fit the user's body skin more easily. The breast shield is made of silicone material with good softness, elasticity and durability. The softness of the silicone material can fit the shape of the breast, reduce the pressure on the breast, and improve the user's comfort. The elasticity of the silicone material can be appropriately adjusted according to the size of the breast to ensure a good sealing effect for effective collection of milk. Silicone is a non-toxic material that will not chemically react with breast milk, is easy to clean, can be sterilized at high temperature, and can withstand multiple washings and reuse without being easily damaged.

[0048] Furthermore, in some optional embodiments, the milk suction channel 24 has an inlet end 241 for communicating with the outside world and a valve end 242 for communicating with the milk storage chamber 13. The milk suction channel 24 is provided with a first elastic adsorption portion 21 for fitting the user's skin at a position near the inlet end 241 for communicating with the outside world. The first elastic adsorption portion 21 opens toward the outside world from the inlet end 241. The first elastic adsorption portion 21 has a flexible adsorption curved surface for fitting the user's skin, and the flexible adsorption curved surface smoothly intersects and connects with the milk suction channel 24.

[0049] Furthermore, in some optional embodiments, a hollow through-hole second elastic adsorption portion 22 extends from the inner wall of the milk suction channel 24 toward the inlet end 241. The second elastic adsorption portion 22 opens toward the outer diameter direction of the first elastic adsorption portion 21. The second elastic adsorption portion 22 has a flexible sealing surface for elastically pressing against the user's skin. The second elastic adsorption portion 22 is located between the inlet end 241 and the valve port end 242. An adsorption cavity 23 is provided between the first elastic adsorption portion 21 and the second elastic adsorption portion 22. The adsorption cavity 23 is connected to the outside world through the inlet end 241.

[0050] Furthermore, in some optional embodiments, the valve port 242 of the milk suction channel 24 for connecting to the milk storage chamber 13 has a one-way valve mouth 243 for preventing backflow. The one-way valve mouth 243 can adopt a duckbill valve structure. After the liquid flows from the milk suction channel 24 through the one-way valve mouth 243 into the milk storage chamber 13, the one-way valve mouth 243 prevents backflow.

[0051] Furthermore, in some optional embodiments, an elastic deformation portion 6 is provided on the side of the milk suction channel 24 away from the inlet end 241 to facilitate negative pressure suction, and the negative pressure chamber 12 is located in the closed space between the elastic deformation portion 6 and the main body shell 1.

[0052] Furthermore, in some optional embodiments, the main housing 1 includes a suction device 3 and a suction pipe structure 4 for sucking internal air to form negative pressure. The main housing 1 has an installation shell for limiting the installation position of the suction device 3 and the suction pipe structure 4. The suction device 3 and the suction pipe structure 4 are integrally installed in the accommodating space 11 formed by the main housing 1 and the suction cup member 2.

[0053] Furthermore, in some optional embodiments, the main housing 1 has a first suction channel 101 for connecting to the adsorption cavity 23 and a second suction channel 102 for connecting to the negative pressure chamber 12. The first suction channel 101 is located at a position of the main housing 1 close to the inlet end 241, and the second suction channel 102 is located at a position of the main housing 1 away from the inlet end 241. The suction cup member 2 is provided with a third suction channel 103 between the first suction channel 101 and the adsorption cavity 23 for connecting the two.

[0054] Furthermore, in some optional embodiments, the suction device 3 includes an air pump 31 for extracting air, a power supply 35 for powering the breast pump, and a control unit 32 for controlling the suction device 3. The control unit 32 is an electronic device that facilitates the user to operate the breast pump. The control unit 32 includes a circuit module, an output and input module, a calculation module, and a user interaction module. The user interaction module has functional modules and function buttons that facilitate the user to control the start and stop, timing, power adjustment, and prompt sound adjustment of the breast pump.

[0055] Furthermore, in some optional embodiments, the suction pipeline structure 4 includes an air pipe 43 for air circuit connection and a solenoid valve group 412 for controlling the on and off of the air circuit. The solenoid valve group 412 includes a first solenoid valve 41 and a second solenoid valve 42. The first solenoid valve 41 is installed on the air circuit connection between the air pump 31 and the first suction channel 101, and the second solenoid valve 42 is installed on the air circuit connection between the air pump 31 and the second suction channel 102. The control unit 32 is electrically connected to the air pump 31, the first solenoid valve 41 and the second solenoid valve 42, respectively. The control unit 32 includes a negative pressure sensor 33 for detecting air pressure. The negative pressure sensor 33 is connected to the air circuit connection between the air pump 31 and the first suction channel 101.

[0056] Furthermore, in some optional embodiments, the suction pipeline structure 4 includes a diverter pipe 44 installed on the air pump 31. The diverter pipe 44 can be a three-way pipe or a four-way pipe. The diverter pipe 44 of this embodiment preferably adopts a three-way pipe. The second diverter port b of the diverter pipe 44 is connected to the first suction channel 101 through the air pipe 43, the third diverter port c of the diverter pipe 44 is connected to the air pump 31 through the air pipe 43, and the fourth diverter port d of the diverter pipe 44 is connected to the negative pressure sensor 33 through the air pipe 43.

[0057] Furthermore, in some optional embodiments, the suction cup member 2 has an annular buckling portion 25 for buckling and mounting on the main housing 1, and the annular buckling portion 25 extends toward the outside from a position close to the milk storage chamber 13 to facilitate disassembly and opening. The surface of the loosening handle 5 has an anti-slip pattern 51 in the form of a long strip, and several anti-slip patterns 51 are arranged at intervals from the position of the loosening handle 5 close to the annular buckling portion 25 toward a direction away from the annular buckling portion 25. The anti-slip patterns 51 are respectively arranged on the front side e of the loosening handle 5 close to the inlet end 241 and the back side f close to the outlet end. The loosening handle 5 adopts a semicircular or semi-elliptical thin-walled structure.

[0058] Furthermore, in some optional embodiments, the elastic deformation portion 6 adopts a suction bowl structure, and the elastic deformation portion 6 extends from the inner wall of the milk suction channel 24 toward the center of the channel to form a closed thin-walled curved surface structure, blocking the negative pressure chamber 12 and the milk suction channel 24 so that the two are not connected. The elastic deformation portion 6 has a concave structure and / or a convex structure alternately arranged from the outside to the inside, forming a corrugated curved surface profile that is reciprocating concave and convex along the axial direction. More specifically, the elastic deformation portion 6 has a first concave portion j, a second convex portion k, a third concave portion m, a fourth convex portion n and a fifth central concave bowl i that are connected in sequence from the inner wall of the milk suction channel 24 toward the center of the channel. The concave and convex corrugated structural design can enhance the flexible deformation of the elastic deformation portion 6, reduce the negative pressure force required for elastic deformation, and improve the range and amplitude of elastic deformation, which can better assist in sucking milk and facilitate user use.

[0059] Furthermore, in some optional embodiments, the second elastic adsorption portion 22 has a reinforcing rib 221 near the adsorption cavity 23 for reducing the degree of compression and expansion deformation of the second elastic adsorption portion 22. A plurality of reinforcing ribs 221 are arranged at intervals around the circumference of the rotation axis of the second elastic adsorption portion 22. The reinforcing ribs 221 extend from the position of the second elastic adsorption portion 22 near the center of the milk suction channel 24 toward the direction away from the center of the milk suction channel 24. The reinforcing ribs 221 can adopt a straight extension structure or a curved extension structure. The reinforcing ribs 221 of this embodiment are preferably Using a straight line extending structure from the inside to the outside, when the flexible sealing surface of the second elastic adsorption part 22 is in contact with the user's skin, the force generated by the contact presses the second elastic adsorption part 22 and causes the second elastic adsorption part 22 to expand and deform toward the first elastic adsorption part 21. The reinforcing ribs 221 generate a tightening force pulling in the opposite direction to resist the expansion deformation, so that the flexible sealing surface of the second elastic adsorption part 22 is more stably in contact with the user's skin, ensuring the contact stability and sealing stability of the second elastic adsorption part 22, which is conducive to the smooth subsequent suction of lotion.

[0060] More specifically, the raised and spaced reinforcing ribs 221 can also prevent the second elastic adsorption portion 22 from being pressed and contacting the first elastic adsorption portion 21 during adhesion and adsorption, causing the second elastic adsorption portion 22 to block the first suction channel 101 or the third suction channel 103, thereby ensuring that the air path for adsorption and suction is unobstructed.

[0061] Furthermore, in some optional embodiments, the host shell 1 of this embodiment adopts a split structure, and the host shell 1 includes a host part and a shell part that are independent of each other. The host part is separated from the host shell 1 to form an independent assembly component. The host part and the shell part can be assembled or separated through detachable installation using one of the detachable connection structures such as plug-in connection, slot connection, and snap connection. Among them, the host part includes a suction device 3 and a suction pipeline structure 4, and the host part has a host detachable shell for installing the suction device 3 and the suction pipeline structure 4. The shell part includes a negative pressure chamber 12, a milk storage chamber 13 and an installation shell. The split structure design can facilitate the host part to replace the installation shells with different milk storage capacities, and can also facilitate the shell part to replace the suction devices 3 with different suction power, enriching the application variations of the breast pump, improving the detachable adaptability of the breast pump, and facilitating user selection and use.

[0062] Furthermore, in some optional embodiments, the suction device 3 of this embodiment may also eliminate the power supply 35 installed on the main body housing 1, and the suction device 3 may be directly connected to an external power supply device or the power supply 35, i.e., an independent battery, an independent generator or AC power, through a power supply line.

[0063] Furthermore, in some optional embodiments, the host housing 1 of this embodiment can replace the user interaction module (or button) of the control unit 32 for user operation with an induction switch. The sensing end of the induction switch is located near the surface of the host housing 1, and the induction switch is electrically connected to the control unit 32. Several induction switches are respectively set at the positions of different operation buttons (such as the button position originally used for starting or shutting down, the button position originally used for adjusting the power, the button position originally used for using the adsorption effect, the button position originally used for using the milk suction effect, etc.). When the user's finger or skin touches the induction trigger position of the corresponding function, the induction switch can transmit the open or close signal to the control unit 32, avoiding the inconvenience of using the traditional push-button switch, and avoiding the discomfort caused by applying pressure on the skin using the push-button switch, so that the corresponding function can be operated by lightly touching the surface of the host housing 1, which is convenient for users to use.

[0064] Furthermore, in some optional embodiments, the first elastic adsorption portion 21, the second elastic adsorption portion 22, the one-way valve nozzle 243, the release handle 5 and the elastic deformation portion 6 of this embodiment are combined in an integrated manner to form a suction cup component 2. The suction cup component 2 can be disassembled and used as a whole, which simplifies the number of components and avoids the phenomenon of individual components being lost when the user disassembles. The integrated structure has better strength and does not require the user to disassemble and clean and then reinstall the scattered components, which facilitates production installation and use disassembly.

[0065] Furthermore, in some optional embodiments, such as Figure 3 and Figure 5As shown, the channel direction of the first suction channel 101 of this embodiment is toward the central axis of the milk suction channel 24. The first suction channel 101 is close to a position where the adsorption cavity 23 has a larger space, thereby improving the adsorption efficiency.

[0066] Furthermore, in some optional embodiments, such as Figure 8 As shown, the channel direction of the first suction channel 101 of this embodiment is toward the inlet end 241, and the first elastic adsorption part 21 has a ventilation extension groove for the first suction channel 101 to connect with the outside world. The ventilation extension groove can prevent the second elastic adsorption part 22 from blocking the first suction channel 101 when it is pressed into contact with the first elastic adsorption part 21, thereby ensuring that the air path for adsorption and suction is unobstructed.

[0067] Example 2

[0068] like Figure 1-3 as well as Figure 6 The wearable breast pump shown is easy to suck, and the suction device 3 of the breast pump also includes a negative pressure tank 34 for assisting suction. The negative pressure tank 34 is connected to the first suction channel 101 and the air pump 31 through the air pipe 43. The negative pressure tank 34 is a hollow sealed tank body installed between the air pump 31 and the first suction channel 101. Before use, the air inside the negative pressure tank 34 can be evacuated in advance to form a negative pressure state. At the initial stage of suction, the breast pump can first use the negative pressure tank 34 to evacuate the air in the suction cavity 23 before starting the air pump 31 to form a preliminary suction effect. The first solenoid valve 41 is installed on the air path connection between the air pump 31 and the negative pressure tank 34, and the second solenoid valve 42 is installed on the air pump 31. The air path between the second suction channel 102 is connected, and the first diversion port a of the diversion pipe 44 is connected to the negative pressure tank 34. The control unit 32 can detect the suction effect of the negative pressure tank 34 through the negative pressure sensor 33, so that the negative pressure range of the adsorption cavity 23 is controlled between -2kPa and -25kPa, and the negative pressure state preferably meets -10kPa. When the negative pressure tank 34 extracts the air from the adsorption cavity 23 and still does not reach the preset negative pressure standard, the control unit 32 starts the air pump 31 to continue to suck the air from the adsorption cavity 23 to enhance the adsorption effect. The negative pressure tank 34 draws air in advance, which can reduce the workload of the air pump 31, speed up the adsorption efficiency, and improve the adsorption speed and adsorption stability.

[0069] The working principle of this embodiment is as follows:

[0070] Before wearing, the air inside the negative pressure tank 34 is pumped out in advance by the air pump 31, and then the control unit 32 controls the first solenoid valve 41 and the second solenoid valve 42 to be closed, that is, the corresponding air path positions are disconnected, so that the negative pressure tank 34 and the connected air pipe 43 form a closed negative pressure state inside;

[0071] When wearing the breast milk bottle, the user places the breast skin close to the inlet end 241 of the milk suction channel 24, and completely fits the flexible sealing curved surface of the second elastic suction part 22 against the user's skin so that the nipple passes through the inlet end 241 and extends into the milk suction channel 24. Then, the flexible suction curved surface of the first elastic suction part 21 completely fits against the user's skin, so that the suction cavity 23 forms a closed space. The control unit 32 controls the first solenoid valve 41 to open so that the pipeline between the negative pressure tank 34 and the suction cavity 23 is connected, that is, the corresponding air path positions are connected. The negative pressure tank 34 is connected to the suction cavity 23 through the air pipe 43 via the first suction channel 101 and the third suction channel 103. The negative pressure tank 34 draws the air in the suction cavity 23 into itself, so that preliminary suction is formed on the user's skin before the air pump 31 is started, achieving a pre-adsorption effect.

[0072] During adsorption, since the negative pressure sensor 33 is connected to the air path between the negative pressure tank 34 and the adsorption cavity 23 via the air pipe 43 and the shunt pipe 44, the negative pressure sensor 33 detects the air path environment between the negative pressure tank 34 and the adsorption cavity 23 in real time. When the control unit 32 detects through the negative pressure sensor 33 that the air path between the negative pressure tank 34 and the adsorption cavity 23 has not reached the preset negative pressure state (preferably -10kPa), the control unit 32 controls the air pump 31 to turn on and suck the air in the adsorption cavity 23, so that the negative pressure range of the adsorption cavity 23 is controlled to be between -2kPa and -25kPa, and the negative pressure state preferably meets -10kPa, so as to enhance the adsorption force on the user's skin and achieve a stable adsorption effect of the breast pump on the user's skin;

[0073] During milk extraction, the control unit 32 controls the second solenoid valve 42 to open, so that the pipeline between the air pump 31 and the second suction channel 102 is connected. In addition to extracting air from the adsorption cavity 23, the air pump 31 also simultaneously extracts air from the negative pressure cavity 12, so that the negative pressure cavity 12 forms a negative pressure state. The negative pressure state that satisfies the milk extraction effect is preferably -60 kPa (wherein the negative pressure of the adsorption cavity 23 is -10 kPa, and the negative pressure of the negative pressure cavity 12 is -50 kPa). The negative pressure state causes the elastic deformation part 6 to be concavely deformed toward the negative pressure cavity 12. The deformation of the elastic deformation part 6 causes the milk extraction channel 24 to also form a negative pressure state. The negative pressure state promotes milk to flow out of the nipple and flow into the milk storage cavity 13 through the one-way valve nozzle 243 at the valve port end 242 via the milk extraction channel 24, thereby achieving milk extraction and storage.

[0074] After completing milk sucking, the user pinches the surface of the release handle 5 with his fingers, and under the action of the anti-slip groove 51 to increase the friction, pulls and flips open the suction cup 2 so that the snap-fit ​​portion 25 gradually separates from the main body shell 1, that is, the milk storage chamber 13 is connected to the outside world, so as to take out the milk stored in the milk storage chamber 13, and the user can conveniently open the suction cup 2 through the release handle 5.

[0075] Example 3:

[0076] like Figure 1 、 Figure 2 and Figure 7 The wearable breast pump shown here is designed to facilitate suction. Unlike Example 2, the accommodating space 11 is a sealed space not connected to the outside world or an independent sealing component (i.e., a detachably mounted main unit) that is independently and detachably mounted on the main unit housing 1. The air pump 31 is connected to the first solenoid valve 41 and the second solenoid valve 42 via a shunt pipe 44, respectively. The first solenoid valve 41 and the first suction channel 101 do not need to be connected via the air pipe 43. The second solenoid valve 42 is connected to the second suction channel 102 via the air pipe 43. After the main unit is mounted on the main unit housing 1, the accommodating space 11 is connected to the suction cavity 23 via the first suction channel 101. When the first solenoid valve 41 is opened, the air pump 31 is connected to the accommodating space 11. The air pump 31 can directly pump air from the suction cavity 23 without the air pipe 43, thereby creating a predetermined negative pressure state.

[0077] The working principle of this embodiment is as follows:

[0078] When wearing the breast milk chute, the user places the breast skin close to the inlet end 241 of the milk suction channel 24, and the flexible sealing curved surface of the second elastic suction part 22 is completely in contact with the user's skin, so that the nipple passes through the inlet end 241 and extends into the milk suction channel 24. Then, the flexible suction curved surface of the first elastic suction part 21 is completely in contact with the user's skin, so that the suction cavity 23 forms a closed space.

[0079] During adsorption, the control unit 32 controls the first solenoid valve 41 to open so that the air pump 31 is connected to the closed accommodating space 11. Since the first suction channel 101 and the negative pressure sensor 33 are not connected to the air pipe 43 and are directly exposed to the accommodating space 11, the adsorption cavity 23 is naturally connected to the accommodating space 11. After the first solenoid valve 41 is opened, the air pump 31 is connected to the adsorption cavity 23 via the accommodating space 11, the first suction channel 101 and the third suction channel 103. The air pump 31 directly sucks the accommodating space 11 and the adsorption cavity 23. 3, the negative pressure sensor 33 directly detects the negative pressure state of the accommodating space 11 and can simultaneously detect the negative pressure state of the adsorption cavity 23 because the accommodating space 11 and the adsorption cavity 23 are connected through the first suction channel 101 and the third suction channel 103. The control unit 32 controls the air pump 31 to suck until a negative pressure state is formed inside. The negative pressure range is controlled between -5kPa and -20kPa, and the negative pressure state is preferably -10kPa to enhance the adsorption force on the user's skin and achieve a stable adsorption effect of the breast pump on the user's skin;

[0080] During milk extraction, the control unit 32 controls the second solenoid valve 42 to open, thereby connecting the pipeline between the air pump 31 and the second suction channel 102. In addition to extracting air from the adsorption cavity 23, the air pump 31 also simultaneously extracts air from the negative pressure chamber 12, causing the negative pressure chamber 12 to form a negative pressure state. The negative pressure state causes the elastic deformation portion 6 to deform concavely toward the negative pressure chamber 12. The deformation of the elastic deformation portion 6 causes the milk suction channel 24 to also form a negative pressure state. The negative pressure state causes milk to flow out of the nipple and flow through the one-way valve nozzle 243 at the valve port end 242 into the milk storage chamber 13 via the milk suction channel 24, thereby achieving milk extraction and storage.

[0081] After completing milk sucking, the user pinches the surface of the release handle 5 with his fingers, and under the action of the anti-slip groove 51 to increase the friction, pulls and flips open the suction cup 2 so that the snap-fit ​​portion 25 gradually separates from the main body shell 1, that is, the milk storage chamber 13 is connected to the outside world, so as to take out the milk stored in the milk storage chamber 13, and the user can conveniently open the suction cup 2 through the release handle 5.

[0082] Example 4:

[0083] Based on the above embodiments, this embodiment adopts a breast pump adsorption method, which is applied to the wearable breast pump described in any of the above embodiments.

[0084] The breast pump adsorption method comprises:

[0085] S1, attaching the suction cup (2) to the breast skin of the user so that the nipple extends into the milk suction channel (24) and the suction cavity (23) forms a closed space;

[0086] S2, using the suction device (3) to extract the air from the adsorption cavity (23), so that the adsorption cavity (23) forms a negative pressure state, thereby achieving an adsorption effect;

[0087] S3. Use the suction device (3) to extract air from the negative pressure chamber (12), so that the negative pressure chamber (12) forms a negative pressure state, driving the suction cup (2) to perform a suction action on the user's breast, thereby achieving a milk suction effect.

[0088] As another preferred embodiment 401 of embodiment 4,

[0089] The suction device 3 is connected to the suction cup 2 through the first suction channel 101, and is connected to the negative pressure chamber 12 through the second suction channel 102. The suction pipeline structure 4 includes a first solenoid valve 41 and a second solenoid valve 42 for controlling the air path connection.

[0090] The breast pump adsorption method comprises:

[0091] Using a first solenoid valve (41) to control the air connection between the air pump (31) and the first suction channel (101);

[0092] Using a second solenoid valve (42) to control the air connection between the air pump (31) and the second suction channel (102);

[0093] Before the air pump (31) is started, air is extracted from the adsorption cavity (23), so that the adsorption cavity (23) forms a negative pressure state, thereby achieving an adsorption effect.

[0094] As another preferred embodiment 402 of embodiment 4,

[0095] Breast pump suction methods also include:

[0096] The negative pressure sensor 33 is used to detect whether the negative pressure state of the adsorption cavity 23 reaches the preset negative pressure range. When the negative pressure state is not within the preset negative pressure range, the control unit 32 starts the air pump 31 to extract air from the adsorption cavity 23 so that the negative pressure state of the adsorption cavity 23 meets the preset negative pressure range.

[0097] The preset negative pressure range of the adsorption function is between -2 kPa and -25 kPa. The negative pressure state that satisfies the adsorption effect in step S2 preferably satisfies -10 kPa, and the negative pressure state that satisfies the milk suction effect in step S3 preferably satisfies -60 kPa (wherein, the negative pressure of the adsorption cavity 23 is -10 kPa, and the negative pressure of the negative pressure cavity 12 is -50 kPa).

[0098] Example 5:

[0099] The suction device 3 includes a negative pressure tank 34 for assisting suction, and the negative pressure tank 34 is connected to the air path between the air pump 31 and the adsorption cavity 23;

[0100] The breast pump adsorption method further comprises between step S1 and step S2:

[0101] A first solenoid valve 41 is used to control the air connection between the air pump 31 and the negative pressure tank 34;

[0102] The negative pressure tank 34 is used to extract the air in the adsorption cavity 23 before the air pump 31 is started, so that the adsorption cavity 23 forms a negative pressure state, thereby achieving a pre-adsorption effect.

[0103] The above examples are merely provided to further illustrate the technical content of the present invention for easier understanding by the reader, but do not limit the embodiments of the present invention to these examples. Any extension or re-creation of the technology based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A wearable breast pump that facilitates suction, characterized by: The invention comprises a main body shell (1) and a suction cup member (2), wherein the main body shell (1) has a negative pressure chamber (12) and a milk storage chamber (13), and the suction cup member (2) has a milk suction channel (24) respectively connected to the outside and the milk storage chamber (13). The suction cup member (2) is detachably mounted on the main body shell (1), and the suction cup member (2) has an adsorption cavity (23) on a side for contacting the user's skin. The main body housing (1) comprises a suction device (3) for sucking internal air to form negative pressure and a suction pipeline structure (4), wherein the suction device (3) is connected to the adsorption cavity (23) and the negative pressure cavity (12) respectively; The milk suction channel (24) is provided with a first elastic adsorption portion (21) and a second elastic adsorption portion (22) for fitting the user's skin at a position close to the inlet end (241) for communicating with the outside world; An adsorption cavity (23) is provided between the first elastic adsorption portion (21) and the second elastic adsorption portion (22); The second elastic adsorption portion (22) has a protruding structure at a position close to the adsorption cavity (23) for reducing the degree of expansion deformation of the second elastic adsorption portion (22) under pressure.

2. The wearable breast pump according to claim 1, characterized in that: The suction device (3) is connected to the suction cup member (2) via a first suction channel (101), the suction device (3) is connected to the negative pressure chamber (12) via a second suction channel (102), and the first suction channel (101) is connected to the adsorption cavity (23) via a third suction channel (103).

3. The wearable breast pump according to claim 1, characterized in that: The milk suction channel (24) has a first elastic adsorption portion (21) and a second elastic adsorption portion (22) on a side for fitting the user's skin, the first elastic adsorption portion (21) opens from the milk suction channel (24) toward the outside, and the first elastic adsorption portion (21) has a flexible adsorption curved surface for fitting the user's skin, and the flexible adsorption curved surface smoothly intersects and connects with the milk suction channel (24); The second elastic adsorption portion (22) extends from the inner wall of the milk suction channel (24) toward the outside and opens toward the outer diameter of the first elastic adsorption portion (21). The second elastic adsorption portion (22) has a flexible sealing surface for elastically contacting the user's skin.

4. The wearable breast pump according to claim 2, wherein: The suction device (3) includes an air pump (31) and a control unit (32); the suction pipeline structure (4) includes a first solenoid valve (41), a second solenoid valve (42) and an air pipe (43) for controlling the connection of the air path; the control unit (32) includes a negative pressure sensor (33) for detecting the internal air pressure state; and the control unit (32) is electrically connected to the air pump (31), the first solenoid valve (41) and the second solenoid valve (42), respectively.

5. The wearable breast pump according to claim 4, characterized in that: The suction device (3) and the suction pipeline structure (4) are installed in the accommodating space (11) of the main body shell (1); the accommodating space (11) is a closed space; the accommodating space (11) is connected to the adsorption cavity (23) through the first suction channel (101); the accommodating space (11) is connected to the negative pressure cavity (12) through the second suction channel (102); the first solenoid valve (41) is installed at the air extraction end of the air pump (31); and the second solenoid valve (42) is installed on the air path connection between the air pump (31) and the second suction channel (102).

6. The wearable breast pump according to claim 4, characterized in that: The first solenoid valve (41) is installed on the air path connection between the air pump (31) and the first suction channel (101), and the second solenoid valve (42) is installed on the air path connection between the air pump (31) and the second suction channel (102).

7. The wearable breast pump according to claim 4, characterized in that: The suction device (3) further comprises a negative pressure tank (34) for assisting suction, wherein the negative pressure tank (34) is connected to the first suction channel (101) and / or the second suction channel (102) via an air pipe (43), the first solenoid valve (41) is installed on the air path connection between the air pump (31) and the negative pressure tank (34), and the second solenoid valve (42) is installed on the air path connection between the air pump (31) and the second suction channel (102).

8. The wearable breast pump according to claim 7, characterized in that: The suction pipeline structure (4) includes a diverter pipe (44) installed on the air pump (31), a first diverter port a of the diverter pipe (44) is connected to the negative pressure tank (34), a second diverter port b of the diverter pipe (44) is connected to the first suction channel (101) through the air pipe (43), a third diverter port c of the diverter pipe (44) is connected to the suction end of the air pump (31) through the air pipe (43), and a fourth diverter port d of the diverter pipe (44) is connected to the negative pressure sensor (33) through the air pipe (43).

9. A wearable breast pump for easy suction according to any one of claims 1 to 8, characterized in that: The suction cup member (2) has a fastening portion (25) for fastening and mounting on the main housing (1); the fastening portion (25) extends outward from a position close to the milk storage chamber (13) to form a loosening handle (5) for easy disassembly and opening; the surface of the loosening handle (5) has anti-slip grooves (51); a plurality of the anti-slip grooves (51) are arranged at intervals from a position of the loosening handle (5) close to the fastening portion (25) toward a direction away from the fastening portion (25).

10. A wearable breast pump for easy suction according to any one of claims 1 to 8, characterized in that: The milk suction channel (24) is provided with an elastic deformation portion (6) at a position close to the negative pressure chamber (12) for facilitating negative pressure suction. A sealed negative pressure chamber (12) is formed between the elastic deformation portion (6) and the main body shell (1). The elastic deformation portion (6) has a concave and / or convex structure alternately arranged from the outside to the inside to form a concave-convex corrugated thin-walled curved surface structure.

11. A breast pump suction method, applied to the wearable breast pump according to any one of claims 1 to 10, characterized in that: The breast pump adsorption method comprises: The suction cup (2) is attached to the breast skin of the user so that the nipple extends into the milk suction channel (24) and the suction cavity (23) forms a closed space; Using a suction device (3) to extract air from the adsorption cavity (23), so that the adsorption cavity (23) forms a negative pressure state, thereby achieving an adsorption effect; The suction device (3) is used to extract air from the negative pressure chamber (12), so that the negative pressure chamber (12) forms a negative pressure state, driving the suction cup member (2) to perform a suction action on the user's breast, thereby achieving a milk suction effect.

12. The breast pump suction method according to claim 11, characterized in that: The suction device (3) includes an air pump (31), and the suction pipeline structure (4) includes a first solenoid valve (41) and a second solenoid valve (42) for controlling the communication of the air path; The breast pump adsorption method comprises: Using a first solenoid valve (41) to control the air connection between the air pump (31) and the first suction channel (101); Using a second solenoid valve (42) to control the air connection between the air pump (31) and the second suction channel (102); Before the air pump (31) is started, air is extracted from the adsorption cavity (23), so that the adsorption cavity (23) forms a negative pressure state, thereby achieving an adsorption effect.

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