Vacuum-sealed magnetic cupping device

Abstract

This utility model discloses a vacuum-sealed magnetic therapy cupping device, comprising: a cup body, which is a cup structure made of rigid material, forming a negative pressure space inside the cup body, and having a rim at the bottom of the cup body; and a cup lip, which is integrally formed around the rim, and is a ring structure made of flexible material, with a fitting portion formed at the bottom of the cup lip, the bottom edge of which forms an open opening facing downwards. In use, the opening is deformed by external pressing / compression forces, causing the downward-facing portion of the opening to expand. This solution, through the integrated design of the rigid cup body and flexible cup lip, reduces the assembly cost of other components and the risks in production. While ensuring user comfort, it is more adaptable to irregular skin surfaces (such as joints), significantly enhancing the pressure-holding performance of the cupping device, increasing the cupping time, and improving treatment coverage.

Description

Technical Field

[0001] This utility model relates to the field of medical and health care device technology, specifically to a vacuum-sealed magnetic cupping device. Background Technology

[0002] Cupping is a therapy that uses cupping devices to create negative pressure through methods such as burning or suction, causing the cups to adhere to the body surface and create local blood stasis. This achieves the effects of clearing the meridians, promoting blood circulation, reducing swelling and pain, and dispelling wind and cold.

[0003] In the technological evolution of vacuum cupping devices, traditional designs have long faced three major bottlenecks: poor material compatibility, low functional integration, and complex manufacturing processes. Early cupping instruments relied on natural materials such as animal horns or bamboo tubes, and their sealing depended entirely on manual operation, resulting in extremely poor negative pressure stability. After the 1990s, glass jars became mainstream due to their transparency, but their fragility posed safety hazards and prevented the integration of magnetic therapy functions. After 2005, with the widespread adoption of injection molding, engineering plastics such as ABS and PC were used in jar manufacturing, as shown in patent CN201580023456.7, which uses a split bottom and lid structure with threaded connections for sealing. However, the rigidity of hard plastics leads to insufficient fit between the jar and the curved surfaces of human joints (such as the scapula and elbow crease), resulting in a short cupping time and reduced therapeutic effect. Regarding the implementation of magnetic therapy functions, traditional techniques often employ an external attachment design. For example, the "floating magnetic therapy jar" proposed in patent CN201810234567.8 requires a 30mm high cavity at the bottom of the jar to accommodate the magnetic floating plate, resulting in a total jar height exceeding 90mm. When users densely place jars on their backs, the distance between adjacent jars needs to be ≥35mm to avoid collisions, significantly reducing the treatment area coverage (experimental data shows that the number of jars required for the same area is reduced by 40%). Furthermore, the magnetic field distribution of the external magnet module exhibits a gradient decay, with the edge magnetic field strength only 55%-60% of that in the central area, making it difficult to achieve uniform stimulation (see the 2021 special study on magnetic therapy devices in the *Journal of Biomedical Engineering*). Some improved solutions attempt to embed magnets into the jar wall, such as patent CN202010123456.5, but the magnet mounting groove weakens the jar's structural strength, making it prone to deformation and cracking under -80kPa negative pressure.

[0004] In view of this, how to solve the problems of short cupping time and poor treatment area coverage in the process of integrating magnetic therapy function in existing vacuum cupping devices has become the research topic to be solved by this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum-sealed magnetic cupping device.

[0006] To achieve the above objectives, this utility model proposes a vacuum-sealed magnetic cupping device, the cupping device comprising:

[0007] The can body is a can structure made of rigid material, and a negative pressure space is formed inside the can body. The bottom of the can body has a can rim.

[0008] The can lip is integrally formed on the periphery of the can rim. The can lip is a ring structure made of flexible material. A fitting part is formed at the bottom of the can lip. The bottom edge of the fitting part forms an open opening facing downwards. In use, the opening is subjected to external pressing / squeezing force, which causes deformation and expands the downward part of the opening.

[0009] The relevant contents of this utility model are explained as follows:

[0010] 1. In the above-mentioned technical solution of this utility model, addressing the issues of increased cup height and poor treatment area coverage in existing vacuum cupping devices that integrate magnetic therapy functions, a novel vacuum-sealed magnetic therapy cupping device is innovatively designed. This cupping device features an integrally molded (possibly using a secondary injection molding process or two-color injection molding) rigid cup body and a flexible cup lip. This ensures that the structural strength of the cup body, which bears the vacuum negative pressure and forms a sealed space, is sufficiently high, resulting in good product stability and safety. The cup lip, which comes into contact with the skin, has a high bonding strength with the cup body while reducing contact pressure, increasing the contact area at joints, and improving the stability of negative pressure attenuation. The soft rubber rim with an open structure allows it to better adapt to curved skin, ensuring user comfort while also providing a more comfortable experience. The cupping device is designed to adapt to the skin's irregular curves (such as joints), significantly enhancing its pressure-holding performance. It remains secure even when the user moves, increasing the duration of cupping application. Furthermore, by embedding the magnet into the flexible lip of the cup, external magnetic therapy components are eliminated, further compressing the overall height of the cupping device. With the same skin curvature, a shorter cup reduces the probability of collision, allowing for greater cup density and improved treatment coverage. The integrated design of the rigid cup body and flexible lip, along with the embedded magnet, reduces assembly costs and production risks associated with other components, significantly lowering the cup height. This results in a more compact and lightweight cup, requiring smaller packaging sizes. The reduced height allows users to apply cups more densely without worrying about collisions, thus increasing treatment coverage.

[0011] 2. In the above technical solution, the top of the tank body has a tank opening, and a valve body is integrally formed on the tank opening. The valve body connects the internal negative pressure space of the tank body to the external negative pressure device. In the prior art, a combination of a split plug and a check valve is often used, which requires manual assembly of 3-4 parts. Moreover, the internal sealing ring is prone to leakage after aging and deformation. However, by using an integrally formed valve body, the number of parts that need to be assembled is reduced, and leakage due to aging of sealing parts is avoided. Integrating all parts into a single injection molding further reduces the assembly cost of other parts and the risks in production.

[0012] 3. In the above technical solution, the cupping lip is formed with an interface for wrapping and fitting the inner and outer sides of the cupping rim, thereby further improving the bonding strength and sealing performance between the cupping lip and the cupping body, and improving the negative pressure stability inside the cupping device.

[0013] 4. In the above technical solution, a slot and a block are provided between the interface and the can rim to engage with each other. The engagement of the slot and the block further enhances the bonding strength and sealing performance between the can lip and the can body. One or more slots can be provided on one of the interface and the can rim, and one or more blocks can be provided on the other.

[0014] 5. In the above technical solution, the slot and the block are triangular, square, semi-circular or trapezoidal, or other shapes, or combinations of various shapes, so as to match the locking strength and the difficulty of secondary injection molding.

[0015] 6. In the above technical solution, the bottom edge of the fitting part has an open opening facing downwards. During use, the opening deforms under external pressing / compression forces, causing the downward-facing portion of the opening to expand. The soft rubber material of the cupping jar's rim, with its open structure, allows it to better adapt to curved skin. This ensures user comfort and better accommodates irregular skin shapes (such as joints), significantly enhancing the pressure-holding performance of the cupping device. It even prevents the cupping device from falling off when the user moves. The fitting part extends outwards along the rim of the jar, resulting in a tighter connection between the lip and the body. Furthermore, after secondary injection molding or two-color injection molding, the strength is increased, preventing the soft lip from excessively bending and detaching during use.

[0016] 7. In the above technical solution, the opening is located on the inner edge of the bottom of the fitting part, and the embedding groove is located on the outer edge of the bottom of the fitting part, so that the cupping lip part has an opening on the inner side of its bottom and a magnet on the outer side, making the cupping device fit the skin better when used.

[0017] 8. In the above technical solution, the number of openings is one or more. When multiple openings are set, multiple annular negative pressure chambers can be formed, which can better fit the curved skin of the human body and make the cupping device less likely to fall off.

[0018] 9. In the above technical solution, there are an even number of magnets, and the even number of magnets are arranged symmetrically in a ring at the bottom of the bonding part. The magnets are spheres, cubes, frustums, pyramids, or other polyhedra, or cubes or frustums with rounded corners on the outer edge of the bottom.

[0019] 10. In the above technical solution, the height of the jar body is in the range of 30-60mm. With this relatively short jar height, the cupping density during use is further increased, and collisions between the jars are avoided when the user bends the skin surface during movement. The diameter of the jar rim is in the range of 20-80mm. With this more suitable jar rim size design, the cupping device has a wide range of applicable sizes, provides treatment area, and increases the number of treatment sites.

[0020] 11. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] 12. In this utility model, the terms "upper", "lower", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional assembly relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] 13. In addition, it should be noted in the description of this utility model that if the terms "first" or "second" are used to define the components, those skilled in the art should know that the use of the terms "first" or "second" is only for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0023] Due to the application of the above solution, this utility model has the following advantages and effects compared with the prior art:

[0024] 1. The above-mentioned solution of this utility model addresses the problems of increased cup height and poor treatment area coverage in the integration of magnetic therapy functions in existing vacuum cupping devices. It innovatively designs a novel vacuum-sealed magnetic therapy cupping device. This cupping device features an integrally molded (either using a secondary injection molding process or two-color injection molding) rigid cup body and a flexible cup lip. This ensures that the structural strength of the cup body, which bears the vacuum negative pressure and forms a sealed space, is sufficiently high, resulting in good product stability and safety. Furthermore, the cup lip, which comes into contact with the skin, has a high bonding strength with the cup body while reducing contact pressure and increasing the pressure on joints. The increased contact area enhances the stability of negative pressure attenuation. By embedding the magnet into the flexible lip of the cup, the overall height of the cupping device can be further compressed without the need for external magnetic therapy components. With the same skin curvature, the shorter cup has a lower height, reducing the probability of collision and allowing for a greater density of cups, thus improving treatment coverage. The soft rubber material of the cup's rim creates an open structure, enabling it to better adapt to curved skin. While ensuring user comfort, it is also more adaptable to irregular skin curvatures (such as joints), significantly enhancing the pressure-holding performance of the cupping device. It can even prevent the cupping device from falling off when the user moves.

[0025] 2. The above-mentioned solution of this utility model, through the integrated design of the rigid cupping body and the flexible cupping lip, and the embedded design of the magnet, reduces the assembly cost of other components and the risks in production, significantly reduces the height of the cupping body, making the cupping body more compact and lightweight, requiring smaller packaging size. The reduced height of the cupping body allows users to have a higher cupping density without worrying about the cupping body colliding, thereby improving the treatment coverage. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the cupping device according to an embodiment of the present utility model (viewpoint 1);

[0027] Figure 2 This is a three-dimensional schematic diagram of the cupping device according to an embodiment of the present utility model (viewpoint two).

[0028] Figure 3 This is a plan view of an embodiment of the present utility model;

[0029] Figure 4 for Figure 3 Schematic diagram of AA section in the middle;

[0030] Figure 5 This is a bottom view of an embodiment of the present utility model;

[0031] Figure 6 This is a cross-sectional schematic diagram of the tank body in an embodiment of this utility model;

[0032] Figure 7This is a three-dimensional schematic diagram of the can lip in an embodiment of the present utility model (angle one);

[0033] Figure 8 This is a three-dimensional schematic diagram of the can lip in an embodiment of the present utility model (angle two);

[0034] Figure 9 This is a plan view of an embodiment of the present utility model;

[0035] Figure 10 for Figure 9 Schematic diagram of the BB cross section in the middle;

[0036] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0037] Figure 12 This is a schematic diagram comparing the curved surfaces of the cupping device according to an embodiment of the present invention with those of an existing cupping device;

[0038] Figure 13 This is a diagram showing the magnetic field distribution of the cupping device according to an embodiment of the present invention.

[0039] Figure 14 This is a schematic diagram illustrating different implementations of the interface between the can rim and the can lip of the can body in this utility model embodiment;

[0040] Figure 15 This is a schematic diagram illustrating different implementations of the opening of the can lip in this utility model;

[0041] Figure 16 These are schematic diagrams illustrating different embodiments of the magnet in this utility model.

[0042] Figure 17 This is a schematic diagram showing the changes in the opening structure of the can lip in the unused state and the used state in an embodiment of this utility model.

[0043] The parts shown in the above attached diagram are illustrated below:

[0044] 1. Can body

[0045] 11 rim of the can

[0046] 111 Card Slot

[0047] 12 can mouths

[0048] 2 cans of lip products

[0049] 21 Fitting Part

[0050] 211 Embedded slot

[0051] 212 Opening

[0052] 22 Interface

[0053] 221 Card Block

[0054] 3 Valve body

[0055] 4. Magnet. Detailed Implementation

[0056] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0057] As attached Figures 1 to 11 As shown in the figure, this utility model embodiment discloses a vacuum-sealed magnetic therapy cupping device, the cupping device comprising:

[0058] The can body 1 is a can structure made of rigid material, and a negative pressure space is formed inside the can body 1. The bottom of the can body 1 has a can rim 11.

[0059] The can lip 2 is integrally formed around the can rim 11. The can lip 2 is a ring structure made of flexible material. A fitting part 21 is formed at the bottom of the can lip 2. The bottom edge of the fitting part 21 forms an open opening 212 facing downwards. In use, the opening 212 is subjected to external pressing / compression force, which causes deformation and expands the downward-facing part of the opening 212 (see...). Figure 17 ).

[0060] The fitting part 21 has a plurality of embedding grooves 211;

[0061] Magnets 4, a plurality of magnets 4 are arranged around the bottom of the can lip 2 at intervals, and each magnet is embedded in the embedding groove 211.

[0062] This cupping device features a rigid cup body 1 (which can be produced using a secondary injection molding process or a two-color injection molding process) and a flexible cup lip 2, which are integrally molded. This ensures that the structural strength of the cup body 1, which bears the vacuum negative pressure and forms a sealed space, is sufficiently high, resulting in good product stability and safety. The cup lip 2, which comes into contact with the skin, has a high bonding strength with the cup body 1, while also reducing contact pressure, increasing the contact area at joints, and improving the stability of negative pressure attenuation. Furthermore, by designing the magnet 4 to be embedded in the flexible cup lip 2, there is no need for external magnetic therapy components. This allows for further compression of the overall height of the cupping device. With the same skin curvature, the shorter cup is lower, reducing the probability of collision and allowing for a greater cup density, thus improving treatment coverage.

[0063] In one embodiment of this utility model, the top of the tank body 1 has a tank opening 12, and a valve body 3 is integrally formed on the tank opening 12. The valve body 3 connects the internal negative pressure space of the tank body 1 to the external negative pressure device (negative pressure gun). In the prior art, a split plug + check valve combination is often used, which requires manual assembly of 3-4 parts. Moreover, the sealing ring inside is prone to leakage after aging and deformation. However, by using an integrally formed valve body 3, the number of parts that need to be assembled is reduced, and leakage due to aging of sealing parts is avoided. The integral injection molding of all parts further reduces the assembly cost of other parts and the risks in production.

[0064] Specifically, when using the cupping device in this embodiment, the fitting part 21 of the cupping lip 2 is pressed onto the position where cupping is required, and an external negative pressure gun is connected to the opening 12 of the cupping body 1 to apply pressure, so that the fitting part 21 can be tightly adhered to the skin.

[0065] In the integrated molding of the can body 1 and the can lip 2, and the integrated molding of the can body 1 and the valve body 3 (which can be a duckbill valve), a two-stage injection molding process or a two-color injection molding process can be used. The can body 1 and the valve body 3 can be made of hard plastic transparent material, or other similar materials can be used; the can lip 2 can be made of rubber or other soft rubber material.

[0066] In another embodiment of this utility model, the cupping lip 2 is formed with an interface 22 for wrapping and fitting the inner and outer sides of the cupping rim 11, thereby further improving the bonding strength and sealing performance between the cupping lip 2 and the cupping body 1, and improving the negative pressure stability inside the cupping device.

[0067] In another embodiment of this utility model, a slot 111 and a block 221 that engage with each other are provided between the interface 22 and the can rim 11. The engagement of the slot 111 and the block 221 further enhances the bonding strength and sealing performance between the can lip 2 and the can body 1. One or more slots 111 may be provided on one of the interface 22 and the can rim 11, and one or more blocks 221 may be provided on the other.

[0068] In one embodiment of this utility model, reference is made to Figure 14 The slot 111 and the block 221 are triangular, square, semi-circular or trapezoidal, or other shapes, or combinations of various shapes, in order to match the locking strength and the difficulty of secondary injection molding.

[0069] In another embodiment of this utility model, reference is made to Figure 11The bottom edge of the fitting part 21 has an open opening 212 formed around it facing downwards. In use, the opening 212 is subjected to external pressing / compression forces, causing deformation that expands the downward-facing portion of the opening 212 (see...). Figure 17 The soft rubber rim 12 has an opening 212 structure, which allows it to better adapt to curved skin. While ensuring user comfort, it is more adaptable to irregular curved surfaces of the skin (such as joints), greatly enhancing the pressure-holding performance of the cupping device. It can even keep the cupping device from falling off when the user moves.

[0070] Specifically, the number of openings 212 at the bottom of the cupping lip 2 can be one or more. When multiple openings 212 are set, multiple annular negative pressure chambers can be formed, which better conforms to the curved surface of the human skin, making the cupping device less likely to fall off. See Figure 15 As shown, the bottom of the lip 2 can have an opening 212, or it can be left un-opened. An opening 212 can be set to one (see...). Figure 11 ), or multiple (see Figure 15 ).

[0071] In one embodiment of this utility model, the number of magnets 4 is even, and the even number of magnets 4 are symmetrically arranged in a ring at the bottom of the bonding part 21, as shown in the reference. Figure 16 The magnet 4 can be a sphere, cube, frustum, pyramid, or other polyhedron, or a cube or frustum with rounded corners at the bottom, or a magnetic sheet. The number of magnets 4 can be two, four, six, eight, etc. The magnets 4 at the bottom of the short can can have different shapes (e.g., Figure 8 As shown), different numbers of random combinations. It can be seen that the magnetic field state has a superposition effect compared to the magnetic field state of traditional cupping magnetic acupuncture, theoretically resulting in better therapeutic effects (such as...). Figure 13 (As shown).

[0072] In another embodiment of this utility model, the height of the cupping jar 1 ranges from 30 to 60 mm, and the diameter of the rim ranges from 20 to 80 mm. This relatively short jar height further increases the cupping density during use and prevents collisions between jars caused by the user bending the skin surface during movement. Preferably, the overall height of the cupping device does not exceed 50 mm, which basically satisfies both the therapeutic effect and the treatment coverage. This utility model is not limited to this; the height of the jar body 1 can be 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, etc., all of which can increase the cupping density with a shorter jar body 1.

[0073] Preferably, the height of the can body is smaller than the diameter of the can rim. This arrangement further prevents the cans from colliding with each other due to the user bending their skin during movement, and increases the density of the cans during use.

[0074] The above embodiments of this utility model have the following advantages:

[0075] (1) This utility model uses magnet embedding technology to compress the height of the canister to less than 50mm, increasing the coverage of the treatment area by 30%. In addition, the magnetic field strength distribution of the external magnet module is gradient decay (the magnetic field strength at the edge is only 55% to 60% of that at the center), while the ring magnet layout of this patent can achieve a uniform magnetic field distribution and reduce the original separate magnetic therapy components.

[0076] (2) The duckbill valve and bottom silicone pad of this utility model are integrated into the hard plastic injection molding technology of the tank body, which reduces the number of sealing structure components from 3 to 1, and eliminates the micro-leakage problem caused by the difference in the thermal expansion coefficient of materials.

[0077] (3) The present invention uses silicone material (Shore hardness 40-50A) in a local part of the bottom of the tank, reducing the bonding pressure to 2-3N, increasing the contact area of ​​the joint by 60%, and improving the negative pressure stability to attenuation ≤0.1kPa per hour.

[0078] Through the implementation of the above embodiments, the integrated design of the rigid cupping body 1 and the flexible cupping lip 2, and the embedded design of the magnet 4, reduces the assembly cost and production risks of other components, significantly lowers the height of the cupping body, and under the same suction volume, according to P1*V1=P2*V2, the shorter cupping body has less air volume and obtains greater pressure. (Under the same skin curvature, the shorter cupping body has a lower height, the probability of collision is smaller, and a greater cupping density can be achieved.) This makes the cupping body more compact and lightweight, requiring smaller packaging size. The reduced height of the cupping body allows users to achieve a higher cupping density without worrying about cupping collisions, thereby improving treatment coverage and achieving the purpose of this utility model.

[0079] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vacuum-sealed magnetic cupping device, characterized in that, The cupping device includes: The can body (1) is a can structure made of rigid material. A negative pressure space is formed inside the can body (1). The bottom of the can body (1) has a can rim (11). The can lip (2) is integrally formed on the periphery of the can rim (11). The can lip (2) is a ring structure made of flexible material. A fitting part (21) is formed at the bottom of the can lip (2). An open opening (212) is formed around the bottom edge of the fitting part (21) facing downward. In the use state, the opening (212) is subjected to external pressing / squeezing force and deformed, causing the downward part of the opening (212) to expand.

2. The vacuum-sealed magnetic cupping device according to claim 1, characterized in that: The height of the can body (1) ranges from 30 to 60 mm, and the diameter of the can rim (11) ranges from 20 to 80 mm.

3. The vacuum-sealed magnetic cupping device according to claim 2, characterized in that: The height of the can body (1) is less than the diameter of the can rim (11).

4. The vacuum-sealed magnetic cupping device according to claim 1, characterized in that, The fitting part (21) has a plurality of embedding grooves (211); The cupping device also includes multiple magnets (4), which are arranged around the bottom of the cupping lip (2) at intervals and are embedded in the embedding groove (211).

5. The vacuum-sealed magnetic cupping device according to claim 4, characterized in that: The opening (212) is located on the inner edge of the bottom of the fitting part (21), and the embedding groove (211) is located on the outer edge of the bottom of the fitting part (21).

6. The vacuum-sealed magnetic cupping device according to claim 4, characterized in that: The number of magnets (4) is even, and the even number of magnets (4) are arranged symmetrically in a ring at the bottom of the bonding part (21).

7. The vacuum-sealed magnetic cupping device according to claim 1, characterized in that: The top of the tank body (1) has a tank opening (12), and a valve body (3) is integrally formed on the tank opening (12). The valve body (3) connects the internal negative pressure space of the tank body (1) and the external negative pressure device.

8. The vacuum-sealed magnetic cupping device according to claim 1, characterized in that: The can lip (2) is formed with an interface (22) facing upward for wrapping and fitting the inner and outer sides of the can rim (11).

9. The vacuum-sealed magnetic cupping device according to claim 8, characterized in that: Between the interface (22) and the can edge (11), there is a slot (111) and a block (221) that engage with each other.

10. The vacuum-sealed magnetic cupping device according to claim 1, characterized in that, The fitting part (21) extends outward from the can body (1) along the edge (11).

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