Flexible magnetic wearable low and medium frequency rehabilitation instrument

By using flexible magnetic connection technology, the problem of electrode pads in traditional low-frequency rehabilitation instruments easily loosening and falling off has been solved. This achieves a stable connection between the electrode pads and the rehabilitation instrument body and automatic reset of the wires, improving ease of use and comfort.

CN121550581APending Publication Date: 2026-02-24CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE
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Patent Information

Application Number
CN202610004346.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-05
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

The electrode pads of traditional low-frequency rehabilitation devices are prone to loosening and falling off from the main unit, causing interruptions in the physiotherapy process. In addition, the wires are easily tangled and messy, affecting the convenience and comfort of use.

Method used

The device employs a flexible magnetic connection method, which, through the movable cavity, first connector, second connector, magnetic component, and reset component, ensures a stable connection between the electrode pads and the main body of the rehabilitation device. It also automatically resets during large movements to prevent damage to the wires.

Benefits of technology

This achieves a stable electrical connection between the electrode pads and the main body of the rehabilitation device, preventing wire pulling, ensuring the continuity of the physiotherapy process and ease of use, and improving wearing comfort and wire management.

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Abstract

The invention discloses a flexible magnetic wearable low and medium frequency rehabilitation instrument, and relates to the technical field of rehabilitation instruments, the flexible magnetic wearable low and medium frequency rehabilitation instrument comprises a rehabilitation instrument body, a waistband is mounted on the outer side of the rehabilitation instrument body, a controller is mounted on the outer side of the rehabilitation instrument body, and a plurality of movable cavities are symmetrically formed in the rehabilitation instrument body; when the rehabilitation instrument is used, stable electric connection and anti-pulling protection of the rehabilitation instrument body and electrode slices are achieved, a magnetic attraction assembly is matched with a reset assembly, electrode contact pins are accurately inserted into electrode sockets, stable transmission of physiotherapy current is guaranteed, a wire is in a zigzag shape, the length is reserved, and the rehabilitation instrument is convenient to use. When the motion range is too large, the wire pulls the second connector to be separated from the first connector, the wire and a traditional connecting plug are prevented from being damaged, the wire and the traditional connecting plug are automatically reconnected after the motion is reset, and continuous physiotherapy is ensured.
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Description

Technical Field

[0001] This invention relates to the field of rehabilitation device technology, and in particular to a flexible magnetic wearable low-frequency rehabilitation device. Background Technology

[0002] Low- and medium-frequency rehabilitation devices are widely used in the rehabilitation field due to their gentle electrical stimulation. They simulate human bioelectric signals through electrode pads, which can promote local blood circulation and relieve muscle spasms when applied to muscle tissue. They are commonly used in sports injury rehabilitation, chronic pain intervention, and postoperative functional recovery, and are suitable for a variety of users, including fitness enthusiasts, middle-aged and elderly patients with chronic pain, and postoperative rehabilitation patients.

[0003] Traditional devices often have electrode wires that are directly and rigidly plugged into the main unit of the rehabilitation device, which can easily lead to messy tangling during use. In addition, the connection between the electrode and the main unit of existing devices is mostly a rigid plug. When the user moves with a large range of motion, the wires can be pulled and the plug may loosen, fall off, or be damaged. Furthermore, if the plug breaks and the physiotherapy process is interrupted, it needs to be manually reset. In view of this, this application proposes a flexible magnetic wearable low-frequency rehabilitation device. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible magnetic wearable low-frequency rehabilitation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A flexible magnetic wearable low-frequency rehabilitation device includes a main body, a waist belt mounted on the outer side of the main body, a controller mounted on the outer side of the main body, and multiple symmetrically arranged movable cavities within the main body. Each movable cavity has a first connector mounted on its bottom wall, and each first connector is electrically connected to the main body. A second connector is slidably connected within each movable cavity. A reset component is installed within each movable cavity, and the reset component pushes the second connector to abut against its corresponding first connector. A magnetic attraction component is installed between each second connector and its corresponding first connector. Multiple electrode sockets are mounted on the bottom surface of each first connector. Multiple electrode pins are mounted on the bottom surface of each second connector, and each electrode pin is inserted into its corresponding electrode socket. A wire is connected to the bottom surface of each second connector, and an electrode pad is mounted at the other end of each wire.

[0006] Preferably, each of the magnetic attraction components includes a first permanent magnet, and each first permanent magnet is mounted on the bottom surface of the corresponding second connector. Each first connector is mounted on the top surface of a second permanent magnet, and the bottom magnetic poles of each first permanent magnet are opposite to the top magnetic poles of the corresponding second permanent magnet.

[0007] Preferably, each of the reset components includes a cover plate, and each cover plate is fixedly installed on the top surface of the corresponding movable cavity. One end of each wire passes through the corresponding cover plate and extends outward. A spring is installed on the bottom surface of each cover plate, and the other end of each spring is fixedly connected to the top surface of the corresponding second connector.

[0008] Preferably, each of the movable cavities has multiple guide rods installed on its inner wall, and each of the second connectors has multiple guide grooves on its outer side, with each guide rod slidably connected to the corresponding guide groove.

[0009] Preferably, each of the wires is fitted with a patch on its outer side, and each patch is made of hydrogel.

[0010] Preferably, a female Velcro strap is installed on the outer ring of the belt, and a female Velcro strap is installed on the inner ring of the belt.

[0011] The present invention has the following beneficial effects: 1. This invention achieves a stable electrical connection and anti-pull protection between the rehabilitation instrument body and the electrode pads through a movable cavity, a first connector, a second connector, a magnetic suction component, a reset component, electrode pins, electrode sockets, wires, and electrode pads. The magnetic suction component and the reset component work together to ensure that the electrode pins are accurately inserted into the electrode sockets, ensuring stable transmission of the physiotherapy current. The wires are bend-shaped with reserved length. When the movement is too large, the wires pull the second connector away from the first connector, avoiding damage to the wires and traditional connectors. After the movement is reset, the two automatically reconnect, ensuring continuous physiotherapy.

[0012] 2. This invention achieves convenient wearing of the rehabilitation device and neat wiring by using devices such as patches, waist belt, female Velcro, and female Velcro. The female Velcro and female Velcro of the waist belt are bonded together to securely bind the rehabilitation device to the waist, adapting to different waist sizes and making it convenient for users to use when going out. In addition, the hydrogel patch on the outside of the wire can bind the wire to the surface of the human body, preventing the wire from getting tangled and reducing the interference of wire displacement during activities on physiotherapy, thus improving the comfort and convenience of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the flexible magnetic wearable low-frequency rehabilitation device proposed in this invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the active cavity of the flexible magnetic wearable low-frequency rehabilitation device proposed in this invention; Figure 3 This is a schematic diagram of the reset component structure of the flexible magnetic wearable low-frequency rehabilitation device proposed in this invention; Figure 4 This is a schematic diagram of the magnetic component structure of the flexible magnetic wearable low-frequency rehabilitation device proposed in this invention.

[0014] In the diagram: 1. Rehabilitation device body; 2. Waist belt; 3. Female Velcro strap; 4. Female Velcro strap; 5. Controller; 6. Wire; 7. Electrode pad; 8. Patch; 9. Movable cavity; 10. Guide rod; 11. First connector; 12. Cover plate; 13. Second connector; 14. Spring; 15. Guide groove; 16. Electrode pin; 17. First permanent magnet; 18. Electrode socket; 19. Second permanent magnet. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] This invention provides a technical solution: such as Figure 1-4 As shown, a flexible magnetic wearable low-frequency rehabilitation device includes a rehabilitation device body 1, a waist belt 2 installed on the outside of the rehabilitation device body 1, a controller 5 installed on the outside of the rehabilitation device body 1, multiple movable cavities 9 symmetrically opened inside the rehabilitation device body 1, a first connector 11 installed on the bottom wall of each movable cavity 9, and each first connector 11 is electrically connected to the rehabilitation device body 1, a second connector 13 is slidably connected in each movable cavity 9, a reset component is installed in each movable cavity 9, and the reset component pushes the second connector 13 to abut against the corresponding first connector 11, a magnetic attraction component is installed between each second connector 13 and the corresponding first connector 11, multiple electrode sockets 18 are installed on the bottom surface of each first connector 11, multiple electrode pins 16 are installed on the bottom surface of each second connector 13, and each electrode pin 16 is inserted into the corresponding electrode socket 18, a wire 6 is connected to the bottom surface of each second connector 13, and an electrode plate 7 is installed at the other end of each wire 6. It should be noted that the wire 6 is bent in the active cavity 9 and is used for convenient connection between the first connector 11 and the second connector 13 via a magnetic attraction component. When the electrode pad 7 is attached to the outside of the human body, if the user's movement is large and exceeds the maximum connection length of the wire 6, the wire 6 pulls the second connector 13 to overcome the force of the reset component and the magnetic attraction component, thereby causing the second connector 13 to detach from the first connector 11. When the user completes the reset, the second connector 13 and the first connector 11 reconnect under the force of the reset component and the magnetic attraction component, restoring the function of the electrode pad 7. This avoids damage to traditional connectors caused by excessive tension of the wire 6.

[0017] Furthermore, each magnetic component includes a first permanent magnet 17, and each first permanent magnet 17 is mounted on the bottom surface of the corresponding second connector 13. Each first connector 11 has a second permanent magnet 19 mounted on its top surface, and the bottom magnetic poles of each first permanent magnet 17 are opposite to the top magnetic poles of the corresponding second permanent magnet 19. The normal insertion of the first connector 11 and the second connector 13 is ensured by the attraction force between the first permanent magnet 17 and the second permanent magnet 19.

[0018] Furthermore, each reset assembly includes a cover plate 12, and each cover plate 12 is fixedly installed on the top surface of the corresponding movable cavity 9. One end of each wire 6 passes through the corresponding cover plate 12 and extends outward. A spring 14 is installed on the bottom surface of each cover plate 12, and the other end of each spring 14 is fixedly connected to the top surface of the corresponding second connector 13. The spring 14 is used to reset the second connector 13.

[0019] Furthermore, multiple guide rods 10 are installed on the inner wall of each movable cavity 9, and multiple guide grooves 15 are opened on the outer side of each second connector 13, and each guide rod 10 is slidably connected to the corresponding guide groove 15. The alignment accuracy between the second connector 13 and the first connector 11 is ensured by the guide groove 15 and the guide rod 10.

[0020] Furthermore, each wire 6 is fitted with a patch 8 on its outer side, and each patch 8 is made of hydrogel, which makes it easy to bind the wire 6 to the outside of the human body surface through the patch 8, thereby reducing the mess of the wire 6.

[0021] Furthermore, a female hook and loop fastener 4 is installed on the outer ring of the waist belt 2, and a male hook and loop fastener 3 is installed on the inner ring of the waist belt 2. This allows the waist belt 2 to be fastened to the outer side of the waist through the adhesion between the female hook and loop fastener 4 and the male hook and loop fastener 3, making it convenient for the user to wear when going out.

[0022] This invention provides a flexible magnetic wearable low-frequency rehabilitation device, the specific working principle of which is as follows: First, wear and fix the rehabilitation device body 1: The operator wraps the waist belt 2 around the waist of the human body, and uses the female Velcro 4 on the outer side of the waist belt 2 and the female Velcro 3 on the inner side of the waist belt 2 to stick together, so that the rehabilitation device body 1 is stably bound to the outside of the human body's waist, completing the wearing and fixing of the device, which is convenient for users to use when going out. Secondly, the electrode 7 is attached to the wire 6 and arranged: the electrode 7 connected to the bottom wire 6 of the second connector 13 is attached to the part of the human body that needs rehabilitation therapy. At the same time, the hydrogel material patch 8 on the outside of the wire 6 is used to bind the wire 6 to the surface of the human body to avoid the wire 6 from becoming messy and tangled. At this time, the wire 6 in the active cavity 9 is bent, with a certain length margin reserved to meet the stretching needs of the human body in daily activities. Then, under the combined action of the reset assembly and the magnetic attraction assembly, the second connector 13 and the first connector 11 maintain a stable contact state. On the one hand, the spring 14 on the bottom surface of the cover plate 12 applies a downward pushing force to the second connector 13, pushing the second connector 13 to move towards the first connector 11. On the other hand, the first permanent magnet 17 on the bottom surface of the second connector 13 and the second permanent magnet 19 on the top surface of the first connector 11 generate an attraction force due to opposite magnetic poles, further enhancing the connection stability between the two. During this process, the guide rod 10 on the inner wall of the active cavity 9 slides into the guide groove 15 on the outer side of the second connector 13 to ensure that the second connector 13 and the first connector 11 are precisely aligned, so that the electrode pin 16 on the bottom surface of the second connector 13 is accurately inserted into the electrode socket 18 on the bottom surface of the first connector 11, thereby realizing the electrical connection between the rehabilitation instrument body 1 and the electrode pad 7. Next, rehabilitation therapy and anti-pull protection: The operator starts the equipment through the controller 5. The rehabilitation instrument body 1 outputs a medium-low frequency current, which is transmitted to the electrode plate 7 through the first connector 11, the second connector 13, and the wire 6. The electrode plate 7 applies the current to the body's physiotherapy area to realize the rehabilitation therapy function. When the user's movements are large and the force of stretching the wire 6 exceeds the combined force of the spring 14's push and the magnetic component's attraction, the wire 6 will pull the second connector 13 to slide upward along the guide rod 10, causing the electrode pin 16 to disengage from the electrode socket 18. The first connector 11 and the second connector 13 will then disconnect from each other, thus avoiding the problem of damage caused by excessive tension of the wire 6 in traditional connectors.

[0023] Finally, the automatic reset function: when the user completes a large movement and the tension of the lead wire 6 disappears, under the combined action of the reset push of the spring 14 and the attraction force of the magnetic component, the second connector 13 slides down the guide rod 10 to reset, the electrode pin 16 is inserted into the electrode socket 18 again, the first connector 11 and the second connector 13 re-establish electrical connection, and the electrode 7 resumes its rehabilitation therapy function without manual reset, improving the convenience of using the equipment.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flexible magnetic wearable low-frequency rehabilitation device, comprising a rehabilitation device body (1), characterized in that, A waist belt (2) is installed on the outside of the rehabilitation instrument body (1), and a controller (5) is installed on the outside of the rehabilitation instrument body (1). Multiple movable cavities (9) are symmetrically opened inside the rehabilitation instrument body (1). A first connector (11) is installed on the bottom wall of each movable cavity (9), and each first connector (11) is electrically connected to the rehabilitation instrument body (1). A second connector (13) is slidably connected inside each movable cavity (9). A reset component is installed inside each movable cavity (9), and the reset component pushes the second connector (13) to the opposite side. Each second connector (13) is abutted against the corresponding first connector (11), and a magnetic attraction component is installed between each second connector (13) and the corresponding first connector (11). Each first connector (11) has multiple electrode sockets (18) installed on its bottom surface, and each second connector (13) has multiple electrode pins (16) installed on its bottom surface. Each electrode pin (16) is inserted into the corresponding electrode socket (18). Each second connector (13) has a wire (6) connected to its bottom surface, and an electrode plate (7) is installed at the other end of each wire (6).

2. The flexible magnetic wearable low-frequency rehabilitation device according to claim 1, characterized in that, Each of the magnetic components includes a first permanent magnet (17), and each first permanent magnet (17) is mounted on the bottom surface of the corresponding second connector (13). Each first connector (11) is mounted on the top surface of a second permanent magnet (19), and the bottom magnetic poles of each first permanent magnet (17) are opposite to the top magnetic poles of the corresponding second permanent magnet (19).

3. The flexible magnetic wearable low-frequency rehabilitation device according to claim 2, characterized in that, Each of the reset components includes a cover plate (12), and each cover plate (12) is fixedly installed on the top surface of the corresponding active cavity (9), and one end of each wire (6) passes through the corresponding cover plate (12) and extends outward. A spring (14) is installed on the bottom surface of each cover plate (12), and the other end of each spring (14) is fixedly connected to the top surface of the corresponding second connector (13).

4. The flexible magnetic wearable low-frequency rehabilitation device according to claim 3, characterized in that, Multiple guide rods (10) are installed on the inner wall of each of the active cavities (9), and multiple guide grooves (15) are opened on the outer side of each of the second connectors (13), and each guide rod (10) is slidably connected to the corresponding guide groove (15).

5. The flexible magnetic wearable low-frequency rehabilitation device according to claim 4, characterized in that, Each of the wires (6) has a patch (8) mounted on its outer side, and each patch (8) is made of hydrogel.

6. The flexible magnetic wearable low-frequency rehabilitation device according to claim 1, characterized in that, The outer ring of the belt (2) is fitted with a female Velcro fastener (4), and the inner ring of the belt (2) is fitted with a female Velcro fastener (3).