Finger seam electrode and hand function rehabilitation training device

Abstract

The finger seam electrode comprises an elastic finger seam clamping block and an electric conductor, the elastic finger seam clamping block is hollow and can be clamped in a finger seam through the elasticity of the elastic finger seam clamping block, and the electric conductor is arranged at the end, facing a finger web, of the elastic finger seam clamping block and used for being attached to the eight-evil acupoint. The utility model further discloses a hand function rehabilitation training device which comprises a pulse generating device, at least one pair of conductive contact pins and at least one pair of finger seam electrodes, one of each pair of conductive contact pins is electrically connected with a positive electrode output interface of the pulse generating device, and the other pair of conductive contact pins is electrically connected with a negative electrode output interface of the pulse generating device. The conductive pins and the finger electrodes are in one-to-one correspondence and are electrically connected in a plugging manner. The finger seam electrode and the hand function rehabilitation training device are convenient to use and store, the finger seam electrode can be tightly attached to the eight-evil acupoint, certain universality is achieved, and the finger seam electrode and the hand function rehabilitation training device can adapt to different hand types.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a finger gap electrode and a hand function rehabilitation trainer. Background Art

[0002] Central nervous disorders, such as stroke or cerebral palsy patients, often present with finger flexion spasm, which hinders the straightening of fingers, resulting in the inability to open the palm voluntarily and the inability to release objects voluntarily after grasping.

[0003] Electrical stimulation therapy is one of the hand function rehabilitation therapies. By applying a certain intensity of low-frequency pulsed current, it stimulates the neuromuscles of the hand joints. For example, the Chinese utility model patent with the publication number CN203943869U discloses a hand function rehabilitation trainer, which includes a glove body. The back part of the glove body is composed of an inner layer and an outer layer made of elastic rubber. An electrical stimulation device for controlling the treatment time and intensity is provided on the glove body. Four electrode patches for surface stimulation are arranged near the corresponding Baxie acupoints in the inner layer, and the electrode patches are connected to the electrical stimulation device through wires. This hand function rehabilitation trainer stimulates the Baxie acupoints through the electrode patches to meet the requirements proposed by the passive movement rehabilitation medical theory, and plays a positive role in improving hand spasm, promoting finger extension, and enhancing the patient's self-care ability.

[0004] However, since the electrode patches are fixed on the inner surface of the glove body, and the glove body is relied on to make the electrode patches fit the back of the hand. Due to the differences in hand shapes of different patients, it is difficult to ensure that the glove body fits each patient's hand. Therefore, there is a problem that the electrode patches do not fit the hand, which affects the electrical stimulation effect. In addition, since the fingers of patients are generally in a state of flexion spasm and the fingers are not flexible, it is difficult to wear the glove. Content of the Utility Model

[0005] One of the purposes of the present utility model is to provide a finger gap electrode that is convenient to wear and has a good fitting effect; the second purpose of the present utility model is to provide a hand function rehabilitation trainer that is convenient to use.

[0006] One of the purposes of the present utility model is achieved through the following technical solutions:

[0007] A finger gap electrode includes an elastic finger gap clamping block and a conductor. The elastic finger gap clamping block is hollow inside and can be clamped in the finger gap through its own elasticity. The conductor is connected to one end of the elastic finger gap clamping block facing the web of the finger, and the conductor is used to fit the Baxie acupoint.

[0008] Preferably, the conductor has a socket for a conductive pin to be inserted therein within the elastic finger gap clamping block and a contact surface exposed from the elastic finger gap clamping block to fit the Baxie acupoint. The elastic finger gap clamping block is provided with a socket corresponding to the socket for the conductive pin to insert the conductive pin.

[0009] Preferably, the contact surface is configured as an outwardly convex curved surface, and the contact surface is inclined from bottom to top towards the finger web.

[0010] Preferably, the elastic finger spacer has inwardly recessed finger positions on both sides.

[0011] Preferably, the elastic finger-seam clip includes a top plate, a bottom plate, and two side plates connected between the top plate and the bottom plate. The top plate has an insertion port. The conductor includes a contact portion and a insertion hole portion. The contact portion obliquely covers one end of the two side plates, and the side of the contact portion facing away from the side plate is the contact surface. The insertion hole portion is connected to the side of the contact portion facing the side plate and is engaged between the two side plates. The insertion hole portion has a corresponding insertion hole.

[0012] Preferably, the distance between the two side plates gradually increases from the end closer to the web to the end farther from the web.

[0013] Preferably, the conductor further includes a reinforcing portion connected between the contact portion and the socket portion.

[0014] Preferably, the elastic finger gap clip is made of an elastic insulating material, and the conductor is made of an elastic conductive material.

[0015] Preferably, the elastic finger gap clip and the conductive body are integrally injection molded or detachably connected.

[0016] Preferably, it also includes a conductive gel patch adhered to the contact surface.

[0017] The second objective of this utility model is achieved through the following technical solution:

[0018] A hand function rehabilitation training device includes: a pulse generator, at least one pair of conductive pins, and at least one pair of finger gap electrodes of this invention. One of the conductive pins in each pair is electrically connected to the positive output interface of the pulse generator, and the other is electrically connected to the negative output interface of the pulse generator. The conductive pins correspond one-to-one with the finger gap electrodes and are plugged and unplugged for electrical connection.

[0019] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0020] (1) The finger gap electrode of this utility model is easy to use and store, and has a certain degree of universality. It can be adapted to different hand shapes and finger gaps of different sizes. The conductor can fit closely with the Baxie acupoint, and the electrical stimulation effect is good.

[0021] (2) The hand function rehabilitation training device of this utility model has the finger gap electrode of this utility model. The finger gap electrode can be directly placed between two fingers to electrically stimulate the eight evil points. It is convenient to use and saves time and effort. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the finger gap electrode in Example 1.

[0023] Figure 2 This is a front view schematic diagram of the finger gap electrode in Embodiment 1.

[0024] Figure 3 This is an isometric sectional view of the finger-slot electrode in Example 1.

[0025] Figure 4 and Figure 5 This is a schematic diagram of the exploded structure of the finger-slot electrode in Example 1.

[0026] Figure 6 This is an instruction diagram for the use of the finger gap electrode in Example 1.

[0027] Figure 7 This is a three-dimensional structural diagram of the hand function rehabilitation training device in Example 2.

[0028] Among them: 1. Finger gap electrode; 11. Elastic finger gap block; 111. Insertion port; 112. Finger position; 113. Top plate; 114. Bottom plate; 115. Side plate; 12. Conductor; 121. Insertion hole; 122. Contact surface; 123. Contact part; 124. Insertion part; 125. Reinforcing part; 2. Pulse generating device; 3. Conductive pin; 4. Finger. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1-6 As shown, the finger gap electrode 1 in this embodiment includes an elastic finger gap retainer 11 and a conductor 12. The elastic finger gap retainer 11 is hollow, and the conductor 12 is connected to the end of the elastic finger gap retainer 11 facing the finger web. The elastic finger gap retainer 11, through its own elasticity and internal cavity, can be stably positioned between two adjacent fingers 4. This provides wide applicability, adapting to different hand sizes and finger gaps of varying sizes. Furthermore, it ensures that the conductor 12 makes close contact with the Baxie acupoints, guaranteeing the effectiveness of electrical stimulation and improving its effect.

[0032] In this embodiment, the conductor adopts a pin-based power supply design. The conductor 12 has a plug hole 121 located inside the elastic finger gap block 11 for the conductive pin 3 to be inserted, and a contact surface 122 exposed in the elastic finger gap block 11 to fit the finger web. The elastic finger gap block 11 has a socket 111 corresponding to the plug hole 121 for the conductive pin 3 to be inserted.

[0033] The Eight Evil Points are located at the junction of the red and white skin behind the webbed fingers. The webbed fingers are soft and have sufficient width and depth. In palmar view, normal webbed fingers are U-shaped, located between the proximal interphalangeal crease and the distal palmar crease; in dorsal view, the webbed fingers are U-shaped or V-shaped, with the distal skin edge located between the metacarpal head and the proximal interphalangeal joint. Except for the web between the thumb and index finger, the webbed fingers of the 2nd to 4th fingers form a 45° slope from the metacarpal head to the distal, palmar side, with the skin loose on the dorsal side and taut on the palmar side. When the fingers are spread, the webbed fingers are hourglass-shaped.

[0034] Therefore, in order to further improve the tightness of the contact surface 122 of the conductor 12 and the Baxie acupoint, in this embodiment, the contact surface 122 of the conductor 12 is configured as an outwardly convex curved surface, and the contact surface 122 is inclined from bottom to top towards the finger web, so as to improve the fit between the contact surface 122 and the finger web and ensure that the contact surface 122 is tightly attached to the Baxie acupoint.

[0035] In order to improve the stability of the finger gap electrode 1 in the finger gap, the elastic finger gap block 11 of this embodiment has inwardly recessed finger positions 112 on both sides to lock the finger gap electrode 1, so as to avoid the elastic finger gap block 11 not being worn properly and affecting the tightness of the fit, and also to improve the user's wearing comfort, so that the finger gap electrode 1 can be fixed between two fingers 4 effortlessly.

[0036] The elastic finger gap clip 11 in this embodiment is made of an elastic insulating material, such as silicone or rubber. The conductor 12 can be made of a conductive metal or an elastic conductive material, such as conductive silicone. It is preferable to use an elastic conductive material to make the conductor 12, so as to improve the tightness of its fit with the eight acupoints and improve the user's grip comfort.

[0037] Specifically, the elastic finger gap clip 11 in this embodiment includes a top plate 113, a bottom plate 114, and two side plates 115 connected between the top plate 113 and the bottom plate 114. The top plate 113 has an insertion slot 111. Since the two fingers are open in a V-shape, in order to fit the fingers 4 on both sides and improve the comfort of holding the finger gap electrode 1, the distance a between the two side plates 115 in this embodiment gradually increases from the end closer to the finger web to the end farther away from the finger web.

[0038] The conductor 12 includes a contact portion 123, a socket portion 124, and a reinforcing portion 125. The contact portion 123 is obliquely covered at one end of the two side plates 115. The side of the contact portion 123 facing away from the side plate 115 is the contact surface 122. The socket portion 124 is connected to the side of the contact portion 123 facing the side plate 115 and is locked between the two side plates 115. The socket portion 124 has a plug hole 121. The reinforcing portion 125 is connected between the contact portion 123 and the socket portion 124 to enhance the connection strength between the contact portion 123 and the socket portion 124.

[0039] The elastic finger gap clip 11 and the conductor 12 can be integrally injection molded or detachably connected, such as by snap-fit. Detachable connection facilitates the replacement of damaged parts and reduces maintenance costs.

[0040] In another preferred embodiment of this utility model, the finger gap electrode 1 further includes a conductive gel patch pasted on the contact surface 122. The conductive gel patch can increase the current conduction effect, thereby better stimulating the Baxie acupoint.

[0041] Example 2

[0042] Reference Figure 7 The hand function rehabilitation trainer of this embodiment includes a pulse generator 2, two pairs of conductive pins 3, and two pairs of finger-space electrodes 1 as described in Embodiment 1. One of each pair of conductive pins 3 is electrically connected to the positive output interface of the pulse generator 2 via a wire, and the other is electrically connected to the negative output interface of the pulse generator 2 via a wire. The finger-space electrodes 1 correspond one-to-one with the conductive pins 3. It can be understood that the Eight Evil Points are located on the back of the hand, between the 1st to 5th fingers, at the junction of the red and white flesh behind the web of the fingers, with 4 points on each hand. The number of pairs of conductive pins 3 and finger-space electrodes 1 in this embodiment can be increased or decreased according to actual needs, and the number used during electrotherapy can also be adjusted according to actual needs.

[0043] In use, the finger gap electrode 1 is first inserted into each finger gap, then the conductive pin 3 is inserted into the finger gap electrode 1, and the pulse generator 2 is activated to perform electrical stimulation therapy. The pulse generator 2 generates electrical stimulation pulses, which are transmitted to the finger gap electrode 1 through the conductive pin 3, and then transmitted to the eight acupoints through the finger gap electrode 1 to electrically stimulate the eight acupoints, thereby achieving a therapeutic effect.

[0044] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A finger-slot electrode, characterized in that, include: The elastic finger gap holder (11) is hollow inside and can be elastically locked in the finger gap. A conductor (12) is connected to the end of the elastic finger gap block (11) facing the finger web, and the conductor (12) is used to fit the eight acupoints.

2. The finger gap electrode according to claim 1, characterized in that, The conductor (12) has a plug hole (121) located inside the elastic finger gap block (11) for inserting the conductive pin (3), and a contact surface (122) exposed in the elastic finger gap block (11) to fit the eight acupoints; the elastic finger gap block (11) has a socket (111) corresponding to the plug hole (121) for inserting the conductive pin.

3. The finger gap electrode according to claim 2, characterized in that, The contact surface (122) is configured as an outwardly convex curved surface; the contact surface (122) is inclined from bottom to top towards the webbed fingers.

4. The finger gap electrode according to claim 3, characterized in that, The elastic finger gap block (11) has inwardly recessed finger positions (112) on both sides.

5. The finger gap electrode according to claim 1, characterized in that, The elastic finger gap clip (11) includes: a top plate (113), a bottom plate (114), and two side plates (115) connected between the top plate (113) and the bottom plate (114). The top plate (113) has an insertion slot (111). The conductor (12) includes a contact portion (123) and a socket portion (124). The contact portion (123) is obliquely covered at one end of the two side plates (115). The side of the contact portion (123) facing away from the side plate (115) is the contact surface (122). The socket portion (124) is connected to the side of the contact portion (123) facing the side plate (115) and is locked between the two side plates (115). The socket portion (124) has a plug hole (121) corresponding to the socket (111).

6. The finger gap electrode according to claim 5, characterized in that, The distance between the two side plates (115) gradually increases from the end closer to the web to the end further away from the web.

7. The finger gap electrode according to claim 5, characterized in that, The conductor (12) further includes a reinforcing portion (125) connected between the contact portion (123) and the socket portion (124).

8. The finger gap electrode according to any one of claims 1 to 7, characterized in that, The elastic finger-locking block (11) is made of an elastic insulating material, and the conductor (12) is made of an elastic conductive material; The elastic finger gap clip (11) and the conductor (12) are integrally injection molded or detachably connected.

9. The finger gap electrode according to any one of claims 2 to 7, characterized in that, It also includes a conductive gel patch that is adhered to the contact surface (122).

10. A hand function rehabilitation training device, characterized in that, include: A pulse generating device (2), at least one pair of conductive pins (3) and at least one pair of finger gap electrodes (1) as described in any one of claims 1 to 9; One of each pair of conductive pins (3) is electrically connected to the positive output interface of the pulse generator (2), and the other is electrically connected to the negative output interface of the pulse generator (2). The conductive pins (3) correspond one-to-one with the finger gap electrodes (1) and are plugged and unplugged for electrical connection.

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