Upper limb muscle rehabilitation training device based on electrical stimulation

Abstract

The present invention discloses an upper limb muscle rehabilitation training device based on electrical stimulation induction, comprising: a first main body, the first main body comprising a forearm section, a wrist section, and a palm section, the forearm section and the palm section both being provided with stimulation electrodes, the forearm section being connected to the wrist section, and the wrist section being connected to the palm section; and a second main body, the second main body corresponding to the forearm section and provided with stimulation electrodes; the first main body and the second main body being hinged, and a locking mechanism being provided between the first and second main bodies, the locking mechanism being used to lock the open and closed state between the first and second main bodies. The upper limb muscle rehabilitation training device disclosed in the present invention can induce coordinated active contraction during training, enabling the hand to complete coordinated grasping and stretching movements, thereby promoting the completion of training movements, maintaining neuromuscular excitability, and preventing or delaying muscle atrophy.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an upper limb muscle rehabilitation training device based on electrical stimulation. Background Art

[0002] Stroke, also known as a stroke or cerebrovascular accident, is an acute cerebrovascular disease caused by a sudden rupture of a cerebral blood vessel or a blockage that prevents blood flow to the brain, leading to brain damage. Complications associated with neurological damage from acute stroke or C4-7 spinal cord injury can lead to motor impairments in the upper and lower limbs, facial muscles, and the lower part of the tongue. This manifests as an inability for muscles to contract voluntarily, leading to the inability to perform certain movements, such as grasping and reaching with the upper limbs. In a normal person, when a muscle contracts, an action potential signal is generated by the central nervous system, transmitted to the peripheral nerves, and then transmitted through synapses to the muscles that are to contract. However, in patients with stroke or complications associated with neurological damage from C4-7 spinal cord injury, the signal cannot be transmitted to the corresponding muscle groups due to the disruption of central nervous system pathways, resulting in the inability to achieve normal movement.

[0003] Functional electrical stimulation uses low-frequency current pulses to stimulate muscles that have lost nerve control, causing muscle contraction, promoting nerve regeneration and recovery of conduction function, and helping to restore the function of the affected limb. The existing functional electrical stimulation structure is relatively simple and can only complete simple muscle stimulation movements, and cannot help the upper limbs complete grasping and stretching movements.

[0004] Based on the above-mentioned defects, the present invention discloses an upper limb muscle rehabilitation training device based on electrical stimulation induction, which is used to solve the problems existing in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide an upper limb muscle rehabilitation training device based on electrical stimulation to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an upper limb muscle rehabilitation training device based on electrical stimulation, comprising: a first main body, the first main body comprising a forearm segment, a wrist segment, and a palm segment, the forearm segment, the wrist segment, and the palm segment are all provided with stimulation electrodes, the forearm segment is connected to the wrist segment, and the wrist segment is connected to the palm segment; and a second main body, the second main body corresponds to the forearm segment, and the second main body is provided with a stimulation electrode; the first main body and the second main body are hinged, and a locking mechanism is provided between the first main body and the second main body, and the locking mechanism is used to lock the open and closed state between the first main body and the second main body.

[0007] Preferably, the rehabilitation training device further comprises a swivel, one end of the swivel is hinged to the first main body portion, and the other end of the swivel is connected to the second main body portion.

[0008] Preferably, the locking mechanism includes: a rack, which is arranged on the first main body; and a release swivel, which is hinged to the second main body, and the release swivel includes teeth arranged at one end thereof, and the teeth correspond to the rack.

[0009] Preferably, the forearm segment includes: a flexor base shell; and a flexor face shell, which is located on a side of the flexor base shell close to the second main body portion, and the flexor face shell is connected to the flexor base shell; and a flexor proximal adapter, which is located on a side of the flexor face shell away from the flexor base shell, and the flexor proximal adapter is connected to the flexor face shell; and a flexor distal adapter, which is located on a side of the flexor face shell away from the flexor base shell, and the flexor distal adapter is connected to the flexor face shell, and the flexor distal adapter and the flexor proximal adapter are arranged side by side; and a flexor proximal conductor, which is located at one end of the flexor proximal adapter away from the flexor face shell, and the flexor proximal conductor is connected to the flexor proximal adapter; and a flexor distal conductor, which is located at one end of the flexor distal adapter away from the flexor face shell, and the flexor distal conductor is connected to the flexor distal adapter.

[0010] Preferably, a cavity is formed between the flexor bottom shell and the flexor surface shell, and a stimulator mainboard and a battery are arranged in the cavity.

[0011] Preferably, the wrist segment includes: a wrist base shell, which is located between the forearm segment and the palm segment; and a wrist adapter, which is located on a side of the wrist base shell close to the second body portion and connected to the wrist base shell.

[0012] Preferably, the palm segment includes: a thenar base shell, which is located at one end of the wrist segment away from the forearm segment; a thenar adapter, which is arranged in parallel with the wrist adapter and connected to the thenar base shell; and a thenar conductor, which is located on a side of the thenar adapter away from the thenar base shell and connected to the thenar adapter.

[0013] Preferably, the flexor bottom shell, the wrist bottom shell and thenar bottom shell are integrally formed, and together form the first body bottom shell, which is an S-shaped structure.

[0014] Preferably, the second main body portion includes: an extensor middle shell; and an extensor bottom shell, which is located on a side of the extensor middle shell close to the first main body portion, and the extensor bottom shell is connected to the extensor middle shell; and an extensor adapter, which is located on a side of the extensor bottom shell close to the first main body portion, and the extensor adapter is connected to the extensor bottom shell; and an extensor proximal conductor, which is located on a side of the extensor adapter close to the first main body portion, and the extensor proximal conductor is connected to the extensor adapter; and an extensor distal conductor, which is located on a side of the extensor adapter close to the first main body portion, and the extensor distal conductor is connected to the extensor adapter.

[0015] Preferably, a columnar protrusion is provided on the extensor bottom shell, a first through hole is provided on the extensor middle shell, a second through hole is provided on the swivel, a silicone seat is sleeved on the columnar protrusion, the silicone seat passes through the first through hole and the second through hole in sequence, and a stop is provided on the silicone seat so that the second through hole abuts against the stop.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The upper limb muscle rehabilitation training device based on electrical stimulation disclosed in the present invention has a first main body and a second main body that can cover the extensor digitorum muscles, flexor digitorum muscles, and thenar eminence of the human upper limb. By electrically stimulating the extensor digitorum muscles, the abductor pollicis brevis muscles, and the extensor pollicis longus muscles of the flexor digitorum muscles, the hand can be grasped and extended. That is, coordinated active contractions can be induced during the training process to promote the completion of the training movements, maintain neuromuscular excitability, and prevent or delay muscle atrophy. For stroke patients or patients with complications associated with nerve damage caused by C4-7 spinal cord injury, coordinated training can be performed. Compared with traditional single-organ stimulation, it is more beneficial for the recovery of patients' hand function.

[0018] 2. The upper limb muscle rehabilitation training device based on electrical stimulation disclosed in the present invention has a first main body and a second main body hinged, and a locking mechanism is provided between the first main body and the second main body, so that the rehabilitation training device can be adapted to different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 is a stereoscopic view of the left limb of the upper limb muscle rehabilitation training device based on electrical stimulation in an embodiment of the present invention;

[0021] Figure 2 The embodiment of the present invention is based on the electrical stimulation induced upper limb muscle rehabilitation training device of the right limb stereo Figure 1 ;

[0022] Figure 3 This is an exploded view of the left limb of the upper limb muscle rehabilitation training device based on electrical stimulation in an embodiment of the present invention;

[0023] Figure 4 is an exploded view of a stimulator according to an embodiment of the present invention;

[0024] Figure 5 The embodiment of the present invention is based on the electrical stimulation induced upper limb muscle rehabilitation training device of the right limb stereo Figure 2 ;

[0025] In the figure: first body 1; forearm section 2; wrist section 3; palm section 4; second body 5; locking mechanism 6; swivel 7; rack 8; release swivel 9; flexor bottom shell 10; flexor face shell 11; flexor proximal adapter 12; flexor distal adapter 13; flexor proximal conductor 14; flexor distal conductor 15; stimulator main board 16; battery 17; wrist bottom shell 18; wrist adapter 19; thenar bottom shell 20; thenar adapter Adapter 21; thenar conductor 22; first body bottom shell 23; extensor middle shell 24; extensor bottom shell 25; extensor adapter 26; extensor proximal conductor 27; extensor distal conductor 28; column boss 29; first through hole 30; second through hole 31; silicone seat 32; stop 33; first threaded column groove 34; threaded through hole 35; second threaded column groove 36; through hole 37; stimulator 38; stimulator surface shell 39; stimulator bottom shell 40. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example: This example provides an optimal solution for an upper limb muscle rehabilitation training device induced by electrical stimulation. Specifically, it uses electrodes to stimulate muscles to achieve grasping and stretching movements of the upper limb hands, so as to improve complications associated with nerve damage caused by stroke or C4-7 spinal cord injury, thereby preventing or delaying muscle atrophy in patients. Based on this, this rehabilitation training device needs to place the stimulation electrodes at the corresponding muscles to be stimulated, such as Figures 1 and 2The rehabilitation training device includes a first main body 1, wherein the first main body 1 includes a forearm segment 2, a wrist segment 3, and a palm segment 4. The forearm segment 2 and the palm segment 4 are both provided with stimulation electrodes. The forearm segment 2 is connected to the wrist segment 3, and the wrist segment 3 is connected to the palm segment 4. The forearm segment 2 corresponds to the flexor digitorum of the forearm, and the stimulation electrode of the forearm segment 2 is used to stimulate the contraction of the flexor digitorum muscle group. The palm segment 4 corresponds to the thenar eminence of the palm, and the stimulation electrode of the palm segment 4 is used to stimulate the contraction of the abductor pollicis brevis muscle. The wrist segment 3 connects the forearm segment 2 and the palm segment 4, so that the three become one; at the same time, the rehabilitation training device also includes a second main body 5, which corresponds to the forearm segment 2, that is, the second main body 5 acts on the forearm like the forearm segment 2, and the second main body 5 corresponds to the extensor digitorum muscle group of the forearm. The second main body 5 is provided with a stimulation electrode for stimulating the contraction of the extensor digitorum muscle group.

[0028] Further, such as Figures 1 and 2 The rehabilitation training device is set as an integrated structure to facilitate its picking up and use. Specifically, a hinge is set between the first body part 1 and the second body part 5. Specifically, the hinge between the first body part 1 and the second body part 5 is realized by a swivel 7, wherein one end of the swivel 7 is hinged to the first body part 1, and the other end of the swivel 7 is connected to the second body part 5. In this way, there is a certain distance between the first body part 1 and the second body part 5 when they are opened, which is more in line with the physiological structure of the forearm.

[0029] Further, such as Figures 1 and 2 In order for the stimulation electrodes to effectively stimulate each muscle, it is necessary to form a relatively stable and tight fit between the stimulation electrodes and the muscles. Based on this, a locking mechanism 6 is also provided between the first main body portion 1 and the second main body portion 5. The locking mechanism 6 is used to lock the opening and closing state between the first main body portion 1 and the second main body portion 5. In this way, the rehabilitation training device can form a relatively stable relationship with the upper limb, which is conducive to the action of the stimulation electrodes.

[0030] Further, such as Figure 2 The locking mechanism 6 specifically includes a rack 8, which is fixed to the first main body portion 1, and also includes a release swivel 9, which is hinged to the second main body portion 5. The release swivel 9 includes teeth arranged at one end thereof, and the teeth correspond to the rack 8. When the first main body portion 1 and the second main body portion 5 are adjusted to a suitable opening angle, the teeth of the release swivel 9 are engaged with the rack 8, so that the shape of the first main body portion 1 and the second main body portion 5 can be locked.

[0031] Further, such as Figure 3 The forearm section 2 includes a flexor bottom shell 10 and a flexor surface shell 11. The flexor surface shell 11 is located on a side of the flexor bottom shell 10 close to the second body portion 5, and the flexor surface shell 11 is snap-fitted and connected to the flexor bottom shell 10. The flexor bottom shell 10 and the flexor surface shell 11 together form a support structure for the forearm section 2.

[0032] like Figure 3 At the same time, the forearm segment 2 also includes a flexor proximal adapter 12 and a flexor proximal conductor 14, the flexor proximal adapter 12 is located on the side of the flexor surface shell 11 away from the flexor bottom shell 10, and the flexor proximal adapter 12 is snap-fitted with the flexor surface shell 11, the flexor proximal conductor 14 is located at one end of the flexor proximal adapter 12 away from the flexor surface shell 11, and the flexor proximal conductor 14 is snap-fitted with the flexor proximal adapter 12, wherein the flexor proximal adapter 12 is electrically connected to the stimulator 38, for converting the stimulation current generated by the stimulator 38 into a stimulation current suitable for the forearm, and conducting the stimulation current to the flexor proximal conductor 14, generating electrical stimulation to the flexor muscles through the flexor proximal conductor 14, as point A stimulation (such as Figure 5 As shown), the adapter is a prior art and will not be described in detail here;

[0033] like Figure 3 At the same time, the forearm segment 2 also includes a flexor distal adapter 13 and a flexor distal conductor 15, the flexor distal adapter 13 is located on the side of the flexor face shell 11 away from the flexor bottom shell 10, and the flexor distal adapter 13 is connected to the flexor face shell 11, the flexor distal adapter 13 and the flexor proximal adapter 12 are arranged side by side, and the flexor distal conductor 15 is located at one end of the flexor distal adapter 13 away from the flexor face shell 11, and the flexor distal conductor 15 is connected to the flexor distal adapter 13, wherein the flexor distal adapter 13 is electrically connected to the stimulator 38, for converting the stimulation current generated by the stimulator 38 into a stimulation current suitable for the forearm, and conducting the stimulation current to the flexor distal conductor 15, generating electrical stimulation to the flexor muscles through the flexor distal conductor 15, as point B stimulation (such as Figure 5 As shown in FIG, the adapter is a prior art and will not be described in detail here.

[0034] Further, such as Figure 3 A cavity is formed between the flexor bottom shell 10 and the flexor surface shell 11, and a stimulator mainboard 16 and a battery 17 are arranged in the cavity, wherein the stimulator mainboard 16 and the stimulator 38 are electrically connected for transmitting data to the stimulator 38, and the battery 17 and the stimulator mainboard 16 are electrically connected for providing electrical energy.

[0035] Further, such as Figure 3 The wrist segment 3 includes a wrist bottom shell 18 and a wrist adapter 19. The wrist bottom shell 18 is located between the forearm segment 2 and the palm segment 4. The wrist adapter 19 is located on the side of the wrist bottom shell 18 close to the second main body 5 and is snap-connected with the wrist bottom shell 18. The wrist adapter 19 is preferably made of silicone to avoid direct contact between the wrist and the plastic wrist bottom shell 18, thereby ensuring the comfort of the wrist.

[0036] Further, such as Figure 3 The palm segment 4 includes a thenar base shell 20, which is located at the end of the wrist segment 3 away from the forearm segment 2, and a thenar adapter 21, which is arranged in parallel with the wrist adapter 19 and connected to the thenar base shell 20, and a thenar conductor 22, which is located on the side of the thenar adapter 21 away from the thenar base shell 20, and the thenar conductor 22 is snap-fitted to the thenar adapter 21, wherein the thenar adapter 21 is electrically connected to the stimulator 38, and is used to convert the stimulation current generated by the stimulator 38 into a stimulation current suitable for the palm, and conduct the stimulation current to the thenar conductor 22, so as to generate electrical stimulation to the thenar through the thenar conductor 22, as point C stimulation (such as Figure 5 As shown in FIG, the adapter is a prior art and will not be described in detail here.

[0037] Furthermore, in order to facilitate production, Figure 3 The flexor bottom shell 10 , the wrist bottom shell 18 , and thenar bottom shell 20 are integrally formed, and together form the first body bottom shell 23 .

[0038] Further, such as Figure 3 The first body bottom shell 23 is an S-shaped structure, so that one end of the integrally formed first body bottom shell 23 extends from the wrist to the palm, and the other end extends from the wrist to the forearm.

[0039] Further, such as Figure 3 A first threaded column groove 34 is provided on the first body bottom shell 23, and a threaded through hole 35 is provided on the rack 8, wherein screws are provided in the first threaded column groove 34 and the threaded through hole 35, so that the rack 8 can be fixed to the first body bottom shell 23.

[0040] Further, such as Figure 3 A second threaded column groove 36 is provided on the bottom shell 23 of the first body, and a through hole 37 is provided at one end of the swivel 7. The screw is inserted into the through hole and screwed into the second threaded column groove 36 to rotate the swivel 7 and the first body bottom shell 23.

[0041] Further, such as Figure 3 The second body portion 5 includes an extensor middle shell 24 and an extensor bottom shell 25. The extensor bottom shell 25 is located on the side of the extensor middle shell 24 close to the first body portion 1, and the extensor bottom shell 25 is snap-fitted and connected to the extensor middle shell 24. In this way, the extensor middle shell 24 and the extensor bottom shell 25 together form a supporting structure of the forearm segment 2 at the extensor digitorum.

[0042] Further, such as Figure 3The second main body portion 5 also includes an extensor adapter 26, which is located on the side of the extensor bottom shell 25 close to the first main body portion 1, and the extensor adapter 26 is snap-fitted to the extensor bottom shell 25; and an extensor proximal conductor 27, which is located on the side of the extensor adapter 26 close to the first main body portion 1, and the extensor proximal conductor 27 is snap-fitted to the extensor adapter 26; and an extensor distal conductor 28, which is located on the side of the extensor adapter 26 close to the first main body portion 1, and the extensor distal conductor 28 is snap-fitted to the extensor adapter 26, wherein the extensor adapter 26 is electrically connected to the stimulator 38, for converting the stimulation current generated by the stimulator 38 into a stimulation current suitable for the forearm, and conducting the stimulation current to the extensor proximal conductor 27 or the extensor distal conductor 28, so as to generate electrical stimulation to the extensor digitorum through the extensor proximal conductor 27 or the extensor distal conductor 28, as point D stimulation and point E stimulation (such as Figure 5 As shown), the adapter is a prior art and will not be described in detail here.

[0043] Further, such as Figure 3 A column boss 29 is provided on the extensor bottom shell 25, a first through hole 30 is provided on the extensor middle shell 24, a second through hole 31 is provided on the swivel 7, and a silicone seat 32 is sleeved on the column boss 29. The silicone seat 32 passes through the first through hole 30 and the second through hole 31 in sequence, and a stopper 33 is provided on the silicone seat 32, so that the second through hole 31 abuts against the stopper 33, so that the swivel 7 and the second main body 5 are connected. At the same time, the silicone seat 32 has a certain elastic space. When the first main body 1 and the second main body 5 are placed on the upper limb and fixed, the silicone seat 32 gives the second main body 5 a certain amount of activity clearance to prevent the arm from exerting too much reaction force on the rehabilitation training device.

[0044] Further, such as Figure 4 The stimulator 38 includes a stimulator surface shell 39 and a stimulator bottom shell 40, wherein the stimulator surface shell 39 and the stimulator bottom shell 40 are snap-fitted and connected to form a cavity therein, in which a battery and a functional mainboard are arranged.

[0045] The working principle of this invention is as follows: Controlling the stimulation of points D and E allows the four fingers (excluding the thumb) to extend, controlling the stimulation of points A and B allows the four fingers (excluding the thumb) to flex, controlling the stimulation of points C and D allows the thumb to extend, and controlling the stimulation of points B and C allows the thumb to abduct. The coordinated stimulation of points A, B, C, D, and E enables grasping and extending movements of the hand, thereby producing coordinated muscle contraction training.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An upper limb muscle rehabilitation training device based on electrical stimulation, characterized in that: include: a first body portion, the first body portion including a forearm segment, a wrist segment, and a palm segment, the forearm segment and the palm segment both being provided with stimulation electrodes, the forearm segment being connected to the wrist segment, and the wrist segment being connected to the palm segment; and a second body portion, the second body portion corresponding to the forearm segment and provided with a stimulation electrode; The first body portion and the second body portion are hinged, and a locking mechanism is provided between the first body portion and the second body portion, the locking mechanism being used to lock the opening and closing state between the first body portion and the second body portion; The forearm segment includes a flexor bottom shell and a flexor surface shell, wherein the flexor surface shell is located on a side of the flexor bottom shell close to the second body portion, and the flexor surface shell is snap-fittedly connected to the flexor bottom shell, wherein the flexor bottom shell and the flexor surface shell together form a supporting structure of the forearm segment; The forearm segment further includes a flexor proximal adapter and a flexor proximal conductor, the flexor proximal adapter is located on a side of the flexor face shell away from the flexor bottom shell, and the flexor proximal adapter is snap-fitted to the flexor face shell, the flexor proximal conductor is located at one end of the flexor proximal adapter away from the flexor face shell, and the flexor proximal conductor is snap-fitted to the flexor proximal adapter, wherein the flexor proximal adapter is electrically connected to the stimulator, and is used to convert the stimulation current generated by the stimulator into a stimulation current suitable for the forearm, and conduct the stimulation current to the flexor proximal conductor, thereby generating electrical stimulation to the flexor digitorum through the flexor proximal conductor as point A stimulation; The forearm segment also includes a flexor distal adapter and a flexor distal conductor, the flexor distal adapter is located on a side of the flexor face shell away from the flexor bottom shell, and the flexor distal adapter is connected to the flexor face shell, the flexor distal adapter and the flexor proximal adapter are arranged side by side, and the flexor distal conductor is located at one end of the flexor distal adapter away from the flexor face shell, and the flexor distal conductor is connected to the flexor distal adapter, wherein the flexor distal adapter is electrically connected to the stimulator, and is used to convert the stimulation current generated by the stimulator into a stimulation current suitable for the forearm, and conduct the stimulation current to the flexor distal conductor, so as to generate electrical stimulation to the flexor digitorum through the flexor distal conductor as point B stimulation; The palm segment includes a thenar base shell, which is located at an end of the wrist segment away from the forearm segment; a thenar adapter, which is arranged in parallel with the wrist adapter and connected to the thenar base shell; and a thenar conductor, which is located on a side of the thenar adapter away from the thenar base shell and is snap-fitted to the thenar adapter. The thenar adapter is electrically connected to the stimulator and is used to convert a stimulation current generated by the stimulator into a stimulation current suitable for the palm, and transmit the stimulation current to the thenar conductor, thereby generating electrical stimulation to the thenar eminence through the thenar conductor as point C stimulation. The second body portion includes an extensor middle shell and an extensor bottom shell. The extensor bottom shell is located on a side of the extensor middle shell close to the first body portion, and the extensor bottom shell is snap-fitted to the extensor middle shell. In this way, the extensor middle shell and the extensor bottom shell together form a support structure for the forearm segment at the extensor digitorum. The second main body also includes an extensor adapter, which is located on a side of the extensor bottom shell close to the first main body, and the extensor adapter is snap-fitted and connected to the extensor bottom shell; and an extensor proximal conductor, the extensor proximal conductor being located on a side of the extensor adapter close to the first body portion, and the extensor proximal conductor being snap-fittedly connected to the extensor adapter; And the extensor distal conductor, which is located on the side of the extensor adapter close to the first main body, and the extensor distal conductor is snap-connected to the extensor adapter, wherein the extensor adapter is electrically connected to the stimulator, and is used to convert the stimulation current generated by the stimulator into a stimulation current suitable for the forearm, and conduct the stimulation current to the extensor proximal conductor or the extensor distal conductor, and generate electrical stimulation to the extensor digitorum through the extensor proximal conductor or the extensor distal conductor, which serves as point D stimulation and point E stimulation respectively.

2. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 1, characterized in that: The rehabilitation training device further includes a swivel, one end of which is hinged to the first main body, and the other end of which is connected to the second main body.

3. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 2, characterized in that: The locking mechanism comprises: a rack, the rack being disposed on the first body portion; and a release swivel, the release swivel being hinged to the second body portion, the release swivel comprising teeth arranged at one end thereof, the teeth corresponding to the rack.

4. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 1, characterized in that: The wrist segment comprises: a wrist bottom shell, the wrist bottom shell being located between the forearm section and the palm section; and a wrist adapter, wherein the wrist adapter is located on a side of the wrist bottom shell close to the second main body portion and is connected to the wrist bottom shell.

5. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 1, characterized in that: The palm section comprises: Thenar bottom shell, the thenar bottom shell is located at one end of the wrist segment away from the forearm segment; and a thenar adapter, the thenar adapter and the wrist adapter are arranged in parallel, and the thenar adapter The distributor is connected to the bottom shell of the thenar; and a thenar conductor, wherein the thenar conductor is located on a side of the thenar adapter away from the thenar base shell, and the thenar conductor is connected to the thenar adapter.

6. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 5, characterized in that: The flexor bottom shell, the wrist bottom shell, and the thenar bottom shell are integrally formed to form a first body bottom shell, which is an S-shaped structure.

7. The upper limb muscle rehabilitation training device based on electrical stimulation according to any one of claims 2 to 3, characterized in that: The second body portion includes: extensor midshell; and an extensor bottom shell, the extensor bottom shell being located on a side of the extensor middle shell close to the first body portion, and the extensor bottom shell being connected to the extensor middle shell; and an extensor adapter, the extensor adapter being located on a side of the extensor bottom shell close to the first main body portion and connected to the extensor bottom shell; and an extensor proximal conductor, the extensor proximal conductor being located on a side of the extensor adapter close to the first body portion, and the extensor proximal conductor being connected to the extensor adapter; and an extensor distal conductor, wherein the extensor distal conductor is located on a side of the extensor adapter close to the first body portion and is connected to the extensor adapter.

8. The upper limb muscle rehabilitation training device based on electrical stimulation according to claim 7, characterized in that: A columnar protrusion is provided on the extensor bottom shell, a first through hole is provided on the extensor middle shell, a second through hole is provided on the swivel, a silicone seat is sleeved on the columnar protrusion, and the silicone seat passes through the first through hole and the second through hole in sequence, and a stop is provided on the silicone seat so that the second through hole abuts against the stop.

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