Acupoint electric stimulation type anti-spasm wrist-hand orthosis

Abstract

The utility model relates to the technical field of medical apparatus and instruments, and provides an acupoint electric stimulation type anti-convulsive wrist hand orthosis, which comprises a palm support, a finger sleeve and a forearm support, the palm support is connected with a baffle extending from the ulnar side to the back of the hand and a first fixing belt for fixing four fingers respectively and independently, the finger sleeve is used for wrapping the thumb tightly, the forearm support is provided with an opening for placing an electrode sheet, the palm support is connected with the finger sleeve through a spring, and the palm support is connected with the forearm support through an elastic band, the modularization and adjustable design of the palm support, the finger sleeve and the forearm support allow different components to be combined and adjusted according to the specific conditions of patients, so that the orthosis can comprehensively cover the wrist and hand parts of the patients, provide overall support and fixation, and meet the needs of the patients at different stages of the recovery period.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an acupoint electrical stimulation type antispasmodic wrist and hand orthosis. Background Technology

[0002] Upper limb muscle spasticity is a common complication in hemiplegic patients following ischemic stroke. It is primarily caused by damage to the corticospinal fibers (extrapyramidal tract), leading to an imbalance between spinal cord inhibition and excitatory input, resulting in excessive muscle stretching. After stroke, the motor inhibition mechanisms within the central nervous system are disrupted, and the coordination between alpha and gamma motor neurons becomes unbalanced, leading to various limb dysfunctions. Common clinical manifestations include joint stiffness, muscle weakness, spasticity, hand edema and pain, and decreased mobility. Clinically, spasticity of the flexor muscles in the upper limbs and extensor muscles in the lower limbs is a prominent feature of this abnormal movement pattern. Due to upper limb dysfunction, hemiplegic patients' wrist and hand motor control is severely affected, leading to dependence on others and significantly impacting their quality of life.

[0003] The recovery period after stroke is the golden time for rehabilitation training. Currently, rehabilitation methods for wrist and hand dysfunction mainly include acupuncture, static traction with orthotics, and electrical stimulation therapy. However, these methods are often used in isolation, lacking comprehensiveness and synergistic effects, leading to unsatisfactory rehabilitation training results and poor patient compliance. Most existing wrist and hand orthotics only provide static fixation and cannot be dynamically adjusted according to the patient's rehabilitation progress. Furthermore, they lack effective integration with treatments such as electrical stimulation, making it difficult to meet the needs of patients at different stages of recovery. Utility Model Content

[0004] The purpose of this invention is to provide an acupoint electrical stimulation type antispasmodic wrist and hand orthosis, which solves the problems of existing wrist and hand orthosis having limited functions and unsatisfactory rehabilitation training effects.

[0005] This utility model is achieved through the following technical solution: an acupoint electrical stimulation type antispasmodic wrist and hand orthosis, including a palm support, a finger sleeve and a forearm support. The palm support is connected to a baffle extending from the ulnar side to the back of the hand and a first fixing strap for independently fixing four fingers. The finger sleeve is used to wrap the thumb tightly. The forearm support has an opening for placing electrode pads. The palm support is connected to the finger sleeve by a spring and to the forearm support by an elastic band.

[0006] Furthermore, a wrist joint hinge is provided on the radial side of the forearm support, with one end of the wrist joint hinge bolted to the forearm support and the other end of the wrist joint hinge bolted to the palm support.

[0007] Furthermore, the palm rest end is provided with a first suspension port corresponding to the position of the four fingers, the finger sleeve end is provided with a second suspension port, one end of the spring is connected to the first suspension port, and the other end of the spring is connected to the second suspension port.

[0008] Furthermore, the palm rest is connected to a second fixation strap that spans the metacarpophalangeal joints to secure the back of the hand.

[0009] Furthermore, the opening positions correspond to the Neiguan acupoint, the wrist flexor muscle, and the palmaris longus muscle, respectively.

[0010] Furthermore, the elastic bands are respectively located on the radial and ulnar sides.

[0011] Furthermore, the baffle is connected to the palm rest via interlocking snaps.

[0012] Furthermore, the elastic band stretches the palm rest in the opposite direction towards the back of the hand.

[0013] This utility model has at least the following advantages and beneficial effects:

[0014] (1) Through the modular and adjustable design of the palm support, finger sleeve and forearm support, different components can be combined and adjusted according to the patient's specific situation, so that the orthosis can fully cover the patient's wrist and hand area, provide all-round support and fixation, and meet the needs of the patient at different stages of recovery.

[0015] (2) By setting the first and second suspension ports and combining them with the spring connection, the thumb can be provided with a suspension force to maintain the functional position of the thumb. This not only helps to prevent thumb spasm, but also provides appropriate resistance through the elasticity of the spring, promoting the thumb's antipalm function training and enhancing the fine motor ability of the hand.

[0016] (3) By opening an opening in the forearm support for placing electrode pads, it is convenient to implement electrical stimulation therapy, directly stimulate relevant acupoints and muscles, inhibit the excitability of spinal motor neurons, reduce the degree of muscle spasm, and at the same time promote the active contraction of muscles and functional recovery. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0018] Figure 2 This is a top view of an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0019] Figure 3 This is a top view of the palm support in an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0020] Figure 4This is a top view of another form of the palm support in an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the finger sleeve in an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0022] Figure 6 The forearm support in an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model is shown in the following side view.

[0023] Figure 7 This is a top view of the forearm support in an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 1 of this utility model.

[0024] Figure 8 This is a schematic diagram of the structure of an acupoint electrical stimulation type antispasmodic wrist and hand orthosis provided in Embodiment 2 of this utility model.

[0025] Reference numerals: 1-palm support, 10-connecting hole, 11-baffle, 12-first fixing strap, 13-second fixing strap, 2-finger sleeve, 3-forearm support, 30-opening, 4-spring, 5-elastic band, 6-wrist joint hinge. Detailed Implementation

[0026] The specific implementation method is described below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figures 1 to 7As shown in this embodiment, an acupoint electrical stimulation type antispasmodic wrist and hand orthosis is disclosed. Its main structure includes a palm support 1, finger sleeves 2, and a forearm support 3. The palm support 1 is connected to a baffle 11 extending from the ulnar side to the back of the hand and a first fixing strap 12 for independently fixing four fingers. The finger sleeve 2 is used to wrap the thumb tightly. The forearm support 3 has an opening 30 for placing electrode pads. The palm support 1 is connected to the finger sleeve 2 via a spring 4, and to the forearm support 3 via an elastic band 5. Through the modular and adjustable design of the palm support 1, finger sleeves 2, and forearm support 3, different components can be combined and adjusted according to the patient's specific condition, allowing the orthosis to fully cover the patient's wrist and hand area, providing comprehensive support and fixation, and meeting the patient's needs at different stages of recovery. Specifically, the palm support 1 has multiple connecting holes 10 for the first fixing strap 12 to repeatedly pass through. The first fixing strap 12 is connected end-to-end with Velcro, and passes back and forth through the connecting holes 10 of the palm support 1 to individually fix four fingers, allowing each finger to be slightly flexed and separated. The baffle 11 conforms to the curve from the ulnar side to the back of the hand, enhancing stability and strengthening the antispasmodic effect. The baffle 11 and the first fixing strap on the palm support 1 effectively separate and fix the four fingers, preventing excessive flexion during finger spasms and maintaining the functional position of the fingers. The finger sleeve 2 is used to tightly wrap the thumb, ensuring the stability and functionality of the thumb. The forearm support 3 has a slot for easy insertion of the forearm, and the forearm support 3 is fixed to the arm by nylon Velcro. The opening 30 on the forearm support 3 is designed to facilitate the placement of electrode pads, which, combined with electrical stimulation therapy, further enhance the antispasmodic effect.

[0029] Furthermore, in a specific implementation, the palm support 1 provided in this embodiment of the invention has a first suspension port at the position corresponding to the four fingers, and the finger sleeve 2 has a second suspension port at its end. One end of the spring 4 is connected to the first suspension port, and the other end of the spring 4 is connected to the second suspension port. The first and second suspension ports, combined with the spring 4, provide a suspension force for the thumb, maintaining its functional position. This design not only helps prevent thumb spasms but also provides appropriate resistance through the elasticity of the spring 4, promoting thumb opposition function training and enhancing fine motor skills.

[0030] Furthermore, in a specific implementation, the palm support 1 provided in this embodiment of the invention is connected to a second fixing strap 13 that spans the metacarpophalangeal joint for fixing the back of the hand. The second fixing strap 13 spans the metacarpophalangeal joint, further fixing the back of the hand and enhancing the stability of the orthosis. Simultaneously, it achieves an anti-spasm effect, helping to prevent abnormal hand movements during spasms, maintaining the functional position of the hand, and reducing pressure of the orthosis on the hand skin, thus improving wearing comfort. In addition, when the spasm weakens and movement is possible, the first fixing strap 12 can be removed to form a palm support plate, achieving a dual-purpose orthosis.

[0031] Furthermore, in specific implementations, the openings 30 provided in this embodiment correspond to the Neiguan acupoint, the wrist flexor muscle, and the palmaris longus muscle, respectively. This facilitates the placement of electrode pads and the implementation of electrical stimulation therapy. This design can directly stimulate relevant acupoints and muscles, inhibit the excitability of spinal motor neurons, reduce the degree of muscle spasm, and simultaneously promote active muscle contraction and functional recovery.

[0032] Furthermore, in specific implementations, the elastic band 5 provided in this embodiment of the invention is respectively disposed on the radial and ulnar sides. This allows for even distribution of tension, maintaining the wrist joint in a dorsiflexion position. This design not only helps prevent excessive flexion of the wrist joint but also provides appropriate resistance through the elasticity of the elastic band 5, promoting active flexion and extension training of the wrist joint and enhancing the strength and coordination of the wrist muscles. Simultaneously, users can replace the elastic band 5 with different intensities according to their needs, improving the adaptability of the device.

[0033] Furthermore, in specific implementations, the baffle 11 provided in this embodiment of the invention is connected to the palm support 1 via a mating snap fastener. This makes the installation and removal of the baffle 11 more convenient and quick. This design not only enhances the stability of the palm support 1 but also allows for adjustments based on the patient's specific condition, improving the adaptability and flexibility of the orthosis.

[0034] Furthermore, in specific implementation, the elastic band 5 provided in this embodiment of the present invention stretches the palm support 1 backward toward the back of the hand. This effectively counteracts the flexion tendency of the palm support 1, maintains the dorsiflexion function of the wrist joint, helps prevent excessive flexion of the wrist joint, promotes active movement training of the wrist joint, enhances the strength and coordination of the wrist muscles, and improves the antispasm effect of the orthosis.

[0035] Example 2

[0036] like Figure 8 As shown, in this embodiment, the main structure is completely identical to that of Embodiment 1. The difference lies in that a wrist joint hinge 6 is provided on the radial side of the forearm support 3. One end of the wrist joint hinge 6 is bolted to the forearm support 3, and the other end is bolted to the palm support 1. Specifically, the wrist joint hinge 6 consists of two thin strips hinged together. The design of the wrist joint hinge 6 enhances the flexibility and stability of the orthosis. By bolting to both the palm support 1 and the forearm support 3, the wrist joint hinge 6 ensures a secure connection between the palm support 1 and the forearm support 3, while allowing the wrist joint to perform flexion and extension movements within a certain range, which helps in the functional recovery and active training of the wrist joint.

Claims

1. An acupoint electrical stimulation type antispasmodic wrist and hand orthosis, characterized in that, Includes palm support (1), finger sleeve (2) and forearm support (3); The palm support (1) is connected to a baffle (11) extending from the ulnar side to the back of the hand and a first fixing strap (12) for independently fixing four fingers. The finger sleeve (2) is used to wrap the thumb tightly. The forearm support (3) has an opening (30) for placing electrode plates. The palm support (1) is connected to the finger sleeve (2) by a spring (4). The palm support (1) is connected to the forearm support (3) by an elastic band (5).

2. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The forearm support (3) is provided with a wrist joint hinge (6) on the radial side. One end of the wrist joint hinge (6) is bolted to the forearm support (3), and the other end of the wrist joint hinge (6) is bolted to the palm support (1).

3. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The palm rest (1) has a first hanging port at the position of each of the four fingers, the finger sleeve (2) has a second hanging port at the end, one end of the spring (4) is connected to the first hanging port, and the other end of the spring (4) is connected to the second hanging port.

4. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The palm rest (1) is connected to a second fixing strap (13) that spans the metacarpophalangeal joints to fix the back of the hand.

5. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The openings (30) are located at the Neiguan acupoint, the wrist flexor muscle, and the palmaris longus muscle, respectively.

6. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The elastic band (5) is respectively located on the radial side and the ulnar side.

7. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The baffle (11) is connected to the palm rest (1) by a mating snap fastener.

8. The acupoint electrical stimulation type antispasmodic wrist and hand orthosis according to claim 1, characterized in that, The elastic band (5) stretches the palm support (1) in the direction of the back of the hand.

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