A device for reducing static tremor in pronation and supination of a patient's wrist

Abstract

The application discloses a device for reducing pronation-supination static tremor of a patient's wrist, and relates to the technical field of medical equipment. The device solves the problem of the functional neuromuscular stimulation technology for suppressing pronation-supination static tremor of a human wrist. In the application, the SMA spring is stretched and compressed to drive two spiral arms to pull the human forearm to perform pronation-supination action, so that the severe pronation and supination tremor of the wrist of a Parkinson's disease patient is reduced, the blank that there is no tremor suppression device for suppressing wrist tremor along the forearm axial direction is made up, the patient's hand disease is effectively controlled, the two arm bands are controlled in a spiral multi-turn winding mode, the movement mechanism of the human pronator teres muscle and the supinator muscle is met, the patient is more natural in the process of reducing the wrist pronation-supination tremor, the structure is in line with the human joint, the wearing is comfortable, and the daily activities of the patient in the non-disease state are not disturbed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, and particularly relates to a device for relieving pronation and supination static tremor of a patient's wrist. BACKGROUND

[0002] Inhibition of pronation and supination static tremor of a human wrist is one of important research directions of hand rehabilitation, and the static tremor symptom is Parkinson's disease. Parkinson's disease is a typical neuron degenerative disease, and the disease is insidious in onset, slowly progresses, and gradually aggravates. It is the second largest neurodegenerative disease next to senile dementia, and mainly affects the middle-aged and elderly. When Parkinson's disease occurs, the hand will have severe tremor symptoms, and the frequency characteristics are generally 3-6 Hz, so that the patient cannot normally complete various actions in daily life.

[0003] In view of the severe hand tremor caused by Parkinson's disease, the existing treatment method is to use functional neuromuscular stimulation technology to control the contraction characteristics of the patient's arm muscle through an electric pulse signal, but since the electric signal cannot be completely synchronized with the human body nerve, the hand tremor caused by Parkinson's disease cannot be accurately eliminated. SUMMARY

[0004] In view of the problem that the functional neuromuscular stimulation technology for inhibiting pronation and supination static tremor of a human wrist has disadvantages, the purpose of the present application is to provide a device for relieving pronation and supination static tremor of a patient's wrist, so as to play a relieving role on the severe hand tremor of the patient when the disease occurs.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A device for relieving pronation and supination static tremor of a patient's wrist, comprising:

[0007] A wrist guard 1 is worn on the patient's wrist.

[0008] An SMA driving device is worn on the patient's upper arm.

[0009] Two arm bands 2 are spirally wound on the patient's forearm, one end of one arm band 2 is connected with the wrist guard 1 and located at the ulna side of the patient's wrist, one end of the other arm band 2 is connected with the wrist guard 1 and located at the radius side of the patient's wrist, and the other end of each arm band 2 is connected with one SMA driving device, and the SMA driving device is used to drive the arm band 2 to pull the forearm to rotate forward and / or rotate backward.

[0010] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the SMA driving device comprises a SMA spring 4 and a fixing block 5, the upper end of the SMA spring 4 is connected with one of the fixing blocks 5, and the lower end of the SMA spring 4 passes through the round hole 3 of the other fixing block 5 and is connected with the other end of the arm band 2.

[0011] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the device further comprises an arm ring 7, two of the arm rings 7 are worn on the upper arms of the patient, and each of the SMA driving devices is worn on the upper arms of the patient through the two arm rings 7.

[0012] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein two of the mounting grooves are arranged on each of the arm rings 7, the fixing block 5 at the upper end of the SMA spring 4 is arranged in one of the mounting grooves of the arm ring 7 below the shoulder joint of the patient, and the fixing block 5 at the lower end of the SMA spring 4 is arranged in one of the mounting grooves of the arm ring 7 above the elbow joint of the patient.

[0013] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the SMA driving device further comprises a rubber sleeve 6, each of the rubber sleeves 6 is arranged on one of the SMA springs 4, one end of the rubber sleeve 6 abuts against one of the fixing blocks 5, and the other end of the rubber sleeve 6 abuts against the other fixing block 5.

[0014] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the device further comprises a grafting adhesive and an anti-skid pad.

[0015] An anti-skid pad is arranged between the inner side of the wrist guard 1 and the skin of the arm, and the anti-skid pad and the wrist guard 1 are adhered by the grafting adhesive.

[0016] An anti-skid pad is arranged between the inner side of each of the arm rings 7 and the skin of the arm, and the anti-skid pad and the arm ring 7 are adhered by the grafting adhesive.

[0017] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the winding directions of the two arm bands 2 around the forearms of the patient are opposite.

[0018] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the material of the anti-skid pad is PVC.

[0019] The device for relieving the wrist internal and external rotation static tremor of a patient, wherein the material of the arm band 2 is nylon.

[0020] The device for reducing the pronation and supination static tremor of the wrist of a patient, wherein each SMA spring 4 of each SMA drive device is in communication with an electric circuit.

[0021] The present application has the following advantages over the prior art:

[0022] (1) In the present application, the SMA spring is stretched and compressed to drive the two spiral arm bands to pull the forearm to perform pronation and supination, effectively reducing the severe pronation and supination tremor of the wrist of a patient with Parkinson's disease, filling the gap that there is no device to suppress the tremor of the wrist along the forearm axis, and effectively controlling the symptoms of the patient's hand.

[0023] (2) In the present application, the two arm bands are wound in a spiral manner to control the forearm, which conforms to the movement mechanism of the pronator teres muscle and the supinator muscle, making the patient more natural in reducing the pronation and supination tremor of the wrist.

[0024] (3) In the present application, the structure is in line with the human joint, comfortable to wear, safe, controllable, light and portable, and does not interfere with the daily activities of the patient in the non-disease state. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0026] Figure 2 is a structural schematic diagram of a wrist guard of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0027] Figure 3 is a wearing schematic diagram of a spiral arm band of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0028] Figure 4 is an installation schematic diagram of a SMA spring of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0029] Figure 5 is an installation schematic diagram of a rubber sleeve of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0030] Figure 6 is a structural schematic diagram of an arm ring of a device for reducing the pronation and supination static tremor of the wrist of a patient.

[0031] Figure 7is a wearing schematic diagram of the SMA driving device of the wrist internal and external rotation static tremor relieving device for patients.

[0032] In the drawings: 1, wrist guard; 2, arm band; 3, round hole; 4, SMA spring; 5, fixed block; 6, rubber sleeve; 7, arm ring. DETAILED DESCRIPTION

[0033] The application will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the application.

[0034] Please refer to Figures 1 to 7 Fig. 1 shows a wrist internal and external rotation static tremor relieving device for patients, which comprises:

[0035] Wrist guard 1, which is worn on the wrist of the patient;

[0036] SMA driving device, which is worn on the upper arm of the patient;

[0037] Arm bands 2, which are spirally wound on the forearm of the patient, one end of one arm band 2 is connected with the wrist guard 1 and located on the ulnar side of the wrist of the patient, one end of the other arm band 2 is connected with the wrist guard 1 and located on the radial side of the wrist of the patient, the other end of each arm band 2 is connected with one SMA driving device, and the SMA driving device is used to drive the arm band 2 to pull the forearm to move in pronation and / or supination.

[0038] Further, in a preferred embodiment, the SMA driving device comprises: SMA spring 4 and fixed block 5, the upper end of the SMA spring 4 is connected with one fixed block 5, and the lower end of the SMA spring 4 passes through the round hole 3 of the other fixed block 5 and is connected with the other end of one arm band 2.

[0039] Further, in a preferred embodiment, it further comprises: arm rings 7, two arm rings 7 are worn on the upper arm of the patient, and each SMA driving device is worn on the upper arm of the patient through the two arm rings 7.

[0040] Further, in a preferred embodiment, two installation grooves are arranged on each arm ring 7, each fixed block 5 located at the upper end of the SMA spring 4 is installed in one installation groove of the arm ring 7 located below the shoulder joint of the patient, and each fixed block 5 located at the lower end of the SMA spring 4 is installed in one installation groove of the arm ring 7 located above the elbow joint of the patient.

[0041] Further, in a preferred embodiment, the SMA driving device further comprises: rubber sleeves 6, each rubber sleeve 6 is wrapped on one SMA spring 4, one end of the rubber sleeve 6 abuts against one fixed block 5, and the other end of the rubber sleeve 6 abuts against the other fixed block 5.

[0042] Further, in a preferred embodiment, further comprising: a grafting glue and a non-slip pad;

[0043] The inner side of the wrist guard 1 is provided with a non-slip pad between the skin of the arm, and the non-slip pad and the wrist guard 1 are adhered by a layer of grafting glue.

[0044] The inner side of each arm ring 7 is provided with a non-slip pad between the skin of the arm, and the non-slip pad and the arm ring 7 are adhered by a layer of grafting glue.

[0045] Further, in a preferred embodiment, the two arm bands 2 are wound in opposite directions around the patient's forearm.

[0046] Further, in a preferred embodiment, the material of the non-slip pad is PVC.

[0047] Further, in a preferred embodiment, the material of the arm band 2 is nylon.

[0048] Further, in a preferred embodiment, the SMA spring 4 of each SMA driving device is in communication with the circuit.

[0049] The above is only a preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application.

[0050] The present application further has the following embodiments based on the above:

[0051] In a further embodiment of the present application, the present application relates to the field of rehabilitation treatment of wrist internal and external rotation resting tremor in humans, mainly for patients with Parkinson's disease, and specifically relates to a device for reducing wrist internal and external rotation resting tremor in patients, comprising two symmetrical spiral arm bands 2 on the forearm, the two arm bands 2 being fixed at the ulnar side and the radial side of the wrist guard 1 respectively, the two arm bands 2 being spirally wound on the forearm and along the forearm until the elbow joint, and the two arm bands 2 being connected to SMA driving devices on the upper arm at the ends.

[0052] In a further embodiment of the present application, the SMA driving device comprises a SMA spring 4, a fixing block 5, and a rubber sleeve 6, the SMA driving device being fixed on the inner and outer sides of the upper arm through the fixing block 5, the SMA driving device being connected and fixed to the arm ring 7 at the elbow joint at the front end, and being connected and fixed to the arm ring 7 at the shoulder joint at the end.

[0053] In a further embodiment of the present application, the present application has the characteristics of simple structure, easy operation, lightness, and good wearing flexibility. During operation, the device can not only effectively counteract the shaking of the two spiral arm bands 2 on the forearm when the patient has wrist internal and external rotation tremor, but also effectively control the patient's hand symptoms, and the patient can not interfere with the normal activity of the wrist in the non-disease state.

[0054] In further embodiments of the present application, the device does not require the assistance of other medical staff to operate, and has high stability.

[0055] In further embodiments of the present application, a device for reducing the pronation and supination static tremor of the wrist of a patient includes two spiral arm bands 2 made of nylon, which are fixed at the ulnar and radial sides of the wrist guard 1 respectively, and the arm bands 2 are wound around the forearm from the wrist guard 1 to the elbow joint, and connected to the front end fixing block 5 of the SMA driving device.

[0056] In further embodiments of the present application, the SMA driving device is fixed on the inner and outer sides of the upper arm through the fixing block 5, the front end of the SMA driving device is connected to the arm ring 7 at the elbow joint, and the tail end is connected to the arm ring 7 at the shoulder joint.

[0057] In further embodiments of the present application, the SMA driving device includes an SMA spring 4, a fixing block 5, and a rubber sleeve 6. The SMA spring 4 is installed in the rubber sleeve 6, and the two ends of the rubber sleeve 6 are sealed by the fixing block 5. One end of the rubber sleeve 6 is provided with a circular hole 3 in the fixing block 5, so that the SMA spring wire can pass out of the hole and be connected to the tail end of the arm band 2.

[0058] In further embodiments of the present application, one end of the fixing block 5 is fixed on the arm ring 7 at the elbow joint, and the other end is fixed on the arm ring 7 at the shoulder joint.

[0059] In further embodiments of the present application, the front and rear ends of the SMA driving device are fixed on the arm ring 7 of the upper arm.

[0060] In further embodiments of the present application, the two spiral arm bands 2 and the corresponding SMA driving devices are fixed on the upper arm and arranged symmetrically. When the SMA spring 4 is stretched or compressed, it can drive the arm band 2 to pull the forearm to move forward or backward.

[0061] In further embodiments of the present application, the inner sides of the wrist guard 1 and the arm ring 7 are provided with pvc anti-slip pads, and the pvc anti-slip pads are connected to the wrist guard 1 and the arm ring 7 through grafting glue. When the arm band 2 pulls the forearm to move inward or outward, it can prevent the arm band 2 from sliding relative to the skin of the arm.

[0062] In further embodiments of the present application, by stretching and compressing the SMA spring 4, the two spiral arm bands 2 can effectively pull the human forearm to move inward or outward.

[0063] In further embodiments of the present application, the device can effectively reduce the severe tremor of the wrist of a patient with Parkinson's disease, and can effectively control the symptoms of the patient's hand.

[0064] In further embodiments of the present application, the two arm bands 2 are used in a spiral multi-turn winding manner to control the forearm, which conforms to the movement mechanism of the human body's pronator teres and supinator, so that the patient is more natural in the process of reducing the wrist internal and external rotation tremor.

[0065] In further embodiments of the present application, the structure is in compliance with the human body joints, comfortable to wear, and has the characteristics of safety, controllability, lightness and portability, and does not interfere with the patient's daily activities in the non-disease state.

[0066] In further embodiments of the present application, the present application includes two symmetrically spiral-wound arm bands 2 on the forearm, the front ends of the two arm bands 2 are fixed on the ulnar and radial sides of the wrist-worn wrist guard 1, and the two arm bands 2 are spirally wound on the forearm to the elbow joint.

[0067] In further embodiments of the present application, the arm band 2 is made of nylon material.

[0068] In further embodiments of the present application, specifically, the tightness of the two arm bands 2 needs to be controlled to form a torsion angle of about 45° between adjacent turns during the spiral winding along the forearm, so as to maximize the torsion.

[0069] In further embodiments of the present application, the starting points of the two arm bands 2 are fixed on the ulnar and radial sides of the wrist, which conforms to the movement mechanism of the internal pronator teres and supinator of the arm, and the action of the two arm bands 2 is actually to pull the ulna and radius of the forearm, thereby effectively applying resistance.

[0070] In further embodiments of the present application, the elbow joint is bundled with an arm ring 7, and the ends of the arm band 2 and the front end of the SMA driving device are fixed on the arm ring 7.

[0071] In further embodiments of the present application, the ends of the two arm bands 2 are respectively connected with two sets of SMA driving devices, and the two sets of SMA driving devices are symmetrically distributed on the inner and outer sides of the upper arm.

[0072] In further embodiments of the present application, specifically, the SMA driving device mainly includes an SMA spring 4, a fixed block 5, and a rubber sleeve 6.

[0073] In further embodiments of the present application, the trained SMA spring 4 can be considered as a potential material of human bionic mechanism encapsulated inside the rubber sleeve 6.

[0074] In further embodiments of the present application, since the stretching or compression of the SMA spring 4 relies on electric heating, the rubber sleeve 6 can effectively prevent the damage to the human skin during the operation.

[0075] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0076] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0077] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0078] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0079] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0080] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0081] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0082] In a further embodiment of the present application, the SMA spring 4 is heated by electric current, and a rubber sleeve 6 is used to prevent the patient from being scalded.

[0083] In a further embodiment of the present application, two arm rings 7 are sequentially worn at the shoulder joint and the elbow joint of the upper arm of the patient, two SMA driving devices are installed on the two arm rings 7 and are respectively arranged on the inner and outer sides of the upper arm in a facing manner, the wrist guard 1 connected with the two arm bands 2 is worn at the wrist of the patient, the ends of the two arm bands 2 are respectively located on the ulnar side and the radial side of the patient, and are spirally wound around the forearm of the patient, the winding directions of the two arm bands 2 are opposite, the other ends of the two arm bands 2 are respectively connected with the SMA springs 4 in the two SMA driving devices, the two arm bands 2 are in a taut state, the SMA springs 4 are energized to pull the arm bands 2, so as to drive the forearm to perform pronation and supination movement, and the tremor of the wrist in the axial direction of the forearm is inhibited, so as to effectively control the disease of the hand of the patient.

[0084] In a further embodiment of the present application, the two arm bands 2 are spirally wound around the forearm of the patient in multiple turns, and the winding angle and the number of turns are adjusted according to the disease condition of the patient, preferably, the torsion angle between any two adjacent turns is 45°.

[0085] In a further embodiment of the present application, the SMA spring 4 is installed in the rubber sleeve 6 on the SMA driving device, and the SMA spring 4 subjected to energization and heating is subjected to heat insulation treatment by the rubber sleeve 6.

[0086] In a further embodiment of the present application, the pvc anti-skid pads are adhered in the wrist guard 1 and the arm ring 7 by grafting glue, so as to increase the static friction between the wrist guard 1, the arm ring 7 and the skin of the arm, and avoid that the wrist guard 1 and the arm ring 7 slide around the arm of the patient in the working process of the SMA driving device driving the two arm bands 2, so as to affect the treatment effect of the device on the disease of the patient.

[0087] In a further embodiment of the present application, the arm band 2 is made of nylon material, and the fiber science name is polyamide fiber. The most prominent advantage of the polyamide fiber is that the wear resistance is superior to other fibers. Secondly, the elasticity of the polyamide fiber is good, and the elastic recovery rate can be comparable to wool. In addition, the polyamide fiber is light, and the specific gravity is 1.14. Among the commercialized synthetic fibers, the specific gravity of the polyamide fiber is only second to that of polypropylene (polypropylene, the specific gravity is less than 1), and is lighter than that of polyester fiber (the specific gravity is 1.38). Therefore, the polyamide fiber can be processed into fine, soft and smooth silk, and is used to weave beautiful and durable fabrics. In addition, the polyamide fiber has corrosion resistance, is not afraid of insect damage, and has the advantage of not being afraid of mildew.

[0088] In a further embodiment of the present application, the arm band 2 with good wear resistance and elasticity effectively prolongs the service life of the device, and at the same time, has good moisture absorption and corrosion resistance, and is light in quality, and has small burden on the arm of the patient.

[0089] In further embodiments of the present application, the anti-skid pads in the wrist guard 1 and the arm ring 7 are made of PVC, i.e. polyvinyl chloride, which has stable physical and chemical properties, is insoluble in water, alcohol, gasoline, has low gas and water vapor leakage, and has the advantages of flame retardance (flame retardance value is above 40), high chemical resistance (resistant to concentrated hydrochloric acid, sulfuric acid with a concentration of 90%, nitric acid with a concentration of 60%, and sodium hydroxide with a concentration of 20%), mechanical strength, and good electrical insulation.

[0090] In further embodiments of the present application, the anti-skid pads in the wrist guard 1 and the arm ring 7 are made of PVC, i.e. polyvinyl chloride, which has stable physical and chemical properties, is insoluble in water, alcohol, gasoline, has low gas and water vapor leakage, and has the advantages of flame retardance (flame retardance value is above 40), high chemical resistance (resistant to concentrated hydrochloric acid, sulfuric acid with a concentration of 90%, nitric acid with a concentration of 60%, and sodium hydroxide with a concentration of 20%), mechanical strength, and good electrical insulation.

[0091] In further embodiments of the present application, the rubber sleeve 6 is made of rubber, which has good heat insulation and insulation properties, and also has high stability and elasticity.

[0092] The above are only preferred embodiments of the present application, and do not limit the implementation and protection scope of the present application. Those skilled in the art should be able to realize that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A device for alleviating static tremor in pronation and supination of a patient's wrist, characterized in that, The wrist guard (1) is worn on the wrist of the patient. The SMA driving device is worn on the upper arm of the patient. The two arm bands (2) are spirally wound around the forearm of the patient, one end of one arm band (2) is connected with the wrist guard (1) and located on the ulnar side of the wrist of the patient, one end of the other arm band (2) is connected with the wrist guard (1) and located on the radial side of the wrist of the patient, and the other end of each arm band (2) is connected with one SMA driving device, and the SMA driving device is used to drive the arm band (2) to pull the forearm to perform pronation and / or supination movement. The SMA driving device comprises an SMA spring (4) and a fixed block (5), the upper end of the SMA spring (4) is connected with one fixed block (5), and the lower end of the SMA spring (4) passes through the round hole (3) of the other fixed block (5) and is connected with the other end of one arm band (2). When the signal of wrist tremor of the patient with Parkinson's disease is detected, the SMA spring (4) is heated and cooled to drive the SMA spring (4) to pull and press the two arm bands (2) to move, one end of the SMA spring (4) is connected with the end of the arm band (2) through the round hole (3) in the end face of the fixed block (5), and the deformation of the SMA spring (4) directly affects the displacement of the spiral arm band (2), thereby controlling the forearm to perform pronation and supination movement. Further comprising:

2. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 1, wherein The two arm rings (7) are worn on the upper arm of the patient, and each SMA driving device is worn on the upper arm of the patient through the two arm rings (7). Each arm ring (7) is provided with two mounting grooves, each fixed block (5) located at the upper end of the SMA spring (4) is mounted in one mounting groove of the arm ring (7) located below the shoulder joint of the patient, and each fixed block (5) located at the lower end of the SMA spring (4) is mounted in one mounting groove of the arm ring (7) located above the elbow joint of the patient.

3. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 2, wherein, The SMA driving device further comprises a rubber sleeve (6), each rubber sleeve (6) is wrapped on one SMA spring (4), one end of the rubber sleeve (6) abuts against one fixed block (5), and the other end of the rubber sleeve (6) abuts against the other fixed block (5).

4. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 3, wherein Further comprising:

5. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 2, wherein, Grafted glue and anti-skid pad; A layer of anti-skid pad is arranged between the inner side of the wrist guard (1) and the skin of the arm, the anti-skid pad and the wrist guard (1) are adhered through a layer of grafted glue; A layer of anti-skid pad is arranged between the inner side of each arm ring (7) and the skin of the arm, and the anti-skid pad and the arm ring (7) are adhered through a layer of grafted glue. The winding directions of the two arm bands (2) around the forearm of the patient are opposite.

6. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 1, wherein, The material of the anti-skid pad is PVC.

7. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 5, wherein The material of the arm band (2) is nylon.

8. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 1, wherein, The SMA spring (4) of each SMA driving device is in communication with the circuit.

9. The device for mitigating static tremors in pronation and supination of a patient's wrist according to claim 1, wherein, ​

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