Upper limb forearm pronation malformation orthosis

Abstract

The invention relates to the technical field of forearm orthotics, and discloses an upper limb forearm pronation deformity orthotics which comprises an orthotics mechanism, the orthotics mechanism further comprises a fixing square tube, and a sliding column is slidably connected to the inner wall of the fixing square tube. The forearm extends into the equipment, a second rotating ring pipe and a first rotating ring pipe are pressed, at the moment, the second rotating ring pipe is fixed to the wrist, the first rotating ring pipe is fixed to the arm joint, the bracelet is limited to be fixed to the biceps brachii muscle, at the moment, rotation of a sliding column is controlled through a hexagonal screwdriver, and the outward extending length of a gear strip is controlled; according to the equipment, the elbow varus can be corrected by controlling the lengths of the gear racks on the left side and the right side, the constraint of textile correction equipment on the palm is broken through through the application of the components, the sensitivity of the palm in the correction process is improved, and the influence on life in the correction process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of forearm orthosis equipment, in particular to an upper limb forearm pronation deformity orthosis. Background Art

[0002] Forearm pronation deformity is usually caused by trauma, traction or compression, and surgical factors. The radial nerve is not only close to the humerus, but also relatively close to the radius. If the patient's arm is fractured, the humerus and radius are likely to be injured at the same time. When the fracture heals, it may be buried in the callus, causing pronation deformity. If the patient's upper limbs are abducted for too long or sleeps with their arms as pillows, it will also cause traction and compression injuries, resulting in pronation deformity.

[0003] Among them, human forearms have deformities of elbow valgus and elbow varus. Current correction tools mostly use plate extrusion to correct the arm. During this type of correction process, the palm cannot move freely, which seriously affects the patient's daily life. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an upper limb forearm pronation deformity orthosis, comprising a correction mechanism, the correction mechanism also comprising a fixed square tube, a sliding column is slidably connected to the inner wall of the fixed square tube, and a fixed plate is fixedly connected to one end of the sliding column away from the fixed square tube. The mechanism provides an installation position for subsequent components to ensure a fixing effect during the correction process; The wrist fixing mechanism includes a rotating ring tube 2 rotatably connected to the outer wall of the fixing plate, a limiting strip 2 is slidably connected to the inner wall of the rotating ring tube 2, and a fixed body 2 is rotatably connected to the outer wall of the rotating ring tube 2, wherein a spring is arranged inside the fixed body 2, and when the rotating ring tube 2 and the limiting strip 2 restrict the wrist, the outer wall of the fixed body 2 is forced to mesh with the outer wall of the rotating ring tube 2; The arm fixing mechanism comprises a rotating column rotatably connected to the outer wall of the fixed square tube, an end of the rotating column away from the fixed square tube is rotatably connected to a limiting bracelet, and a fixed belt plate is fixedly connected to the outer wall of the limiting bracelet.

[0005] Preferably, the correction mechanism also includes a gear bar fixedly connected to the top of the sliding column, the top of the fixed square tube is fixedly connected to a sliding track, and a limiting plate is connected through the outer wall of the fixed square tube. The interior of the present invention is provided with a fixed square tube, a sliding column, a fixed plate, and a sliding track. The fixed square tube and the sliding column are closely fitted together, thereby increasing the stability of the equipment during the correction process.

[0006] Preferably, the correction mechanism also includes a fixed block fixedly connected to the outer wall of the fixed square tube, a fixed ring is rotatably connected to the inner wall of the through hole on the fixed block, a rotating ring tube 1 is rotatably connected to the outer wall of the fixed square tube, a limiting strip 1 is slidably connected to the inner wall of the rotating ring tube 1, and a fixed body 1 is rotatably connected to the inner wall of the rotating ring tube 1. The forearm is extended into the interior of the device and the rotating ring tube 2 is pressed together with the rotating ring tube 1. At this time, the rotating ring tube 2 is fixed at the wrist, the rotating ring tube 1 is fixed at the arm joint, and the limiting bracelet is fixed at the biceps. At this time, the rotation of the sliding column is controlled by a hexagonal screwdriver, and the length of the gear bar extending outward is controlled. The device can correct elbow varus by controlling the length of the gear bars on the left and right sides. The application of the above components breaks the restraint of the palm on the palm by textile correction equipment, improves the sensitivity of the palm during the correction process, and avoids affecting life during the correction process.

[0007] Preferably, the correction mechanism also includes a limiting gear rotatably connected to the inner wall of the fixed square tube, the outer wall of the limiting gear is meshingly connected to the outer wall of the gear bar, a limiting block is slidably connected to the inner wall of the limiting plate, a limiting block is fixedly connected to the outer wall of the limiting plate, a return spring is fixedly connected to the end of the limiting block away from the limiting gear, the outer wall of the return spring is fixedly connected to the inner wall of the limiting plate, wherein a spring is arranged inside the fixed body, and when the rotating ring tube and the limiting bar limit the joint, the outer wall of the fixed body is forced to mesh with the outer wall on the limiting bar.

[0008] Preferably, the wrist fixing mechanism also includes a limiting block 2 fixedly connected to the inner wall of the rotating ring tube 2, an extrusion plate is slidably connected to the inner wall of the limiting block 2, an airbag is fixedly connected to the inner wall of the limiting block 2, an airbag is slidably connected to the inner wall of the limiting block 2, a telescopic plate is slidably connected to the inner wall of the airbag, and an extrusion block is fixedly connected to the inner wall of the rotating ring tube 2. When correction is performed using the above components, since the palm position can be rotated, the joint at the wrist will contact the extrusion plate during the rotation of the arm. At this time, the internal airbag is squeezed by the extrusion plate and the extrusion block, the telescopic plate will extend outward and limit the rotation angle of the wrist, thereby avoiding changes in the contact point between the rotating ring tube 2 and the arm, which affects the correction effect of the equipment.

[0009] Preferably, the arm fixing mechanism also includes a limiting belt fixedly connected to the outer wall of the fixed belt plate, a fixed bracket is slidably connected to the inner wall of the sliding track, and a bracket groove is opened on the top outer wall of the fixed bracket. By controlling the different contact positions of the limiting belt and the fixed bracket, the cleaning or fixing effect is achieved.

[0010] Preferably, the arm fixing mechanism also includes an open bracket groove 2 opened on the side wall of the fixed bracket, and a plurality of friction blocks are fixedly connected to the inner wall of the fixed bracket, and the inner wall of the friction block is slidably connected to the outer wall of the fixed square tube. During the correction process of the present invention, the end of the restriction belt away from the restriction bracelet is connected to the inner wall of the bracket groove 1. At this time, the fixed bracket will be subjected to an oblique upward force. At this time, the friction force between the friction block and the fixed square tube reaches the highest, so that the fixed square tube, the restriction bracelet and the restriction belt form a relatively stable triangle. This type of design allows the device to be separated from external fixation devices such as shoulder straps, thereby avoiding long-term use of devices such as shoulder straps, which may cause deformation of the back neck muscles and cause secondary injury to the patient.

[0011] Preferably, the arm fixing mechanism also includes a sliding block fixedly connected to the end of the friction block away from the fixed bracket, a squeezing spring is fixedly connected to the outer wall of the sliding block, and a reset plate is fixedly connected to the end of the squeezing spring away from the sliding block. The top of the reset plate is fixedly connected to the bottom of the fixed square tube. Correction is a long correction process. The user can connect the other end of the limiting belt with the bracket slot 2. When the arm is extended forward, the left and right ends of the fixed bracket will be subjected to an oblique upward force. At this time, the limiting belt will drive the friction block to slide along the sliding track, and the sliding block will drive the squeezing spring to move backward, and when the arm is bent, the sliding block and the friction block are pushed outward. Through the linkage of the above components, the friction block can easily clean the covered skin.

[0012] The present invention has the following beneficial effects: (1) Before using the present invention, the forearm is inserted into the device and the rotating ring tube 2 and the rotating ring tube 1 are pressed. At this time, the rotating ring tube 2 is fixed at the wrist, the rotating ring tube 1 is fixed at the arm joint, and the limiting bracelet is fixed at the biceps. At this time, the rotation of the sliding column is controlled by a hexagonal screwdriver, and the length of the gear bar extending outward is controlled. The device can correct elbow varus by controlling the length of the gear bars on the left and right sides. The application of the above components breaks the restraint of the palm of the hand by the textile correction device, improves the sensitivity of the palm during the correction process, and avoids affecting life during the correction process.

[0013] (2) When the present invention is corrected through the above-mentioned components, since the palm position can be rotated, the joint at the wrist will contact the extrusion plate during the rotation of the arm. At this time, the internal airbag is squeezed by the extrusion plate and the extrusion block, and the telescopic plate will extend outward and limit the rotation angle of the wrist, thereby avoiding changes in the contact point between the rotating ring tube 2 and the arm, which affects the correction effect of the equipment.

[0014] (3) During the correction process of the present invention, the end of the restriction belt away from the restriction bracelet is connected to the inner wall of the bracket groove. At this time, the fixed bracket will be subjected to an upward oblique force. At this time, the friction between the friction block, the sliding block and the fixed square tube reaches the highest, so that the fixed square tube, the restriction bracelet and the restriction belt form a relatively stable triangle. This design allows the device to be separated from external fixation devices such as shoulder straps, avoiding long-term use of devices such as shoulder straps, which may cause deformation of the back neck muscles and cause secondary damage to the patient.

[0015] (4) The correction of the present invention is a long correction process. The user can connect the other end of the limiting belt to the second bracket slot. When the arm is extended forward, the left and right ends of the fixed bracket will be subjected to an upward oblique force. At this time, the limiting belt will drive the friction block to slide along the sliding track, and the sliding block will drive the extrusion spring to move backward. When the arm is bent, the sliding block and the friction block are pushed outward. Through the linkage of the above components, the friction block can easily clean the covered skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the correction mechanism of the present invention; Figure 4 For the present invention Figure 3 A magnified view of middle; Figure 5 For the present invention Figure 3 Enlarged view of middle B; Figure 6 It is a schematic diagram of the wrist fixing mechanism of the present invention; Figure 7 It is a schematic diagram of the arm fixing mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of C in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. Correction mechanism; 101. Fixed square tube; 102. Sliding column; 103. Fixed plate; 104. Gear bar; 105. Sliding track; 106. Limiting plate; 107. Fixed block; 108. Fixed ring; 109. Rotating ring tube 1; 110. Limiting bar 1; 111. Fixed body 1; 112. Limiting gear; 113. Limiting block 1; 114. Reset spring; 2. Wrist fixing mechanism; 201. Rotating ring tube 2; 202. Limiting 203, fixed body 2; 204, limiting block 2; 205, extrusion plate; 206, airbag; 207, telescopic plate; 208, extrusion block; 3, arm fixing mechanism; 301, rotating column; 302, limiting bracelet; 303, fixed belt plate; 304, limiting belt; 305, fixed bracket; 306, bracket slot 1; 307, bracket slot 2; 308, friction block; 309, sliding block; 310, extrusion spring; 311, reset plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1 - Figure 3 The present invention is an upper limb forearm pronation deformity orthosis, including a correction mechanism 1, which also includes a fixed square tube 101, a sliding column 102 is slidably connected to the inner wall of the fixed square tube 101, and a fixed plate 103 is fixedly connected to the end of the sliding column 102 away from the fixed square tube 101. The mechanism provides an installation position for subsequent components to ensure the fixing effect during the correction process.

[0021] The wrist fixing mechanism 2 includes a rotating ring tube 201 rotatably connected to the outer wall of the fixing plate 103, a limiting strip 202 is slidably connected to the inner wall of the rotating ring tube 201, and a fixed body 203 is rotatably connected to the outer wall of the rotating ring tube 201, wherein a spring is arranged inside the fixed body 203, and when the rotating ring tube 201 and the limiting strip 202 restrict the wrist, the outer wall of the fixed body 203 is forced to mesh with the outer wall of the rotating ring tube 201.

[0022] The arm fixing mechanism 3 includes a rotating column 301 rotatably connected to the outer wall of the fixed square tube 101, and the end of the rotating column 301 away from the fixed square tube 101 is rotatably connected to a limiting bracelet 302, and the outer wall of the limiting bracelet 302 is fixedly connected to a fixed belt plate 303.

[0023] The correction mechanism 1 also includes a gear bar 104 fixedly connected to the top of the sliding column 102, a sliding track 105 fixedly connected to the top of the fixed square tube 101, and a limiting plate 106 is connected through the outer wall of the fixed square tube 101. The fixed square tube 101, the sliding column 102, the fixed plate 103, and the sliding track 105 are arranged inside the present invention. The fixed square tube 101 and the sliding column 102 are closely fitted, thereby increasing the stability of the equipment during the correction process.

[0024] The correction mechanism 1 also includes a fixed block 107 fixedly connected to the outer wall of the fixed square tube 101, a fixed ring 108 is rotatably connected to the inner wall of the through hole on the fixed block 107, a rotating ring tube 109 is rotatably connected to the outer wall of the fixed square tube 101, a limiting strip 110 is slidably connected to the inner wall of the rotating ring tube 109, and a fixed body 111 is rotatably connected to the inner wall of the rotating ring tube 109. The forearm is extended into the interior of the device and the rotating ring tube 201 and the rotating ring tube 109 are pressed. At this time, the rotating ring tube The second 201 is fixed at the wrist, the rotating ring tube 109 is fixed at the arm joint, and the limiting bracelet 302 is fixed at the biceps. At this time, the rotation of the sliding column 102 is controlled by a hexagonal screwdriver, and the length of the gear bar 104 extending outward is controlled. The device can correct elbow varus by controlling the length of the gear bars 104 on the left and right sides. The application of the above components breaks the restraint of the palm of the hand by the textile correction device, improves the sensitivity of the palm during the correction process, and avoids affecting life during the correction process.

[0025] The correction mechanism 1 also includes a limiting gear 112 rotatably connected to the inner wall of the fixed square tube 101, the outer wall of the limiting gear 112 is meshed with the outer wall of the gear bar 104, a limiting block 113 is slidably connected to the inner wall of the limiting plate 106, a limiting block 113 is fixedly connected to the outer wall of the limiting plate 106, a return spring 114 is fixedly connected to the end of the limiting block 113 away from the limiting gear 112, the outer wall of the return spring 114 is fixedly connected to the inner wall of the limiting plate 106, wherein a spring is arranged inside the fixed body 111, and when the rotating ring tube 109 and the limiting bar 110 limit the joint, the outer wall of the fixed body 111 is forced to mesh with the outer wall of the limiting bar 110.

[0026] For example 2, please refer to Figure 4 - Figure 8The present invention is an upper limb forearm pronation deformity orthosis. On the basis of Example 1, the wrist fixing mechanism 2 also includes a limiting block 204 fixedly connected to the inner wall of the rotating ring tube 201, a squeezing plate 205 is slidably connected to the inner wall of the limiting block 204, an air bag 206 is fixedly connected to the inner wall of the limiting block 204, an air bag 206 is slidably connected to the inner wall of the limiting block 204, a telescopic plate 207 is slidably connected to the inner wall of the air bag 206, and an squeezing block 208 is fixedly connected to the inner wall of the rotating ring tube 201. When correction is performed through the above components, since the palm position can be rotated, the joint at the wrist will contact the squeezing plate 205 during the arm rotation process. At this time, the internal air bag 206 is squeezed by the squeezing plate 205 and the squeezing block 208, and the telescopic plate 207 will extend outward and limit the rotation angle of the wrist to avoid changes in the contact point between the rotating ring tube 201 and the arm, which affects the correction effect of the equipment.

[0027] The arm fixing mechanism 3 also includes a limiting belt 304 fixedly connected to the outer wall of the fixed belt plate 303, a fixed bracket 305 is slidably connected to the inner wall of the sliding track 105, and a bracket groove 306 is opened on the top outer wall of the fixed bracket 305. By controlling the different contact positions of the limiting belt 304 and the fixed bracket 305, the cleaning or fixing effect is achieved.

[0028] The arm fixing mechanism 3 also includes a bracket slot 2 307 opened on the side wall of the fixed bracket 305, and a plurality of friction blocks 308 are fixedly connected to the inner wall of the fixed bracket 305, and the inner wall of the friction block 308 is slidably connected to the outer wall of the fixed square tube 101. During the correction process of the present invention, the end of the limiting belt 304 away from the limiting bracelet 302 is connected to the inner wall of the bracket slot 1 306. At this time, the fixed bracket 305 will be subjected to an upward force. At this time, the friction force between the friction block 308 and the fixed square tube 101 reaches the highest, so that the fixed square tube 101, the limiting bracelet 302 and the limiting belt 304 form a relatively stable triangle. This design allows the device to be separated from an external fixing device such as a shoulder strap, thereby avoiding long-term use of devices such as shoulder straps, which may cause deformation of the back neck muscles and cause secondary injury to the patient.

[0029] The arm fixing mechanism 3 also includes a sliding block 309 fixedly connected to the end of the friction block 308 away from the fixed bracket 305, and an extrusion spring 310 is fixedly connected to the outer wall of the sliding block 309, and the end of the extrusion spring 310 away from the sliding block 309 is fixedly connected to a reset plate 311, and the top of the reset plate 311 is fixedly connected to the bottom of the fixed square tube 101. Correction is a long correction process. The user can connect the other end of the limiting belt 304 with the bracket slot 2 307. When the arm is extended forward, the left and right ends of the fixed bracket 305 will be subjected to an upward force. At this time, the limiting belt 304 will drive the friction block 308 to slide along the sliding track 105, and the sliding block 309 will drive the extrusion spring 310 to move backward, and when the arm is bent, the sliding block 309 and the friction block 308 are pushed outward. Through the linkage of the above components, the friction block 308 can easily clean the covered skin.

[0030] A specific application of this embodiment is: before use, the present invention is inserted into the interior of the device and the rotating ring tube 201 and the rotating ring tube 1 109 are pressed. At this time, the rotating ring tube 201 is fixed at the wrist, the rotating ring tube 109 is fixed at the arm joint, and the limiting bracelet 302 is fixed at the biceps. At this time, the rotation of the sliding column 102 is controlled by a hexagonal screwdriver, and the length of the gear bar 104 extending outward is controlled. The device can correct elbow varus by controlling the length of the gear bars 104 on the left and right sides. The application of the above-mentioned components breaks the restraint of the palm by textile correction equipment and improves the sensitivity of the palm during the correction process. Since the palm position can be rotated, the joint at the wrist will contact the extrusion plate 205 during the arm rotation process. At this time, the internal airbag 206 is squeezed by the extrusion plate 205 and the extrusion block 208, and the telescopic plate 207 will extend outward and limit the rotation angle of the wrist to avoid rotation. The contact point between the ring tube 201 and the arm changes. During the correction process, the end of the limiting belt 304 away from the limiting bracelet 302 is connected to the inner wall of the bracket groove 1 306. At this time, the fixed bracket 305 will be subjected to an oblique upward force. At this time, the friction force between the friction block 308 and the fixed square tube 101 reaches the highest, so that the fixed square tube 101, the limiting bracelet 302 and the limiting belt 304 form a relatively stable triangle. The user can connect the other end of the limiting belt 304 to the bracket groove 2 307. When the arm is extended forward, the left and right ends of the fixed bracket 305 will be subjected to an oblique upward force. At this time, the limiting belt 304 will drive the friction block 308 to slide along the sliding track 105, and the sliding block 309 will drive the extrusion spring 310 to move backward, and when the arm is bent, the sliding block 309 and the friction block 308 are pushed outward. Through the linkage of the above components, the friction block 308 can easily clean the covered skin.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An upper limb forearm pronation deformity orthosis, comprising a correction mechanism (1), the correction mechanism (1) further comprising a fixed square tube (101), a sliding column (102) being slidably connected to the inner wall of the fixed square tube (101), and a fixing plate (103) being fixedly connected to one end of the sliding column (102) away from the fixed square tube (101), characterized in that: Also includes: A wrist fixing mechanism (2), the wrist fixing mechanism (2) comprising a second rotating ring tube (201) rotatably connected to the outer wall of the fixing plate (103), a second limiting strip (202) being slidably connected to the inner wall of the second rotating ring tube (201), and a second fixing body (203) being rotatably connected to the outer wall of the second rotating ring tube (201); An arm fixing mechanism (3) comprises a rotating column (301) rotatably connected to the outer wall of a fixed square tube (101), an end of the rotating column (301) away from the fixed square tube (101) being rotatably connected to a limiting bracelet (302), and a fixed belt plate (303) being fixedly connected to the outer wall of the limiting bracelet (302).

2. The upper limb forearm pronation deformity orthosis according to claim 1, characterized in that: The correction mechanism (1) further comprises a gear bar (104) fixedly connected to the top of the sliding column (102); a sliding track (105) is fixedly connected to the top of the fixed square tube (101); and a limiting plate (106) is connected through the outer wall of the fixed square tube (101).

3. The upper limb forearm pronation deformity orthosis according to claim 2, characterized in that: The correction mechanism (1) further comprises a fixed block (107) fixedly connected to the outer wall of the fixed square tube (101); a fixed ring (108) is rotatably connected to the inner wall of the through hole on the fixed block (107); a rotating ring tube (109) is rotatably connected to the outer wall of the fixed square tube (101); a limiting strip (110) is slidably connected to the inner wall of the rotating ring tube (109); and a fixed body (111) is rotatably connected to the inner wall of the rotating ring tube (109).

4. The upper limb forearm pronation deformity orthosis according to claim 3, characterized in that: The correction mechanism (1) further comprises a limiting gear (112) rotatably connected to the inner wall of the fixed square tube (101); the outer wall of the limiting gear (112) is meshingly connected to the outer wall of the gear bar (104); a limiting block (113) is slidably connected to the inner wall of the limiting plate (106); a limiting block (113) is fixedly connected to the outer wall of the limiting plate (106); a return spring (114) is fixedly connected to one end of the limiting block (113) away from the limiting gear (112); and the outer wall of the return spring (114) is fixedly connected to the inner wall of the limiting plate (106).

5. The upper limb forearm pronation deformity orthosis according to claim 4, characterized in that: The wrist fixing mechanism (2) further comprises a limiting block 2 (204) fixedly connected to the inner wall of the rotating ring tube 2 (201); an extrusion plate (205) is slidably connected to the inner wall of the limiting block 2 (204); an air bag (206) is fixedly connected to the inner wall of the limiting block 2 (204); an air bag (206) is slidably connected to the inner wall of the limiting block 2 (204); a telescopic plate (207) is slidably connected to the inner wall of the air bag (206); and an extrusion block (208) is fixedly connected to the inner wall of the rotating ring tube 2 (201).

6. The upper limb forearm pronation deformity orthosis according to claim 5, characterized in that: The arm fixing mechanism (3) further comprises a limiting belt (304) fixedly connected to the outer wall of the fixed belt plate (303); a fixed bracket (305) is slidably connected to the inner wall of the sliding track (105); and a bracket groove (306) is provided on the top outer wall of the fixed bracket (305).

7. The upper limb forearm pronation deformity orthosis according to claim 6, characterized in that: The arm fixing mechanism (3) further comprises a second bracket opening groove (307) formed on the side wall of the fixing bracket (305), a plurality of friction blocks (308) being fixedly connected to the inner wall of the fixing bracket (305), and the inner wall of the friction block (308) being slidably connected to the outer wall of the fixing square tube (101).

8. The upper limb forearm pronation deformity orthosis according to claim 7, characterized in that: The arm fixing mechanism (3) further comprises a sliding block (309) fixedly connected to an end of the friction block (308) away from the fixed bracket (305); an extrusion spring (310) is fixedly connected to an outer wall of the sliding block (309); an end of the extrusion spring (310) away from the sliding block (309) is fixedly connected to a reset plate (311); and a top of the reset plate (311) is fixedly connected to a bottom of the fixed square tube (101).

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