Orthopedic spinal orthosis

Abstract

The present invention relates to the technical field of medical auxiliary devices, and specifically to an orthopedic spinal orthosis, comprising a device box, wherein the device box is provided with a plurality of connecting rings, a compression cylinder is provided at the inner end of the device box, fixing rods are fixedly installed at both front and rear ends of the connecting rings close to the device box, a buffer device is provided at the inner end of the compression cylinder to prevent the driving rope from being subjected to excessive force, a rubber sleeve is provided on the inner upper side of the connecting ring, the rubber sleeve is filled with fine sand, and an extrusion device is provided at the inner end of the connecting ring for reducing the tightness of the fine sand in the rubber sleeve to each other so that the rubber sleeve becomes hard as a whole. When flexible movement is required, the rubber sleeve remains soft and can allow the patient to perform actions such as bending over. When fixed support is required, the rubber sleeve is squeezed to make it hard, thereby providing stable support, so that the user can adjust the degree of support in different situations, thereby achieving effective support for the patient's spine, thereby avoiding muscle stiffness and other problems caused by limited movement.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, in particular to an orthopedic spinal orthosis. Background Art

[0002] The spine is the axial skeleton of the human body and the pillar of the body. It has functions such as weight-bearing, shock absorption, protection and movement. Scoliosis refers to one or several segments of the spine bending laterally away from the midline of the body in the coronal plane, forming a spinal deformity with an arc, usually accompanied by rotation of the spine and increase or decrease of kyphosis or protrusion in the sagittal plane, as well as unequal height of the ribs, rotational tilt deformity of the pelvis and abnormalities of the paravertebral ligaments and muscles. It is a symptom or X-ray sign that can be caused by a variety of diseases.

[0003] After searching, it was found that the prior art publication number is CN114732582B, which discloses an orthopedic spinal orthosis, including a correction frame with a U-shaped structure, the correction frame including two U-shaped frames symmetrically arranged and synchronously rotatable and placed in front of the chest, the upper U-shaped frame is placed on the chest of the user, and the lower U-shaped frame is placed on the abdomen, the two U-shaped frames are movably connected with a back support pad placed on one side of the back, the back support pad is placed on the back of the user, the back support pad includes a back plate movably connected to the U-shaped frame, an adjustable flexible back support U-shaped plate is arranged on one side of the back plate close to the U-shaped frame, the back support U-shaped plate preferably has a flexible rubber plate, so that the supporting strength of the back support U-shaped plate can be adjusted when supporting the user's back, the convex side of the back support U-shaped plate faces the U-shaped frame, and a water bag that can be filled with solution is installed in the center of the back support U-shaped plate, the water bag is arranged along the length direction of the spine, and is placed on one side of the spine to improve the comfort during use.

[0004] Therefore, based on the above search and in combination with existing technologies, the above solution will inevitably require patients to bend over and perform other actions while wearing the brace. When patients bend over and perform other actions, they will be restricted by the rigid structure of the brace, so that the patients' movements are restricted by the support of the brace when wearing and using the brace in daily life, which may cause problems such as muscle stiffness. Summary of the invention

[0005] The object of the present invention is to provide an orthopedic spinal orthosis to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an orthopedic spinal orthosis, comprising a device box, the device box is provided with a plurality of connecting rings, the left ends of the connecting rings are fixedly installed with abutment blocks by bolts, two shoulder straps are fixedly installed on the left end of the device box, a plurality of compression cylinders are provided at the inner end of the device box, and the plurality of compression cylinders are symmetrically arranged on the front and rear sides of the device box, the plurality of connecting rings are fixedly installed with fixing rods near the front and rear ends of the device box, and the ends of the compression cylinders away from the connecting rings are fixedly installed on the outer surface of the fixing rods, the inner ends of the compression cylinders are provided with buffer devices to prevent the driving rope from being subjected to excessive force, the inner and upper sides of the connecting rings are provided with rubber sleeves, the rubber sleeves are filled with fine sand, and the inner ends of the connecting rings are provided with extrusion devices for reducing the tightness of the fine sand in the rubber sleeves to make the rubber sleeves harder as a whole.

[0007] As a further solution of the present invention, a wire wheel is rotatably installed at one end of the multiple connecting rings away from the device box, a driving rope is wound on the outer surface of the wire wheel, and the free end of the driving rope is passed through the interior of the multiple connecting rings, and a fork is fixedly installed at one end of the driving rope close to the fixed rod.

[0008] As a further solution of the present invention, a driving ring is slidably installed on the outer surface of the compression cylinder, and a conducting rope is fixedly connected to one end of the fork away from the connecting ring. The free end of the conducting rope is fixedly connected to the outer surface of the driving ring. The fork can disperse the force of the driving rope to the two conducting ropes, thereby reducing local pressure and stress through force dispersion, and the two conducting ropes can be evenly stressed.

[0009] As a further solution of the present invention, the extrusion device includes a stabilizing disk, which is fixedly mounted on the inner end of the connecting ring. A hole is opened at the inner end of the stabilizing disk, and a movable sleeve is passed through the hole. A conical extrusion block is fixedly mounted on the end of the movable sleeve away from the stabilizing disk, and the conical extrusion block is located inside the rubber sleeve.

[0010] As a further solution of the present invention, when the conical extrusion block moves downward, its outer surface squeezes the inside of the rubber sleeve, thereby reducing the tightness between the fine sand inside the rubber sleeve, and the driving rope is passed through the inside of the conical extrusion block and the movable sleeve, thereby realizing the adjustment of the hardness and shape of the rubber sleeve as needed, providing more personalized and comfortable support.

[0011] As a further solution of the present invention, the outer surface of the movable sleeve is provided with a plurality of strip holes, and a plurality of center shafts are rotatably installed on the end of the stabilizing disk away from the conical extrusion block. The outer surface sleeves of the center shafts are provided with driving gears, and the outer surface of the driving gear is inserted into the strip holes and in close contact with the outer surface of the driving rope, so that the driving rope drives the driving gear to rotate through the bite force of the teeth.

[0012] As a further solution of the present invention, a plurality of racks are fixedly mounted on the outer surface of the movable sleeve, and an output gear is fixedly mounted on the outer surface of the central shaft. The output gear is meshed with the racks, and when the output gear rotates, it drives the movable sleeve to move up and down through the meshing with the racks.

[0013] As a further solution of the present invention, a rectangular through hole is provided on the outer surface of the central shaft near the driving gear, and triangular blocks are inserted into the rectangular through holes. Force holes are provided on both ends of the driving gear, and one end of the triangular block away from the central shaft is inserted into the force hole. When the driving gear rotates, the triangular block is pushed to move through the force hole, so that the central shaft drives the output gear to rotate.

[0014] As a further solution of the present invention, the buffer device includes a connecting piece, and the end of the connecting piece close to the compression cylinder is fixedly connected to the driving ring, the end of the connecting piece close to the compression cylinder is fixedly installed with a driving rod, and the end of the driving rod away from the connecting piece is fixedly installed with a piston.

[0015] As a further solution of the present invention, an air relief groove is provided on the left side of the inner wall of the compression cylinder, and the chamber on the left side of the piston in the compression cylinder is a compression chamber. The piston moves in a direction away from the connecting piece and compresses the air in the compression chamber, thereby obstructing the movement of the piston. Subsequently, when the piston moves to the center of the air relief groove, the air inside the compression chamber flows out from the air relief groove, making the movement of the piston smoother.

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

[0017] 1. During the use of the present invention, when flexible activities are required, the rubber sleeve remains soft, allowing the patient to bend over and other movements without restricting daily activities. When fixed support is required, the rubber sleeve is squeezed to harden it, thereby providing stable support, so that the user can adjust the degree of support in different situations. When the shape is fixed, the hardness provided by the rubber sleeve can effectively support the connecting ring, thereby achieving effective support for the patient's spine, thereby avoiding muscle stiffness and other problems caused by limited activities;

[0018] 2. During use of the present invention, by adjusting the length of the strap, the user can ensure that the corrector fits his or her body, avoiding discomfort caused by being too tight or too loose, and improving wearing comfort. At the same time, the quick-release design and adjustable strap length make the operation of the device easier, and even the elderly or people with physical disabilities can use it easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an orthopedic spinal orthosis;

[0020] Figure 2 It is a schematic diagram of the disassembled structure of an orthopedic spinal orthosis;

[0021] Figure 3 This is a schematic diagram of the disassembled structure inside the device box;

[0022] Figure 4 It is a structural schematic diagram of the positional relationship between the connecting ring and the compression cylinder;

[0023] Figure 5 It is a schematic diagram of the structure inside the connecting ring;

[0024] Figure 6 It is a structural schematic diagram of the positional relationship between the movable sleeve and the driving gear;

[0025] Figure 7 It is a structural schematic diagram of the positional relationship between the driving gear and the driving rope;

[0026] Figure 8 Schematic diagram of the internal structure of the central axis;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the compression cylinder.

[0028] In the figure: 1, device box; 2, shoulder strap; 3, abutment block; 4, wire wheel; 5, waist belt; 6, neck guard block; 41, drive snap ring;

[0029] 101, connecting ring; 102, rubber sleeve; 103, driving rope; 104, fork; 105, guide wheel;

[0030] 201, driving ring; 202, conducting rope; 203, connecting piece; 204, return spring; 205, compression cylinder; 206, fixing rod; 207, driving rod; 208, air release groove; 209, piston;

[0031] 301. movable sleeve; 302. stabilizing disk; 303. conical extrusion block; 304. rack; 305. driving gear; 306. output gear; 307. central axis; 308. triangular block; 309. stabilizing rod; 310. conical spring; 311. force-bearing hole. DETAILED DESCRIPTION

[0032] 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.

[0033] Example 1: Please refer to Figures 1 to 3 An orthopedic spinal orthosis includes a device box 1, which is provided with a plurality of connecting rings 101. The left ends of the connecting rings 101 are fixed with abutment blocks 3 by bolts. The side of the abutment blocks 3 away from the connecting rings 101 is arc-shaped and contacts the back of the person. The arc-shaped abutment blocks 3 can fit the patient's back more smoothly, and the outer surfaces of the abutment blocks 3 are wrapped with sponge pads, which make the patient more comfortable during wearing. The plurality of connecting rings 101 and the abutment blocks 3 are connected to form a line similar to the spine, and a standard line is constructed by adjusting the angles between the connecting rings 101. The quasi-spine shape enables the patient to gradually recover health in a standard posture during wearing. Two straps 2 are fixedly installed on the left end of the device box 1 by bolts. The outer surfaces of the straps 2 are provided with positioning holes. A positioning buckle is fixedly installed at one end of the device box 1 close to the straps 2. The positioning holes on the outer surface of the straps 2 are connected to the positioning buckle. At the same time, the positioning buckle can quickly remove the straps 2, thereby achieving the ability to adjust the length of the straps 2 in real time according to the body size of different patients. A neck guard block 6 is fixedly installed near the upper end of the straps 2 of the device box 1 to protect the patient's neck.

[0034] See also Figure 2 , 3 , a wire wheel 4 is rotatably installed at one end of the multiple connecting rings 101 away from the device box 1 through a bolt, a driving rope 103 is wound on the outer surface of the wire wheel 4, and the free end of the driving rope 103 is passed through the interior of the multiple connecting rings 101, a waist belt 5 is fixedly installed at one end of the multiple connecting rings 101 away from the device box 1, and a positioning hole is also opened on the outer surface of the waist belt 5, and a positioning buckle is fixedly installed at one end of the connecting ring 101 close to the waist belt 5, and its specific working principle is the same as that of the shoulder strap 2, and its function is to further fix the abutment block 3 and the end of the connecting ring 101 away from the device box 1, so that the abutment block 3 fits more closely to the patient's back;

[0035] like Figure 2 As shown, specifically, a driving clasp 41 is fixedly installed on the right end of the line wheel 4, which is clamped on the driving clasp 41 through a special crank handle. Turning the crank handle drives the driving clasp 41 to rotate, thereby realizing that the driving clasp 41 drives the line wheel 4 to rotate, so that the driving rope 103 is wound around the outer surface of the line wheel 4 when the line wheel 4 rotates. More specifically, an angle locker is fixedly installed between the line wheel 4 and the connecting ring 101. By utilizing the cooperation of the ratchet and the pawl, it is automatically locked when it is rotated to a specific angle, thereby preventing the line wheel 4 from reversing during the rotation process. Specifically, it is an existing mature technology and will not be described in detail here.

[0036] like Figure 3As shown, a plurality of compression cylinders 205 are arranged at the inner end of the device box 1, and the plurality of compression cylinders 205 are symmetrically arranged at the front and rear sides of the device box 1, and a plurality of connecting rings 101 are fixedly installed with fixing rods 206 at both ends near the front and rear ends of the device box 1, and one end of the compression cylinder 205 away from the connecting ring 101 is fixedly installed on the outer surface of the fixing rod 206;

[0037] like Figure 3 , 4 As shown, a fork 104 is fixedly installed at one end of the driving rope 103 close to the fixed rod 206, and a driving ring 201 is slidably installed on the outer surface of the compression cylinder 205. Specifically, a rectangular groove is opened at the inner end of the driving ring 201, and a rectangular strip is fixedly installed on the outer surface of the compression cylinder 205. The rectangular strip is arranged in the rectangular groove, so as to prevent the driving ring 201 from rotating during the sliding process of the outer surface of the compression cylinder 205. A conducting rope 202 is fixedly connected to one end of the fork 104 away from the connecting ring 101, and the free end of the conducting rope 202 is fixedly connected to the outer surface of the driving ring 201. More specifically, a plurality of guide wheels 105 are rotatably installed at the inner end of the device box 1, and the conducting rope 202 is wound around the outer surface of the guide wheel 105, and the driving direction is changed by the guide wheel 105, so that the movement of the driving ring 201 can more easily pull the fork 104 to move.

[0038] See also Figure 4 , 5 , a buffer device is provided at the inner end of the compression cylinder 205 to prevent the driving rope 103 from being subjected to excessive force, and a rubber sleeve 102 is provided on the inner and upper sides of the connecting ring 101, and the rubber sleeve 102 is filled with fine sand. The tightness between the fine sand inside the rubber sleeve 102 becomes smaller, thereby realizing the overall hardening of the rubber sleeve 102, so that the angles between two adjacent connecting rings 101 will not be easily changed. On the contrary, the tightness between the fine sand inside the rubber sleeve 102 becomes larger, so that the rubber sleeve 102 becomes softer as a whole, so that the two adjacent connecting rings 101 can achieve any change in angle. In order to better stabilize the rubber sleeve 102, the upper and lower ends of the connecting ring 101 are both set to a "trumpet" shape, and the rubber sleeve 102 is set inside the two "trumpet" in relative directions, so as to better limit the rubber sleeve 102 during the extrusion deformation process. A squeezing device is provided at the inner end of the connecting ring 101 for reducing the tightness between the fine sand in the rubber sleeve 102 so that the rubber sleeve 102 becomes hard as a whole.

[0039] Example 2: Please refer to Figure 5 , 67. An orthopedic spinal orthosis, based on Example 1, the extrusion device includes a stabilizing disk 302, the stabilizing disk 302 is fixedly mounted on the inner end of the connecting ring 101, a hole is opened at the inner end of the stabilizing disk 302, a movable sleeve 301 is passed through the hole, a conical extrusion block 303 is fixedly welded to the end of the movable sleeve 301 away from the stabilizing disk 302, the conical extrusion block 303 is located inside the rubber sleeve 102, the outer surface of the conical extrusion block 303 is rounded to avoid the sharp edges from scratching the rubber sleeve 102, when the conical extrusion block 303 moves downward, its outer surface squeezes the inside of the rubber sleeve 102, thereby reducing the tightness between the fine sand inside the rubber sleeve 102, and the driving rope 103 is passed through the inside of the conical extrusion block 303 and the movable sleeve 301;

[0040] Specifically, the outer surface of the movable sleeve 301 is provided with a plurality of strip-shaped holes, and a stabilizing block is fixedly installed at the inner end of the stabilizing disk 302, and the stabilizing block is inserted into the inside of the strip-shaped hole, so that the movable sleeve 301 will not rotate due to the action of the stabilizing block inserted in the strip-shaped hole during the upward and downward movement of the movable sleeve 301. A plurality of central shafts 307 are rotatably installed at one end of the stabilizing disk 302 away from the conical extrusion block 303, and the outer surface of the central shaft 307 is sleeved with a driving gear 305, and the outer surface of the driving gear 305 is inserted into the strip-shaped hole and is in close contact with the outer surface of the driving rope 103 (not shown in the figure). The outer surface of the driving rope 103 is composed of a steel wire wrapped with a layer of rubber. After a certain tensile stress, the teeth of the driving gear 305 are in contact with the rubber layer on the outer surface of the driving rope 103, so that the driving rope 103 drives the driving gear 305 to rotate while moving upward.

[0041] See also Figure 5 , 6 A plurality of racks 304 are fixedly mounted on the outer surface of the movable sleeve 301. The racks 304 form a group of two and are symmetrically mounted on both sides of the strip-shaped hole. An output gear 306 is fixedly mounted on the outer surface of the central shaft 307. There are two output gears 306, which are respectively arranged on the left and right sides of the driving gear 305, so as to achieve more uniform force output. The output gear 306 meshes with the rack 304. When the output gear 306 rotates, it drives the movable sleeve 301 to move up and down under the action of meshing with the rack 304.

[0042] See also Figure 8A rectangular through hole is formed on the outer surface of the central shaft 307 near the driving gear 305, and a triangular block 308 is formed in each of the rectangular through holes. A force-bearing hole 311 is formed on both the left and right ends of the driving gear 305, and one end of the triangular block 308 away from the central shaft 307 is formed inside the force-bearing hole 311. When the driving gear 305 rotates, the triangular block 308 is pushed to move through the force-bearing hole 311, so that the central shaft 307 drives the output gear 306 to rotate;

[0043] Specifically, a stabilizing rod 309 is fixedly installed on the inner end of the central shaft 307, and a plurality of conical springs 310 are arranged on the outer surface of the stabilizing rod 309. One end of the conical spring 310 away from the stabilizing rod 309 is fixedly connected to the triangular block 308, so that the triangular block 308 moves toward the stabilizing rod 309 after being squeezed, and then the triangular block 308 is pushed to return to the initial position under the elastic force of the conical spring 310. More specifically, a plane notch is opened on the outer surface of the stabilizing rod 309, and one end of the conical spring 310 close to the stabilizing rod 309 is fixedly welded to the plane notch. The conical spring 310 is more stable when in contact with a plane than when in contact with an arc-shaped outer surface.

[0044] See also Figure 4 , 9 The buffer device includes a connecting piece 203, one end of the connecting piece 203 close to the compression cylinder 205 is fixedly welded to the driving ring 201, and a driving rod 207 is fixedly installed on the end of the connecting piece 203 close to the compression cylinder 205 by bolts, and a piston 209 is fixedly welded on the end of the driving rod 207 away from the connecting piece 203. A sealing rubber ring is sleeved on the outer surface of the piston 209, and the sealing rubber ring is tightly fitted with the inner wall of the compression cylinder 205, thereby improving the air tightness of the device;

[0045] An air relief groove 208 is provided on the left side of the inner wall of the compression cylinder 205. The left chamber of the piston 209 in the compression cylinder 205 is a compression chamber. The piston 209 moves in a direction away from the connecting piece 203 and compresses the air in the compression chamber, thereby hindering the movement of the piston 209. When the piston 209 completely reaches the center of the air relief groove 208, the compressed air is depressurized and flows out from the air relief groove 208, so that the piston 209 moves smoothly instantly. Specifically, the connecting piece 203 and the compression cylinder 205 are connected by a return spring 204.

[0046] The working principle of the present invention is:

[0047] When in use, the two shoulder straps 2 and the waist belt 5 are worn on the patient's back according to the patient's body size, and then the crank is used to rotate the driving ring 41, so that the driving rope 103 is recovered when the wire wheel 4 rotates. When the driving rope 103 rotates with the wire wheel 4, the driving rope 103 starts to move downward. When the driving rope 103 moves downward, the teeth on the outer surface of the driving gear 305 contact the outer surface of the driving rope 103, and the driving gear 305 starts to rotate under the action of friction.

[0048] When the driving gear 305 starts to rotate, the central shaft 307 starts to rotate through the action of the engagement between the triangular block 308 and the force-bearing hole 311. When the central shaft 307 rotates, it drives the output gear 306 to rotate. During the rotation process, the output gear 306 drives the movable sleeve 301 to move downward through the action of meshing with the rack 304. During the downward movement of the movable sleeve 301, the conical extrusion block 303 is driven to move downward. When the conical extrusion block 303 moves downward, it squeezes the rubber sleeve 102, so that the tightness between the fine sand inside the rubber sleeve 102 becomes smaller, and the rubber sleeve 102 becomes harder as a whole.

[0049] At this time, because the rubber sleeve 102 becomes hard, the two adjacent connecting rings 101 cannot deflect at any angle, thereby limiting the position of the patient's back, so that the patient's back can reach a standard posture;

[0050] When the patient needs to bend over, the driving rope 103 will be subjected to a large amount of force. At this time, the driving rope 103 disperses the force to the guiding rope 202 through the fork 104. Then, the guiding rope 202 pulls the driving ring 201 to move the connecting piece 203 toward the compression cylinder 205, and pushes the piston 209 to move through the driving rod 207. The piston 209 squeezes the air in the compression chamber during the movement. When the piston 209 reaches the center of the air relief groove 208, the compressed air is depressurized and flows out from the air relief groove 208. Then, the driving rope 103 is no longer in a tight state, so that the patient can easily bend over, etc., and then when the recovery state is restored, the connecting piece 203 is pushed to move away from the compression cylinder 205 under the action of the elastic force of the return spring 204, so that the driving rope 103 is restored to a tight state again, and then the patient's spine is once again corrected by the device.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An orthopedic spinal orthosis, comprising a device box (1), characterized in that: The device box (1) is provided with a plurality of connecting rings (101), the left ends of the connecting rings (101) are fixedly mounted with abutment blocks (3) by means of bolts, the left ends of the device box (1) are fixedly mounted with two shoulder straps (2), the inner end of the device box (1) is provided with a plurality of compression cylinders (205), the plurality of compression cylinders (205) are symmetrically arranged at the front and rear sides of the device box (1), the plurality of connecting rings (101) are fixedly mounted with fixing rods (206) at the front and rear ends close to the device box (1), and one end of the compression cylinder (205) away from the connecting ring (101) is fixedly mounted on the outer surface of the fixing rod (206); The inner end of the compression cylinder (205) is provided with a buffer device for preventing the driving rope (103) from being subjected to excessive force, and a rubber sleeve (102) is provided on the inner upper side of the connecting ring (101); The rubber sleeve (102) is filled with fine sand, and the inner end of the connecting ring (101) is provided with a squeezing device for reducing the tightness of the fine sand in the rubber sleeve (102) so that the rubber sleeve (102) becomes harder as a whole; A wire wheel (4) is rotatably mounted on one end of the plurality of connecting rings (101) away from the device box (1); a driving rope (103) is wound around the outer surface of the wire wheel (4); and the free end of the driving rope (103) is passed through the interior of the plurality of connecting rings (101); a fork (104) is fixedly mounted on one end of the driving rope (103) close to the fixing rod (206); a driving ring (201) is slidably mounted on the outer surface of each of the compression cylinders (205); and the fork (104) is fixedly mounted on one end away from the connecting ring (101). The connecting ring (101) is connected to a conducting rope (202), wherein the free end of the conducting rope (202) is fixedly connected to the outer surface of the driving ring (201); the extrusion device comprises a stabilizing disk (302), wherein the stabilizing disk (302) is fixedly mounted on the inner end of the connecting ring (101), wherein the inner end of the stabilizing disk (302) is provided with a hole, wherein a movable sleeve (301) is inserted into the hole, and a conical extrusion block (303) is fixedly mounted on one end of the movable sleeve (301) away from the stabilizing disk (302), wherein the conical extrusion block (303) is located at the inner end of the rubber sleeve (102). When the conical extrusion block (303) moves downward, its outer surface squeezes the inside of the rubber sleeve (102), thereby reducing the tightness of the fine sand inside the rubber sleeve (102), and the driving rope (103) is inserted into the conical extrusion block (303) and the movable sleeve (301); a plurality of strip holes are provided on the outer surface of the movable sleeve (301); a plurality of central shafts (307) are rotatably mounted on one end of the stabilizing plate (302) away from the conical extrusion block (303), and the outer surfaces of the central shafts (307) are provided with A driving gear (305) is provided, and the outer surface of the driving gear (305) is inserted into the strip hole and is in close contact with the outer surface of the driving rope (103); a plurality of racks (304) are fixedly mounted on the outer surface of the movable sleeve (301); an output gear (306) is fixedly mounted on the outer surface of the central shaft (307); the output gear (306) is meshed with the racks (304); when the output gear (306) rotates, it meshes with the racks (304) to drive the movable sleeve (301) to move up and down.

2. An orthopedic spinal orthosis according to claim 1, characterized in that: A rectangular through hole is formed on the outer surface of the central shaft (307) close to the driving gear (305), and a triangular block (308) is inserted into each of the rectangular through holes.

3. An orthopedic spinal orthosis according to claim 2, characterized in that: Both left and right ends of the driving gear (305) are provided with force-bearing holes (311), and one end of the triangular block (308) away from the central axis (307) is inserted into the force-bearing hole (311).

4. An orthopedic spinal orthosis according to claim 3, characterized in that: When the driving gear (305) rotates, it pushes the triangular block (308) to move through the force-bearing hole (311), so that the central shaft (307) drives the output gear (306) to rotate.

5. The orthopedic spinal orthosis according to claim 1, characterized in that: The buffer device comprises a connecting piece (203), and one end of the connecting piece (203) close to the compression cylinder (205) is fixedly connected to the driving ring (201).

6. An orthopedic spinal orthosis according to claim 5, characterized in that: A driving rod (207) is fixedly mounted on one end of the connecting member (203) close to the compression cylinder (205), and a piston (209) is fixedly mounted on one end of the driving rod (207) away from the connecting member (203).

7. An orthopedic spinal orthosis according to claim 6, characterized in that: An air release groove (208) is provided on the left side of the inner wall of the compression cylinder (205); the chamber on the left side of the piston (209) in the compression cylinder (205) is a compression chamber; the piston (209) moves in a direction away from the connecting piece (203) and compresses the air in the compression chamber, thereby hindering the movement of the piston (209).

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