A spinal corrector with longitudinal force unloading function

Abstract

The present invention relates to the technical field of spinal correction instruments, and specifically to a spinal corrector with a longitudinal force unloading function. The device comprises: an upper connecting frame and a lower connecting frame placed on the dorsal side, the upper connecting frame being provided with a first connecting sleeve, the first connecting sleeve being connected to the trunk corresponding to the thoracic section; the lower connecting frame being placed below the upper connecting frame, the front end of the lower connecting frame being provided with a lumbar support, and the lower connecting frame being provided with a second connecting sleeve corresponding to the lower side of the lumbar support; an assist connecting piece being connected between the upper connecting frame and the lower connecting frame; a pull cable being connected to the assist connecting piece, the pull cable being used to pull the assist connecting piece in the backward and downward direction; a force unloading component being provided between the upper connecting frame and the assist connecting piece, the force unloading component comprising a connecting seat and a limiting protrusion respectively provided on the upper connecting frame and the assist connecting piece, a sliding cavity being provided on the connecting seat, the limiting protrusion being slidably provided in the sliding cavity, and the limiting protrusion being always separated from the end wall of the sliding cavity that transmits the longitudinal pulling force. While correcting sagittal plane imbalance, the device can effectively avoid the generation of longitudinal compression force that is harmful to the spine.

Description

Technical Field

[0001] The present invention relates to the technical field of spinal correction instruments, and in particular to a spinal correction device with a longitudinal force unloading function. Background Art

[0002] Sagittal imbalance is primarily caused by degenerative changes in the spine and surrounding structures (such as the paraspinal muscles). Loss of lumbar lordosis, leading to sagittal imbalance, is a common spinal deformity. To maintain a horizontal line of sight, patients often activate compensatory mechanisms, leading to lower back pain and limited mobility. Spinal braces are used to correct sagittal imbalance by applying a forward push to the lumbar spine and a backward pull to the thoracic spine. These two forces form a corrective force couple.

[0003] However, existing spinal correctors often generate longitudinal compressive force while applying the corrective force couple. During the spinal correction process, this compressive force will have a negative impact on the user's spine and easily cause or aggravate the risk of scoliosis. Therefore, there is an urgent need to improve the spinal corrector to avoid the generation of longitudinal negative compressive force. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a spinal corrector with a longitudinal force unloading function, which can effectively avoid the generation of harmful longitudinal compression force while correcting sagittal plane imbalance of the spine.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A spinal correction device with longitudinal force unloading function, comprising:

[0007] The upper and lower connecting frames are placed on the back, the upper connecting frame is provided with a first connecting sleeve, and the first connecting sleeve is connected to the torso corresponding to the thoracic section; the lower connecting frame is placed below the upper connecting frame, the front end of the lower connecting frame is provided with a waist support, and the lower connecting frame is provided with a second connecting sleeve corresponding to the lower side of the waist support;

[0008] A power-assisting connecting piece, the power-assisting connecting piece is connected between the upper connecting frame and the lower connecting frame, and the power-assisting connecting piece is rotatably connected to the lower connecting frame;

[0009] A cable is connected to the power-assisting connector. The cable is used to pull the power-assisting connector backward and downward to generate a backward pulling force at the upper connecting frame and a forward thrust at the lumbar support.

[0010] A force unloading component is provided between the upper connecting frame and the power-assisting connecting piece. The force unloading component includes a connecting seat and a limiting protrusion respectively provided on the upper connecting frame and the power-assisting connecting piece. A sliding cavity is provided on the connecting seat. The sliding cavity extends in the spacing direction of the upper connecting frame and the lower connecting frame. The limiting protrusion is slidably provided in the sliding cavity. The limiting protrusion is always separated from the end wall of the sliding cavity that transmits the longitudinal tension.

[0011] It should be noted that the situations in which the connecting seat and the limiting protrusion are respectively arranged on the upper connecting frame and the power-assist connecting member should include situation one or situation two: situation one is that the connecting seat is arranged on the upper connecting frame, and the limiting protrusion is arranged on the power-assist connecting member. In this case, the limiting protrusion does not conflict with the bottom end of the sliding cavity; situation two is that the connecting seat is arranged on the power-assist connecting member, and the limiting protrusion is arranged on the upper connecting frame. In this case, the upper end of the sliding cavity does not conflict with the power-assist connecting member.

[0012] Furthermore, the present application provides a spinal brace with longitudinal force unloading, wherein the upper connecting frame includes an upper plate and a lower plate, the lower plate being rotatably connected to the lower end of the upper plate, and the first connecting sleeve being a strap that encloses the user's shoulders from the front, with the ends of the strap extending rearward from the upper and lower sides of the shoulders to connect to the upper and lower plates, respectively. As a preferred embodiment of the present application, the upper and lower plates are rotatably connected to accommodate the pitching movement of the user's torso.

[0013] Furthermore, in the present application, a spinal brace with a longitudinal force-releasing function is provided, wherein a limiting protrusion is provided at one end of the power-assisting connector near the upper connecting frame, and the limiting protrusion includes a pair of rollers rotatably mounted on both sides of the power-assisting connector; a connecting seat is fixed to the rear side of the upper plate, the connecting seats are provided in pairs, and the end of the power-assisting connector near the upper connecting frame is provided between the pair of connecting seats, and the pair of rollers are respectively provided in sliding cavities on both sides. As a preferred embodiment of the present application, the rollers are provided in sliding connection with the connecting seat, which can prevent the friction between the limiting protrusion and the sliding cavity from causing longitudinal pressure. Furthermore, in the present application, a spinal brace with a longitudinal force-releasing function is provided, wherein the end of the cable away from the power-assisting connector is connected to the rear side of the corresponding lumbar support on the lower connecting frame, and the second connecting sleeve is connected below the waist. As a preferred embodiment of the present application, since the end of the cable away from the power-assisting connector is connected to the rear side of the corresponding lumbar support on the lower connecting frame, the reaction force of the cable and the second connecting sleeve on the lower connecting frame can generate a forward thrust on the lumbar support.

[0014] Furthermore, the spinal brace with longitudinal force unloading function disclosed herein has a guide wheel mounted on the lower connecting frame, located behind the pivot joint between the power-assisting connector and the lower connecting frame, with a cable pressed against the guide wheel on the side away from the lumbar support. As a preferred embodiment of the present invention, the aforementioned structure has two beneficial effects: first, ensuring the cable's inclination relative to the power-assisting connector to ensure that the cable exerts a backward pulling force on the connector; and second, generating a forward thrust on the lumbar support.

[0015] Furthermore, the spinal brace with longitudinal force unloading function disclosed herein further includes a driver and a pulley in transmission connection with the driver, wherein the driver is configured to rotate the pulley, and a cable is connected to the pulley. As a preferred embodiment of the present invention, the cable is tightened and loosened by the driver driving the pulley to adjust the tension on the power-assisting connector.

[0016] Furthermore, in a spinal brace with longitudinal force unloading function, the second connecting sleeve is connected to the hip. As a preferred embodiment of the present invention, the position where the front end of the lumbar support contacts the lower back is used as the fulcrum. When the cable acts on the lower connecting frame, it generates a torque on the second connecting sleeve that pulls the hip backward. Combined with the forward thrust of the lumbar support, this exerts a forward rotation couple on the pelvis, which can simultaneously correct excessive pelvic backward rotation caused by sagittal imbalance of the spine.

[0017] Furthermore, the spinal brace with longitudinal force unloading function disclosed herein comprises a vertically adjustable connecting frame at the bottom of the lower connecting frame, the connecting frame comprising a connecting rod slidably connected to the lower connecting frame and a plate rotatably disposed at the lower end of the connecting rod, with a second connecting sleeve connected to the plate. As a preferred embodiment of the present invention, the spinal brace can accommodate users of different body shapes.

[0018] Furthermore, in a spinal brace with longitudinal force-relieving function disclosed herein, the power-assisting connector comprises a first rod rotatably connected to a lower connecting frame and a second rod connected to an upper connecting frame. The second rod is slidably connected to the first rod, and a cable is connected to the first rod. As a preferred embodiment of the present invention, based on the above structure, the power-assisting connector is adjustable in length to accommodate users of different body shapes.

[0019] Furthermore, in a spinal sagittal imbalance corrector in the present application, the power-assisting connector includes a first rod hinged on a lower connecting frame and a second rod connected to an upper connecting frame, the second rod being slidably adjustable and connected to the first rod, and a cable being connected to the first rod. As a preferred embodiment of the present application, based on the above structure, the power-assisting connector can be adjusted in length to accommodate users of different heights. Furthermore, in a spinal sagittal imbalance corrector in the present application, the power-assisting connector is connected to a rotating joint A with the lower connecting frame; the cable pulls the power-assisting connector at position B on the power-assisting connector, position B being on the side of the rotating joint A near the upper connecting frame; the lumbar support protrudes from the front end of the lower connecting frame along the x-direction; in a preset correction posture, the positional relationship between the power-assisting connector and the lower connecting frame includes: in the x-direction, position B being located behind the rotating joint A. As a preferred embodiment of the present application, in this state, the force exerted by the power-assisting connector on the lower connecting frame at the rotating joint A can generate a thrust in the x-direction, so that the front end of the lumbar support applies x-direction pressure to the user's lower back.

[0020] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0021] The present invention provides a spinal corrector with a longitudinal force unloading function, in which the first connecting sleeve is connected to the thoracic section, the second connecting sleeve is connected to the waist or below the waist, the lumbar support supports the lower back, and the driver is used to pull the power-assist connecting piece in the backward and downward direction through the cable to generate a backward pulling force at the upper connecting frame and a forward thrust at the lumbar support; different from the upper connecting frame and the power-assist connecting piece adopting a hinged form, in this application, the power-assist connecting piece contacts the side wall of the sliding cavity through a limiting protrusion to pull the upper connecting frame, because the limiting protrusion is always separated from the end wall of the sliding cavity that transmits the longitudinal pulling force, so as to avoid the power-assist connecting piece from transmitting the downward pulling force of the cable to the upper connecting frame, thereby realizing longitudinal force unloading and avoiding the pulling force of the cable from generating a longitudinal compression force that is harmful to the spine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the use of a spinal correction device with a longitudinal force unloading function according to an embodiment of the present application;

[0023] Figure 2 This is a schematic structural diagram of a spinal correction device with a longitudinal force unloading function according to an embodiment of the present application;

[0024] Figure 3 for Figure 2 A partial enlarged view of the area C in the middle circle;

[0025] Figure 4 Schematic diagram of the structure of the lower connecting frame in the embodiment of the present application;

[0026] Figure 5 1. A side view of a spinal brace with a longitudinal force unloading function in a preset correction posture according to an embodiment of the present application;

[0027] In the figure: 1-upper connecting frame; 10-sliding cavity; 111-binding belt; 12-connecting seat; 13-upper plate; 14-lower plate;

[0028] 2-lower connecting frame; 21-lumbar support; 22-second connecting sleeve; 24-guide wheel; 25-connecting frame; 251-connecting rod; 252-plate; 26-pressure block; 261-locking screw;

[0029] 3-Power-assisting connecting piece; 31-First rod; 311-Roller; 32-Second rod;

[0030] 41-cable; 51-reel; 6-driver; 71-tension sensor. DETAILED DESCRIPTION

[0031] Example 1

[0032] Combine Figures 1 to 3 A spinal correction device with longitudinal force unloading function is shown, comprising:

[0033] The upper connecting frame 1 and the lower connecting frame 2 are placed on the back. The upper connecting frame 1 is provided with a first connecting sleeve, which is connected to the torso corresponding to the thoracic section. The lower connecting frame 2 is placed below the upper connecting frame 1. The front end of the lower connecting frame 2 is provided with a waist support 21. The lower connecting frame 2 is provided with a second connecting sleeve 22 corresponding to the lower side of the waist support 21.

[0034] The power-assist connecting member 3 is connected between the upper connecting frame 1 and the lower connecting frame 2, and the power-assist connecting member 3 is rotatably connected to the lower connecting frame 2;

[0035] A cable 41 is connected to the power-assisting connector 3. The cable 41 is used to pull the power-assisting connector 3 in a rearward and downward direction to generate a backward pulling force at the upper connecting frame 1 and a forward thrust at the lumbar support 21.

[0036] A force unloading component is provided between the upper connecting frame 1 and the power-assisting connecting member 3. The force unloading component includes a connecting seat 12 and a limiting protrusion respectively provided on the upper connecting frame 1 and the power-assisting connecting member 3. A sliding cavity 10 is provided on the connecting seat 12. The sliding cavity 10 extends in the spacing direction of the upper connecting frame 1 and the lower connecting frame 2. The limiting protrusion is slidably provided in the sliding cavity 10. The limiting protrusion is always separated from the end wall of the sliding cavity 10 that transmits the longitudinal tension.

[0037] In this embodiment, a spinal corrector with a longitudinal force unloading function is based on the following principle: the first connecting sleeve is connected to the thoracic position, the second connecting sleeve 22 is connected to the waist or below the waist, the lumbar support 21 supports the lower back, and the driver 6 is used to pull the power-assisting connecting member 3 in the backward and downward direction through the cable 41 to generate a backward pulling force at the upper connecting frame 1 and a forward thrust at the lumbar support 21; different from the upper connecting frame 1 and the power-assisting connecting member 3 adopting a rotational connection, in this embodiment, the power-assisting connecting member 3 contacts the side wall of the sliding cavity 10 through a limiting protrusion to pull the upper connecting frame 1. Since the limiting protrusion is always separated from the end wall of the sliding cavity 10 that transmits the longitudinal pulling force, the power-assisting connecting member 3 is prevented from transmitting the downward pulling force of the cable 41 to the upper connecting frame 1, thereby realizing longitudinal force unloading and avoiding the pulling force of the cable 41 from generating a longitudinal compression force that is harmful to the spine.

[0038] It should be noted that the connection seat 12 and the limiting protrusion provided on the upper connecting frame 1 and the power-assisting connecting member 3, respectively, should include either Case 1 or Case 2: Case 1 is that the connection seat 12 is provided on the upper connecting frame 1 and the limiting protrusion is provided on the power-assisting connecting member 3. In this case, the limiting protrusion does not interfere with the bottom end of the slide cavity 10; Case 2 is that the connection seat 12 is provided on the power-assisting connecting member 3 and the limiting protrusion is provided on the upper connecting frame 1. In this case, the upper end of the slide cavity 10 does not interfere with the power-assisting connecting member 3. This embodiment belongs to Case 1. In this embodiment, the slide cavity 10 extends in an arc shape in the direction of the gap between the upper connecting frame 1 and the lower connecting frame 2, and the corresponding arc-shaped middle section of the slide cavity 10 protrudes toward the rear.

[0039] Combine Figure 2 As shown, in this embodiment, the upper connecting frame 1 includes an upper plate 13 and a lower plate 14. The lower plate 14 is rotatably connected to the lower end of the upper plate 13. The first connecting sleeve is a strap 111. The strap 111 encloses the user's shoulders from the front. The ends of the strap 111 extend rearward from the upper and lower sides of the shoulders and are respectively connected to the upper plate 13 and lower plate 14. In this embodiment, the upper plate 13 and lower plate 14 are rotatably connected to accommodate the pitch movement of the user's torso.

[0040] Combine Figure 3 As shown, in this embodiment, the limiting protrusion is provided at one end of the power-assisting connector 3 near the upper connecting frame 1, and the limiting protrusion includes a pair of rollers 311 rotatably mounted on both sides of the power-assisting connector 3; the connecting seat 12 is fixed to the rear side of the upper plate 13, and the connecting seat 12 is provided in pairs, and the end of the power-assisting connector 3 near the upper connecting frame 1 is provided between a pair of connecting seats 12, and a pair of rollers 311 are respectively rolled in the sliding cavities 10 on both sides. The rollers 311 are provided in sliding connection with the connecting seat 12, which can avoid the friction between the limiting protrusion and the sliding cavity 10 causing longitudinal pressure. In this embodiment, the rollers 311 are connected to the power-assisting connector 3 by screws. The rollers 311 are ball bearings. Specifically, the upper plate 13 is extended horizontally, and the lower plate 14 is extended longitudinally. The lower end of the connecting seat 12 extends below the upper plate 13, and the lower plate 14 is rotatably connected to the connecting seat 12.

[0041] Combine Figure 2 As shown, in this embodiment, one end of the cable 41 away from the power-assisting connector 3 is connected to the rear side of the corresponding waist support 21 on the lower connecting frame 2, and the second connecting sleeve 22 is connected below the waist.

[0042] Since the end of the cable 41 away from the power-assisting connector 3 is connected to the rear side of the lower connecting frame 2 corresponding to the lumbar support 21 , the lower connecting frame 2 is subjected to the reaction force of the cable 41 and the second connecting sleeve 22 and can generate a forward thrust on the lumbar support 21 .

[0043] Combine Figure 2 and Figure 4As shown, in this embodiment, the lower connecting frame 2 is provided with a guide wheel 24, which is located at the rear side of the rotational joint between the power-assisting connecting member 3 and the lower connecting frame 2. The cable 41 is pressed against the side of the guide wheel 24 away from the lumbar support 21. This structure has two beneficial effects: first, it ensures the inclination angle of the cable 41 relative to the power-assisting connecting member 3, thereby ensuring that the cable 41 exerts a backward pulling force on the power-assisting connecting member 3; second, it can generate a thrust force at the lumbar support 21 that pushes the waist forward.

[0044] Further, combined Figure 2 and Figure 4 As shown, in this embodiment, a driver 6 and a pulley 51 connected to the driver 6 are further included. The driver 6 is used to drive the pulley 51 to rotate, and the cable 41 is connected to the pulley 51. The pulley 51 is driven to rotate by the driver 6 to achieve the tightening and loosening of the cable 41, thereby adjusting the tension on the power-assisting connector 3. In this embodiment, the driver 6 is a motor installed on the rear side of the lumbar support 21 corresponding to the lower connecting frame 2, and the pulley 51 is installed on the motor output shaft. The pulley 51, the cable 41 and the power-assisting connector 3 are located on the sagittal plane of the user. In other embodiments, the driver 6 can be a manually driven rotating shaft, and the rotating shaft and the pulley 51 are coaxially connected with a worm and a turbine that mesh with each other to achieve self-locking of the pulley 51.

[0045] Further, combined Figure 1 As shown, in this embodiment, the second connecting sleeve 22 is connected to the hip. With the front end of the lumbar support 21 contacting the lower back as the fulcrum, the cable 41 acting on the lower connecting frame 2 generates a torque on the second connecting sleeve 22 that pulls the hip backward. Combined with the forward thrust of the lumbar support 21, this exerts a forward rotation couple on the pelvis, simultaneously correcting pelvic posterior rotation caused by sagittal spinal imbalance.

[0046] Combine Figure 2 and Figure 4 As shown, in this embodiment, a vertically adjustable connecting frame 25 is provided at the bottom of the lower connecting frame 2. The connecting frame 25 comprises a connecting rod 251 slidably connected to the lower connecting frame 2 and a plate 252 rotatably mounted at the lower end of the connecting rod 251. The second connecting sleeve 22 is connected to the plate 252. This allows for the adjustment of the user's height. Specifically, the connecting rod 251 is clamped between a pair of pressure blocks 26 on the lower connecting frame 2. The pressure blocks 26 are connected to locking screws 261. Loosening or tightening the locking screws 261 switches the sliding adjustment state of the connecting rod 251.

[0047] Combine Figure 2As shown, in this embodiment, the power-assist connector 3 comprises a first rod 31 rotatably connected to the lower connecting frame 2 and a second rod 32 connected to the upper connecting frame 1. The second rod 32 is slidably connected to the first rod 31, and a cable 41 is connected to the first rod 31. Based on this structure, the power-assist connector 3 is adjustable in length to accommodate users of different heights. In this embodiment, the first rod 31 is a tubular body that is sleeved onto the second rod 32. The first and second rods 31, 32 are axially locked by a locking pin.

[0048] In this embodiment, the power-assist connector 3 and the lower connecting frame 2 are connected by a universal joint. Unlike a pivot connection, this ensures the wearer's waist has full freedom of movement within the frontal plane and can accommodate lateral and lateral rotational movements of the waist. Specifically, the universal joint is a fisheye bearing.

[0049] In order to ensure that the waist support 21 generates sufficient forward thrust, in this embodiment, Figure 5 As shown, the power-assisting connector 3 and the lower connecting frame 2 are connected to the rotating joint A; the cable 41 pulls the power-assisting connector 3 at position B on the power-assisting connector 3, and position B is on the side of the rotating joint A near the upper connecting frame 1; the lumbar support 21 protrudes from the front end of the lower connecting frame 2 along the x-direction; in the preset correction posture, the positional relationship between the power-assisting connector 3 and the lower connecting frame 2 includes: in the x-direction, position B is located on the rear side of the rotating joint A. In this state, the force of the power-assisting connector 3 acting on the lower connecting frame 2 at the rotating joint A can generate a thrust in the x-direction, so that the front end of the lumbar support 21 applies x-direction pressure to the user's lower back. Specifically, the preset correction posture includes a corresponding back straightening state.

[0050] Example 2

[0051] On the basis of Example 1, in this embodiment, combined with Figure 2As shown, it also includes a tension sensor 71 connected between the cable 41 and the power-assisting connector 3, a controller (not shown) and a posture detection sensor (not shown) connected to the body trunk. The controller is in communication with the driver 6, the tension sensor 71 and the posture detection sensor. The tension sensor 71 is used to detect the tension of the cable 41 on the power-assisting connector 3, input a preset tension to the controller, and based on the tension value of the cable 41 on the power-assisting connector 3 detected by the tension sensor 71, the controller is used to control the tension of the driver 6 pulling the power-assisting connector 3 within a preset range to ensure the stability of the tension. The posture detection sensor is used to detect the posture parameters of the body trunk in the sagittal plane. Based on the posture parameters input by the posture detection sensor, the controller controls the driver 6 to apply a compensating tension p on the power-assisting connector 3 on the basis of applying a constant tension P. The total tension applied by the driver 6 to the power-assisting connector 3 is F=P+p. This compensates for the gravitational torque of the user's upper body in real time and balances the influence of gravity on the user when the trunk leans forward, especially when bending over. Specifically, p = a sin θ, where a is a preset parameter whose value corresponds to the weight of the user's torso. The user can adjust the value of a through the input terminal to adjust the comfort of eliminating their own weight to meet their individual needs. θ is the forward tilt angle of the torso detected by the posture detection sensor. P and a can be set through the input device before use to meet the user's different power requirements. In this embodiment, the value of P can also be adjusted through the input terminal.

[0052] The technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A spinal brace with longitudinal force unloading function, characterized in that: include: An upper connecting frame (1) and a lower connecting frame (2) are arranged on the back side, wherein the upper connecting frame (1) is provided with a first connecting sleeve, and the first connecting sleeve is connected to the position of the torso corresponding to the thoracic section; the lower connecting frame (2) is arranged below the upper connecting frame (1), a waist support (21) is provided at the front end of the lower connecting frame (2), and a second connecting sleeve (22) is provided on the lower connecting frame (2) corresponding to the lower side of the waist support (21); A power-assisting connecting member (3), the power-assisting connecting member (3) being connected between the upper connecting frame (1) and the lower connecting frame (2), the power-assisting connecting member (3) being rotatably connected to the lower connecting frame (2); A pull cable (41), the pull cable (41) being connected to the power-assisting connecting member (3), the pull cable (41) being used to pull the power-assisting connecting member (3) in a rearward and downward direction, so as to generate a backward pulling force at the upper connecting frame (1) and a forward thrust at the lumbar support (21); A force unloading component is provided between the upper connecting frame (1) and the power-assisting connecting member (3), and the force unloading component comprises a connecting seat (12) and a limiting protrusion respectively provided on the upper connecting frame (1) and the power-assisting connecting member (3); a sliding cavity (10) is provided on the connecting seat (12), and the sliding cavity (10) extends in the spacing direction between the upper connecting frame (1) and the lower connecting frame (2); the limiting protrusion is slidably provided in the sliding cavity (10), and the limiting protrusion is always separated from the end wall of the sliding cavity (10) that transmits longitudinal tension; one end of the cable (41) away from the power-assisting connecting member (3) is connected to the rear side of the corresponding waist support (21) on the lower connecting frame (2), and the second connecting sleeve (22) is connected below the waist.

2. A spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: The upper connecting frame (1) comprises an upper plate (13) and a lower plate (14), wherein the lower plate (14) is rotatably connected to the lower end of the upper plate (13), and the first connecting sleeve is a strap (111), which holds the user's shoulders from the front, and the ends of the strap (111) extend backward from the upper and lower sides of the shoulder and are respectively connected to the upper plate (13) and the lower plate (14).

3. The spinal correction device with longitudinal force unloading function according to claim 2, characterized in that: The limiting convex portion is arranged at one end of the power-assisting connecting member (3) close to the upper connecting frame (1), and the limiting convex portion includes a pair of rollers (311) rotatably mounted on both sides of the power-assisting connecting member (3); The connecting seat (12) is fixed to the rear side of the upper plate (13), and the connecting seats (12) are arranged in pairs. The auxiliary connecting member (3) is arranged between a pair of connecting seats (12) near one end of the upper connecting frame (1), and a pair of rollers (311) are respectively rolled in the sliding cavities (10) on both sides.

4. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: One end of the pull rope (41) away from the power-assisting connecting member (3) is connected to the rear side of the corresponding waist support (21) on the lower connecting frame (2), and the second connecting sleeve (22) is connected below the waist.

5. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: The lower connecting frame (2) is provided with a guide wheel (24), and the guide wheel (24) is located at the rear side of the rotating joint between the power-assisting connecting member (3) and the lower connecting frame (2), and the cable (41) is pressed onto the side of the guide wheel (24) away from the waist support (21).

6. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: It also includes a driver (6) and a reel (51) connected to the driver (6), wherein the driver (6) is used to drive the reel (51) to rotate, and the cable (41) is connected to the reel (51).

7. The spinal correction device with longitudinal force unloading function according to claim 4, characterized in that: The second connecting sleeve (22) is connected to the hip.

8. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: A connecting frame (25) that can be adjusted up and down is provided at the bottom of the lower connecting frame (2). The connecting frame (25) comprises a connecting rod (251) slidably connected to the lower connecting frame (2) and a plate body (252) rotatably arranged at the lower end of the connecting rod (251). The second connecting sleeve (22) is connected to the plate body (252).

9. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: The power-assist connecting member (3) comprises a first rod (31) rotatably connected to the lower connecting frame (2) and a second rod (32) connected to the upper connecting frame (1); the second rod (32) is slidably adjustable and connected to the first rod (31); and a cable (41) is connected to the first rod (31).

10. The spinal correction device with longitudinal force unloading function according to claim 1, characterized in that: The power-assisting connecting member (3) and the lower connecting frame (2) are connected to the rotary joint A; the pull cable (41) pulls the power-assisting connecting member (3) at position B on the power-assisting connecting member (3), and position B is on the side of the rotary joint A near the upper connecting frame (1); The waist support (21) protrudes from the front end of the lower connecting frame (2) along the x-direction; In a preset correction posture, the positional relationship between the power-assisting connecting member (3) and the lower connecting frame (2) includes: in the x-direction, position B is located at the rear side of the rotational joint A.

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