A spinal sagittal imbalance corrector

Abstract

The present invention relates to the technical field of spinal correction instruments, and specifically to a spinal sagittal imbalance corrector. A spinal sagittal imbalance corrector comprises: an upper connecting frame and a lower connecting frame placed on the dorsal side, the upper connecting frame is provided with a first connecting sleeve, the first connecting sleeve is used to connect the corresponding thoracic position of the trunk; the lower connecting frame is placed below the upper connecting frame, the front end of the lower connecting frame is provided with a lumbar support, the lumbar support is supported on the back waist at the front end, the lower connecting frame is provided with a second connecting sleeve on the lower side corresponding to the lumbar support, and the second connecting sleeve is connected to the hip; an assisting connecting piece, the assisting connecting piece is connected between the upper connecting frame and the lower connecting frame, and the assisting connecting piece is hinged to the lower connecting frame; a cable, the cable is connected between the assisting connecting piece and the lower connecting frame, and the end of the cable away from the assisting connecting piece is connected to the rear side of the corresponding lumbar support on the lower connecting frame. While applying correction to the thoracolumbar area, it can correct the excessive posterior rotation of the pelvis caused by spinal sagittal imbalance.

Description

Technical Field

[0001] The invention relates to the technical field of spinal correction instruments, and in particular to a spinal sagittal imbalance corrector. Background Art

[0002] Sagittal imbalance of the spine caused by loss of lumbar lordosis is a common spinal deformity. In order to maintain a horizontal line of sight, patients usually activate compensatory mechanisms (such as pelvic posterior rotation, knee flexion, etc.). These compensatory mechanisms can cause excessive pelvic rotation, low back pain, and limited motor function.

[0003] Conventional instruments for correcting sagittal spinal imbalance apply a backward pulling force to the chest and a forward pushing force to the waist at the same time. However, if the patient also has the problem of excessive posterior rotation of the pelvis, the correction effect of the spine will be affected. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a spinal sagittal plane imbalance corrector, which can correct the excessive pelvic posterior rotation caused by spinal sagittal plane imbalance while correcting the thoracolumbar region.

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

[0006] A spinal sagittal imbalance corrector, comprising:

[0007] An upper connecting frame and a lower connecting frame are arranged on the back side, the upper connecting frame is provided with a first connecting sleeve, and the first connecting sleeve is used to connect to the position of the torso corresponding to the thoracic section; the lower connecting frame is arranged below the upper connecting frame, and a waist support is provided at the front end of the lower connecting frame, and the waist support is supported at the front end on the back waist, and a second connecting sleeve is provided on the lower connecting frame corresponding to the lower side of the waist support, and the second connecting sleeve is connected to the hip;

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

[0009] A cable is connected between the power-assisting connecting piece and the lower connecting frame, and one end of the cable away from the power-assisting connecting piece is connected to the rear side of the corresponding lumbar support on the lower connecting frame.

[0010] Furthermore, a spinal sagittal imbalance corrector in the present application also includes a tension regulator, the tension regulator includes a pulley and a driver, the pulley and the driver are connected by transmission, the driver is used to drive the pulley to rotate, and the cable is connected to the pulley; the tension regulator is arranged on the rear side of the lower connecting frame corresponding to the lumbar support, and the pulley is rotatably installed on the lower connecting frame; the tension regulator also includes a locking mechanism, and the locking mechanism is used to lock the pulley to prevent the tension on the cable from driving the pulley to rotate. As a preferred embodiment of the present application, in the present application, the driver is used to drive the pulley to rotate, and the driver drives the pulley to rotate to retract and release the cable, so as to achieve the adjustment of the tension of the cable on the power-assisting connecting piece, and the locking mechanism locks the pulley after the size adjustment is completed.

[0011] Preferably, in a spinal sagittal imbalance corrector in the present application, the driver is an adjustment handle, the wire wheel and the adjustment handle are connected by transmission, and the tension adjuster also includes a locking mechanism, which is used to lock the wire wheel to prevent the tension on the cable from driving the wire wheel to rotate.

[0012] Furthermore, in a spinal sagittal imbalance corrector in the present application, the locking mechanism includes a worm wheel and a worm screw that mesh with each other, the wire wheel is connected to the worm wheel by transmission, and the worm screw is connected to the adjustment handle by transmission. As a preferred embodiment of the present application, the power transmission for driving the wire wheel to rotate is: adjustment handle, worm screw, worm wheel, wire wheel in sequence. The worm screw always locks the worm wheel, has a self-locking effect, does not need to perform a locking operation separately, and is easy to operate.

[0013] Furthermore, a spinal sagittal imbalance corrector in the present application also includes an elastic member, which is connected between a cable and an assisting connector. As a preferred embodiment of the present application, if only the cable is used to pull the assisting connector, it will cause inconvenience in movement when using the back posture corrector, such as inconvenience in bending over. By applying elastic force through the elastic member, the cable pulls the elastic member to put the elastic member in an extended state, so that the cable always maintains tension on the assisting connector to improve the correction effect, and when in use, it is possible to bend over within a preset range and always be affected by the correction force during the bending process. And the tension regulator can adjust the stretching length of the elastic member to adjust the tension on the cable and improve the adaptability of use.

[0014] Further, in a spinal sagittal imbalance corrector in the present application, a rotation limit structure is provided between the wire wheel and the lower connecting frame, and the rotation limit structure is used to constrain the wire wheel to rotate within a preset rotation stroke. As a preferred solution of the present application, the rotation limit structure can prevent the wire wheel from rotating excessively, especially in the process of rotating in the direction of releasing the cable, after rotating to completely release the cable, if it continues to rotate in the same direction, the cable will be tightened, causing the adjustment handle to retract and release the cable in the reverse direction, affecting the user experience. The rotation limit structure includes a limit pin and an arc groove respectively arranged on the lower connecting frame and the wire wheel, the limit pin and the arc groove are axially opposite, and the limit pin extends into the arc groove. As a preferred solution of the present application, during the rotation process, the end of the arc groove is used to resist the limit pin to achieve the limit. It should be noted that the limit pin and the arc groove are respectively arranged on the lower connecting frame and the wire wheel, which also includes the case where the arc groove is arranged on the lower connecting frame and the limit pin is arranged on the wire wheel.

[0015] Preferably, the driver is a motor, and the tension regulator further comprises a control module in communication with the motor, and the motor is in transmission connection with the wire wheel. As a preferred solution of the present application, the control module controls the motor to drive the wire wheel to rotate, so as to achieve the tightening and loosening of the cable, thereby adjusting the tension on the power-assisting connecting member.

[0016] Furthermore, in the present application, a spinal sagittal imbalance corrector, the upper connecting frame includes an upper plate and a lower plate, the lower plate is rotatably connected to the lower end of the upper plate, and the first connecting sleeve is a strap whose ends are respectively connected to the upper plate and the lower plate. As a preferred embodiment of the present application, the upper plate and the lower plate are rotatably connected to adapt to the pitching movement of the user's torso.

[0017] Furthermore, in a spinal sagittal imbalance corrector in the present application, the power-assisting connecting member comprises a first rod body hinged on a lower connecting frame and a second rod body connected to an upper connecting frame, the second rod body is slidably connected to the first rod body, and the cable is connected to the first rod body. As a preferred embodiment of the present application, based on the above structure, the power-assisting connecting member can be adjusted in length to accommodate users of different heights.

[0018] Furthermore, in a spinal sagittal imbalance corrector in the present application, the power-assisting connector and the lower connecting frame are connected to the rotating joint A; the cable pulls the power-assisting connector at position B on the power-assisting connector, and position B is 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 is located at the rear side of the rotating joint A. As a preferred solution of the present application, in this state, the force of the power-assisting connector acting 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.

[0019] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0020] The present invention provides a spinal sagittal imbalance corrector, the principle of which is as follows: a cable is used to pull the power-assisting connecting piece in the backward and downward direction to generate a backward pulling force at the upper connecting frame and a forward thrust at the lumbar support, thereby forming a pair of force couples to apply a corrective torque to the thoracolumbar region; and the front end of the lumbar support contacts the posterior lumbar position as a fulcrum, so when the cable acts on the lower connecting frame, a torque is generated on the second connecting sleeve to pull the hip backward, combined with the forward thrust at the lumbar support, thereby applying a forward rotation force couple to the pelvis, so that while correcting the thoracolumbar region, the excessive backward rotation of the pelvis caused by the spinal sagittal imbalance can be corrected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a spinal sagittal imbalance corrector in use in an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the structure of a spinal sagittal imbalance corrector in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A partial enlarged view of the area C in the middle circle;

[0024] Figure 4 is a side view of a spinal sagittal imbalance corrector in an embodiment of the present application in a preset correction posture;

[0025] Figure 5 It is a rear view of the lower connecting frame in the embodiment of the present application;

[0026] Figure 6 for Figure 5 Cross-sectional view in DD direction;

[0027] Figure 7 for Figure 6 A partial enlarged view of the area E in the middle circle;

[0028] Figure 8 is a schematic diagram of a wire wheel in an embodiment of the present application;

[0029] Fig. 9 This is a schematic diagram of a spinal sagittal imbalance corrector in which the driver is a motor in an embodiment of the present application.

[0030] In the figure: 1-upper connecting frame; 10-sliding cavity; 111-binding belt; 13-upper plate; 131-upper belt groove; 14-lower plate; 141-lower belt groove;

[0031] 2-lower connecting frame; 21-lumbar support; 22-second connecting sleeve; 23-limiting pin; 24-guide wheel; 25-connecting frame;

[0032] 3-power-assisting connecting piece; 31-first rod body; 311-roller; 32-second rod body;

[0033] 41- cable; 42- elastic member;

[0034] 5-tension regulator; 51-wire wheel; 511-arc groove; 521-worm wheel; 522-worm; 53-adjusting handle, 54-motor, 55-tension sensor. DETAILED DESCRIPTION

[0035] Example 1

[0036] Combination Figure 1 and Figure 2 The sagittal imbalance corrector of the spine shown in the figure comprises: an upper connecting frame 1 and a lower connecting frame 2 placed on the dorsal side, the upper connecting frame 1 being provided with a first connecting sleeve, the first connecting sleeve being used to connect to the corresponding thoracic segment position of the trunk; the lower connecting frame 2 being placed below the upper connecting frame 1, the front end of the lower connecting frame 2 being provided with a lumbar support 21, the lumbar support 21 being supported on the back waist at the front end, a second connecting sleeve 22 being provided on the lower connecting frame 2 corresponding to the lower side of the lumbar support 21, the second connecting sleeve 22 being connected to the hip; 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 hinged to the lower connecting frame 2; a cable 41, the cable 41 being connected between the power-assisting connecting member 3 and the lower connecting frame 2, the end of the cable 41 away from the power-assisting connecting member 3 being connected to the rear side of the corresponding lumbar support 21 on the lower connecting frame 2.

[0037] Based on the above structure, a spinal sagittal imbalance corrector in the present application has the following principle: a pull cable 41 is used to pull the power-assisting connector 3 in the backward and downward direction to generate a backward pulling force at the upper connecting frame 1 and a forward thrust at the lumbar support 21; and the front end of the lumbar support 21 contacts the posterior waist position as a fulcrum, so when the pull cable 41 acts on the lower connecting frame 2, it generates a torque pulling the hip backward on the second connecting sleeve 22, and combined with the forward thrust at the lumbar support 21, a forward rotation couple is applied to the pelvis, so that while correcting the thoracolumbar area, the excessive posterior rotation of the pelvis caused by spinal sagittal imbalance can be corrected.

[0038] Combination Figures 5 to 7 As shown, in this embodiment, a tension regulator 5 is also included. The tension regulator 5 includes a wire wheel 51 and a driver. The wire wheel 51 and the driver are transmission-connected. The driver is used to drive the wire wheel 51 to rotate. The cable 41 is connected to the wire wheel 51. The tension regulator 5 is arranged on the rear side of the lower connecting frame 2 corresponding to the waist support 21, and the wire wheel 51 is rotatably installed on the lower connecting frame 2.

[0039] In this embodiment, the driver is an adjustment handle 53, and the wire wheel 51 and the adjustment handle 53 are connected by transmission. The tension regulator 5 also includes a locking mechanism, which is used to lock the wire wheel 51 to prevent the tension on the cable 41 from driving the wire wheel 51 to rotate. The adjustment handle 53 is used to drive the wire wheel 51 to rotate, and the adjustment handle 53 drives the wire wheel 51 to rotate to retract and release the cable 41, so as to adjust the tension of the cable 41 on the power-assisting connector 3. After the size adjustment is completed, the locking mechanism locks the wire wheel 51.

[0040] Combination Figure 6 and Figure 7 As shown, in this embodiment, the locking mechanism includes a worm wheel 521 and a worm 522 that mesh with each other, the line wheel 51 is connected to the worm wheel 521 by transmission, and the worm 522 is connected to the adjustment handle 53 by transmission. The power transmission for driving the line wheel 51 to rotate is: the adjustment handle 53, the worm 522, the worm wheel 521, and the line wheel 51. The worm 522 always locks the worm wheel 521, has a self-locking effect, does not need to perform a locking operation separately, and has good operational convenience. In this embodiment, in order to improve compactness, the worm wheel 521 and the line wheel 51 are coaxially connected, the worm 522 is coaxially connected to the adjustment handle 53, and the adjustment handle 53 is a knob. In other embodiments, the locking mechanism can adopt a ratchet-pawl mechanism (not shown), the ratchet is coaxially connected to the line wheel 51, and when the pawl is coupled to the ratchet, it is used to unidirectionally lock the line wheel 51 to rotate in the direction of releasing the cable 41, and the pawl can be movable to decouple from the ratchet, and the line wheel 51 in the decoupled state can rotate in the direction of releasing the cable 41.

[0041] Combination Figure 2 As shown, in this embodiment, an elastic member 42 is also included, and the elastic member 42 is connected between the cable 41 and the power-assisting connector 3. If only the cable 41 is used to pull the power-assisting connector 3, it will cause inconvenience in movement when using the waist and back posture corrector, such as inconvenience in bending over. By applying elastic force through the elastic member 42, the cable 41 pulls the elastic member 42 to make the elastic member 42 in an extended state, so that the cable 41 always maintains tension on the power-assisting connector 3 to improve the correction effect, and can bend over within a preset range when in use. And the tension adjuster 5 can adjust the stretching degree of the elastic member 42 to adjust the size of the tension generated by the cable 41 and improve the adaptability of use. In this embodiment, the elastic member 42 is a tension spring. In other embodiments, the elastic member 42 can be an elastic rope body.

[0042] Combination Figure 7 and Figure 8As shown, in this embodiment, a rotation limiting structure is provided between the wire reel 51 and the lower connecting frame 2. The rotation limiting structure is used to restrict the rotation of the wire reel 51 within a preset rotation stroke. The rotation limiting structure can prevent the wire reel 51 from rotating excessively. Especially during the rotation in the direction of releasing the cable 41, when the cable 41 is completely released and then continues to rotate in the same direction, the cable 41 will be tightened, resulting in the reversal of the direction of the adjustment handle 53 for taking in and releasing the cable 41, which affects the user experience. In this embodiment, the rotation limiting structure includes a limit pin 23 and an arc groove 511 respectively provided on the lower connecting frame 2 and the wire reel 51. The limit pin 23 and the arc groove 511 are axially opposite, and the limit pin 23 extends into the arc groove 511. During rotation, the end of the arc groove 511 is used to abut against the limit pin 23 to achieve limiting. In this embodiment, the limit pin 23 is on the lower connecting frame 2 and the arc groove 511 is on the wire reel 51. It should be noted that the situation where the limit pin 23 and the arc groove 511 are respectively provided on the lower connecting frame 2 and the wire reel 51 also includes the case where the arc groove 511 is provided on the lower connecting frame 2 and the limit pin 23 is provided on the wire reel 51.

[0043] Combined with 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 whose ends are respectively connected to the upper plate 13 and the lower plate 14. In this application, the upper plate 13 and the lower plate 14 are rotatably connected to adapt to the pitching movement of the user's torso. In this embodiment, a pair of upper belt grooves 131 are provided on both sides of the upper plate 13, and a pair of lower belt grooves 141 corresponding to the upper belt grooves 131 are provided on the lower plate 14. The first connecting sleeve is an upper strap 111 whose ends are connected to the upper belt grooves 131 and the lower belt grooves 141. When in use, the upper end of the strap 111 is connected to the upper belt groove 131, extends from above and in front of the user's shoulder to hold the corresponding shoulder of the user, and the lower end of the strap 111 extends backward from under the user's armpit to be connected to the lower belt groove 141. Specifically, an adjustable strap such as a combined strap connected by a "day" - shaped connecting buckle can be used. In this embodiment, the upper plate 13 extends horizontally, the upper belt grooves 131 are provided at both ends in the extending direction of the upper plate 13, the lower plate 14 extends longitudinally, and the lower belt grooves 141 are provided at the lower end of the lower plate 14. In addition, combined with Figure 3As shown, it also includes a roller 311 rotatably mounted on one end of the power-assisting connecting member 3 near the upper connecting frame 1, and the rollers 311 are mounted in pairs on both sides of the power-assisting connecting member 3. A pair of connecting seats 12 are fixed on the rear side of the upper plate 13, and a sliding cavity 10 is provided on the connecting seat 12. The sliding cavity 10 is extended in the spacing direction of the upper connecting frame 1 and the lower connecting frame 2. A pair of rollers 311 are respectively rolled in the sliding cavities 10 on both sides, and the rollers 311 are always separated from the bottom end of the sliding cavity 10. Different from the general articulation of the power-assisting connecting member 3 directly with the upper connecting frame 1, the power-assisting connecting member 3 contacts the side wall of the sliding cavity 10 through the rollers 311 to pull the upper connecting frame 1. Since the rollers 311 are always separated from the bottom end of the sliding cavity 10, they cannot transmit longitudinal tension to the upper connecting frame 1, so as to avoid the power-assisting connecting member 3 transmitting the downward tension of the cable 41 to the upper connecting frame 1 to generate a downward compression force harmful to the spine. Specifically, the rollers 311 are ball bearings connected to the power-assisting connecting member 3 by screws. The longitudinal pressure caused by the friction between the first rod body 31 and the sliding cavity 10 can be avoided.

[0044] Combination Figure 2 and Figure 6 As shown, in this embodiment, a connecting frame 25 is provided at the bottom of the lower connecting frame 2, and the connecting frame 25 can be adjusted up and down and connected to the lower connecting frame 2, and the second connecting sleeve 22 is connected to the connecting frame 25. It can adapt to users of different heights. The connecting frame 25 and the lower connecting frame 2 are locked by pins or set screws.

[0045] Combination Figure 2 As shown, in this embodiment, the power-assisting connecting member 3 includes a first rod body 31 hinged on the lower connecting frame 2 and a second rod body 32 connected to the upper connecting frame 1, the second rod body 32 is slidably adjustable and connected to the first rod body 31, and the cable 41 is connected to the first rod body 31. Based on the above structure, the power-assisting connecting member 3 can adjust the length to adapt to users of different heights. In this embodiment, the first rod body 31 is a tubular body sleeved on the second rod body 32, and the first rod body 31 and the second rod body 32 are axially locked by a locking pin. The power-assisting connecting member 3 and the lower connecting frame 2 are connected by a universal joint. Different from the pivot connection, it ensures the freedom of the wearer's waist in the frontal plane and can adapt to the lateral rotation and lateral bending movements of the spine. Specifically, the universal joint is a fisheye bearing.

[0046] In addition, combined Figure 2 As shown, the lower connecting frame 2 is provided with a guide wheel 24, which 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 on the side of the guide wheel 24 away from the waist support 21. Based on the above structure, the inclination angle of the cable 41 relative to the power-assisting connecting member 3 can be ensured, so as to ensure that the cable 41 generates a backward pulling force on the power-assisting connecting member 3.

[0047] Combination Figure 4As shown, in this embodiment, 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 at 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 pressure in the x direction to the user's lower back to ensure that sufficient force is generated to push the lower back forward. Specifically, the preset correction posture includes a corresponding back straight state.

[0048] Example 2

[0049] This embodiment is different from the embodiment 1 in that the driver of the tension regulator 5 is an adjustment handle 53, which is manually driven to adjust the tension. Fig. 9 As shown, in this embodiment, the driver is a motor 54, and the tension regulator 5 also includes a control module (not shown) that is in communication with the motor 54. The motor 54 is in transmission connection with the wire wheel 51. Specifically, the motor 54 is mounted on the rear side of the lower connecting frame 2 corresponding to the waist support 21, and the wire wheel 51 is mounted on the output shaft of the motor 54. The control module controls the motor 54 to drive the wire wheel 51 to rotate, so as to achieve the tightening and loosening of the cable 41, thereby adjusting the tension on the power-assisting connecting member 3.

[0050] Furthermore, in this embodiment, the control module includes a tension sensor 55 connected between the cable 41 and the power-assisting connecting member 3, and the tension sensor 55 is in communication connection with the controller of the control module. The tension sensor 55 is used to detect the tension of the cable 41 on the power-assisting connecting member 3, input a preset tension to the controller of the control module, and according to the tension value of the cable 41 on the power-assisting connecting member 3 detected by the tension sensor 55, the control module automatically controls the motor 54 to pull the tension of the power-assisting connecting member 3 within a preset range to ensure the stability of the tension.

[0051] The technical principles of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without creative work, and these methods will fall within the scope of protection of the present invention.

Claims

1. A spinal sagittal imbalance corrector, characterized in that: include: An upper connecting frame (1) and a lower connecting frame (2) are arranged on the back side, the upper connecting frame (1) being provided with a first connecting sleeve, the first connecting sleeve being used to connect to the position of the trunk corresponding to the thoracic section; the lower connecting frame (2) being arranged below the upper connecting frame (1), the front end of the lower connecting frame (2) being provided with a waist support (21), the waist support (21) being supported on the back waist at the front end, the lower connecting frame (2) being provided with a second connecting sleeve (22) corresponding to the lower side of the waist support (21), the second connecting sleeve (22) being connected to the hip; 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 hinged to the lower connecting frame (2); A cable (41), the cable (41) being connected between the power-assisting connecting member (3) and the lower connecting frame (2), and one end of the cable (41) away from the power-assisting connecting member (3) being connected to the rear side of the corresponding waist support (21) on the lower connecting frame (2); The cable (41) is used to pull the power-assisting connecting member (3) in the backward and downward direction, so as to generate a backward pulling force at the upper connecting frame (1) and a forward thrust at the waist support (21); and the front end of the waist support (21) contacts the rear waist as a fulcrum. When the cable (41) acts on the lower connecting frame (2), it generates a torque for pulling the hip backward on the second connecting sleeve (22), and combined with the forward thrust at the waist support (21), a forward rotation torque is applied to the pelvis.

2. The spinal sagittal imbalance corrector according to claim 1, characterized in that: The invention also comprises a tension regulator (5), the tension regulator (5) comprising a wire wheel (51) and a driver, the wire wheel (51) and the driver being transmission-connected, the driver being used to drive the wire wheel (51) to rotate, the cable (41) being connected to the wire wheel (51); the tension regulator (5) is arranged on the rear side of the lower connecting frame (2) corresponding to the waist support (21), and the wire wheel (51) is rotatably mounted on the lower connecting frame (2).

3. The spinal sagittal imbalance corrector according to claim 2, characterized in that: The driver is an adjustment handle (53), the wire wheel (51) and the adjustment handle (53) are transmission-connected, and the tension regulator (5) further comprises a locking mechanism, which is used to lock the wire wheel (51) to prevent the tension on the cable (41) from driving the wire wheel (51) to rotate.

4. The spinal sagittal imbalance corrector according to claim 3, characterized in that: The locking mechanism comprises a worm wheel (521) and a worm (522) coupled to each other, the wire wheel (51) is drivingly connected to the worm wheel (521), and the worm (522) is drivingly connected to the adjustment handle (53).

5. The spinal sagittal imbalance corrector according to claim 3, characterized in that: It also includes an elastic member (42), wherein the elastic member (42) is connected between the pull cable (41) and the power-assisting connecting member (3).

6. The spinal sagittal imbalance corrector according to claim 3, characterized in that: A rotation limiting structure is provided between the wire wheel (51) and the lower connecting frame (2), and the rotation limiting structure is used to constrain the wire wheel (51) to rotate within a preset rotation stroke; the rotation limiting structure comprises a limiting pin (23) and a circular arc groove (511) respectively provided on the lower connecting frame (2) and the wire wheel (51), the limiting pin (23) and the circular arc groove (511) being axially opposite to each other, and the limiting pin (23) extending into the circular arc groove (511).

7. The spinal sagittal imbalance corrector according to claim 2, characterized in that: The driver is a motor (54), and the tension regulator (5) further comprises a control module that is communicatively connected to the motor (54), and the motor (54) is drivingly connected to the wire wheel (51).

8. The spinal sagittal imbalance corrector according to claim 1, characterized in that: The upper connecting frame (1) comprises an upper plate (13) and a lower plate (14), the lower plate (14) being rotatably connected to the lower end of the upper plate (13), and the first connecting sleeve being a binding belt (111) whose ends are respectively connected to the upper plate (13) and the lower plate (14).

9. The spinal sagittal imbalance corrector according to claim 1, characterized in that: The power-assist connecting member (3) comprises a first rod body (31) hinged on the lower connecting frame (2) and a second rod body (32) connected to the upper connecting frame (1); the second rod body (32) is slidably adjustable and connected to the first rod body (31); and a cable (41) is connected to the first rod body (31).

10. The spinal sagittal imbalance corrector according to claim 1, characterized in that: The power-assisting connecting member (3) and the lower connecting frame (2) are connected to the rotating joint A; the pulling cable (41) pulls the power-assisting connecting member (3) at position B on the power-assisting connecting member (3), and position B is on a side of the rotating joint A close to 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 rotating joint A.

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