Vertebral body universal reduction device for orthopedic spinal surgery

Abstract

The invention discloses a universal centrum resetting device for orthopedic spinal surgery, and relates to the technical field of orthopedics, the universal centrum resetting device comprises two frame rods, the left and right sides of the outer walls of the two frame rods are movably connected with spacing adjusting rods respectively, and the outer walls of the two frame rods are movably connected with a plurality of angle adjusting shafts; according to the vertebral body reduction device, the multiple angle adjusting shafts and distance adjusting rods are arranged, so that a doctor can flexibly adjust the size and angle of the vertebral body reduction device according to the specific conditions of a patient, the accuracy and safety of an operation are improved, the angle adjusting shafts are rotated, and the angle adjusting shafts are rotated to adjust the angle of the vertebral body reduction device. According to the vertebral restoration device, accurate restoration of a vertebral body can be achieved, a distance adjusting rod allows a doctor to conduct appropriate adjustment according to the thickness of the vertebral body, a screw connecting mechanism and a control pipe can easily control opening and closing of the device through linkage of a lifting pipe and a pressing rod, and therefore the process of replacing a fixing screw in an operation is simplified, the operation time is shortened, and the operation efficiency is improved. And the surgical risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of orthopedics, in particular to a vertebral universal repositioning device for orthopedic spinal surgery. Background Art

[0002] The spine refers to the axial skeleton of the human back, which is composed of a series of vertebrae, intervertebral discs, ligaments and muscles. It not only supports the weight of the body, but also protects the spinal cord and allows the human body to perform various movements. In orthopedic spinal surgery, vertebral reduction is a key step aimed at restoring the normal anatomical structure and function of the spine.

[0003] According to the patent document: CN112402001A, a universal vertebral resetting device for orthopedic spinal surgery is disclosed. The resetting device includes a bracket, a rotating frame, a first resetting rod and a second resetting rod; the bracket includes a horizontal fixed frame and a horizontal driving frame; the two ends of the horizontal fixed frame are respectively installed with a first support rod and a second support rod inclined downward; the horizontal driving frame is installed with a third support rod inclined downward; the horizontal driving frame is installed with a first driving motor, and the first driving motor drives the horizontal fixed frame to rotate in the horizontal direction; the horizontal driving frame is installed with a second driving motor, and the second driving motor drives the rotating frame to rotate in the vertical direction; the rotating frame is installed with a third driving motor and a fourth driving motor; the third driving motor drives the first resetting rod in a rotation direction perpendicular to the rotation direction of the horizontal fixed frame and the rotation direction of the rotating frame; the fourth driving motor drives the second resetting rod to rotate in the same direction as the third resetting rod.

[0004] The vertebral universal reduction device is usually adjusted to an appropriate angle and position by a doctor to position the patient's vertebra. However, the vertebral universal reduction device is usually positioned by drilling a threaded screw into the vertebra. However, the length of the threaded screw is usually fixed, and the thickness and shape of the vertebrae of different patients are different. Therefore, in actual application, the doctor needs to select a threaded screw of appropriate length according to the patient's specific situation. If the threaded screw is drilled into the patient's vertebra and then disassembled, this will undoubtedly increase the complexity and risk of the operation. Summary of the invention

[0005] The purpose of the present invention is to provide a universal vertebral reduction device for orthopedic spinal surgery to solve the problem that the length of the threaded nails proposed in the prior art is usually fixed, and the thickness and shape of the vertebrae of different patients are different. Therefore, in actual application, the doctor needs to select a threaded nail of appropriate length according to the specific situation of the patient. If the threaded nails are drilled into the patient's vertebrae and then disassembled and assembled, this will undoubtedly increase the complexity and risk of the operation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vertebral universal resetting device for orthopedic spine surgery, comprising two racks, the left and right sides of the outer walls of the two racks are respectively movably connected with spacing adjustment rods, the outer walls of the two racks are movably connected with a plurality of angle adjustment shafts, and the bottoms of the two groups of the angle adjustment shafts are movably connected with fixing screws;

[0007] The angle adjustment shaft comprises an angle adjustment shaft body, the bottom of the angle adjustment shaft body is rotatably connected with a screw connection mechanism, and the top of the inner wall of the angle adjustment shaft body is threadedly connected with a fixed shaft;

[0008] The screw connection mechanism includes a screw connection mechanism chassis, chassis slide grooves are respectively opened on both sides of the outer wall of the screw connection mechanism chassis, a control tube is fixedly connected to the top of the screw connection mechanism chassis, a top cover is fixedly connected to the top of the control tube, and a pressure groove is opened on one side of the outer wall of the top cover.

[0009] Preferably, the inner wall of the control tube is slidably connected with a lifting tube, the top end of the lifting tube extends to the inner wall of the top cover, and the outer wall of one side of the lifting tube extending to the inner wall of the top cover is sleeved with a spring.

[0010] Preferably, a pressure rod is fixedly connected to the top end of the lifting tube, one side of the pressure rod extends to one side of the outer wall of the top cover through a pressure groove, and the outer wall of the lifting tube is rotatably connected to rotating short rods on both sides of the inner wall of the control tube.

[0011] Preferably, the two rotating short rods are rotatably connected to a curved rod on one side away from the pulling tube, the two curved rods are extended to both sides of the outer wall of the control tube on one side away from the rotating short rod and are rotatably connected to a second rotating short rod, the inner sides of the two second rotating short rods are rotatably connected to push blocks, the tops of the two push blocks are respectively slidably connected to the inner walls of the two chassis slide grooves, and the inner sides of the two push blocks are fixedly connected to curved splints.

[0012] Preferably, the fixing screw comprises a screw connecting tube, the bottom end of which is fixedly connected to a screw, the top and bottom of both sides of the inner wall of the screw connecting tube are fixedly connected to screw connecting blocks, and the inner walls of the two groups of screw connecting blocks are rotatably connected to screws.

[0013] Preferably, the tops of the outer walls of the two screw rods are fixedly connected with a second gear, and the outer walls of the two screw rods are threadedly connected with a transmission semi-circular disc.

[0014] Preferably, the bottoms of the two transmission semi-circular discs are fixedly connected with lifting plates, and the bottoms of the two lifting plates are fixedly connected with a screw-connected chassis.

[0015] Preferably, a turntable is rotatably connected to the top of the screw connection tube, and a rotating rod is fixedly connected to the middle of the bottom of the turntable.

[0016] Preferably, a gear is fixedly connected to the outer wall of the rotating rod, and two sides of the outer wall of the gear are respectively meshed with the outer walls of the two second gears.

[0017] Preferably, the outer wall of the screw connection tube is movably connected to the inner sides of the two arc-shaped clamping plates.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present application provides multiple angle adjustment shafts and spacing adjustment rods, so that doctors can flexibly adjust the size and angle of the vertebral reduction device according to the specific conditions of the patient, thereby improving the accuracy and safety of the operation. By rotating the angle adjustment shaft, accurate reduction of the vertebra can be achieved, and the spacing adjustment rod allows the doctor to make appropriate adjustments according to the thickness of the vertebra to ensure that the device fits tightly with the vertebra.

[0020] 2. The present application is provided with a screw connection mechanism and a control tube, and the opening and closing of the device can be easily controlled through the linkage of the lifting tube and the pressure rod, thereby simplifying the process of replacing the fixing screws during surgery, reducing the operation time, and reducing the surgical risk.

[0021] 3. This application realizes fine adjustment of the height of the device by providing a transmission semi-circular disc and a lifting plate, so that the doctor can accurately move the screw up and down according to the needs of the operation, ensuring the accuracy of the screw length during the operation. The setting of the turntable and the rotating rod allows the doctor to easily rotate the device, further improving the flexibility of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main body three-dimensional structure of the vertebral universal reduction device for orthopedic spine surgery of the present invention;

[0023] Figure 2 It is a schematic diagram of the main body three-dimensional separation structure of the vertebral universal reduction device for orthopedic spine surgery of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the angle adjustment shaft of the vertebral universal resetting device for orthopedic spine surgery of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional separation structure of the angle adjustment axis of the vertebral universal resetting device for orthopedic spine surgery of the present invention;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the screw connection mechanism of the vertebral universal resetting device for orthopedic spine surgery of the present invention;

[0027] Figure 6It is a schematic diagram of the three-dimensional separation structure of the screw connection mechanism of the vertebral universal resetting device for orthopedic spine surgery of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing screw of the vertebral universal reduction device for orthopedic spine surgery of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the fixing screw part of the vertebral universal reduction device for orthopedic spine surgery of the present invention.

[0030] Numbers in the figure: 1. rack; 2. spacing adjustment rod; 3. angle adjustment shaft; 31. angle adjustment shaft body; 32. fixed shaft; 33. screw connection mechanism; 331. screw connection mechanism chassis; 332. control tube; 333. lifting tube; 334. rotating short rod; 335. arc rod; 336. second rotating short rod; 337. push block; 338. arc splint; 339. pressure rod; 3310. top cover; 3311. pressure groove; 3312. spring; 3313. chassis slide groove; 4. fixing screw; 41. screw connection tube; 42. turntable; 43. turntable; 44. gear; 45. screw connection block; 46. screw; 47. second gear; 48. transmission semicircular disk; 49. lifting plate; 410. screw connection chassis; 411. screw. DETAILED DESCRIPTION

[0031] 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.

[0032] Example: Figure 1-3 As shown, the present invention provides a technical solution for a vertebral universal resetting device for orthopedic spinal surgery, including two frame rods 1, and the left and right sides of the outer walls of the two frame rods 1 are respectively movably connected with spacing adjustment rods 2, the outer walls of the two frame rods 1 are movably connected with multiple angle adjustment shafts 3, and the bottoms of the two groups of angle adjustment shafts 3 are movably connected with fixing screws 4.

[0033] See also Figure 4-6The angle adjustment shaft 3 includes an angle adjustment shaft body 31, the bottom of the angle adjustment shaft body 31 is rotatably connected with a screw connection mechanism 33, the top of the inner wall of the angle adjustment shaft body 31 is threadedly connected with a fixed shaft 32, the screw connection mechanism 33 includes a screw connection mechanism chassis 331, the two sides of the outer wall of the screw connection mechanism chassis 331 are respectively provided with chassis slide grooves 3313, the top of the screw connection mechanism chassis 331 is fixedly connected with a control tube 332, the top of the control tube 332 is fixedly connected with a top cover 3310, one side of the outer wall of the top cover 3310 is provided with a pressing groove 3311, the inner wall of the control tube 332 is slidably connected with a lifting tube 333, the top end of the lifting tube 333 extends to the inner wall of the top cover 3310, and the lifting tube 333 extends to the inner wall of the top cover 3310. The outer wall of one side of the inner wall of the top cover 3310 is sleeved with an elastic The top of the lifting tube 333 is fixedly connected with a pressure rod 339, one side of the pressure rod 339 extends to one side of the outer wall of the top cover 3310 through the pressure groove 3311, and the outer wall of the lifting tube 333 is rotatably connected with a rotating short rod 334 on both sides of the inner wall of the control tube 332, and the two rotating short rods 334 are rotatably connected with an arc rod 335 on one side away from the lifting tube 333, and the two arc rods 335 extend on one side away from the rotating short rod 334 to both sides of the outer wall of the control tube 332 and are rotatably connected with a second rotating short rod 336, and the inner sides of the two second rotating short rods 336 are rotatably connected with push blocks 337, and the tops of the two push blocks 337 are respectively slidably connected to the inner walls of the two chassis slide grooves 3313, and the inner sides of the two push blocks 337 are fixedly connected with an arc clamping plate 338;

[0034] During the operation, when it is necessary to quickly disassemble and assemble the fixing screw 4, the operator only needs to simply press the pressure rod 339. This action will cause the lifting tube 333 to move downward. Due to the elastic force of the spring 3312, the lifting tube 333 can automatically return to its original position after being released. When the pressure rod 339 moves downward, it will push the two rotating short rods 334 to rotate around their rotating axes. This rotation action will further drive the arc rod 335 and the second rotating short rod 336 to rotate accordingly. Since the second rotating short rod 336 is connected to the push block 337, the push block 337 can slide smoothly in the chassis slide groove 3313, and the push block 337 can open and close at the bottom of the screw connection mechanism chassis 331, thereby driving the arc clamping plate 338 to open and close. In this way, the fixing screw 4 can be easily and quickly disassembled and assembled;

[0035] The design of the entire device takes into account the ease and efficiency of operation, greatly reducing the time and labor intensity required to replace the fixing screw 4 when resetting the vertebral body during surgery. In addition, by precisely controlling the movement of each component, the stability and safety of the surgical process are ensured, making the entire surgical process smoother and more reliable.

[0036] See also Figure 7-8The fixing screw 4 includes a screw connection tube 41, the bottom end of the screw connection tube 41 is fixedly connected with a screw 411, the top and bottom of both sides of the inner wall of the screw connection tube 41 are fixedly connected with screw connection blocks 45, the inner walls of the two groups of screw connection blocks 45 are rotatably connected with screws 46, the top of the outer wall of the two screws 46 is fixedly connected with a second gear 47, the outer walls of the two screws 46 are threadedly connected with a transmission semi-circular disk 48, the bottoms of the two transmission semi-circular disks 48 are fixedly connected with a lifting plate 49, the bottoms of the two lifting plates 49 are fixedly connected with a screw connection chassis 410, the top of the screw connection tube 41 is rotatably connected with a turntable 42, the middle part of the bottom of the turntable 42 is fixedly connected with a rotating rod 43, the outer wall of the rotating rod 43 is fixedly connected with a gear 44, the outer walls of the gear 44 are respectively meshed with the outer walls of the two second gears 47, and the outer wall of the screw connection tube 41 is movably connected to the inner side of the two arc-shaped clamping plates 338;

[0037] During the medical operation, when the doctor needs to adjust the length of the screw 411 according to the patient's specific situation, they will operate the turntable 42. The rotation of the turntable 42 will drive the rotating rod 43 connected to it to rotate, and the gear 44 on the rotating rod 43 will also rotate accordingly, and through the precise gear meshing mechanism, drive the two second gears 47 to rotate. The rotation of the second gear 47 will produce a mechanical transmission effect, so that the transmission semi-circular disc 48 tightly connected to the outer wall thread moves up and down along the screw rod 46. This movement of the transmission semi-circular disc 48 will further drive the lifting plate 49 to move up and down accordingly. The movement of the lifting plate 49 will directly affect the position of the screw connecting the chassis 410, causing it to rise and fall accordingly. Through this series of precise mechanical transmission processes, the precise adjustment of the length of the fixing screw 411 is finally achieved, ensuring the smooth progress of the operation and the safety of the patient.

[0038] Working principle: During the operation, when it is necessary to quickly disassemble and assemble the fixing screw 4, the operator only needs to simply press the pressure rod 339, which will cause the lifting tube 333 to move downward. Due to the elastic force of the spring 3312, the lifting tube 333 can automatically return to its original position after being released. When the pressure rod 339 moves downward, it will push the two rotating short rods 334 to rotate around their rotating axes. This rotational action will further drive the arc rod 335 and the second rotating short rod 336 to rotate accordingly. Since the second rotating short rod 336 is connected to the push block 337, the push block 337 can slide smoothly in the chassis slide groove 3313, and the push block 337 can open and close at the bottom of the screw connection mechanism chassis 331, thereby driving the arc splint 338 to open and close. In this way, the fixing screw 4 can be easily and quickly disassembled and assembled;

[0039] During the medical operation, when the doctor needs to adjust the length of the screw 411 according to the patient's specific situation, they will operate the turntable 42. The rotation of the turntable 42 will drive the rotating rod 43 connected to it to rotate, and the gear 44 on the rotating rod 43 will also rotate accordingly, and through the precise gear meshing mechanism, drive the two second gears 47 to rotate. The rotation of the second gear 47 will produce a mechanical transmission effect, so that the transmission semi-circular disc 48 tightly connected to the outer wall thread moves up and down along the screw rod 46. This movement of the transmission semi-circular disc 48 will further drive the lifting plate 49 to move up and down accordingly. The movement of the lifting plate 49 will directly affect the position of the screw connecting the chassis 410, causing it to rise and fall accordingly. Through this series of precise mechanical transmission processes, the precise adjustment of the length of the fixing screw 411 is finally achieved, ensuring the smooth progress of the operation and the safety of the patient.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A vertebral universal repositioning device for orthopedic spine surgery, characterized in that: It comprises two racks (1), the left and right sides of the outer walls of the two racks (1) are respectively movably connected with spacing adjustment rods (2), the outer walls of the two racks (1) are both movably connected with a plurality of angle adjustment shafts (3), and the bottoms of the two groups of angle adjustment shafts (3) are both movably connected with fixing screws (4); The angle adjustment shaft (3) comprises an angle adjustment shaft body (31), the bottom of the angle adjustment shaft body (31) is rotatably connected to a screw connection mechanism (33), and the top of the inner wall of the angle adjustment shaft body (31) is threadedly connected to a fixed shaft (32); The screw connection mechanism (33) comprises a screw connection mechanism chassis (331), chassis slide grooves (3313) are respectively provided on both sides of the outer wall of the screw connection mechanism chassis (331), a control tube (332) is fixedly connected to the top of the screw connection mechanism chassis (331), a top cover (3310) is fixedly connected to the top of the control tube (332), and a pressing groove (3311) is provided on one side of the outer wall of the top cover (3310).

2. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 1, characterized in that: The inner wall of the control tube (332) is slidably connected to a lifting tube (333), the top end of the lifting tube (333) extends to the inner wall of the top cover (3310), and the outer wall of one side of the lifting tube (333) extending to the inner wall of the top cover (3310) is sleeved with a spring (3312).

3. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 2, characterized in that: The top end of the lifting tube (333) is fixedly connected to a pressure rod (339), one side of the pressure rod (339) extends to one side of the outer wall of the top cover (3310) through a pressure groove (3311), and the outer wall of the lifting tube (333) is rotatably connected to rotating short rods (334) on both sides of the inner wall of the control tube (332).

4. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 3, characterized in that: The two rotating short rods (334) are rotatably connected to the side away from the pulling tube (333) with an arc rod (335), and the two arc rods (335) are extended to both sides of the outer wall of the control tube (332) on the side away from the rotating short rod (334) and are rotatably connected to the second rotating short rod (336). The inner sides of the two second rotating short rods (336) are rotatably connected to push blocks (337), and the tops of the two push blocks (337) are respectively slidably connected to the inner walls of the two chassis slide grooves (3313), and the inner sides of the two push blocks (337) are fixedly connected to arc clamps (338).

5. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 1, characterized in that: The fixing screw (4) comprises a screw connection tube (41), the bottom end of the screw connection tube (41) is fixedly connected to a screw (411), the top and bottom of both sides of the inner wall of the screw connection tube (41) are fixedly connected to screw rod connection blocks (45), and the inner walls of two groups of screw rod connection blocks (45) are rotatably connected to screw rods (46).

6. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 5, characterized in that: The tops of the outer walls of the two screw rods (46) are fixedly connected with a second gear (47), and the outer walls of the two screw rods (46) are threadedly connected with a transmission semi-circular disc (48).

7. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 6, characterized in that: The bottoms of the two transmission semi-circular discs (48) are fixedly connected to a lifting plate (49), and the bottoms of the two lifting plates (49) are fixedly connected to a screw-connected chassis (410).

8. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 5, characterized in that: The top of the screw connection tube (41) is rotatably connected to a rotating disk (42), and the middle of the bottom of the rotating disk (42) is fixedly connected to a rotating rod (43).

9. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 8, characterized in that: The outer wall of the rotating rod (43) is fixedly connected with a gear (44), and two sides of the outer wall of the gear (44) are respectively meshed with the outer walls of two second gears (47).

10. The vertebral body universal repositioning device for orthopedic spine surgery according to claim 5, characterized in that: The outer wall of the screw connection tube (41) is movably connected to the inner sides of the two arc-shaped clamping plates (338).

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