CN107088087B - Intraoperative spinal traction orthosis - Google Patents

Abstract

The invention relates to an intraoperative spinal traction corrector, which comprises a body position frame, a head fixing device, a crotch fixing device and a plurality of manipulators. The intraoperative spine traction corrector provided by the invention can axially pull a patient, press horizontally and press from top to bottom at multiple angles, all manipulators can slide in a chute and can be taken down from a body frame for sterilization, a plurality of support arms are arranged to ensure that a pushing manipulator device can move in a full degree of freedom, a mechanical hand pushing pressure head is ensured to rotate and achieve the optimal pushing position and pushing angle, a hydraulic cylinder is arranged to drive the mechanical hand pushing pressure head to stretch and retract to achieve the intraoperative spine pushing correction effect, mechanical hand pushing pressure heads in different directions and positions are selected to push according to the position of the patient spine deformity, the intraoperative spine deformity is corrected through longitudinal traction and three-dimensional pushing, and the orthopedic operation is maintained, so that the intraoperative fixation is more convenient, the surgery is simplified, the time is shortened, and the better correction effect is obtained.

Description

Intraoperative spinal traction orthosis

technical field

The invention relates to the field of medical equipment, in particular to an intraoperative spinal traction corrector.

Background technique

Spinal deformity is the relative loss of the normal anatomical position between the bones of the spine due to congenital or acquired factors. Its occurrence and development will lead to abnormal appearance of the patient, and seriously affect the functions of multiple systems such as nerves, movement, breathing, circulation, and digestion. , and even threaten the life of the patient. Such diseases include various congenital developmental deformities of the spine, traumatic fractures of the spine, scoliosis caused by various reasons, degenerative or traumatic spondylolisthesis, pathological fractures caused by spinal tuberculosis or tumors, etc. All common diseases in spinal surgery, and the surgical treatment of these diseases involves the reduction of spinal deformity.

The traditional reduction of spinal deformity is to reset the deformed spinal alignment through fixed traction or manual prying of pedicle screws during operation to expand and compress the deformed spine. This method has a good therapeutic effect on mild spinal deformity. However, for severe spinal deformity and dislocation, it is difficult to reset, and the controllability and precision of strength and direction are very high. If mistakes are made, it is easy to cause secondary injury or even paralysis.

Contents of the invention

In order to solve the above-mentioned technical problems, an intraoperative spinal traction corrector that can push in multiple directions and positions, ensure the accuracy of strength and direction, and is convenient for disinfection and use is provided.

An intraoperative spinal traction corrector, comprising a posture frame, a head immobilization device, a crotch immobilization device and a plurality of manipulators, the head immobilization device is detachably arranged The head fixing device is arranged at the rear part of the body position frame in the length direction, and there is a distance between the head fixing device and the crotch fixing device, and one end of all the manipulators is detachably arranged on the body position frame On the side edge, the other end is bent toward the upper side of the body position frame, and can move freely on the body position frame with full degrees of freedom.

The body position frame is a plate-shaped structure, and the front and rear parts of the body position frame in the length direction are provided with first slide rails, the first slide rails are parallel to the length direction of the body position frame, and the head The fixing device and the crotch fixing device are respectively arranged in the corresponding first slide rails, and can move freely in the first slide rails.

Both the lower side of the head restraint and the lower side of the crotch restraint are provided with second slide rails, and both the head restraint and the crotch restraint can be mounted on the corresponding second slide rails. The rail is free to move along the width direction of the posture frame, and the lower surface of the second slide rail is provided with a first slide block matched with the first slide rail.

The body position frame is a plate-shaped structure, and the side edge of the body position frame in the length direction is provided with a chute, and the lower end of each of the manipulators is provided with a slide card that matches the chute, and all The manipulators can move freely in the chute.

The cross section of the chute is a convex structure, the cross section of the sliding card is a convex structure, and the upper end of the sliding card protrudes from the chute, and the upper surface of the sliding card is provided with a vertical direction through the threaded hole of the sliding card, the threaded hole is provided with a fixing rod, the lower end of the fixing rod can be in contact with the inner lower surface of the chute to form a fixed connection, the upper end protrudes from the sliding card and is provided with a Rotate the rotary handle of the fixed pole.

The manipulator includes a first support arm, a second support arm and a pushing device, the first support arm is vertically arranged on the slide card in a manner capable of freely rotating along its center line, and the first support arm The upper end of the second support arm is rotatably connected to one end of the second support arm, and the other end of the second support arm is rotatably connected to the pushing device.

The second support arm is rotatably arranged on the first support arm through the first rotating shaft, the pushing device is rotatably arranged on the second supporting arm through the second rotating shaft, and the Both the first rotation shaft and the second rotation shaft are provided with threads and locking bolts for locking, the first support arm and the second support arm, the second support arm and the push All pressing devices are locked by the locking bolts.

The pushing device includes a base, a rotating shaft, a hydraulic cylinder and an extrusion head, one end of the base is rotatably connected to the second support arm through the second bending shaft, and the rotating shaft is arranged on the The inside of the base, and one end protrudes from the end surface of the base, the fixed part of the hydraulic cylinder is set on the end surface where the rotating shaft extends into the base, and can rotate with the rotating shaft. The pressure head is detachably arranged on the output head of the hydraulic cylinder, and can move away from and close to the base as the hydraulic cylinder moves.

The shape of the end of the extrusion head away from the base is a U-shaped structure with the opening facing away from the base; the shape of the end of the extrusion head away from the base is a hollow cylindrical structure; the extrusion head The shape of the end away from the base is two U-shaped structures arranged side by side with the opening facing away from the base; and the particles arranged in the spherical extrusion head, the air cylinder is fixedly arranged on the output part of the hydraulic cylinder, the spherical extrusion head is arranged at the end of the hydraulic cylinder away from the base, and The air guide tube communicates with the air cylinder, and the particles are arranged in the spherical extrusion head and can enter the air guide tube under the suction of the air cylinder.

A pointer is provided on the hinged end of the first support arm and the second support arm, and a circular scale matching with the pointer is provided on the second support arm, and the center of the circular scale is at the on the axis of the first rotating shaft, and when the first support arm and the second support arm are in the same line, the pointer points to the zero point of the circular scale; the second support arm and the push A pointer is provided on the hinged end of the pressing device, and a circular scale matching the pointer is provided on the pushing device, and the center of the circular scale is on the axis of the second rotating shaft, and when the The pointer points to the zero point of the circular scale when the second support arm is on the same line as the pushing device.

The intraoperative spinal traction orthosis provided by the present invention can perform axial traction on the patient by setting the head fixation device and the crotch fixation device, squeeze left and right in the horizontal position and squeeze from top to bottom, and can be squeezed by setting the second slide rail The head immobilization device and the crotch immobilization device can be deviated at a certain position to accommodate more patients. By setting the chute on the side edge of the body position frame, all manipulators can slide inside the chute, and can also When it needs to be disinfected, it is removed from the position frame. The manipulator ensures that the pushing device can move with full freedom by setting the first support arm and the second support arm. To achieve the best extrusion position and extrusion angle, the extrusion effect is achieved by setting the hydraulic cylinder to drive the extrusion head to expand and contract. According to the different positions of the spine, different extrusion heads are selected for extrusion, and traction and extrusion are used during the operation. , to correct spinal deformity, make the operation more convenient, simplify the operation steps, and the orthopedic effect is better.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the top view of intraoperative spinal traction corrector provided by the present invention;

Fig. 2 is a three-dimensional schematic view of the intraoperative spinal traction corrector provided by the present invention;

Fig. 3 is a structural schematic diagram of the manipulator of the intraoperative spinal traction corrector provided by the present invention;

Fig. 4 is another schematic structural view of the extrusion head of the intraoperative spinal traction corrector provided by the present invention;

Fig. 5 is another schematic structural view of the extrusion head of the intraoperative spinal traction corrector provided by the present invention;

Fig. 6 is a partial schematic view of A of the intraoperative spinal traction corrector provided by the present invention;

In the picture:

1. Posture frame; 2. Head fixing device; 3. Crotch fixing device; 4. Manipulator; 11. Chute; 41. Sliding card; 42. Fixed rod; 43. Rotating handle; 44. First support arm; 45, the second support arm; 46, the pushing device; 47, the first rotating shaft; 48, the second rotating shaft; 49, the locking bolt; 461, the base; 462, the rotating shaft; 463, the hydraulic cylinder; 464, squeeze pressure head.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

The intraoperative spinal traction corrector as shown in Figures 1 to 6 includes a posture frame 1, a head immobilizer 2, a crotch immobilizer 3 and a plurality of manipulators 4, and the head immobilizer 2 is detachably arranged on The front section of the body position frame 1 in the length direction, the crotch fixing device 3 is arranged at the rear part of the body position frame 1 in the length direction, and there is a distance between the head fixing device 2 and the crotch fixing device 3 One end of all the manipulators 4 is detachably arranged on the side edge of the body position frame 1, and the other end is bent toward the top of the body position frame 1, and can move freely with full degrees of freedom above the body position frame 1 .

The patient lies prone on the posture frame 1, and its head is fixed in the head fixing device 2, and the crotch and the lower body are fixed in the crotch fixing device 3. According to the patient's condition requirements, Select an appropriate amount of manipulator 4 to squeeze the patient's spine.

The distance between the head restraint 2 and the crotch restraint 3 is adapted to the patient's height.

The body position frame 1 is a plate structure, and the front and rear parts of the body position frame 1 in the longitudinal direction are provided with first slide rails, and the first slide rails are parallel to the body position frame 1 in the longitudinal direction, so The head restraint device 2 and the crotch restraint device 3 are respectively arranged in the corresponding first slide rails, and can move freely in the first slide rails.

Preferably, accommodating holes for accommodating the patient's chest and abdomen are opened in the middle of the posture frame 1 , and the accommodating holes can be opened in the patient's chest and abdomen respectively.

The lower side of the head restraint 2 and the lower side of the crotch restraint 3 are all provided with second slide rails, and the head restraint 2 and the crotch restraint 3 can be positioned at the corresponding The second slide rail is free to move along the width direction of the body position frame 1, and the lower surface of the second slide rail is provided with a first slide block matched with the first slide rail.

The structure of the head restraint 2 is as follows (not shown in the figure):

The head fixing device 2 is a head fixing belt, and after the patient lies prone on the body position frame 1, the head fixing belt is hooked to the patient's head from the patient's chin to fix it.

The head immobilization device 2 is a hemispherical metal plate, and the metal plate is provided with fixing nails for screwing into the patient's skull. When in use, holes are punched in the patient's skull, and the corresponding fixing nails are screwed into the holes. to fix.

The structure of described crotch fixing device 3 is as follows (not shown in the figure):

The crotch fixing device 3 is a crotch fixing belt (structure such as a waist belt), which is wound around the patient's crotch and locked during use.

The crotch fixing device 3 is a U-shaped structure with a certain width, the opening of the U-shaped structure faces the head fixing device 2, and the end of the U-shaped structure is provided with a hole facing the inside of the U-shaped structure. When in use, a hole is punched on the patient's hip bone, and the corresponding fixing nail is screwed into the hole for fixing.

The body position frame 1 is a plate structure, and the side edge of the length direction of the body position frame 1 is provided with a chute 11, and the lower end of each of the manipulators 4 is provided with a chute that matches the chute 11. card 41, and all the manipulators 4 can move freely in the chute 11.

The cross section of the chute 11 is a convex structure, the cross section of the sliding card 41 is a convex structure, and the upper end of the sliding card 41 protrudes from the chute 11, and the upper surface of the sliding card 41 is There is a threaded hole penetrating through the slide card 41 in the vertical direction, and a fixed rod 42 is arranged in the threaded hole. The lower end of the fixed rod 42 can contact with the inner lower surface of the chute 11 to form a fixed connection. The sliding card 41 protrudes and is provided with a rotating handle 43 for rotating the fixing rod 42 .

The number of the chute 11 is two, and they are respectively arranged on the two side edges of the length direction of the body position frame 1, and slide the slide card 41 into the adapted chute 11 as required for use. Can.

The end of the chute 11 is provided with a limit block, so that the sliding card 41 of the manipulator 4 can only enter the chute 11 from one end of the chute 11, preventing the manipulator from sliding. 4 o'clock, because the force is too large, the manipulator 4 is disengaged from the other end of the chute 11 .

The manipulator 4 includes a first support arm 44, a second support arm 45 and a pushing device 46, and the first support arm 44 is vertically arranged on the slide card 41 in a manner capable of freely rotating along its center line, The upper end of the first support arm 44 is rotatably connected to one end of the second support arm 45, and the other end of the second support arm 45 is rotatably connected to the pushing device 46. The sliding card 41 satisfies The degree of freedom of the manipulator 4 on the X axis, the first support arm 44 meets the degree of freedom of the manipulator 4 on the Z axis, and the second support arm 45 meets the degree of freedom of the manipulator 4 on the Y axis, even Therefore, the pressing device 46 can move with a full degree of freedom above the body position frame 1 .

Preferably, both the first support arm 44 and the second support arm 45 are telescopic structures.

The second support arm 45 is rotatably arranged on the first support arm 44 through the first rotating shaft 47, and the pushing device 46 is rotatably arranged on the second supporting arm through the second rotating shaft 48. 45, and the first rotation shaft 47 and the second rotation shaft 48 are provided with threads and locking bolts 49 for locking, the first support arm 44 and the second support arm 45 , the second support arm 45 and the pushing device 46 are locked by the locking bolt 49, when the second supporting arm 45 and the pushing device 46 are rotated to the set position, they are locked by The locking bolt 49 is locked to ensure that the first support arm 44 , the second support arm 45 , and the pushing device 46 do not move relative to each other, thereby increasing the precision of extrusion.

Preferably, the slide card 41 is provided with a first rotating motor, the output end of the first rotating motor is vertically arranged, and a first gear is arranged on it, and the first supporting arm 44 is connected to the first rotating motor. The rotating motors are arranged side by side, and the first supporting arm 44 is provided with a second gear matched with the gear, the first supporting arm 44 is driven to rotate by the action of the first rotating motor, and After the first support arm 44 rotates to a certain angle, the torque of the motor ensures that the first support arm 44 does not rotate.

A pointer is provided on the hinged end of the first support arm 44 and the second support arm 45, and a circular scale matching with the pointer is provided on the second support arm 45. The center of circle is on the axis of the first rotating shaft 47, and when the first support arm 44 and the second support arm 45 are in the same straight line, the pointer points to the zero point of the circular scale; A pointer is provided on the hinged end of the support arm 45 and the pushing device 46, and a circular scale matching with the pointer is provided on the pushing device 46, and the center of the circular scale is at the second on the axis of the rotating shaft 48, and when the second support arm 45 and the pushing device 46 are in the same straight line, the pointer points to the zero point of the circular scale, and the circular scale can be directly at the corresponding position For engraving, it can also be pasted at the corresponding position, and the scale line of 0°-360° is set on the circular scale, and the accuracy is 1°. When the doctor rotates the manipulator 4, according to the needs of the patient, Select a suitable angle to rotate, and determine the rotation angle according to the pointer and the circular scale.

Preferably, the first support arm 44 and the second support arm 45 can rotate by ±150°, and the second support arm 45 and the pushing device 46 can rotate by ±150°.

The sliding card 41 is provided with a circular scale around the first support arm 44, and the first support arm 44 is provided with a pointer corresponding to it, and when the second support arm 45 and the body position When the wide sides of the frame 1 are parallel, the pointer points to the zero point of the circular scale, and the rotation angle of the first support arm 44 can be read in real time through the reading of the pointer when the first support arm 44 rotates.

The pushing device 46 includes a base 461, a rotating shaft 462, a hydraulic cylinder 463 and an extruding head 464. One end of the base 461 is rotatably connected to the second support arm 45 through the second bending shaft. The rotating shaft 462 is arranged inside the base 461 through a load-bearing bearing, and one end protrudes from the end face of the base 461, and the fixed part of the hydraulic cylinder 463 is arranged on the end face of the rotating shaft 462 extending into the base 461, And can rotate with the rotating shaft 462 , the extrusion head 464 is detachably arranged on the output head of the hydraulic cylinder 463 , and can move away from and close to the base 461 with the movement of the hydraulic cylinder 463 .

Preferably, the base 461 is provided with a second rotating motor, and the second rotating motor drives the rotating shaft 462 to rotate, and then drives the extrusion head 464 to rotate.

The expansion and contraction of the hydraulic cylinder 463 drives the extrusion head 464 to act to squeeze the patient's spine. Preferably, a pressure sensor is provided between the extrusion head 464 and the hydraulic cylinder 463, and can pass through The pressure readings are transmitted to the doctor in a wired or wireless way, so that the doctor can have a specific judgment on the pressure of the patient's spine and increase the accuracy of the squeezing force.

The shape of the end of the extruding head 464 away from the base 461 is a U-shaped structure with the opening facing away from the base 461, and the patient's spine is squeezed through the two ends of the U-shaped structure, which is suitable for extruding from the spine. Squeeze downwards directly above.

The shape of the end of the extruding head 464 away from the base 461 is a hollow cylindrical structure. Preferably, a spring and an extruding block are arranged inside the hollow cylindrical structure, and one end of the spring is connected to the extruding head 464. One end close to the base 461 is fixedly connected, and the other end is connected to the extruding block, the extruding block can enter the hollow cylindrical structure driven by the spring, and in the state of the spring, The surface of the extrusion block away from the spring is flush with the end surface of the hollow cylindrical structure away from the base 461. When in use, the hollow cylindrical structure compresses the spine of the patient. A compact is extruded into the hollow cylindrical structure, increasing the extrusion strength and positioning performance.

Preferably, the end surface of the extrusion block that is flush with the hollow cylindrical structure is recessed toward the spring to form a spherical depression, which increases the positioning performance of the extrusion block.

The shape of the end of the extruding head 464 away from the base 461 is two U-shaped structures arranged side by side with the opening facing away from the base 461, that is, four-claw shape, which increases the contact area and contact position, thereby increasing the extrusion stability.

The extruding head 464 is a spherical manipulator, and the spherical manipulator includes a cylinder, an air guide tube, a spherical extruding head 464 and particles arranged in the spherical extruding head 464, and the air cylinder is fixedly arranged on the hydraulic cylinder 463 The spherical extrusion head 464 is arranged on the end of the hydraulic cylinder 463 away from the base 461, and communicates with the cylinder through the air duct, and the particles are arranged on the spherical extrusion head. In the pressure head 464, and can enter the air guide tube under the extraction of the cylinder, the spherical extrusion head 464 is made of flexible material, preferably silica gel material, the total volume of the particles is the spherical One-third to one-half of the internal volume of the extruding head 464. When in use, the spherical extruding head 464 is approached to the patient's spine, and the spherical extruding head 464 is deformed. After the pressure, the air cylinder pumps out the gas inside the spherical extrusion head 464, so that all the particles are completely extruded in the spherical extrusion head 464. The spine covered by the indenter 464 is extruded in multiple directions, which prevents the extruding head 464 from sliding and other actions after extrusion to cause secondary injury to the patient.

The end of the rotating shaft 462 away from the base 461 is provided with a second threaded hole, and the end of the extruding head 464 close to the rotating shaft 462 is provided with an external thread matched with the second threaded hole, which is convenient The extrusion head 464 provided on the rotating shaft 462 is replaced.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (6)

1. a spinal traction corrector in the operation, is characterized in that: comprise postural frame, head immobilizer, crotch immobilizer and a plurality of manipulators, described head immobilizer is detachably arranged on the length direction of described postural frame The front section of the crotch fixing device is arranged at the rear part of the body position frame in the length direction, and there is a distance between the head fixing device and the crotch fixing device, and one end of all the manipulators is detachably arranged On the side edge of the body position frame, the other end is bent toward the top of the body position frame, and can move freely with full degrees of freedom above the body position frame; wherein: The body position frame is a plate-shaped structure, and the side edge of the body position frame in the length direction is provided with a chute, and the lower end of each of the manipulators is provided with a slide card that matches the chute, and all The manipulators can move freely in the chute; The manipulator includes a first support arm, a second support arm and a pushing device, the support arm is vertically arranged on the slide card in a manner capable of freely rotating along its center line, and the upper end of the first support arm It is rotatably connected to one end of the second support arm, and the other end of the second support arm is rotatably connected to the pushing device; The slide card is provided with a first rotating motor, the output end of the first rotating motor is vertically arranged, and a first gear is arranged on it, the first support arm is arranged in parallel with the first rotating motor, And the first support arm is provided with a second gear matching the gear, the first support arm is driven to rotate by the action of the first rotating motor, and when the first support arm rotates to After a certain angle, the torque of the motor ensures that the first support arm does not rotate; The pushing device includes a base, a rotating shaft, a hydraulic cylinder and an extrusion head, one end of the base is rotatably connected to the second support arm through a second bending shaft, and the rotating shaft is arranged on the Inside the base, and one end protrudes from the end surface of the base, the fixed part of the hydraulic cylinder is arranged on the end surface where the rotating shaft extends into the base, and can rotate with the rotating shaft, the extrusion head It is detachably arranged on the output head of the hydraulic cylinder, and can move away from and close to the base with the action of the hydraulic cylinder; The shape of the end of the extrusion head away from the base is a U-shaped structure with the opening facing away from the base; the shape of the end of the extrusion head away from the base is a hollow cylindrical structure; the extrusion head The shape of the end away from the base is two U-shaped structures arranged side by side with the opening facing away from the base; and the particles arranged in the spherical extrusion head, the air cylinder is fixedly arranged on the output part of the hydraulic cylinder, the spherical extrusion head is arranged at the end of the hydraulic cylinder away from the base, and The air guide tube communicates with the air cylinder, the particles are arranged in the spherical extrusion head, and can enter the air guide tube under the extraction of the air cylinder; The base is provided with a second rotating motor, and the second rotating motor drives the rotating shaft to rotate, and then drives the extrusion head to rotate; the hollow cylindrical structure is provided with a spring and an extrusion block inside, so that One end of the spring is fixedly connected to the end of the extruding head close to the base, and the other end is connected to the extruding block, the extruding block can enter the hollow cylindrical structure driven by the spring, and In the state of the spring, the surface of the extrusion block away from the spring is flush with the end surface of the hollow cylindrical structure away from the base; the end surface of the extrusion block is flush with the hollow cylindrical structure A spherical-segment-shaped depression is formed toward the spring depression to increase the positioning performance of the extrusion block. 2. Intraoperative spinal traction corrector according to claim 1, characterized in that: the body position frame is a plate-like structure, and the front and rear portions of the body position frame in the longitudinal direction are provided with first slide rails, The first slide rail is parallel to the length direction of the body position frame, the head fixing device and the crotch fixing device are respectively arranged in the corresponding first slide rails, and can be positioned on the first slide rail. Move freely within the track. 3. Intraoperative spinal traction corrector according to claim 2, characterized in that: the underside of the head immobilizer and the underside of the crotch immobilizer are all provided with second slide rails, and the head Both the upper part fixing device and the crotch fixing device can freely move along the width direction of the body position frame on the corresponding second slide rail, and the lower surface of the second slide rail is provided with a The rail matches the first slider. 4. The intraoperative spinal traction corrector according to claim 1, characterized in that: the cross section of the chute is a convex structure, the cross section of the sliding card is a convex structure, and the sliding card The upper end protrudes from the chute, and the upper surface of the sliding card is provided with a threaded hole passing through the sliding card in the vertical direction, and a fixing rod is arranged in the threaded hole, and the lower end of the fixing rod can be connected with the The inner lower surface of the chute contacts to form a fixed connection, and the upper end protrudes from the sliding card and is provided with a rotating handle for rotating the fixing rod. 5. The intraoperative spinal traction corrector according to claim 1, characterized in that: the second support arm is rotatably arranged on the first support arm through the first rotating shaft, and the pushing device passes through The second rotating shaft is rotatably arranged on the second support arm, and both the first rotating shaft and the second rotating shaft are provided with threads and locking bolts for locking. The supporting arm and the second supporting arm, and the second supporting arm and the pushing device are all locked by the locking bolt. 6. The intraoperative spinal traction corrector according to claim 5, characterized in that: a pointer is provided on the hinged end of the first support arm and the second support arm, and a pointer is provided on the second support arm A circular scale matched with the pointer, the center of the circular scale is on the axis of the first rotating shaft, and when the first support arm and the second support arm are on the same line, the The pointer points to the zero point of the circular scale; a pointer is provided on the hinged end of the second support arm and the pushing device, and a circular scale matching the pointer is provided on the pushing device, so The center of the circular scale is on the axis of the second rotating shaft, and the pointer points to the zero point of the circular scale when the second support arm is on the same line as the pushing device.