CN215458292U

CN215458292U - Intervertebral distraction device for spinal surgery

Info

Publication number: CN215458292U
Application number: CN202121910178.1U
Authority: CN
Inventors: 冉林川; 张新安
Original assignee: Zhengzhou Central Hospital
Current assignee: Zhengzhou Central Hospital
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-11
Anticipated expiration: 2031-08-16

Abstract

An intervertebral expanding device for spinal surgery effectively solves the problems that the existing surgical incision is inconvenient to expand and wastes time and labor; the device comprises a shell in the left-right direction, wherein the shell is hinged with two swing plates which are bilaterally symmetrical and in the front-back direction, the front end of each swing plate penetrates through the shell and is provided with an L-shaped supporting plate, a rotating shaft which is axially arranged up and down and is positioned at the left side of each swing plate is rotatably connected in the shell, a rotating plate in the front-back direction is arranged on the rotating shaft, the front end and the rear end of each rotating plate are respectively hinged with a connecting plate in the left-right direction, the right end of the connecting plate in the front side is hinged with the upper end of the swing plate in the left side, and the right end of the connecting plate in the rear side is hinged with the connecting plate in the right side; the spine operation knife is ingenious in design and convenient to use, and the rotating handle is rotated to drive the two supporting plates to move back and forth through the connecting plate, so that the spine operation knife edge is unfolded, and medical staff can perform operations better.

Description

Intervertebral distraction device for spinal surgery

Technical Field

The utility model relates to the technical field of orthopedics, in particular to an intervertebral distraction device for spinal surgery.

Background

When the posterior spinal surgery is performed in an orthopedic department, medical staff usually need to open an operation incision so as to obtain a sufficient operation visual field, most of the existing opening methods are manually opened and fixed by using forceps for the medical staff, so that the workload of the medical staff is increased, and the long-time supporting medical staff can not effectively support the operation due to the fact that the arms are limp and numb easily, and the operation process is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide the intervertebral distraction device for the spinal surgery, which effectively solves the problems that the existing surgical incision is inconvenient to distract and wastes time and labor.

The technical scheme includes that the device comprises a left-right shell, two bilaterally symmetrical swing plates in the front-back direction are hinged in the shell, an L-shaped supporting plate penetrates through the shell at the front ends of the swing plates, a rotating shaft which is axially arranged up and down and is positioned on the left side of the swing plates is rotatably connected in the shell, a front-back rotating plate is arranged on the rotating shaft, left-right connecting plates are hinged at the front ends and the back ends of the rotating plate respectively, the right end of the front connecting plate is hinged with the upper end of the left swing plate, and the right end of the rear connecting plate is hinged with the right connecting plate.

The spine operation knife is ingenious in design and convenient to use, and the rotating handle is rotated to drive the two supporting plates to move back and forth through the connecting plate, so that the spine operation knife edge is unfolded, and medical staff can perform operations better.

Drawings

FIG. 1 is a front isometric view of the present invention.

FIG. 2 is a top isometric view in full section of the present invention.

FIG. 3 is a front elevational perspective view, in full section, of the present invention.

Figure 4 is a cutaway top isometric view of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

By figure 1 to 4, casing 1 including the left and right directions, articulated in the casing 1 have two bilateral symmetry and fore-and-aft direction's

swing board

2, 2 front ends of swing board run through casing 1 and be equipped with the fagging 3 of L shape, the pivot 4 that the axial just is located swing board 2 left side about 1 internal rotation of casing is connected with, be equipped with fore-and-aft direction's commentaries on classics board 5 on the pivot 4, both ends articulate respectively around the commentaries on classics board 5 has the connecting plate 6 of left and right directions, the connecting plate 6 right-hand member of front side is connected with articulated on the left swing board 2, the connecting plate 6 right-hand member of rear side is connected with the connecting plate 6 on right side is articulated.

In order to facilitate the medical staff to limit the supporting plate 3, the rotating shaft 4 is coaxially provided with a ratchet wheel 7, the front end of the shell 1 is hinged with a pawl 8 in the left-right direction, the left end of the pawl 8 penetrates through the shell 1 and can be inserted between two adjacent teeth of the ratchet wheel 7, and the right end of the pawl 8 is connected with the shell 1 through a pressure spring 9.

In order to facilitate the reset of the supporting plate 3, the ratchet wheel 7 is connected with the shell 1 through a torsion spring 10.

In order to facilitate the medical staff to adjust the height of the supporting plate 3, the lower end of the shell 1 is provided with an up-down axial telescopic rod 11.

In order to facilitate medical staff to fix the shell 1, the lower end of the telescopic rod 11 is provided with a fixed frame 12 with a right opening, the lower end of the fixed frame 12 is in threaded connection with a screw 13 in the vertical axial direction, and the upper end of the screw 13 penetrates through the fixed frame 12 and is provided with a clamping plate 14 in the front-back direction.

In order to facilitate the operation of medical staff, the upper end of the rotating shaft 4 penetrates through the shell 1 and is coaxially provided with a rotating handle 15.

When the medical support plate is used, a medical worker clamps the fixing frame 12 on a bed plate, rotates the screw 13 clockwise, drives the clamping plate 14 to move upwards while rotating the screw 13 clockwise, the clamping plate 14 moves for a certain distance and then contacts with the bed plate, the shell 1 and the bed plate are fixed relatively, and the medical worker adjusts the telescopic rod 11 until the supporting plate 3 is at a proper height;

at the moment, the medical staff makes the supporting plate 3 contact with the left side and the right side of the knife edge and rotates the rotating handle 15 anticlockwise, the rotating handle 15 drives the rotating shaft 4 to rotate anticlockwise, the rotating shaft 4 drives the ratchet wheel 7 to rotate anticlockwise while rotating, the ratchet wheel 7 drives the torsion spring 10 to rotate anticlockwise while rotating, so that the torsion spring 10 has clockwise torsion, the ratchet wheel 7 simultaneously rotates and extrudes the left end of the pawl 8 to swing forwards, so that the right end of the pawl 8 swings backwards and compresses the pressure spring 9, so that the pressure spring 9 has forward pressure, after the left end of the pawl 8 swings forwards by a certain angle, the pawl 8 is far away from between two adjacent teeth of the ratchet wheel 7, the limit on the rotating shaft 4 is released, the rotating shaft 4 drives the rotating plate 5 to rotate anticlockwise, the rotating plate 5 simultaneously drives the rear ends of the two swinging plates 2 to swing oppositely through the connecting plate 6, so that the front ends of the two swinging plates 2 are driven to swing back;

the front ends of the two swing plates 2 swing back to back and simultaneously drive the supporting plates 3 on the corresponding sides to move back and forth, the two supporting plates 3 move back and forth and simultaneously open the surgical incision of the patient, at the moment, the left end of the pawl 8 swings backwards due to the pressure of the pressure spring 9 until the pawl is inserted between two adjacent teeth of the ratchet wheel 7 again, and the limiting of the supporting plates 3 is realized, so that a wider visual field is provided for medical personnel, and the better operation is facilitated;

when the operation is finished and the surgical knife needs to be unfolded, the medical staff presses the right end of the pawl 8 backwards to the pawl 8 to release the limit of the rotating shaft 4, at the moment, the rotating shaft 4 rotates clockwise due to the clockwise torsion of the torsion spring 10, the rotating shaft 4 drives the rotating plate 5 to rotate clockwise, the rotating plate 5 drives the rear ends of the two swinging plates 2 to swing back and forth through the connecting plate 6, so that the front ends of the two swinging plates 2 are driven to swing oppositely, the two supporting plates 3 are driven to swing oppositely through the swinging plates 2, after swinging for a certain angle, the supporting plates 3 return to the initial position, and the unfolding of the surgical knife edge is released;

medical personnel anticlockwise rotate screw rod 13 this moment, and screw rod 13 anticlockwise rotation drives splint 14 downstream simultaneously, and splint 14 removes the contact that breaks away from with the bed board after a distance, and medical personnel take off casing 1 this moment can.

The medical support plate is simple in structure, novel in conception, convenient to use and high in practicability, and is provided with the shell, the rotating shaft, the rotating plate, the connecting plate, the swinging plate, the support plate and the like, so that medical staff can conveniently prop open an operation knife edge of a patient, the operation can be better performed, the workload of the medical staff is reduced, the telescopic rod is arranged, the medical staff can conveniently adjust the height of the support plate, and the ratchet wheel, the pawl and the like are arranged, so that the medical staff can conveniently limit the support plate.

Claims

1. The utility model provides a spinal surgery intervertebral struts device, casing (1) including the left and right sides direction, a serial communication port, it has two bilateral symmetry and fore-and-aft direction's swing board (2) to articulate in casing (1), swing board (2) front end runs through casing (1) and is equipped with fagging (3) of L shape, axial just is located pivot (4) of swing board (2) left side about casing (1) internal rotation is connected with, be equipped with the commentaries on classics board (5) of fore-and-aft direction on pivot (4), both ends articulate respectively around commentaries on classics board (5) have left and right direction's connecting plate (6), connecting plate (6) right-hand member and left swing board (2) upper end of front side are articulated to be connected, connecting plate (6) right-hand member and the connecting plate (6) on right side of rear side are articulated to be connected.

2. The intervertebral distraction device according to claim 1, wherein the rotating shaft (4) is coaxially provided with a ratchet gear (7), the front end of the housing (1) is hinged with a left-right pawl (8), the left end of the pawl (8) penetrates through the housing (1) and can be inserted between two adjacent teeth of the ratchet gear (7), and the right end of the pawl (8) is connected with the housing (1) through a compression spring (9).

3. The intervertebral distraction device according to claim 2, wherein the ratchet-toothed wheel (7) is connected to the housing (1) via a torsion spring (10).

4. The intervertebral distraction device according to claim 1, wherein the lower end of the housing (1) is provided with an upper and lower axial telescopic rod (11).

5. The intervertebral distraction device according to claim 4, wherein the lower end of the telescopic rod (11) is provided with a fixed frame (12) with a right opening, the lower end of the fixed frame (12) is connected with a screw rod (13) with an upper and lower axial direction by screw threads, and the upper end of the screw rod (13) penetrates through the fixed frame (12) and is provided with a splint (14) in the front-back direction.

6. The intervertebral distraction device according to claim 1, wherein the upper end of the rotating shaft (4) penetrates through the housing (1) and is coaxially provided with a rotating handle (15).