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Dagger-shaped bush-hook for minimally invasive spine surgery under microscope

A minimally invasive surgery and microscopic technology, which is applied in surgery, endoscopic cutting instruments, medical science, etc., can solve the problems of difficult excision operation with a scalpel, and achieve convenient surgical operation, reduce space occupation, and reduce the risk of nerve damage Effect

Inactive Publication Date: 2021-11-16
张晗祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects in the prior art, the present invention provides a Ge-type hook knife for minimally invasive spinal surgery under a microscope to solve the problem that the scalpel is difficult to perform resection in the spinal canal in the existing intervertebral disc removal operation

Method used

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  • Dagger-shaped bush-hook for minimally invasive spine surgery under microscope
  • Dagger-shaped bush-hook for minimally invasive spine surgery under microscope

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1, by figure 1 Given, the present invention is a Ge-type hook knife used for minimally invasive spinal surgery under a microscope, including a knife head part 1, the top of the knife head part 1 is fixedly connected with a knife handle 4, and the top of the knife handle 4 is provided with The knife handle 5, the knife head part 1 is composed of a cutting knife 2 and a draw hook 3, and the draw hook 3 is laterally parallel and fixedly connected above the edge of the cutting knife 2;

[0022] In this embodiment, the cutting knife 2 and the drag hook 3 are located in the same plane. When cutting the intervertebral disc, the drag hook 3 can effectively block the nerve root from the cutting edge as the cutting knife 2 moves up and down or inside and outside.

[0023] Further, the shape of the handle 4 is a flat elliptical cylinder or sheet, which is convenient for the handle 4 to enter the inside of the human body along the window of the wound for operation. When...

Embodiment 2

[0030] Embodiment 2, by figure 2 Given, compared with embodiment 1, the difference is:

[0031] The present invention is a Ge-type hook knife used for minimally invasive spinal surgery under a microscope, comprising a knife head part 1, a knife handle 4 is fixedly connected to the top of the knife head part 1, and a knife handle 5 is provided on the top of the knife handle 4, The cutter head part 1 is composed of a cutting knife 2 and a draw hook 3, and the draw hook 3 is laterally and vertically fixedly connected above the edge of the cutting knife 2.

[0032] In this embodiment, the drag hook 3 and the cutting knife 2 are respectively located in different planes, and are arranged perpendicular to each other. When cutting the intervertebral disc, the drag hook 3 moves up and down or inside and outside with the cutting knife 2, so that the nerve root can be effectively blocked by the blade. Open, through this vertical relationship, the doctor only needs to hold the scalpel i...

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Abstract

The invention belongs to the field of surgical instruments, and provides a dagger-shaped bush-hook for a minimally invasive spine surgery under a microscope, which comprises a knife head part, a knife handle is fixedly connected to the top of the knife head part, a knife handle is arranged at the top of the knife handle, and the knife head part consists of a cutting knife and a drag hook, The drag hook is laterally and fixedly connected above the cutting edge of the cutting knife; the cutter handle is of a flat elliptic cylinder or sheet structure; the joint of the bottom of the cutter handle and the cutter head part is designed into a smooth curve; the knife handle is designed to be bent by double 90 degrees. According to the dagger-shaped bush-hook for the spine minimally invasive surgery under the microscope, the cutter and the drag hook are fixed into a whole through the tool bit part, the space occupied by surgical instruments can be reduced, and a good view field is provided for the surgery. The cutting knife is used for surgical cutting, the drag hook can effectively separate nerve roots when moving up and down along with the cutting knife, and the risk that the nerve roots are scratched by the knife edge to cause nerve injury is reduced.

Description

technical field [0001] The invention relates to the field of surgical instruments, in particular to a Ge-shaped hook knife used for minimally invasive spinal surgery under a microscope. Background technique [0002] In the intervertebral discectomy, there is a step of cutting the fibrous annulus of the herniated intervertebral disc in order to remove the herniated intervertebral disc tissue. However, when performing discectomy under a microscope, due to the limited operating field and the limited range of lamina fenestration, the following are often faced question; [0003] (1) The caliber of the operating channel under the microscope is limited, and the operator operates the instrument with both hands, which may also block the surgical field; [0004] (2) Due to the small opening range of the laminae, the removal of too much bone will affect the stability of the spine. Generally, the window opening range should be reduced as much as possible. After accommodating instrument...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16A61B17/32A61B17/3211A61B17/02A61B17/00
CPCA61B17/1659A61B17/1671A61B17/320016A61B17/3211A61B17/00234A61B17/0218A61B2017/00261
Inventor 张晗祥袁浩王翀
Owner 张晗祥
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