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Limiting sleeve trephine for implementing experimental animal skull defect model surgery

A technology of experimental animals, limit sleeves, applied in the field of medical experiment research

Pending Publication Date: 2021-09-21
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of enough professional neurosurgeons who have mastered the technology of cranial punching, only a small number of patients have received intracranial pressure measurement and decompression treatment for cranial punching.

Method used

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  • Limiting sleeve trephine for implementing experimental animal skull defect model surgery
  • Limiting sleeve trephine for implementing experimental animal skull defect model surgery
  • Limiting sleeve trephine for implementing experimental animal skull defect model surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1: as Figure 1-4 As shown, a limit sleeve ring saw for performing surgery on the skull bone defect model of experimental animals includes a rotary ring saw device, an electric motor rotation mechanism and at least one external sleeve 110; the external external sleeve 110 protects the built-in The ring saw of the rotating ring saw device will not injure the operator and the surrounding tissue of the operation site; during the operation, one hand can hold the front end of the sleeve near the ring saw drill bit 102 tightly so that the ring saw drill bit 102 can drill and saw bone When the position is held stably; the rotary ring saw device is sleeved in the outer sleeve 110, and is driven to rotate by the electric motor rotation mechanism; the rotary ring saw device includes a ring saw drill bit 102, a connecting handle 104, a cross coupling module cover 106 and Coupling fork pin 107; ring saw drill bit 102 is connected with connecting handle 104, connecting ha...

Embodiment 2

[0075] Such as Figure 22-24 As shown, the outer sleeve 110 includes a sleeve front end 302 and a sleeve rear end 1100; the sleeve front end 302 and the sleeve rear end 1100 are screwed together through a thread 3040 or locked with a positioning pin, wherein the sleeve front end 302 is flush The rear end root of the part and the ring saw drill bit 102 is on the same vertical plane, and the sleeve front end 302 is made of plastic material; Remove the requirement to implement high temperature sterilization at the same time. In addition, for the convenience of clinical operation and the requirement of different drilling depths of the skull plate, the front end 302 of the sleeve is made of plastic material and made into a complete set of spare parts with different sequence lengths for one-time use during clinical operation.

[0076] Please refer to the description of Example 1 for other contents.

Embodiment 3

[0078] A telescoping guard device 400 is disposed between the outer sleeve 110 and the trephine drill bit 102; the telescoping guard device 400 moves relative to the outer sleeve 110 along the longitudinal direction of the outer sleeve 110 so that the telescoping guard device 400 moves in the longitudinal direction of the outer sleeve 110 Retracts upon contact with the drill-saw bone surface; encloses the trephine drill bit 102 within an additional telescoping guard assembly 400 . The retractable protective cover device 400 ensures that the drill bit 102 of the trephine saw will not be exposed outside when it is not in the working state of the drill saw.

[0079] The telescopic protective cover device 400 includes an embedded sleeve 404, a limit bolt 402 and a spring 406; the embedded sleeve 404 moves longitudinally through the spring 406, and a guide groove is formed on the embedded sleeve 404, and the limit bolt 402 passes through the outer The sleeve 110 abuts against the g...

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Abstract

The invention relates to a limiting sleeve trephine for implementing experimental animal skull defect model surgery. The limiting sleeve trephine comprises a rotary trephine device, an electric motor rotating mechanism and at least one outer sleeve. The rotary trephine device is sleeved in the outer sleeve and is driven by the electric motor rotating mechanism to rotate; the rotary trephine device comprises a trephine drill bit, a connecting handle, a cross coupling module sleeve and a coupling fork pin; the trephine drill bit is connected with the connecting handle, the connecting handle is connected with a rotating shaft in the electric motor rotating mechanism, and the rotating shaft is connected with the cross coupling module sleeve and the coupling fork pin; a combined mechanism of the outer sleeve and the trephine drill bit guarantees safety protection when the electric high-speed rotating trephine drill bit drills and saws bones, the bone drilling and sawing depth is accurately controlled, anti-skid positioning is achieved, and complete bone flaps of the drilled and sawed bones are moved out.

Description

technical field [0001] The present invention relates to a kind of medical experiment research, in order to establish the limited bone defect model of experimental animals, as well as the surgical purpose of craniotomy and skull perforation in clinical medicine, a newly created special drill for performing skull bone defect and skull perforation surgery Surgical instruments for sawing the skull. Background technique [0002] The experimental animal skull bone defect model has wide application value in the field of bone regeneration and bone biomaterial research, but the trepan saw or conventional grinding drill used in the traditional skull bone defect model surgery has obvious shortcomings in product structure and operation. First of all, the high-speed rotating trephine saw is completely exposed, which poses safety hazards to the operator and the surgical animals during the operation; second, the drill bit is very easy to slip on the surface of the skull when sawing the bon...

Claims

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Application Information

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IPC IPC(8): A61B17/14
CPCA61B17/14A61B17/147
Inventor 钱家杰陈立峰李超陈满涛
Owner ZHEJIANG UNIV
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