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A limit sleeve ring saw

A technology of limiting sleeve and trephine, which is applied in the field of medical experimental research and achieves the effect of simple operation method, saving time and money, and low power consumption

Active Publication Date: 2020-04-14
王力平
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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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  • A limit sleeve ring saw
  • A limit sleeve ring saw
  • A limit sleeve ring saw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] like Figure 1-15 The limit sleeve ring saw shown includes an inner ring saw and a ring saw sleeve 110; the inner ring saw is sleeved in the ring saw sleeve 110 and driven to rotate by a motor; the inner ring saw includes a ring saw drill bit 102, The connecting rod shaft 104, the coupling A106 and the coupling fork pin 107; the ring saw drill bit 102 is arranged on one end of the connecting rod shaft 104, and the front end of the ring saw drill bit 102 is provided with a trephine saw tooth 130, and the trephine saw tooth 130 can extend out of the ring saw The front end of the sleeve 110 is at a certain distance, and the other end of the connecting rod shaft 104 is connected to the motor shaft 206 through a coupling A106 and a coupling fork pin 107 . The external trephine sleeve 110 protects the built-in internal trephine from injuring the operator and the surrounding tissues of the surgical site; it is possible to hold the front end of the trephine sleeve tightly with ...

Embodiment 2

[0072] like Figures 16-21 As shown, the motor 200 includes a motor housing 208, a motor shaft 206, and a coupling B202; the coupling B202 is provided with a coupling B groove 204 with a fan-shaped opening, and the coupling A106 is connected to the coupling B202. The coupling fork pin 107 is stuck in the groove 204 of the coupling B. The limit sleeve ring saw is embedded and connected with the coupling A106 and the coupling B groove 204 of the shaft coupling B, so that the sleeve ring saw is easy to load and unload. During the actual loading and unloading operation, the coupling A106 can easily slide into the coupling B202 on the motor shaft 206, and the coupling fork shaft 107 on the coupling A can slide freely into the fan-shaped opening coupling B of the coupling B202 Groove 204, this kind of fan-shaped modular embedded coupling connection is very easy for users to install and disassemble, and their embedded coupling does not need to pay attention to alignment adjustment, ...

Embodiment 3

[0074] like Figure 22-24 In the limiting sleeve ring saw shown, the ring saw sleeve includes a front end sleeve 302 and a main section ring saw sleeve 306 ; The detachable front sleeve 302 part and the built-in trephine drill bit 102, as the effective working part of performing the operation, can be conveniently taken off together for high-temperature sterilization. In addition, for the convenience of clinical operations and the requirement of different drilling depths of the skull plate, the front sleeve 302 can be made of plastic material to make a complete set of spare parts with different sequence lengths for one-time use during clinical operations.

[0075] Please refer to the description of Example 1 for other contents.

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PUM

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Abstract

A trephine having a limiting sleeve (100), comprising a motor (200), an internal trephine, and at least one trephine sleeve (110); the trephine sleeve (110) is in rigid connection with a motor housing (208); the internal trephine is nested in the trephine sleeve (110) by means of at least two bearings (108, 112) and is driven, by means of the motor (200), to rotate; the internal trephine comprises a trephine drill bit (102), a connecting rod shaft (104), a coupling A (106), and a coupling pin (107); the trephine drill bit (102) is provided at one end of the connecting rod shaft (104), trephine sawteeth (130) are provided at the front end of the trephine drill bit (102), the trephine sawteeth (130) can extend out of the front end face (126) of the trephine sleeve for a certain distance, and the other end of the connecting rod shaft (104) is connected to a motor rotating shaft (206) by means of the coupling A (106) and the coupling pin (107). The external trephine sleeve (110) defines and adjusts the cutting depth (122a) of the internal trephine, while protecting a surgery operator and the tissue around a surgical site from being injured by a trephine rotating at a high speed; moreover, by drilling using the trephine having a limiting sleeve (100), a bone flap can be completely removed and retrieved from a trephined bone. The present invention realizes standardization and repetition of cranial defect (502) and drilling surgery, and makes the surgery simple, easy to operate, safe and reliable, efficient, and is less traumatic.

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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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/14
CPCA61B17/14
Inventor 王力平
Owner 王力平
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