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A medical grinding tool preventing rotation jamming

A cutting tool and grinding technology, which is applied in medical science, surgery, etc., can solve problems such as the connection handle being stuck, and achieve the effects of preventing slippage, good mechanical properties, good adaptability and accuracy

Pending Publication Date: 2019-01-18
CHONGQING XISHAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the deficiencies in the prior art and provide a medical grinding tool that prevents the deformation of the connecting handle from being stuck and difficult to unscrew after high-temperature sterilization

Method used

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  • A medical grinding tool preventing rotation jamming
  • A medical grinding tool preventing rotation jamming
  • A medical grinding tool preventing rotation jamming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Please refer to figure 1 , figure 1 It is a structural schematic diagram of the medical grinding tool for preventing rotation jamming of the present invention. A medical grinding tool for preventing jamming, the medical grinding tool for preventing rotation jamming includes a grinding head 1, a knife tube assembly 2, a connecting sleeve 3, a driving sleeve 4, a reciprocating driving member 5, and a connecting handle 6; The distal articulated grinding head 1 of the knife tube assembly 2; the rear end of the knife tube assembly 2 is equipped with a connecting sleeve 3; the outer circumference of the connecting sleeve 3 is equipped with a drive sleeve 4; the axial direction of the drive sleeve 4 is A connecting handle 6 is engaged; one end of the driving sleeve 4 is equipped with a reciprocating drive member 5; the reciprocating driving member 5 and the connecting handle 6 are plastic parts and have a threaded anti-locking mechanism 8; the reciprocating driving member 5 a...

Embodiment 2

[0068] Please refer to Figure 5 , Figure 5 It is the structural representation of the medical grinding tool in embodiment 2. This embodiment is basically the same as Embodiment 1, the difference is that in this embodiment, when the splines of the connecting handle 6 are arranged to engage with the drive sleeve 4 in the axial direction, the adjacent two adjacent teeth of the splines of the connecting handle 6 The included angle of the extension line of the side wall is 6°-10°. Under this angle distribution, it can not only ensure the guidance during alignment, but also effectively prevent the slippage problem during rotation.

Embodiment 3

[0070] Please refer to Figure 6 , Figure 6 It is the structural representation of the medical grinding tool in embodiment 3. This embodiment is basically the same as Embodiment 1, the difference is that when the connecting handle 6 in this embodiment is connected and assembled with the reciprocating drive member 5, a groove 64 is provided on the connecting handle 6 and assembled in the groove 64 The rubber ring 65 is installed with the groove 64 through an interference fit. In this embodiment, a new rubber ring 65 is added for interference fit with the groove 64 to provide friction in the circumferential direction and prevent the thread from loosening.

[0071] A medical grinding tool of the present invention that prevents rotation from being stuck prevents the connecting handle 6 from being stuck due to deformation after high-temperature disinfection and is difficult to unscrew, so that the rotation and pitching of the grinding head 1 can be smoothly realized, and the ope...

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Abstract

The invention relates to a medical grinding tool preventing rotation jamming. The medical grinding tool for preventing rotation jamming comprises a grinding head, a knife tube assembly, a connecting sleeve, a driving sleeve, a reciprocating driving member and a connecting handle. The distal end of the knife tube assembly is hinged with a grinding head. The front end of the knife tube assembly is provided with a grinding head. The rear end of the knife tube assembly is provided with a connecting sleeve. The outer periphery of the connecting sleeve is provided with a driving sleeve. The axial engagement of the driving sleeve is provided with a connecting handle. The connecting handle butts against the outer circumferential surface of one end of the driving sleeve and is provided with a reciprocating driving part. The reciprocating drive member and the connecting handle are both plastic parts and have a screw thread preventing locking mechanism. The invention has the advantages that the medical grinding tool which prevents the rotation from being stuck can prevent the deformation of the connecting handle from being stuck after high-temperature sterilization and is difficult to be rotated out, thereby realizing the rotation and pitching motion of the grinding head smoothly, having good adaptability and accuracy to the operation part and improving the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical grinding tool for preventing rotation jamming. Background technique [0002] In the process of orthopedic surgery, it is sometimes necessary to grind the bone tissue in the body. In order to meet the needs of the operation, the grinding tool is constantly updated and improved. The existing grinding tool has the function of adjusting the longitudinal and circumferential position of the grinding head during the operation, which has better adaptability and accuracy to the operation site, can improve the operation efficiency, shorten the postoperative recovery period, and reduce the While the patient is in pain, the treatment cost is reduced; the cutter is detachable as a whole, the structure is simple, the transmission chain is short, easy to control stably, and the operation efficiency is high. However, there are still the following defects and deficiencies i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16
CPCA61B17/16A61B2017/00367A61B2017/564A61B2017/1602
Inventor 郭毅军覃聪张新云杨永波
Owner CHONGQING XISHAN SCI & TECH
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