Kirschner wire tensioning device

A K-wire tensioner and K-wire technology, applied in the field of medical devices, can solve the problems of secondary injury to patients, insufficient clamping force, small traction force, etc., and achieve convenient operation, large clamping force, and large traction force. Effect

Pending Publication Date: 2021-09-07
常州好利医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to overcome the problem that the traditional traction device in the prior art has insufficient clamping force when pulling the Kirschner wire, the traction force is small, and it is easy to cause secondary injury to the patient, and a Kirschner wire tensioner

Method used

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  • Kirschner wire tensioning device
  • Kirschner wire tensioning device
  • Kirschner wire tensioning device

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Embodiment Construction

[0031] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0032] like Figure 1-Figure 3A Kirschner wire tensioner shown includes a rotating drawing assembly, a supporting assembly and a clamping assembly. The rotating drawing assembly includes a fixed housing 1 and a rotating housing 9. The rotating housing 9 rotates and is fixedly installed in the axial direction. At one end of the fixed housing 1, the rotating nut 2 is coaxial and fixedly installed in the rotating housing 9. The rotating housing 9 is provided with a through hole 9-1 for Kirschner wires to pass through, and the rotating nut 2 is installed with internal threads. There is a hollow threaded tie rod 3;

[0033] The support assembly includes a support...

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PUM

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Abstract

The invention relates to a Kirschner wire tensioning device. A rotating nut is coaxially and rotatably mounted at one end of a fixed shell, a supporting shell is fixedly mounted at the other end of the fixed shell, a threaded pull rod is mounted in the rotating nut in a threaded mode, a tensioning block is rotatably and axially fixedly mounted at one end of the threaded pull rod, and a clamping block is slidably mounted in the tensioning block; the clamping block is further provided with containing through holes communicating with a mounting through hole, the containing through holes are circumferentially and evenly distributed along the central axis of the mounting through hole, a plurality of limiting balls are arranged in the containing through holes, the threaded pull rod drives the tensioning block to be away from the clamping block, and the tensioning block pushes the limiting balls to gather towards the central axis of the mounting through hole; and a kirschner wire is clamped by the limiting balls, and the kirschner wire is clamped more and more tightly by the limiting balls. The kirschner wire tensioning device is simple in structure and convenient to operate, and the kirschner wire drawing efficiency is improved. The kirschner wire is clamped in the mode that the tensioning block, the clamping block and the limiting balls are matched, the clamping force is large, the phenomenon of slipping is avoided, the medical quality is guaranteed, and secondary damage is avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a Kirschner wire tensioner. Background technique [0002] With the rapid development of orthopedic fixation series products, the requirements for the supporting instruments and tools are getting higher and higher, and the design requirements of the instruments and tools are more precise and humanized. [0003] At present, Kirschner wire is a commonly used internal fixation material in various orthopedics. It is used for fixing fractures with low stress such as short fractures or avulsion fractures, and is also used in the fixation of temporary fracture fragments in orthopedics operations. Due to wide application, the maximum diameter of the Kirschner wire gradually increases to 4 mm with the external fixation bracket, and external fixation locking nails are used to fix emergency large fractures such as pelvic fractures and calcaneal fractures. When using Kirschner wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88
CPCA61B17/8866
Inventor 张雪华刘利民彭爱民杨华清
Owner 常州好利医疗科技有限公司
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