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File holding instrument

A file and instrument technology, applied in medical science, surgery, etc., can solve the problems of affecting the stability of the prosthesis, reducing the postoperative satisfaction of patients with the advantage of minimal trauma in minimally invasive surgery, to avoid soft tissue contusion, good surgical guarantee, and avoid surgery. The effect of fractures in

Inactive Publication Date: 2021-04-06
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient medullary cavity shaping will affect the stability of the prosthesis after installation, reduce the advantages of minimally invasive surgery and the satisfaction of patients after surgery

Method used

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, a file holding instrument of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0025] In order to solve the above technical problems, the present invention provides a file holding device,

[0026] The holding instrument is a double eccentric structure, including a hammer block 1, a file handle body 2, a handle 3, a shrapnel 6, a force arm 8, a locking head 9, and a file connection hole, wherein the hammer block 1 is fixedly connected to the The left end of the main body 2 of the file, the handle 3 is connected to the main body of the file through the pin one 4, the elastic piece 6 is connected with one end of the elastic piece 6 through the pin two 5, and the other end of the elastic piece 6 is connected with the force arm 8 , the arm 8 is slidably connected to the main body 2 of the fi...

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PUM

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Abstract

The invention provides a file holding instrument which is characterized in that the holding instrument is of a double-eccentric structure and comprises a hammering block, a file handle body, a handle, an elastic piece, a force arm, a locking head and a file connecting hole, the problem that soft tissue blocks the instrument in the medullary cavity shaping process during minimally invasive surgery is solved, and soft tissue contusion caused by the instrument is effectively avoided. The plastic direction of the file and the direction of the medullary cavity are kept consistent, intraoperative fracture caused by stress shielding is avoided, it is guaranteed that the plastic direction is better attached to the medullary cavity, the stability of the prosthesis after installation is guaranteed, better operation guarantee is provided for a patient and an operator, and the postoperative satisfaction degree of the patient is improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a file holding device. Background technique [0002] In artificial joint replacement surgery, a file is often needed to shape the medullary cavity. Therefore, the instrument for holding the file needs to have the functions of holding the file and completing reaming and removing the file. At present, the file holders commonly used in the medical market are all straight rod structures, which can well satisfy common hip joint operations. However, in minimally invasive hip arthroplasty, the surgical incision is usually only 10 cm, and it enters through the muscle space. When using the above-mentioned file holder to connect the file to plastic the medullary cavity, there is serious muscle blocking, which can easily cause soft tissue contusion. , Even the direction of the rasp and the medullary cavity are inconsistent due to occlusion, resulting in secondary fractures of the femur during the percus...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/164A61B17/1659A61B17/1666A61B2017/564
Inventor 侯宇丛史春宝郭静王振国岳术同朱树凯
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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