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A positioning tool for osteotomy

An osteotomy and tool technology, applied in the field of osteotomy positioning tools, can solve the problems of low operation efficiency, low accuracy of femoral valgus angle, inconvenient disassembly and assembly of femoral osteotomy blocks, etc., so as to simplify the surgical positioning process and ensure surgical cutting. Bone accuracy and improved surgical efficiency

Active Publication Date: 2022-03-29
JINGWEI MEDICAL EQUIP MFG SHENZHEN CO LTD
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Problems solved by technology

[0003] At present, there are still many inconveniences when performing osteotomy on the femur, for example, the accuracy of the femoral valgus angle is not high, it is inconvenient to disassemble and assemble the femoral osteotomy block, and it is inconvenient to adjust the osteotomy block when the osteotomy position needs to be adjusted during the osteotomy process. , and most of the positioning methods are screwed or nailed, and the operation efficiency is low

Method used

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  • A positioning tool for osteotomy
  • A positioning tool for osteotomy
  • A positioning tool for osteotomy

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Embodiment Construction

[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Taking the distal femur osteotomy as an example, a flat osteotomy knife is used.

[0026] refer to Figure 1 to Figure 5 , an osteotomy positioning tool comprising:

[0027] The femoral osteotomy block 1 is provided with two symmetrical osteotomy grooves 11 and a plurality of equidistant positioning holes 12 groups running through the two corresponding end faces, and the side of the femoral osteotomy block 1 away from the positioning holes 12 extends outward. There is a connecting portion 13;

[0028] The osteotomy groove 11 is used to play a guiding role when the osteotomy knife cuts the bone. Generally, before the osteotomy, the femoral osteotomy block 1 is positioned on the femur through the positioning hole 12 by the ...

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Abstract

The invention relates to the technical field of medical devices, in particular to an osteotomy positioning tool, comprising: a femoral osteotomy block, provided with two symmetrical osteotomy grooves, a plurality of equidistant positioning hole groups, and a connecting part; an osteotomy positioning tool The side part of the shell is provided with a notch, and the other two adjacent corresponding sides are provided with a clamping device, the clamping device is adapted to the connecting part, and the side part of the osteotomy positioning shell is provided with a swing cavity for swinging An opening bottom edge of the cavity is extended outwards with a swing seat, and the end of the swing seat is provided with a pressing limit device; one end of the medullary cavity positioning seat is axially connected to the inside of the swing cavity, and the other end is connected to the limit part of the press limit device. Adaptation realizes that the actions of osteotomy, medullary cavity positioning, extramedullary positioning and valgus involved in the osteotomy of the distal femur are integrated on one osteotomy positioning shell, which improves the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an osteotomy positioning tool. Background technique [0002] Osteoarthritis (OA) is a chronic joint disease characterized by degeneration and destruction of articular cartilage and bone hyperplasia. It has become one of the most common causes of chronic disability in middle-aged and elderly people. Knee replacement is currently the Mature surgical techniques in joint surgery have an absolute surgical effect on alleviating knee joint pain and deformity in elderly patients. With the rapid development of knee prostheses today, the key to the efficacy of knee surgery is still the surgical technique, and the accuracy of the force line of knee replacement is closely related to the long-term life of the prosthesis. [0003] At present, there are still many inconveniences when performing osteotomy on the femur, for example, the accuracy of the femoral valgus angle is not hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/17
CPCA61B17/1764A61B17/1732
Inventor 不公告发明人
Owner JINGWEI MEDICAL EQUIP MFG SHENZHEN CO LTD
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