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Osteotomy device

A technology for osteotomy and femur, which is applied in the field of osteotomy devices, and can solve the problems of complicated osteotomy operations, inability to adjust the osteotomy position of the femoral trochlea, etc.

Active Publication Date: 2019-10-08
SUZHOU MICROPORT ORTHORECON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide an osteotomy device for the defects that the current osteotomy device is cumbersome to operate, needs to be disassembled and replaced with different osteotomy plates, and cannot adjust the osteotomy position of the femoral trochlea.

Method used

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] In order to describe the structure of the above device more clearly, the present invention defines the terms "distal end" and "proximal end", and the above terms are commonly used terms in the field of medical devices. Specifically, "distal end" means the end away from the operator during the operation, and "near end" means the end close to the operator during the operation. by Figure 5 For example, Figure 5 The right side is the distal end, and th...

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Abstract

The invention relates to an osteotomy device, which comprises an osteotomy plate, a fixing plate and an adjusting structure. The osteotomy plate is mounted on the femur through the fixing plate, and two ends of the adjusting structure are respectively connected with the fixing plate and the osteotomy plate. The osteotomy plate slides to the left and right by the adjustment structure relative to the fixing plate; and the osteotomy plate has a femur osteotomy groove for four-sided osteotomy and a femur trochlear osteotomy groove for the femur trochlear osteotomy. By using the osteotomy device, the femur trochlear osteotomy can be continued without replacing the osteotomy plate after the four-sided osteotomy operation, which effectively reduces the number of instruments, avoids repeated disassembly and assembly, and simplifies the operation steps; the osteotomy device can conveniently adjust the left and right sliding of the osteotomy plate relative to the fixing plate by using the adjustment structure, and then adjust the osteotomy plate to the femur trochlear groove facing to the femur trochlear. The osteotomy accuracy of the femur trochlear is increased, and the influence of the abnormal sliding trajectory of the kneecap after the restoration of the prosthesis due to the inaccurate osteotomy position of the femur trochlear can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an osteotomy device. Background technique [0002] In total knee arthroplasty, femoral osteotomy is an extremely important step, because the inner surface of the existing femoral prosthesis is four-sided and bulges inward at the mid-femoral trochlea, so the doctor needs to process the femur to be in line with the prosthetic. The specific shape corresponding to the body is used to install the femoral prosthesis, that is, the four-sided osteotomy is performed on the distal surface of the femur (the surface connected with the prosthesis), and a concave shape is formed at the femoral trochlear. During this process, whether the osteotomy plate is firmly fixed, whether the repeated disassembly and assembly of the osteotomy plate is accurate, etc. will directly affect the effect of osteotomy. [0003] At present, when treating the anterior and posterior femoral condyles, do...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1657A61B17/1675A61B2017/564A61B17/155A61B17/151A61B17/56
Inventor 孙延东胡方遒赵开宇吴悠
Owner SUZHOU MICROPORT ORTHORECON CO LTD
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