Bone cutter

A technology of osteotomy and bone surface, applied in the direction of bone drill guidance, medical science, surgery, etc., can solve the problems of anterior condyle overcut and affect the safety of surgical operation, so as to reduce overcut, operation time and equipment Effect

Pending Publication Date: 2019-07-09
BEIJING NATON INST OF MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing osteotomy is difficult to achieve the alignment of the osteotomy surface and the real line of force of the femur, and this osteotomy scheme is likely to cause overcutting of the anterior condyle, which affects the safety of the operation

Method used

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Embodiment Construction

[0013] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0014] Relative terms such as "lower" or "bottom" and "higher" or "top" may be used in the embodiments to describe the relative relationship of one component of an icon to another component. It will be appreciated that if the illustrated device is turned over so that it is upside down, components described as being on the "lower" side would become components on the "higher" side. In addition, when a certain component is “on” ...

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Abstract

The invention provides a bone cutter which comprises a bone cutting plate and a front inclination backing plate. The bone cutting plate is provided with a first surface, a second surface and a bone cutting groove, wherein the first surface and the second surface are opposite, and the bone cutting groove penetrates the first surface and the second surface. The front inclination backing plate is provided with a third surface and a fourth surface which are opposite, the front inclination backing plate is hinged to the bone cutting plate and can rotate around the bone cutting plate, and the thirdsurface of the front inclination backing plate is fitted with a bone surface. After a traditional distal femur is cut, accurate bone cutting with an inclination angle can be performed, all bone cutting surfaces are matched with real force lines of the femur, the bone cutter is accurate in bone cutting and positioning in a surgery, excessive cutting is greatly decreased in the preartis bone cuttingprocess, and safety is effectively ensured.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an osteotomy device. Background technique [0002] During femoral osteotomy for knee replacement, the osteotomy is usually performed using an osteotome. One surface of the osteotomy fits the femur, and the osteotomy is achieved through the osteotomy groove on the osteotomy. [0003] A large number of experiments have proved that since the femur has an anterior arch structure, the position of the medullary cavity is not on the same plane as the force line, but should follow the state of the anterior arch and be tangent to it, with a forward angle. However, the traditional femoral osteotomy aims at the line of force that is parallel to the medullary cavity, and then completes the entire osteotomy of the femur. It is difficult for the existing osteotomy device to achieve the coincidence of the osteotomy surface and the real line of force of the femur, and this osteotomy scheme m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16A61B17/17
CPCA61B17/1657A61B17/1662A61B17/1732A61B17/1739A61B2017/564
Inventor 曲铁兵丁玉宝宋大勇董骧
Owner BEIJING NATON INST OF MEDICAL TECH CO LTD
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