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Interchangeable unicondylar femoral prosthesis system and knee joint system

A technology of unicompartmental femur and femoral prosthesis, which is applied in the field of medical devices and can solve problems such as re-osteotomy and drilling

Pending Publication Date: 2020-07-31
SUZHOU MICROPORT ORTHORECON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an interchangeable unicompartmental femoral prosthesis system and a knee joint system for how to avoid re-osteotomy and drilling of the patient when changing the prosthesis model during the operation

Method used

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  • Interchangeable unicondylar femoral prosthesis system and knee joint system
  • Interchangeable unicondylar femoral prosthesis system and knee joint system
  • Interchangeable unicondylar femoral prosthesis system and knee joint system

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Embodiment Construction

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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PUM

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Abstract

The invention relates to an interchangeable unicondylar femoral prosthesis system and a knee joint system. The interchangeable unicondylar femoral prosthesis system comprises at least two types of femoral prostheses, wherein each type of femoral prosthesis comprises an osteotomy surface used for being connected with a femur and an articular surface used for being matched with a tibia liner; a fixing part is arranged on each osteotomy surface; each articular surface comprises a posterior condylar articular surface, wherein the maximum distance between the fixing piece and the posterior condylearticular surface is recorded as a first distance, and the first distances of different types of femoral prostheses are the same. The interchangeable unicondylar femoral prosthesis system retains morebone mass of a patient, simplifies operation steps, shortens operation time and reduces infection probability.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an interchangeable unicompartmental femoral prosthesis system and a knee joint system. Background technique [0002] Unicompartmental replacement uses a minimally invasive incision while preserving the anterior and posterior cruciate ligaments of the knee joint. It has the advantages of less trauma, faster recovery, and better postoperative physiological activity. Therefore, unicompartmental replacement is widely used in unicompartmental surgery. In the treatment of osteoarthritis. Unicondylar arthroplasty involves replacing the patient's diseased femoral articular surface with a femoral prosthesis and replacing the patient's diseased tibial articular surface with a tibial insert, thereby allowing the patient to obtain a new knee joint. [0003] Before performing unicompartmental replacement, it is necessary to perform osteotomy and drilling of the patient's femur, so th...

Claims

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Application Information

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IPC IPC(8): A61F2/38
CPCA61F2/38A61F2/3859A61F2/389A61F2002/2825A61F2002/2892A61F2002/30731
Inventor 赵开宇孙延东史忠兵周星辰
Owner SUZHOU MICROPORT ORTHORECON CO LTD
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