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Tibial prosthesis and knee joint prosthesis comprising same

A knee joint and tibia technology, applied in the field of knee joint prosthesis, can solve the problems of high replacement surgery cost, heavy surgical cost burden on patients, and inability to prevent product fretting.

Pending Publication Date: 2021-06-18
BEIJING MONTAGNE MEDICAL DEVICE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Tibial components used in current artificial knee replacements fall into two general categories. One type of tibial component is assembled via a mechanical press-fit lock, and in order to meet clinical needs, manufacturers are often required to produce multiple types that differ only in thickness. This type of tibial component, which leads to high cost of replacement surgery, heavy burden on patients’ surgical expenses, and cannot prevent product micro-movement; the other type is that the tibial component is a whole, and its whole body material is ultra-high molecular weight polyethylene. In order to meet clinical needs, manufacturers are also required to produce a variety of such tibial components that differ only in thickness, which also leads to higher cost of replacement surgery and a heavier burden on patients' surgical expenses

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  • Tibial prosthesis and knee joint prosthesis comprising same
  • Tibial prosthesis and knee joint prosthesis comprising same
  • Tibial prosthesis and knee joint prosthesis comprising same

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Embodiment Construction

[0038] The invention will now be described in more detail with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as necessarily limited to the exemplary embodiments disclosed herein. Rather, these exemplary embodiments are provided merely to illustrate the present invention and to convey the concept of the present invention to those skilled in the art.

[0039] As used herein, the terms "proximal / proximal P" and "distal / distal D" refer to the limb relative to the trunk position, where the term "proximal / proximal P" is the end of the limb, bone or prosthesis closer to the torso and the term "distal / distal D" is the end of the limb, bone or prosthesis farther from the torso , and the term "proximal / proximal P" together with the term "distal / distal D" defines the proximal-distal direction PD. Those skilled in the art will understand that,...

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Abstract

The invention relates to a tibial prosthesis and a knee joint prosthesis comprising the same. The tibial prosthesis is established in a modular manner so as to be able to reduce surgical costs, relieve patient burden, and eliminate micro-motion, thereby eliminating invalidation caused by micro-motion, greatly prolonging service life thereof, and preventing a patient from frequently accepting a replacement surgery.

Description

technical field [0001] The present invention relates to the field of medical equipment for orthopedic surgery, in particular to a tibial prosthesis implanted in a patient's body to realize the function of the patient's knee joint in postoperative daily life and a knee joint prosthesis including the tibial prosthesis. Background technique [0002] Artificial knee replacement is a kind of orthopedic surgery that uses artificial biomaterials to replace human diseased joints and restore the normal physiological functions of the knee joint. During the operation, the doctor needs to perform a characteristic osteotomy on the patient's knee joint to match the artificial joint prosthesis and restore the best stable form of the knee joint. [0003] After the osteotomy of the knee joint lesion, according to the preoperative planning and intraoperative osteotomy data, the doctor will implant the tibial component and femoral component of the knee joint prosthesis of appropriate specifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/389A61F2/38A61F2/3859A61F2/30721A61F2002/30448
Inventor 李子欣张文彪许志勇
Owner BEIJING MONTAGNE MEDICAL DEVICE
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