Knee joint tibial component

A technology for knee joints and tibia, applied in the direction of knee joints, elbow joints, joint implants, etc., can solve the problems of different degrees of softness and hardness, lack of tight fit between products and bones, and uneven support of tibial components, so as to promote bone The effect of growth

Pending Publication Date: 2017-09-12
SUZHOU SINOMED BIOMATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the current osteotomy of the tibia 103 is a planar osteotomy 102, and the bottom plane of the tibial component 101 is a single horizontal plane. Therefore, the peripheral support and internal area of ​​the tibial component of the knee joint have less contact pressure, which is not conducive to bone ingrowth.
At the same time, after the current tibial plane section, the medial and lateral sides are different in hardness and softness, and the support to the tibial component is unbalanced, resulting in a "seesaw" effect, and there is no tight fit between the product and the bone, which is not conducive to bone ingrowth

Method used

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  • Knee joint tibial component
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  • Knee joint tibial component

Examples

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0022] like figure 2 Shown is a schematic cross-sectional view of a knee tibial component provided by an embodiment of the present invention, wherein the knee tibial component 200 includes a contact surface 201 in contact with the osteotomy surface, and the contact surface 201 includes a protrusion protruding toward the osteotomy surface. surface 202 .

[0023] like image 3 Shown is a schematic view of the use of the tibial component of the knee joint provided by the embodiment of the present invention. exist image 3 In this example, the knee tibial component 200 is fixed to the patient's tibia 300 by bone ingrowth, the kn...

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Abstract

The invention provides a knee joint tibial component. The knee joint tibial component comprises a contact surface in contact with a tibial resected surface, wherein the contact surface comprises a surface protruded towards the tibial resected surface. The knee joint tibial component provided by the embodiment of the invention is provided with the surface protruded towards the tibial resected surface, therefore, the surface protruded towards the tibial resected surface, of the knee joint tibial component, is in press fit combination with a tibial resected concave surface, the aims of gradually tightening along with pressure increase is achieved, further initial fixation of a product is facilitated, and a better press fit environment is provided; bone ingrowth on a biological fixation coating or a trabecular structure of the knee joint tibial component is realized under the pressure action of endoskeleton and the knee joint tibial component, bone growth is promoted, and finally a biological fixing effect of the bone ingrowth is realized.

Description

technical field [0001] The present invention relates to knee tibial components. Background technique [0002] The knee tibial component is used for artificial joint replacement. The knee tibial component is fixed into the patient's tibia by bone ingrowth, and the knee tibial component is in contact with the tibial section. like figure 1 As shown, the current osteotomy of the tibia 103 is a planar osteotomy 102, and the bottom plane of the tibial component 101 is a single horizontal plane. Therefore, the peripheral support and internal area of ​​the tibial component of the knee joint have less contact pressure, which is not conducive to bone ingrowth. At the same time, after the current tibial plane cross-section, the medial and lateral sides are different in softness and hardness, and the support to the tibial component is unbalanced, resulting in a "seesaw" effect, and there is no tight fit between the product and the bone, which is not conducive to bone ingrowth. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/389A61F2002/30784A61F2002/30205A61F2002/30242A61F2002/30285A61F2310/00407A61F2310/00544A61F2310/00796
Inventor 朱忠林朱健
Owner SUZHOU SINOMED BIOMATERIALS CO LTD
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