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Tibia pad prosthesis, tibia prosthesis and artificial knee joint

A tibial pad and prosthesis technology, which is applied in the field of tibial pad prosthesis, tibial prosthesis and artificial knee joint, can solve the problems such as panic of knee joint prosthesis system and discard of prosthesis, save operation time and facilitate operation. Effect

Pending Publication Date: 2018-02-16
北京安颂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the replacement of the surgical plan, there will be confusion in the preparation of the knee prosthesis system, and it may even lead to the scrapping of the opened prosthesis

Method used

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  • Tibia pad prosthesis, tibia prosthesis and artificial knee joint
  • Tibia pad prosthesis, tibia prosthesis and artificial knee joint
  • Tibia pad prosthesis, tibia prosthesis and artificial knee joint

Examples

Experimental program
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Effect test

Embodiment 1

[0080] see Figure 2-1 to Figure 8-3 As shown, the present embodiment provides a tibial liner prosthesis; see Figure 2-1 to Figure 6-4 A related schematic diagram of a PS-type and CR-type tibial liner prosthesis provided for this embodiment, wherein the CR insert or PS insert is connected to the tibial liner base body through a mortise and tenon structure and a screw. see Figure 7-1 to Figure 7-6 The relevant schematic diagrams of PS type and CR type of another tibial liner prosthesis provided for this embodiment, wherein, the CR insert or PS insert and the tibial liner base are connected by a mortise and tenon structure and two screws. see Figure 8-1 to Figure 8-3 The PS-type and CR-type related schematic diagrams of the third type of tibial liner prosthesis provided in this embodiment, wherein, the CR plug or PS plug and the tibial liner base are connected by threads, and the threads are not shown.

[0081] The sagittal plane in this embodiment is the plane that divide...

Embodiment 2

[0110] Embodiment 2 provides a tibial prosthesis, which includes the tibial liner prosthesis described in Embodiment 1, and the technical features of the tibial liner prosthesis disclosed in Embodiment 1 are also applicable to this embodiment. The technical features of a disclosed tibial liner prosthesis will not be described repeatedly.

[0111] Figure 9-1 to Figure 9-4 A related schematic diagram of a PS type and a CR type of a tibial prosthesis provided in this embodiment.

[0112] combine Figure 2-1 to Figure 8-3 , see Figure 9-1 to Figure 9-4 As shown, the tibial prosthesis provided in this embodiment includes the tibial liner prosthesis 200 ; and also includes the tibial tray prosthesis 300 .

[0113] The tibial tray prosthesis 300 includes a tibial base 310 and a fixing column 320 fixedly connected with the tibial base 310 ; the tibial tray prosthesis 300 is connected with the tibia of the human body through the fixing column 320 .

[0114] Optionally, the side o...

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Abstract

The invention relates to the technical field of medical instruments, in particular to a tibia pad prosthesis, a tibia prosthesis and an artificial knee joint. The tibia pad prosthesis comprises a tibia pad base body, a CR insert block and a PS insert block; the tibia pad base body comprises a pad top surface and a pad combination surface corresponding to the pad top surface, and the pad combination surface is used for being connected with the tibia support prosthesis; a base body groove is formed in the top surface; the CR insert block can be detachably connected with the tibia pad base body through the base body groove; the PS insert block can be detachably connected with the tibia pad base body through the base body groove. The tibia prosthesis includes the tibia pad prosthesis. The artificial knee joint comprises the tibia pad prosthesis or the tibia prosthesis. The tibia pad prosthesis, the tibia prosthesis and the artificial knee joint are provided so as to achieve conversion between the PS type and the CR type of the tibia prosthesis.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a tibial pad prosthesis, a tibial prosthesis and an artificial knee joint. Background technique [0002] In the artificial knee prosthesis system, there are two mainstream forms of knee prosthesis, one is the PS type tibial prosthesis with columns (see Picture 1-1 shown), the other is a CR tibial prosthesis without columns (see Figure 1-2 shown). Among them, the tibial prosthesis with uprights is matched with the femoral condyle prosthesis with cams, finally forming the assembly relationship of the PS type prosthesis. The column-free tibial prosthesis is matched with the cam-free femoral condyle prosthesis to form a combination relationship of CR-type prosthesis. Among them, the proper name of PS type is posterior stable type; the proper name of CR type is posterior cruciate ligament preserved type. [0003] In artificial knee replacement, the doctor will judge accor...

Claims

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Application Information

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IPC IPC(8): A61F2/38
CPCA61F2/389A61F2002/30507A61F2002/30329A61F2002/30383
Inventor 张晏萌
Owner 北京安颂科技有限公司
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