Minimally invasive implantation tool suitable for memory alloy orthopedic implant

A technology of memory alloy and orthopedics, applied in the direction of joint implants, joint implants, femoral heads, etc., can solve the problems of inaccurate implantation position and inability to complete implantation, and achieve convenient operation, ensure operation stability, The effect of simple structure

Pending Publication Date: 2020-08-11
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For orthopedic implants made of memory alloy materials, during the implantation process, due to temperature reasons, the orthopedic implants will start to restore their shape before reaching the predetermined position, resulting in inaccurate implantation positions or even failure to complete the implantation

Method used

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  • Minimally invasive implantation tool suitable for memory alloy orthopedic implant
  • Minimally invasive implantation tool suitable for memory alloy orthopedic implant
  • Minimally invasive implantation tool suitable for memory alloy orthopedic implant

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the minimally invasive implant tool suitable for memory alloy orthopedic implants disclosed by the present invention includes a sleeve 2, and the sleeve 2 is provided with a pushing mechanism for pushing the orthopedic implants to move axially along the sleeve 2; the pushing mechanism includes Sliding block 3, screw rod 4, cap body 6, sliding block 3 and the inner wall of sleeve 2 are axially slidably matched, and the upper end of sliding block is arc surface 31, and the lower end of sliding block 3 is provided with pit 32, and the front end of screw rod 4 and recessed The pit 32 is adapted, and the cap body 6 is threadedly connected to the lower end of the sleeve 2. Specifically, the cap body...

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Abstract

The invention discloses a minimally invasive implantation tool suitable for a memory alloy orthopedic implant. The minimally invasive implantation tool suitable for the memory alloy orthopedic implantcomprises a sleeve, wherein the sleeve is provided with a pushing mechanism used for pushing the orthopedic implant to move in the axial direction of the sleeve; and a water cooling structure is arranged in the side wall of the sleeve, and a water inlet and a water outlet of the water cooling structure are located in the lower portion of the sleeve. According to the tool, smooth implantation of the orthopedic implant made of the memory alloy material can be guaranteed, and the situation that in the implantation process, the orthopedic implant begins to recover the shape when the orthopedic implant does not reach the preset position due to the temperature, and consequently the implantation position is inaccurate and even implantation cannot be completed is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a minimally invasive implant tool suitable for memory alloy orthopedic implants. Background technique [0002] Avascular necrosis of bone is a common and frequently-occurring disease in orthopedics. The destruction of bone blood supply caused by various reasons can lead to the death of bone active components. It is mainly absorbed, making the subsidence area more fragile. [0003] One of the currently existing treatment methods is to support it with a support device. [0004] Some existing support devices use memory alloy materials, such as patent application (application number: 201110161085.8) discloses a nickel-titanium memory alloy umbrella-titanium cage femoral head internal support, which is composed of nickel-titanium memory alloy umbrella, TA2 pure titanium support Body, TA2 pure titanium tail fastening screw, can accommodate bone material or production factors, and can a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/4603A61F2/4607A61F2002/30092A61F2002/4653A61F2002/4687
Inventor 屠重棋卢敏勋
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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