Bone-implanting artificial limb and its installation method

An installation method and bone implant technology, which can be used in prosthesis, medical science, artificial legs, etc., and can solve problems such as bending, breaking, and poor strength.

Inactive Publication Date: 2003-05-14
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the second segment of the implant is fixed on the first segment by a through-hole bolt, this two-stage implant not only has a complex structure, but also has poor strength, and often bends and breaks.

Method used

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  • Bone-implanting artificial limb and its installation method
  • Bone-implanting artificial limb and its installation method
  • Bone-implanting artificial limb and its installation method

Examples

Experimental program
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Embodiment Construction

[0011] figure 1 Shown is a schematic diagram of the structure of the bone-implanted thigh prosthesis. The stump bone 2 in the residual limb 1 is firmly combined with the upper end of the implant 3, and the lower end of the implant 3 protruding out of the body is connected with the intermediate connector 4, and passed through The connecting pipe 5 is connected with the knee joint 6, and the knee joint 6 is connected with the prosthetic foot 8 through the leg pipe 7.

[0012] figure 2 (a) and (b) show a schematic diagram of an embodiment of the structure of the intermediate connector 4 made of titanium alloy in the bone implant type thigh prosthesis, the upper end of which is an inner hexagonal hole 9 with a narrow gap 13 on one side, and an outer There are screws on the circle to lock the tablet presser 10 so that it can be firmly connected with the protruding end of the hexagonal implant 3 and can be disassembled quickly. Its lower end is the connecting disc 12 connected wi...

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Abstract

The present invention discloses a bone-implanting artificial limb and its installation method in biomedicine engineering. The bone-implanting artificial limb consists of implant, intermediate and outer artificial limb. The implant has one end inserted directly into the inner cavity of residual bone after amputation, and after the implant is combined with soft tissue and skin and the cut is healed via once or twice operation, the intermediate is connected to the extending part of implant while being connected to the outer artificial limb. Unlike traditional artificial limb, which has receptor cavity for transferring motion and driving force and thus offensive odor in the receptor cavity-residual limb interface, residual limb infection caused by friction, limited limb activity range and other limitation, the present invention has no said demerits and complies with body's motion regularity.

Description

technical field [0001] The invention belongs to the prosthesis manufacturing technology in biomedical engineering, in particular to a bone-implanted prosthesis and an installation method. Background technique [0002] Traditional prosthetics have disadvantages such as bad smell due to the poor environment and air permeability of the socket-residual limb interface, residual limb infection caused by friction, limited range of limb movement, and restrictions on the ability to install prostheses for those with too short residual limbs. The bone-implanted prosthesis was proposed in the 1970s by referring to the artificial joint implant technology. Due to the technical constraints of the combination of the intermediate implant and the bone and the sealing of the protruding part and the skin interface, until the 1990s titanium alloys were used in dental implants and implants. After the successful application on artificial joints, this idea became a reality. At the 6th ISPO (Intern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/60A61F2/76A61F2/78
Inventor 王人成杨帮成张济川张兴栋金德闻陈继镛
Owner TSINGHUA UNIV
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