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Artificial prosthesis

An artificial prosthesis and prosthesis technology, applied in the field of artificial prosthesis, can solve problems such as patient injury and excessive wear of joint prosthesis, and achieve the effect of reducing treatment costs

Inactive Publication Date: 2018-01-19
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an artificial prosthesis to solve the problem of excessive wear of the joint prosthesis in the prior art and causing harm to the patient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 and figure 2 As shown, the artificial prosthesis of Embodiment 1 includes a prosthesis body 10 , an induction coil 20 and a detection circuit 30 . Wherein, the prosthesis body 10 forms a friction pair with the bone or other prosthesis, and the contact surface of the prosthesis body 10 and the bone or other prosthesis forms a friction surface. The induction coil 20 is arranged in the prosthesis body 10 , and there is a predetermined distance between the induction coil 20 and the friction surface of the prosthesis body 10 . The detection circuit 30 is arranged in the prosthesis body 10 and is connected to the induction coil 20. When the induction coil 20 is damaged, the detection circuit 30 can send out an alarm signal.

[0035] The prosthesis body 10 will wear on the friction surface as the use time increases. When the wear of the prosthesis body 10 reaches a certain level, the artificial prosthesis will have a negative impact on the patient and incre...

Embodiment 2

[0051] The artificial prosthesis of the second embodiment improves the arrangement of the induction coil 20, as Figure 6 As shown, the induction coils 20 of the second embodiment are reciprocatingly distributed in an S shape. Specific reference Figure 6 , the induction coils of the second embodiment are reciprocally arranged in the form of zigzag lines to cover the above-mentioned friction surface.

Embodiment 3

[0053] Such as Figure 7 to Figure 9 As shown, the artificial prosthesis of embodiment three is specifically a knee joint prosthesis, and the knee joint prosthesis of embodiment three mainly bears the force between the femur and the tibia, and its friction surface is as follows Figure 8 As shown, it is a curved surface facing upward, so the induction coil 20 is arranged under the friction surface according to the shape of the friction surface, and as shown Figure 9 shown over the entire friction surface. The force-bearing surface of the knee joint prosthesis of this embodiment is the upper and lower surfaces of the prosthesis, and the force-bearing direction is also along the vertical direction. Therefore, preferably, the accommodating recess 12 of this embodiment is arranged on the front side of the knee joint prosthesis, so as to The pressure on the electrical box 13 is reduced, and the wires of the induction coil 20 are arranged along the circumference of the prosthesis ...

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Abstract

The invention provides an artificial prosthesis, which includes: a prosthesis body, which forms a friction pair with a bone or other prosthesis, wherein the contact surface of the prosthesis body withthe bone or other prosthesis is a friction surface; an induction coil, which is disposed in the prosthesis body a predetermined distance away from the friction surface of the prosthesis body; and a detection circuit, which is arranged in the prosthesis body and connected with the induction coil and can send an alarm signal when the induction coil is damaged. By the adoption of the technical scheme, the problems of excessive abrasion of the joint prostheses and injury to patients in the prior art can be effectively solved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an artificial prosthesis. Background technique [0002] At present, in joint implants, the materials used for friction surfaces include metal materials, ceramic materials and ultra-high molecular weight polyethylene materials (or highly cross-linked polyethylene materials), among which ultra-high molecular weight polyethylene (or highly cross-linked polyethylene materials) material) is a material with good impact resistance, wear resistance, good self-lubricating performance and excellent low temperature performance, but in the process of using the joint implant, it will inevitably cause wear of the polyethylene material, which will lead to false positives. The size of the body changes during use, which will lead to unexpected deviations in the function of the prosthesis, such as: changes in the degree of activity, gaps in fit and other problems. [0003] At present, this type of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28A61F2/32A61F2/30
Inventor 马小林丁子一杨晓杰
Owner BEIJING AKEC MEDICAL
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