Implant for fixing orthopedic prosthesis and acetabular cup prosthesis

An implant and acetabular cup technology, applied in the field of acetabular cup prosthesis, can solve the problems of large bone defect, fall off, and the doctor cannot accurately find the position of the screw center, so as to reduce the bone defect and improve the success rate.

Inactive Publication Date: 2018-10-09
MICROPORT ORTHOPEDICS SUZHOU CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] First, the process of screw implantation is very complicated, and it takes a relatively long time during the operation, and the accuracy depends too much on the experience of the chief surgeon and his assistants. Unable to accurately guide the doctor to find the position and direction of the implanted screw, often resulting in the screw not being implanted in the expected position and direction;
[0006] Second, the implantation position and direction of the screw are mainly affected by the line of sight, the position of th

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  • Implant for fixing orthopedic prosthesis and acetabular cup prosthesis
  • Implant for fixing orthopedic prosthesis and acetabular cup prosthesis
  • Implant for fixing orthopedic prosthesis and acetabular cup prosthesis

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Embodiment Construction

[0074] The implant for fixing orthopedic prosthesis and the acetabular cup prosthesis proposed by the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0075] In this document, whether expressly stated or not, all numerical values ​​are assumed to be modified by the term "about". In the context of using a numerical value, the term "about" generally refers to a range that one of ordinary skill in the art would consider equivalent to the recited value (ie, having the same function or result) and its vicinity. In many instances, the term "about" may include numbers that are rounded to the nearest significant figure. Unless otherwise specified, other uses of the term "about" (i.e., in a context other than wher...

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Abstract

The invention provides an implant for fixing an orthopedic prosthesis and an acetabular cup prosthesis. The implant comprises a head end and a tail end, wherein the head end is provided with a top anda bottom, the thickness from the bottom to the top decreases progressively to enable the implant to enter a preset area, and the ratio of the maximum width to the maximum thickness of the implant isgreater than 1.155. The implant is in a thin shape on the one hand and can reduce bone defects during implantation; and on the other hand, punching holes in an acetabulum and measuring the depth of the holes are not needed, and the implant can be inserted without alignment. The operation process of fixing the acetabular cup prosthesis is simplified, and the problem of loosening of the acetabular cup prosthesis caused by inaccurate screw implantation position does not occur.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an implant for fixing an orthopedic prosthesis and an acetabular cup prosthesis. Background technique [0002] In total hip replacement, after implanting the acetabular cup prosthesis, it is necessary to fix the acetabular cup prosthesis to the acetabulum to ensure that the acetabular cup prosthesis will not loosen even if it is subjected to a large impact during movement , especially when the bone has not fully grown into the pore structure of the outer surface of the acetabular cup prosthesis, or the coefficient of friction of the outer surface of the acetabular cup prosthesis is too low, this requirement will be particularly obvious. [0003] At present, the acetabular cup prosthesis is mostly fixed by locking screws into the reserved holes on the acetabular cup prosthesis. To complete this process accurately, the screw holes corresponding to the reserved holes on the...

Claims

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Application Information

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IPC IPC(8): A61F2/34A61F2/30
Inventor 孙延东胡晓苏
Owner MICROPORT ORTHOPEDICS SUZHOU CO LTD
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