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Acetabular cup

An acetabular cup and acetabular cup technology, applied in the field of acetabular cups, can solve the problems of misalignment of the correct position, easy detachment of the acetabular cup, and weak fixation of the acetabular cup, and achieve the effect of simple processing technology and increased processing difficulty

Pending Publication Date: 2020-08-11
BEIJING NATON INST OF MEDICAL TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present disclosure is to provide and overcome at least to a certain extent the problem that the acetabular cup is easily detached or shifted from the correct position during surgery or rehabilitation due to the weak fixation of the acetabular cup in the related art

Method used

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Examples

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Embodiment Construction

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0037] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the description in the accompanying drawings directions for the example described above. It will be appreciated that if the illustrated device is turned over so...

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Abstract

The invention discloses an acetabular cup. The acetabular cup includes an acetabular cup body and multiple ring teeth; the multiple ring teeth are arranged on the outer surface of the acetabular cup body; and in each two adjacent ring teeth, the distance between the tooth top of one ring tooth away from the mouth of the acetabular cup body and the spherical surface where the outer surface of the acetabular cup body is located is greater than of the distance between the tooth top of the other ring tooth close to the mouth of the acetabular cup body and the spherical surface where the outer surface of the acetabular cup body is located. The press-fit space formed by the ring teeth can be gradually and upward increased from the mouth by making the distance of the tooth top of one ring tooth away from the mouth of the acetabular cup body and the spherical surface where the outer surface of the acetabular cup body is located greater than the distance between the tooth top of the other ringtooth close to the mouth of the acetabular cup body and the spherical surface where the outer surface of the acetabular cup body is located in each two adjacent ring teeth, so that the press-fit amount can be increased so as to make the acting force of acetabulum on the ring teeth gradually increased, therefore, the problems of the unstable fixation of acetabular cups and easy detaching or shifting of the acetabular cups from correct positions during operation or rehabilitation can be solved, and the acetabular cup can be stably fixed inside the acetabulum.

Description

technical field [0001] The present disclosure relates to the technical field of medical devices, in particular to an acetabular cup. Background technique [0002] In hip replacement surgery, the acetabular lining is fixed to the acetabulum by using the acetabular cup as a medium. Whether the acetabular cup can maintain a long-term and firm fixation on the acetabulum is the key to determining the success of the acetabular surgery. [0003] At present, the acetabular cup is mainly fixed by screw fixation, bone cement fixation or titanium spray coating. However, screws, bone cement and titanium spray coating often cause the acetabular cup to detach from or deviate from the correct position during surgery or rehabilitation due to reasons such as unsatisfactory integration with human bone. [0004] It should be noted that the information disclosed in the above background section is only for enhancing the understanding of the background of the present disclosure, and therefore m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/34
CPCA61F2/34A61F2230/00
Inventor 胡肖强张晓永董骧
Owner BEIJING NATON INST OF MEDICAL TECH CO LTD
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