Acetabulum prosthesis extractor for revision

A technology of acetabular prosthesis and extractor, which is applied in the direction of acetabular socket, hip joint, joint implant, etc., and can solve the problems of increased difficulty of operation, excessive blood loss, and prolonged operation time

Inactive Publication Date: 2020-10-30
姜杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the prosthesis used is close to the inner wall of the acetabulum, the removal of the acetabular prosthesis may lead to a complet

Method used

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  • Acetabulum prosthesis extractor for revision
  • Acetabulum prosthesis extractor for revision
  • Acetabulum prosthesis extractor for revision

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0023] According to an embodiment of the present invention, a revision acetabular prosthesis extractor is provided.

[0024] like Figure 1-4 As shown, the acetabular prosthesis remover for revision according to the embodiment of the present invention includes an acetabular prosthesis supporting outer rod 1, and a rotating rod 4 is movably connected on the outer side of the acetabular prosthesis supporting outer rod 1, The acetabular prosthesis support outer rod 1 is provided with a movably ...

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Abstract

The invention discloses an acetabulum prosthesis extractor for revision. The acetabulum prosthesis extractor comprises an acetabulum prosthesis supporting outer rod, a movably connected rotating rod is arranged on the outer side of the acetabulum prosthesis supporting outer rod; a movably connected acetabulum prosthesis supporting inner rod is arranged in the acetabulum prosthesis supporting outerrod in a sleeving manner; a fixedly connected third buffer layer is arranged at one end of the acetabulum prosthesis supporting outer rod, a first baffle plate and a second baffle plate which are fixedly connected are arranged in the acetabulum prosthesis supporting outer rod, a fixedly connected pressing handle is arranged at one end of the acetabulum prosthesis supporting inner rod, and the pressing handle and the acetabulum prosthesis supporting inner rod are of an integrated structure. The extractor has the beneficial effects that through a first spring and a second spring in a first bonetest head and a second bone test head, the spherical size can be changed according to bones of different sizes, the effectiveness of an operation is improved, and the progress of the operation is accelerated; due to the arrangement of the suction cups, the tightness of the fixing prosthesis is greatly improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an acetabular prosthesis extractor for revision. Background technique [0002] Removal of a well-fixed non-cemented porous-coated hip prosthesis is difficult with existing techniques and may result in additional loss of bone mass requiring a larger prosthesis for reconstruction. At present, when the prosthesis used is close to the inner wall of the acetabulum, the removal of the acetabular prosthesis may lead to a complete defect of the medial quadrat, resulting in excessive blood loss, prolonging the operation time, and increasing the difficulty of the operation. [0003] Aiming at the problems in the related technologies, no effective solution has been proposed yet. Contents of the invention [0004] Aiming at the problems in the related art, the object of the present invention is to propose an acetabular prosthesis extractor for revision, so as to overcome the abo...

Claims

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Application Information

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IPC IPC(8): A61F2/46A61F2/34
CPCA61F2/34A61F2/4609
Inventor 姜杰
Owner 姜杰
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