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Cup sheath to prevent soft tissue impingement

A component, the technology of the acetabular cup, applied in the direction of medical science, prosthesis, acetabular socket, etc.

Inactive Publication Date: 2011-05-04
SMITH & NEPHEW INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device only protects the soft tissue covered by the device from damage

Method used

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  • Cup sheath to prevent soft tissue impingement
  • Cup sheath to prevent soft tissue impingement
  • Cup sheath to prevent soft tissue impingement

Examples

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Embodiment Construction

[0028] The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its use, or uses.

[0029] The device provides, in part, an improved method of inserting an acetabular cup (ie, shell) into a body cavity. This method utilizes a sheath that temporarily encloses the acetabular cup during its insertion into a body cavity. The sheath protects the cup from biological matter that could compromise a good taper lock with the liner, or a good initial scratch-fit with the bone.

[0030] Preferably, the sheath and acetabular cup are packaged sterile. The sheath may be integrated with the acetabular cup package or as a separate part of the acetabular cup package, or may have a separate part number and be used as a single-use device. Still further, the sheath may be provided as a non-disposable device configured to be sterilized multiple times. The sheath should be slightly flexible in some parts to allow the ac...

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PUM

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Abstract

An acetabular cup and sheath assembly comprises a sheath and an acetabular cup. The sheath is configured to receive the acetabular cup within the sheath. The sheath and acetabular cup together are configured to pass through a surgical wound toward an implantation site. The sheath further comprises a penetration structure for passing the acetabular cup through the sheath when the acetabular cup is proximately close to an implantation site.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 056321, filed May 27, 2008, which is incorporated herein by reference. technical field [0003] This device generally relates to improving the fixation of the acetabular cup, and more particularly to preventing biological matter (such as soft tissue and fatty deposits or fatty deposits) )) comes into contact with the acetabular cup. Background technique [0004] During shell surgery, the acetabular shell may become contaminated with biological matter, soft tissue, and fatty deposits or cellulite prior to and during insertion. Every time an acetabular cup is inserted into a body cavity, soft tissue and biological matter can build up on part of the acetabular cup and stick to it. If these materials collect or bind to the porous outer coating of the cup, it will adversely affect bony ingrowth and initial "occlusion" and "settlement". If this material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/34A61B17/74
CPCA61F2/30721A61F2/0095A61F2/30728A61F2/4609A61F2002/30718
Inventor J·J·希W·罗素
Owner SMITH & NEPHEW INC