Extraction device
AssigneeJohnson & Johnson Professional, Inc.
InventorsBruno Hiernard, Richard Farrar
Life of this patent
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Abstract
An extraction device (10,110) for removing a socket bearing insert (12) from an acetabular cup (14) in an acetabular prosthesis in which an extracting member (30, 130) is adapted for attachment to a groove (20) in the insert (12). The extraction device (10, 110) includes a support in the form of a sleeve (38, 138) which bears against the rim of the acetabular cup (14). The extraction device (10, 110) has means for providing an axial force exclusively between the extracting member (30, 130) and the support such that no force is transmitted to a bone to which the acetabular cup (14) is attached.
Claims13
An extraction device for removing an insert from a cup portion an acetabular cup prosthesis comprising:
- an extracting member with attachment means for attachment, to the insert to be removed;
- a support adapted for bearing, against the cup portion;
- and
- means for providing an axial force exclusively between the extracting member and the support such that no force is transmitted to any bone to which the cup portion is attached.
Dependencies are inferred from the claim text.