Endoprosthesis for an artificial hip-joint

Details Endoprosthesis for an artificial hip-joint Endoprosthesis for an artificial hip-joint

1997-02-26

1998-09-01

Jones, Mary Beth

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 23, A61F 232

Patent

active

058005544

ABSTRACT:
The present invention concerns an endoprosthesis for an artificial hip-joint, the endoprosthesis comprising a shank (1) having an adapter (2) at one of its ends. A ballhead (4) is fitted with a recess (6) detachably engaged by the adapter (2) while retaining the ballhead. The adapter (2) and the recess (6) are cylindrical, whereby the ballhead (4) is axially adjustable. A device is provided for retaining the ballhead (4) in various axial positions relative to the adapter (2). Accordingly, the ballhead (4) is adjustable with respect to its axial position and thereby its distance from the adapter (2) or the shank (1) is likewise adjustable. This feature eliminates the need to stock different ballheads matching different anatomic particulars.

REFERENCES:
patent: 3864758 (1975-02-01), Yakich
patent: 4502160 (1985-03-01), Moore et al.
patent: 4892546 (1990-01-01), Kotz et al.
patent: 5071435 (1991-12-01), Fuchs et al.
patent: 5358524 (1994-10-01), Richelsoph
patent: 5569263 (1996-10-01), Hein
OSTEO AG, Endoprothesen System nach Prof Mittelmeier (1980).

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