Endoprosthesis for an artificial hip-joint
OwnerWerner Scholzinventor
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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.
Claims13
An improved endoprosthesis for an artificial hip-joint comprising:
- a shank having first and second ends;
- b) an adapter positioned at one of said ends;
- c) a ballhead including a fitted recess, said fitted recess engagible to said adapter in a detachable manner;
- and,
- d) each of said adapter (2) and said fitted recess (6) are operatively associated with a means for retaining said ballhead (4) in a selected axial position relative to said adapter (2).
Dependencies are inferred from the claim text.