US4813962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hip joint prosthesis
Assignee: SUIZER AG
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Filing: 1987-03-30
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Granted: 1989-03-21
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Expires: 2007-03-30
Abstract
Abstract The prosthesis has a blade with a roof-ridge shaped shoulder at the proximal end adjacent to the neck. In addition, a bore is disposed in the shoulder on a medial plane so that a hook-shaped instrument can be inserted in to the bore from a direction of the neck. Movement and alignment of the blade via the insertion instrument is performed in the direction of the longitudinal axis of the blade.
Inventors
- 👤 Andre G. Deckner
- 👤 Martin Imhof
- 👤 Karl Zweymuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61B; A61B90/00; A61B90/90; A61B90/94; A61F2/46; A61F2/4603; A61F2/4607; A61B90/39; A61B2090/3937; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30153; A61F2002/30667; A61F2002/3071; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30789; A61F2/3609; A61F2002/365; A61F2002/3678; A61F2002/368; A61F2002/4619; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0019; A61F2250/00; A61F2250/0058; A61F2250/0085; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
a prosthesis for a hip joint comprising a neck; and a blade extending along a longitudinal axis and connected to said neck along a boundary plane disposed in angular relation to said longitudinal axis, said blade having a pair of opposite wide sides, a medial narrow side extending from said neck on a continuous curve, a lateral narrow side, a roof-ridge shaped shoulder between said lateral narrow side and said neck and a bore extending through said shoulder from lateral to medial on a median plane parallel to said wide sides for reception of a hook of a removal instrument from opposite sides in the direction of said neck.
Claim 2
Dependent Claim
109 words
a prosthesis for a hip joint comprising a neck; and a blade extending along a longitudinal axis and connected to said neck along a boundary plane disposed in angular relation to said longitudinal axis, said blade having a pair of opposite wide sides, a medial narrow side extending from said neck on a continuous curve, a lateral narrow side, a roof-ridge shaped shoulder between said lateral narrow side and said neck and a bore extending through said shoulder from lateral to medial on a median plane parallel to said wide sides for reception of a hook of a removal instrument from opposite sides in the direction of said neck.
Claim 3
Dependent Claim
24 words
A prosthesis as set forth in claim 1 wherein said blade has a distal section of conical shape extending symmetrically along said longitudinal axis.
Claim 4
Dependent Claim
17 words
A prosthesis as set forth in claim 1 wherein said bore is perpendicular to said longitudinal axis.
Claim 5
Dependent Claim
18 words
A prosthesis as set forth in claim 1 wherein said longitudinal axis is disposed on a straight line.
Claim 6
Dependent Claim
24 words
A prosthesis as set forth in claim 1 wherein said blade further includes a trochanter wing between said shoulder and said lateral narrow side.
Claim 7
Dependent Claim
21 words
A prosthesis as set forth in claim 1 wherein said neck is disposed on an axis perpendicular to said boundary plane.
Claim 8
Dependent Claim
27 words
A prosthesis as set forth in claim 1 wherein said shoulder is disposed symmetrically of said longitudinal axis and said bore is disposed perpendicularly on said axis.
Claim 9
Dependent Claim
15 words
A prosthesis as set forth in claim 1 wherein said bore intersects said longitudinal axis.
Claim 10
Dependent Claim
104 words
A prosthesis for a hip joint comprising a neck; and a blade extending along a longitudinal axis and connected to said neck along a boundary plane disposed in angular relation to said longitudinal axis, said blade having a pair of opposite wide sides, a narrow medial side, a narrow lateral side, a roof-ridge shaped shoulder at a proximal end of said blade projecting from between said lateral side and said neck on said axis and a bore extending through said shoulder from lateral to medial for reception of a removal instrument in the direction of said neck and from opposite sides of said bore.
Claim 11
Dependent Claim
104 words
A prosthesis for a hip joint comprising a neck; and a blade extending along a longitudinal axis and connected to said neck along a boundary plane disposed in angular relation to said longitudinal axis, said blade having a pair of opposite wide sides, a narrow medial side, a narrow lateral side, a roof-ridge shaped shoulder at a proximal end of said blade projecting from between said lateral side and said neck on said axis and a bore extending through said shoulder from lateral to medial for reception of a removal instrument in the direction of said neck and from opposite sides of said bore.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |