US3943576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial hip joint made from two different surgical alloys
Assignee: ALLIED MEDICAL Corp A DE CORP
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Filing: 1973-11-09
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Granted: 1976-03-16
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Expires: 1993-11-09
Abstract
Abstract An artificial hip joint is provided having an acetabulum prosthesis of the cotyloid cavity defining a socket and having a plurality of blades extending outwardly away from the socket for engaging the prepared wall of the cotyloid cavity. A prosthesis of the head of the femur is movably interconnected with the acetabulum prosthesis and includes a pin to be driven into the bone-marrow channel of the femur, a curved neck integral with the pin, and a hip ball fixedly positioned on the neck and movably located within the socket, the socket enveloping more than one-half of the hip ball to prevent withdrawal of the hip ball from the socket.
Inventors
- 👤 Konstantin Mitrofanovich Sivash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:35
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30728; A61F2/30739; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/3006; A61F2002/30107; A61F2/3094; A61F2002/30975; A61F2002/3233; A61F2/34; A61F2002/3401; A61F2002/3412; A61F2210/00; A61F2210/0009; A61F2250/00; A61F2250/0014; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00029
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
46 words
A prosthesis to replace a missing part of the body comprising a first portion made from a cobalt alloy and a second portion made from titanium or a titanium alloy, said alloys being of a surgical grade, said first and second portions being in physical contact.
Claim 2
Dependent Claim
46 words
A prosthesis to replace a missing part of the body comprising a first portion made from a cobalt alloy and a second portion made from titanium or a titanium alloy, said alloys being of a surgical grade, said first and second portions being in physical contact.
Claim 3
Dependent Claim
14 words
A prosthesis as in claim 1 wherein the cobalt alloy is a cobalt-chromium alloy.
Claim 4
Dependent Claim
15 words
A prosthesis as in claim 1 wherein the cobalt alloy contains cobalt, chromium and molybdenum.
Claim 5
Dependent Claim
21 words
A prosthesis as in claim 1 wherein the cobalt alloy comprises by weight approximately 65% cobalt, 30% chromium and 5% molybdenum.
Claim 6
Dependent Claim
21 words
A prosthesis as in claim 1 wherein the titanium alloy comprises a weight approximately 90% titanium, 6% aluminum and 4% vanadium.
References Cited (Backward Citations)
CA461210A
Cited
US2612159A
Cited
FR1047640A
Cited
US2785673A
Cited
SU124585A1
Cited
US3067740A
Cited
US3656184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |