US3610235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial hip joint
Assignee: Semperit AG Holding
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Filing: 1969-05-29
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Granted: 1971-10-05
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Expires: 1989-05-29
Abstract
Abstract An artificial hip joint is intended for use in arthroplasty and comprises an acetabulum prosthesis and an artificial caput femoris interconnected for relative movement with one another. The femoral neck is radially curved and tapered, and is disposed eccentrically in relation to a support plate for the prosthesis.
Inventors
- 👤 Hannes Vagacs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:13
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61F5/05; A61F5/058; A61F5/05816; Y; Y10; Y10S; Y10S128/00; Y10S128/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
An artificial hip joint for use in arthroplasty comprising a prosthesis of the acetabulum and a prosthesis of the caput femoris movably interconnected with each other; said prothesis of the caput femoris including an intraosseous rod, a curved neck constituting an extension of said intraosseous rod and diminishing in thickness in a direction away from said intraosseous rod, and a disc-shaped portion of increased thickness at the juncture of said intraosseous rod and said neck, said curved neck having a central axis which is eccentric with respect to the central axis of said intraosseous rod and an outer edge of said neck coincides with and edge of said disc-shaped portion, said disc-shaped portion having an opening in the side thereof opposite the point of coincidence of the outer edge of said neck and the edge of said disc-shaped portion and extending perpendicularly to the axis of said intraosseous rod, said opening being adapted to accommodate a further rod for securing the trochanter major in the course of operation.
Claim 2
Dependent Claim
168 words
An artificial hip joint for use in arthroplasty comprising a prosthesis of the acetabulum and a prosthesis of the caput femoris movably interconnected with each other; said prothesis of the caput femoris including an intraosseous rod, a curved neck constituting an extension of said intraosseous rod and diminishing in thickness in a direction away from said intraosseous rod, and a disc-shaped portion of increased thickness at the juncture of said intraosseous rod and said neck, said curved neck having a central axis which is eccentric with respect to the central axis of said intraosseous rod and an outer edge of said neck coincides with and edge of said disc-shaped portion, said disc-shaped portion having an opening in the side thereof opposite the point of coincidence of the outer edge of said neck and the edge of said disc-shaped portion and extending perpendicularly to the axis of said intraosseous rod, said opening being adapted to accommodate a further rod for securing the trochanter major in the course of operation.
Claim 3
Dependent Claim
35 words
An artificial hip joint as claimed in claim 1, comprising a washer and bush on said intraosseous rod below said disc-shaped portion, said washer having a larger diameter than the diameter of the disc-shaped portion.
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |