US3806957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoprosthesis of the proximal portion of the femur
Assignee: Individual
•
Filing: 1973-03-22
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Granted: 1974-04-30
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Expires: 1993-03-22
Abstract
Abstract An endoprosthesis of the proximal portion of the femur, wherein a head and a neck are connected with a shaft by means of a threaded joint. For this purpose the proximal end of the shaft has a broadening part, wherein a seat for a threaded split shank fitted on the neck base is provided about the length of the neck axis. The split shank is fixed by a lock for the trochanter major. Accordingly, the latter lock is elongated and broadens toward the end disposed inside the shaft.
Inventors
- 👤 Y Shersher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:07
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2/3676; A61F2/46; A61F2/4603; A61F2/4607; A61F2002/30001; A61F2002/30316; A61F2002/30317; A61F2002/30322; A61F2002/30329; A61F2002/30331; A61F2002/30332; A61F2002/30405; A61F2002/30476; A61F2002/30492; A61F2002/30507; A61F2002/30535; A61F2002/30594; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30789; A61F2/3609; A61F2002/3611; A61F2002/3625; A61F2002/3627; A61F2002/3631; A61F2002/3652; A61F2002/3678; A61F2002/368; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2250/00; A61F2250/0014; A61F2250/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
An endoprosthesis of the proximal portion of the femur, comprising a head, said head extending into a neck having a base thereon, a shaft designed for being inserted into the femoral medullary canal, said shaft having a proximal end defining a broadened part, a seat formed in said broadened part along the axis of said neck, a threaded split shank fixed on the base of said neck, a threaded joint connecting said neck with said shaft by screwing said split shank into said seat, a lock for the trochanter major having one end disposed in said broadened part of said shaft, said end of said lock for the trochanter major being elongated and broadened for the purpose of locking said split shank.
Claim 2
Dependent Claim
122 words
An endoprosthesis of the proximal portion of the femur, comprising a head, said head extending into a neck having a base thereon, a shaft designed for being inserted into the femoral medullary canal, said shaft having a proximal end defining a broadened part, a seat formed in said broadened part along the axis of said neck, a threaded split shank fixed on the base of said neck, a threaded joint connecting said neck with said shaft by screwing said split shank into said seat, a lock for the trochanter major having one end disposed in said broadened part of said shaft, said end of said lock for the trochanter major being elongated and broadened for the purpose of locking said split shank.
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) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |