US4483335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nails for femoral fractures
Assignee: Tornier SAS
•
Filing: 1983-06-02
•
Granted: 1984-11-20
•
Expires: 2003-06-02
Abstract
Abstract A nail for the osteosynthesis of fractures of femoral necks, formed of a resilient pre-curved rod having an inner end engageable into the medullary cavity of the femur through a lateral perforation drilled through the inner side of said femur in the vicinity of the process thereof and an outer end which remains exterior to said femur. The rod comprises in the vicinity of said outer end a portion which is bent twice in opposed directions to determine a shoulder which protrudes inwardly with respect to the curvature of said rod and which abuts against the edge of said perforation to retain said nail longitudinally with respect to said femur.
Inventors
- 👤 Alain Tornier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61B17/7208
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
In a nail for the osteosynthesis of fractures of femoral necks, formed of a resilient pre-curved rod having an inner end engageable into the medullary cavity of the femur through a lateral perforation drilled through the inner side of said femur in the vicinity of the process thereof and an outer end which remains exterior to said femur, with said perforation having an edge, said rod comprising in the vicinity of said outer end a portion which is bent twice in opposed directions to determine a shoulder which protrudes inwardly with respect to the curvature of said rod and which abuts against the edge of said perforation to retain said nail longitudinally with respect to said femur.
Claim 2
Dependent Claim
117 words
In a nail for the osteosynthesis of fractures of femoral necks, formed of a resilient pre-curved rod having an inner end engageable into the medullary cavity of the femur through a lateral perforation drilled through the inner side of said femur in the vicinity of the process thereof and an outer end which remains exterior to said femur, with said perforation having an edge, said rod comprising in the vicinity of said outer end a portion which is bent twice in opposed directions to determine a shoulder which protrudes inwardly with respect to the curvature of said rod and which abuts against the edge of said perforation to retain said nail longitudinally with respect to said femur.
Claim 3
Dependent Claim
24 words
In a nail as claimed in claim 1, said outer end terminating in a flattened portion which rests against the exterior of said process.
Claim 4
Dependent Claim
27 words
In nail as claimed in claim 2, said flat portion having a hole for passage of a screw adapted to fix said flattened portion to said femur.
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) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |