US4438762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthopedic hip fixation device
Assignee: Ace Orthopedic Co Inc
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Filing: 1981-12-30
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Granted: 1984-03-27
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Expires: 2001-12-30
Abstract
Abstract An apparatus useful in reduction of fractures in the vicinity of the neck of the femur comprising a lag screw for being threadably received in or adjacent the head of the femur, and extending through the neck of the femur, an annular sleeve telescopingly receiving the shaft of the lag screw, with means capturing the lag screw within the sleeve for limited telescoping movement therein, and a trochanteric plate for securement to adjacent cortex portions of the femur is disclosed.
Inventors
- 👤 Richard F. Kyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/742; A61B17/746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A femur fracture reduction device, comprising: an elongate shaft having a distal end and a proximal end; a keeper connected to the proximal end of the shaft; a guide sleeve including a cylindrical portion having a passage therethrough for slidably receiving the elongate shaft therein; a flanged head mounted to an end of the guide sleeve; a threaded end portion mounted on the distal end of the elongate shaft, the threaded end portion and the keeper cooperating to retain the elongate shaft inside the passage in the guide sleeve, the threaded end portion being formed for threadedly engaging the head of a patient's femur; and a trochanteric plate including means for permitting attachment of the plate to the femur and a slot for slidably receiving the guide sleeve head at a predetermined angle with respect to the trochanteric plate, such that during use, the assembled guide sleeve and the elongate shaft with the threaded end portion mounted thereon are fitted into an aperture in the patient's femur with the threaded end portion being threadedly affixed to the head of the femur to retain the head of the femur in alignment with the neck of the femur to reduce a fracture thereof and the elongate shaft being telescopically slidable within the guide sleeve to accommodate changes which may occur during healing of the fracture.
Claim 2
Dependent Claim
223 words
A femur fracture reduction device, comprising: an elongate shaft having a distal end and a proximal end; a keeper connected to the proximal end of the shaft; a guide sleeve including a cylindrical portion having a passage therethrough for slidably receiving the elongate shaft therein; a flanged head mounted to an end of the guide sleeve; a threaded end portion mounted on the distal end of the elongate shaft, the threaded end portion and the keeper cooperating to retain the elongate shaft inside the passage in the guide sleeve, the threaded end portion being formed for threadedly engaging the head of a patient's femur; and a trochanteric plate including means for permitting attachment of the plate to the femur and a slot for slidably receiving the guide sleeve head at a predetermined angle with respect to the trochanteric plate, such that during use, the assembled guide sleeve and the elongate shaft with the threaded end portion mounted thereon are fitted into an aperture in the patient's femur with the threaded end portion being threadedly affixed to the head of the femur to retain the head of the femur in alignment with the neck of the femur to reduce a fracture thereof and the elongate shaft being telescopically slidable within the guide sleeve to accommodate changes which may occur during healing of the fracture.
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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |