Patent US4383527A successfully refreshed from Google Patents.
US4383527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for guiding the insertion of surgical wires into bone tissue
Assignee: Howmedica Osteonics Corp
•
Filing: 1981-02-20
•
Granted: 1983-05-17
•
Expires: 2001-02-20
Abstract
Abstract The device includes a novel tool for guiding a surgical wire into the patient's bone at a universally adjustable position in relation to a previously inserted wire, and a novel guide pin-external sleeve combination whose use greatly facilitates the steps of guide pin insertion and, after the sleeve has been removed, insertion of a cannulated surgical implant over the guide pin. The novel device is particularly suited for use in a surgical procedure for fixing a fracture in the femoral neck with a plurality of parallel cannulated bone screws.
Inventors
- 👤 Stanley E. Asnis
- 👤 Rocco R. Borzone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1721; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/742; A61B17/1796
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A tool for use in inserting a second surgical wire into the bone of a patient at a different position from that of a first surgical wire previously inserted therein, said tool comprising a first arm adapted to receive and rotate about the axis of the first wire, a second arm rotatable with respect to said first arm about an axis of rotation parallel to the first wire, and means connected to the second arm for receiving and directing the placement of the second wire, with the connection of said receiving and directing means to the second arm being such that the second wire can be universally angulated with respect to the second arm about a center of rotation, and with the distance between said center of rotation and said axis of rotation being about the same as the distance between said first wire and said axis of rotation.
Claim 2
Dependent Claim
149 words
A tool for use in inserting a second surgical wire into the bone of a patient at a different position from that of a first surgical wire previously inserted therein, said tool comprising a first arm adapted to receive and rotate about the axis of the first wire, a second arm rotatable with respect to said first arm about an axis of rotation parallel to the first wire, and means connected to the second arm for receiving and directing the placement of the second wire, with the connection of said receiving and directing means to the second arm being such that the second wire can be universally angulated with respect to the second arm about a center of rotation, and with the distance between said center of rotation and said axis of rotation being about the same as the distance between said first wire and said axis of rotation.
Claim 3
Dependent Claim
43 words
A tool of claim 1 containing first releasable means for locking the position of the first arm with respect to the second arm and second releasable means for locking the position of said receiving and directing means with respect to the second arm.
Claim 4
Dependent Claim
24 words
A tool of claim 2 including a handle integral with the first arm and adapted to be held in the hand of the user.
Claim 5
Dependent Claim
24 words
A tool of claim 3 wherein the connection of said receiving and directing means to the second arm is that of a ball-and-socket joint.
Claim 6
Dependent Claim
37 words
A tool of claim 4 wherein said receiving and directing means is a guide tube and said ball-and-socket joint is comprised of a ball integral with said guide tube and a socket integral with said second arm.
References Cited (Backward Citations)
US2200120A
Cited
US2301500A
Cited
CH227453A
Cited
FR910763A
Cited
FR910078A
Cited
US2531734A
Cited
US2607339A
Cited
US2625934A
Cited
US2697433A
Cited
US2937642A
Cited
US3135263A
Cited
US3587560A
Cited
US3704707A
Cited
US3892232A
Cited
US3945377A
Cited
US4050528A
Cited
US4157714A
Cited
SU579985A1
Cited
US4037592A
Cited
US4306570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |