Patent US4985032A successfully refreshed from Google Patents.
US4985032A
Expired / Lapsed
US
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Drill guide
Assignee: Zimmer Technology Inc
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Filing: 1990-05-14
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Granted: 1991-01-15
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Expires: 2010-05-14
Abstract
Abstract A drill guide for drilling a transverse hole in a patient's knee to intersect a bony ligament tunnel formed in an arthroscopic surgical procedure for replacing the patient's cruciate ligament. The drill guide is U-shaped having spaced apart parallel co-planar legs extend from an arcuate base, one of which legs is solid to fit within the bony ligament tunnel and the other is holed at spaced intervals, the longitudinal axis of which holes point towards the solid leg, a select hole to receive a barrel turned therethrough that was an open longitudinal bore to guide a conventional drill turned therethrough and into the patient's knee to intersect, at a right angle, the bony ligament tunnel.
Inventors
- 👤 E. Marlowe Goble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0805; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1714; A61B17/1739; A61B17/1764; A61F2/0811; A61F2002/0876; A61F2002/0882
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
A drill guide comprising, a rod that is bent upon itself into a U-shape, forming parallel co-planar legs, one of which legs is solid for fitting into a straight bony tunnel, and the other leg is holed laterally at spaced intervals therealong the longitudinal axis of each of which holes points to said solid leg which holes are tapped; and a barrel means has an longitudinal bore open therethrough, and has a threaded external surface for turning through one of said holes.
Claim 2
Dependent Claim
82 words
A drill guide comprising, a rod that is bent upon itself into a U-shape, forming parallel co-planar legs, one of which legs is solid for fitting into a straight bony tunnel, and the other leg is holed laterally at spaced intervals therealong the longitudinal axis of each of which holes points to said solid leg which holes are tapped; and a barrel means has an longitudinal bore open therethrough, and has a threaded external surface for turning through one of said holes.
Claim 3
Dependent Claim
18 words
A drill guide as recited in claim 1, wherein the solid and holed legs are of equal length.
Claim 4
Dependent Claim
50 words
A drill guide as recited in claim 1, wherein the barrel means has a broad head on one end and includes a plurality of spaced spikes that extend axially from its other end; and a sleeve for fitting over said barrel means spiked end and turning onto said barrel means.
Claim 5
Dependent Claim
20 words
A drill guide as recited in claim 3, wherein the barrel means broad head end is knurled or otherwise roughened.
Claim 6
Dependent Claim
35 words
A drill guide as recited in claim 3, wherein the sleeve is holed and tapped axially for turning over the barrel means spiked end to where said spikes extend beyond a face of said sleeve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |