US5683406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for harvesting bone
Assignee: MAXILON LABORATORIES Inc
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Filing: 1995-09-29
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Granted: 1997-11-04
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Expires: 2015-09-29
Abstract
Abstract An instrument for harvesting bone comprises an elongate body having a hollow, and a proximal end and a distal end communicating with one another through the hollow. A blade having a cutting edge for cutting or abrading bone is mounted adjacent an aperture in the distal end. The cut or abraded bone moves through the aperture and into the hollow.
Inventors
- 👤 David E. Altobelli
- 👤 Peter R. Ebner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:57
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B17/00; A61B17/16; A61B17/1635; A61B17/32; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4644; A61B2017/320004; A61B2017/320008; A61F2002/4649
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
156 words
An instrument for harvesting bone, comprising an elongate body having distal and proximal ends, said body having a hollow interior for holding harvested bone, an aperture communicating with said interior, a loop shaped blade mounted in the distal end of said body, said blade having a cutting edge for cutting and abrading bone, a concave proximal surface of said cutting edge defining one side of an elongated slot restricting said aperture, another side of said elogated slot being defined by a distal end of a convex surface, having a bone engaging bottom surface extending across said blade and limiting penetration by said cutting edge into the bone surface, the distal end of said convex surface being proximally spaced from the cutting edge defining said slot, the proximal surface of said cutting edge serving to direct cut bone across said slot onto an upper surface of said convex surface through said aperture and into said hollow interior.
Claim 2
Dependent Claim
156 words
An instrument for harvesting bone, comprising an elongate body having distal and proximal ends, said body having a hollow interior for holding harvested bone, an aperture communicating with said interior, a loop shaped blade mounted in the distal end of said body, said blade having a cutting edge for cutting and abrading bone, a concave proximal surface of said cutting edge defining one side of an elongated slot restricting said aperture, another side of said elogated slot being defined by a distal end of a convex surface, having a bone engaging bottom surface extending across said blade and limiting penetration by said cutting edge into the bone surface, the distal end of said convex surface being proximally spaced from the cutting edge defining said slot, the proximal surface of said cutting edge serving to direct cut bone across said slot onto an upper surface of said convex surface through said aperture and into said hollow interior.
Claim 3
Dependent Claim
19 words
An instrument according to claim 1, and including a removable slide mounted adjacent the proximal end of said instrument.
Claim 4
Dependent Claim
13 words
An instrument according to claim 2, wherein said slide comprises a plunger assembly.
Claim 5
Dependent Claim
20 words
An instrument according to claim 3, wherein the collected bone can be consolidated in the hollow interior with the plunger.
Claim 6
Dependent Claim
25 words
An instrument according to claim 3, wherein the collected bone can be pushed out of the hollow interior through the handle aperture with the plunger.
Claim 7
Dependent Claim
19 words
An instrument according to claim 2, and further comprising means for fixedly positioning said slide in a locked position.
Claim 8
Dependent Claim
18 words
An instrument according to claim 2, wherein said slide is removable whereby to provide access to said hollow.
Claim 9
Dependent Claim
22 words
An instrument according to claim 1 and including means adjacent said proximal end for connecting said instrument to an optional vacuum source.
Claim 10
Dependent Claim
20 words
An instrument according to claim 1, wherein said blade is moveably mounted between an operative position and a protected position.
Claim 11
Dependent Claim
14 words
An instrument according to claim 1, wherein said blade comprises a curved cutting edge.
Claim 12
Dependent Claim
12 words
An instrument according to claim 1, wherein said blade is bowed longitudinally.
Claim 13
Dependent Claim
15 words
An instrument according to claim 1, wherein the cutting edge of said blade is hardened.
Claim 14
Dependent Claim
16 words
An instrument according to claim 1, wherein said slot retains said cut bone in said hollow.
Claim 15
Dependent Claim
17 words
An instrument according to claim 1, wherein said hollow comprises a removable cartridge carried on said body.
Claim 16
Dependent Claim
16 words
An instrument according to claim 1, and further comprising a fractionable pouch carried within said hollow.
Claim 17
Dependent Claim
26 words
The instrument according to claim 1, wherein the convex loop is mounted for movement with respect to said aperture so as to effectively enlarge said slot.
Claim 18
Dependent Claim
25 words
The instrument according to claim 16, wherein the convex surface is part of the blade and the blade is moved with respect to the aperture.
Claim 19
Dependent Claim
35 words
The instrument according to claim 16, wherein the convex surface is separate from the blade and the convex surface is moved towards the proximal end of said blade to increase the size of said slot.
Claim 20
Dependent Claim
21 words
The instrument according to claim 1, wherein the cutting edge and the distal end of the convex surface are generally parallel.
Claim 21
Dependent Claim
19 words
The instrument according to claim 1, wherein said slot is substantially uniform from side to side across the instrument.
Claim 22
Dependent Claim
19 words
An instrument according to claim 1, wherein said cutting edge of said blade is coated with a hardened material.
Claim 23
Dependent Claim
16 words
An instrument according to claim 1, wherein said slot retains said abraded bone in said hollow.
Claim 24
Dependent Claim
113 words
A blade for harvesting bone, said blade having a body with distal and proximal ends, said blade being loop shaped at its distal end, said loop being sharpened to an edge for cutting and abrading bone, a concave proximal surface of said loop shaped blade defining one side of an elongated slot, another side of said slot being defined by a convex distal portion proximally spaced from the cutting edge having a bone engaging bottom surface across said blade and limiting penetration by said cutting edge into the bone, the proximal surface of the loop serving to direct cut bone across said slot and onto an upper surface of said convex distal portion.
Claim 25
Dependent Claim
113 words
A blade for harvesting bone, said blade having a body with distal and proximal ends, said blade being loop shaped at its distal end, said loop being sharpened to an edge for cutting and abrading bone, a concave proximal surface of said loop shaped blade defining one side of an elongated slot, another side of said slot being defined by a convex distal portion proximally spaced from the cutting edge having a bone engaging bottom surface across said blade and limiting penetration by said cutting edge into the bone, the proximal surface of the loop serving to direct cut bone across said slot and onto an upper surface of said convex distal portion.
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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) | 2000-11-03 | 2001-05-05 | 2001-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-03 | 2005-05-05 | 2005-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-03 | 2009-05-05 | 2009-11-04 | $7700.00 | Window Closed / Lapsed |