US5458638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-threaded spinal implant
Assignee: Zimmer Spine Inc
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Filing: 1992-11-06
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Granted: 1995-10-17
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Expires: 2012-11-06
Abstract
Abstract An implant is disclosed for use in spinal stabilization. In one preferred embodiment, the implant is a body having side walls extending between upper and lower walls with openings on the upper and lower walls. The side walls are solid and oppose disk material.
Inventors
- 👤 Stephen D. Kuslich
- 👤 James D. Corin
- 👤 George W. Bagby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:56
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/30721; A61F2/30744; A61F2/446; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8875; A61F2/442; A61F2/46; A61F2/4603; A61F2/4611; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30125; A61F2002/30138; A61F2002/30143; A61F2002/30199; A61F2002/30205; A61F2002/30217; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30329; A61F2002/30476; A61F2002/305; A61F2002/30535; A61F2002/30593; A61F2002/30617; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30789; A61F2002/30841; A61F2002/30845; A61F2002/3085; A61F2002/30851; A61F2002/30868; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2230/0017; A61F2230/0063; A61F2230/0067; A61F2230/0069; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0097; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00179; Y; Y10; Y10S; Y10S606/00; Y10S606/907
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
141 words
An implant for insertion into a bore formed between opposing vertebrae of an animal's spine, said vertebrae separated by disk material of predetermined dimensions and wherein said bore is generally oval in cross section and extends into said opposing vertebrae and through said disk material, said implant comprising: a rigid body extending from a leading end to a trailing end spaced apart along a longitudinal axis of said body; said body having spaced apart side walls and upper and lower walls cooperating to define hollow interior, said upper and lower walls having means for defining openings extending into an interior of said body; said side walls sized for said implant to be received within said bore with said openings opposing said vertebrae and with said sidewalls sized to oppose said disk material without substantial exposure of disk material to said interior.
Claim 2
Dependent Claim
141 words
An implant for insertion into a bore formed between opposing vertebrae of an animal's spine, said vertebrae separated by disk material of predetermined dimensions and wherein said bore is generally oval in cross section and extends into said opposing vertebrae and through said disk material, said implant comprising: a rigid body extending from a leading end to a trailing end spaced apart along a longitudinal axis of said body; said body having spaced apart side walls and upper and lower walls cooperating to define hollow interior, said upper and lower walls having means for defining openings extending into an interior of said body; said side walls sized for said implant to be received within said bore with said openings opposing said vertebrae and with said sidewalls sized to oppose said disk material without substantial exposure of disk material to said interior.
Claim 3
Dependent Claim
54 words
An implant according to claim 1 wherein said leading end has means for defining axial openings extending through said leading end and exposing said interior, said means dimensioned for said axial openings to oppose said vertebra and with substantial exposure through said axial openings to said interior with said implant received within said bore.
Claim 4
Dependent Claim
35 words
An implant according to claim 1 wherein said trailing end is provided with an axial opening therethrough exposing said interior; said implant further comprising an end cap selected to cover said trailing end axial face.
Claim 5
Dependent Claim
16 words
An implant according to claim 3 wherein said end cap is formed of non-abrasive, bio-compatible material.
Claim 6
Dependent Claim
33 words
An implant according to claim 1 wherein said upper and lower walls are defined by a plurality of arcuate ribs connecting said side walls with said ribs spaced apart to define said openings.
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) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |