US5599279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instruments and method useful for endoscopic spinal procedures
Assignee: United States Surgical Corp
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Filing: 1996-01-29
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Granted: 1997-02-04
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Expires: 2016-01-29
Abstract
Abstract The present invention provides endoscopic instrumentation and surgical techniques especially useful for accessing at least a portion of an intervertebral disc. Vertebrae spreading instruments are provided for spreading adjacent vertebrae to facilitate access to the intervertebral disc are. The disclosed surgical method uses an anterior approach to access the intervertebral disc and spreads adjacent vertebrae utilizing an endoscopic vertebrae spreading instrument.
Inventors
- 👤 Gus J. Slotman
- 👤 Sherman Stein
- 👤 David T. Green
- 👤 Salvatore Castro
- 👤 Carlo A. Mililli
- 👤 Keith Ratcliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/025; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/0256; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2932; A61B2017/2933; A61B2017/2936; A61B2017/2943; A61B2017/2944; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/4455; A61F2/46; A61F2002/4635
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
43 words
A method for accessing vertebral structures comprising: forming an endoscopic channel on an anterior portion of a patient's body; inserting an endoscopic vertebrae spreading instrument into said endoscopic channel; and spreading adjacent vertebrae in the spinal column using said endoscopic vertebrae spreading instrument.
Claim 2
Independent Claim
43 words
A method for accessing vertebral structures comprising: forming an endoscopic channel on an anterior portion of a patient's body; inserting an endoscopic vertebrae spreading instrument into said endoscopic channel; and spreading adjacent vertebrae in the spinal column using said endoscopic vertebrae spreading instrument.
Claim 3
Independent Claim
58 words
A method for intervertebral disc removal comprising: endoscopically accessing the spinal column through an anterior endoscopic port; inserting an endoscopic spreading instrument into the endoscopic port: spreading apart vertebrae adjacent an intervertebral disc using the endoscopic spreading instrument; accessing an intervertebral disc nucleus; and removing at least a portion of the disc nucleus through said anterior endoscopic port.
Claim 4
Independent Claim
58 words
A method for intervertebral disc removal comprising: endoscopically accessing the spinal column through an anterior endoscopic port; inserting an endoscopic spreading instrument into the endoscopic port: spreading apart vertebrae adjacent an intervertebral disc using the endoscopic spreading instrument; accessing an intervertebral disc nucleus; and removing at least a portion of the disc nucleus through said anterior endoscopic port.
Claim 5
Dependent Claim
29 words
A method for intervertebral disc removal according to claim 2 wherein the step of accessing an intervertebral disc nucleus includes removal of a portion of an intervertebral disc annulus.
Claim 6
Dependent Claim
43 words
A method for intervertebral disc removal according to claim 2 further comprising the step of cutting the disc nucleus with an endoscopic cutting instrument prior to the step of removing at least a portion of said disc nucleus through said anterior endoscopic port.
Claim 7
Dependent Claim
47 words
The method for intervertebral disc removal according to claim 2, wherein the step of spreading apart vertebrae includes positioning at least two vertebrae spreading arm members of said endoscopic spreading instrument between adjacent vertebrae and moving said arm members to an open position to spread the vertebrae.
Claim 8
Dependent Claim
54 words
The method for intervertebral disc removal according to claim 5, wherein the step of spreading apart vertebrae includes initially positioning said arm members of said endoscopic spreading instrument between the vertebrae such that exterior tissue contacting surfaces contact the vertebrae and thereafter moving said arm members to said open position to spread the vertebrae.
Claim 9
Dependent Claim
30 words
The method for intervertebral disc removal according to claim 6, wherein the step of spreading apart vertebrae includes pivoting said arm members from a closed position to said open position.
Claim 10
Dependent Claim
37 words
The method for intervertebral disc removal according to claim 5, wherein the step of spreading apart vertebrae includes actuating an actuating mechanism of said endoscopic spreading instrument to move said arm members to said open position thereof.
Claim 11
Dependent Claim
37 words
The method for intervertebral disc removal according to claim 8, wherein the step of actuating the actuating mechanism includes rotating a rotatable control knob of said actuating mechanism to move said arm members to said open position.
Claim 12
Dependent Claim
64 words
The method for intervertebral disc removal according to claim 5, wherein the step of spreading apart vertebrae includes initially positioning said arm members between adjacent vertebrae such that said arm members are in general parallel relation with a longitudinal axis defined by said endoscopic spreading instrument and thereafter moving said arm members in an opposed direction to said open position to spread the vertebrae.
Claim 13
Dependent Claim
43 words
The method for intervertebral disc removal according to claim 10, wherein the step of spreading apart vertebrae includes moving said arm members in the transverse direction to said open position while maintaining the parallel relation of said arm members with said longitudinal axis.
Claim 14
Dependent Claim
29 words
The method for intervertebral disc removal according to claim 8 wherein the step of actuating the actuating mechanism reciprocates an actuating rod interfitting with one of said arm members.
References Cited (Backward Citations)
DE8303342U1
Cited
US832201A
Cited
US1331737A
Cited
US1400648A
Cited
US1737488A
Cited
US2067031A
Cited
US2137121A
Cited
US2689568A
Cited
US3486505A
Cited
US3916907A
Cited
US4034746A
Cited
US4174715A
Cited
US4369788A
Cited
US4393872A
Cited
EP0077159A1
Cited
US4545374A
Cited
US4655219A
Cited
US4573448A
Cited
USRE33258E
Cited
US4654028A
Cited
US4599086A
Cited
US4909789A
Cited
EP0260044A1
Cited
US4747394A
Cited
US4898161A
Cited
US5019081A
Cited
US4926849A
Cited
US5000163A
Cited
US4896661A
Cited
US5122130A
Cited
US4997432A
Cited
US4932395A
Cited
US5242439A
Cited
US5197971A
Cited
US5027793A
Cited
US5113846A
Cited
US5195507A
Cited
US5176129A
Cited
US5178133A
Cited
US5241972A
Cited
US5275610A
Cited
US5235966A
Cited
US5195541A
Cited
US5195506A
Cited
US5313962A
Cited
US5152279A
Cited
US5213112A
Cited
WO1993017625A1
Cited
US5357983A
Cited
US5439464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |