Patent US7500977B2 successfully refreshed from Google Patents.
US7500977B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manipulating material in the spine
Assignee: Mis IP Holdings LLC
•
Filing: 2004-10-22
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Granted: 2009-03-10
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Expires: 2024-10-22
Abstract
Abstract Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S 1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.
Inventors
- 👤 Robert L. Assell
- 👤 Steven D. Ainsworth
- 👤 Andrew L. Cragg
- 👤 Eugene A. Dickhudt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/025; A61B17/56; A61B17/58; A61B17/88; A61B17/68; A61B17/70; A61B17/7074; A61B17/16; A61B17/1604; A61B17/1662; A61B17/1671; A61B17/1697; A61B17/17; A61B17/1739; A61B17/1757; A61B17/22; A61B17/84; A61B17/86; A61B17/8605; A61B17/861; A61B17/8615; A61B17/8875; A61B17/8877; A61B17/888; A61B17/8886; A61B17/8888; A61B17/92; A61B17/0218; A61B17/1613; A61B17/1615; A61B17/8897; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/0046; A61B2017/00469; A61B2017/0256; A61B2017/22038; A61B2017/22042; A61B2017/22044; A61B17/34; A61B17/3417; A61B17/3421; A61B2017/3445; A61B2017/922
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
333 words
A cutter, for disrupting material in an intervertebral space, the cutter adapted to extend through a trans-sacral axial bore along an axis extending cephalad from a sacral vertebral body through at least one vertebral body end plate cephalad of the S- 1 vertebral body, the cutter comprising: a cutter sheath having a sheath lumen extending between a sheath proximal end and a sheath distal end; a shaft extending along a longitudinal axis between a shaft proximal end and a shaft distal end, at least a portion of the shaft moveably positioned within the sheath lumen; a cutter blade coupled to the shaft proximate the shaft distal end, the cutter blade having an extended configuration and a retracted configuration, the extended configuration comprising the cutter blade extending generally transverse to the longitudinal axis away from the sheath, the retracted configuration comprising the cutter blade extending substantially parallel the longitudinal axis inside the sheath; a first side surface on the cutter blade for positioning adjacent a vertebral end plate when the cutter blade is oriented generally transverse to the longitudinal axis in the extended configuration; a second side surface on the cutter blade, separated from the first side surface by a blade thickness; a first edge on the cutter blade; a second edge on the cutter blade; and at least one cutting edge on at least one of the first and second edges; wherein the cutter blade further comprises an elongate ribbon that comprises a first end, a distal segment, a bend, a proximal segment and a second end, the first end and second end extending generally parallel to the longitudinal axis of the shaft, the distal segment and the proximal segment extending generally parallel to each other and being connected at the bend, at which the ribbon folds back upon itself such that the second side surface generally opposes itself, the bend being located on the ribbon proximate a maximum transverse distance away from the longitudinal axis of the shaft in the extended configuration.
Claim 2
Dependent Claim
333 words
A cutter, for disrupting material in an intervertebral space, the cutter adapted to extend through a trans-sacral axial bore along an axis extending cephalad from a sacral vertebral body through at least one vertebral body end plate cephalad of the S- 1 vertebral body, the cutter comprising: a cutter sheath having a sheath lumen extending between a sheath proximal end and a sheath distal end; a shaft extending along a longitudinal axis between a shaft proximal end and a shaft distal end, at least a portion of the shaft moveably positioned within the sheath lumen; a cutter blade coupled to the shaft proximate the shaft distal end, the cutter blade having an extended configuration and a retracted configuration, the extended configuration comprising the cutter blade extending generally transverse to the longitudinal axis away from the sheath, the retracted configuration comprising the cutter blade extending substantially parallel the longitudinal axis inside the sheath; a first side surface on the cutter blade for positioning adjacent a vertebral end plate when the cutter blade is oriented generally transverse to the longitudinal axis in the extended configuration; a second side surface on the cutter blade, separated from the first side surface by a blade thickness; a first edge on the cutter blade; a second edge on the cutter blade; and at least one cutting edge on at least one of the first and second edges; wherein the cutter blade further comprises an elongate ribbon that comprises a first end, a distal segment, a bend, a proximal segment and a second end, the first end and second end extending generally parallel to the longitudinal axis of the shaft, the distal segment and the proximal segment extending generally parallel to each other and being connected at the bend, at which the ribbon folds back upon itself such that the second side surface generally opposes itself, the bend being located on the ribbon proximate a maximum transverse distance away from the longitudinal axis of the shaft in the extended configuration.
Claim 3
Dependent Claim
18 words
A cutter as in claim 1 , wherein the cutting edge is coplanar with the first side surface.
Claim 4
Dependent Claim
18 words
A cutter as in claim 1 , wherein the cutting edge is coplanar with the second side surface.
Claim 5
Dependent Claim
27 words
A cutter as in claim 1 , wherein the cutting edge is centered on a plane positioned in-between the first side surface and the second side surface.
Claim 6
Dependent Claim
25 words
A cutter as in claim 1 , comprising a first cutting edge on the first edge and a second cutting edge on the second edge.
Claim 7
Dependent Claim
23 words
A cutter as in claim 1 , wherein the elongate ribbon inclines radially outwardly from an axis of rotation in the extended configuration.
Claim 8
Dependent Claim
25 words
A cutter as in claim 1 , wherein the first end and second end include an attachment structure for attachment to a rotatable drive shaft.
Claim 9
Dependent Claim
14 words
A cutter as in claim 7 , wherein the attachment structure comprises an aperture.
Claim 10
Dependent Claim
25 words
A cutter as in claim 7 , wherein both the first end and the second end are adapted for connection to the rotatable drive shaft.
Claim 11
Dependent Claim
26 words
A cutter as in claim 1 , wherein the cutter blade extends radially outwardly from an axis of rotation, and is inclined in a distal direction.
Claim 12
Dependent Claim
23 words
A cutter as in claim 1 , wherein the cutter blade inclines radially outwardly from an axis of rotation in a proximal direction.
Claim 13
Dependent Claim
14 words
A cutter as in claim 1 , wherein the cutter blade comprises a metal.
Claim 14
Dependent Claim
16 words
A cutter as in claim 12 , wherein the cutter blade comprises a nickel titanium alloy.
Claim 15
Dependent Claim
13 words
A cutter as in claim 1 , secured to a rotatable drive shaft.
Claim 16
Dependent Claim
14 words
A cutter as in claim 1 , wherein the blade comprises a teardrop shape.
Claim 17
Dependent Claim
37 words
A cutter as in claim 1 , wherein the distal segment comprises a first attachment structure secured proximate the shaft distal end and the proximal segment comprises a second attachment structure secured proximate the shaft distal end.
Claim 18
Dependent Claim
34 words
A cutter as in claim 16 , wherein one of the first and the second attachment structures comprises a slot and the other of the first and the second attachment structures comprises a hole.
Claim 19
Dependent Claim
27 words
A cutter as in claim 16 , wherein the first attachment structure and the second attachment structure are secured to the shaft distal end with a pin.
Claim 20
Dependent Claim
32 words
A cutter as in claim 1 , wherein axial movement of the sheath along the longitudinal axis of the shaft actuates the cutter blade between the extended configuration and the retracted configuration.
Claim 21
Dependent Claim
21 words
A cutter as in claim 1 , wherein the shaft further comprises a shaft slot dimensioned to accommodate the cutter blade.
Claim 22
Dependent Claim
27 words
A cutter as in claim 20 , wherein the shaft slot is dimensioned to accommodate at least a portion of the proximal segment of the cutter blade.
Claim 23
Dependent Claim
111 words
A cutter, for disrupting material in an intervertebral space, the cutter adapted to extend through a trans-sacral axial bore along an axis extending cephalad from a sacral vertebral body through at least one vertebral body end plate cephalad of the S- 1 vertebral body, the cutter comprising: a cutter sheath having a sheath lumen extending between a sheath proximal end and a sheath distal end; a shaft extending along a longitudinal axis between a shaft proximal end and a shaft distal end, at least a portion of the shaft moveably positioned within the sheath lumen; and a cutter blade coupled to the shaft, the cutter blade comprising an elongate ribbon comprising:
Claim 24
Dependent Claim
111 words
A cutter, for disrupting material in an intervertebral space, the cutter adapted to extend through a trans-sacral axial bore along an axis extending cephalad from a sacral vertebral body through at least one vertebral body end plate cephalad of the S- 1 vertebral body, the cutter comprising: a cutter sheath having a sheath lumen extending between a sheath proximal end and a sheath distal end; a shaft extending along a longitudinal axis between a shaft proximal end and a shaft distal end, at least a portion of the shaft moveably positioned within the sheath lumen; and a cutter blade coupled to the shaft, the cutter blade comprising an elongate ribbon comprising:
References Cited (Backward Citations)
US1388547A
Cited
US1442051A
Cited
US1630239A
Cited
US2336338A
Cited
US3367326A
Cited
US3454006A
Cited
US3554192A
Cited
US3788320A
Cited
US3892232A
Cited
US3875595A
Cited
US4046144A
Cited
US4135506A
Cited
US4170990A
Cited
US4175555A
Cited
US4265231A
Cited
US4349921A
Cited
US4401112A
Cited
US4309777A
Cited
US4453539A
Cited
US4446578A
Cited
US4545374A
Cited
US4541423A
Cited
US4609370A
Cited
US4554914A
Cited
US4573448A
Cited
US5190546A
Cited
US4553273A
Cited
USRE33258E
Cited
US4657550A
Cited
US4636271A
Cited
US4636217A
Cited
US4650466A
Cited
US4756649A
Cited
US5002546A
Cited
US4863477A
Cited
US4904260A
Cited
US5147404A
Cited
US4844088A
Cited
US4862891A
Cited
US4858601A
Cited
US6120502A
Cited
US5505732A
Cited
US6270498B1
Cited
US6264656B1
Cited
US6210412B1
Cited
US5741253A
Cited
US6123705A
Cited
US5484437A
Cited
US6096038A
Cited
US6447547B1
Cited
US4966604A
Cited
US4969888A
Cited
US5071437A
Cited
US5131382A
Cited
US5015255A
Cited
US5059193A
Cited
US5019079A
Cited
US5030201A
Cited
US5062850A
Cited
US5195968A
Cited
US5171280A
Cited
US5290289A
Cited
US5269785A
Cited
US5231910A
Cited
US5192326A
Cited
US5242461A
Cited
US5242443A
Cited
US5480440A
Cited
US5584887A
Cited
US5545228A
Cited
US5285795A
Cited
US5313962A
Cited
US5762629A
Cited
US5395317A
Cited
US5242444A
Cited
US5366457A
Cited
US5258031A
Cited
US6500173B2
Cited
US5171279A
Cited
US5569248A
Cited
US5496322A
Cited
US5728097A
Cited
US6793656B1
Cited
US6033406A
Cited
US5357983A
Cited
US5396880A
Cited
US5246458A
Cited
US5383884A
Cited
US5653708A
Cited
US6299615B1
Cited
US5336223A
Cited
US5700291A
Cited
EP0611116B1
Cited
US5403276A
Cited
US5415661A
Cited
US5902279A
Cited
US5702454A
Cited
US5785709A
Cited
US5445140A
Cited
US6436098B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2012-03-09 | 2012-09-08 | 2013-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2016-03-09 | 2016-09-08 | 2017-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2020-03-09 | 2020-09-08 | 2021-03-10 | $7700.00 | Window Closed / Lapsed |