US5496318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interspinous segmental spine fixation device
Assignee: DJO LLC
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Filing: 1993-08-18
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Granted: 1996-03-05
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Expires: 2013-08-18
Abstract
Abstract A spinal fixation device and method for the stabilization of the spine after surgical procedures such as those related to degenerative disc diseases are described. The device comprises a spacer, which is placed between adjacent vertebrae when installed and a locking mechanism attached to the spacer. The locking mechanism attaches the device to the spinous processes of adjacent vertebrae of the spine in a manner which is non-invasive with respect to the vertebrae to which it is attached.
Inventors
- 👤 Robert S. Howland
- 👤 Richard M. Salib
- 👤 Kenneth Pettine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7062; A61B17/7068; A61B17/7053; A61B17/7071
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A spinal fixation device comprising: an H-shaped spacer for insertion between adjacent spinous processes comprising a first element forming one side of the H-shape and a second element forming another side of the H shape wherein the first element interlocks with the second element at the crossbar of the H-shape; a belt, wherein the belt is of sufficient length to encircle adjacent spinous processes and an installed spacer; and means of attaching the belt to the outside of the spacer.
Claim 2
Dependent Claim
80 words
A spinal fixation device comprising: an H-shaped spacer for insertion between adjacent spinous processes comprising a first element forming one side of the H-shape and a second element forming another side of the H shape wherein the first element interlocks with the second element at the crossbar of the H-shape; a belt, wherein the belt is of sufficient length to encircle adjacent spinous processes and an installed spacer; and means of attaching the belt to the outside of the spacer.
Claim 3
Dependent Claim
17 words
A spinal fixation device as recited in claim 1 wherein the spacer comprises ultra high density polyethylene.
Claim 4
Dependent Claim
19 words
A spinal fixation device as recited in claim 1 wherein the belt comprises a flat, woven, stainless steel material.
Claim 5
Dependent Claim
21 words
A spinal fixation device as recited in claim 3 wherein the stainless steel belt has a width of about 6 mm.
Claim 6
Dependent Claim
28 words
A spinal fixation device as recited in claim 1 wherein the H-shaped spacer further comprises a foot section extending from the spacer for abutting the vertebrae when installed.
Claim 7
Dependent Claim
17 words
A spinal fixation device as recited in claim 5 wherein the foot section has an inverted V-shape.
Claim 8
Dependent Claim
74 words
A spinal fixation device comprising: a spacer for insertion between adjacent spinous processes comprising: a first element having a head section attached to an inverted V-shaped foot section for abutting the vertebrae when installed; and a second element for attaching to the first element; and a locking mechanism attached to the outside of the spacer, wherein the locking mechanism is capable of attaching the device to spinous processes of adjacent vertebrae of a spine.
Claim 9
Dependent Claim
74 words
A spinal fixation device comprising: a spacer for insertion between adjacent spinous processes comprising: a first element having a head section attached to an inverted V-shaped foot section for abutting the vertebrae when installed; and a second element for attaching to the first element; and a locking mechanism attached to the outside of the spacer, wherein the locking mechanism is capable of attaching the device to spinous processes of adjacent vertebrae of a spine.
Claim 10
Dependent Claim
19 words
A spinal fixation device as recited in claim 7 wherein the locking mechanism further comprises a stainless steel belt.
Claim 11
Dependent Claim
21 words
A spinal fixation device as recited in claim 8 wherein the stainless steel belt has a width of about 6 mm.
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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) | 1999-03-05 | 1999-09-04 | 2000-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-05 | 2003-09-04 | 2004-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-05 | 2007-09-04 | 2008-03-05 | $7700.00 | Window Closed / Lapsed |