US6231610B1
Expired / Lapsed
US
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Anterior cervical column support device
Assignee: Rhausler Inc
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Filing: 1999-08-25
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Granted: 2001-05-15
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Expires: 2019-08-25
Abstract
Abstract An spinal column support device for stabilizing and repairing problems associated with the material located between vertebra located in the cervical area of the spinal column. The support device has a hollow isosceles trapezoidal right prism-shaped skeletal frame with two load bearing surfaces. Each load bearing surface includes serrations. The support device also includes a cervical plate having two screw holes. The support devices is inserted between two vertebrae located in the cervical area of the spine wherein each vertebrae rests on a load bearing surface. The serrations keep the support device from backing out, while screws in the screw holes of the cervical plate help hold the cervical plate in position.
Inventors
- 👤 Fred Geisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/447; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7059; A61B17/84; A61B17/86; A61F2/30756; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30138; A61F2002/30156; A61F2002/30158; A61F2002/30199; A61F2002/30261; A61F2002/3028; A61F2002/30316; A61F2002/30535; A61F2002/30576; A61F2002/30578; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30777; A61F2002/30784; A61F2002/30787; A61F2002/30789; A61F2002/3079; A61F2002/30904; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0017; A61F2230/0023; A61F2230/0026; A61F2230/0063; A61F2230/0082; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
242 words
A anterior cervical column support device for insertion between a first spinal vertebra and a second spinal vertebra, comprising: a hollow isosceles trapezoidal right prism-shaped skeletal frame having a front surface, a rear surface, two side surfaces, a top load bearing surface and a bottom load bearing surface; each side surface has a trapezoidal shape and attached between the front surface and rear surface; the top load bearing surface attaches to each side surface and to the front and rear surfaces such that an obtuse angle is formed between the top load bearing surface and the front surface and an acute angle is formed between the top load bearing surface and the rear surface, wherein the top load bearing surface includes serrations for increasing frictional forces between the top load bearing surface and the first vertebrae; and the bottom load bearing surface attaches to each side surface and to the front and rear surfaces such that an obtuse angle is formed between the bottom load bearing surface and the front surface and an acute angle is formed between the bottom load bearing surface and the rear surface, wherein the bottom load bearing surface includes serrations for increasing frictional forces between the bottom load bearing surface and the second vertebrae; and a rear plate attached to the rear surface of the support device, the rear plate including two indented offset screw holes for receiving two screws for holding the rear plate in position.
Claim 2
Dependent Claim
242 words
A anterior cervical column support device for insertion between a first spinal vertebra and a second spinal vertebra, comprising: a hollow isosceles trapezoidal right prism-shaped skeletal frame having a front surface, a rear surface, two side surfaces, a top load bearing surface and a bottom load bearing surface; each side surface has a trapezoidal shape and attached between the front surface and rear surface; the top load bearing surface attaches to each side surface and to the front and rear surfaces such that an obtuse angle is formed between the top load bearing surface and the front surface and an acute angle is formed between the top load bearing surface and the rear surface, wherein the top load bearing surface includes serrations for increasing frictional forces between the top load bearing surface and the first vertebrae; and the bottom load bearing surface attaches to each side surface and to the front and rear surfaces such that an obtuse angle is formed between the bottom load bearing surface and the front surface and an acute angle is formed between the bottom load bearing surface and the rear surface, wherein the bottom load bearing surface includes serrations for increasing frictional forces between the bottom load bearing surface and the second vertebrae; and a rear plate attached to the rear surface of the support device, the rear plate including two indented offset screw holes for receiving two screws for holding the rear plate in position.
Claim 3
Dependent Claim
78 words
The anterior cervical column support device of claim 1 wherein the acute angle between the top load bearing surface and the rear surface and the acute angle between the bottom load bearing surface and the rear surface is between 85 and 89 degrees and the corresponding obtuse angle between the top load bearing surface and the front surface and the obtuse angle between the bottom load bearing surface and the front surface is between 91 and 95 degrees.
Claim 4
Dependent Claim
78 words
The anterior cervical column support device of claim 2 wherein the acute angle between the top load bearing surface and the rear surface and the acute angle between the bottom load bearing surface and the rear surface is between 88 and 89 degrees and the corresponding obtuse angle between the top load bearing surface and the front surface and the obtuse angle between the bottom load bearing surface and the front surface is between 91 and 92 degrees.
Claim 5
Dependent Claim
27 words
The anterior cervical column support device of claim 1 wherein one screw is driven into the first vertebrae and one screw is driven into the second vertebrae.
Claim 6
Dependent Claim
19 words
The anterior cervical column support device of claim 1 wherein the entire support device is constructed of bio-compatible material.
Claim 7
Dependent Claim
15 words
The anterior cervical column support device of claim 5 wherein the bio-compatible material is titanium.
Claim 8
Dependent Claim
29 words
The anterior cervical column support device of claim 1 wherein the serrations on the top load bearing surface and the serrations on the bottom load bearing surface are uni-directional.
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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) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |