Patent US6102949A successfully refreshed from Google Patents.
US6102949A
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Intervertebrae implant
Assignee: Biedermann Technologies GmbH and Co KG
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Filing: 1998-11-30
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Granted: 2000-08-15
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Expires: 2018-11-30
Abstract
Abstract An intervertebrae implant comprises two spaced sidewalls 1, 2, a front wall connecting the sidewalls at one end thereof, a back wall connecting the other end of the sidewall and corresponding apertures in the bottom and top surfaces extending transversely to the above-defined walls. In order to lock the implant in a desired position between two adjacent vertebrae a screw 13, 13' is rotatably provided in the front or back wall 3, 4, resp., and adapted to have a portion projecting beyond the bottom or top surface, resp., in a first rotational position and no projecting portion in a second rotational position.
Inventors
- 👤 Lutz Biedermann
- 👤 Jurgen Harms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
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; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30143; A61F2002/30151; A61F2002/30316; A61F2002/30329; A61F2002/30476; A61F2002/30507; A61F2002/30535; A61F2002/30579; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30784; A61F2002/30785; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
An intervertebrae implant comprising a hollow body defined by a first sidewall, a second sidewall spaced from said first sidewall, a front wall connecting said first and second sidewalls at one end thereof, a back wall connecting said first and second sidewalls at their other end, and having open top and bottom surfaces, and screw means supported in said front or back wall for rotation from a first rotational position into a second rotational position, said screw means having a member projecting beyond said top or bottom surface in said first rotational position and not projecting beyond said top or bottom surface in said second rotational position of said screw means.
Claim 2
Dependent Claim
111 words
An intervertebrae implant comprising a hollow body defined by a first sidewall, a second sidewall spaced from said first sidewall, a front wall connecting said first and second sidewalls at one end thereof, a back wall connecting said first and second sidewalls at their other end, and having open top and bottom surfaces, and screw means supported in said front or back wall for rotation from a first rotational position into a second rotational position, said screw means having a member projecting beyond said top or bottom surface in said first rotational position and not projecting beyond said top or bottom surface in said second rotational position of said screw means.
Claim 3
Dependent Claim
49 words
The intervertebrae implant of claim 1, comprising means for rotatably supporting said screw means in said front and back wall, said screw means extending from said front wall to said back wall and having one end supported in said front wall and another end supported in said back wall.
Claim 4
Dependent Claim
22 words
The intervertebrae implant of claim 2, wherein both ends of said screw means comprise engagement apertures for insertion of a screw driver.
Claim 5
Dependent Claim
23 words
The intervertebrae implant of claim 1, wherein said screw means comprises a threaded portion forming said projecting member in said first rotational position.
Claim 6
Dependent Claim
26 words
The intervertebrae implant of claim 1, comprising first screw means provided adjacent to said top surface and second screw means provided adjacent to said bottom surface.
Claim 7
Dependent Claim
37 words
The intervertebrae implant of claim 1, comprising first stop means provided in an interior of said hollow body for engagement with a projection provided at said screw means in said first rotational position of said screw means.
Claim 8
Dependent Claim
24 words
The intervertebrae implant of claim 6, comprising second stop means for engagement with said projection in said second rotational position of said screw means.
Claim 9
Dependent Claim
18 words
The intervertebrae implant of claim 1, comprising at least one aperture provided in said first and second sidewalls.
Claim 10
Dependent Claim
19 words
The intervertebrae implant of claim 8, wherein said first and second sidewalls each comprise a plurality of diamond-shaped apertures.
Claim 11
Dependent Claim
23 words
The intervertebrae implant of claim 1, wherein said sidewalls have a substantially trapezoidal shape so as to form a truncated wedge-shaped hollow body.
Claim 12
Dependent Claim
12 words
The intervertebrae implant of claim 1, wherein said sidewalls are substantially rectangular.
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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) | 2003-08-15 | 2004-02-14 | 2004-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-15 | 2008-02-14 | 2008-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-15 | 2012-02-14 | 2012-08-15 | $7700.00 | Window Closed / Lapsed |