US6613090B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intervertebral implant
Assignee: Aesculap AG
•
Filing: 2001-07-27
•
Granted: 2003-09-02
•
Expires: 2021-07-27
Abstract
Abstract In an intervertebral implant having an upper and a lower supporting surface for abutment with adjacent vertebral bodies, having a concave dorsal longitudinal side, a ventral longitudinal side lying opposite the latter, having a rounded contour at the two end faces connecting the longitudinal sides and having at least one hole extending through the implant from the upper to the lower supporting surface, in order to facilitate the introduction of bone material after insertion of the intervertebral implant into an intervertebral space it is proposed that in the region of the middle portion of the ventral longitudinal side at least one introduction channel for bone material, which extends through the implant, exits from the implant.
Inventors
- 👤 Franz Konstantin Fuss
- 👤 Ronald J. Sabitzer
- 👤 Stephan Eckhof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/4465; A61F2/46; A61F2/4601; A61F2/4603; A61F2/4611; A61F2/30767; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/3013; A61F2002/30133; A61F2002/30138; A61F2002/30153; A61F2002/30158; A61F2002/30316; A61F2002/30535; A61F2002/30537; A61F2002/30538; A61F2002/30593; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30789; A61F2002/3082; A61F2002/30827; A61F2002/30838; A61F2002/30841; A61F2002/30845; A61F2002/30878; A61F2002/30879; A61F2002/30891; A61F2002/30892; A61F2002/30906; A61F2002/4625; A61F2002/4627; A61F2002/4635; A61F2002/4687; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/001; A61F2230/0015; A61F2230/0017; A61F2230/0019; A61F2230/0026; A61F2250/00; A61F2250/0004; A61F2250/0006; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
146 words
An intervertebral implant comprising: an upper and a lower supporting surface for abutment with adjacent vertebral bodies, a concave dorsal longitudinal side, a ventral longitudinal side lying opposite said dorsal longitudinal side, said ventral longitudinal side having a rounded contour at respective end faces connecting said longitudinal sides, at least one introduction channel for bone material extending through the implant, said channel entering the implant in a portion of one of said end faces adjoining the dorsal longitudinal side and exiting from the implant in a portion of a middle region of the ventral longitudinal side, and fastening elements at the ventral end of said channel for an instrument to be inserted into said channel, wherein the introduction channel is inclined between 30° and 80° relative to a longitudinal axis of the implant in a plane extending substantially parallel to said upper and lower supporting surfaces.
Claim 2
Dependent Claim
146 words
An intervertebral implant comprising: an upper and a lower supporting surface for abutment with adjacent vertebral bodies, a concave dorsal longitudinal side, a ventral longitudinal side lying opposite said dorsal longitudinal side, said ventral longitudinal side having a rounded contour at respective end faces connecting said longitudinal sides, at least one introduction channel for bone material extending through the implant, said channel entering the implant in a portion of one of said end faces adjoining the dorsal longitudinal side and exiting from the implant in a portion of a middle region of the ventral longitudinal side, and fastening elements at the ventral end of said channel for an instrument to be inserted into said channel, wherein the introduction channel is inclined between 30° and 80° relative to a longitudinal axis of the implant in a plane extending substantially parallel to said upper and lower supporting surfaces.
Claim 3
Dependent Claim
19 words
An implant according to claim 1 , wherein the introduction channel crosses a hole which extends through the implant.
Claim 4
Dependent Claim
14 words
An implant according to claim 2 , wherein the fastening elements comprise internal threads.
Claim 5
Dependent Claim
28 words
An implant according to claim 1 , wherein side portions of said ventral longitudinal side, which adjoin said middle region, extend substantially parallel to the dorsal longitudinal side.
Claim 6
Dependent Claim
17 words
An implant according to claim 1 , wherein the supporting surfaces are inclined relative to one another.
Claim 7
Dependent Claim
24 words
An implant according to claim 1 , wherein the introduction channel extends in a plane, which is disposed substantially parallel to the supporting surfaces.
Claim 8
Dependent Claim
27 words
An implant according to claim 1 , wherein two introduction channels run from different end faces of the implant into a set-back recess of said middle region.
Claim 9
Dependent Claim
28 words
An implant according to claim 2 , wherein the implant is constructed symmetrically relative to a center plane perpendicular to the supporting surfaces and to the longitudinal sides.
Claim 10
Dependent Claim
13 words
An implant according to claim 1 , wherein the supporting surfaces carry projections.
Claim 11
Dependent Claim
13 words
An implant according to claim 9 , wherein the projections are spike-shaped points.
Claim 12
Dependent Claim
12 words
An implant according to claim 9 , wherein the projections are ribs.
Claim 13
Dependent Claim
34 words
An implant according to claim 11 , wherein: the introduction channel crosses a hole which extends through the implant; and the projections in the form of ribs extend along the edges of said hole.
Claim 14
Dependent Claim
24 words
An implant according to claim 1 , wherein the ventral longitudinal side has a set-back recess in aid middle region for receiving bone material.
Claim 15
Dependent Claim
18 words
An implant according to claim 13 , wherein the recess extends over the entire height of the implant.
Claim 16
Dependent Claim
29 words
An implant according to claim 13 , wherein the recess is formed by a concave middle portion of the ventral longitudinal side, which middle portion has an arc-shaped contour.
Claim 17
Dependent Claim
31 words
An implant according to claim 15 , wherein side portions of the ventral longitudinal side, which adjoin the middle portion, run in an arc-shaped manner and continuously into the middle portion.
Claim 18
Dependent Claim
149 words
An intervertebral implant comprising: an upper and a lower supporting surface for abutment with adjacent vertebral bodies, a concave dorsal longitudinal side, a ventral longitudinal side lying opposite said dorsal longitudinal side, said ventral longitudinal side having a rounded contour at respective end faces connecting said longitudinal sides, and first and second introduction channels for bone material extending through the implant, each channel entering the implant in a portion of a respective one of said end faces adjoining the dorsal longitudinal side and exiting from the implant in a portion of a middle region of the ventral longitudinal side, wherein: the introduction channels are inclined between 30° and 80° relative to a longitudinal axis of the implant in a plane extending substantially parallel to said upper and lower supporting surfaces, and the introduction channels each cross a respective hole extending through the implant adjacent the respective end face thereof.
Claim 19
Dependent Claim
149 words
An intervertebral implant comprising: an upper and a lower supporting surface for abutment with adjacent vertebral bodies, a concave dorsal longitudinal side, a ventral longitudinal side lying opposite said dorsal longitudinal side, said ventral longitudinal side having a rounded contour at respective end faces connecting said longitudinal sides, and first and second introduction channels for bone material extending through the implant, each channel entering the implant in a portion of a respective one of said end faces adjoining the dorsal longitudinal side and exiting from the implant in a portion of a middle region of the ventral longitudinal side, wherein: the introduction channels are inclined between 30° and 80° relative to a longitudinal axis of the implant in a plane extending substantially parallel to said upper and lower supporting surfaces, and the introduction channels each cross a respective hole extending through the implant adjacent the respective end face thereof.
Claim 20
Dependent Claim
15 words
An implant according to claim 17 , wherein the holes have a circular cross section.
References Cited (Backward Citations)
DE3637314A1
Cited
US4917704A
Cited
US4904261A
Cited
US5702449A
Cited
FR2736537A1
Cited
US6111164A
Cited
US5861041A
Cited
US20020161445A1
Cited
US6482233B1
Cited
US6143033A
Cited
US6454805B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-09-01 | 2007-03-03 | 2007-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-01 | 2011-03-03 | 2011-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-01 | 2015-03-03 | 2015-09-02 | $7700.00 | Window Closed / Lapsed |