US7300465B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intervertebral allograft spacer
Assignee: Synthes USA LLC
•
Filing: 2005-06-10
•
Granted: 2007-11-27
•
Expires: 2025-06-10
Abstract
Abstract An allogenic intervertebral implant for fusing vertebrae is disclosed. The implant is a piece of allogenic bone conforming in size and shape with a portion of an end plate of a vertebra. The implant has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and bottom surfaces of the implant have a plurality of teeth to resist expulsion and provide initial stability. The implant according to the present invention provides initial stability need for fusion without stress shielding.
Inventors
- 👤 David C. Paul
- 👤 Hansjuerg Emch
- 👤 Beat Schenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:24
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/006; A; A61; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/3094; A61F2/30942; A61F2/44; A61F2/4455; A61F2/30721; A61F2/30724; A61F2/30744; A61F2/30965; A61F2/442; A61F2/4465; A61F2/46; A61F2/4603; A61F2/4611; A61F2/4644; A61F2002/2817; A61F2002/2835; A61F2002/2839; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30011; A61F2002/30057; A61F2002/3006; A61F2002/30062; A61F2002/30075; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30125; A61F2002/30126; A61F2002/30133; A61F2002/30138; A61F2002/30153; A61F2002/30158; A61F2002/30199; A61F2002/302; A61F2002/30224; A61F2002/30228; A61F2002/30233; A61F2002/30235; A61F2002/30237; A61F2002/3028; A61F2002/30316; A61F2002/30317; A61F2002/30324; A61F2002/30327; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30362; A61F2002/30364; A61F2002/30367; A61F2002/30383; A61F2002/30387; A61F2002/30433; A61F2002/30448; A61F2002/30459; A61F2002/30462; A61F2002/30476; A61F2002/30477; A61F2002/30481; A61F2002/30492; A61F2002/30494; A61F2002/30507; A61F2002/30515; A61F2002/30535; A61F2002/30593; A61F2002/30599; A61F2002/30604; A61F2002/30616; A61F2002/30617; A61F2002/30667; A61F2002/3071; A61F2002/30733; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30782; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/3082; A61F2002/30841; A61F2002/30843; A61F2002/30878; A61F2002/30891; A61F2002/30892; A61F2002/30894; A61F2002/30904; A61F2/30907; A61F2002/30909; A61F2002/30957; A61F2002/30971; A61F2002/30975; A61F2002/4635; A61F2002/4649; A61F2210/00; A61F2210/0004; A61F2210/0061; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0041; A61F2220/005; A61F2220/0066; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2230/0015; A61F2230/0017; A61F2230/0019; A61F2230/0026; A61F2230/0063; A61F2230/0065; A61F2230/0069; A61F2250/00; A61F2250/0014; A61F2250/0023; A61F2250/0036; A61F2250/0039; A61F2250/0058; A61F2250/006; A61F2250/0063; A61F2250/0085; A61F2250/0089; A61F2250/0096; A61F2250/0097; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00179; A61F2310/00293; A61F2310/00353; B29C33/00; B29C33/20; B29C33/26; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B29L2031/3041; Y; Y10; Y10S; Y10S623/00; Y10S623/924; Y10S623/925
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
96 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; and wherein the implant has a length between about 8 mm and about 30 mm.
Claim 2
Dependent Claim
96 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; and wherein the implant has a length between about 8 mm and about 30 mm.
Claim 3
Dependent Claim
18 words
The implant of claim 1 , wherein the length is between about 8 mm and about 18 mm.
Claim 4
Dependent Claim
18 words
The implant of claim 1 , wherein the length is between about 22 mm and about 30 mm.
Claim 5
Dependent Claim
18 words
The implant of claim 1 , wherein the length is between about 15 mm and about 30 mm.
Claim 6
Dependent Claim
17 words
The implant of claim 1 , wherein at least one textured portion comprises a plurality of teeth.
Claim 7
Dependent Claim
17 words
The implant of claim 5 , wherein the teeth are arranged in a plurality of adjacent rows.
Claim 8
Dependent Claim
14 words
The implant of claim 5 , wherein the teeth have a pyramidal shape profile.
Claim 9
Dependent Claim
14 words
The implant of claim 5 , wherein the teeth have a saw tooth shape.
Claim 10
Dependent Claim
15 words
The implant of claim 1 , wherein the implant is made entirely of allogenic bone.
Claim 11
Dependent Claim
20 words
The implant of claim 1 , wherein the implant has a height between about 4 mm and about 30 mm.
Claim 12
Dependent Claim
20 words
The implant of claim 1 , wherein the implant has a width between about 6 mm and about 15 mm.
Claim 13
Dependent Claim
42 words
The implant of claim 1 , wherein the implant further includes a first lateral side and a second lateral side, the first and second lateral sides having a channel formed therein, the channel being sized and configured to receive a surgical instrument.
Claim 14
Dependent Claim
23 words
The implant of claim 1 , wherein the implant further comprises a threaded hole for engaging a threaded pin of a surgical instrument.
Claim 15
Dependent Claim
41 words
The implant of claim 1 , wherein the implant further comprises an anterior side and a posterior side, the incline being sized and configured so that a height of the implant gradually decreases from the anterior side to the posterior side.
Claim 16
Dependent Claim
43 words
The implant of claim 14 , wherein the anterior side of the implant includes a transition forming a rounded edge between the anterior side and the top surface and between the anterior side and the bottom surface to facilitate insertion of the implant.
Claim 17
Dependent Claim
15 words
The implant of claim 1 , wherein the top and bottom surfaces are curved surfaces.
Claim 18
Dependent Claim
21 words
The implant of claim 16 , wherein the curved top and bottom surfaces conform to the contours of the end plates.
Claim 19
Dependent Claim
21 words
The implant of claim 1 , wherein the implant is formed from at least two pieces of allogenic bone joined together.
Claim 20
Dependent Claim
20 words
The implant of claim 18 , wherein the implant comprises a first lateral piece joined to a second lateral piece.
Claim 21
Dependent Claim
29 words
The implant of claim 19 , wherein the first and second lateral pieces are substantially C-shaped so that when joined side by side they define the hollow interior space.
Claim 22
Dependent Claim
20 words
The implant of claim 19 , further comprising at least one pin for joining the first and second lateral pieces.
Claim 23
Dependent Claim
22 words
The implant of claim 18 , wherein the at least two pieces of allogenic are joined together by at least one pin.
Claim 24
Dependent Claim
20 words
The implant of claim 1 , wherein the hollow interior space extends from the top surface to the bottom surface.
Claim 25
Dependent Claim
106 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a height between about 4 mm and about 100 mm.
Claim 26
Dependent Claim
106 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a height between about 4 mm and about 100 mm.
Claim 27
Dependent Claim
18 words
The implant of claim 24 , wherein the height is between about 10 mm and about 100 mm.
Claim 28
Dependent Claim
18 words
The implant of claim 24 , wherein the height is between about 4 mm and about 30 mm.
Claim 29
Dependent Claim
18 words
The implant of claim 24 , wherein the height is between about 4 mm and about 20 mm.
Claim 30
Dependent Claim
22 words
The implant of claim 24 , wherein the height of the anterior side is larger than the height of the posterior side.
Claim 31
Dependent Claim
23 words
The implant of claim 24 , wherein the height of the anterior side is substantially equal to the height of the posterior side.
Claim 32
Dependent Claim
17 words
The implant of claim 24 , wherein at least one textured portion comprises a plurality of teeth.
Claim 33
Dependent Claim
17 words
The implant of claim 30 , wherein the teeth are arranged in a plurality of adjacent rows.
Claim 34
Dependent Claim
14 words
The implant of claim 30 , wherein the teeth have a pyramidal shape profile.
Claim 35
Dependent Claim
116 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface and bottom surface are substantially parallel to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a height between about 4 mm and about 100 mm and wherein the height of the anterior side is larger than the height of the posterior side.
Claim 36
Dependent Claim
116 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface and bottom surface are substantially parallel to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a height between about 4 mm and about 100 mm and wherein the height of the anterior side is larger than the height of the posterior side.
Claim 37
Dependent Claim
18 words
The implant of claim 33 , wherein the height is between about 10 mm and about 100 mm.
Claim 38
Dependent Claim
18 words
The implant of claim 33 , wherein the height is between about 4 mm and about 30 mm.
Claim 39
Dependent Claim
18 words
The implant of claim 33 , wherein the height is between about 4 mm and about 20 mm.
Claim 40
Dependent Claim
17 words
The implant of claim 33 , wherein at least one textured portion comprises a plurality of teeth.
Claim 41
Dependent Claim
17 words
The implant of claim 37 , wherein the teeth are arranged in a plurality of adjacent rows.
Claim 42
Dependent Claim
14 words
The implant of claim 37 , wherein the teeth have a pyramidal shape profile.
Claim 43
Dependent Claim
106 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a width between about 6 mm and about 15 mm.
Claim 44
Dependent Claim
106 words
An intervertebral implant comprising at least one piece of allogenic bone provided with a hollow interior space, the implant having top and bottom surfaces configured and adapted in use to face endplates of adjacent vertebrae; wherein at least a portion of the top and bottom surfaces is textured to resist migration of the implant, the implant further comprising a mid-plane, and wherein the top surface is inclined in a range between about 4.2° and about 15° with respect to the mid-plane; the implant further comprising an anterior side and a posterior side; wherein the implant has a width between about 6 mm and about 15 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) | 2010-11-26 | 2011-05-28 | 2011-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-11-26 | 2015-05-28 | 2015-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-11-26 | 2019-05-28 | 2019-11-27 | $7700.00 | Window Closed / Lapsed |