US20020077702A1
Expired / Lapsed
US
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Dynamic implanted intervertebral spacer
Assignee: Atec Spine Inc
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Filing: 2001-11-21
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Granted: —
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Expires: 2021-11-21
Abstract
Abstract The invention is a single piece, self seating and locking dynamic intervertebral spacer. The dynamic spacer is load-supporting but also able to undergo flexure in either or both the lateral and sagittal planes.
Inventors
- 👤 Salvatore Castro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/4455; A61F2/3094; A61F2/30965; A61F2/28; A61F2002/2835; A61F2002/286; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30131; A61F2002/30159; A61F2002/30168; A61F2002/30316; A61F2002/30535; A61F2002/30565; A61F2002/30571; A61F2002/30594; A61F2002/30604; A61F2002/30616; A61F2/30767; A61F2/30771; A61F2002/30841; A61F2002/30845; A61F2002/30878; A61F2002/30884; A61F2002/448; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0028; A61F2230/0043; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
18 words
1 . An implantable dynamic intervertebral spacer configured to be flexible in both the saggital and lateral planes.
Claim 2
Dependent Claim
18 words
1 . An implantable dynamic intervertebral spacer configured to be flexible in both the saggital and lateral planes.
Claim 3
Dependent Claim
15 words
2 . The spacer of claim 1 wherein the spacer is of single piece construction.
Claim 4
Dependent Claim
25 words
3 . The spacer of claim 2 further having a body comprising a plurality of upper tail pieces and a plurality of lower tail pieces.
Claim 5
Dependent Claim
33 words
4 . The spacer of claim 3 in which the plurality of upper tail pieces comprises exactly two elongated tail pieces, the plurality of lower tail pieces comprises exactly two elongated tail pieces.
Claim 6
Dependent Claim
16 words
5 . The spacer of claim 4 in which the tail pieces are of equal length.
Claim 7
Dependent Claim
67 words
6 . The spacer of claim 4 in which the two upper tail pieces are vertically spaced apart from the two lower tail pieces, the two upper tail pieces being also horizontally spaced apart from each other by a specified distance, the lower tail pieces further being horizontally spaced apart from each other by a distance equal to the spacing apart distance of the upper tail pieces.
Claim 8
Dependent Claim
30 words
7 . The spacer of claim 3 in which each of the plural upper tail pieces and each of the plural lower tail pieces additionally comprises a barb support post.
Claim 9
Dependent Claim
24 words
8 . The spacer of claim 7 in which each of the barb support posts additionally comprises attached thereto an elongated bone engaging barb.
Claim 10
Dependent Claim
34 words
9 . The spacer of claim 4 in which each of the exactly two upper elongated tail pieces and each of the exactly two lower elongated tail pieces additionally comprises a barb support post.
Claim 11
Dependent Claim
24 words
10 . The spacer of claim 9 in which each of the barb support posts additionally comprises attached thereto an elongated bone engaging barb.
Claim 12
Dependent Claim
30 words
11 . The spacer of claim 8 in which each of the barb support posts additionally comprising an elongated bone engaging barb further additionally comprises a medially inwardly angled facet.
Claim 13
Dependent Claim
30 words
12 . The spacer of claim 10 in which each of the barb support posts additionally comprising an elongated bone engaging barb further additionally comprises a medially inwardly angled facet.
Claim 14
Dependent Claim
29 words
13 . The spacer of claim 11 in which each of the barb support posts additionally comprising an elongated bone engaging barb further comprises a bone gripping latching portion.
Claim 15
Dependent Claim
29 words
14 . The spacer of claim 12 in which each of the barb support posts additionally comprising an elongated bone engaging barb further comprises a bone gripping latching portion.
Claim 16
Dependent Claim
26 words
15 . The spacer of claim 7 in which each of the barb support posts additionally comprises attached thereto an elongated bullet configured to engage bone.
Claim 17
Dependent Claim
26 words
16 . The spacer of claim 9 in which each of the barb support posts additionally comprises attached thereto an elongated bullet configured to engage bone.
Claim 18
Dependent Claim
32 words
17 . The spacer of claim 15 in which each of the barb support posts additionally comprising an elongated bullet configured to engage bone further additionally comprises a medially inwardly angled facet.
Claim 19
Dependent Claim
32 words
18 . The spacer of claim 10 in which each of the barb support posts additionally comprising an elongated bullet configured to engage bone further additionally comprises a medially inwardly angled facet.
Claim 20
Dependent Claim
19 words
19 . The spacer of claim 2 in which the spacer is configured to be self guiding during installation.
Claim 21
Dependent Claim
26 words
20 . The spacer of claim 19 in which the self guiding configuration comprises a generally wedge shaped configuration on the distal portion of the spacer.
Claim 22
Dependent Claim
41 words
21 . The spacer of claim 4 in which the portion of the body connecting the upper tail pieces and the lower tail pieces provides independently flexible linkage between each of the upper tail pieces and the corresponding lower tail pieces.
Claim 23
Dependent Claim
35 words
22 . The spacer of claim 6 in which the two upper tail pieces and the two lower tail pieces are configured to provide a space capable of receiving bone graft and bone growth material.
Claim 24
Dependent Claim
57 words
23 . The spacer of claim 22 in which the two upper tail pieces and the two lower tail pieces are vertically spaced apart by a distance selected to provide sufficient flexibility to the overall configuration to promote new bone growth in bone graft and bone growth material placed in the space capable of receiving such material.
Claim 25
Dependent Claim
53 words
24 . The spacer of claim 3 additionally comprising a connecting portion between the upper tail pieces and the lower tail pieces, said connecting portion being configured with an open inner portion with a radius, said radius being capable of being chosen to produce a desired flexibility of the spacer as a whole.
References Cited (Backward Citations)
No citation records indexed.
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