EP1330987B1
Expired / Lapsed
EP
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Interspinous vertebral implant
Assignee: biomet Spain Orthopaedics Sl elberg Jean-Franc
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Filing: 2002-12-12
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Granted: 2005-03-09
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Expires: 2022-12-12
Abstract
Abstract The implant (10), fitted between the spiny apophyses (3, 4) of two adjacent vertebrae (1, 2), consists of a body in the form of a simple loop anchored to the vertebrae by fixing lugs (12, 13) with holes for studs. The studs have tapering sides to fit in the holes and pointed tips to engage with the spiny apophyses. In variants of the design the implant body can be in a figure-8 or kidney shape, and the lugs can be fixed with pedicular anchoring screws
Inventors
- 👤 Jean-François ELBERG
- 👤 Gérard De Witte
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7062; A61B17/7067
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
218 words
Interspinous vertebral implant comprising a body (11)
compressible in the direction of the spine, formed by
a single loop closed upon itself, and intended to be
inserted between two consecutive interspinous
processes (3, 4), said body (11) being provided with
means for anchoring it to at least one spinous process
consisting of two fixing lugs (12, 13), which are
integral with the body (11), and extending on either
side of the spinous process in the area of which they
are intended to anchor when the implant is in place,
and being each traversed by a through-opening (14, 15)
oriented in a direction substantially perpendicular to
the general plane of said process, characterized in that : said implant comprises fixing studs (23), which
thus first comprise an insertion zone (24) in the
form of a morse cone and with a shape complementing
the internal shape of the through-openings (14,
15), this zone in the form of a morse cone (24)
being continued by a cylindrical zone (25), of
smaller diameter, which ends in a pointed profile
(26) in order to permit crimping of said stud in
the spinous process and, by this means, fixation of
the implant ; said through-openings being intended to receive
said fixing studs (23) to be crimped in the area of
the process in question.
Claim 2
Dependent Claim
40 words
Interspinous vertebral implant according to claim 1,
wherein the body (11) is formed by a spring blade
closed upon itself, substantially in the shape of a
figure of 8 or kidney bean, and symmetrical with
respect to the median plane.
Claim 3
Dependent Claim
92 words
Interspinous vertebral implant according to any of
claims 1 and 2, wherein the anchoring means are formed
by fixing lugs (12, 13, 16, 17), also mutually
symmetrical with respect to the median plane of the
body (11), even parallel to one another, said fixing
lugs having, near their free end, a through-opening
(14, 15, 18, 19) of truncated cone shape functioning
as a morse cone able to cooperate with anchoring studs
(23) of complementary shape, thus ensuring their
retention in this area once the studs have been
crimped in the spinous process.
Claim 4
Dependent Claim
44 words
Interspinous vertebral implant according to anyone of
claims 1 to 3, wherein the body (11) comprises two
sets of two fixing lugs in order to thus permit
fixation of the interspinous vertebral implant in the
area of the corresponding processes of two consecutive
vertebrae.
Claim 5
Dependent Claim
73 words
Interspinous vertebral implant according to anyone of
claims 1 to 3, wherein the body (11) comprises a first
set of two fixing lugs (12, 13) on a spinous process,
and a second set of fixing lugs (28, 29) which are
substantially in the form of a divergent arc and whose
two free ends are each provided with a through-opening
(30, 31) intended to permit insertion of fixing screws
(33, 34) in this area.
Claim 6
Dependent Claim
23 words
Interspinous vertebral implant according to claim 5,
wherein the through-openings (30, 31) are oriented
parallel to the general plane of the spinous
processes.
References Cited (Backward Citations)
No citation records indexed.
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