EP0508473B1
Expired / Lapsed
EP
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Endovascular graft having bifurcation
Assignee: Endovascular Technologies Inc
•
Filing: 1992-04-10
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Granted: 1998-10-28
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Expires: 2012-04-10
Abstract
No abstract record available.
Inventors
- 👤 Alec A. Piplani
- 👤 Dinah B. Quiachon
- 👤 Wesley D. Sterman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/954; A61F2/958; A61B; A61B90/00; A61B90/39; A61F2/82; A61F2/86; A61F2/88; A61F2/89; A61F2002/065; A61F2002/075; A61F2/848; A61F2002/8486; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
An endovascular graft (20) for intraluminal
placement proximate the aortic bifurcation of a
patient to repair an aortic aneurysm, the graft (20)
comprising: a main tubular body (112); first and
second tubular legs (116, 177) joined to the main
tubular body (112) in a bifurcation (114), the main
tubular body (112) and the first and second tubular
legs (116, 117) being formed of a flexible, surgically
implantable material and having respective first,
second and third openings (113, 118, 119) therein in
communication with each other; and first expandable
attachment means (126) secured to the main tubular
body (112) adjacent the first opening (113),
characterised in that prior to said intraluminal
placement the graft (20) comprises only one further
expandable attachment means (127) secured to the first
tubular leg (116) adjacent the second opening (118).
Claim 2
Dependent Claim
43 words
An endovascular graft (20) as claimed in
claim 1, wherein each of said first and further
expandable attachment means (126, 127) includes a
self-expanding spring means having a plurality of
hooks (141) which forcibly engage the patient's
vasculature when the spring means self-expands.
Claim 3
Dependent Claim
55 words
An endovascular graft (20) as claimed in
claim 2, wherein said spring means (126, 127) has a
low-profile collapsed diameter permitting free
movement in the vasculature and, after it self-expands,
an expanded diameter that is substantially
the same as or larger than the inside diameter of the
patient's vasculature thereby creating a substantially
fluid-tight seal.
Claim 4
Dependent Claim
67 words
An endovascular graft (20) as claimed in
claim 3, wherein said spring means (126, 127) are
formed of a plurality of vees (131) arranged around a
central axis, each vee (131) being formed with a
respective helical coil spring (133) to yieldably urge
the legs (134, 136) of the vee (131) outwardly and
each vee (131) having a respective hook-like element
(141) provided at its apex (132).
Claim 5
Dependent Claim
31 words
An endovascular graft (20) as claimed in any
one of the preceding claims, wherein the graft (20)
further comprises a pull line (146) removeably
connected to the second tubular leg (117).
Claim 6
Dependent Claim
45 words
An endovascular graft (20) as claimed in
claim 5, wherein said pull line (146) includes a
single line which is looped through said material
forming the second tubular leg (117) and a knot (148)
formed in said pull line (146) remote from said leg
(117).
Claim 7
Dependent Claim
73 words
An endovascular graft (20) as claimed in
claim 6 and further including a flexible tubular
member (151) extending over said pull line (146) into
a region in close proximity to the second tubular leg
(117), and means (153) carried by the tubular member
(151) engaging the knot (148) to prevent the tubular
member (151) from accidentally being removed from the
pull line (146), the flexible tubular member (151)
having an aperture (154) therein.
Claim 8
Dependent Claim
32 words
An endovascular graft (20) as claimed in any
one of the preceding claims, wherein the main tubular
body (112) includes a plurality of longitudinally
spaced apart radiopaque marker means (121) mounted
thereon.
Claim 9
Dependent Claim
36 words
An endovascular graft (20) as claimed in any
one of the preceding claims, wherein a plurality of
longitudinally spaced apart radiopaque markers (121)
are carried by each of said first and second tubular
legs (116, 117).
Claim 10
Dependent Claim
28 words
An endovascular graft (20) as claimed in any
one of the preceding claims, wherein said first and
second tubular legs (116, 117) are of substantially
the same length.
Claim 11
Dependent Claim
44 words
A set comprising a endovascular graft (20) as claimed in any
one of the preceding claims and a third
expandable attachment means (127) to be secured to the
second tubular leg (117) adjacent the third opening
(119) after intraluminal placement of the graft (20).
References Cited (Backward Citations)
US3657744A
Cited
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