Patent EP0945107A2 successfully refreshed from Google Patents.
EP0945107A2
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Helical stent
Assignee: Medtronic Vascular Connaught
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Filing: 1999-01-22
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Granted: —
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Expires: 2019-01-22
Abstract
Abstract An expandable, high scaffold intraluminal stent (20) is provided having a plurality of undulations (28) disposed in a helical geometry about the surface (33) of the stent (20).
Inventors
- 👤 Colm Mcguiness
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 10:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/88; A61F2/95; A61F2/958; A61F2002/821; A61F2002/91508; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
28 words
A stent, comprising: undulations having peaks and being disposed in a helical pattern about the circumference
of the stent; and connecting rods connecting a plurality of the peaks.
Claim 2
Dependent Claim
28 words
A stent, comprising: undulations having peaks and being disposed in a helical pattern about the circumference
of the stent; and connecting rods connecting a plurality of the peaks.
Claim 3
Dependent Claim
13 words
The stent of claim 1, wherein a portion of the stent is radiopaque.
Claim 4
Dependent Claim
16 words
The stent of claim 1, wherein, the stent is formed from a wrapped band of material.
Claim 5
Dependent Claim
19 words
The stent of claim 1, wherein at least one radiopaque marker is disposed in a portion of
the stent.
Claim 6
Dependent Claim
19 words
The stent of claim 1, wherein at least one end of the stent is electro-plated with a
radiopaque material.
Claim 7
Dependent Claim
19 words
The stent of claim 1, wherein at least one end of the stent is dipped in a radiopaque
material.
Claim 8
Dependent Claim
12 words
The stent of claim 1, wherein the connecting rods are substantially Z-shaped.
Claim 9
Dependent Claim
15 words
The stent of claim 1, wherein the connecting rods are in a substantially S-shaped
geometry.
Claim 10
Dependent Claim
15 words
The stent of claim 1, wherein the connecting rods are in a substantially J-shaped
geometry.
Claim 11
Dependent Claim
39 words
The stent of claim 1, wherein the connecting rods include a plurality of curved portions
and a plurality of substantially straight portions between such curved portions, wherein
a first curved portion is oriented oppositely to a second curved portion.
Claim 12
Dependent Claim
17 words
The stent of claim 1, wherein the connecting rods are disposed between alternate peaks
of the undulations.
Claim 13
Dependent Claim
32 words
The stent of claim 1 and further including a longitudinal axis wherein at least one end of
the stent includes undulations that terminate in a plane substantially perpendicular to the
longitudinal axis.
Claim 14
Dependent Claim
19 words
The stent of claim 12, wherein the undulations of the at least one end include
progressively different length undulations.
Claim 15
Dependent Claim
55 words
A stent having a proximal end and a distal end, for supporting a vessel wall, comprising: a helical pattern of undulations defining the stent, wherein the vessel wall coverage of the
stent at the proximal or the distal end is independent of the orientation of the helical
pattern about a longitudinal axis of the stent.
Claim 16
Dependent Claim
55 words
A stent having a proximal end and a distal end, for supporting a vessel wall, comprising: a helical pattern of undulations defining the stent, wherein the vessel wall coverage of the
stent at the proximal or the distal end is independent of the orientation of the helical
pattern about a longitudinal axis of the stent.
Claim 17
Independent Claim
29 words
A method of making an expandable prosthesis, comprising: providing a tube; and removing a portion of the tube to form undulations disposed in a helical pattern about the
tube.
Claim 18
Independent Claim
29 words
A method of making an expandable prosthesis, comprising: providing a tube; and removing a portion of the tube to form undulations disposed in a helical pattern about the
tube.
Claim 19
Dependent Claim
27 words
A method of claim 15 and further comprising: leaving undulations that terminate in a plane substantially perpendicular to the
longitudinal axis at one end of said stent.
Claim 20
Dependent Claim
26 words
The method of claim 15, further comprising: removing a portion of the tube to provide connecting rods to connect at least one pair of
the undulations.
Claim 21
Dependent Claim
15 words
The method of claim 15, further comprising: providing a substantially square end of the stent.
Claim 22
Dependent Claim
21 words
The method of claim 18, wherein providing a substantially square end includes providing
an end module having progressively different length undulations.
Claim 23
Dependent Claim
17 words
The method of claim 17, wherein the connecting rods are disposed between alternate
peaks of the undulations.
Claim 24
Independent Claim
84 words
A method of treating vessels in the region of a bifurcation, comprising; providing a stent having an exterior wall including a helical pattern of undulations
having peaks and connecting rods that connect the peaks and that define a space between
the peaks and connecting rods; positioning the stent in a first location in the region of the bifurcation; expanding the space defined by the connecting rods; and inserting a dilating means through the space into a second location in the region of the
bifurcation,
Claim 25
Independent Claim
84 words
A method of treating vessels in the region of a bifurcation, comprising; providing a stent having an exterior wall including a helical pattern of undulations
having peaks and connecting rods that connect the peaks and that define a space between
the peaks and connecting rods; positioning the stent in a first location in the region of the bifurcation; expanding the space defined by the connecting rods; and inserting a dilating means through the space into a second location in the region of the
bifurcation,
Claim 26
Dependent Claim
15 words
The method of claim 21, wherein the connecting rods connect alternate peaks at the
undulations.
Claim 27
Dependent Claim
25 words
The method of claim 21, wherein expanding the space defined by the connecting rods
comprises: inserting a balloon in the space; and expanding the balloon.
Claim 28
Dependent Claim
43 words
The method of claim 21, wherein the connecting rods include a plurality of curved
portions and a plurality of substantially straight portions between such curved portions,
wherein a first curved portion is oriented oppositely to a second curved portion of each
connecting rod.
Claim 29
Dependent Claim
14 words
The method of claim 21, wherein the dilating means is a second, expandable stent.
Claim 30
Independent Claim
103 words
A method of treating vessels in the region of a bifurcation, comprising: providing a stent having a proximal region, a distal region and a central region and an
exterior wall including a helical pattern of undulations throughout the central region of
the stent, the wall having peaks and connecting rods that connect the peaks and that
define a space between peaks and connecting rods; positioning the stent in a first location in the region of the bifurcation; expanding the space defined by the connecting rods; and inserting a dilating means through the space into a second location in the region of the
bifurcation.
Claim 31
Independent Claim
103 words
A method of treating vessels in the region of a bifurcation, comprising: providing a stent having a proximal region, a distal region and a central region and an
exterior wall including a helical pattern of undulations throughout the central region of
the stent, the wall having peaks and connecting rods that connect the peaks and that
define a space between peaks and connecting rods; positioning the stent in a first location in the region of the bifurcation; expanding the space defined by the connecting rods; and inserting a dilating means through the space into a second location in the region of the
bifurcation.
Claim 32
Dependent Claim
14 words
A method of claim 25 wherein said dilating means is a second expandable stent.
Claim 33
Dependent Claim
30 words
A method of claim 25 wherein said stent has a series of connecting rods of varying length
disposed between an end module in said proximal region and said central region.
Claim 34
Dependent Claim
30 words
A method of claim 25 wherein said stent has a series of connecting rods of varying length
disposed between an end module in said distal region and said central region.
References Cited (Backward Citations)
US4886062A
Cited
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