EP0882428A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Intravascular occlusion device
Assignee: Medtronic Vascular Inc
•
Filing: 1998-05-27
•
Granted: —
•
Expires: 2018-05-27
Abstract
Abstract Occlusion of vessels, particularly small diameter vessels, is effected with an intravascular occlusion device comprising an anchor (10, 10', 30, 60) and an occlusive material or materials (16, 18, 44). Embodiments of the anchor include self-expanding (10, 60) or mechanically expandable (10', 30) frames comprising a plurality of wire-like members (12, 12')or a generally cylindrical, tubular-shaped member (32). Examples of the occlusive materials include filamentary strands or fiber bundles (16), and/or a non-compliant or inelastic closure member (18, 44). The strands or fiber bundles (16) are secured to the anchor by tying or adhesive. The non-compliant occlusion member (18, 44) is connected to the anchor by tying, molding, coating, adhesive, induction heating, welding or heat shrinking. The fiber bundles (16) are preferably made from material which induces a thrombogenic response. Both the fiber bundles (16) and the inelastic occlusion element (18, 44) may be coated or impregnated with thrombogenic materials or agents. Additionally, the surface of the anchor can be treated to increase the thrombogenic response of the occlusion device.
Inventors
- 👤 Michael S. Williams
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 12:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/12168; A61B17/12177; A61B17/12099; A61B17/12109; A61B17/12172
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
21 words
A device for occluding fluid flow through a
vessel, comprising: an anchor; and a substantially non-complaint membrane affixed to
said anchor.
Claim 2
Dependent Claim
18 words
A device as claimed in claim 1, wherein the
membrane is coated or loaded with a pharmaceutical
agent.
Claim 3
Dependent Claim
26 words
A device as claimed in claim 1, wherein the
membrane comprises a material selected form the group
consisting essentially of polyethylene, polyethylene
terephthalate, polyarylenesulfide and polyamides.
Claim 4
Dependent Claim
18 words
A device as claimed in claim 1, further
comprising at least one filamentary strand affixed to
said anchor.
Claim 5
Dependent Claim
38 words
A device as claimed in claim 4, wherein the at
least one filamentary strand comprises a material
selected from the group consisting essentially of
silk, cotton, wool, cellulose, nylon, polyethylene,
polyethylene terephthalate, polypropylene, polyester,
polyurethane, collagen and metals.
Claim 6
Dependent Claim
22 words
A device as claimed in claim 4, wherein the at
least one filamentary strand is coated with a material
which enhances thrombosis.
Claim 7
Dependent Claim
22 words
A device as claimed in claim 4, wherein the at
lest one filamentary strand is impregnated with a
material which enhances thrombosis.
Claim 8
Dependent Claim
29 words
A device as claimed in claim 6 or claim 7,
wherein the thrombosis enhancing material is selected
from the group consisting essentially of collagens,
peptides, polymers, thrombins and proteins.
Claim 9
Dependent Claim
22 words
A device as claimed in claim 4, wherein the at
least one filamentary strand is coated or loaded with
a pharmaceutical agent.
Claim 10
Dependent Claim
31 words
A device as claimed in claim 1, wherein the
anchor comprises a material selected from the group
consisting essentially of stainless steel, nickel,
titanium, nickel-titanium, Nitinol, tantalum, cobalt-chromium,
copper and gold.
Claim 11
Dependent Claim
15 words
A device as claimed in claim 1, wherein the
anchor is treated to induce thrombosis.
Claim 12
Dependent Claim
52 words
A device as claimed in claim 1, wherein the
anchor includes a frame comprising a plurality of
wire-like members, each member having a first and
second end. And wherein the plurality of wire-like
members are crimped together with a radiopaque marker
band intermediate of the first and second ends of said
members.
Claim 13
Dependent Claim
80 words
A device as claimed in claim 1, wherein the
anchor further comprises a plurality of wire-like
members, each member having a first and second end,
the wire-like members further comprising: a first configuration and a second, deployed
configuration; a first radiopaque marker band securing the first
ends of the wire-like members together; a second radiopaque marker band securing the
seconds ends of the wire-like members together; and means for locking said plurality of wire-like
members in the second, deployed configuration.
Claim 14
Dependent Claim
36 words
A device as claimed in claim 1, wherein the
anchor further comprises: plurality of substantially straight segments
connected at axial bends; and at least one filamentary strand connected to at
least one of said axial bends.
Claim 15
Dependent Claim
37 words
A device as claimed in claim 1, wherein the
anchor further comprises; a tubular, generally cylindrical member having
first and second ends, and a portion of the membrane is folded over one end
of the tubular member.
Claim 16
Dependent Claim
33 words
A device as claimed in claim 15, further
comprising: at least one filamentary strand affixed to the
device by capture of at least one end thereof within
said folded portion of the membrane.
Claim 17
Dependent Claim
22 words
A device as claimed in claim 15, further
comprising: at least one radiopaque marker placed within the
folded portion of the membrane.
Claim 18
Dependent Claim
37 words
A device as claimed in claim 1, wherein the
anchor further comprises: a plurality of substantially straight segments
connected at axial bends; and at least one filamentary strand connected to at
least one of said axial bends.
Claim 19
Dependent Claim
116 words
A device as claimed in claim 1, wherein the
anchor comprises: a generally cylindrical, tubular member made of a
shape memory material and having a first diameter and
a transition temperature at or substantially near body
temperature: said tubular member having a second, deformed
diameter which permits intraluminal delivery of the
tubular member to the vessel to be occluded; and means for restraining said tubular member in the
second, deformed diameter until the device is
positioned at a predetermined location in the vessel,
whereby upon removal of the restraining means the
tubular member transition to the first diameter,
engaging the inner wall of the vessel and maintaining
said device at said predetermined location in said
vessel.
Claim 20
Independent Claim
22 words
A device for occluding fluid flow through a
vessel, comprising: an anchor; and at least one filamentary strand affixed to said
anchor.
Claim 21
Dependent Claim
38 words
A device as claimed in claim 20, wherein the at
least one filamentary strand comprises a material
selected form the group consisting essentially of
silk, cotton, wool, cellulose, nylon, polyethylene,
polyethylene terephthalate, polypropylene, polyester,
polyurethane, collagen and metals.
Claim 22
Dependent Claim
22 words
A device as claimed in claim 20, wherein the at
least one filamentary strand is coated with a material
which enhances thrombosis.
Claim 23
Dependent Claim
22 words
A device as claimed in claim 20, wherein the at
least one filamentary strand is impregnated with a
material which enhances thrombosis.
Claim 24
Dependent Claim
27 words
A device as claimed in claim 22 or claim 23,
wherein the thrombosis enhancing material is selected
from he group consisting essentially of collagens,
peptides, polymers, proteins.
Claim 25
Dependent Claim
22 words
A device as claimed in claim 20, wherein the at
least one filamentary strand is coated or loaded with
a pharmaceutical agent.
Claim 26
Dependent Claim
15 words
A device as claimed in claim 20, wherein the
anchor is treated to induce thrombosis.
Claim 27
Dependent Claim
27 words
A device as claimed in claim 20, wherein the
anchor includes a frame comprising a plurality of
wire-like members, each member having a first and
second end.
Claim 28
Dependent Claim
31 words
A device as claimed in claim 27, wherein the
plurality of wire-like members are crimped together
with a radiopaque marker band intermediate of the
first and second ends of said members.
Claim 29
Dependent Claim
31 words
A device as claimed in claim 27, wherein the
frame comprises a material selected from the group
consisting essentially of stainless steel, nickel,
titanium, nickel-titanium, Nitinol, tantalum, cobalt-chromium,
copper and gold.
Claim 30
Dependent Claim
56 words
A device as claimed in claim 27, wherein the
wire-like members have a first configuration and a
second, deployed configuration whereby, in said second
configuration, those portions of the wire-like members
intermediate the first and second ends thereof, engage
the inner wall of the vessel and maintain said anchor
at a predetermined location within said vessel.
Claim 31
Dependent Claim
51 words
A device as claimed in claim 30, further
comprising: a first radiopaque marker band securing the first
ends of the wire-like members together; a second rediopaque marker band securing the
second ends of the wire-like members together; and means for locking said plurality of wire-like
members in the second, deployed configuration.
Claim 32
Dependent Claim
41 words
A device as claimed in claim 20, wherein the
anchor further comprises: a plurality of substantially straight segments
connected at axial bends; and said at least one filamentary strand being
connected to said tubular member at one of said axial
bends.
Claim 33
Dependent Claim
29 words
A device as claimed in claim 20, wherein the
anchor comprises a material selected form the group
consisting essentially of stainless steel, nickel,
titanium, tantalum, cobalt-chromium, copper and gold.
Claim 34
Dependent Claim
116 words
A device as claimed in claim 20, wherein the
anchor comprises: a generally cylindrical, tubular member made of a
shape memory material and having a first diameter and
a transition temperature at or substantially near body
temperature; said tubular member having a second, deformed
diameter which permits intraluminal delivery of the
tubular member to the vessel to be occluded; and means for restraining said tubular member in the
second, deformed diameter until the device is
positioned at a predetermined location in the vessel,
whereby upon removal of the restraining means the
tubular member transitions to the first diameter,
engaging the inner wall of the vessel and maintaining
said device at said predetermined location in said
vessel.
Claim 35
Dependent Claim
42 words
A device as claimed in claim 34, wherein the
tubular member further comprises: a plurality of substantially straight segments
connected at axial bends; and said at least one filamentary strand is connected
to said tubular member at one of said axial bends.
Claim 36
Dependent Claim
18 words
A device as claimed in claim 34, wherein the
shape memory material is nickel-titanium or an alloy
thereof.
Claim 37
Dependent Claim
28 words
An intravascular occlusion device comprising; means for thrombogenically occluding flow through
a vessel; and means for maintaining said flow occluding means
at a predetermined location within said vessel.
Claim 38
Dependent Claim
20 words
The intravascular occlusion device according to
claim 37, further comprising: means for inducing a thrombogenic response form
said maintaining means.
Claim 39
Dependent Claim
20 words
The intravascular occlusion device according to
claim 37, further comprising: means for increasing the thrombogenicity of said
flow occluding means.
Claim 40
Dependent Claim
21 words
The intravascular occlusion device according to
claim 37, further comprising: means for securing said flow occluding means to
said maintaining means.
Claim 41
Dependent Claim
32 words
The intra vascular occlusion device according to
claim 37, further comprising: means for delivering the maintaining means and
the flow occluding means to a predetermined location
in a vessel to be occluded.
Claim 42
Dependent Claim
20 words
The intra vascular occlusion device according to
claim 37, further comprising: means for delivering a pharmaceutical agent to
the vessel.
Claim 43
Dependent Claim
33 words
An intra vascular occlusion device comprising: a substantially non-compliant means for
mechanically occluding flow through a vessel; and means for maintaining said mechanical flow
occluding means at a predetermined location within
said vessel.
References Cited (Backward Citations)
No citation records indexed.
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