EP1181900A2
Expired / Lapsed
EP
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Distal protective device
Assignee: Covidien LP
•
Filing: 2001-07-25
•
Granted: —
•
Expires: 2021-07-25
Abstract
Abstract A distal protection device provided with a filter basket having a self-expanding radial loop designed to position the filter basket within human vasculature and to hold the filter basket open during deployment. <IMAGE>
Inventors
- 👤 John C. Oslund
- 👤 Chad J. Volk
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 17:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
71 words
A distal protection device disposable within a vessel of
a body, comprising: a filter basket positionable at a desired axial location
within the vessel, said filter basket having a
closed distal end and an open proximal end; and a self-expanding radial member associated with said
filter basket in proximity to the proximal end
thereof, said member being adapted to maintain the
proximal end of said filter basket in an opened
configuration.
Claim 2
Dependent Claim
29 words
The distal protection device of Claim 1, further
comprising a guidewire upon which said filter basket is
mounted, wherein at least one end of said filter basket is
free-floating.
Claim 3
Dependent Claim
21 words
The distal protection device of Claim 2, wherein an
cpposite end of said filter basket is fixedly attached to said
guidewire.
Claim 4
Dependent Claim
26 words
The distal protection device of Claim 2, wherein said
filter basket is in the shape of a windsock, and said
guidewire extends axially along said windsock.
Claim 5
Dependent Claim
19 words
The distal protection device of Claim 2, wherein said
filter basket includes a tube through which said guidewire
extends.
Claim 6
Dependent Claim
23 words
The distal protection device of Claim 2, wherein said
radial member comprises a loop, and wherein said loop is
generally circular in shape.
Claim 7
Dependent Claim
26 words
The distal protection device of Claim 3, wherein said
filter basket is in the shape of a windsock, and said
guidewire extends axially along said windsock.
Claim 8
Dependent Claim
19 words
The distal protection device of Claim 3, wherein said
filter basket includes a tube through which said guidewire
extends.
Claim 9
Dependent Claim
23 words
The distal protection device of Claim 3, wherein said
radial member comprises a loop, and wherein said loop is
generally circular in shape.
Claim 10
Dependent Claim
17 words
The distal protection device of Claim 1, wherein said
radial member is formed in a "C" configuration.
Claim 11
Dependent Claim
17 words
The distal protection device of Claim 1, wherein said
radial member is formed in a "J" configuration.
Claim 12
Dependent Claim
17 words
The distal protection device of Claim 1, wherein said
radial member is formed in a spiral configuration.
Claim 13
Dependent Claim
16 words
The distal protection device of Claim 6, wherein said
radial loop is made of nitinol wire.
Claim 14
Dependent Claim
12 words
The distal protection device of Claim 6, wherein said
loop is radiopaque.
Claim 15
Dependent Claim
16 words
The distal protection device of Claim 6, wherein said
loop is covered by a radiopaque material.
Claim 16
Dependent Claim
23 words
The distal protection device of Claim 6, wherein said
loop, in its expanded state, generally defines a plane
substantially perpendicular to said guidewire.
Claim 17
Dependent Claim
29 words
The distal protection device of Claim 6, wherein said
loop, in its expanded state, is deployed at an angle of
between 45 degrees and 90 degrees to said guidewire.
Claim 18
Dependent Claim
27 words
The distal protection device of Claim 6, wherein said
filter basket and said loop are adapted to be collapsed to
fit into a small diameter delivery catheter.
Claim 19
Independent Claim
72 words
A method for capturing debris produced during a medical
procedure in human vasculature, comprising the steps of: inserting a catheter containing a distal protection
device in a collapsed configuration into human
vasculature; deploying the distal protection device on a distal side
of the vasculature affected by a medical
procedure; maintaining the distal protection device generally
concentrically within the vasculature; and capturing debris produced by the medical procedure
within the distal protection device.
Claim 20
Dependent Claim
113 words
Apparatus to facilitate proper positioning of a medical
instrument within a generally tubular vessel of the body along
a guidewire fed into the vessel, comprising: an element maintaining the medical instrument deployed
laterally on a defined side of the guidewire; and a collapsible, quasi-rigid spacer carried by the
guidewire proximate a desired axial end of the
medical instrument, and maintained, when expanded,
deployed laterally on the defined side of the
guidewire, said spacer having a dimension on the
defined side of the guidewire sufficient to engage
an inner surface of the vessel at a circumferential
location and urge the guidewire against the inner
surface of the vessel at a generally diametrically
opposite location.
Claim 21
Dependent Claim
47 words
Apparatus in accordance with Claim 20 wherein said spacer
has a proximal portion at the guidewire and a distal portion
for engagement of the inner surface of the vessel, and wherein
said distal portion is configured so as not to injure the
inner surface of the vessel.
Claim 22
Dependent Claim
29 words
Apparatus in accordance with Claim 21 wherein said spacer
comprises a wire form, and wherein said distal portion of said
spacer comprises an arcuate portion of said wire form.
Claim 23
Dependent Claim
14 words
Apparatus in accordance with Claim 22 wherein said wire
form defines a closed loop.
Claim 24
Dependent Claim
22 words
Apparatus in accordance with Claim 23 wherein said closed
loop generally defines an angle of at least 45° relative to
the guidewire.
Claim 25
Dependent Claim
15 words
Apparatus in accordance with Claim 22 wherein said wire
form defines a generally C shape.
Claim 26
Dependent Claim
15 words
Apparatus in accordance with Claim 22 wherein said wire
form defines a generally J shape.
Claim 27
Dependent Claim
11 words
Apparatus in accordance with Claim 21 wherein said spacer
is radiopaque.
Claim 28
Dependent Claim
103 words
Apparatus to facilitate proper positioning of a medical
instrument within a generally tubular vessel of the body along
a guidewire fed into the vessel, comprising: an element mounting the medical instrument to the
guidewire at a defined axial position therealong;
and a collapsible, quasi-rigid spacer carried by the
element, wherein said instrument is generally
axially aligned with said spacer, said spacer
having a dimension on one side of the guidewire
sufficient so that it engages an inner surface of
the vessel at a circumferential location thereon
and urges the guidewire against the inner surface
of the vessel at a generally diametrically opposite
location.
Claim 29
Dependent Claim
56 words
Apparatus to facilitate proper positioning of a woven
distal protection device within a generally tubular vessel of
the body along a guidewire fed into the vessel, comprising: an element mounting the distal protection device at a
desired axial location along the guidewire; and a collapsible, quasi-rigid spacer interwoven into a
mouth of the distal protection device.
References Cited (Backward Citations)
No citation records indexed.
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