EP1226795A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Filter device
Assignee: Ev3 Inc
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Filing: 2002-01-25
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Granted: —
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Expires: 2022-01-25
Abstract
Abstract The present invention relates to a protection device for use in a lumen of a patients body. The protection device has a fiber matrix electrospun about an expandable and collapsible wire frame. In the collapsed configuration the protection device may be advanced within a lumen. In the expanded configuration, the protection device is able to engage the walls of the lumen wherein, the fiber matrix forms a plurality of pores for preventing the passage of particulate material and allow fluid to flow through.
Inventors
- 👤 Jennifer L. Pavlovic
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 14:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/0108; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0063; A61F2230/0067; A61F2230/0069; A61F2230/0073; A61F2230/0076; A61F2230/008; A61F2230/0093
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
52 words
A medical device for filtering a fluid in a lumen of a patient's body, comprising: a wire frame comprising a plurality of wires oriented to define a perimeter; and a fiber matrix including a multiciplity of fibers extending across an open space defined
by the perimeter to define a multiciplity of pores.
Claim 2
Dependent Claim
21 words
The device of claim 1, wherein the fiber matrix and the wire frame together form
boundaries defining a multiplicity of pores.
Claim 3
Dependent Claim
17 words
The device of Claim 1, wherein the filter is collapsible prior to deployment from a
constraining wall.
Claim 4
Dependent Claim
27 words
The device of claim 3, further comprising a retainer to hold the wire frame in a collapsed
configuration for insertion into the lumen to be deployed therein.
Claim 5
Dependent Claim
38 words
The device of claim 4, wherein the collapsible frame is carried by a guidewire, and
wherein the retainer comprises a catheter having a lumen within which the flexible frame, in
its collapsed configuration, is received prior to deployment.
Claim 6
Independent Claim
42 words
The device of any of the preceding claims, wherein the plurality of wires intersect to
define perimeters of a multiplicity of open spaces, each open space having a matrix including
a multiplicity of fibers extending thereacross to define a multiplicity of pores.
Claim 7
Independent Claim
16 words
The device of any of the preceding claims, wherein the collapsible filter is a flexible
filter.
Claim 8
Independent Claim
17 words
The device of any of the preceding claims, wherein the fibers are formed by an electrospinning
process.
Claim 9
Dependent Claim
98 words
The device of claim 1, wherein the fiber matrix is secured to the wire frame, the fiber
matrix having fibers forming a boundary about each of a multiplicity of pores, the fiber matrix
and the wire frame together forming a filter carried by a guidewire with the filter being collapsible
prior to deployment, the filter being expandable to extend outward from the
guidewire such that the filter engages a wall defining the lumen, the wire frame and the fiber
matrix being constructed and arranged to prevent passage of particulate matter while allowing
passage of fluid through the pores.
Claim 10
Dependent Claim
123 words
A medical device for use in a lumen of a human body for preventing passage of particulate
matter and allowing passage of a fluid, such as blood, comprising: a guidewire having an expandable and collapsible filter attached at a distal end,
wherein the filter has a collapsed configuration wherein the filter is able to be advanced within
the lumen; and an expanded configuration wherein the filter is expanded outward from the
guidewire to engage a wall of the lumen, the filter having fibers defining a plurality of pores, the pores allowing passage of
blood and preventing passage of particulate matter therethrough, the filter comprising a wire
frame having a plurality of wires on which the fibers are spun to form a fiber matrix.
References Cited (Backward Citations)
US6129697A
Cited
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