Distal protection device with improved wall apposition
First Claim
1. A vascular filtering device comprising:
- a supporting collar having a concentric though hole adapted to slidably engage with a guide wire;
a primary supporting strut having a proximal end and a distal end wherein the distal end of said supporting strut is operatively attached to said supporting collar; and
a filtering flange having at least one through hole attached to said supporting strut between the proximal and the distal ends of said supporting strut.
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Abstract
In accordance with the present invention, a distal protection and embolic material retrieval device with improved apposition to both large and small vessel walls of varying geometries for enhancing the filtering of embolic material during intravascular procedures while allowing for the passage of blood is provided. The device includes a filter basket designed to maximize apposition of the filtering portion to that of the vessel wall and may include struts which provide circumferential support to the filtering membrane and thereby minimizing or eliminating in-folding of the filter basket. Thin film materials may also be utilized for the filtering membrane of the filter basket. In addition one can incorporate biological and/or pharmaceutical agents in combination with the present invention.
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Citations
28 Claims
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1. A vascular filtering device comprising:
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a supporting collar having a concentric though hole adapted to slidably engage with a guide wire;
a primary supporting strut having a proximal end and a distal end wherein the distal end of said supporting strut is operatively attached to said supporting collar; and
a filtering flange having at least one through hole attached to said supporting strut between the proximal and the distal ends of said supporting strut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification