Methods and apparatus for distal protection during a medical procedure
First Claim
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1. Apparatus for distal protection during a medical procedure comprising:
- an elongate member having a distal region; and
a vascular filter coupled to the distal region and having a resiliently expandable foam body comprising a substantially annular wall portion having a distal end, an end wall coupled to the distal end, and a plurality of substantially planar partitions extending radially inward from the annular wall portion to the elongate member to define recesses adapted to capture emboli.
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Abstract
Apparatus and methods for providing distal protection during a medical procedure comprising a vascular filter having a self-expanding, porous foam body that conformably seals against a vessel wall and captures emboli within one or more recesses. The filter is coupled to a distal region of an elongated member, such as a guide wire. Delivery systems for use with filters of the present invention and methods of using the apparatus of the present invention also are provided.
327 Citations
27 Claims
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1. Apparatus for distal protection during a medical procedure comprising:
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an elongate member having a distal region; and
a vascular filter coupled to the distal region and having a resiliently expandable foam body comprising a substantially annular wall portion having a distal end, an end wall coupled to the distal end, and a plurality of substantially planar partitions extending radially inward from the annular wall portion to the elongate member to define recesses adapted to capture emboli. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for distal protection during a medical procedure, the method comprising:
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providing apparatus comprising an elongate member having a distal region and a resiliently expandable foam body having a substantially annular wall portion with a distal end, an end wall coupled to the distal end, and a plurality of substantially planar partitions extending radially inward from the annular wall portion to the elongate member to define recesses adapted for capturing emboli;
disposing the apparatus in a contracted delivery configuration;
advancing the apparatus to a target site within a patient'"'"'s vessel; and
resiliently expanding the apparatus to an expanded deployed configuration in which the annular wall portion seals against an internal wall of the patient'"'"'s vessel. - View Dependent Claims (22, 23, 24, 25, 26, 27)
providing an interventional device for performing a medical procedure, the interventional device having a guide wire lumen;
percutaneously and transluminally advancing the interventional device along the elongated member to a position within the patient'"'"'s vessel proximal of the apparatus;
performing the medical procedure, the apparatus capturing emboli released during the procedure within the recesses of the vascular filter;
collapsing the apparatus within the guide wire lumen of the interventional device for retrieval; and
removing the interventional device and apparatus from the patient'"'"'s vessel.
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27. The method of claim 26, wherein the interventional device comprises a balloon catheter.
Specification