Catheter system for emboli containment
First Claim
1. A vessel filtering system, comprising:
- a guidewire having a proximal end and a distal end;
an expandable filter mounted at the distal end of the guidewire;
a guiding catheter having a proximal end, a distal end, and a lumen therebetween, the lumen adapted to receive the guidewire which passes through a distal port on the guiding catheter; and
an occlusion balloon disposed about the distal end of the guiding catheter.
1 Assignment
0 Petitions
Accused Products
Abstract
A multi-catheter emboli containment system is disclosed which is adapted to provide at least one pair of optimized paths for irrigation and aspiration fluid flow. Through careful design of the cross-sectional area of these paths, the present system is able to be compactly utilized in even the smaller size blood vessels. The catheter system itself is provided with occlusive devices to form an emboli containment chamber in which irrigation and aspiration occur. The catheter system of the present invention provides an improved emboli containment and removal system which can be utilized in a wide range of vessel diameters. The system is easy to use and can quickly and efficiently evacuate the containment chamber.
198 Citations
20 Claims
-
1. A vessel filtering system, comprising:
-
a guidewire having a proximal end and a distal end;
an expandable filter mounted at the distal end of the guidewire;
a guiding catheter having a proximal end, a distal end, and a lumen therebetween, the lumen adapted to receive the guidewire which passes through a distal port on the guiding catheter; and
an occlusion balloon disposed about the distal end of the guiding catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20)
-
-
16. A method for flushing embolic debris into a filter, comprising the steps of:
-
providing a guidewire having an expandable filter at a distal end;
providing a guiding catheter having an occlusion balloon at a distal end and a lumen extending to a port at the distal end;
inserting the guidewire into a vessel;
advancing the expandable filter beyond a region of interest;
expanding the filter;
inserting the guiding catheter over the guidewire and positioning the occlusion balloon proximal the region of interest;
expanding the occlusion balloon to occlude the vessel; and
infusing fluid through the lumen of the guiding catheter to flush atheromatous material into the expandable filter.
-
Specification