Embolic Protection Device

摘要

The present invention includes an embolic protection device comprising a catheter having a self-expanding embolic filter that is disposed around the catheter proximal to a distal portion, wherein the embolic filter comprises a frame that has at least two lobes, and the frame defines an opening of the embolic filter that faces the distal end of the catheter; and a deployment mechanism that is disposed around at least a portion of the catheter, wherein the deployment mechanism is longitudinally movable with respect to the catheter, the deployment mechanism is configured to contain the embolic filter in a collapsed configuration, and the embolic filter is configured to self-expand upon the longitudinal retraction of the deployment mechanism.

主权项

1. An embolic protection device comprising:
a catheter having a proximal end, a distal end, and a lumen extending from the proximal end of the catheter to the distal end of the catheter, wherein the lumen is configured to house a guidewire, and a distal portion of the catheter assumes a generally arcuate shape being at least a semi-circle when the guidewire is at least partially longitudinally retracted; a longitudinally-extending radiopaque marker located on at least a portion of the distal portion of the catheter that assumes the generally arcuate shape being at least a semi-circle; a self-expanding embolic filter that is disposed around the catheter proximal to the distal portion, wherein the embolic filter comprises a frame that has at least two lobes, and the frame defines an opening of the embolic filter that faces the distal end of the catheter; and a deployment mechanism that is disposed around at least a portion of the catheter, wherein the deployment mechanism is longitudinally movable with respect to the catheter, the deployment mechanism is configured to contain the embolic filter in a collapsed configuration, and the embolic filter is configured to self-expand upon the longitudinal retraction of the deployment mechanism.