Patent ID: 8216269
Filing Date: 2012-07-10
Classification: A61F

Abstract:
1. A device for capturing emboli during treatment of a stenotic lesion in a body vessel, the device comprising: a base including proximal and distal portions, the distal portion having a support portion having an expanded state and a collapsed state, the support portion configured to deploy in the body vessel when in the expanded state, the support portion including a plurality of struts extending from the distal portion of the base, each strut having a first end attached to the distal portion of the base and a second anchor end configured to engage the body vessel, each strut extending distally from the first end to the second anchor end; a filter portion disposed on the distal portion of the base, the filter portion including a lip distally attached to the struts and extending to a filter body, the filter portion being configured to engage the support portion when deployed to define an opening of the filter portion for capturing emboli, the struts extending distally and radially outwardly past the lip to the second anchor ends to engage the body vessel when the support portion is in the expanded state, the struts extending distally but not radially outwardly past the lip to the second anchor ends when the support portion is in the collapsed state, the filter portion extending from the lip to a filter end; and a collector comprising a tubular body portion through which the base is slideably disposed for delivery and retrieval of the device, the tubular body portion having a proximal end and a distal end, wherein the base is configured to deploy the support portion from the distal end of the tubular body portion when the base is moved distally relative to the tubular body portion, and wherein the support portion is configured to self-expand into the expanded state when the support portion is deployed from the distal end of the tubular body portion; wherein the distal portion of the base extends distally within the support portion and the filter portion through the filter end, the filter end being attached to the distal portion of the base, the distal portion of the base including an enclosed portion enclosed by the support portion and the filter portion between the first ends of the struts and the filter end, the enclosed portion of the base not including a radially expandable balloon.