Embolic protection device having reduced profile
First Claim
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.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for capturing emboli during treatment of a stenotic lesion in a body vessel is disclosed. The device comprises a base having expanded and collapsed states, and proximal and distal portions. The distal portion has a support portion configured to deploy in the body vessel when the base is in the expanded state. The device further comprises a filter portion disposed on the distal portion of the base. The filter portion includes a lip extending to a filter body to a filter end. The filter portion is configured to engage the support portion when deployed to define an opening of the filter portion for capturing emboli. The device further comprises a collector through which the base is slideably disposed for delivery and retrieval of the device.
872 Citations
10 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An embolic protection assembly for capturing emboli during treatment of a stenotic lesion in a body vessel, the assembly comprising:
-
a balloon catheter having a tubular body portion and an expandable balloon attached to and in fluid communication with the tubular body portion for angioplasty at the stenotic lesion, the expandable balloon having distal and proximal portions; and a device for capturing emboli coaxially disposed within the balloon catheter during treatment of the stenotic lesion in the 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, 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 filter portion extending from the lip to a filter end, wherein each strut extends from the lip to the second anchor end, the struts being configured to extend 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 being configured to extend distally but not radially outwardly past the lip to the second anchor ends when the support portion is in the collapsed state; and a collector tube through which the base is slideably disposed for delivery and retrieval of the device, the collector tube having a proximal end and a distal end, wherein the base is configured to deploy the support portion from the distal end of the collector tube when the base is moved distally relative to the collector tube, 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 collector tube; 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. - View Dependent Claims (10)
-
Specification