Embolic filter system
AssigneeW. L. Gore & Associates, Inc.
InventorsWilliam D. Montgomery, Edward E. Shaw
Life of this patent
Estimating the term…
Abstract
Various aspects of the present disclosure are directed toward an embolic filter system. The embolic filter system generally includes a filter and an elongated element. In some examples, the elongate element extends to a position distal to a proximal end of the filter and operates to protect against medical devices entangling with the filter. In some examples, the elongate element is soft and compliant and operates with a hemostatic seal to provide for a hemostatic seal within a lumen of the elongate element while maintaining the lumen as a working lumen through which medical devices can be passed.
Claims18
An embolic filter comprising:
- an elongate element having a proximal end and a distal end, the elongate element including a first structural element and a first covering material, the elongate element having sufficient structural integrity to support being advanced within a delivery sheath;
- a filter portion positioned at the distal end of the elongate element, the filter portion including a second structural element and a second covering material, wherein a portion of the second covering material includes a plurality of perforations configured to filter embolic debris from blood flowing into the filter portion;
- and
- a constraining fiber routed about an interior or an exterior of the second structural element of the filter portion and configured to control expansion or collapse of the filter portion.
An embolic filter comprising:
- a filter assembly having two ends and an elongated intermediate portion;
- a structural element;
- and
- a constraining fiber;
- wherein at a first end the filter assembly comprises an expandable filter element having an expandable frame and a filter material, the constraining fiber is routed about an interior or an exterior of the expandable frame of the expandable filter element and configured to control expansion or collapse of the expandable filter element, and the structural element is configured to advance the first end of the filter assembly from an end of the catheter for deployment at the treatment site.
An endoprosthesis delivery device comprising:
- an expandable filter element mounted on a catheter shaft, having a capture area within the expandable filter element when the expandable filter element is deployed;
- an elongated conduit configured to extend through and beyond the expandable filter element when the expandable filter element is deployed at a treatment site, the conduit configured to allow for delivery of an endoprosthesis beyond the expandable filter element;
- and
- a constraining fiber routed about an interior or an exterior of the expandable filter element and configured to control expansion or collapse of the expandable filter element:
- wherein the elongated conduit includes at least one aperture through a side wall providing fluid communication between the capture area and an interior of the elongated conduit, wherein the at least one aperture is configured to facilitate a transfer of embolic debris captured within the filter to the elongated conduit.
Dependencies are inferred from the claim text.