Clot retrieval catheter
AssigneeCook Medical Technologies LLC
InventorsPalle Munk Hansen, Tue Thuren Bödewadt
Life of this patent
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Abstract
A clot retrieval device, for example to be used in a thrombectomy, is provided including a catheter, an elongated member, and a knitted basket with a proximal end coupled to the catheter and a distal end coupled to the elongated member. The elongated member is movable between an expanded position and a compressed position relative to the catheter and is configured so that the knitted basket expands radially and compresses as the elongated member is moved to the compressed position. The knitted basket is comprised of a plurality of wires coupled together by a plurality of windings. Each winding comprises one of the plurality of the wires twisted about another of the plurality of wires.
Claims20
A clot retrieval device, comprising:
- an outer catheter comprising a distal end and a lumen through the distal end;
- an elongated member comprising an outer surface and a distal portion, wherein the elongated member is configured to pass through the at least one lumen of the outer catheter, and wherein the elongated member is movable relative to the outer catheter between a longitudinally extended position and a longitudinally compressed position;
- and
- a knitted basket comprising a proximal end coupled to the distal end of the outer catheter, and a distal end coupled to the distal portion of the elongated member, wherein when the elongated member is in the extended position, the knitted basket is adjacent to the outer surface of the elongated member;
- and wherein when the elongated member is moved to the compressed position, at least a portion of the knitted basket expands radially from the outer surface of the elongated member;
- wherein the knitted basket comprises a plurality of wires, each of the plurality of wires fixed to another of the plurality of wires at a winding, wherein the winding comprises one of the plurality of wires twisted about another of the plurality of wires.
A clot retrieval device, comprising:
- a catheter comprising a proximal end, a distal end, and a lumen through the distal end;
- an elongated member comprising an outer surface, a lumen, a proximal end, and a distal portion, wherein the elongated member is configured to pass through the lumen of the catheter, and wherein the elongated member is movable relative to the catheter between an extended position and a compressed position;
- an expandable knitted basket comprising a proximal end coupled to the distal end of the catheter, a distal end coupled to distal portion of the elongated member, a plurality of wires, and a plurality of cells formed by a plurality of windings between pairs of the plurality of wires, wherein each of the windings comprise one of the plurality of wires twisted about another of the plurality of wires, and wherein each of the plurality of wires is fixed to another of the plurality of wires at least one of the plurality of windings.
Dependencies are inferred from the claim text.