초록 ▼

Perfusion catheter adapted to be positioned in at least a partially occluded blood vessel having a lesion or restriction therein comprising an elongate flexible plastic tubular member having a flow passage extending therethrough. The member has proximal and distal ends and a fitting carried by the p

Perfusion catheter adapted to be positioned in at least a partially occluded blood vessel having a lesion or restriction therein comprising an elongate flexible plastic tubular member having a flow passage extending therethrough. The member has proximal and distal ends and a fitting carried by the proximal end. The member has a plurality of holes spaced apart longitudinally from the distal end and permitting the flow of liquid from and into the flow passage through the holes when the catheter is positioned in the lesion or restriction so that at least some of the holes are on one side of the lesion or restriction and other holes are on the other side of the lesion or restriction.

대표청구항 ▼

In a method for maintaining blood flow across a stenosis in a blood vessel by the use of a perfusion catheter comprised of a flexible tubular member having a flow passage extending longitudinally of the same and having a plurality of spaced apart holes spaced longitudinally from the distal extremity

In a method for maintaining blood flow across a stenosis in a blood vessel by the use of a perfusion catheter comprised of a flexible tubular member having a flow passage extending longitudinally of the same and having a plurality of spaced apart holes spaced longitudinally from the distal extremity of the tubular member and in communication with the flow passage in the tubular member, the method comprising inserting the perfusion catheter into the blood vessel of the patient so that the perfusion catheter extends through the stenosis so that at least one of the holes in the perfusion catheter is disposed on one side of the stenosis and at least one of the holes is disposed on the other side of the stenosis and at least one of the holes is disposed on the other side of the stenosis so that blood can flow into and out of at least certain of the holes in the tubular member and through the flow passage in the tubular member and across the stenosis to thereby permit blood to continue to flow through the blood vessel and across the stenosis.