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US 6,669,662 B1Granted
Perfusion catheter
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorWilliam E. Webler
Life of this patent
Estimating the term…
Abstract
A perfusion catheter with a shaft having a lumen and a plurality of ports through the shaft. A rotatable core with a core groove is disposed within the lumen. The plurality of ports can be exposed by retraction of the core. The core can be rotated within the shaft.
Claims43
A perfusion catheter comprising:
- a longitudinally extending shaft having a shaft lumen there through;
- a plurality of ports extending through said longitudinally extending shaft;
- a rotatable core disposed within said shaft lumen, said rotatable core including a spring;
- and
- a core groove about said rotatable core, said core groove being between turns of said spring.
2 more elements
A perfusion catheter comprising:
- a longitudinally extending shaft having a shaft lumen there through;
- a plurality of ports extending through said longitudinally extending shaft;
- a rotatable core disposed within said shaft lumen;
- a core groove about said rotatable core;
- a floppy tip disposed at a distal portion of said rotatable core;
- and
- a floppy tip coil disposed within said floppy tip.
4 more elements
A method of maintaining circulation across a narrowed vessel wall during catheterization thereat, said method comprising:
- guiding a shaft of a catheter across said narrowed vessel wall, said shaft having a plurality of ports there through at a distal portion of said shaft and a retractable core disposed within a lumen of said shaft;
- and
- retracting said core proximally in order to expose said plurality of ports to allow a flow of blood into a shaft lumen of said shaft,
- wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and
- wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
2 more elements
A method of maintaining circulation across narrowed vessel portion during catheterization thereat, said method comprising:
- guiding a shaft of a catheter across said narrowed vessel portion, said shaft having a plurality of ports there through;
- and
- rotating a core within said shaft, said core having a core groove for advancing fluids within a lumen of said shafts,
- wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and
- wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
2 more elements
A perfusion catheter comprising:
- a longitudinally extending shaft having a shaft lumen there through;
- a plurality of ports extending through said longitudinally extending shaft;
- and
- a core disposed within said shaft lumen, said core being at least one of rotatable and retractable,
- wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and
- wherein said floppy tip comprises a floppy tip coil disposed within said floppy tip.
3 more elements
Dependencies are inferred from the claim text.