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US 6,450,987 B1Granted
Collapsible guidewire lumen
AssigneeInnercool Therapies, Inc.
InventorHans W. Kramer
Life of this patent
Estimating the term…
Abstract
A wire guided fluid catheter assembly having a collapsible guidewire lumen. Pressurization of a fluid lumen in the catheter assembly collapses the guidewire lumen, thereby increasing the fluid flow capacity of the catheter assembly.
Claims14
A catheter assembly comprising:
- a flexible elongated catheter body;
- a longitudinal fluid supply lumen encompassed within said catheter body;
- and
- a longitudinal guidewire lumen formed within said catheter body, said guidewire lumen being separated from said fluid supply lumen by a guidewire conduit wall;
- wherein said guidewire conduit wall is adapted to move toward said guidewire lumen, to collapse said guidewire lumen, upon pressurization of said fluid supply lumen.
2 more elements
A method for supplying a fluid through a vascular system of a patient, said method comprising:
- providing a catheter having a longitudinal fluid supply lumen and longitudinal guidewire lumen therein;
- introducing said catheter into a vascular system of a patient over a guidewire, said guidewire passing through said guidewire lumen of said catheter;
- withdrawing said guidewire from said guidewire lumen;
- and
- pressurizing said fluid supply lumen, thereby moving a guidewire conduit wall into said guidewire lumen, to collapse said guidewire lumen.
2 more elements
Dependencies are inferred from the claim text.