Microcatheter with distal tip portion and proximal solution lumen
AssigneeThermopeutiX, Inc.
InventorsRONALD JAY SOLAR, YOAV SHAKED, GLEN LIEBER
Life of this patent
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Abstract
There is provided a microcatheter having a proximal solution lumen and a distal tip portion with a guidewire lumen. The microcatheter and methods of use thereof allows for introduction of solution into a vessel while manipulating the guidewire and/or the microcatheter itself. The solution may be a contrast solution, for viewing of the vessel, a therapeutic or diagnostic solution, or any other type of solution.
Claims23
A microcatheter comprising:
- an elongate tubular body having a body proximal end, a body distal end and a solution lumen extending axially through said elongate tubular body, said elongate tubular body comprising an outlet port at said body distal end;
- a tip portion positioned distal to said body distal end, said tip portion having a tip portion proximal end, a tip portion distal end and a tip portion lumen extending axially through said tip portion, said tip portion lumen sized for a substantially close fit for a guidewire to be held therein, wherein said tip portion has a smaller diameter than said elongate tubular body;
- and
- a spine wire extending through said elongate tubular body and through said tip portion, said spine wire having a spine wire proximal portion and a spine wire distal portion, wherein at least a portion of said spine wire distal portion is positioned within said tip portion, wherein at least a portion of said spine wire distal portion is more malleable than said spine wire proximal portion such that at least said tip portion distal end may be pre-shaped to a desired configuration.
The microcatheter of claim 14, wherein said balloon is comprised of at least one of:
- a compliant material, a semi-compliant material or a non-compliant material.
A microcatheter comprising:
- an elongate tubular body having a body proximal end, a body distal end, and a solution lumen extending axially through said elongate tubular body, said elongate tubular body comprising an outlet port at said body distal end;
- and
- a tip portion having a tip portion proximal end, a tip portion distal end, and a tip portion lumen extending axially through said tip portion, said tip portion lumen sized for a substantially close fit for a guidewire to be held therein, wherein said tip portion has a proximal opening at said tip portion proximal end and wherein said tip portion is eccentric to said elongate tubular body and wherein said proximal opening of said tip portion is not co-linear with said outlet port.
A method for providing solution to a portion of a vessel, the method comprising:
- providing a microcatheter having an elongate tubular body with a lumen extending axially therethrough and an outlet port, and a tip portion distal and eccentric to said elongate tubular body, said tip portion having a tip portion lumen extending axially therethrough;
- placing a guidewire in the vessel;
- advancing the microcatheter into the vessel by placing the guidewire through the tip portion of the microcatheter and advancing the microcatheter over the guidewire;
- introducing solution into said elongate tubular body at said body proximal end;
- and
- injecting said solution into the vessel through said outlet port while the guidewire is positioned within the tip portion.
Dependencies are inferred from the claim text.