Catheter with variable arcuate distal section
US-9220433-B2 · Dec 29, 2015 · US
Catheter with flow balancing valve
US9662169B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9662169-B2 |
| Application number | US-201113194937-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2011 |
| Priority date | Jul 30, 2011 |
| Publication date | May 30, 2017 |
| Grant date | May 30, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly.
First claim
Opening claim text (preview).
What is claimed is: 1. A catheter comprising: an elongated body; a distal section having at least a first electrode and a second electrode, each electrode adapted for irrigation; a control handle proximal the elongated body; a coaxial irrigation tubing having at least an inner lumen and an outer lumen, the inner lumen dedicated to transporting fluid to the first electrode, and the outer lumen dedicated to transporting fluid to the second electrode; and a common valve comprising a moveable member, an inlet opening and an outlet opening, the outlet opening being fluidly connected to both the inner lumen and the outer lumen of the coaxial irrigation tubing, the common valve having first and second separate fluid flow pathways between the inlet opening and the outlet opening, the second fluid flow pathway extending around an exterior surface of the moveable member and into the outer lumen, the first fluid pathway extending through the moveable member and in the inner lumen, and the moveable member being configured to automatically move in response to a threshold fluid force to thereby enlarge or expand the second fluid flow pathway. 2. A catheter of claim 1 , wherein the first electrode is a tip electrode and the second electrode is a ring electrode. 3. A catheter of claim 2 , wherein the second electrode comprises at least two ring electrodes and the outer lumen of the coaxial irrigation tubing is configured to transport fluid to the at least two ring electrodes. 4. A catheter of claim 1 , wherein the first and second separate fluid flow pathways are isolated from each other within the catheter.
Assignees
Inventors
Classifications
by means of electric pumps · CPC title
with electronic control means or interfaces · CPC title
open · CPC title
- A61B18/1492Primary
having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence) · CPC title
Ablation · CPC title
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Frequently asked questions
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- What does patent US9662169B2 cover?
- A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen o…
- Who is the assignee on this patent?
- Schultz Jeffrey W, Zirkle Michael Olen, Biosense Webster Israel Ltd
- What technology area does this patent fall under?
- Primary CPC classification A61B18/1492. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 30 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).