Ablation catheter tip for generating an angled flow
US7914528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an ablation catheter tip for use with an irrigated catheter device comprising an inner cavity and at least one passageway that leads to an orifice, wherein the fluid flow from the orifice promotes a circular, vortex, or spiral flow around the catheter tip from the acute angle formed at the orifice with respect to a line tangent to the surface of the ablation electrode at the orifice. The present invention further provides for an ablation catheter tip, for use with an irrigated catheter device, comprising an inner cavity and at least one curved passageway that leads to an orifice, wherein a line drawn tangent to the arc of the curve forms an acute angle measured with respect to a line drawn tangent to surface of the ablation electrode at the orifice of the passageway. Additionally, the present inventions provides a method for cooling an ablation catheter tip and a method for generating, with a low-volume irrigation flow, a rotational, spiral, or vortex flow around the ablation catheter tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.