Ablation catheter and operation method of same

US12082877B2 · kind B2 · utility

Assignee

• CRC EP, INC. · US

Inventors

• Dorin Panescu · Sunnyvale, US
• Cary Hata · Irvine, US
• Alan de la Rama · Cerritos, US
• Henning Ebert · Berlin, DE
• Steffen HOLZINGER · Berlin, DE

Key dates

• Filing date: Dec 28, 2021
• Grant date: Sep 10, 2024
• Expiry date: Dec 28, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2218/002
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an ablation catheter for treatment of a patient's tissue, for example for a PVI procedure on a patient's heart, comprising an elongated catheter shaft and an ablation portion being arranged at a distal end of the catheter shaft with a plurality of electrodes accommodated along the ablation portion, wherein the ablation portion comprises at least two loop sections forming a three-dimensional spiral. In order to increase safety of ablation treatment, spare adjacent tissue (e.g. nerves, vessels, esophagus) and shorten ablation time, a pitch, or clearance of two neighboring loop sections is greater than an ionization threshold of the medium around the distal section, for example blood or gases resulted from electrolysis. The invention further relates to an operation method of such ablation catheter.