Ablation catheter with flexible tip and methods of making the same

US8187267B2 · kind B2 · utility

Assignee

• St. Jude Medical, Atrial Fibrillation Division, Inc. · US

Inventors

• Carlo Pappone · Merate, IT
• Alan de la Rama · Cerritos, US
• Peter Chen · Irvine, US
• Cary Hata · Irvine, US
• Jared Shimizu · Orange, US

Key dates

• Filing date: Sep 11, 2007
• Grant date: May 29, 2012
• Expiry date: Jan 30, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/12
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A flexible tip electrode for an ablation catheter and methods for making the same are disclosed. The electrode has a surface configuration that improves flexibility of the electrode. Also, the surface configuration may allow electrode lengthwise freedom of movement, such that the electrode may be shortened when pressed against the target tissue. A coil may be located in the electrode to bias the electrode toward a predetermined configuration.