Cavitation catheter

US11266425B2 · kind B2 · utility

Assignee

• Medtronic Vascular, Inc. · US

Inventors

• Gerry McCaffrey · Tuam, IE
• Grainne Teresa Carroll · Galway, IE
• Risa Tom Egerter · Galway, IE
• Aran Murray · Galway, IE
• Jonathan Ashley Cope · Santa Rosa, US
• Peter Glynn · Galway, IE
• Christopher W. Storment · Santa Rosa, US
• Jack Wallis · Galway, IE

Key dates

• Filing date: Oct 23, 2019
• Grant date: Mar 8, 2022
• Expiry date: May 27, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M25/104
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.