Catheter with annular lumen to provide distal flushing

US10376170B2 · kind B2 · utility

Assignee

• Boston Scientific Scimed, Inc. · US

Inventors

• William Quinn · Freehold, US
• Kurt E. Guggenberger · North Andover, US
• Ian M. Collier · Newton, US
• Justin Aron Callaway · Goffstown, US
• Jeffrey Radziunas · Wallingford, US
• Greg Hires · San Francisco, US

Key dates

• Filing date: Aug 9, 2016
• Grant date: Aug 13, 2019
• Expiry date: Apr 8, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M25/0147
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A mapping catheter including an elongate catheter body extending from a proximal end to a distal end, a handle connected to the proximal end of the catheter body, an electrode array connected to the distal end, a deployment shaft, and an irrigation system. The catheter body includes at least one lumen. The irrigation system includes a manifold and a thin, polymeric irrigation tube. The manifold is disposed within the handle and is connectable to a source of irrigation fluid. The irrigation tube is connected to the manifold and extends around the deployment shaft from the manifold to the distal end of the catheter through the catheter body lumen. The irrigation tube forms an annular lumen between an inner surface of the irrigation tube and an outer surface of the deployment shaft. The annular lumen is configured to carry irrigation fluid from the manifold to the array.