End effector for electrosurgical instrument with irrigation

US11413087B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Mark A. Davison · Mason, US
• Mark E. Tebbe · Lebanon, US
• Kristen G. Denzinger · Cincinnati, US
• Ryan M. Asher · Cincinnati, US
• Craig T. Davis · Cincinnati, US
• Kevin A. Bash · Cincinnati, US
• Eric M. Roberson · Lebanon, US
• John E. Brady · Cincinnati, US
• Jeffrey A. Bullock · Cincinnati, US
• Jeffrey L. Aldridge · Lebanon, US
• Monica L. Zeckel · Zionsville, US
• Shan Wan · Plymouth, US
• Kristen L. D'Uva · Cincinnati, US

Key dates

• Filing date: Aug 31, 2017
• Grant date: Aug 16, 2022
• Expiry date: Jul 11, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2218/007
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus includes a shaft assembly and an end effector. The shaft assembly includes an outer sheath, at least one irrigation conduit, and at least one suction conduit. The end effector includes a first electrode, a second electrode, and a web. The electrodes extend distally relative to a distal end of the outer sheath. The electrodes are operable to apply bipolar RF energy to tissue. The web extends laterally between the first and second electrodes. The web is positioned distal to the distal end of the outer sheath.