Dual step bailout for motorized RF device

US10709495B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• Megan A. Broderick · Sharonville, US
• Catherine A. Corbett · Cincinnati, US
• Kevin M. Fiebig · Cincinnati, US
• Eric N. Johnson · Maineville, US
• Richard L. Leimbach · Cincinnati, US
• David M. Locke · Springboro, US
• Gavin M. Monson · Oxford, US
• Rudolph H. Nobis · Mason, US
• Mark D. Overmyer · Cincinnati, US
• Brett E. Swensgard · West Chester, US
• Gregory A. Trees · Loveland, US
• Aaron C. Voegele · Loveland, US

Key dates

• Filing date: Nov 13, 2015
• Grant date: Jul 14, 2020
• Expiry date: May 9, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/08021
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Methods and devices are provided for retracting a cutting assembly in the event of a failure on a motorized electrosurgical device. A surgical device is provided that includes a handle portion with an elongate shaft extending distally therefrom. The elongate shaft has first and second jaws at a distal end, and the jaws are configured to engage tissue. The surgical device also has a cutting assembly configured to cut tissue engaged between the first and second jaws. A drive shaft extends from the handle of the surgical device through the elongate shaft and is coupled to the cutting assembly for moving the cutting assembly. The surgical device has a motorized gear assembly with at least one motor driven gear that is configured to move the drive shaft. The surgical device also has a bailout assembly that is configured to manually move the drive shaft.