Electrosurgical device with disposable shaft having rack and pinion drive

US9737300B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• Shailendra K. Parihar · Mason, US
• Barry C. Worrell · Maineville, US
• David T. Martin · Melbourne, AU
• William J. White · Sharonville, US
• Gregory W. Johnson · Milford, US

Key dates

• Filing date: Mar 13, 2013
• Grant date: Aug 22, 2017
• Expiry date: Jul 8, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2034/301
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus comprises an end effector, a shaft assembly, and an interface assembly. The end effector is coupled with the shaft assembly. The shaft assembly comprises a translating member extending through the shaft assembly. The interface assembly is operable to engage the shaft assembly and comprises a plurality of drive shafts and a rack. One of the drive shafts is operable to drive the rack along a path that is parallel to the longitudinal axis of the shaft assembly. A plurality of racks may be used to rotate the shaft assembly, articulate the shaft assembly, and/or drive the translating member through the shaft assembly to thereby actuate the end effector.