Apparatus for performing an electrosurgical procedure

US8840639B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Thomas J. Gerhardt · Berlin, DE
• Wayne Siebrecht · Golden, US
• Keir Hart · Lafayette, US

Key dates

• Filing date: Oct 29, 2010
• Grant date: Sep 23, 2014
• Expiry date: May 28, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/0091
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An endoscopic forceps is provided and includes a housing having a handle assembly including a movable handle having a mechanical interface disposed thereon. An end effector assembly connected to a distal end of the shaft includes a pair of first and second jaw members movable relative to one another from an open to a clamping position. A drive assembly includes a resilient member. A lock assembly is pivotably coupled to the housing and in operative communication with the movable handle. The lock assembly is movable with the handle assembly. The mechanical interface moves along the lock assembly when the movable handle is moved proximally causing the lock assembly to rotate about the pivot point and into communication with the resilient member such that the resilient member is prevented from moving distally against the bias provided therefrom such that the first and second jaw members remain in the clamping position.