Adapter assemblies for interconnecting electromechanical handle assemblies and surgical loading units

US9987095B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• David Chowaniec · Rocky Hill, US
• Russell Pribanic · New Milford, US
• Stanislaw Marczyk · Stratford, US
• Earl M. Zergiebel · Waltham, US
• Philip Irka · Madison, US
• Anand Subramanian · Bengaluru, IN
• Paul D. Richard · Shelton, US

Key dates

• Filing date: Mar 30, 2015
• Grant date: Jun 5, 2018
• Expiry date: Sep 18, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0261
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A force transmitting assembly of an adapter assembly includes a rotatable drive shaft, a strain sensor, and a drive member. The drive shaft includes a proximal portion, a distal portion, and a flange. The distal portion includes a threaded portion. The strain sensor is coupled to the drive shaft and disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the strain sensor via the flange. The distal drive member has a proximal end rotatably coupled to the threaded portion of the drive shaft and a distal end configured to be operatively coupled to a driven member of a surgical loading unit. Rotation of the drive shaft longitudinally moves the drive member relative to the drive shaft to actuate the surgical loading unit.