Gas-operated surgical instrument

US9307963B2 · kind B2 · utility

Assignee

• Aesculap AG · DE

Inventors

• Thomas Scholten · Tuttlingen, DE
• Rupert Mayenberger · Rielasingen-Worblingen, DE

Key dates

• Filing date: Dec 4, 2012
• Grant date: Apr 12, 2016
• Expiry date: May 10, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00548
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A gas operated surgical instrument is provided. The instrument includes a pressurized gas connection for connection to a source of pressurized gas, a working piston adapted to be acted upon by a pressurized gas, an actuating element for actuating the instrument, and a regulating device coupled to the actuating element and to the working piston for regulating a feed force of the working piston. The regulating device is configured such that, for feed forces below a predetermined limit force, it defines a first work area in which the working piston is movable in the distal direction solely owing to a feed force applied with the actuating element, and that above the limit force the regulating device defines a second work area in which the working piston is movable in the distal direction by being acted upon by pressurized gas.