Methods and devices are provided for actuating and/or articulating a circular stapler. In one exemplary embodiment, a circular stapler is provided having an elongate shaft with a stapling apparatus coupled thereto. An electrically expandable and contractible actuator, such as an electroactive polymer...http://www.google.se/patents/US20060047308?utm_source=gb-gplus-sharePatent US20060047308 - ELECTROACTIVE POLYMER-BASED ACTUATION MECHANISM FOR CIRCULAR STAPLER
