DEFLECTABLE ELECTRODE WITH HIGHER DISTAL BIAS RELATIVE TO PROXIMAL BIAS

• Main Authors: GUO, Wei, SARLEY, John M, HARRIS, Demetrius N, LUCAS, Guion Y, MESSERLY, Jeffrey D, SALGUERO, Joseph S, SHELTON IV, Frederick E, FLAKER, Richard W, BREHM, Tyler N, BRUNSON JR., Bruce, BISHOP, Gregory D, KEENAN, Michael A, ESTERA, Frederick, BISHOP, Robert S, VALENTE, Lauren M, FALLER, Craig N, KEMPER, Joseph H, BURKART, Ellen E, OLSON, William A, STROBL, Geoffrey S, LEUCK, Stephen M, MASTROIANNI, Nina, BOUDREAUX, Chad P
• Format: Patent
• Language: English; French; German
• Published: 28.08.2024
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

An end-effector and a surgical instrument are disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and to electrically couple to a pole of an electrical generator. The clamp arm includes a clamp jaw defining zones, a spring disposed in each of the zones, and a cantilever electrode configured to couple to an opposite pole of the electrical generator disposed along the zones and in contact with each of the springs to apply a variable spring bias along the length of the cantilever electrode. The cantilever electrode is fixed to the clamp jaw at a proximal end and free to deflect at a distal end. The spring bias force a spring in a zone is different from the spring bias force bias of another spring in another zone.