Electrosurgical instrument with asynchronous excitation electrodes

• Main Authors: FIEBIG KEVIN M, ECKERT CHAD E, ARONHALT TAYLOR W, MUMAW DANIEL J, SHELTON IV FREDERICK E, MESSERLY JEFFREY D, MORGAN, JOHN, P, ZEINER MARK S, WORTHINGTON SARAH A, MORGAN NEAL M
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

A surgical instrument includes an end effector including a proximal end, a distal end, a first jaw, and a second jaw. The first jaw includes a first electrode. The second jaw includes a second electrode and a unipolar electrode disposed centrally downward along the length of the end effector. The first electrode and the second electrode cooperate to transfer bipolar energy to tissue during a bipolar cycle. The monopole electrode has a wedge shape that tapers in width along the length of the end effector. The unipolar electrode is electrically insulated from the first electrode and the second electrode. The unipolar electrode is configured to be able to cut the tissue using unipolar energy in a unipolar cycle. 本发明涉及一种外科器械，该外科器械包括端部执行器，该端部执行器包括近侧端部、远侧端部、第一钳口和第二钳口。该第一钳口包括第一电极。该第二钳口包括第二电极以及沿该端部执行器的长度向下居中设置的单极电极。该第一电极和该第二电极配合以在双极周期中将双极能量传递到组织。该单极电极具有楔形形状，该楔形形状沿该端部执行器的长度在宽度上渐变。该单极电极与该第一电极和该第二电极电绝缘。该单极电极被配置成能够在单极周期中使用单极能量来切割该组织。