ELECTROSURGICAL INSTRUMENT WITH ELECTRODES OPERABLE IN BIPOLAR AND MONOPOLAR MODES

Smart overview of the Invention

The electrosurgical instrument described features an end effector with two jaws, each equipped with electrodes for surgical procedures. The first jaw includes a first electrode, while the second jaw contains a second and third electrode. This configuration allows the instrument to operate in both monopolar and bipolar modes. The jaws can move between open and closed positions to grasp tissue, enabling precise surgical interventions.

Functionality

The second jaw's second electrode is designed to deliver monopolar energy, while the third electrode can be connected to the first electrode to provide bipolar energy. A conductive circuit facilitates this transition, creating a return path for the bipolar energy. When disconnected, the first electrode alone delivers a different monopolar energy. This dual capability enhances the instrument's versatility in surgical applications.

Control Circuit

The instrument includes a control circuit that manages energy delivery during surgical procedures. It executes a predetermined power scheme tailored for sealing and cutting tissue. The control circuit can adjust power levels based on sensor readings, ensuring optimal energy application and minimizing unintended energy diversion from the target site.

Applications

Designed for various surgical contexts, the instrument is suitable for open, laparoscopic, endoscopic, and robotic-assisted surgeries. Its articulatable end effector allows for precise positioning, making it adaptable to different surgical environments. The ability to switch between monopolar and bipolar energy modes provides flexibility in tissue treatment, such as dissecting, cutting, and coagulating.

Illustrations and Manufacturing

Accompanying drawings provide detailed views of the instrument's components and operational modes. These include schematics of the generator and electrosurgical system, cross-sectional views of the end effector, and methods for manufacturing the jaws. Graphs illustrate power schemes for tissue coagulation and cutting, while tables and diagrams offer insights into the instrument's energy management during treatment cycles.