Dual-function plasma and non-ionizing microwave coagulation electrosurgical instrument and electrosurgical device incorporating the same

摘要

An electrosurgical device capable of both generating a plasma to solidify the surface and emitting a non-ionized microwave field (in the absence of plasma) to solidify at a deeper level. The instrument includes a probe tip connected to receive radio frequency (RF) and / or microwave frequency energy from a generator and defining a flow path for the gas. The probe tip generates a plasma by generating a high electric field from the received RF and / or microwave frequency energy so that the probe tip defines a bipolar (eg, coaxial) structure and traverses the flow path for the gas. Adjustable and maintained, and a second configuration in which the probe tip defines an antenna structure and emits non-ionized microwave energy into the tissue. [Selection] Figure 12A