Provided is a method for managing radio frequency (RF) and ultrasonic signals output by a generator that includes a surgical instrument comprising an RF energy output and an ultrasonic energy output and a circuit configured to receive a combined RF and ultrasonic signal from the generator. The method includes receiving a combined radio frequency (RF) and ultrasonic signal from a generator, generating a RF filtered signal by filtering RF frequency content from the combined signal; filtering ultrasonic frequency content from the combined signal; generating an ultrasonic filtered signal; providing the RF filtered signal to the RF energy output; and providing the ultrasonic filtered signal to the ultrasonic energy output.

The ablation and mapping catheter dedicated to treatments in electrocardiology and ablation of cardiac arrhythmias with the possibility of visualisation includes a distal tip, diagnostic rings, a main tube, a guiding handgrip, and an electrical connector for a generator through which the diagnostic rings and a distal ring are connected to a system for three-dimensional electroanatomical mapping. The catheter includes at least 8 (up to 14) diagnostic rings, wherein 4 diagnostic distal rings are connected to one generator and through it to the system for three-dimensional electroanatomical mapping and to an electrophysiological system, and subsequent 4 (up to 10) diagnostic proximal rings are connected to a second generator and/or to the system for three-dimensional electroanatomical mapping and to the electrophysiological system.

A modular surgical system for use in a surgical procedure is disclosed. The modular surgical system includes a control module, a first surgical module arrangeable in a stack configuration with the control module, and a second surgical module arrangeable in a stack configuration with the control module and the first surgical module. The first surgical module includes a first counter module, a first stop-counter module configured to receive a sequence signal that causes the first stop-counter module to disable the first counter module from incrementing at a first final count, and a first delay module. The second surgical module includes a second counter module and a second stop-counter module configured to receive the sequence signal from the first surgical module after a predetermined delay. The sequence signal causes the second stop-counter module to disable the second counter module from incrementing at a second final count.

A surgical instrument comprising a motor assembly, a shaft defining a shaft axis, a distal head, a rotary drive member, and a distal head lock member movable between a first position where the distal head is unlocked from the shaft and a second position where the distal head is locked to the shaft is disclosed. The motor assembly comprises a motor and a controller configured to operate the motor in first and second operating modes. The distal head comprises an end effector movable between an open configuration and a closed configuration. The distal head is rotated about the shaft axis when the distal head lock member is in the first position and the rotary drive member is actuated. The end effector is moved from the open configuration toward the closed configuration when the distal head lock member is in the second position and the rotary drive member is actuated.

Various systems and methods for determining the state of an end effector of an ultrasonic surgical instrument are disclosed. A control circuit can be configured to measure a complex impedance of an ultrasonic electromechanical system including an ultrasonic blade and compare the measured complex impedance to reference complex impedance patterns that each correspond to a state of the end effector. Accordingly, the control circuit can further be configured to determine the state of the end effector according to which of the plurality of reference complex impedance patterns the measured complex impedance corresponds.

An isolating circuit for electrosurgical generator arranged to produce radiofrequency (RF) energy and microwave energy for treating biological tissue. The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be delivered into tissue along a common feed path. The isolating circuit comprises a tunable waveguide isolator at a junction between the microwave channel and signal combiner, and can include a capacitive structure between a ground conductor of the signal combiner and a conductive input section of the waveguide isolator to inhibit coupling of the RF energy and leakage of the microwave energy. The isolating circuit can combine into a single tunable unit all the necessary components to isolate the microwave and RF channels from one another whilst providing a high withstanding voltage.

An electrosurgical generator capable of supplying energy in a waveform that causes electroporation in biological tissue. The electrosurgical generator may comprise an electroporation waveform supply unit that is integrated with an electromagnetic signal supply unit for generating microwave electromagnetic signals and radiofrequency electromagnetic signals for treatment. The electrosurgical generator may be configured to deliver different types of energy along a common feed cable. The electroporation waveform supply unit comprises a DC power supply and a DC pulse generator. The DC power supply may include a DC-DC converter for up-converting a voltage output by an adjustable voltage supply. Each DC pulse may have a duration in the range 1 ns to 10 ms and a maximum amplitude in the range 10 V to 10 kV.

Disclosed is a method of generating electrical signal waveforms by a generator. The generator includes a processor and a memory in communication with the processor. The memory defines a first and second table. The processor retrieves information from the first table defined in the memory, where the information is associated with a first wave shape of a first electrical signal waveform for performing a surgical procedure. The processor retrieves information from the second table defined in the memory, where the information is associated with a second wave shape of a second electrical signal waveform for performing a surgical procedure. The processor combines the first and second wave shapes to create a combined wave shape of an electrical signal waveform for performing a surgical procedure and the combined wave shape electrical signal waveform for performing a surgical procedure is delivered to a surgical instrument.

A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a radio frequency (RF) energy output powered by the battery assembly and configured to apply RF energy to a tissue; an ultrasonic energy output powered by the battery assembly and configured to apply ultrasonic energy to the tissue; and a controller configured to, based at least in part on a measured tissue characteristic, start application of RF energy by the RF energy output or application of ultrasonic energy by the ultrasonic energy output at a first time.

An electrosurgical generator includes a first radio frequency source having: a first power supply configured to output a first direct current waveform; a first radio frequency inverter coupled to the first power supply and configured to generate a monopolar radio frequency waveform from the first direct current waveform; and a first controller configured to control the first radio frequency inverter to output the monopolar radio frequency waveform. The generator also includes a second radio frequency source having: a second power supply configured to output a second direct current waveform; a second radio frequency inverter coupled to the second power supply and configured to generate a bipolar radio frequency waveform simultaneously as the monopolar radio frequency waveform; and a second controller configured to control the second radio frequency inverter to output the bipolar radio frequency waveform.