A method and a device of adaptive EMC-EMI radio frequency signal data processing are provided. The method includes: performing segmentation and preprocessing in response to a radio frequency signal; performing Hilbert-Huang transform on signals after segmentation; calculating EMC power, EMI radio frequency energy and mode, and a radio frequency signal-to-noise mode, and comparing the EMC power, the EMI radio frequency energy and mode, and the radio frequency signal-to-noise mode with corresponding thresholds; and adaptively adjusting energy parameters of a radio frequency ablation device, or prompting a user to adjust the energy parameters of the radio frequency ablation device. Instantaneous and dynamic radio frequency plasma is qualitatively and quantitatively detected and classified according to a signal-to-noise mode and pattern recognition of radio frequency emission, and an actual state of the knife head is perceived, to performs adaptive control or prompt the user to perform an adjustment operation.

A system includes a signal generator, configured to pass a generated signal, which has two different generated frequencies, through a circuit including an intrabody electrode. The system further includes a processor, configured to identify, while the generated signal is passed through the circuit, a derived frequency, which is derived from the generated frequencies, on the circuit, and to generate, in response to identifying the derived frequency, an output indicating a flaw in the electrode. Other embodiments are also described.

An apparatus is provided to detect electrical contact between anatomical tissue and a shield conductor: a transformer; an alternating current (AC) reference frequency signal generator to inject a reference frequency signal to a primary winding of the transformer; a reactive impedance coupled in parallel with a secondary winding of the transformer between a first node and a second node; and a phase match detector circuit to detect a phase match between the reference frequency signal and a reflected reference frequency signal that is reflected from the secondary winding to the primary winding.

A monitoring unit which is configured to monitor a patient during an operation of a high-frequency surgery device, wherein the high-frequency surgery device is configured to separate and/or coagulate biological tissue by means of high-frequency electrical energy, wherein the monitoring unit has: measuring electrodes which are disposed in a periphery of the patient, and an evaluation and control unit which is configured to impress a predetermined measuring alternating voltage or a predetermined measuring alternating current on the measuring electrodes, and to monitor an impedance decreasing between the measuring electrodes and to monitor a time curve of the impedance and/or to monitor a temporal change thereof

A surgical instrument connectable to a surgical energy module that is configured to provide a first drive signal at a first frequency range for driving a first energy modality and a second drive signal at a second frequency range for driving a second energy modality is provided. The surgical instrument can comprise a surgical instrument component configured to receive power from a direct current (DC) power source, an end effector, and a circuit. The circuit can be configured to convert the first electrical signal to a DC voltage, apply the DC voltage to the surgical instrument component, and deliver the second energy modality to the end effector according to the second drive signal. Alternatively, the circuit can be disposed within a cable assembly configured to connect the surgical instrument to the surgical energy module.

Provided is a method of discriminating probes by using a change in resonant frequency, the method including receiving an identification frequency for discriminating the type of probe of an ultrasonic surgical device, analyzing a feedback signal generated on the basis of the received identification frequency information, discriminating any one probe among multiple types of probes on the basis of comparison between an analysis result and preset reference frequency information, and generating a control signal for controlling an operation of the ultrasonic surgical device on the basis of a predetermined value corresponding to the discriminated type of probe.

A method is provided to control delivery of heat to biological tissue comprising: imparting an RF electrical signal to the biological tissue electrically coupled between a first electrode and the second electrode; measuring frequency content of the RF electrical signal between the first electrode and the second electrode; and adjusting the RF electrical signal based upon the measured frequency content of the RF electrical signal.

A surgical instrument includes a housing having an elongated shaft extending distally therefrom and configured to support an end effector assembly at a distal end thereof. The end effector assembly includes first and second jaw members each having a tissue sealing plate disposed thereon and adapted to connect to an electrosurgical energy source for delivery thereto upon activation thereof. A sensor is disposed on one (or both) of the tissue sealing plates and is configured to communicate data relating to tissue disposed between the first and second jaw members to the electrosurgical energy source for correlation to a resonance frequency of the tissue. The resonance frequency of the tissue, in turn, is used to adjust one or more parameters associated with the delivery of electrosurgical energy to the tissue upon activation thereof.

A method of operating a modular surgical system including a control module, a first surgical module, and a second surgical module is disclosed. The method includes detachably connecting the first surgical module to the control module by stacking the first surgical module with the control module in a stack configuration, detachably connecting the second surgical module to the first surgical module by stacking the second surgical module with the control module and the first surgical module in the stack configuration, powering up the modular surgical system, and monitoring distribution of power from a power supply of the control module to the first surgical module and the second surgical module.

Described herein is a system including a catheter, an optical circuit, a pulsed field ablation energy source, and a processing device. The catheter includes a proximal section, a distal section, and a shaft coupled between the proximal section and the distal section. The optical circuit is configured to transport light at least partially from the proximal section to the distal section and back. The pulsed field ablation energy source is coupled to the catheter and configured to transmit pulsed electrical signals to a tissue sample. The processing device is configured to analyze one or more optical signals received from the optical circuit to determine changes in polarization or phase retardation of light reflected or scattered by the tissue sample, and determine changes in a birefringence of the tissue sample based on the changes in polarization or phase retardation.