In one embodiment, a personal care implement is disclosed. The personal care implement has an emitting end and an electromagnetic source for projecting electromagnetic radiation onto an area of skin to treat a skin condition. A light sensor is configured to sense an amount of ambient light present at the emitting end. A controller instructs the electromagnetic source to begin projecting only when the light sensor senses that the amount of ambient light at the emitting end is below a predefined threshold.

An ablation catheter system includes: a catheter shaft; a balloon attached to the catheter shaft; a lumen extending through the catheter shaft in a longitudinal direction thereof and communicating with the interior of the balloon; a heating electrode and a temperature sensor provided in the interior of the balloon; a heater that applies electrical energy to the heating electrode; a pressure sensor; a balloon volume sensor; and a processor that calculates the estimated depth of ablation, using as variables, heating temperature of a generator, ablation time of the generator, a value of balloon pressure obtained from the pressure sensor and a value of balloon volume obtained from the balloon volume sensor.

In one aspect, recording instruments, probes, probe sheaths, and probe sleeves may include one or more recording elements, such as one or more ECG wires, EEG wires, and/or SEEG wires. A recording element may be used for lesion localization and assessment at the time of cryotherapy, thermal therapy, or temperature modulation therapy. A recording element may be used to provide positioning and monitoring during functional neurosurgery; to apply local tissue stimulation responsive to detection of an abnormal event to regulate cellular behaviors during treatment; to effect deep brain stimulation during a neurosurgical operation; to monitor internal electrical signals and identify abnormalities. Recording instruments may be deployed in vivo for hours or days while monitoring and analyzing signals. For signal analysis, leads disposed between recording element contact surfaces and along a shaft of the recording instrument may deliver recorded signals to a controller external to the patient for analysis.

An instrument (14) is suitable for treatment of lung tumors and other tissues and a respective apparatus (15) detects the correct positioning of instrument (14) and its two electrodes (19, 20) in a suitable target tissue by observation of two parameters (G1, G2) and particularly their time-dependent change. If the change (V1, V2) of the two parameters (G1, G2) exceeds defined thresholds (S1, S2) respectively, a contact between the instrument and the tissue to be treated and thus also the positioning of the instrument in a desired position can be derived therefrom. This remarkably increases treatment safety.

In general, devices, systems, and methods for multi-source imaging are provided.

A powered surgical stapling assembly comprising a motor, an end effector, a sensor, a display, and a control circuit is disclosed. The end effector comprises a first jaw and a second jaw movable relative to the first jaw. The end effector is configured to clamp tissue between the first jaw and the second jaw. The sensor is configured to measure a parameter of the tissue clamped within the end effector. The control circuit is configured to monitor the parameter sensed by the sensor and identify when the monitored parameter stabilizes within a stabilization range. The monitored parameter is considered stable when a rate at which the monitored parameter changes falls below a predetermine threshold rate of change. The control circuit is further configured to display to a user when the parameter stabilizes.

A method of controlling the temperature of an ultrasonic blade includes applying a power level to an ultrasonic transducer to achieve a desired temperature at an ultrasonic blade coupled to the transducer via an ultrasonic waveguide, inferring a temperature of the blade based on a voltage V.sub.g(t) signal and a current I.sub.g(t) signal applied to the transducer, comparing the inferred temperature of the blade to a predetermined temperature; and adjusting the power level to the transducer based on the comparison. In some aspects, the method includes measuring a phase angle φ between the voltage V.sub.g(t) and the current I.sub.g(t) and inferring the temperature of the blade from the phase angle φ. In some aspects, the method includes measuring an impedance Z.sub.g(t) equal to a ratio of the voltage V.sub.g(t) to the current I.sub.g(t) and inferring the temperature of the blade from the impedance Z.sub.g(t).

A method for adjusting the operation of a surgical suturing instrument using machine learning in a surgical suite is disclosed. The method comprises gathering data during surgical procedures, wherein the surgical procedures include the use of a surgical suturing instrument comprising a suturing needle configured to be mechanically advanced through a suturing stroke, analyzing the gathered data to determine an appropriate operational adjustment of the surgical suturing instrument, and adjusting the operation of the surgical suturing instrument to improve the operation of the surgical suturing instrument.

An electrosurgical generator with a high-voltage power supply that supplies a DC output voltage receives the DC output voltage of the high-voltage power supply and generates a high-frequency AC output voltage. When generator is operating, a control unit receives signals from an AC output voltage measuring unit and current measuring unit. The control unit limits an increase of DC output voltage of the high-voltage power supply as soon one predefined maximum value is reached or exceeded. When the generator is operating, the control unit configured to receive signals from a DC output voltage measuring unit that represent a respective current value of the DC output voltage, and to compare a respective current value of DC output voltage with a predefined minimum value for DC output voltage, and to cause the DC output voltage of the high-voltage power supply to increase as soon as it falls below the predefined minimum value.

An electrosurgical generator and associated methods determine a real part of the impedance of treated tissue. The electrosurgical generator includes an output stage, a plurality of sensors, and a controller that controls the output stage. The controller includes a signal processor that determines an RMS voltage, an RMS current, an average power, and a real part of the impedance of the treated tissue based on measured voltage and current by using a plurality of averaging filters. The controller controls the output stage to generate electrosurgical energy based on at least the determined real part of the impedance.