An ablation device and method for pulsed field ablation, the device comprising a catheter including an expandable basket, a set of electrodes formed on the expandable basket, and a pulse generator suitable for generating electric pulses wherein the pulse generator being in electrical connection with the set of electrodes. The expandable basket is formed of a braided mesh of filaments, wherein the filaments are made of nonconductive material, wherein at least portion of the filaments comprises a lumen, or is made by molding, wherein the filaments further include electrodes and conductive wires. The conductive wires at least partially lead inside of the lumen of the filaments, or are overmolded and are electrically connected to the electrodes.

The present disclosure relates to a lighting arrangement, which comprises at least one light source, with at least one camera and a control system, wherein the colour and/or colour temperature of the light source is variable and the camera records images of a region illuminated by the light source. According to the disclosure, the control system controls the lighting arrangement such that the light source illuminates the illuminated region successively with light of a different colour and/or colour temperature, wherein the control system separately evaluates and/or outputs a first image recorded in a first colour and/or colour temperature of the lighting.

Various aspects of a generator, ultrasonic device, and method for estimating and controlling a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance as defined as

[00001]$Z_g\left(t\right)=\frac{V_g\left(t\right)}{I_g\left(t\right)};$

The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis. The control circuit estimates the state of the end effector of the ultrasonic device and controls the state of the end effector of the ultrasonic device based on the estimated state.

A catheter system (100) for treating a treatment site (106) includes an energy source (124), a balloon (104), an energy guide (122A), and a balloon integrity protection system (142). The energy source (124) generates pulses of energy. The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) has a balloon wall (130) that defines a balloon interior (146). The balloon (104) is configured to retain a balloon fluid (132) within the balloon interior (146). The energy guide (122A) is configured to receive the energy from the energy source (124) and guide the energy into the balloon interior (146) so that plasma is formed in the balloon fluid (132) within the balloon interior (146). The balloon integrity protection system (142) is operatively coupled to the balloon (104). The balloon integrity protection system (142) is configured to inhibit temperature-induced rupture of the balloon (104) due to the plasma formed in the balloon fluid (132) within the balloon interior (146) during use of the catheter system (100).

A medical apparatus includes a probe configured for insertion into a body of a patient. The probe includes a plurality of electrodes configured to contact tissue within the body. The medical apparatus further includes an electrical signal generator configured to apply between one or more pairs of the electrodes signals of first and second types in alternation. The signals of the first type include a sequence of bipolar pulses having an amplitude sufficient to cause irreversible electrophoresis (IRE) in the tissue contacted by the electrodes. The signals of the second type include a radio-frequency (RF) signal having a power sufficient to thermally ablate the tissue contacted by the electrodes.

A method for adjusting the operation of a surgical instrument using machine learning in a surgical suite is disclosed.

An ablation probe tip 100 having a shaft 102 with an insertion end 104 and an annular aperture 120 near the insertion end 104. A center of ablation 124 is located within the shaft 102 and surrounded by the annular aperture shaft 102. The ablation probe tip 100 may be part of an ablation probe system 50 that includes an ablation source 60 that provides ablation means 62 to the ablation probe tip 100. The center of ablation 124 is a focal region from which the ablation means 62 radiates through the annular aperture 120 to form an ablation zone 150, 160, 170. The system 50 has at least one intra-operative control selected from the group of: ablation zone positioning control, ablation zone shaping control, ablation center control, ablation zone temperature control, guided ablation volume/diameter control, and power loading control.

An electrosurgical ablation device provides pulse width modulated DC power to a heating segment in a catheter for use in providing treatment. In some embodiments the DC power to be modulated is sourced from an AC/DC power converter coupled to a source of AC power. In some embodiments the DC power to be modulated is sourced from a battery. In some embodiments the device switchably selects for modulation DC power sourced from either the AC/DC power converter or the battery, for example based on availability of power from the AC/DC power converter.

A tracker, a surgical tracking system, and a method for operating the tracker are provided. The tracker comprises an interface configured to attach the tracker to a surgical object that is to be tracked. The tracker further comprises circuitry comprising a detector configured to detect electromagnetic radiation, wherein the circuitry is configured to generate a trigger signal upon detection of a change of intensity of electromagnetic radiation by the detector. The circuitry further comprises a plurality of emitters configured to emit electromagnetic radiation, wherein the circuitry is configured to control the plurality of emitters to emit electromagnetic radiation responsive to the trigger signal.

An aspiration system for aspirating blood clots from a human body has a power source, an aspiration pump, and an electrical motor coupled to the power source and the aspiration pump, wherein the aspiration pump is pulsed at a frequency below 10 Hz.