Abstract: The present disclosure provides systems and methods for wirelessly charging an implantable medical device. An external charging device includes a coil, signal generating circuitry to drive current through the coil at a charging frequency to induce current in a second coil in the implantable medical device, monitoring circuitry to generate an output signal to monitor charging operations, and a comb filter. The comb filter is configured to apply filtering to the output signal to remove noise from the output signal, wherein the filtering is applied based on the charging frequency. The external charging device is configured to process the filtered output signal to detect a circuit state of charging circuitry of the implantable medical device during charging operations, and the external charging device is configured to vary the charging frequency based, in part, on detection of the circuit state of the charging circuitry of the implantable medical device.

Abstract: A probe for performing a cryoablation treatment that includes a handle with a heater configured to heat a fluid and a needle connected to the handle and extending therefrom to a distal end. The needle includes a pathway configured to move the fluid from the handle toward the distal end to heat the needle.

Abstract: A probe for performing an ablation treatment includes a shell defining an outer surface, a cooling path comprising an inflow path and a return path for a cryogen, and at least one radio frequency (RF) emitter. The probe is used to provide combination radio frequency (RF) and cryo treatments during a common procedure.

Abstract: A probe for performing an ablation treatment includes a shell defining an outer surface and a cryogen supply conduit positioned in the shell. The probe also includes a flexible circuit positioned on at least a portion of the outer surface of the shell. The flexible circuit includes at least one radio frequency (RF) emitter for delivering RF energy to a target tissue.

Abstract: A method of performing a cryoablation treatment includes initiating a flow of cryogen to a tip of the cryoprobe and obtaining ice formation data characterizing a shape of ice forming at a target tissue in a patient. The method also includes comparing the ice formation data to a predetermined ice formation profile and energizing a heating portion on the cryoprobe to limit growth of ice in a first direction relative to a predetermined location on the cryoprobe while the cryogen flows to the tip of the cryoprobe.

Abstract: A method of performing a cryoablation treatment includes obtaining an ice formation model and preparing a cryoablation treatment plan based on the ice formation model and one or more characteristics of the target tissue. The method also includes initiating a cryoablation freezing cycle and obtaining ice formation data that describes one or more characteristics of ice being formed during the cryoablation freezing cycle. The method also includes determining a position of one or more isotherms of the ice being formed based on the ice formation data and the ice formation model.

Abstract: A system for performing cryoablation treatments includes at least one computing device that is configured to obtain cryoablation operating information from one or more sensors coupled to a cryoablation treatment apparatus and to obtain patient information from one or more patient monitoring apparatuses. The computing device also obtains ice formation information characterizing one or more characteristics of an iceball produced by the cryoablation treatment apparatus and compares the ice formation information to an ice formation plan. If the ice formation information differs from the ice formation plan, the computing device adjusts one or more operating parameters of the cryoablation treatment apparatus.

Abstract: A method of performing a cryoablation treatment may include positioning a plurality of measurement points in predetermined locations relative to a target tissue in a patient and obtaining ice formation measurement information from the plurality of measurement points. The method may also include comparing the ice formation measurement information to a predetermined ice formation plan and adjusting a flow of a cryo-fluid to a cryoprobe if the ice formation measurement information deviates from the predetermined ice formation plan by more than predetermined deviation level.

Abstract: A system for performing a cryoablation treatment may include at least one computing device configured to obtain temperature information at a plurality of heating locations on a cryo-fluid supply. The plurality of heating locations includes a first heating location and a second heating location. The computing device is also configured to compare a first temperature at the first heating location to an expected first temperature and to initiate a first heating cycle at the first heating location if the first temperature at the first heating location is less than the expected first temperature. The computing device also compares a second temperature at the second heating location to an expected second temperature wherein the second heating location disposed downstream of the first heating location and initiates a second heating cycle at the second heating location if the second temperature is less than the expected second temperature.

Abstract: A system to perform cryoablation treatments includes at least one computing device configured to obtain at least one impedance measurement from a cryoprobe and determine whether a bleeding condition is present at a treatment site proximate the cryoprobe based on the at least one impedance measurement. The at least one computing device also adjusts one or more inputs to a heater in the cryoprobe when the at least one impedance measurements indicate that the bleeding condition is present.

Abstract: Devices and methods to effectuate closed loop electrical stimulation of nerve tissue, based on feedback data, to mitigate pain of a patient are disclosed. Feedback data corresponding to bioelectric signals of neurons stimulated by stimulation pulses may be received and analyzed. Based on receipt of the feedback data, it may be determined to modify one or more stimulation parameters, corresponding to the stimulation pulses, to enhance an efficacy of the stimulation pulses at blocking generation and/or propagation of one or more pain signals through a neuroanatomy of the patient. Subsequent and additional stimulation pulses may be provided based on a modified set of stimulation parameters and configured to enhance attenuation of generation and/or transmission of pain signals through the neuroanatomy of the patient to ultimately reduce a level of pain experienced by the patient.

Abstract: A method of operation of a wireless charger device includes transmitting a wireless charging signal to a receiver device. The method further includes receiving a clamping pulse from the receiver device based on the wireless charging signal. The clamping pulse indicates a first value associated with a falling edge of the clamping pulse and further indicates a second value associated with a rising edge of the clamping pulse. The clamping pulse is detected based on a comparison of a first threshold with the first value and further based on a comparison of a second threshold with the second value, and the second threshold is different than the first threshold. The method further includes determining a charging state of the receiver device based on the clamping pulse.

Abstract: A signal processing assembly for a detector includes a signal amplifier, a control unit, and an offset control module. The signal amplifier is configured to receive an input signal from the detector assembly and to provide an output signal. The control unit is configured to compare a first data point from the output signal with a signal range, and to generate an input bias control signal based upon the comparison. The offset control module is coupled with the control unit and configured to receive the input bias control signal. The offset control module includes a power supply operatively coupled with an input of the signal amplifier, and the offset control module is configured to generate and apply an adaptive input offset signal at the input of the signal amplifier based upon the input bias control signal.

Abstract: An implantable medical device (IMD) is configured to provide stimulation therapy to a patient. The IMD includes a rechargeable battery, pulse generating circuitry powered by the rechargeable battery and an inductive coupling element including at least one inductor operative to accept radio frequency (RF) power from an external charger and generate a charging voltage. A temperature sensor is configured to measure a temperature of at least a part of the IMD and output measured temperature data. A waveform generating circuit for converting measured temperature data to a waveform signal for controlling a recharging current for the rechargeable battery. The inductive coupling element is configured to communicate the waveform signal to the external charger.

Abstract: An implantable medical device (IMD) includes a rechargeable battery, pulse generating circuitry, an inductive coupling element including at least one inductor operative to accept radio frequency (RF) power from an external charger and generate a charging current. A recharging circuit generates a recharge current for recharging the rechargeable battery, the recharge current being based on the charging current generated from the inductive coupling element. The recharging circuitry is operable to detect a recharging level of the rechargeable battery. A temperature sensor is configured to measure a temperature of at least a part of the IMD and output measured temperature data. A control circuit controls the charging current received at the recharging circuitry to limit the charging current based upon the recharging level and to limit the charging current for a period of time based upon the measured temperature data to communicate a temperature level to the external charger.

Abstract: The present disclosure provides systems and methods for wirelessly charging an implantable medical device. An external charging device includes a coil, signal generating circuitry to drive current through the coil at a charging frequency to induce current in a second coil in the implantable medical device, monitoring circuitry to generate an output signal to monitor charging operations, and a comb filter. The comb filter is configured to apply filtering to the output signal to remove noise from the output signal, wherein the filtering is applied based on the charging frequency. The external charging device is configured to process the filtered output signal to detect a circuit state of charging circuitry of the implantable medical device during charging operations, and the external charging device is configured to vary the charging frequency based, in part, on detection of the circuit state of the charging circuitry of the implantable medical device.

Abstract: A kitchen appliance is disclosed. The kitchen appliance comprises: a user interface control unit for interacting with a user; a plurality of driver units configured to control power supply to a plurality of coils; and the plurality of coils configured to heat one or more cookers based on electromagnetic induction effect, wherein each driver unit is configured to generate a control signal for a corresponding coil of the plurality of coils, and the control signal is used for controlling the power supply to the corresponding coil by controlling turn-on or turn-off of an insulated gate bipolar transistor (IGBT) in a single-pipe module.

Abstract: A signal processing assembly for a detector includes a signal amplifier, a control unit, and an offset control module. The signal amplifier is configured to receive an input signal from the detector assembly and to provide an output signal. The control unit is configured to compare a first data point from the output signal with a signal range, and to generate an input bias control signal based upon the comparison. The offset control module is coupled with the control unit and configured to receive the input bias control signal. The offset control module includes a power supply operatively coupled with an input of the signal amplifier, and the offset control module is configured to generate and apply an adaptive input offset signal at the input of the signal amplifier based upon the input bias control signal.

Abstract: Electrosurgical systems and methods. At least one example embodiment is a method including: performing a first electrosurgical activity by way of first energy at a first frequency applied to an active electrode of an electrosurgical wand, the application of the first energy by way of an electrosurgical generator, and the first electrosurgical activity produces a first effect that is tissue-altering; and measuring an electrosurgical parameter by way of a second energy at a second frequency applied to the active electrode, the measuring simultaneously with the performing of the first electrosurgical activity, and the second frequency different than the first frequency.

Abstract: Disclosed herein is a framework for facilitating patient signal filtering. In accordance with one aspect, the framework performs a signature cycle matching pursuit method to remove a first signal component from a combination patient signal and generate a first output signal. Sub-bandwidth filtering of the first output signal may be performed to remove a second signal component and generate a second output signal. The framework may further remove a third signal component from the second output signal to generate a third output signal. A signal of interest may then be reconstructed based on the third output signal.