Abstract:
A microwave ablation system includes a generator operable to output energy and an ablation probe coupled to the generator that delivers the energy to a tissue region. The ablation system also includes a controller operable to control the generator and at least one sensor coupled to the ablation probe and the controller that detects an operating parameter of the ablation probe. The controller performs a system check by ramping up an energy output of the generator from a low energy level to a high energy level and monitors an output from the sensor at predetermined intervals of time during the system check to determine an abnormal state. The controller controls the generator to cease the energy output when the controller determines an abnormal state.
Abstract:
Methods and systems for controlling the usage of devices with embedded RFID tags including connecting a device to an energy source and reading data from a memory device incorporated in the device. The data may include a unique identifier (UID), a usage value, an activation value, a reprocessing value, and/or a sterilization indicator. The usage value is incremented when the device is connected to the energy source and the activation value is incremented when the device is activated permitting energy to flow from the energy source to the device. Usage of the device is prevented if the UID is on a list of prohibited UlDs, the usage value is not lower than a usage limitation value, the reprocessing value equals a reprocessing limitation value, the activation value equals an activation limitation value, and/or the sterilization indicator does not indicate that the device has been sterilized since its previous usage.
Abstract:
The present disclosure relates to methods and systems for controlling the usage of devices with embedded RFID tags. An exemplary method may include connecting the device to an energy source and reading data from a memory device incorporated in the device, wherein the data may include a unique identifier (UID), a usage value, an activation value, a reprocessing value, and/or a sterilization indicator. The method may further include incrementing the usage value when the device is connected to the energy source, and incrementing the activation value when the device is activated permitting energy to flow from the energy source to an energy consuming component of the device. The method may further include preventing usage of the device if the UID is on a list of prohibited UIDs, the usage value is not lower than a usage limitation value, the reprocessing value is equal to a reprocessing limitation value, the activation value is equal to an activation limitation value, and/or the sterilization indicator does not indicate that the device has been sterilized since its previous usage.
Abstract:
A digital measurement system includes an oscillator, a mixer, and a controller coupled to each other. The oscillator provides a reference signal having a second frequency. The mixer generates a down-converted signal based on the output signal and the reference signal. The controller then determines a characteristic of the output signal (e.g., frequency or phase) based on the down-converted signal. An analog measurement system includes a filter having a center frequency, a rectifier, and a controller. The filter filters the output signal and the rectifier rectifies the filtered signal. The controller samples the rectified signal and determines a characteristic of the output signal based on the level of the rectified signal. The reference signal controller may adjust a characteristic of the output signal based on the determined frequency and/or phase of the output signal.
Abstract:
A microwave ablation system includes an energy source adapted to generate microwave energy and a power splitting device having an input adapted to connect to the energy source and a plurality of outputs. The plurality of outputs are configured to be coupled to a corresponding plurality of energy delivery devices. The power splitting device is configured to selectively divide energy provided from the energy source between the plurality of energy devices.
Abstract:
A digital measurement system includes an oscillator, a mixer, and a controller coupled to each other. The oscillator provides a reference signal having a second frequency. The mixer generates a down-converted signal based on the output signal and the reference signal. The controller then determines a characteristic of the output signal (e.g., frequency or phase) based on the down-converted signal. An analog measurement system includes a filter having a center frequency, a rectifier, and a controller. The filter filters the output signal and the rectifier rectifies the filtered signal. The controller samples the rectified signal and determines a characteristic of the output signal based on the level of the rectified signal. The reference signal controller may adjust a characteristic of the output signal based on the determined frequency and/or phase of the output signal.
Abstract:
An electric-field capacitive coupler module includes a first processing unit, a first communication interface coupled to the first processing unit, a second communication interface, and an electric-field capacitive coupler that defines an isolation barrier. The electric-field capacitive coupler apparatus is coupled between the first communication interface and the second communication interface.
Abstract:
An end-effector assembly includes first and second jaw members, a first outer housing associated with the first jaw member, and a second outer housing associated with the second jaw member. Each of the first and second jaw members includes a sealing plate. One or both of the first and second jaw members is movable from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the sealing plates cooperate to grasp tissue therebetween. One or more longitudinal-firing optical fibers are associated with either one or both of the first and second outer housings. One or more transverse-firing optical fibers are associated with either one or both of the first and second jaw members.
Abstract:
A radio frequency identification (RFID) network is presented including a plurality of medical devices each including an RFID transponder and a single RFID transponder emulator configured to emulate functionality of each of the RFID transponders of the plurality of medical devices. The RFID network further includes a plurality of RFID interrogation devices configured to operatively communicate with the single RFID transponder emulator. The single RFID transponder emulator is used for development, testing, evaluation, and validation of each of the plurality of RFID interrogation devices.
Abstract:
A printed circuit board includes a first layer stack and a second layer stack coupled to the first layer stack. The first layer stack includes a first electrically-insulating layer, a first electrically-conductive layer, and a cut-out area defining a void that extends therethrough. The first electrically-insulating layer includes a first surface and an opposite second surface. The first electrically-conductive layer is disposed on the first surface of the first electrically-insulating layer. The second layer stack includes a second electrically-insulating layer. The second electrically-insulating layer includes a first surface and an opposite second surface. One or more electrically-conductive traces are disposed on the first surface of the second electrically-insulating layer. The printed circuit board further includes a device at least partially disposed within the cut-out area. The device is electrically-coupled to one or more of the one or more electrically-conductive traces disposed on the first surface of the second electrically-insulating layer.