Abstract: Various aspects of the present invention are directed towards apparatuses, systems, and method that may include a tissue ablation system. The tissue ablation system may include an ablation device, an ablation generator, and a controller configured to initiate a pre-ablation procedure in a medium, and during the pre-ablation procedure monitor temperature data and/or power data.

Abstract: Various aspects of the present invention are directed towards apparatuses, systems, and method that may include a tissue ablation system. The tissue ablation system may include an ablation device, an ablation generator, and a controller configured to initiate a pre-ablation procedure in a medium, and during the pre-ablation procedure monitor temperature data and/or power data.

Abstract: Various aspects of the present invention are directed towards apparatuses, systems, and methods that may include a tissue ablation system. The tissue ablation system may include a plurality of ablation devices, each ablation device being configured to provide ablation energy, at least one ablation generator configured to provide ablation power to at least one of the plurality of ablation devices, and a controller configured to cause each of the plurality of ablation devices to selectively receive ablation power and configured to cycle through activation of a plurality of ablation states.

Abstract: Various aspects of the present invention are directed to apparatuses, systems, and methods that may include a tissue ablation system. The tissue ablation system may include an ablation device; an ablation generator; and a controller configured to cause the ablation generator to apply a first power level to the ablation device and cause the ablation generator to apply a second power level to the ablation device, the second power level being higher than the first power level; the power provided by the ablation generator to the ablation device is adjusted from the first power level to the second power level, adjusting the power from the first power level to the second power level includes causing the ablation generator to provide a plurality of distinct intermediate power levels corresponding to delivering a plurality of intermediate energy levels from the ablation device, and each of the intermediate power levels is between the first power level and the second power level.

Abstract: The present invention provides a microwave ablation probe comprising an antenna including a helical arm and a linear arm.

Abstract: An ambulatory monitoring device includes a sensor to monitor a physiological signal and a battery power source. The device also includes a wireless transceiver adapted to monitor a first frequency band having frequencies below 1 MHz and configured to detect and receive, using less than 10 micro-amps of current from the battery power source when operating, wireless communications within the first frequency band from a remote device at least one meter away. The wireless transceiver is further adapted to transmit—after receipt from the remote device of a first wireless communication within the first frequency band that includes an invitation for further communication—a second wireless communication in a second frequency band having frequencies above 10 MHz, the second wireless communication comprising data indicative of the physiological signal as sensed by the sensor.

Abstract: An ambulatory monitoring device includes a sensor to monitor a physiological signal and a battery power source. The device also includes a wireless receiver adapted to monitor a first frequency band having frequencies below 1 MHz and configured to detect and receive, using less than 10 micro-amps of current from the battery power source when operating, wireless communications within the first frequency band from a remote device at least one meter away. The device further includes a wireless transmitter adapted to transmit—after receipt from the remote device of a first wireless communication within the first frequency band that includes an invitation for further communication—a second wireless communication in a second frequency band having frequencies above 10 MHz, the second wireless communication comprising data indicative of the physiological signal as sensed by the sensor.

Abstract: An ambulatory monitoring device includes a sensor to monitor a physiological signal and a battery power source. The device also includes a wireless receiver adapted to monitor a first frequency band having frequencies below 1 MHz and configured to detect and receive, using less than 10 micro-amps of current from the battery power source when operating, wireless communications within the first frequency band from a remote device at least one meter away. The device further includes a wireless transmitter adapted to transmit—after receipt from the remote device of a first wireless communication within the first frequency band that includes an invitation for further communication—a second wireless communication in a second frequency band having frequencies above 10 MHz, the second wireless communication comprising data indicative of the physiological signal as sensed by the sensor.

Abstract: An oscillator for use within an implantable medical device is provided. The oscillator includes a resonator and a first switch coupled to a first resistive network. The first resistive network provides a first electrical path through the first switch and a second electrical path not going through the switch. The oscillator additionally includes a second switch coupled to a second resistive network. The second resistive network provides a third electrical path through the second switch and a fourth electrical path not going through the switch. Furthermore, the oscillator includes a transistor, the base terminal coupled with the first resistive network and the resonator and the emitter terminal coupled to the fourth resistor. The second electrical path with the first switch opened has a substantially higher resistance than the first electrical path when the first switch is closed.

Abstract: Endocardial pressure measurement devices, systems and methods for the effective treatment of congestive heart failure and its underlying causes, in addition to other clinical applications.

Abstract: Embodiments are directed to apparatus and methods of minimizing current drain of an implantable medical device during wireless communication with the device, thereby reducing battery depletion of the device. In one embodiment, the implantable medical device comprises a wireless receiver configured to communicate wirelessly with an external transmitter of an external device via a plurality of communication channels each having a different frequency within a frequency band. The wireless receiver comprises a wideband receiver circuit configured to detect a signal from any of the plurality of communication channels at the different frequencies within the frequency band simultaneously.

Abstract: An oscillator for use within an implantable medical device is provided. The oscillator includes a resonator and a first switch coupled to a first resistive network. The first resistive network provides a first electrical path through the first switch and a second electrical path not going through the switch. The oscillator additionally includes a second switch coupled to a second resistive network. The second resistive network provides a third electrical path through the second switch and a fourth electrical path not going through the switch. Furthermore, the oscillator includes a transistor, the base terminal coupled with the first resistive network and the resonator and the emitter terminal coupled to the fourth resistor. The second electrical path with the first switch opened has a substantially higher resistance than the first electrical path when the first switch is closed.

Abstract: Embodiments of the present invention are directed to apparatus and methods of minimizing current drain of an implantable medical device during wireless communication with the device, thereby reducing battery depletion of the device. In one embodiment, the implantable medical device comprises a wireless receiver configured to communicate wirelessly with an external transmitter of an external device via a plurality of communication channels each having a different frequency within a frequency band. The wireless receiver comprises a wideband receiver circuit configured to detect a signal from any of the plurality of communication channels at the different frequencies within the frequency band simultaneously.

Abstract: Embodiments of the invention provide cross-band communications with an implantable medical device. In one embodiment, an implantable medical device to be implanted into a body of a patient comprises one or more sensors configured to monitor physiological condition of the body of the patient; sensor electronics configured to process a signal received from the one or more sensors; a receiver configured to receive information from the external device in a first frequency band; a transmitter configured to sending information to an external device using a second frequency band which is different from the first frequency band; and a power supply. The receiver is powered on continuously when the implantable medical device is implanted into the body of the patient.

Abstract: Endocardial pressure measurement devices, systems and methods for the effective treatment of congestive heart failure and its underlying causes, in addition to other clinical applications.