ENERGY-HARVESTING SYSTEM, APPARATUS AND METHODS

摘要

An electrosurgical energy delivery apparatus includes an energy delivery circuit, a control circuit and an energy-harvesting system with a plurality of energy-harvesting circuits and a voltage regulator that provides a regulated DC voltage to the energy delivery circuit and/or the control circuit. The energy delivery circuit receives an electrosurgical energy signal having a primary frequency and selectively provides the electrosurgical energy signal to an energy delivery element. The control circuit connects to the energy delivery circuit and selectively enables the flow of electrosurgical energy to the energy delivery element. The plurality of energy-harvesting circuits each include an energy-harvesting antenna tuned to a particular frequency, a matched circuit configured to receive an RF signal from the energy-harvesting antenna, rectify the RF signal and generate a DC signal, and an energy storage device that connects to the voltage regulator to receive and store the DC signal.

主权项

1. An electrosurgical energy delivery apparatus, comprising:
an energy delivery circuit configured to receive an electrosurgical energy signal from an electrosurgical energy source, the electrosurgical energy signal having a primary frequency, the energy delivery circuit configured to selectively provide the electrosurgical energy signal to an energy delivery element; a control circuit operatively connected to the energy delivery circuit and configured to selectively enable the flow of electrosurgical energy to the energy delivery element; and an energy-harvesting system including:
a plurality of energy-harvesting circuits, each of the plurality of energy-harvesting circuits including:
an energy-harvesting antenna tuned to a particular frequency;a matched circuit configured to receive an RF signal from the energy-harvesting antenna at the particular frequency, the matched circuit configured to rectify the RF signal and generate a DC signal; andan energy storage device configured to receive and store the DC signal; anda voltage regulator connected to the energy storage device and configured to provide a regulated DC voltage to at least one of the energy delivery circuit and the control circuit.