Energy-harvesting system, apparatus and methods
First Claim
1. An electrosurgical energy delivery apparatus comprising:
- an energy delivery circuit configured to receive an electrosurgical energy signal from an electrosurgical energy source via a wired transmission line, the electrosurgical energy signal configured to treat tissue and to be harvested to power a component of the electrosurgical instrument;
an energy-harvesting system disposed within the electrosurgical energy delivery apparatus, the energy-harvesting system including at least one energy-harvesting circuit configured to harvest energy from the electrosurgical energy signal received via the wired transmission line and generate a power signal from the harvested energy; and
a control circuit disposed within the electrosurgical energy delivery apparatus and powered by the generated power signal, the control circuit configured to receive a control signal from an electrosurgical energy source and to control a flow of electrosurgical energy from the energy delivery circuit to an energy delivery element to treat tissue based on the received control signal.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
-
Citations
15 Claims
-
1. An electrosurgical energy delivery apparatus comprising:
-
an energy delivery circuit configured to receive an electrosurgical energy signal from an electrosurgical energy source via a wired transmission line, the electrosurgical energy signal configured to treat tissue and to be harvested to power a component of the electrosurgical instrument; an energy-harvesting system disposed within the electrosurgical energy delivery apparatus, the energy-harvesting system including at least one energy-harvesting circuit configured to harvest energy from the electrosurgical energy signal received via the wired transmission line and generate a power signal from the harvested energy; and a control circuit disposed within the electrosurgical energy delivery apparatus and powered by the generated power signal, the control circuit configured to receive a control signal from an electrosurgical energy source and to control a flow of electrosurgical energy from the energy delivery circuit to an energy delivery element to treat tissue based on the received control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An electrosurgical instrument comprising:
-
an energy delivery circuit configured to receive an electrosurgical energy signal from an electrosurgical energy source via a wired transmission line, the electrosurgical energy signal configured to treat tissue and to be harvested to power a component of the electrosurgical instrument; and an energy-harvesting circuit operatively coupled to an electrical control circuit, the energy-harvesting circuit configured to; harvest energy from the electrosurgical energy signal received via the wired transmission line at a first frequency to generate a DC power signal for powering the electrical control circuit; and harvest energy from the electrosurgical energy signal received via the wired transmission line at a second frequency to detect one or more control signals embedded in the received electrosurgical energy signal for controlling the electrical control circuit. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
Specification