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US 11,376,060 B2Granted
Electrosurgery patient pad monitor
AssigneeCooperSurgical, Inc.
InventorsAlberto Avila, John Glaberson
Life of this patent
Estimating the term…
Abstract
An electrosurgery system includes a first generator configured to output an operating signal. The system also includes a pathway for the operating signal, the pathway includes an active electrode and a patient pad. The system also includes a circuit configured to measure a complex impedance of the patient pad. The circuit includes a second generator configured to output a measuring signal. The system also includes a voltage transformer, a current transformer, and a plurality of filters.
Claims30
An electrosurgery system comprising:
- a first generator configured to output an operating signal;
- a pathway for the operating signal, the pathway comprising:
- an active electrode and
- a patient pad;
- and
- a circuit configured to measure a complex impedance of the patient pad, the circuit comprising:
- a second generator configured to output a measuring signal;
- a voltage transformer configured to receive the measuring signal at a primary of the voltage transformer and configured to receive the operating signal at a secondary of the voltage transformer, the secondary of the voltage transformer being connected to the patient pad;
- a current transformer connected, at a primary of the current transformer, to the secondary of the voltage transformer,
- wherein a current induced in the patient pad by the secondary of the voltage transformer is measured, by the current transformer, based on the connection of the primary of the current transformer to the secondary of the voltage transformer;
- and
- a plurality of filters.
9 more elements
A method for monitoring the complex impedance of a patient pad comprising:
- generating an operating signal by a first generator of an electrosurgery system, the operating signal configured to travel along a pathway comprising an active electrode and a patient pad;
- generating a measuring signal by a second generator, the second generator being part of a circuit that further comprises:
- a voltage transformer configured to receive the measuring signal at a primary of the voltage transformer and configured to receive the operating signal at a secondary of the voltage transformer, the secondary of the voltage transformer being connected to the patient pad;
- a current transformer connected, at a primary of the current transformer, to the secondary of the voltage transformer, and
- a plurality of filters;
- measuring a complex excitation voltage by a voltage channel associated with the voltage transformer;
- measuring a complex induced current by a current channel associated with the current transformer, wherein the complex induced current is based on the connection of the primary of the current transformer to the secondary of the voltage transformer;
- and
- dividing the complex excitation voltage by the complex induced current to calculate a complex impedance value.
6 more elements
Dependencies are inferred from the claim text.