Temperature sensing return electrode pad
First Claim
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1. An electrosurgical return electrode, comprising:
- a conductive pad including at least one temperature monitoring zone and a patient-contacting surface configured to conduct electrosurgical energy; and
a temperature sensing circuit coupled to the conductive pad, the temperature sensing circuit including at least one diode disposed within the at least one temperature monitoring zone, the at least one diode having a predetermined forward voltage drop that is indicative of temperature of the at least one temperature monitoring zone.
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Abstract
An electrosurgical return electrode is disclosed. The return electrode includes a conductive pad having one or more temperature monitoring zones and a patient-contacting surface configured to conduct electrosurgical energy and a temperature sensing circuit coupled to the conductive pad. The temperature sensing circuit includes at least one diode disposed within the at least one temperature monitoring zone, the at least one diode having a predetermined forward voltage drop that is indicative of temperature of at least one temperature monitoring zone.
112 Citations
19 Claims
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1. An electrosurgical return electrode, comprising:
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a conductive pad including at least one temperature monitoring zone and a patient-contacting surface configured to conduct electrosurgical energy; and a temperature sensing circuit coupled to the conductive pad, the temperature sensing circuit including at least one diode disposed within the at least one temperature monitoring zone, the at least one diode having a predetermined forward voltage drop that is indicative of temperature of the at least one temperature monitoring zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for performing electrosurgery, comprising:
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providing an electrosurgical return electrode having a conductive pad that includes at least one temperature monitoring zone and a patient-contacting surface configured to conduct electrosurgical energy, and a temperature sensing circuit coupled to the conductive pad, the temperature sensing circuit including at least one diode disposed within the at least one temperature monitoring zone, the at least one diode having a predetermined forward voltage drop that is indicative of temperature of the at least one temperature monitoring zone; placing the electrosurgical return electrode in contact with a patient; generating electrosurgical energy from an electrical energy source; supplying the electrosurgical energy to the patient via an active electrode; and monitoring the predetermined forward voltage drop to measure the temperature of the at least one temperature monitoring zone. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An electrosurgical system for performing electrosurgery, the electrosurgical system comprising:
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an electrosurgical generator configured to provide electrosurgical energy; an electrosurgical return electrode including a conductive pad including at least one temperature monitoring zone and a patient-contacting surface configured to conduct electrosurgical energy, and a temperature sensing circuit operatively associated with the conductive pad, the temperature sensing circuit including at least one diode disposed within the at least one temperature monitoring zone and at least one resistor coupled in series with the at least one diode, the at least one diode having a predetermined forward voltage drop that is indicative of temperature of the at least one temperature monitoring zone; and an active electrode to supply electrosurgical energy to a patient. - View Dependent Claims (16, 17, 18, 19)
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Specification