System and method for monitoring and controlling the temperature of a catheter-mounted heater
First Claim
1. A system for monitoring and controlling a temperature of a catheter mounted heating element, comprising:
- a thermodilution catheter having a heating element;
a calibration circuit means;
means for controlling the supply of power to the system;
means for switching power between said calibration circuit and the heating element;
means for determining whether power has been supplied to said calibration circuit; and
means responsive to the power determining means to remove power from the system.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for monitoring and controlling a temperature of a heating element in a thermodilution catheter to maintain it within safe physiological limits includes a calibration circuit, a device for controlling the supply of power to the system, a relay between the calibration circuit and the heating element for switching power therebetween, a transistorized voltage detecting circuit for determining whether power has been supplied to the calibration circuit, and a device responsive to transistorized voltage detecting circuit to remove power from the system. Also, a method for monitoring and controlling a temperature of a thermodilution catheter-mounted heating element including providing a calibration circuit, switching a supply of power to either the calibration circuit or the heating element, monitoring the supply of power to the calibration circuit, and removing power from either the calibration circuit or the heating element in response to the monitored power at the calibration circuit.
31 Citations
28 Claims
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1. A system for monitoring and controlling a temperature of a catheter mounted heating element, comprising:
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a thermodilution catheter having a heating element; a calibration circuit means; means for controlling the supply of power to the system; means for switching power between said calibration circuit and the heating element; means for determining whether power has been supplied to said calibration circuit; and means responsive to the power determining means to remove power from the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of monitoring and controlling a temperature of a thermodilution catheter mounted heating element, comprising the steps of:
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providing a calibration circuit means; switching a supply of power either to the calibration circuit means or to the heating element; monitoring the supply of power to the calibration circuit; and removing power from either the calibration circuit or the heating element in response to the monitored power at the calibration circuit means. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification