Controller for a patient warming device
First Claim
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1. A patient warming apparatus comprising:
- a support surface for supporting a patient;
a convective heater;
a radiant heater; and
a controller having a first output coupled to the convective heater and a second output coupled to the radiant heater for varying output power and heat levels of the convective heater and the radiant heater, respectively, to maintain the patient located on the support surface at substantially a preselected temperature.
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Abstract
A patient warming apparatus includes a support surface for supporting a patient, a convective heater for supplying convective heat to warm the patient, and a radiant heater for supplying radiant heat to warm the patient. The apparatus also includes a controller having a first output coupled to the convective heater and a second output coupled to the radiant heater for varying output power levels of the convective heater and the radiant heater, respectively, to maintain the patient located on the support surface at substantially a preselected temperature.
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Citations
29 Claims
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1. A patient warming apparatus comprising:
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a support surface for supporting a patient; a convective heater; a radiant heater; and a controller having a first output coupled to the convective heater and a second output coupled to the radiant heater for varying output power and heat levels of the convective heater and the radiant heater, respectively, to maintain the patient located on the support surface at substantially a preselected temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus controlling operation of a patient warming device comprising:
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a support surface for supporting a patient; a convective heater for supplying convective heat to warm the patient; a radiant heater for supplying radiant heat to warm the patient; a humidifier for adding moisture to air adjacent the support surface; a control apparatus for the warming device comprising; a controller having a first output coupled to the convective heater and a second output coupled to the radiant heater for varying output power and heat levels of the convective heater and the radiant heater, respectively, to maintain the patient located on the support surface at substantially a preselected temperature, the controller having a third output coupled to the humidifier to adjust an output from the humidifier; a temperature sensor having an output coupled to the controller to provide feedback to the controller so that the controller maintains the patient located on the support surface at substantially the preselected temperature; and a humidity sensor having an output coupled to the controller, the controller adjusting the humidifier based on the output from the humidity sensor to permit the controller to maintain the humidity at substantially a preselected level. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification