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US 12,115,097 B2Granted
Patient warming system
AssigneeAmerican Sterilizer Company
InventorsRichard P. Nardo, Farhad Haghgoeian, Andrew Moss, John Michael Kasunich, Damon Jurkiewicz, James T. Dacek, Gabor Louis Toth
Life of this patent
Estimating the term…
Abstract
A patient warming system includes a control unit coupled to one or more warming devices. The control unit may control application of power to the heating elements of the warming devices. The control unit may provide hardware and/or software approaches to monitor and detect an overtemperature situation and/or fault of a given warming device.
Claims17
A patient warming system, comprising:
- a control unit comprising:
- an I/O interface comprising two or more connectors, the two or more connectors having a same configuration;
- a controller configured to execute a program stored in a memory of the control unit that identifies a warming device plugged into one of the two or more connectors and that controls application of power to the warming device relative to a set temperature and in accordance with the identity of the warming device;
- warming devices interchangeably coupled to the control unit via the I/O interface, each warming device comprising:
- one or more heating elements;
- one or more temperature sensors;
- and
- a connector that is configured to be coupled to any one of the two or more connectors,
- wherein the program as executed by the controller:
- monitors a rolling average of temperature measurements from the one or more temperature sensors when the set temperature is changed to a temperature lower than a current measured temperature;
- and
- issues an over-temperature alarm or warning if the rolling average decreases by less than a predetermined amount over a predetermined time period.
9 more elements
A patient warming system, comprising:
- a control unit comprising:
- an I/O interface comprising two or more connectors, the two or more connectors having a same configuration;
- a controller configured to execute a program stored in a memory of the control unit that identifies a warming device plugged into one of the connectors and that controls application of power to the warming device relative to a set temperature and in accordance with the identity of the warming device;
- warming devices interchangeably coupled to the control unit via the I/O interface, each warming device comprising:
- one or more heating elements;
- one or more temperature sensors;
- and
- a connector that is configured to be coupled to any one of the two or more connectors,
- wherein the program as executed by the controller:
- calculates an area of a temperature curve of a temperature measured by the one or more temperature sensors over the set temperature as a function of time when the measured temperature is above the set temperature;
- and
- issues an over-temperature alarm or warning if the calculated area exceeds a predetermined maximum value.
9 more elements
A The patient warming system, comprising:
- a control unit comprising:
- an I/O interface comprising two or more connectors, the two or more connectors having a same configuration;
- a controller configured to execute a program stored in a memory of the control unit that identifies a warming device plugged into one of the connectors and that controls application of power to the warming device relative to a set temperature and in accordance with the identity of the warming device;
- warming devices interchangeably coupled to the control unit via the I/O interface, each warming device comprising:
- one or more heating elements;
- one or more temperature sensors;
- and
- a connector that is configured to be coupled to any one of the two or more connectors,
- wherein one of the warming devices comprises two heating elements and at least two temperature sensors, each of the heating elements having at least one of the temperature sensors associated therewith, and the program as executed by the controller to control the two heating elements at least in part based on a highest overall temperature sensor reading of the warming device, wherein a percentage of power relative to its maximum power applied to the heating elements of a zone having a highest zone temperature that is less than the highest overall temperature is at most set to a value that is within a predetermined percentage higher than the percentage of power relative to its maximum power applied to the heating elements of the zone having the highest overall temperature.
6 more elements
A patient warming system, comprising
- a control unit comprising:
- an I/O interface comprising two or more connectors, the two or more connectors having a same configuration;
- a controller configured to execute a program stored in a memory of the control unit that identifies a warming device plugged into one of the connectors and that controls application of power to the warming device relative to a set temperature and in accordance with the identity of the warming device;
- warming devices interchangeably coupled to the control unit via the I/O interface, each warming device comprising:
- one or more heating elements;
- one or more temperature sensors;
- and
- a connector that is configured to be coupled to any one of the two or more connectors,
- wherein the one or more temperature sensors of one of the warming devices are spaced apart from an outer layer of the warming device by one or more intervening layers, and the program as executed by the controller compensate for temperature readings of the temperature sensors by applying an offset to a measured temperature, wherein the offset compensates for the difference between the measured temperature and the actual temperature at the outer layer of the warming device.
6 more elements
Dependencies are inferred from the claim text.