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US 8,948,850 B2Granted
Non-contact thermometer sensing a carotid artery
AssigneeArc Devices, Ltd
InventorJason Roth
Life of this patent
Estimating the term…
Abstract
Methods and apparatus are provided which in some implementations a non-contact thermometer determines a temperature of a subject from a carotid source point of the subject.
Claims19
An apparatus to determine a body temperature from a carotid artery source point, the apparatus comprising:
- a housing;
- a non-contact electromagnetic sensor operably mounted to the housing, the non-contact electromagnetic sensor being operable to receive electromagnetic energy from the carotid artery source point of a subject and operable to generate a numerical representation of the electromagnetic energy of the carotid artery source point;
- a printed circuit board mounted in the housing, electrically coupled to the non-contact electromagnetic sensor and operable to determine the body temperature of the subject from the numerical representation of the electromagnetic energy of the carotid artery source point,
- wherein determining the body temperature of the subject further comprises:
- calculating the body temperature as fstb(Tsurface temp+fntc(Tntc))+F4body,
- where fstb is a representation of a surface of the body,
- where Tsurface temp is the numerical representation of the electromagnetic energy of the carotid source point,
- where fntc is mathematical formula of an ambient temperature reading,
- where Tntc is the ambient air temperature reading,
- where F4body is the representation of the calibration difference,
- fntc(Tntc) is the bias in consideration of the temperature sensing mode;
- and
- a button operably coupled to the printed circuit board.
10 more elements
An apparatus to measure a body temperature, the apparatus comprising:
- a housing;
- a non-contact sensor operably mounted to the housing, the non-contact sensor having an electromagnetic sensor, the electromagnetic sensor being operable to:
- receive electromagnetic energy from a plurality of body source points of a subject including a carotid source point of the subject;
- and
- generate a numerical representation of the electromagnetic energy of each of the plurality of body source points;
- a printed circuit board mounted in the housing and operable to determine the body temperature of the subject from the numerical representation of the electromagnetic energy of each of the plurality of body source points, wherein determining the body temperature of the subject further comprises:
- calculating the body temperature, yielding a calculated body temperature of each of the plurality of source points;
- and
- averaging the calculated body temperature of each of the plurality of source points, yielding the body temperature,
- wherein calculating the body temperature further comprises:
- calculating the body temperature as fstb(Tsurface temp+fntc(Tntc))+F4body,
- where fstb is a representation of a surface of the body,
- where Tsurface temp is the numerical representation of the electromagnetic energy of the carotid source point,
- where fntc is mathematical formula of an ambient temperature reading,
- where Tntc is the ambient air temperature reading,
- where F4body is the representation of the calibration difference,
- fntc(Tntc) is the bias in consideration of the temperature sensing mode;
- and
- a display device operably coupled to the printed circuit board and operable to display the body temperature.
16 more elements
A method to measure body temperature, the method comprising:
- sensing electromagnetic energy at a plurality of external source points on a subject, yielding a sensed electromagnetic energy of the plurality of external source points;
- determining the body temperature of the subject from the sensed electromagnetic energy of the plurality of external source points including a carotid source point, the determining being performed by a microprocessor, wherein determining the body temperature of the subject further comprises:
- calculating the body temperature as fstb(Tsurface temp+fntc(Tntc))+F4body,
- where fstb is a representation of a surface of the body,
- where Tsurface temp is the numerical representation of the electromagnetic energy of the carotid source point,
- where fntc is mathematical formula of an ambient temperature reading,
- where Tntc is the ambient air temperature reading,
- where F4body is the representation of the calibration difference,
- fntc(Tntc) is the bias in consideration of the temperature sensing mode;
- and
- averaging the body temperature of each of the plurality of external source points, yielding the body temperature.
8 more elements
Dependencies are inferred from the claim text.