05293877 is referenced by 325 patents and cites 8 patents.

A body temperature thermometer has a probe head assembly (8) which includes a first sensor (10), such as a thermopile, for generating a first output signal representative of an amount of infrared radiation impinging thereon The probe head assembly further includes a waveguide (16) and a surrounding hollow probe (14) for receiving infrared radiation emitted by a biological surface tissue, such as the external ear canal and tympanic membrane of a patient, and directing the radiation to the first sensor. A second sensor (12) is mounted in the probe head assembly for generating a second output signal representative of a temperature of the first sensor. A third sensor (26) is thermally coupled to the waveguide for providing a third output signal representative to the temperature thereof. A processor (30) is connected to the sensors for processing the output signals to determine a body temperature of the patient utilizing a calibration mapping of a plurality of target temperatures to corresponding output signals taken over a predetermined range of ambient temperatures. A display (34) is driven by the processor for providing a user with a visual indication of the determined body temperature.

Title
Body temperature thermometer and method fo measuring human body temperature utilizing calibration mapping
Application Number
7/842129
Publication Number
5293877
Application Date
March 11, 1992
Publication Date
March 15, 1994
Inventor
Peter A Crill
Leucadia
CA, US
John J Korff
Oceanside
CA, US
Gary J O Hara
Escondido
CA, US
Agent
Baker Maxham Jester & Meador
Assignee
Sherwood IMS
CA, US
IPC
A61B 5/00
View Original Source