Belted electronic display clinical thermometer with alarm

• US 4,904,997 A
• Filed: 12/17/1987
• Issued: 02/27/1990
• Est. Priority Date: 12/17/1987
• Status: Expired due to Term

• Current Assignee: United Microelectronics Corporation
• Original Assignee: Daniel Chen, Houng Y. Liu
• Inventors: Liu, Houng Y., Chen, Daniel
• Primary Examiner(s): YASICH, DANIEL
• Application Number:
  US07/133,932
• Time in Patent Office: 803 Days
• Field of Search: 374/159, 374/163, 374/208, 128/736, 455/100, 340/870.16, 340/870.17
• US Class Current: 340/870.17
• CPC Class Codes: G01K 1/024 for remote indication
• CPC Class Codes: G01K 13/20 Clinical contact thermometers for use with humans or animals

Abstract

A combined alarm and display belted clinical thermometer being wound on an arm of a user which comprises a thermal sensor to sense the temperature of the user. The sensing signals are converted and the measured value is displayed on an LCD display. The belted clinical thermometer also comprises a comparator which is preset witha reference value to comparing the measured temperature with a reference temperature and; if the measured temperature is significantly larger than the reference temperature, an alarm is triggered to sound. Further to the basic design, the belted clinical thermometer can be equipped with a transmitter which can signal a remote receiver to sound an alarm.

Claims

1. A belted electronic display clinical thermometer adopted for being secured about an arm of a person comprising:

a belt having an inner face, an outer face and means for fixing said belt about an arm of a user;

a thermal sensor mounted on said inner face to be held adjacent said arm, said thermal sensor having a resistance in proportion to a temperature of said arm to derive an internal signal proportional to said temperature of said arm;

a temperature measuring integrated circuit, said internal signal being applied to said temperature measuring integrated circuit, said temperature measuring integrated circuit developing an output signal corresponding to said temperature in response to said input signal;

a liquid crystal display to which said output signal is applied to provide a readable indication of said temperature;

a comparator to which said output signal is applied to compare said temperature to a preset reference temperature, said comparator developing a high signal when said temperature exceeds said reference temperature;

a trigger circuit responsive to said high signal to develop an analog output signal; and

an alarm for sounding an audible signal response to said analog output signal.

2. A belted electronic display clinical thermometer, as claimed in claim 1, wherein said belt is made of flannel or the like.

3. A belted electronic display clinical thermometer, as claimed in claim 1, further comprising setting means for adjusting said reference temperature.

4. A belted electronic display clinical thermometer as claimed in claim 1, further comprising:

a transmitter mounted on said belt, said transmitter emitting a particular frequency signal in response to said high signal developed by comparator;

a remote receiver to detect said particular frequency signal and to develop a second analog output signal;

and a remote second alarm for sounding an audible signal in response to said second analog output signal.