Electronic clinical thermometer

• US 4,987,579 A
• Filed: 05/24/1989
• Issued: 01/22/1991
• Est. Priority Date: 11/26/1986
• Status: Expired due to Term

• Current Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Original Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Inventors: Muramoto, Yutaka, Yoshinaka, Yasuhiro
• Primary Examiner(s): Heyman, John S.
• Application Number:
  US07/362,451
• Time in Patent Office: 608 Days
• Field of Search: 377/25, 374/183, 374/185, 374/208, 374/209, 340/573
• US Class Current: 377/25
• 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

Disclosed is an electronic clinical thermometer at least the temperature sensing portion of which, or the entire thermometer, has a flexible structure which adapts itself to any part of a body surface for automatically measuring body temperature or body surface temperature over an extended period of time. Preferably, the thermometer includes a power supply battery and a temperature measuring and storing circuit for storing in memory temperature data obtained by sensing temperature at a predetermined period by means of a temperature-responsive portion, reading out the temperature data stored in the memory in response to an externally applied data-read request, and outputting the temperature data to an external unit from a prescribed signal extracting portion. These elements are mounted on a flexible circuit board. The entirety of the electronic clinical thermometer, with the exception of the temperature-responsive portion and the signal extracting portion, is sealed and covered by a flexible, heat-insulative covering member.

Claims

1. An electronic clinical thermometer for making temperature measurement on a body surface, comprising:

a flexible substrate;

an electronic circuit, mounted on said flexible substrate, including a temperature-responsive element making surface-to-surface contact with said flexible substrate and a signal extracting portion having signal pins;

a flexible, heat-insulative covering member for surrounding said electronic circuit and said flexible substrate except for one surface of said temperature-responsive element and the signal pins of said signal extracting portion and for sealing remaining elements of said electronic clinical thermometer from ambient air; and

adhesive means, peripherally extending from said temperature-responsive element on an outer surface of said covering member, for maintaining contact and position between the one surface of said temperature-responsive element and the body surface.

2. An electronic clinical thermometer, comprising:

a flexible substrate;

an electronic circuit mounted on said flexible substrate, including

a temperature-responsive element making surface-to-surface contact with said flexible substrate;

a signal extracting portion having a signaling port;

temperature sensing means for sensing temperature from change in status of said temperature-responsive element;

a memory for storing a plurality of temperature data at addresses from zero to N;

counter means for cyclically addressing said memory from a zero address to an N address;

measurement control means for detecting temperature at a predetermined period by said temperature sensing means, successively storing the temperature data in said memory, and stopping storing of the temperature data in response to designation of the N address by said counter means; and

read-out means for successively outputting the temperature data in said memory via the signaling port of said signal extracting portion; and

a flexible, heat-insulative covering member for surrounding said electronic circuit and said flexible substrate except for one surface of said temperature-responsive element and the signaling port of said signal extracting portion and for sealing remaining elements of said electronic clinical thermometer from ambient air.

3. An electronic clinical thermometer according to claim 2, wherein the signal extracting portion includes a light signal transmitting member for transmitting the temperature data and the read-out signal to and form the signaling port.

4. An electronic clinical thermometer according to claim 2, wherein the signal extracting portion includes means for transmitting and receiving the temperature data and the read-out signal as radio signals.

5. An electronic clinical thermometer according to claim 2, wherein said covering member has an outer surface provided with affixing means for affixing the electronic clinical thermometer to a body surface for temperature measurement of the body surface.

6. An electronic clinical thermometer according to claim 2, further comprising writing means for receiving a write signal and time data from the signal extracting portion and for writing the time data in a single predetermined address of the memory for each sequence of temperature measurements.