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Medical thermometer and body temperature measurement system

A thermometer and body temperature technology, applied in body temperature measurement, thermometer, signal transmission system, etc., can solve the problems of non-linear temperature characteristics, limited measurement accuracy, and time changes are easily affected by noise, etc.

Inactive Publication Date: 2012-01-11
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, a thermistor has the advantages of being small, lightweight, and inexpensive, but on the other hand, it has the disadvantages that its temperature characteristic is nonlinear, easily changes with time, and is easily affected by noise.
Therefore, there is a limit to the measurement accuracy, and in order to realize higher-precision body temperature measurement (for example, body temperature measurement in the case of achieving an accuracy of about ±0.05°C), it is desirable to apply a temperature sensor with high measurement accuracy

Method used

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  • Medical thermometer and body temperature measurement system
  • Medical thermometer and body temperature measurement system
  • Medical thermometer and body temperature measurement system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0041]

[0042] figure 1 In the first embodiment of the present invention, a thermometer (adhesive thermometer with antenna) 110 provided with a radio tag (RF-ID) including a semiconductor temperature sensor and a data reading device ( A diagram showing the appearance and configuration of the body temperature measurement system 100 of the portable device) 101.

[0043] like figure 1 As shown, the thermometer 110 is configured such that a body temperature tag 113 as a wireless tag is sandwiched and fixed between a front film 111 and a back film 112 (semi-permeable, about 100 μm in thickness).

[0044] The film 111 on the surface and the film 112 on the back can be obtained from the following materials, namely: polyether urethane, polyurethane polymers of polyester urethane; amide polymers such as polyether polyamide block polymers; Materials such as acrylic polymers such as acrylate resins; polyolefin polymers such as polyethylene, polypropylene, and ethylene / vinyl acetate ...

no. 2 approach

[0132] In the above-mentioned first embodiment, the processing unit is arranged in the antenna, but the present invention is not limited thereto, and the processing unit may be connected to the antenna via a wire extending from the antenna. Hereinafter, the body temperature measurement system in this embodiment will be described. In addition, for the sake of simplification, the description will mainly be made on points different from the above-mentioned first embodiment.

[0133]

[0134] Figure 11 It is a figure showing the appearance structure of the body temperature measurement system 1100 in the 2nd Embodiment of this invention, This body temperature measurement system 1100 has: the thermometer (adhesive type with antenna) equipped with the radio|wireless tag (RF-ID) containing the semiconductor temperature sensor thermometer) 1110; a data reading device (carrying device) 1101 that can be carried by the measurer.

[0135] like Figure 11 As shown, thermometer 1110 ca...

no. 3 approach

[0152] In the above-mentioned second embodiment, the antenna unit 1120, the extension unit 1130, and the body temperature measurement unit 1140 are arranged on the same plane, but the present invention is not limited thereto. For example, the antenna unit 1120 and the extension unit 1120 may be arranged The installation part 1130 is arranged in a vertical shape with respect to the body temperature measurement part 1140 .

[0153] In addition, in the above-mentioned first embodiment, the antenna unit 1120, the extension unit 1130, and the body temperature measurement unit 1140 are formed in a symmetrically arranged shape, but the present invention is not limited thereto. For example, the antenna unit 1120 and the extension unit 1130 can be It is formed in a shape asymmetrically arranged with respect to the body temperature measurement unit 1140 .

[0154]In any case, it is desirable that the body temperature measurement unit 1140 has a shape and a size suitable for the measurem...

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Abstract

The invention provides a medical thermometer and a body temperature measurement system. High accuracy body temperature measurement is achieved in an adhesive thermometer. The disclosed medical thermometer is equipped with a body temperature tag (113), a back film (112) that is constituted to be adhesive, a heat insulating material that covers a processor (115), and a surface film (111) that is sandwiched between the processor (115) and the back film (112). The thermometer is characterized in that the processor (115) is equipped with a power circuit that is connected to an antenna (114) and that is activated accompanying the generation of induced electromotive force in the antenna (114), a detection means to which two types of semiconductors-a P-type and an N-type-are coupled and wherein two or more semiconductor temperature sensors which detect band-gap voltage are connected in parallel, and a storage means which stores calibration data to calibrate the band-gap voltage detected by the aforementioned detection means. With the activation of the aforementioned power circuit, the band-gap voltage detected by the aforementioned detection means is transmitted via the antenna (114) together with the aforementioned calibration data.

Description

technical field [0001] The present invention relates to a technique for measuring body temperature of a subject. In particular, it relates to a measurement technique with good measurement accuracy in the temperature measurement range of 32 to 42°C. Background technique [0002] Conventionally, in hospitals and the like, the body temperature of patients is regularly measured and the measurement results are managed. Generally, when measuring the body temperature, the thermometer is attached to the measurement site of the subject, and the thermometer is kept in a stationary state for a certain period of time until the measurement is completed. In addition, after the measurement is completed, the measurer performs the work of confirming and recording the measurement result. [0003] However, when the subject is an infant or a seriously ill patient, it is difficult to continuously attach the thermometer to the measurement site, so accurate body temperature measurement is not ea...

Claims

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Application Information

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IPC IPC(8): G01K7/00G01K1/02G01K7/01G08C17/00
CPCG01K13/002G01K7/01G01K1/024G01K13/20
Inventor 小泽仁栗尾胜萩野喜晴
Owner TERUMO KK
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