JPS6131932A - Electronic clinical thermometer - Google Patents

Electronic clinical thermometer

Info

Publication number
JPS6131932A
JPS6131932A JP15455584A JP15455584A JPS6131932A JP S6131932 A JPS6131932 A JP S6131932A JP 15455584 A JP15455584 A JP 15455584A JP 15455584 A JP15455584 A JP 15455584A JP S6131932 A JPS6131932 A JP S6131932A
Authority
JP
Japan
Prior art keywords
temperature
heater
detecting element
detection
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15455584A
Other languages
Japanese (ja)
Inventor
Takuya Komoda
卓哉 菰田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP15455584A priority Critical patent/JPS6131932A/en
Publication of JPS6131932A publication Critical patent/JPS6131932A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/42—Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/20—Clinical contact thermometers for use with humans or animals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

PURPOSE:To make a thermometry time constant by providing a heating part such as a heater to the detection part of the electronic clinical thermometer which samples and processes detection information of a detecting element provided to the detection part and displays temperature on a display part. CONSTITUTION:The electronic clinical thermometer samples and processes information detected by the detecting element 4 provided to the detection part 2 and displays the temperature on the display part 3. Then, the heater 10 is arranged at the periphery of the detecting element 4 arranged at the detection part 2 to provide the heat part. When a push button 1 is pressed, an electric power source part 8 puts the heater 10, thermometric element 4, etc., all in operation. Namely, when the push button 1 is pressed, electric current flows to respective parts and the heater 10, which heats the detecting element 4 and detection part 2; when the temperature of the detecting element 4 attains to a set temperature, e.g. 35 deg.C, a gate is used to put a display part 7 in operation. Therefore, thermometry is attained within the constant necessary time without any influence of the ambient temperature before the start.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は、電子体温計に関するものであって、その目的
とするところは、検温時間の一定化、短縮化を可能なら
しめようとするものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electronic thermometer, and its purpose is to make it possible to standardize and shorten the temperature measurement time.

〔背景技術］ 従来、第１図に示すような電子体温計が一般に市販され
ている。押しボタン■は、電源スィッチをかねており、
これを押すと、表示部に表示が出て検温可能となる。被
検温者の被検温部、例えば口控内、わきの下等に、検温
部■をセットすると、この温度を検知し、検温が開始さ
れる。[Background Art] Conventionally, electronic thermometers as shown in FIG. 1 are generally commercially available. The push button■ doubles as a power switch,
When you press this button, a message will appear on the display and you will be able to measure your temperature. When the temperature measurement part (2) is set in the temperature measurement area of the person to be measured, such as the inside of the mouth or the armpit, this temperature is detected and temperature measurement is started.

検温の終了判断は、−足回数の各サンプリングした温度
が、あらかじめ設定された差分△Ｔ′ｃ内におさまるこ
とで、終了の判断を行なうようになうための体温計内部
の構成を示す。The internal configuration of the thermometer is such that the end of temperature measurement is determined when each sampled temperature of the number of steps falls within a preset difference ΔT'c.

第２図において、■は検温素子、■はサンプリング回路
、■は演算部、■は表示部、■は電源部である。押しボ
タン■を押すと電源部■がオンし、上記検温素子■、サ
ンプリング回路■等に通電し起動させる。検温素子■の
検知温度をサンプリング回路■でサンプリングし、サン
プリング結果を演算部■で処理し、表示部■に被検者の
体温として表示するのである。In FIG. 2, ■ is a temperature measuring element, ■ is a sampling circuit, ■ is a calculation section, ■ is a display section, and ■ is a power supply section. When the push button ■ is pressed, the power supply section ■ is turned on, and the temperature measuring element ■, the sampling circuit ■, etc. are energized and activated. The temperature detected by the thermometer (2) is sampled by the sampling circuit (2), the sampling result is processed by the calculation unit (2), and the result is displayed as the subject's body temperature on the display unit (3).

一般に、上記温度検知部ｌこは、サーミスタや、ｐｎ接
合ダイオードなどが用いられており、体温の変化に対し
、十分な感度が得られるようになっている。が、高感度
ゆえに、外乱の影響をうけにくくするため、検知素子■
の熱容量をある程度大きくする必要があった。また、通
常体温計は室温中に十分長く放置されたのち使用される
ため、外気温により、検知素子■の初期温度が検温時間
に直接影響する。例えば、体温が３７℃とすると、外気
温が１０℃のときは２７℃、外気温が３０’Ｃのときは
７０℃の温度上昇となるから、明εかに、外気温が１０
℃のときは、検温時間が長くなる。即ち、検知素子■の
熱上昇率をｔ’Ｑ／秒とし、外気温、ｓ℃とし、体温を
ｕ℃とすると、検温時間ｍは、 ｍ　ｗ　　ｌｕ　−ｓｌ／ｌ　　（秒）で与えられる。Generally, a thermistor, a pn junction diode, or the like is used in the temperature detection section 1, so that sufficient sensitivity to changes in body temperature can be obtained. However, due to its high sensitivity, the detection element ■
It was necessary to increase the heat capacity to some extent. Furthermore, since thermometers are usually used after being left at room temperature for a sufficiently long time, the initial temperature of the sensing element (2) directly influences the temperature measurement time depending on the outside temperature. For example, if the body temperature is 37°C, when the outside temperature is 10°C, the temperature will rise by 27°C, and when the outside temperature is 30'C, the temperature will rise by 70°C.
℃, the temperature measurement time will be longer. That is, when the rate of heat increase of the sensing element (2) is t'Q/sec, the outside temperature is s°C, and the body temperature is u°C, the temperature measurement time m is given by m w lu -sl/l (seconds).

しかるに体温Ｕは、大きな変化はないから（通常３５℃
〜４２℃）、検温時間は、外気温Ｓに左右されることに
なる。これでは、検温時間のバラツキが大きく、品質管
理上重大な問題である。However, body temperature U does not change much (normally 35℃).
~42°C), the temperature measurement time will depend on the outside temperature S. This results in large variations in temperature measurement time, which is a serious problem in terms of quality control.

〔発明の目的〕 本発明は上記欠点を排除し、検温時間の一定化を可能な
らしめることを目的としてなされたものである。[Object of the Invention] The present invention has been made to eliminate the above-mentioned drawbacks and to make it possible to make temperature measurement time constant.

〔発明の開示」 この発明の要旨とするところは検知部に設ける検知素子
の検出する情報をサンプリングし、かつ演算処理して表
示部に温度表示する電子体温計において、検知部にヒー
タ等の加熱部を設けることを特徴とする電子体温計であ
る。[Disclosure of the Invention] The gist of the present invention is an electronic thermometer that samples information detected by a detection element provided in a detection section, processes the information, and displays the temperature on a display section, in which a heating section such as a heater is provided in the detection section. This is an electronic thermometer characterized by being provided with.

以下こ′の発明を第３図及びｊ８４図に図示せる一実施
例番こ基づいて説明する。This invention will be described below with reference to an embodiment shown in FIGS. 3 and 84.

第３図及び１１４図はこの発明の実施例の１つを示すも
のである。3 and 114 show one embodiment of the invention.

図において、■は検知素子、■はサンプリング回路、■
は演算部、■は表示部、■は電源部である。検知部■に
配した検知素子■の周囲にはヒータＯを配して熱部が設
けられている。電源部■は押しボタンスイッチ■を押す
ことによりヒータ［株］、検温素子０等をすべて作動で
きる状態にセットする。In the figure, ■ is the detection element, ■ is the sampling circuit, and ■
is a calculation section, ■ is a display section, and ■ is a power supply section. A heating section is provided by disposing a heater O around the detection element (2) arranged in the detection section (2). By pressing the push button switch ■, the power supply unit ■ sets the heater [stock], temperature measuring element 0, etc. to a state where they can all be operated.

検温素子■の検知温度をサンプリング回路■でサンプリ
ングし、サンプリング結果を演算部■で処理し、表示部
■に被検者の体温として表示するようになっている。The temperature detected by the thermometer element (2) is sampled by the sampling circuit (2), the sampling result is processed by the calculation unit (2), and the result is displayed as the subject's body temperature on the display unit (3).

而して押しボタン■をおすと、このヒータ［相］に電流
が流れ、検温部■の温度が上昇する。このヒータ■の熱
容量を大きくとれば、検知素子■の温度は短時間に上昇
する。検知部■の温度を例えば３５℃にまでこのヒータ
［相］であらかじめ上昇させた後、検温を開始すれば検
温時間は体温のみに左右されるから検温時間の均一化が
はかれる。ヒータ［相］等により検知部■の温度が上昇
するまで、表示部■に温度を表示させないようにすれば
、誤操作が防止できる。Then, when the push button ■ is pressed, current flows through this heater [phase], and the temperature of the temperature measuring part ■ increases. If this heater (2) has a large heat capacity, the temperature of the sensing element (2) will rise in a short time. If temperature measurement is started after the temperature of the detection part (1) is raised to, for example, 35° C. by this heater [phase], the temperature measurement time is determined only by the body temperature, so that the temperature measurement time can be made uniform. Erroneous operation can be prevented by not displaying the temperature on the display section (2) until the temperature of the detection section (2) rises by the heater [phase] or the like.

以下、使用時の動作の説明をする。まず、押しボタン■
をおすとト１４区及びヒータ［株］に電流が流れ、ヒー
タ［相］によって、検温素子■及び検温部■が加熱され
る。この検温素子■の温度がサンプリング回路■を介し
て演算部■によってモニタさ′れ、検温素子■の温度が
あらかじめ設定された温度、例えば３５℃に達すると、
ゲートが開き、表示部■が作動する。表示部■は、検温
可能表示を行ない、同時に検温部■、の現在の温度を表
示し、検温状態へ移行する。検温状態の動作は従来のも
のと同じ検温動作を行うが、常にあらかじめ設定された
温度から検温が開始するので、開始前の周囲温度に影響
されることなく一定の所要時間で検温できるのである。The operation during use will be explained below. First, press the button■
When is pressed, current flows through the 14th section and the heater [phase], and the temperature measuring element (2) and the temperature measuring part (2) are heated by the heater [phase]. The temperature of this thermometer (■) is monitored by the calculation unit (2) via the sampling circuit (2), and when the temperature of the thermometer (2) reaches a preset temperature, for example, 35°C,
The gate opens and the display ■ is activated. The display section (2) displays the possibility of temperature measurement, and at the same time displays the current temperature of the temperature measurement section (2), and shifts to the temperature measurement state. The temperature measurement operation in the temperature measurement state is the same as the conventional one, but since temperature measurement always starts from a preset temperature, temperature measurement can be performed in a fixed amount of time without being affected by the ambient temperature before starting.

尚、前述の回路では、ヒータ［相］へ加える電流が一定
であるため、熱のオーバーシュートがおこることが考え
られる。即ち、ある設定温度になりヒータ電流がオフし
ても、慣性により設定温度をこえることがある。これで
は、そのときの測定したい体温が低い場合これをこえる
Ｓそれがあった。Note that in the above-described circuit, since the current applied to the heater [phase] is constant, heat overshoot may occur. That is, even if a certain set temperature is reached and the heater current is turned off, the set temperature may be exceeded due to inertia. With this, if the body temperature you want to measure at that time is low, it may exceed this.

よって、このヒータの熱慣性に対応するため次のような
実施例による改良も考慮されている。第５図にその回路
図を示す。Therefore, in order to cope with the thermal inertia of the heater, the following improvements are being considered. FIG. 5 shows the circuit diagram.

以下Ｒｔｈは、検温素子■であるサーミスタの抵抗値で
ある。Ｃは時定数設定用のコンデンサ、Ｑはトランジス
タである。Hereinafter, Rth is the resistance value of the thermistor which is the temperature measuring element (2). C is a capacitor for setting a time constant, and Q is a transistor.

まず、周囲温度が冷えているときを考える。このとき、
サーミスタ■もひえているから抵抗値及ｔｈは高い値を
示す。この状態で電源スイッチを入れると、ワンショッ
トマルチ■が動作し、このときの抵抗値Ｒｔｈによる１
パルスをトランジスタＱに出力する。このときトランジ
スタＱは一定時間オンしてヒータ＠に電流を流す。First, consider when the ambient temperature is cold. At this time,
Since the thermistor (2) is also missing, the resistance value and th show high values. When the power switch is turned on in this state, one-shot multi-■ will operate, and the resistance value Rth will be
Output a pulse to transistor Q. At this time, the transistor Q is turned on for a certain period of time to allow current to flow through the heater @.

周囲があたたかいときは、抵抗値Ｒｃｈの値が低いから
、ワンショットマルチ＠で出力されるパルス幅はせまい
。よって、ヒータ［株］へ供給される電流は少ない。When the surroundings are warm, the resistance value Rch is low, so the pulse width output by one-shot multi @ is narrow. Therefore, the current supplied to the heater is small.

ゆえに、寒いときにはより多（の電流をヒータ［相］に
供給し、暑いときには少ない電流を供給すること番ζよ
って、検知素子■の熱慣性によるオーバーシュートを防
止できる。かつ、温度検知素子■を、その電流供給のた
めのセンサにしているから、その精度は高い。Therefore, by supplying more current to the heater phase when it is cold and less current when it is hot, it is possible to prevent overshoot due to thermal inertia of the sensing element ■. Since the sensor is used for the current supply, its accuracy is high.

〔発明の効果〕〔Effect of the invention〕

以上の如く本発明によると、外気温にかかわらず、検温
時間をほぼ一定にすることができ、かつ検温時間の短縮
化を図れ、電子体温計の品質向上に寄与することができ
る。As described above, according to the present invention, the temperature measurement time can be kept almost constant regardless of the outside temperature, and the temperature measurement time can be shortened, contributing to improving the quality of electronic thermometers.

尚、本発明は、実施例に示すよろな検温部、演算部、表
示部一体型ではな（、検温部のみが他の構成部分から分
離しているものや表示部のみ分離しているタイプのもの
にでも適用できることはいうまでもない。It should be noted that the present invention is not limited to the integrated type of temperature measurement section, calculation section, and display section shown in the embodiments (i.e., a type in which only the temperature measurement section is separated from other components, or a type in which only the display section is separated). Needless to say, it can be applied to anything.

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は従来例を示す図で、第１図は従来の
電子体温計の外観平面図、ｊ１２１ｓ！２はその内部構
成図、第３図及び第４図は本発明の一実施例を示す図で
、第３図は断面構造図、第４図はその内部構成図、＼１
５図はこの発明の異なる実施例を示す構成図である。 ■・・・押しボタン、■・・・検温部、■・・・表示部
、■・・・検温素子、■・・・サンプリング回路、■・
・・演算部、■・・・表示部、■・・・電源部、■・・
・押しボタンスイッチ。 第３図 ＠４図 第５図1 and 2 are diagrams showing a conventional example, and FIG. 1 is an external plan view of a conventional electronic thermometer, j121s! 2 is an internal configuration diagram of the same, FIGS. 3 and 4 are diagrams showing an embodiment of the present invention, FIG. 3 is a cross-sectional structural diagram, and FIG. 4 is an internal configuration diagram of the same.
FIG. 5 is a configuration diagram showing a different embodiment of the present invention. ■...Push button, ■...Temperature measurement section, ■...Display section, ■...Temperature measurement element, ■...Sampling circuit, ■...
...Arithmetic section, ■...Display section, ■...Power supply section, ■...
·Push-button switch. Figure 3 @ Figure 4 Figure 5

Claims (2)

【特許請求の範囲】[Claims] （１）検知部に設ける検知素子の検出する情報をサンプ
リングし、かつ演算処理して表示部に温度表示する電子
体温計において、検知部にヒータ等の加熱部を設けるこ
とを特徴とする電子体温計。(1) An electronic thermometer that samples information detected by a detection element provided in a detection section, performs arithmetic processing, and displays the temperature on a display section, characterized in that the detection section is provided with a heating section such as a heater. （２）ヒータに供給する電源は、スイッチオンと同時に
通電し、検温開始の前後にはオフすることを特徴とする
第１項記載の電子体温計。(2) The electronic thermometer according to item 1, wherein the power supply to the heater is turned on at the same time as the switch is turned on, and turned off before and after starting temperature measurement.
JP15455584A 1984-07-25 1984-07-25 Electronic clinical thermometer Pending JPS6131932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15455584A JPS6131932A (en) 1984-07-25 1984-07-25 Electronic clinical thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15455584A JPS6131932A (en) 1984-07-25 1984-07-25 Electronic clinical thermometer

Publications (1)

Publication Number Publication Date
JPS6131932A true JPS6131932A (en) 1986-02-14

Family

ID=15586809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15455584A Pending JPS6131932A (en) 1984-07-25 1984-07-25 Electronic clinical thermometer

Country Status (1)

Country Link
JP (1) JPS6131932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173036U (en) * 1985-04-15 1986-10-28
JP2002544513A (en) * 1999-05-18 2002-12-24 アラリス メディカル システムズ インコーポレイテッド Closed loop system for heating the probe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173036U (en) * 1985-04-15 1986-10-28
JP2002544513A (en) * 1999-05-18 2002-12-24 アラリス メディカル システムズ インコーポレイテッド Closed loop system for heating the probe
JP4927260B2 (en) * 1999-05-18 2012-05-09 ケアフュージョン ３０３、インコーポレイテッド Closed loop system for heating the probe

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