JPH0225128B2 - - Google Patents
Info
- Publication number
- JPH0225128B2 JPH0225128B2 JP62227743A JP22774387A JPH0225128B2 JP H0225128 B2 JPH0225128 B2 JP H0225128B2 JP 62227743 A JP62227743 A JP 62227743A JP 22774387 A JP22774387 A JP 22774387A JP H0225128 B2 JPH0225128 B2 JP H0225128B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature sensing
- electromagnetic waves
- resistance
- sensing element
- temperature
- 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.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000001514 detection method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009217 hyperthermia therapy Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation-Therapy Devices (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はマイクロ波等の電磁波中に任意に配
設しても温度の誤検出や電磁波の反射を生じない
温度検知装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temperature detection device that does not cause erroneous temperature detection or reflection of electromagnetic waves even if it is arbitrarily placed in electromagnetic waves such as microwaves.
例えばマイクロ波を用いて人間の体温を41℃〜
43℃に温ためてガン細胞を破壊して治療するいわ
ゆるハイパサーミア（Hyperthermia）療法にお
いては、人体に温度検知装置を埋設して実際値を
計測しつつ有効にガン細胞のみを破壊する必要が
ある。この際温度検知装置はマイクロ波によつて
自己発熱したり、或いは又マイクロ波を反射して
しまつては治療効率を低めてしまうので好ましく
ない。
For example, using microwaves to measure human body temperature from 41℃ to
In so-called hyperthermia therapy, which destroys cancer cells by heating the body to 43 degrees Celsius, it is necessary to embed a temperature sensing device in the human body to measure the actual temperature and effectively destroy only cancer cells. In this case, it is not preferable for the temperature detection device to generate heat by itself due to the microwaves, or to reflect the microwaves, since this will reduce the therapeutic efficiency.
そこで発明者はこのような用途に適した温度検
知装置を得るべく鋭意研究を重ねた結果、電気的
温度検知素子のリード部を極力短くし、高抵抗導
電体によつて電気的温度検知素子の温度に比例す
る電気量を取り出すようにすれば、良好な結果が
得られることをつきとめた。従つてこの発明は、
電磁波中に任意に配設しても温度の誤検出や電磁
波の反射を生じない温度検知装置を提供すること
を目的とする。
Therefore, the inventor conducted intensive research in order to obtain a temperature sensing device suitable for such uses. As a result, the lead portion of the electrical temperature sensing element was made as short as possible, and a high resistance conductor was used to connect the electrical temperature sensing element. They found that good results could be obtained by extracting an amount of electricity that was proportional to the temperature. Therefore, this invention
It is an object of the present invention to provide a temperature detection device that does not cause erroneous temperature detection or reflection of electromagnetic waves even when arbitrarily placed in electromagnetic waves.
このためこの発明によれば、電気的温度検知素
子と、この温度検知素子に導電接続される少なく
とも二条の高抵抗導電体（以下リード部という）
とを備え、前記高抵抗導電体は、外周に弗素樹脂
被覆を施した高抵抗金属細線からなり、これらの
複数が電磁波の真空中における波長の1/40以下の
ピツチをもつてより合せられてなる温度検知装置
を形成する。
Therefore, according to the present invention, there is provided an electrical temperature sensing element and at least two high resistance conductors (hereinafter referred to as lead parts) conductively connected to the temperature sensing element.
The high-resistance conductor is made of thin high-resistance metal wires coated with fluororesin on the outer periphery, and a plurality of these wires are twisted together with a pitch of 1/40 or less of the wavelength of electromagnetic waves in vacuum. A temperature sensing device is formed.
高抵抗導電体は、金属細線の外周に弗素樹脂を
被覆してなるため、人体組織に接してもほとんど
拒絶反応を生じない。
Since the high-resistance conductor is made by coating the outer periphery of a thin metal wire with a fluororesin, it hardly causes any rejection reaction even when it comes into contact with human tissue.
高抵抗金属細線は外周を被覆され、患部を加熱
する電磁波の真空中における波長の1/40以下のピ
ツチでより合せてあるため電磁波を反射せず、治
療を害することが無い。 The high-resistance thin metal wires are coated on the outer periphery and twisted at a pitch of less than 1/40 of the vacuum wavelength of the electromagnetic waves that heat the affected area, so they do not reflect electromagnetic waves and do not harm the treatment.
リード部は高抵抗であるため、自己発熱等によ
る温度の誤検出が無くなる。また、電気的温度検
知素子の外周部を弗素樹脂体によつて液密封止し
ておくと、人体組織による温度検知に対する悪影
響を阻止できると共に人体組織に対する異和反応
を阻止できるので好都合である。 Since the lead part has high resistance, there will be no erroneous temperature detection due to self-heating or the like. Furthermore, it is advantageous to seal the outer circumference of the electrical temperature sensing element liquid-tightly with a fluororesin material, since it is possible to prevent the adverse effects of human tissue on temperature detection and to prevent any abnormal reaction to the human tissue.
次に実施例に基づいてこの発明を更に詳細に説
明する。
Next, the present invention will be explained in more detail based on examples.
図はこの発明による実施例を示す温度検知装置
１の概念的斜視図である。この場合電気的温度検
知素子としてのサーミスタ２の両金属接続部３
は、外周に弗素樹脂被覆４を施した一対の高抵抗
金属細線５と半田６によつて導電接続されてい
る。この場合特筆すべきは、高抵抗金属細線５
は、真空中の電磁波の波長の1/40以下のピツチＱ
をもつてより合せられて、電磁波の反射を阻止さ
れていることである。 The figure is a conceptual perspective view of a temperature sensing device 1 showing an embodiment according to the present invention. In this case, both metal connections 3 of the thermistor 2 serve as electrical temperature sensing elements.
is conductively connected by solder 6 to a pair of high-resistance thin metal wires 5 whose outer peripheries are coated with fluororesin 4 . What should be noted in this case is the high resistance thin metal wire 5
is a pitch Q that is less than 1/40 of the wavelength of electromagnetic waves in vacuum.
The fibers are twisted together to prevent the reflection of electromagnetic waves.
この実施例において高抵抗金属細線５は
SUS316外径50μm線に0.3μmの金メツキを施して
半田付着性を改良したものを用い、電気抵抗値は
長さ300mmで一本100Ω、往復で200Ωであつた。
サーミスタ２は20℃で11MΩの負性抵抗形を用い
た。また温度検知素子部およびリード部は弗素樹
脂体によつて液密封止した。このような構成によ
り、完成品外径0.8mmの温度検知装置を得、実験
の結果良好な結果を得た。 In this embodiment, the high resistance thin metal wire 5 is
SUS316 wire with an outer diameter of 50 μm and gold plating of 0.3 μm to improve solder adhesion was used, and the electrical resistance was 100 Ω for each wire and 200 Ω for a round trip with a length of 300 mm.
Thermistor 2 used a negative resistance type of 11 MΩ at 20°C. Further, the temperature sensing element portion and the lead portion were liquid-tightly sealed with a fluororesin body. With this configuration, we obtained a temperature sensing device with a finished product outer diameter of 0.8 mm, and obtained good results in experiments.
以上の通りこの発明によれば、電磁波中に任意
に配置しても電磁波の反射や温度の誤検知を生ず
ることのない温度検知装置が得られ、しかも人体
組織に拒絶反応を生ぜしめないものとすることが
できるばかりか、電子レンジその他を用いて特別
の遮蔽構造を施すことなく温度検知することがで
き、医療上ばかりでなく産業上にも多くの利益を
もたらすことができる。
As described above, according to the present invention, it is possible to obtain a temperature detection device that does not cause reflection of electromagnetic waves or false detection of temperature even when placed arbitrarily in electromagnetic waves, and also does not cause rejection reactions in human tissue. Not only can the temperature be detected using a microwave oven or the like without a special shielding structure, it can bring many benefits not only medically but also industrially.
尚この発明は実施例に限定されるものではな
く、電気的温度検知素子として熱電対その他の感
温素子を用いることができ、またリード部を４本
の各各絶縁された高抵抗導電体とし２本を電流を
通す導体に、他の２本を電圧を測定する導体とし
て使用する、いわゆる４端子方法で使用してもよ
いなど、この発明の思想を含む構成において種々
変更できることは勿論である。 Note that the present invention is not limited to the embodiments, and a thermocouple or other temperature sensing element may be used as the electrical temperature sensing element, and the lead portion may be formed of four insulated high resistance conductors. Of course, various modifications can be made to the configuration that incorporates the idea of this invention, such as using a so-called four-terminal method in which two wires are used as conductors for passing current and the other two wires are used as conductors for measuring voltage. .
第１図はこの発明による温度検知装置の概念的
斜視図である。
１：温度検知装置、２：サーミスタ、４：弗素
樹脂被覆、５：高抵抗金属細線、Ｑ：ピツチ。
FIG. 1 is a conceptual perspective view of a temperature sensing device according to the present invention. 1: Temperature detection device, 2: Thermistor, 4: Fluororesin coating, 5: High resistance thin metal wire, Q: Pitch.
Claims (1)
導電接続される少なくとも二条の高抵抗導電体と
を備え、前記高抵抗導電体は、外周に弗素樹脂被
覆を施した高抵抗金属細線からなり、これらの複
数が電磁波の真空中における波長の1/40以下のピ
ツチをもつてより合せられてなる温度検知装置。1 comprising an electrical temperature sensing element and at least two high-resistance conductors conductively connected to the temperature sensing element, the high-resistance conductor being made of a high-resistance thin metal wire coated with a fluororesin on the outer periphery; A temperature sensing device consisting of a plurality of these twisted together with a pitch of 1/40 or less of the wavelength of electromagnetic waves in a vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62227743A JPS63198838A (en) | 1987-09-10 | 1987-09-10 | Temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62227743A JPS63198838A (en) | 1987-09-10 | 1987-09-10 | Temperature detector |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56151848A Division JPS5852534A (en) | 1981-09-24 | 1981-09-24 | Temperature detecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198838A JPS63198838A (en) | 1988-08-17 |
| JPH0225128B2 true JPH0225128B2 (en) | 1990-05-31 |
Family
ID=16865675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62227743A Granted JPS63198838A (en) | 1987-09-10 | 1987-09-10 | Temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63198838A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02147104U (en) * | 1989-05-12 | 1990-12-13 |
-
1987
- 1987-09-10 JP JP62227743A patent/JPS63198838A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63198838A (en) | 1988-08-17 |
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