JP3518876B2 - Thermal treatment device - Google Patents
Thermal treatment deviceInfo
- Publication number
- JP3518876B2 JP3518876B2 JP25987192A JP25987192A JP3518876B2 JP 3518876 B2 JP3518876 B2 JP 3518876B2 JP 25987192 A JP25987192 A JP 25987192A JP 25987192 A JP25987192 A JP 25987192A JP 3518876 B2 JP3518876 B2 JP 3518876B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- sampling
- target
- heating
- target 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、患部を所定温度で加温
することにより治療を行う温熱治療装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermotherapy device for treating an affected area by heating it at a predetermined temperature.
【０００２】[0002]
【従来の技術】この種の温熱治療（ハイパーサーミア）
装置にあっては、加温中に患部の測温を行って所定の温
度（目標温度）で患部を加温するようにしている。この
目標温度は、加温治療を開始する前に、患部を何℃に加
温するかを決定しておかなければならない。2. Description of the Related Art Hyperthermia of this type (hyperthermia)
In the apparatus, the temperature of the affected area is measured during heating to heat the affected area at a predetermined temperature (target temperature). This target temperature must be decided at what degree the affected area is heated to before heating treatment is started.
【０００３】一方、温熱治療では患部温度の測定は不可
欠なものであるが、常に、測温を行っているというわけ
ではなく、ある時間間隔（例えば１秒とか２秒）をあけ
て測温動作を行っている（以後、この間隔をサンプリン
グ周期と言う）。On the other hand, the measurement of the temperature of the affected area is indispensable in hyperthermia treatment, but the temperature is not always measured, and the temperature is measured at a certain time interval (for example, 1 second or 2 seconds). (Hereinafter, this interval is referred to as a sampling cycle).
【０００４】そして、サンプリング周期ごと測温を行
い、その測温値が目標温度より低い場合は、患部を加温
する動作を行う一方、逆に、高い場合は、加温を停止す
る。この様にして、患部温度が目標温度近辺になるよう
に制御している。図４はこの状態を示している。Then, the temperature is measured for each sampling cycle, and if the measured temperature is lower than the target temperature, the operation of heating the affected area is performed, while if it is higher, the heating is stopped. In this way, the temperature of the affected area is controlled to be near the target temperature. FIG. 4 shows this state.
【０００５】[0005]
【発明が解決しようとする課題】ところで、図４のｃ点
のように、測温値が、目標温度に比較的近い低い温度の
場合は、次のサンプル周期の間中、目標温度を越えても
比較的長く加温され続けるので、かえって目標温度から
大きくかけ離れてしまう。逆に、図４のｄ点のように、
測温値が、目標温度に比較的近い高い温度の場合は、次
のサンプル周期の間中、目標温度を下回っても、加温さ
れないでいる時間が比較的長いので、さらに目標温度よ
り大きく下回ってしまう。しかも、この傾向は、ｃ点や
ｄ点が目標温度に近ければ近い程、顕著なものとなって
いる。By the way, when the temperature measurement value is a low temperature relatively close to the target temperature as shown by point c in FIG. 4, the target temperature is exceeded during the next sampling period. Since it continues to be heated for a relatively long time, it will be far from the target temperature. Conversely, like point d in FIG.
If the measured temperature is a high temperature that is relatively close to the target temperature, even if the temperature falls below the target temperature during the next sampling cycle, the temperature remains unheated for a relatively long time, so it falls below the target temperature. Will end up. Moreover, this tendency becomes more remarkable as the points c and d are closer to the target temperature.
【０００６】本発明は前記課題に着目してなされたもの
で、その目的とするところは、サンプリング周期を適宜
変化させることによって、より目標温度の近辺で適切な
温度制御を行うことができる温熱治療装置を提供するこ
とにある。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a thermotherapy capable of performing appropriate temperature control in the vicinity of a target temperature by appropriately changing a sampling cycle. To provide a device.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る発明は、
患部を加温する加温手段と、前記加温手段で加温される
前記患部の目標温度を設定するとともに、前記目標温度
を含む目標温度範囲を設定する設定手段と、前記患部の
温度を測定可能な温度測定手段と、前記温度測定手段で
測定された測定温度を周期的にサンプリング可能なサン
プリング手段と、前記温度測定手段で測定された測定温
度が前記目標温度範囲内か否かを判別する判別手段と、
前記判別手段の判別結果に基づいて、前記サンプリング
手段のサンプリング周期を目標温度範囲外に対して目標
温度範囲内では短く制御するサンプリング制御手段と、
前記サンプリング制御手段による制御の基で前記サンプ
リング手段でサンプリングされたサンプリング温度と、
前記設定手段の前記目標温度とに基づき、前記加温手段
を制御する加温制御手段と、を具備したことを特徴とす
る温熱治療装置である。また、請求項２に係る発明は、
生体腔内に挿入可能な挿入部と、この挿入部の内部に配
設された加温手段と、この加温手段を前記挿入部の軸中
心に対して偏心して移動可能ならしめる移動手段とを具
備したことを特徴とする請求項１に記載の温熱治療装置
である。The invention according to claim 1 is
A heating means for heating the affected part, a setting means for setting a target temperature of the affected part to be heated by the heating means, and a target temperature range including the target temperature, and a temperature of the affected part are measured. Possible temperature measuring means, sampling means capable of periodically sampling the measured temperature measured by the temperature measuring means, and whether the measured temperature measured by the temperature measuring means is within the target temperature range. Determination means for determining whether or not,
Based on the discrimination result of the discrimination means, the sampling
Target the sampling cycle of the instrument outside the target temperature range
Sampling control means to control short within the temperature range ,
The sump is controlled under the control of the sampling control means.
The sampling temperature sampled by the ring means,
And a heating control means for controlling the heating means based on the target temperature of the setting means. The invention according to claim 2 is
An insertion part that can be inserted into a living body cavity, a heating means disposed inside the insertion part, and a moving means that allows the heating means to move eccentrically with respect to the axial center of the insertion part. The thermotherapy device according to claim 1, wherein the thermotherapy device is provided.
【０００８】[0008]
【実施例】図１は本発明の一実施例に係る温熱治療装置
を示すものである。この装置本体１内には、電磁波を発
振する発振器２、患部加温用アプリケ−タ３、このアプ
リケ−タ３に冷却水を還流させる還流機構４、生体の患
部の温度を測定する温度センサ（例えば熱電対）５に接
続して温度を得る測温部６、表示部７、これらを制御す
る制御部８、この制御部８の設定，操作，及び目標温度
の入力を行う操作部９から成っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a thermotherapy apparatus according to an embodiment of the present invention. Inside the apparatus main body 1, an oscillator 2 that oscillates an electromagnetic wave, an affected area warming applicator 3, a reflux mechanism 4 that circulates cooling water to the applicator 3, and a temperature sensor that measures the temperature of the affected part of the living body ( For example, a temperature measuring unit 6 connected to a thermocouple (5) to obtain a temperature, a display unit 7, a control unit 8 for controlling these, an operation unit 9 for setting and operating the control unit 8 and inputting a target temperature. ing.
【０００９】前記制御部８の機能に基づくその基本的な
制御フロ−を図２を参照して以下に示す。予め、操作部
９により、後述する目標温度や目標範囲を設定し、ま
た、患部のある生体内にアプリケ−タ３を挿入して所定
位置に設置する。開始指令を受けると、測温部６は温度
センサ５の検出信号から患部の温度を求める。そして、
制御部８はその温度が加温前に設定しておいた目標温度
（例えば４３℃）より大きいか小さいかを求め、発振器
２をオフまたはオンし、その加温出力を調節する。つま
り、目標温度より大きい場合には発振器２の出力を停止
し、目標温度より小さい場合には発振器２を出力させ
る。The basic control flow based on the function of the control unit 8 will be described below with reference to FIG. The target temperature and target range to be described later are set in advance by the operation unit 9, and the applicator 3 is inserted into the living body having the affected part and installed at a predetermined position. Upon receiving the start command, the temperature measuring unit 6 obtains the temperature of the affected part from the detection signal of the temperature sensor 5. And
The control unit 8 determines whether the temperature is higher or lower than the target temperature (for example, 43 ° C.) set before heating, turns the oscillator 2 off or on, and adjusts the heating output. That is, the output of the oscillator 2 is stopped when the temperature is higher than the target temperature, and the oscillator 2 is output when the temperature is lower than the target temperature.
【００１０】次に、その測温値が前記目標温度を含む目
標範囲内にあるか否かを調べる。前記目標温度と測温値
の差が、ある値の範囲内にあるかどうかを判断する。こ
こで、目標範囲とは、目標温度近辺の温度のことで、例
えば図３で示すように、目標温度より１℃上の目標上温
（４４℃）と１℃下の目標下温（４２℃）との間に挟ま
れる範囲である。そして、実際の測温値がその目標範囲
内であるとき、サンプリングタイムを１秒とし、目標範
囲の外であるとき、サンプリングタイムを２秒とし、次
の測温が行われるまで待つ。Next, it is checked whether the measured temperature value is within the target range including the target temperature. It is determined whether or not the difference between the target temperature and the measured temperature value is within a certain value range. Here, the target range is a temperature in the vicinity of the target temperature, and as shown in FIG. 3, for example, a target upper temperature (44 ° C.) that is 1 ° C. higher than the target temperature and a target lower temperature (42 ° C.) that is 1 ° C. lower than the target temperature. ) Is the range sandwiched between. Then, when the actual temperature measurement value is within the target range, the sampling time is set to 1 second, and when it is outside the target range, the sampling time is set to 2 seconds, and the process waits until the next temperature measurement is performed.
【００１１】図３はこの様な制御フロ−によって行われ
る加温制御の温度推移である。丸印は測温が行われてい
ることを示し、そのうち白丸は加温続行、黒丸は加温停
止を示す。例えば、治療開始直後、又はａ点では目標範
囲外にある。このａ点では、サンプリング周期が２秒
（Ｔ1）となるのに対し、目標範囲内のｂ点では、１秒
（Ｔ2）である。FIG. 3 is a temperature transition of the heating control performed by such a control flow. The circles indicate that the temperature is being measured, of which the white circles indicate that heating continues and the black circles indicate that heating has stopped. For example, it is outside the target range immediately after the start of treatment or at point a. At point a, the sampling period is 2 seconds (T 1 ), whereas at point b in the target range, it is 1 second (T 2 ).
【００１２】一般に、サンプリング周期が長ければ、長
いほどサンプリング周期前後の温度差は大きくなる。従
って、目標範囲内にあるとき、サンプリング周期を短く
とることにより、目標範囲外に出にくくなり、目標から
外れにくい。また、目標範囲外にあるときサンプリング
周期を長くとることにより、目標温度に急速に近づく。
以上の様に、サンプリング周期を可変とすることによ
り、より確実に目標温度近辺で制御されるという効果が
生じる。Generally, the longer the sampling period, the larger the temperature difference before and after the sampling period. Therefore, when it is within the target range, it becomes difficult to go out of the target range and out of the target by shortening the sampling period. Further, when the temperature is out of the target range, the sampling temperature is made long, so that the temperature rapidly approaches the target temperature.
As described above, by making the sampling cycle variable, the effect of more reliably controlling the temperature around the target temperature is produced.
【００１３】なお、これとは全く逆に、目標範囲外にあ
るとき、サンプリング周期を短くし、範囲内で周期を長
くすることも考えられる。この方式によると、瞬間的な
ノイズの影響を抑えることができるという効果が得られ
る。On the contrary, it is conceivable that the sampling period is shortened and the period is lengthened within the range when it is outside the target range. According to this method, it is possible to obtain the effect of suppressing the influence of instantaneous noise.
【００１４】図５は前記アプリケ−タ３の構成を具体的
に示すものである。すなわち、このアプリケ−タ３は、
生体管腔に挿入可能な挿入部１１を有し、その挿入部１
１の手元部には操作部１２が形成されている。挿入部１
１は中空で先端が閉塞された柔軟なシ−ス１３からな
り、このシ−ス１３の内部には電磁波放射アンテナ１
４、このアンテナ１４に接続された電磁波伝送用ケ−ブ
ル１５、前記アンテナ１４及びケ−ブル１５をその中心
軸から偏心して挿入部１１内に挿通させる複数の偏心用
円板１６、この各円板１６をその外周面の接線方向へ回
転させるための軸１７、アンテナ１４の周辺のシ−ス１
３の表面に配置された複数の温度センサ５、及び挿入部
１１の先端に膨縮自在に取り付けられたバル−ン１９を
有して構成される。FIG. 5 shows a concrete structure of the applicator 3. That is, this application 3
An insertion part 11 that can be inserted into a living body lumen, and the insertion part 1
An operation unit 12 is formed at the proximal portion of the first unit. Insertion part 1
Reference numeral 1 denotes a flexible sheath 13 having a hollow end and a closed tip. Inside the sheath 13, an electromagnetic wave radiation antenna 1 is provided.
4, a cable 15 for electromagnetic wave transmission connected to the antenna 14, a plurality of eccentric discs 16 for eccentricly inserting the antenna 14 and the cable 15 from the central axis thereof and inserting the eccentric discs 16, respectively. A shaft 17 for rotating the plate 16 in the tangential direction of its outer peripheral surface, and a sheath 1 around the antenna 14.
3 has a plurality of temperature sensors 5 arranged on the surface thereof, and a balloon 19 attached to the tip of the insertion portion 11 so as to be expandable and contractible.
【００１５】また、シ−ス１３内は冷却液が還流できる
様に水密に保たれており、円板１６は冷却液が円板１６
を通過できる様に複数の孔２０が設けられている。操作
部１２には、冷却液を注入するための口部２１と、冷却
液を排出するための口部２２を設けている。操作部１２
の末端にはダイヤル２３が取り付けられている。このダ
イヤル２３の中心には前記軸１７が固定され、かつ偏心
した位置にケ−ブル１５が挿通され、ケ−ブル１５の末
端にはコネクタ２４が取り付けられている。Further, the inside of the sheath 13 is kept watertight so that the cooling liquid can flow back.
A plurality of holes 20 are provided so that the holes 20 can pass therethrough. The operation portion 12 is provided with a mouth portion 21 for injecting the cooling liquid and a mouth portion 22 for discharging the cooling liquid. Operation unit 12
A dial 23 is attached to the end of the. The shaft 17 is fixed to the center of the dial 23, the cable 15 is inserted at an eccentric position, and a connector 24 is attached to the end of the cable 15.
【００１６】以上の構成から成るアプリケ−タ１０は図
１に示すようなシステムで使用される。そのシステムに
接続されたアプリケ−タ１０は、挿入部１１を生体管
腔、例えば尿道に挿入される。挿入部１１の先端が膀胱
内に達した時、バル−ン１９を膨脹させ、尿道内にアプ
リケ−タ１０を位置決め固定する。口部２１より冷却液
を供給し、口部２２から排出することで、アプリケ−タ
１０を挿入部１１の表面を冷却しながら、アンテナ１４
から電磁波を放射し、管腔周辺の患部を加温する。ま
た、ダイヤル２３を回転することにより、各円板１６が
ダイヤル２３と連動して回転し、シ−ス１３の内部でア
ンテナ１４がシ−ス１３の中心軸を中心に偏心して移動
する。The applicator 10 having the above structure is used in a system as shown in FIG. The applicator 10 connected to the system has the insertion portion 11 inserted into a living body lumen, for example, the urethra. When the tip of the insertion part 11 reaches the inside of the bladder, the balloon 19 is inflated to position and fix the applicator 10 in the urethra. By supplying the cooling liquid from the mouth portion 21 and discharging it from the mouth portion 22, the antenna 14 is cooled while the applicator 10 cools the surface of the insertion portion 11.
Electromagnetic waves are emitted from to heat the affected area around the lumen. Further, by rotating the dial 23, each disk 16 rotates in conjunction with the dial 23, and the antenna 14 moves inside the sheath 13 while being eccentric about the center axis of the sheath 13.
【００１７】これの移動手段により、前記シ−ス１３自
体を回転させることなく、アンテナ１４がシ−ス１３の
内表面の近い側に位置する方向がより強く加温され、生
体管腔周辺部位に部分的に生じた患部をより効果的に加
温できる。By means of this moving means, the direction in which the antenna 14 is located closer to the inner surface of the sheath 13 is heated more strongly without rotating the sheath 13 itself, and the region around the body lumen is heated. It is possible to more effectively heat the affected part that partially occurs in the.
【００１８】[0018]
【発明の効果】以上説明したように本発明は、患部温度
を測定した測温値が目標温度を含む所定の範囲内にある
場合に測温のサンプリング周期を小さく変化し、その範
囲外にある場合の測温のサンプリング周期を大きく変化
させることによって、より目標温度の近辺で適切な温度
制御を行うことができる。さらに、本発明は、生体腔内
に挿入可能な挿入部の内部に加温手段を配設し、この加
温手段を前記挿入部の軸中心に対して偏心して移動可能
ならしめる移動手段を設けたものであるから、偏位して
部分に生じた患部の状態に応じて加温手段の位置を選択
して最適な加温状態で治療を行うことができる。As described above, according to the present invention, when the temperature measurement value of the temperature of the affected area is within the predetermined range including the target temperature, the sampling cycle of the temperature measurement is changed to a small value and is outside the range. In this case, by appropriately changing the sampling cycle of temperature measurement, it is possible to perform appropriate temperature control in the vicinity of the target temperature. Further, according to the present invention, a heating means is provided inside an insertion part that can be inserted into a living body cavity, and a moving means is provided to move the heating means eccentrically with respect to the axial center of the insertion part. Therefore, it is possible to select the position of the heating means according to the state of the affected part that is eccentrically generated in the part and perform the treatment in the optimum heating state.
【図１】本発明の一実施例に係る温熱治療装置のシステ
ムを概略的に示す説明図。FIG. 1 is an explanatory view schematically showing a system of a thermotherapy device according to an embodiment of the present invention.
【図２】前記温熱治療装置の基本的な制御フロ−を示す
説明図。FIG. 2 is an explanatory diagram showing a basic control flow of the thermotherapy device.
【図３】前記制御フロ−によって行われる加温制御の温
度推移を示す説明図。FIG. 3 is an explanatory diagram showing a temperature transition of the heating control performed by the control flow.
【図４】従前の制御フロ−によって行われる加温制御の
温度推移を示す説明図。FIG. 4 is an explanatory diagram showing a temperature transition of heating control performed by a conventional control flow.
【図５】前記温熱治療装置のアプリケ−タの断面図。FIG. 5 is a sectional view of an applicator of the thermotherapy device.
１…装置本体、２…発振器、３…アプリケ−タ、４…還
流機構、５…温度センサ、６…測温部、８…制御部、９
…操作部、１１…挿入部、１２…操作部、１３…シ−
ス、１４…アンテナ、１６…円板、１７…軸。1 ... Device main body, 2 ... Oscillator, 3 ... Applicator, 4 ... Reflux mechanism, 5 ... Temperature sensor, 6 ... Temperature measuring unit, 8 ... Control unit, 9
... operation section, 11 ... insertion section, 12 ... operation section, 13 ...
Space, 14 ... Antenna, 16 ... Disc, 17 ... Shaft.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61N 1/40 A61N 1/06 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) A61N 1/40 A61N 1/06
Claims (2)
るとともに、前記目標温度を含む目標温度範囲を設定す
る設定手段と、 前記患部の温度を測定可能な温度測定手段と、 前記温度測定手段で測定された測定温度を周期的にサン
プリング可能なサンプリング手段と、 前記温度測定手段で測定された測定温度が前記目標温度
範囲内か否かを判別する判別手段と、 前記判別手段の判別結果に基づいて、前記サンプリング
手段のサンプリング周期を目標温度範囲外に対して目標
温度範囲内では短く制御するサンプリング制御手段と、 前記サンプリング制御手段による制御の基で前記サンプ
リング手段でサンプリングされたサンプリング温度と、
前記設定手段の前記目標温度とに基づき、前記加温手段
を制御する加温制御手段と、 を具備したことを特徴とする温熱治療装置。1. A heating means for heating an affected area, a setting means for setting a target temperature of the affected area to be heated by the heating means, and a target temperature range including the target temperature, A temperature measuring unit capable of measuring the temperature of the affected area, and the measured temperature measured by the temperature measuring unit is periodically sampled.
A sampling means capable of pulling, a determination means for determining whether or not the measured temperature measured by the temperature measurement means is within the target temperature range, and the sampling based on the determination result of the determination means.
Target the sampling cycle of the instrument outside the target temperature range
Within the temperature range, the sampling control means is controlled to be short, and the sampling control means controls the sampling
The sampling temperature sampled by the ring means,
A heating control means for controlling the heating means based on the target temperature of the setting means;
入部の内部に配設された加温手段と、この加温手段を前
記挿入部の軸中心に対して偏心して移動可能ならしめる
移動手段とを具備したことを特徴とする請求項１に記載
の温熱治療装置。2. An insertion part which can be inserted into a living body cavity, a heating means arranged inside the insertion part, and a heating means which is eccentrically movable with respect to an axial center of the insertion part. The hyperthermia treatment apparatus according to claim 1, further comprising: moving means for tightening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25987192A JP3518876B2 (en) | 1992-09-29 | 1992-09-29 | Thermal treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25987192A JP3518876B2 (en) | 1992-09-29 | 1992-09-29 | Thermal treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06105919A JPH06105919A (en) | 1994-04-19 |
| JP3518876B2 true JP3518876B2 (en) | 2004-04-12 |
Family
ID=17340115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25987192A Expired - Fee Related JP3518876B2 (en) | 1992-09-29 | 1992-09-29 | Thermal treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3518876B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022092220A1 (en) * | 2020-10-29 | 2022-05-05 | 京セラ株式会社 | Antenna device |
| CN113625801B (en) * | 2021-09-03 | 2022-12-27 | 罗定职业技术学院 | Temperature control method of heating furnace |
-
1992
- 1992-09-29 JP JP25987192A patent/JP3518876B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06105919A (en) | 1994-04-19 |
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