JP3285899B2 - Electromagnetic heat therapy equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic heat treatment apparatus for irradiating an affected part with an electromagnetic wave to perform a heat treatment.

[0002]

2. Description of the Related Art Conventionally, there has been known an electromagnetic wave thermotherapy apparatus for irradiating an affected part with an electromagnetic wave to heat the affected part so as to perform a thermal treatment. As described in, for example, U.S. Pat. No. 4,884,580, an electromagnetic wave is oscillated from an electromagnetic wave generator as an electromagnetic wave generating means, and a target temperature is set in advance before heating the affected part. The electromagnetic wave output is controlled so that the affected part is heated to the target temperature.

[0003]

However, in the conventional electromagnetic wave thermotherapy apparatus, the target temperature set before heating cannot be changed after the start of heating. In other words, in order to perform a safe and efficient treatment depending on the condition of the affected part and the condition of the patient, if it is desired to change the set target temperature, it is not possible to change the set target temperature without interrupting the heating once. Had become.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a safe and efficient heat source capable of changing a set target temperature at any time without interrupting heating. An object of the present invention is to provide an electromagnetic wave thermotherapy device capable of performing treatment.

[0005]

In order to solve the above-mentioned problems, an electromagnetic wave thermotherapy apparatus according to the present invention has an electromagnetic wave generating means for generating an electromagnetic wave for heating a portion to be heated, and an electromagnetic wave generating means for generating the electromagnetic wave . Irradiating means for irradiating the portion to be heated with the electromagnetic wave, and for adjusting the temperature of the portion to be heated
And the target temperature setting means for setting a target temperature of the irradiated hand
Temperature measuring means for measuring the temperature of the portion to be heated, which is heated by the electromagnetic waves irradiated in the step, and setting the target temperature
The target temperature set by the means, and the temperature measuring means
Output control means for controlling the output of the electromagnetic wave generation means based on the measured temperature, and the target temperature setting means
For setting a heating limit temperature exceeding the target temperature of
Adding temperature output means for outputting the adding temperature, and the adding temperature
The added temperature output by the output means and the target temperature setting.
The electromagnetic wave generating means based on the target temperature of the
Stop temperature calculation to calculate the stop temperature for stopping the output of
Output means and the stop calculated by the stop temperature calculating means
Based on the temperature and the measured temperature of the temperature measuring means,
A stop system that performs control to stop the output of the electromagnetic wave generation means
And control means.

[0006]

[0007]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1A, an electromagnetic wave thermotherapy device 1 of the present embodiment is a microwave thermotherapy device for performing thermotherapy by microwaves, and includes a device main body 2,
A data processing device 3 for performing data processing, an MW applicator 8 inserted into a living body and emitting microwaves (hereinafter, referred to as MW) to a heated portion, and cooling water in the MW applicator 8; A cooling water recirculation device for recirculating water.

FIG. 2 shows an overall circuit configuration of the system of the electromagnetic wave thermotherapy apparatus 1. As shown in the figure, the electromagnetic wave thermotherapy device 1 includes a temperature sensor unit 102, a temperature measurement unit 103, a temperature control unit 104, a temperature setting input unit 105 for setting and inputting a target temperature, and a measured temperature display unit 10.
6, a temperature control system 101 composed of a set temperature display unit 107, a relay circuit unit 108 for controlling the operation timing of the system of the electromagnetic wave thermotherapy device 1, an MW oscillation unit 109 for outputting a MW wave, and a temperature. It is mainly composed of a data processing unit 3 for monitoring and recording data, a timer unit 136, and an end notification unit 141 for notifying the end of the operation. All circuits except the power supply (commercial) 100 are housed.

The temperature information of one or more channels (three channels in this embodiment) obtained by the temperature sensor unit 102 is converted into a temperature signal by a temperature measuring unit 103. These temperature signals are taken into the data processing unit 3 and subjected to data processing. At least one channel signal of the temperature signals is compared with the set temperature from the temperature setting input unit 105 in the temperature control unit 104. . Then, the temperature control unit 104 outputs a MW output signal and a danger stop signal to the relay circuit unit 108 based on the comparison result.

On the other hand, the insulating transformer 111 has at least two or more (three in the present embodiment) so as to supply an output voltage such that the output of the MW becomes a predetermined value.
Output terminal. The insulating transformer 111 can select one of these output terminals and apply a voltage to the step-up transformer 112. The MW oscillating unit 109 includes a voltage stepped up by the step-up transformer 112 and the step-down transformer 1.
It operates with the voltage stepped down at 13. The relay circuit unit 108 includes an insulating transformer 111 and a step-up transformer 1.
The power relay 114 during the period 12 is controlled to turn on / off the output of the MW.

Next, the temperature control section 104 will be described with reference to FIG. FIG. 3A is a block diagram of the temperature control unit 104, and FIG. 3B is a time chart thereof. As shown in FIG. 3A, the temperature control unit 10
Reference numeral 4 denotes a signal amplifying section 115 which receives a temperature signal from the temperature measuring section 103 and amplifies the temperature signal, an insulating section 116 for insulation, and sets a temperature by an input signal from the temperature setting input section 105. Temperature setting section A12
3, a comparison unit A117 that compares the set temperature set by the temperature setting unit A123 with the measured temperature (one channel) and outputs a signal, and a timing of switching output signals.
That is, the adjustment unit 124 that adjusts the set target temperature allowable range a (see FIG. 3B) and the temperature setting unit A
Temperature setting section B for automatically setting the temperature by means of 123
118, a comparison unit B119 that compares the set temperature set in the temperature setting unit B118 with the measured temperature (1 channel) and outputs a signal, and an output signal from the comparison unit A117, and outputs the MW output signal. The MW output signal output unit 120 for outputting, the danger signal output unit 121 which receives the output signal from the comparison unit B119 and outputs a danger signal, and the measured temperature data (3 channels) to the data processing device 3
And a temperature data output unit 122 for transmitting the data. Note that the temperature data of one channel for performing temperature control is displayed on the measured temperature display unit 106.

Next, the operation of the temperature control unit 104 will be described. The three-channel temperature signal from the temperature measuring unit 103 is amplified / insulated or amplified only in the signal amplifying unit 115 and the insulating unit 116, and one channel of the temperature signal is input to the comparing unit A117 and the comparing unit B119. It is displayed on the measured temperature display unit 106. on the other hand,
The temperature setting unit A123 sets a target temperature based on an input signal from the temperature setting input unit 105, and sends an output signal of the temperature setting to the comparison unit A117.

The output of the comparison unit A117 is determined by the above two input signals, ie, the temperature signal from the temperature measurement unit 103 and the output signal from the temperature setting unit A123. 1
20.

Output signal switching timing (HIG
H, LOW timing), that is, the allowable range a of the target temperature is set by the adjustment unit 124. As shown in FIG. 3B, HIGH and LOW are switched between a width a ° C. set by the adjustment unit 124 with the target temperature being substantially at the center.

Temperature setting section A (target temperature setting means) 123
Is input to the comparison section A117 (output control means) and the temperature setting section B118 (stop temperature calculation means). Warm
The temperature setting unit B118 sets a temperature obtained by adding a temperature difference (addition temperature) b ° C. to the target temperature set by the temperature setting unit A123 as a dangerous temperature (stop temperature) and compares the signal with a comparison unit B11.
9 is output. For example, when the target temperature is 40 ° C. , a heating limit temperature exceeding the target temperature is set.
B = 15 ° C. with the additional temperature output means for outputting the additional temperature
(Additional temperature), the dangerous temperature is automatically set to 5
Set to 5 ° C. Further, when the target temperature is slid to 50 ° C. by the temperature setting input unit 105, the dangerous temperature automatically increases. At this time, the dangerous temperature is set so as to increase by half of the target temperature increase (10 ° C.), that is, stay at 60 ° C. Of course, it is possible to change this rate of increase.

As described above, the signal of the temperature set in the temperature setting unit B118 is transmitted to the comparison unit B119 (stop control unit).
Column) . The output of the comparison unit B119 is determined by the measured temperature (one channel) and a signal from the temperature setting unit B, and is a dangerous stop signal output unit 1 as a signal for controlling a dangerous stop.
21. The measured temperature data is output from the temperature data output unit 122 for all channels including one used for temperature control.

Next, the relay circuit section 108 will be described with reference to FIGS. FIG. 4 shows the relay circuit unit 1.
08 is a block diagram, and FIG. 5 is a time chart thereof. As shown in FIG. 4, the relay circuit unit 108 includes:
MW output signal input section 127 and danger stop signal input section 128
, A danger stop signal holding unit 129 for holding a danger stop signal, a MW output prohibition unit 130 for prohibiting MW output, and a magnetron 109 (see FIG. 6) as an MW oscillation unit. A magnetron control contact section 131 including a plurality of contacts to be controlled, a heating start signal holding section 132 for holding a heating start signal, and an _Fsw contact section 133 that operates in conjunction with a foot switch ( _Fsw ) 143.
And an R _sw contact 134 that operates in conjunction with a reset switch (R _sw ) 144, a timer controller 135 that generates a constant pulse regardless of the time the switch is pressed, and controls a timer, and a timer 136. A timer control contact section 137 for controlling, a magnetron ON / OFF control section 138, a start / stop of heating and a data processing section 1
10 and an _Fsw contact point 140 for interlocking the _Fsw .

Next, the operation of the relay circuit unit 108 will be described. MW output signal output unit 1 in temperature control unit 104
20 and the signals output from the danger stop signal output unit 121 are output from the MW output signal input unit 127 and the danger stop signal input unit 1 of the temperature signal input unit 126 in the relay circuit unit 108.
28.

When a signal is input into the danger stop signal input section 128 even for a moment, the danger stop signal is held in the danger stop signal holding section 129, and one of the contacts of the magnetron control contact section 131 is opened by the MW output prohibition section 130. Then, the dangerous temperature display section 145 turns on. All other contacts are closed. When the danger stop signal is held in the danger stop signal holding unit 129, the MW is output even though the MW output signal output unit 120 outputs an output signal as shown in FIG. Not done. In this case, the output of the heating start signal is also stopped, but the reset switch (R _sw ) 14
4 to return to the initial state, foot switch (F _sw ) 1
43 or START / STOP switch (P _sw ) 1
By pressing the button 42, the output of the heating start signal is restarted.

When an ON signal from the MW output signal output section 120 is input to the MW output signal input section 127, one of the contacts of the magnetron control contact section 131 is closed. Also, S
When the TART / STOP switch (P _sw ) 142 or the foot switch (F _sw ) 143 is pressed, the F _sw 143 becomes F _sw
The fact that the switch has been pressed is transmitted to the timer control unit 135 via the contact point 133.

The timer control section 135 outputs one pulse irrespective of the pressing time of each switch. That is, it is determined that the button has been pressed once as long as the button is kept pressed.
The output signal of the timer control unit 135 opens and closes the contacts of the timer control contact unit 137, so that the timer unit 136 can be operated and the end notification unit 141 can notify the end of heating by light or sound. it can.
Further, the magnetron ON / OFF control section 138 closes the contact of the magnetron control contact section 131 by the operation of the timer control section 135 and the timer control contact section 137.

When P _sw 142 or F _sw 143 is pressed, a signal for holding the heating state is output by the heating start signal holding section 132, and the heating state of the timer control contact section 137 is held.

Magnetron ON / OFF control unit 138
_Fsw is linked to the start / stop of heating.
A signal is also output to the interlock control unit 139, whereby the F
The control signal from the _sw interlocking contact section 140 is transmitted to the signal cable 31
The data is sent to the data processing unit 3 via (see FIG. 1B), and is linked with the timing at which the data of the data processing unit 3 is fetched.

When the reset switch (R _sw ) 134 is pressed, the heating start signal holding unit 132 and the timer control unit 13
5 and the F _sw interlocking control unit 139 are reset. As a result, the timer unit returns to the initial state, and the heating state and the temperature measurement state of the data processing unit 3 end.

The magnetron control contact 131 is
During the set time of the timer, the MW output signal input unit 1
27, when the ON signal from the MW output signal output unit 120 is input and the contacts are closed, and further, the contacts are closed by a signal from the magnetron ON / OFF control unit 138, that is, all three contacts are closed. By operating the power relay 114 for the first time, microwaves can be oscillated from the MW oscillating unit. In FIG. 5, the timer control contact A is
It is the part that controls the timer time, and the timer control contact B
Is the part responsible for interrupting the timer. In FIG. 5, the first stop of the MW output is caused by the heating temperature reaching the upper limit of the target temperature. Next, an arrangement configuration of main parts in the apparatus main body 2 will be described with reference to FIG.

Reference numeral 201 denotes a front panel of the apparatus main body 2. As shown in FIG. 1A, the front panel unit 201 has a power ON / OF of the apparatus main body 2.
A main switch 202 for performing F, an emergency stop switch 203 for shutting off the power supply in an emergency and stopping the oscillation of the MW, a timer unit 136 for stopping the output of the MW after a treatment time (timer time) has elapsed, M that turns off when MW output is stopped and displays MW oscillation state
A W power lamp 205, a set temperature display unit 107, a measured temperature display unit 106, a temperature setting input unit 105, an MW output connector 209 for outputting MW to the outside of the apparatus main body 2, and the like are attached. Although not shown, various components described above are also attached.

The suffix 206 is a rear panel portion.
As shown in FIG. 1B, the rear panel unit 206 includes a power input inlet 207 for inputting the commercial power supply 100 to the apparatus main body 2, an MW output switch 208 for switching the MW output, and a power supply for the external device. And a breaker 210 that shuts off the power supply from the power supply output unit 209 when an abnormal current flows to a device connected to the outside. Of course, although not shown, it goes without saying that the various components described above are also attached.

Further, inside the apparatus main body 2, the apparatus main body 2
Power line filter 211 for reducing noise coming into the commercial power supply 100 input to the
11, step-up transformer 112, step-down transformer 113, MW
Oscillator 109, power supply circuit 213 for generating a voltage required to supply power to circuits inside device main body 2 and the like, temperature control unit 104, temperature measurement unit 103, and relay circuit unit 108
And a power relay 114 having the following.

Next, the arrangement of each part in the apparatus main body 2 and the wiring between the parts will be described. First, solid lines shown in the apparatus main body 2 indicate wiring on the primary side, and are concentrated on the left side of the apparatus main body 2.

A power line filter 211 is disposed in front of the power input inlet 207. The power input inlet 207 and the power line filter 211 are arranged in front of the power input inlet 207.
Are connected by electric wires.

A main switch 202 and an emergency stop switch 203 are mounted on the left side of the front panel section 201. The power line filter 211 and the main switch 202 are connected to each other, and the main switch 202 and the emergency stop switch 203 are connected by electric wires. At the same time, the emergency stop switch 203 and the insulating transformer 111 are also connected by an electric wire. The insulating transformer 111 is disposed immediately in front of the power line filter 211.

That is, the power on the primary side is input to the power input inlet 207 and the power line filter 21
1, input to the isolation transformer 111 via the main switch 202 and the emergency stop switch 203. The alternate long and short dash line shown in the apparatus main body 2 indicates the wiring on the secondary side, and is concentrated on the right side of the apparatus main body 2.

The power on the secondary side is all output from the insulating transformer 111. If necessary, a breaker 210, a power supply output unit 209, a MW output switch 208, a power relay 114, a power supply circuit 212, a step-up transformer 112,
The output is supplied to the step-down transformer 113, and the outputs of the step-up transformer 112 and the step-down transformer 113 are input to the MW oscillation unit 109.

The components of the front panel section 201 are supplied with the output of the insulating transformer 111 and the output of the power supply circuit 212. Further, the temperature control unit 104, the temperature measurement unit 103, and the relay circuit unit 108 are mounted on the power supply circuit 212, and power is supplied from the power supply circuit 212. The MW oscillating unit 109 is disposed in front of the insulation transformer 111, and all components on the secondary side are isolated from the insulation transformer 111.
And the MW oscillating unit 109 is disposed on the right side.

By arranging the parts in the apparatus main body 2 and configuring the wiring between the parts as described above, the wiring on the primary side and the wiring on the secondary side are crossed or approached. The noise on the primary side does not directly get on the line on the secondary side. This also improves the voltage resistance between the primary side and the secondary side and prevents leakage current between the primary side and the secondary side lines. A short circuit between the side and the secondary side, that is, the patient and the circuit, can be prevented.

Next, the MW oscillator 109 will be described with reference to FIG. As shown in FIG. 7A, the MW oscillating unit 109 includes a magnetron main body 215 that oscillates a MW having a predetermined frequency, and a MW output from the magnetron main body 215.
Coaxial cable 21 to be taken out and sent to applicator 8
6, an insulating member 217 for attaching the magnetron main body 215 to the apparatus main body 2, a screw 218 for fixing the magnetron main body 215 and the insulating member 217, and an insulating member 21
219 (FIG. 7B) for fixing the device 7 and the apparatus main body 2
See).

A counterbore 220 is provided on the insulating member 217, and the magnetron main body 215 is fixed with a screw 218 passing through the counterbore 220, and as shown in FIG. Screw 21 for body 2
9 is fixed.

The distance a in the figure is the spatial distance between the screw 218 and the apparatus main body 2, and the distances b and c are the distance between the screw 220 and the magnetron main body 215.
/ SC62A according to the medical safety standard.

By fixing the MW oscillation section 109 to the apparatus main body 2 as described above, the magnetron main body 215 is insulated from the apparatus main body 2. This ensures that the part that comes into contact with the patient is insulated from the ground, so that even if the applicator 8 is damaged, the patient does not get an electric shock.

Next, the apparatus main body 2, the data processing apparatus 3, the applicator 8,
The details of the cooling water reflux device and the connection between these devices will be described with reference to FIG.

As shown in FIG. 1A, an MW output terminal 209 for outputting MW and a thermocouple input terminal 6 for connecting the thermocouple sensor 9 are provided on a front panel 201 of the apparatus main body 2. Is provided. The MW output terminal 209 has
The applicator 8 is connected directly or via the MW relay cable 7. One or more (three in this embodiment) thermocouple sensors 9 are connected to the thermocouple input terminal 6 directly or via a compensating lead.

The measured temperature of one channel of the thermocouple sensor 9 is displayed on the measured temperature display section 106. The set temperature display unit 107 displays a target temperature to be heated. The target temperature can be set in the temperature setting input unit 105. Further, the heating time is displayed and set by the timer 136.

The start / stop of the heating is started / started.
This is performed by a P switch 142 (hereinafter, P _sw ) or a foot switch 143 (hereinafter, F _sw ). Foot switch 143
Is connected to the foot switch terminal 16.

The front panel 20 of the apparatus body 2
1 includes a reset switch 144 (hereinafter, R _sw ) for resetting the timer 136 and returning the apparatus 1 to a standby state;
MW POWER that lights up when MW is output
There are provided a lamp 205, an end lamp 19 which is turned on when the heating time set by the timer 136 ends, and a danger lamp 20 which is turned on when the danger temperature is reached or when the thermocouple sensor 9 is disconnected. . An emergency stop switch 203 for urgently stopping the entire system
(Hereinafter, E _sw ) and the main switch 202 of the apparatus main body 2
(Hereinafter, M _sw ) is provided.

As shown in FIG. 1B, electric power from a power supply (commercial) 100 is supplied to the back of the apparatus main body 2.
A power input inlet 207 is provided, and the power input inlet 207 is connected to a three-pin power cable 24. The power from the power source (commercial) 100 is output from the power output inlet 221 as a service power source for the data processing device 3 after passing through the insulating transformer 111, and is sent to the data processing device 3 via the power cable 26.

The fuse 27 is provided for the line of the power supply (commercial) 100, and the breaker 210 is provided for the service power supply.
Is provided. The MW output is switched by a MW output switch 208. Further, data from the apparatus main body 2 is transmitted to the data processing unit 3 via the signal output terminal 30 and the signal cable 31 connected to the signal output terminal 30. Next, a case in which thermal treatment is performed using the electromagnetic wave thermal treatment apparatus 1 will be described with reference to FIGS. 1 and 8.

The output of the MW can be switched in at least two or more steps by a MW output changeover switch 208 (see FIG. 1), and the MW is emitted from the antenna section 32 near the tip of the applicator 8 as shown in FIG. Is done. For example, in transurethral frontal hyperthermia treatment (FIG. 8) in which the frontal line is warmed transurethrally, the distal end of the applicator 8 is attached to the distal end of the applicator 8 so that the antenna 32 can be fixed at the position of the frontal line 33. A balloon 35 is provided, and the applicator 8 is positioned and fixed in the bladder 34 by inflating the balloon 35.

In the transurethral frontal hyperthermia treatment,
It is necessary to prevent the burn of the urethral mucosa 36 at the same time as the heating of the prostatic line 33. In order to prevent this burn, cooling water is circulated through the applicator 8. The cooling water circulating device 4 circulates cooling water in the applicator 8 and uses a roller pump or an infusion set to set a constant amount, for example, 7 ml / m.
In cooling water can be recirculated. Of course, it is possible to change the flow rate during heating. By heating while cooling, the mucous membrane 36 in contact with the applicator 8 is heated.
Can be lowered, and the temperature inside the front line 33 can be raised.

In order to control the front line 33 to a certain temperature,
The thermocouple sensor 9 is built in the applicator 8 near the antenna 32. For example, one of the sensors 9 is located at the center of heating and the other is located at the external sphincter 37. The thermocouple sensor 9 is connected to the thermocouple input terminal 6, and one channel of the thermocouple input terminal 6 is used for control. That is, temperature control is performed by the temperature of the thermocouple 9 connected to one channel. The measurement temperature of this one channel is measured
The temperature can be constantly monitored on the temperature display unit 106 . For example, a thermocouple 9 attached near the heating center is connected to the one channel, and a thermocouple 9 attached near the external sphincter is connected to the second or third channel. On the other hand, the control temperature is set by rotating the temperature setting input unit 105. The target temperature is displayed on the set temperature display section 107. The target temperature may be set by looking at the set temperature display section 107.

For example, if the target temperature is 39 ° C., the annular flow rate is 7 ml / m
In, when heated at a MW output of 30 W, when the surface temperature of the mucous membrane 36 is 39 ° C., the front line internal temperature is heated to 42 to 43 ° C. The temperatures of channels 1 to 3 can be monitored in the data processing device 3 by using the current temperature as a number and the time change as a graph.

The heating time is set by the timer 136, and the heating is started by P _sw 142 or F _sw 143. If you press P _sw 142 or F _sw 143 before the end of the set time,
Heating is interrupted. _Pressing P _sw 142 or F _sw 143 again resumes heating with the timer continued. When the MW is output, the MW POWER lamp 205 indicating the MW is turned on. When the temperature of the temperature measuring section (1 channel) reaches the target temperature, the MW output is turned off and the MW POWER
The lamp 205 turns off. When the set time ends, the end lamp 19 is turned on and the output of the MW is stopped. When reheating or returning the timer 136 to the initial state and heating is desired, press R _sw 144 and press P _sw 142 or F _sw
Press 143.

By observing the condition of the patient and the temperature rise after the start of heating, if the set temperature is to be changed in the middle of the heating, the temperature is not interrupted, but is checked on the set temperature display unit 107 while checking the temperature. It can be changed by the setting input unit 105.

When the dangerous temperature is reached, the apparatus main body 2
Stop output of This dangerous temperature is automatically set simultaneously with the setting of the target temperature. For example, if the target temperature is 40 ° C,
If the temperature control circuit inside the apparatus main body 2 is set so that the dangerous temperature becomes 55 ° C., if the measured temperature (one channel) becomes 55 ° C. or higher, the apparatus main body 2 is heated further. The output of the MW is completely stopped so that the danger lamp 20 is not turned on. Even if the temperature falls below 55 ° C. again, no MW is output.

Once the set value of the dangerous temperature is set for the target temperature, the dangerous temperature automatically shifts with respect to the shift of the target temperature. Also, when the one-channel thermocouple 9 for temperature control is disconnected or forgotten to use for heating, the same operation as described above is performed, and the output of the MW is completely stopped. If something other than the above occurs,
All functions of the apparatus can be stopped by E _sw 21.

The power of the data processing apparatus 3 is supplied from a power output inlet 221 of the rear panel 206 of the apparatus main body 2. This power supply is once supplied to the insulation transformer 1 of the device main body 2.
It is output after being isolated at 11.

The temperature data and the foot switch interlock signal from the apparatus main body 2 are transmitted via the signal cable 31 to
The data is sent to the data processing device 3. When the data processing device 3 is in the standby state, the data processing device 3 starts taking in the temperature data and displaying on the monitor according to the interlocking signal. Thereafter, interruption and termination operations are performed according to the interlocking signal from the apparatus main body 2. The data taken into the data processing device 3 can be recorded on a floppy disk and printed out.

Next, data processing in the data processing device 3 will be described with reference to FIGS. The data processing device 3 has a built-in hard disk in which an operation program for performing data processing is stored. A data disk for storing patient data and treatment data is set in the floppy disk drive of the data processing device 3.

As described above, the data processing device 3 and the device main body 2 are connected by the power cord 26 and the signal cable 31. The signal cable 31 controls the temperature data and program of the thermocouple sensor 9 (channel).
The signal is transmitted from the device main body 2 to the data processing device 3.

FIG. 9 shows a general flow of the operation program. By turning on the power of the data processing device 3, the MS
-DOS is started and the operation program is started by the auto-executable batch file.

Subsequently, a process selection 301 is performed. That is, 1. 1. A process of performing a heating treatment, storing data of the temperature at that time, and generating a graph thereof. 2. a process of reproducing a temperature graph of a heating treatment performed in the past; 3. Return to the MS-DOS system This is a process for ending the operation program, and one of them is selected.

Next, each process will be described. First, one heating treatment will be described. In performing this process, first, data regarding a patient to be subjected to the heating treatment is input from a keyboard (input 302 of patient data). The items include, for example, name, age, sex, treatment site, number of treatments, date of treatment.

Next, the operating conditions of the MW thermotherapy device 2 are inputted from the keyboard as treatment data (treatment data input 303). For example, the target temperature,
There are the number of channels, control time, sampling period, output value, and the like.

Here, the target temperature is a target temperature for treatment of the affected part, the number of channels is the number of sensors for measuring the temperature, and the control time is the heating. The time is a time, the sample period is a time interval for performing temperature measurement within the control time, and the output value is an output (W) of the MW. After the input, the patient data and the treatment data are saved as one file on the data disk. Then, the heating treatment 304 is performed based on these input data. In this heating treatment, first, as shown in FIG.
After making the initial settings of the monitor, etc.,
Check the voltage value of the signal from.

The voltage value of the signal cable 31 is _initially 0 V, but increases to 10 V by pressing the F _sw 143 or the P _sw 142 of the apparatus main body 2. Thereafter, every time the F _sw 143 or the P _sw 142 is pressed, the voltage value of the signal cable 31 becomes 5
5V and 10V such as V, 10V, 5V, 10V ...
Are shown alternately. Then, the arrival of the control time or R _sw 1
Pressing 44 drops to 0V.

At the stage where the initial setting is completed, the signal voltage value of the signal cable 31 is 0 V.
_This means that the process waits until _sw 143 or P _sw 142 is pressed.

When _Fsw 143 or _Psw 142 is pressed, the program exits this loop and the timer 136 is started. The data processing device 3 continues to take in the temperature measurement data of the thermocouple 9 for the number of channels via the signal cable 31 and display the temperature measurement value, and display the time on the horizontal axis and the temperature on the vertical axis on the monitor. Are plotted on a graph.

Next, the energy is calculated. this is,
It shows approximately [J] of energy amount given to the affected area. As an example of a specific calculation method, when a temperature measurement value of a certain channel at a certain time is t ₁ and a temperature measurement value at a time separated by one sampling cycle from the time is t ₂ , t ₁ <t _{In the case of 2} , since the temperature increased, it was considered that heating was performed during the sampling cycle, and the energy value was calculated by the equation (energy [J]) = (output value [W]) × (sampling cycle [sec]). Calculate and add this value throughout the control time. Then, this progress is plotted on a graph in which the horizontal axis represents time and the vertical axis represents energy amount on the monitor. Once the temperature measurement is performed, it is necessary to wait for the time of the sampling cycle until the next temperature measurement is performed.

During this waiting time, a signal check and a timer check are performed as needed. At this time, if the F _sw 143 or the P _sw 142 is pressed, the signal voltage value becomes 5 V, so that a temporary stop process is performed by checking the signal. This means a pause such as a timer.

After this, the signal is checked again, so that F
Until the user presses the _sw 143 or the P _sw 142 or the R _sw 144, the pause state is maintained. Also, if R _sw 1
When the button 44 is pressed, the signal voltage value becomes 0 V, and the heating treatment is forcibly terminated. In the timer check, the time display is changed every second, and at the same time, it is checked whether it is within the control time and whether the sampling period has come.

2V and 8V in the figure are signal voltage values 0, 5, 1
This is a threshold value of 0V. Control time is too long, R _sw 14
When 4 is pressed, the heating treatment is completed, and the temperature measurement value,
The change over time of the energy amount is saved on the data disk. The graph created on the monitor is printed by the printer, and the heating treatment ends.

As shown in FIG. 9, the process of reproducing the temperature graph of the heating treatment performed in the past in the past is performed by using patient data, treatment data, and This is the process of reproducing the graph of temperature and energy and printing them. In the process of returning to the third MS-DOS system 305, since the program is a program on the S-DOS, a command of the MS-DOS can be used. Here, it is possible to perform processing such as searching for and deleting files on the data disk. Further, by selecting the process for terminating the operation program of 4, the termination process of the data processing device 3 and the like is performed, and the operation program ends.

[0072]

As described above, according to the present invention,
The set target temperature can be changed at any time without interrupting the heating, and safe and efficient thermal treatment can be performed.

[Brief description of the drawings]

1A is a configuration diagram of an entire system of a microwave thermotherapy device, and FIG. 1B is a partial rear view of FIG.

FIG. 2 is a block diagram of the microwave thermal treatment apparatus system of FIG. 1;

3A is a block diagram of a temperature control unit, and FIG. 3B is a time chart of FIG.

FIG. 4 is a block diagram of a relay circuit.

FIG. 5 is a timing chart of the relay circuit of FIG. 4;

FIG. 6 is an arrangement configuration diagram of a main part of the apparatus main body.

7A is a side view of the MW oscillating unit, and FIG. 7B is a front view of the MW oscillating unit.

8 is a schematic diagram showing a state of performing transurethral frontal hyperthermia using the apparatus of FIG. 1;

FIG. 9 is a flowchart of an operation program of the apparatus of FIG. 1;

FIG. 10 is a flowchart of a heating treatment of the operation program of FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electromagnetic wave thermotherapy device, 2 ... Device main body, 3 ... Data processing part, 6 ... Thermocouple input terminal, 8 ... Applicator, 9 ... Thermocouple sensor, 16 ... Foot switch terminal, 19 ... End lamp, 20 ... Danger Lamp, 102: temperature sensor unit, 1
03: temperature measurement unit, 104: temperature control unit, 105: temperature setting input unit, 106: measured temperature display unit, 107: set temperature display unit, 108: relay circuit unit, 109: MW oscillation unit, 111: insulating transformer, 136 ... Timer part, 14
1 ... End notification unit, 142 ... START / STOP switch, 143 ... Foot switch, 144 ... Reset switch, 209 ... MW output terminal

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-190969 (JP, A) JP-A-1-185268 (JP, A) JP-A-1-138416 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) A61N 1/40 A61N 5/02

Claims (1)

(57) [Claims] 1. A electromagnetic wave generating means for generating electromagnetic waves for heating the target heating region, an irradiation means for irradiating the electromagnetic wave generated by the electromagnetic wave generating means and said to target heating region, said target heating region Set target temperature to adjust temperature
Target temperature setting means for measuring, a temperature measuring means for measuring the temperature of the heated portion to be heated by the electromagnetic wave irradiated by the irradiation means, the target temperature set by the target temperature setting means ,
An output control unit that controls an output of the electromagnetic wave generation unit based on the measured temperature measured by the temperature measurement unit; and a heating limit of the target temperature setting unit that exceeds the target temperature.
Additional temperature output to output additional temperature to set temperature
Means, the added temperature output by the added temperature output means,
Based on the target temperature of the target temperature setting means,
Calculate the stop temperature for stopping the output of the magnetic wave generator
Stop temperature calculation means, the stop temperature calculated by the stop temperature calculation means and the stop temperature
The electromagnetic wave generation is performed based on the measured temperature of the temperature measuring means.
An electromagnetic wave thermotherapy device comprising: a stop control unit that performs control to stop the output of the generating unit.