JP2739734B2 - Thermal treatment equipment - Google Patents

Description

The present invention relates to a hyperthermia treatment device used for treatment of cancer and the like, and more particularly, to a hyperthermia treatment device which stores treatment conditions to enhance its reproducibility. It relates to a treatment device.

(B) Conventional technology In a so-called dielectric heating type thermal treatment apparatus, an affected area is sandwiched between flat electrodes, high frequency is applied between the electrodes, and the cancer / tumor tissue in the affected area is heated to cause necrosis. It is a thing to tighten. In practice, rather than bringing the electrodes into direct contact with the patient, the electrodes are brought into contact with the patient via a circulating bolus of cooling water. Since the temperature of the subcutaneous fat layer immediately below the electrode becomes high (the subcutaneous fat layer has a high resistivity to high frequency), a bolus is applied to cool the subcutaneous fat layer.
The integrated bolus and electrode are called an applicator.

Conventional thermal treatment devices include a bed (treatment table) for supporting a patient, an applicator support device for supporting the applicator (a so-called gantry type, a C-arm type described later, etc.), and each of these applicators. A high-frequency unit for generating a high-frequency voltage applied between the electrodes, a cooler for circulating cooling water in a bolus of these applicators, a temperature measuring device for measuring a treatment site of a patient, that is, an affected part and its surrounding temperature, and a high-frequency unit and a cooler. Systems with a central controller to control are known. Further, the control device includes a keyboard for inputting treatment conditions such as a high-frequency output, a display for monitoring a change in temperature of the affected part, and a printer for printing the same.

The bed has a mechanism that can appropriately set the patient support state, for example, the height and the opening position according to the treatment site of the patient. The opening in the bed is set to press the applicator against a portion in contact with the patient's bed, for example, a portion on the back when the patient is lying on his back on the bed. On the other hand, the applicator support device has a mechanism that can appropriately set a mounting state such as a mounting position, a mounting direction, and a mounting pressure of the applicator to a patient.

(C) Problems to be Solved by the Invention In the above-described conventional temperature treatment apparatus, the setting of the patient support state of the bed and the applicator mounting state of the applicator support apparatus are manually performed based on the description of the medical chart or the like. I was For example, with respect to the setting of the bed height, the bed itself is moved up and down by the power of a motor, but the rotation of this motor is controlled by an operator's button operation, and the operator can adjust the bed height appropriately. This motor is stopped when it is determined that it has become.

As described above, when the setting of the patient support state of the bed and the applicator mounting state of the applicator support device are performed manually, even if it is desired to set the same state, if the operator is different, the setting is delicate. Different, different treatment conditions. Further, even if the operator is the same, the setting is slightly different for each treatment, and the treatment condition is also different. Therefore, it is difficult to make the treatment conditions the same, and there is a problem that reproducibility of the hyperthermia treatment is low. In addition, when judging the therapeutic effect, there is also a problem that it is difficult to consider the treatment conditions.

On the other hand, the above setting must be performed by the operator while checking the treatment conditions described in the medical chart or the like, which makes the operation complicated, makes it difficult to monitor the condition of the patient and takes care of the patient, and poses a problem in terms of safety. Was.

The present invention has been made in view of the above, and an object of the present invention is to provide a hyperthermia treatment apparatus that can improve reproducibility and safety of hyperthermia treatment.

(D) Means for Solving the Problems In order to solve the above problems, the thermotherapy apparatus of the present invention comprises:
It has a configuration described in the following items i to ix.

i: an applicator having an electrode and a bolus; ii: high frequency generating means for generating a high frequency applied to the electrode; iii: cooling liquid circulating means for circulating a cooling liquid in the bolus; iv: supporting a patient. A treatment table whose patient support state can be set; v: an applicator support device that supports the applicator and the state of attachment of the applicator to the patient can be set; and vi: treatment of the patient. A temperature measuring means for measuring the temperature of the part, and vii: a central control means for processing the temperature signal from the temperature measuring means and controlling the high frequency generating means and the cooling liquid circulating means. Viii: a treatment condition storage means for storing treatment conditions including a patient support state of the treatment table and a wearing state of the applicator; ix: a treatment condition storage means for storing treatment conditions based on the treatment conditions stored in the treatment condition storage means. And a drive control means for controlling the driving of the treatment table and the applicator support device, and setting the patient support state of the treatment table and the mounting state of the applicator.

(E) Function In the thermal treatment apparatus of the present invention, the treatment table and the applicator support means are drive-controlled based on the treatment condition stored in the treatment condition storage means, and the height of the treatment table, the position of the applicator device, and the like. Is set. For this reason, the variation in the setting caused by the operator is eliminated, and the reproducibility of the thermal treatment can be improved. In addition, the operation can be simplified, the burden on the operator can be reduced, and more attention can be paid to monitoring the condition of the patient and nursing care than before, which leads to improvement in safety.

(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the entire thermotherapy apparatus according to this embodiment. The thermal treatment apparatus 1 includes a two-part bed (treatment table) 10 _-1 and 10 _-2 , an applicator support device 20,
The drive control device 40, the cooler 50, the console 60, the temperature measuring device 70 and the high-frequency unit 80 (not shown in FIG.
(See the figure).

Each of the beds 10 _-1 and 10 _-2 is provided with a lifting motor (not shown), and each of the lifting motors is controlled by a bed lifting control unit 11 _-1 or 11 _-2 shown in FIG. 4, respectively. ing.

Slide mats 12 are provided side by side on the upper surfaces of the beds 10 _-1 and 10 _-2 (see FIG. 1). Each of the slide mats 12 is provided on the bed _10-1 or _10-2 so as to be manually and independently movable in the longitudinal direction. Each slide mat 12 is provided with a position detection sensor for detecting the position of the slide mat 12, and a stop mechanism (both not shown) for stopping the slide mat 12 at a set position. In this stop mechanism, for example, a pin driven by a solenoid protrudes toward the slide mat 12, and is inserted into one of the holes drilled at equal intervals in the longitudinal direction on the lower surface of the slide mat to slide. mat
A mechanism for stopping 12 at the set position is applied. The position detection sensors are provided by slide mat control units 13 _-1 and 13 _-2 (fourth
The slide mechanism is connected, and a stop mechanism is controlled by the slide mat control unit _13-1 .

Each of the beds 10 _-1 and 10 _-2 is provided with a support bar 14 (see FIGS. 1 and 3). FIG. 1 shows a state where only the support bar 14 of the bed _10-1 is projected. Support bar 14, bed _10-1 is bed
It is provided on opposite sides 10a to _10-2. Support bar 1
4 is driven by a motor (not shown) so as to be able to protrude and retreat horizontally in the longitudinal direction of the slide mat 12. This motor is controlled by the support bar control unit _15-1 (see FIG. 4). The bed _10-2 is also provided with a support bar (not shown), which is controlled by the control unit _15-2 .

Reference numeral 20 denotes a C-arm type applicator support device (see FIG. 3). The applicator support device 20 includes a rail 29
A C-arm 23 is rotatably supported on a carriage 21 movably provided above. The C-arm 23 supports a rail 23a on the back surface thereof by rollers 24a,..., 24a of the bogie 21 from the erect position A shown in FIG. It can be rotated to the horizontal position B.

A chain slightly longer than the rail 23 is provided along the rear surface 23a of the rail 23. Each end of the chain 25 is fixed to an end of the rail 23, and the chain 25 is connected to sprockets 24b, 24
c and 24b. The rotation of the motor 27 is transmitted to the sprocket 24c by another chain 26, and the C-arm 23 is driven to rotate by the motor 27. This motor
27 is controlled by a C-arm rotation control unit 28 shown in FIG.

On the other hand, the trolley 21 is mounted on the rail 29 via the wheels 21b, 21b, and the wheels 21b are rotationally driven by the motor 21a, and the trolley 21 runs in the left-right direction on the paper of FIG. This traveling is controlled by the C-arm traveling control unit 22 shown in FIG.

The end of the C arm 23 has an applicator mounting part 30
_-1 , 30 _-2 are provided. Applicator mounting part 30 _-1 ,
30 _-2, respectively the motor 31 _-1, 31 _-2 is incorporated, pressing the applicator mounting portion 30 _-1, 30 _-2 for the C-arm 23 an end (attachment) direction D, releasing direction E Can be respectively driven. This drive is performed by the applicator pressing controller
It is controlled by 32 _-1 and 32 _-2 respectively (see FIG. 4).

The applicator attachment portion 30 _-1, the 30 _-2, respectively applicator 33 _-1, 33 _-2 removably attached. Each of the applicators 33 _-1 and 33 _-2 has an electrode 34 and a bolus 35. 36 is a cooling water tube.

An arm 41 is attached to the drive control device 40,
Further, an operation board 42 is attached to the tip of the arm 41 (see FIG. 1). The operation board 42 has a display section 42a and a button section 42b. Also cooler 50
The applicator 33 through the coolant tube 36 and the like _-1, 33
Connected to _-2, these applicators 33 _-1, circulating respectively cooling water to 33 _-2.

The console 60 includes an input device (keyboard) 61, a display device (CRT) 62, an output device (printer) 63, and a storage device (floppy disk drive) 64.

FIG. 4 is a block diagram showing the overall circuit configuration of the thermal treatment apparatus according to the embodiment. The central control device 65 includes the input device
61, display device 62, output device 63, storage device 64, temperature measuring device 70, cooling water control device 51 for cooler 50, high frequency unit 80
Are connected. The central control device 65 has a processing function of treatment data and a storage device for treatment conditions.
It has a function of controlling reading / storing from the 64, an input from the input device 61, a function of transmitting treatment conditions (cooling water temperature, flow rate, water injection amount, high frequency output, etc.) to the cooler 50 and the high frequency unit 80, and the like. .

The cooling water control device 51 of the cooler 50 further includes a water temperature control unit.
52, a flow control unit 53, a water injection amount control unit 54 are connected,
The temperature and flow rate of the cooling water circulating through the applicators 33 _-1 and 33 _-2 and the amount of cooling water injected into each bolus 35 are controlled.

The drive control device 40 is connected to the central control device 65, and among the treatment conditions, those related to the beds _10-1 , _10-2 and the applicator support device 20 are transmitted from the central control device 65 to the drive control device 40.
Is transmitted to The drive control unit 40, the above-mentioned support bar controller 15 _-1, 15 _-2, the slide bar control unit 13 _-1, 13 _-2,
Bed elevating control units 11 _-1 and 11 _-2 , C-arm traveling control unit 22,
C arm rotation controller 28, applicator pressing controller 3
2 _-1 and 32 _-2 are connected.

Next, the operation of the thermal treatment apparatus according to the embodiment will be described with reference to FIGS.

First, when a floppy disk of a patient to be treated is set in the storage device, data such as the patient's name, age, ID, and disease name are read from the floppy disk and displayed on the display device 62 [Step (hereinafter referred to as ST). 1).

Next, a list of the treatment conditions performed so far each time is displayed on the floppy disk. The treatment conditions include a position at which a thermocouple probe (not shown) of the temperature measuring device 70 is pierced by the patient, the temperature of the affected part measured by these thermocouple probes, high-frequency output, treatment time, cooling water temperature, cooling. Water flow,
Cooling water injection amount, slide mat 12 position and height of beds 10 _-1 and 10 _-2 , position of applicator support device 20, C arm
Angle of rotation of 23, the applicator 33 _-1 includes pressing state of 33 _-2. The floppy disk contains patient data,
A comment can be stored with the treatment condition.
The comment includes, for example, a complaint of the patient being treated.

By the way, the operator looks at the list of treatment conditions displayed on the display device 62 and, if any one of them is used as it is, does not change it, and if not, changes the input device.
Enter from 61. If not changed, the judgment of ST4 is NO
Then, the process branches to ST5, and the current treatment condition is selected from the existing treatment conditions. On the other hand, if you want to change
The process branches to 6 and the changed treatment condition is input. In the case of the thermal treatment which is usually performed several times to several tens of times, if the treatment condition is not changed at all, the treatment can be performed under the same condition every time.

When the input of ST5 or ST6 is completed, a message to start the operation is displayed on the operation board display unit 42a (ST5).
7). At this time, the beds 10 _-1 and 10 _-2 and the applicator support device 20 are in the state shown in FIG. That is, the height of the beds 10 _-1 and 10 _-2 is the lowest (this is to make it easier for the patient to get on the beds 10 _-1 and 10 _-2 ),
Further, the slide mats 12 of both beds 10 _-1 and 10 _-2 are in a state of being abutted respectively. On the other hand, the applicator support device 20 is in a retracted state, and the applicator mounting portions 30 _-1 and 30 _-2 are in a state moved in the release direction E.

Next, the slide mat 12 is moved, and the beds 10 _-1 , 10
An opening of _-2 is set (ST8). As described above, each slide mat 12 is moved by hand and selected in ST5 or ST6.
When the set slide mat position included in the current treatment condition changed in the step (1) is reached, the slide mat is stopped and fixed by the stop mechanism.

Subsequently, the support bar 14 protrudes from both beds 10 _-1 and 10 _-2 (ST9). Then, the patient is placed on the beds 10 _-1 and 10 _-2 by the hands of the operator / caregiver (ST10). In this case, the support bars 14, because the patient's body is supported, the bed 10 _-1, that the patient's body falls into the opening between 10 _-2 is prevented.

In ST11, both beds 10 _-1 and 10 _-2 are raised and their heights are set. In this setting, the operator operates the operation button section 42
While pressing b, the beds 10 _-1 and 10 _-2 continue to rise, and when the height reaches the height of the bed included in the treatment condition, the beds 10 _-1 and 10 _-2 are automatically raised. Stop. Bed 10 _-1, 10 _-2, even before reaching the set height, you release the operator finger from the operation button section 42b, the bed 10 _-1, 10
_-2 stops, and when the operation button section 42b is pressed again, the beds 10 _-1 and 10 _-2 start to rise.

It is possible to operate each part automatically by pressing the operation button once and stop it at the set position automatically. However, it is unforeseen when the operator etc. has to leave the device due to unavoidable circumstances. This is to prevent the situation described above, and the safety is considered. For this reason, the system can be said to be a semi-automatic system. Or display section 42b
Alternatively, the set height and the current height are displayed, and the operation button section 42b is operated so that the current height becomes the same as the set height.

In ST12, the front and rear positions of the applicator support device 20 are set. That is, when the operation button 42b is pressed, the applicator support device 20 is driven forward, and automatically stops when it reaches the set position. Again, in terms of safety,
When the finger is released from the operation button 42b, the applicator support device 20 is temporarily stopped to be semi-automatic. of course,
The manual type as described above can also be used.

In ST13, the setting of the rotation angle of the C arm 23
Pressing 42b also sets it semi-automatically.
Next, in ST14, the applicator attachment portion 30 _-2 is driven in the pressing direction D side. In ST15, it determines whether the applicator 33 _-2 reaches the support bar 14, in a case in which this determination is NO, the pressing of the applicator 33 _-2 continued, YES
In the case of branches to ST16, applicator attachment portion 30 _-2
Stops temporarily. Then, the support bar 14 retreats (ST
17), is driven applicator mounting portion 30 _-2 the pressing side again, automatically stops when reaching the set position, the applicator 33 _-2 pressed against the patient P. The applicator 33 _-2
Is also of the above-mentioned semi-automatic (or manual) type.

In ST19, the pressing of the applicator 33 _-1 is performed by semi-automatic (or manual). That is, while the operation button 42b is pressed, the applicator attachment portion 30 _-1 is driven in the pressing direction D, automatically stops when reaches the set position, the applicator 33 _-1 is pressed against the patient P ( (See FIG. 3).

In ST20, set et treatment time, high frequency of the set output, the applicator 33 _-1, are applied to the 33 _-2, warming is performed. During this time, the applicator 33 _-1, in the 33 _-2, the cooler 50, the cooling water is circulated, the electrode 34, the patient's skin is cooled. The temperature, flow rate, and amount of water injected into the applicator are controlled so as to be set values during the treatment conditions.

If completion of warming, and stores the current treatment conditions and other data to a floppy disk (ST21), the applicator 33 _-1, 33 _-2 removal, etc. are performed in the reverse order of ST8~ST19 (ST22 ).

In the above embodiment, a floppy disk device is used as a storage device, but a hard disk device or an optical disk device can also be applied, and the design can be changed as appropriate.

(G) Effects of the Invention As described above, the thermal treatment apparatus of the present invention has a treatment condition storage means for storing treatment conditions including a patient support state of a treatment table and a mounted state of an applicator, and a treatment condition storage means. Drive control means for driving and controlling the treatment table and the applicator support device based on the treatment conditions stored in the means, and setting the patient support state of the treatment table and the mounting state of the applicator. As a result, variations in measurements such as the height of the treatment table and the mounting state of the applicator are reduced, the reproducibility of treatment can be improved, and differences in treatment effects due to differences in treatment conditions can be easily examined. Can be done.

In addition, since the operation can be simplified, sufficient attention can be paid to monitoring of the condition of the patient and nursing care, and safety can be improved.

Furthermore, the treatment conditions for using the same model are unified, and a line can be achieved. For example, if the same type of thermotherapy device is installed in two departments of a hospital, if the storage medium used for treatment in one department is set in the thermotherapy device in another department, the same type of thermotherapy device is also used in this department. The condition can be treated.

In addition, as shown in the embodiment, if the configuration is such that the treatment condition can be browsed, it is easy to set the most effective treatment condition before the treatment.

[Brief description of the drawings]

The drawings show one embodiment of the present invention, and FIG.
FIG. 2 is a perspective view showing the entirety of the thermal treatment apparatus according to this embodiment, FIG. 2 is a perspective view showing the state of the bed and the applicator support device before treatment of the thermal treatment apparatus, and FIG. FIG. 4 is a side view illustrating the device, FIG. 4 is a block diagram illustrating a circuit configuration of the thermotherapy device, and FIG. 5 is a diagram illustrating an operation of the thermotherapy device. 10 _-1・ 10 _-2 : Bed, 11 _-1・ 11 _-2 : Bed elevation control unit, 13 _-1・ 13 _-2 : Slide mat control unit, 20: Applicator support device, 22: C arm rotation control unit , 28: C-arm driving controller, 32 _-1, 32 _-2: applicator pushing control unit, 33 _-1, 33 _-2: applicator, 34: electrode, 35: bolus, 40: drive unit control device, 50 : Cooler, 64: storage device, 70: temperature measurement device, 80: high frequency unit.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Atsushi Shimoyama 3rd Hanazono Nakamimoncho, Ukyo-ku, Kyoto-shi, Kyoto Prefecture Inside Tateishi Life Science Laboratory Co., Ltd. 3 Tachiishi Life Science Laboratory Co., Ltd.

Claims (1)

(57) [Claims] An applicator having an electrode and a bolus, a high frequency generator for generating a high frequency applied to the electrode, a coolant circulating means for circulating a coolant in the bolus, a patient supporting the patient, A treatment table whose support state can be set, an applicator support device which supports the applicator, and which can set the attachment state of the applicator to the patient, and a temperature for measuring the temperature of the treatment site of the patient A thermotherapy device comprising: a measuring means; and a central control means for processing the temperature signal from the temperature measuring means and controlling the high-frequency generating means and the cooling liquid circulating means. A treatment condition storage means for storing a treatment condition including a state and a wearing state of the applicator; and a treatment condition stored on the treatment condition storage means. And a drive control means for drivingly controlling the treatment table and the applicator support device, and setting a patient support state of the treatment table and a mounting state of the applicator.