JP2001269352A - Power supply for heating treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce difference in result of coagulation caused by difference in tissue subject to coagulation. SOLUTION: In this power supply 2 for a heating treatment apparatus a power supply part 10 to supply power to heater elements in thermocoagulating forceps is provided, so power is supplied through an output part 11 from an output connector 4 to the thermocoagulating forceps. To an output route to the two heater elements of the thermocoagulating forceps, a first temperature detecting part 12a and a second temperature detecting part 12b are connected, so temperature of the two heater elements can be separately measured. The output part 11, the first temperature detecting part 12a, and the second temperature detecting part 12b are controlled by a control part 13, and an operation signal from an operation part 14 comprising a foot switch, a coagulation regulation knob, etc., is inputted to the control part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a power supply for a heat treatment instrument,
More specifically, the present invention relates to a power supply for a heat treatment device, which is characterized by a power control portion for supplying the heat treatment device.

[0002]

2. Description of the Related Art In recent years, endoscopes capable of observing an affected part by inserting an inserted part into a body cavity and performing treatment on the affected part have been widely used. A channel is provided, and by inserting each treatment tool into the channel, a desired treatment can be performed on an affected part located at the distal end of the endoscope.

As the above-mentioned treatment tool, for example, Japanese Patent Application Laid-Open
As shown in JP-A-133947, there is a heating probe that coagulates a bleeding point by applying heat to an affected part and performs a treatment such as hemostasis. However, in a heating probe, it is necessary to control a heating state of the affected part. The above-mentioned JP-A-62
In JP-A-133947, heating control is performed by detecting the power supplied to the heating means of the heating probe and providing a heating value detection circuit for detecting whether the total heating value has reached a set value based on the detected power. Was.

[0004]

However, in Japanese Patent Laid-Open Publication No. Sho 62-133947, since the heating is controlled simply by the total amount of supplied electric power, the coagulation result depends on the size and thickness of the tissue to be coagulated. There is a problem that there is a difference in

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a power supply for a heat treatment instrument capable of reducing a difference in coagulation result due to a difference in tissue to be coagulated.

[0006]

According to a first aspect of the present invention, there is provided a power supply for a heat treatment instrument, comprising: a heat generator disposed on a treatment tool for heating a treatment section; and a power supply section for supplying power to the heat generator. A temperature detecting means for detecting a temperature of the heat generating means, and a power supply amount or an output time until the temperature detected by the temperature detecting means reaches a predetermined value.
And control means for controlling the power output of the power supply unit thereafter.

According to a second aspect of the present invention, there is provided a power supply for a heat treatment instrument, comprising: a heat generating means disposed on the treatment instrument for heating the treatment section;
A power supply unit for supplying power to the heat generating unit; a temperature detecting unit for detecting a temperature of the treatment unit; and an amount of power supplied or an output time until the temperature detected by the temperature detecting unit reaches a predetermined value. And control means for controlling the power output of the power supply unit thereafter.

According to a third aspect of the present invention, there is provided a power supply for a heat treatment instrument, comprising: a heat generating means disposed on the treatment instrument for heating the treatment section;
A power supply unit for supplying power to the heat generating means; a temperature detecting means for detecting a temperature of the heat generating means; and a power supply amount or output time after the heat generating means reaches a predetermined temperature reaches a predetermined value. And control means for controlling the power output of the power supply unit when the power is turned on.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 relate to a first embodiment of the present invention. FIG. 1 is a block diagram showing a configuration of a heat treatment system, and FIG. 2 is a block diagram showing a configuration of a power supply for a heat treatment tool of FIG. FIG. 3 is a view for explaining the operation of the power supply for a heat treatment instrument of FIG. 2, FIG. 4 is a view for explaining a modification of the thermocoagulation forceps of FIG. 1, and FIG. FIG. 6 is a view for explaining a first modification, and FIG. 6 is a view for explaining a second modification of the power supply for a heat treatment instrument in FIG.

(Structure) As shown in FIG. 1, a heat treatment system 1 according to the present embodiment includes a heat treatment instrument power supply 2 and thermocoagulation forceps 3, and an output of the heat treatment instrument power supply 2. The thermocoagulation forceps 3 is connected to the connector 4 via a cable 5, and the thermocoagulation forceps 3 is gripped by being sandwiched between two heating elements 6 provided at a portion for gripping a tissue to be coagulated. It has become. Here, the heating element 6
Means a ceramic heater, a PTC heater, a resistance wire pattern on a ceramic substrate, a nichrome wire, or the like.

The power supply 2 for the heat treatment instrument has a foot switch 7
Is connected, and when the foot switch 7 is turned on, electricity is supplied and the heating element 6 generates heat, and the grasped tissue is subjected to coagulation treatment. The power supply 2 for a heat treatment instrument has a coagulation control knob 8, and by operating the coagulation control knob 8, the output can be arbitrarily set from MIN to MAX.

As shown in FIG. 2, the power supply 2 for the heat treatment instrument is provided with a power supply unit 10 for supplying power to the heat generating element 6, and heat-coagulated from the output connector 4 via the output unit 11. Electric power is supplied to the forceps 3.

A first temperature detecting section 12a and a second temperature detecting section 12b are connected to an output path to the two heating elements 6, and each independently measures the temperature of the two heating elements 6. You can do it.

The first temperature detecting section 12a and the second temperature detecting section 12b calculate the temperature from the resistance value of the heating element 6, for example, by utilizing the fact that the resistance value of the heating element 6 changes depending on the temperature. .

The output section 11, the first temperature detecting section 12a and the second temperature detecting section 12b are controlled by a control section 13,
An operation signal from an operation unit 14 including a foot switch 7, a coagulation adjustment knob 8, and the like is input to the control unit 13.

(Operation) The operation of the present embodiment configured as described above will be described. Here, the first temperature detection unit 1
The average temperature detected by 2a and the second temperature detection unit 12b is defined as the temperature of the heating element 6.

When the tissue to be coagulated is grasped by the thermocoagulation forceps 3 and the foot switch 7 is depressed, the temperature of the heating element 6 becomes as shown in FIG.
It rises as shown. Based on the average temperatures detected by the first temperature detection unit 12a and the second temperature detection unit 12b, the control unit 13 determines the time t when the temperature of the heating element 6 reaches 100 ° C.
1 is detected, and when a predetermined time T has elapsed from t1 (t2), a buzzer (not shown) sounds and the output is turned off. The predetermined time T is variable by the coagulation adjustment knob 8, and, for example, as the coagulation adjustment knob 8 changes from MIN to MAX,
The predetermined time T changes from 3 to 7 seconds.

Here, the output is turned off when the predetermined time T has elapsed, but the output value may be made smaller instead of being turned off. Further, the notification by the buzzer may be performed without changing the output.

The average temperature detected by the first temperature detector 12a and the second temperature detector 12b is used as the temperature of the heating element 6, but the higher temperature or the lower temperature is used as the temperature of the heating element 6.
The temperature may be controlled as the temperature.

(Effect) As described above, in the present embodiment, the time t 1 at which the temperature of the heating element 6 reaches 100 ° C. is detected,
By setting the elapsed time, the end of coagulation is predicted and the notification or output control is performed, so that excessive burning can be prevented. Also, by controlling the output by the time of 100 ° C. or more,
Variations in coagulation results due to differences in target tissues can be reduced.

In the present embodiment, the thermocoagulation forceps 3 are configured to hold the tissue to be coagulated by being sandwiched between the two heating elements 6. However, the present invention is not limited to this configuration. As shown in FIG. 1, a flexible insertion portion of the electronic endoscope 21 communicates with a channel port 20 provided in an operation portion 22 of the electronic endoscope 21 for imaging an inside of a body cavity with a solid-state imaging device (for example, a CCD) (not shown). The present invention can also be applied to a linear heating treatment tool 24 provided with a heating element 6 at the tip, which is inserted into a channel (not shown) which is disposed inside and has an opening at the tip.

In this case, the tissue in the body cavity is observed by connecting a universal cable 25 extending from the operation section 22 of the electronic endoscope 21 to a light source device and a camera control unit (CCU) not shown. Then, the distal end of the electronic endoscope 21 approaches the tissue to be coagulated, the heating treatment tool 24 is inserted into the channel from the channel opening, and the heating element 6 at the distal end projects from the opening at the distal end of the electronic endoscope 21, The heating element 6 is pressed against the tissue to be coagulated to cause the heating element 6 to generate heat, thereby performing a coagulation treatment.

At this time, the heating treatment instrument 24 is connected to the power supply 2 for the heating treatment instrument, and the output control described above is performed by the power supply 2 for the heating treatment instrument. Can be obtained.

In the present embodiment, the first temperature detecting section 12a and the second temperature detecting section 12b detect the temperature based on the change in the resistance value of the heating element 6. However, the present invention is not limited to this. 5 is provided with a temperature sensor (not shown).
As shown in (1), as a first modified example of the power supply 2 for a heat treatment instrument, the first temperature detecting unit 12a and the second temperature detecting unit 12b may detect the temperature based on the detection signal of the temperature sensor. Here, examples of the temperature sensor include a thermistor and a thermocouple. This method using a temperature sensor is effective when it is desired to increase the accuracy of the temperature to be controlled.

Further, the average temperature detected by the first temperature detecting section 12a and the second temperature detecting section 12b is set as the temperature of the heating element 6, but is not limited to this, and as shown in FIG. As a second modified example of the power supply 2, the temperature of the heating element 6 may be detected only by the first temperature detection unit 12a. In this case, the circuit is simplified by using only one temperature detection unit. Can be

The average temperature detected by the first temperature detector 12a and the second temperature detector 12b is set as the temperature of the heating element 6. However, the present invention is not limited to this. , The average value, the maximum value, or the minimum value thereof may be determined as the temperature of the heating element 6.

FIG. 7 is a diagram for explaining a method of controlling power supply to a heating element according to a second embodiment of the present invention.

(Structure) The structure of the second embodiment is the same as that of the first embodiment, and only the method of controlling the power supply to the heating element 6 is different. Therefore, only different points will be described, and the same components will be assigned the same reference numerals as in the first embodiment, and description thereof will be omitted.

Further, the present invention can be applied to the first or second modification of the power supply 2 for the heat treatment instrument of the first embodiment shown in FIG. 5 or FIG. The present invention is also applicable to a modified example of the coagulation forceps.

(Operation) When the foot switch 7 is pressed,
The temperature of the heating element 6 is measured by the first temperature detector 12a and the second temperature detector 12b. When measuring the temperature of a plurality of heating elements, it is determined in advance that the average value, the maximum value, or the minimum value is set as the temperature of the heating element 6.

As shown in FIG. 7, the control unit 13 measures a time T100 until the temperature of the heating element 6 reaches 100 ° C. This time T100 is correlated with the amount of coagulated tissue of the target tissue. After the temperature reaches 100 ° C., when a predetermined time determined by a function based on the time T100 until the temperature reaches 100 ° C. has elapsed, a buzzer (not shown) is sounded and the output is turned off.

The function based on the time T100 until the temperature reaches 100 ° C. is, for example, a proportional function of T100 (= C × T100, C:
Proportional constant). The proportionality constant C at this time is variable by the coagulation adjustment knob 8, and for example, the coagulation adjustment knob 8 is set to M
As the state changes from IN to MAX, the proportionality constant C becomes 0.5
~ 4. FIG. 6 shows the case where the proportionality constant C = 2,
After the temperature of the heating element 6 reaches 100 ° C. (t1), 10
The case where the output is turned off when a time twice as long as the time T100 until the temperature reaches 0 ° C. (t2) is shown.

Here, it is assumed that the output is turned off.
The output value may be reduced instead of F. Further, the notification by the buzzer may be performed without changing the output.

As described above, in the present embodiment, in addition to the effect of the first embodiment, the time T10 until the temperature reaches 100 ° C.
Since the amount of coagulated tissue is estimated from 0 and the output control condition is changed according to the estimated amount of tissue, control or notification of the completion of coagulation can be stably performed regardless of the target tissue.

FIG. 8 is a diagram for explaining a method for controlling power supply to a heating element according to the third embodiment of the present invention.

(Configuration) The third embodiment has the same configuration as that of the first embodiment, and differs only in the method of controlling power supply to the heating element 6. Therefore, only different points will be described, and the same components will be assigned the same reference numerals as in the first embodiment, and description thereof will be omitted.

Also, the present invention is applicable to the first or second modification of the power supply 2 for the heat treatment instrument of the first embodiment shown in FIG. 5 or FIG. The present invention is also applicable to a modified example of the coagulation forceps.

(Operation) When the foot switch 7 is pressed,
The temperature of the heating element 6 is measured by the first temperature detector 12a and the second temperature detector 12b. When measuring the temperature of a plurality of heating elements, it is determined in advance that the average value, the maximum value, or the minimum value is set as the temperature of the heating element 6.
Also, the control unit 13 monitors the output power of the output unit 11,
Measure the accumulated power supply.

As shown in FIG. 8, which is a graph of the temperature of the heating element 6 and the accumulated electric energy, the control section 13 determines the time t1 when the temperature of the heating element 6 reaches 100 ° C. Measure the electric energy. When the supply power amount after time t1 reaches the predetermined supply power amount E (t2), the control unit 13 sounds a buzzer (not shown) and turns off the output. The predetermined power supply amount E is variable by the coagulation control knob 8, and as the coagulation control knob 8 changes from MIN to MAX,
The predetermined power supply amount E increases.

Here, it is assumed that the output is turned off.
The output value may be reduced instead of F. Further, the notification by the buzzer may be performed without changing the output.

As described above, in the present embodiment, as in the first embodiment, excessive burning can be prevented, and the output is controlled by the amount of electric power supplied at 100 ° C. or more, so that the difference in the target tissue can be improved. Variation in coagulation results can be reduced.

FIG. 9 is a diagram for explaining a method of controlling power supply to a heating element according to the fourth embodiment of the present invention.

(Structure) The structure of the fourth embodiment is the same as that of the first embodiment, and only the method of controlling power supply to the heating element 6 is different. Therefore, only different points will be described, and the same components will be assigned the same reference numerals as in the first embodiment, and description thereof will be omitted.

Also, the present invention is applicable to the first or second modification of the power supply 2 for a heat treatment instrument of the first embodiment shown in FIG. 5 or FIG. The present invention is also applicable to a modified example of the coagulation forceps.

(Operation) With the depression of the foot switch 7,
The temperature of the heating element 6 is measured by the first temperature detector 12a and the second temperature detector 12b. When measuring the temperature of a plurality of heating elements, it is determined in advance that the average value, the maximum value, or the minimum value is set as the temperature of the heating element 6.
Also, the control unit 13 monitors the output power of the output unit 11,
Measure the accumulated power supply.

As shown in FIG. 9, which is a graph of the temperature of the heating element 6 and the accumulated power, the control unit 13 measures the amount of power E100 supplied until the temperature of the heating element 6 reaches 100 ° C. This electric energy E100 has a correlation with the amount of coagulated tissue of the target tissue.

After the temperature reaches 100 ° C. (t1), when a predetermined amount of power determined by a function based on the amount of power E100 until the temperature reaches 100 ° C. is supplied (t2), a buzzer (not shown) sounds and the output is turned off. I do. The function based on the power supply amount E100 up to 100 ° C. is, for example, a proportional function of E100 (= C × E100, C: proportional constant). The proportional constant C at this time is variable by the coagulation adjusting knob 8, and for example, as the coagulating adjustment knob 8 changes from MIN to MAX, the proportional constant C changes from 0.5 to 4. FIG. 8 shows the case where the proportionality constant C = 2 and the temperature of the heating element 3 is 100.
° C (t1), and when an electric power twice as large as the supplied electric energy E100 until the temperature reaches 100 ° C is supplied (t2), the output becomes O.
The case where FF is performed is shown.

Here, it is assumed that the output is turned off.
The output value may be reduced instead of F. Further, the notification by the buzzer may be performed without changing the output.

(Effect) As described above, in the present embodiment, in addition to the effect of the first embodiment, the amount of solidified tissue is estimated from the supplied electric power E100 until the temperature reaches 100 ° C., and the output is made according to this amount of tissue. Since the control conditions are changed, control or notification of the completion of coagulation can be stably performed regardless of the target tissue.

FIGS. 10 and 11 relate to a fifth embodiment of the present invention. FIG. 10 is a block diagram showing a configuration of a heat treatment system, and FIG. 11 is a block diagram showing a configuration of a power supply for a heat treatment tool of FIG. FIG.

Since the fifth embodiment is almost the same as the first embodiment, only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

(Construction) In this embodiment, as shown in FIG. 10, a foot switch 7 is connected to the power supply 2 for a heat treatment instrument, and an output connector 4 and a display unit 31 are provided on the front surface. I have. The display section 31 can arbitrarily display necessary information.

A plurality of, for example, first thermocoagulated forceps 32a and second thermocoagulated forceps 32b can be detachably connected to the output connector 4 via the cable 5 by respective forceps-side coctors 33a, 33b. Has become.

Further, the heating elements 35a and 35b are incorporated in the grip portion of the first thermocoagulation forceps 32a, and the heating elements 36a and 36b are incorporated in the grip portion of the second thermocoagulation forceps 32b.

As shown in FIG. 11, the forceps-side connector 33
An identifier 34 for judging the type of the forceps is built in each of a and 33b. Here, the identifier 34 classifies the forceps by, for example, a difference in resistance value.

The power supply 2 for a heat treatment instrument is provided with a treatment instrument discriminating section 37 for identifying the identifier 34 inside the forceps side connectors 33a, 33b. There are a power supply unit 10a, a power supply unit 10b, an output unit 11a, and an output unit 11b for the first thermocoagulation forceps 32a and the second thermocoagulation forceps 32b, respectively. The power supply unit 10a and the power supply unit 10b are adapted to the heating elements of the first thermocoagulation forceps 32a and the second thermocoagulation forceps 32b, and may have different voltage specifications and the like. Similarly, the output section 11a and the output section 11b have output specifications adapted to the respective heating elements.

The outputs of the two output units 11a and 11b are switched to one of them by the output switching unit 38, connected to the output connector 4, and supplied to the heating element of the thermocoagulation forceps. Although shown schematically in this figure, the number of electric wires is determined according to the number of electrodes of the heating element.

The control unit 13 controls the output switching unit 38 based on the signal of the treatment tool discrimination unit 37, and controls the output unit 11a and the output unit 11b according to the input of the operation unit 14. Other configurations are the same as those of the first embodiment.

(Operation) First, the forceps-side connector 33a or the forceps-side connector 33b of the first thermocoagulation forceps 32a or the second thermocoagulation forceps 32b to be used is connected to the output connector 4. Then, the treatment tool determining unit 37 determines the identifier 34 and specifies the forceps. When the control unit 13 receives this signal, the control unit 13 controls the output switching unit 38 to connect the output unit 11 a or the output unit 11 b suitable for the forceps to the output connector 4. The display unit 31 indicates which forceps is connected.

When the foot switch 7 is pressed, the operation unit 1
4 is input to the control unit 13, and the control unit 13 outputs the output unit 11 a or the output unit 11 b connected to the output connector 4.
To start output.

The output control until the solidification is completed is performed by the control method of the first embodiment, but the control methods of the second to fourth embodiments are also applicable.

(Effects) As described above, in this embodiment, in addition to the effects of the first embodiment, a plurality of types of heat treatment tools including different heat generating means in one main body can be used.

FIGS. 12 and 13 relate to a sixth embodiment of the present invention. FIG. 12 is a block diagram showing the configuration of a power supply for a heat treatment device, and FIG. 13 shows the operation of the power supply for a heat treatment device in FIG. FIG.

Since the sixth embodiment is almost the same as the fifth embodiment, only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

In this embodiment, the first thermocoagulation forceps 32
a or the second thermocoagulation forceps 32b has two first heating elements and two second heating elements, respectively. As shown in FIG. 12, the output section 11a and the output section 11b are provided for each heating element. Connected, the output unit 11a and the output unit 11
The power supply unit 10 is connected to b. Although the output supplied to the heating element of the thermocoagulation forceps is schematically shown in this figure, the number of electric wires is determined according to the number of electrodes of the heating element. Other configurations are the same as those of the fifth embodiment.

(Operation) First, the forceps-side connector 33a or the forceps-side connector 33b of the first thermocoagulation forceps 32a or the second thermocoagulation forceps 32b to be used is connected to the output connector 4. Then, the treatment tool determining unit 37 determines the identifier 34 and specifies the forceps. When the control unit 13 receives this signal, the control unit 13 sets a predetermined ideal temperature curve suitable for the forceps. The display unit 31 indicates which forceps is connected.

When the foot switch 7 is pressed, the operation unit 1
4 to the control unit 13, and the control unit 13
a and the output unit 11b to start output. on the other hand,
The temperatures of the first heating element and the second heating element are constantly measured by the first temperature detecting section 12a and the second temperature detecting section 12b, and the output is turned off when the temperature exceeds the set ideal temperature curve. Thereafter, when the temperature falls below the ideal temperature curve, the output is turned on again. This control is performed independently for the first heating element and the second heating element.

That is, only the heat generating element exceeding the ideal temperature curve is turned off, and if it is lower than the ideal temperature curve, it is turned on. FIG. 13 shows an example of this temperature change. In this way, the output control is performed so as to approach the ideal temperature curve.

The output control until the solidification is completed is performed by the control method of the first embodiment, but the control methods of the second to fourth embodiments are also applicable.

(Effects) As described above, in this embodiment, in addition to the effects of the first embodiment, since the temperature change caused by the size of the tissue to be coagulated can be kept constant, excessive burning can be prevented. be able to. In addition, it is possible to easily limit the temperature change depending on the type of the forceps.

FIG. 14 is an external view showing the appearance of a power supply for a heat treatment instrument according to a seventh embodiment of the present invention. The seventh embodiment is almost the same as the first embodiment. Only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

(Configuration) As shown in FIG. 14, a power supply 2 for a heat treatment instrument according to the present embodiment has a temperature display section 51, an LED
There are an indicator 52 and a speaker 53, and the foot switch 7 and the thermocoagulation forceps 3 are connected.

The temperature of the heat generating element 6 of the thermocoagulation forceps 3 is displayed on a temperature display section 51, and the LED indicators 52 are turned on when the allowable maximum temperature of the heat generating element 6 is reached. The number of lights increases or decreases. Other configurations are the same as those of the first embodiment.

(Operation) When the foot switch 7 is depressed and the output is started, a sound is emitted from the speaker 53. Heating element 6
As the temperature rises, the frequency of the sound of the speaker 53 increases, and the degree of temperature rise can be recognized by sound. The sounding interval may be shortened as the temperature rises.

When the output is started, the LED indicator 52 is turned on according to the temperature of the heating element 6. As the temperature rises, the number of lit LEDs increases, and the degree of temperature rise can be intuitively known.

The temperature of the heating element 6 is always displayed on the temperature display section 51 so that a specific value can be known. Other operations are the same as those of the first embodiment.

(Effects) As described above, in this embodiment, in addition to the effects of the first embodiment, it is possible to know the temperature state by voice without looking at the panel of the apparatus. Further, the ratio to the allowable temperature value can be intuitively known from the visual information. Thereby, a more appropriate coagulation treatment can be performed.

[Supplementary Notes] (Supplementary Note 1) Heating means disposed on the treatment tool, a power supply unit for supplying power to the heating means, an identifier for identifying the type of the treatment tool, and a treatment based on the identifier A power supply for a heating treatment tool, comprising: a treatment tool discriminating means for recognizing a tool; and control means for controlling an output of the power supply unit in accordance with a signal from the treatment tool discriminating means.

(Additional Item 2) A heating unit disposed on the treatment tool, a power supply unit for supplying electric power to the heating unit, and a temperature detecting unit for detecting a temperature of the heating unit are provided. A power supply for a heat treatment instrument, wherein the power supply is controlled so that a slope of a temperature rise becomes a predetermined value.

(Additional Item 3) Heating means disposed on the treatment instrument, a temperature detecting section for detecting the temperature of the heat generating means, and a notification means audibly variable according to the temperature value of the heat generating means. A power supply for a heat treatment instrument, characterized in that:

(Supplementary Note 4) Heating means disposed on the treatment tool, a temperature detecting unit for detecting the temperature of the heating means, and a temperature level display means visually variable according to the temperature value of the heating means. A power supply for a heat treatment instrument, comprising:

[0083]

As described above, according to the present invention, there is an effect that a difference in coagulation result due to a difference in tissue to be coagulated can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of a heat treatment system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a power supply for the heat treatment instrument of FIG. 1;

FIG. 3 is a view for explaining the operation of the power supply for a heat treatment instrument in FIG. 2;

FIG. 4 is a view for explaining a modification of the thermocoagulation forceps of FIG. 1;

FIG. 5 is a view for explaining a first modification of the power supply for a heat treatment instrument in FIG. 1;

FIG. 6 is a view for explaining a second modified example of the power supply for a heat treatment instrument in FIG. 1;

FIG. 7 is a diagram illustrating a method for controlling power supply to a heating element according to a second embodiment of the present invention.

FIG. 8 is a diagram illustrating a method for controlling power supply to a heating element according to a third embodiment of the present invention.

FIG. 9 is a diagram illustrating a method for controlling power supply to heating elements according to a fourth embodiment of the present invention.

FIG. 10 is a configuration diagram showing a configuration of a heat treatment system according to a fifth embodiment of the present invention.

11 is a block diagram showing the configuration of the power supply for the heat treatment instrument of FIG.

FIG. 12 is a block diagram showing a configuration of a power supply for a heat treatment instrument according to a sixth embodiment of the present invention.

FIG. 13 is a view for explaining the operation of the power supply for a heat treatment instrument of FIG. 12;

FIG. 14 is an external view showing an external appearance of a power supply for a heat treatment instrument according to a seventh embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Heat treatment system 2 ... Heat treatment tool power supply 3 ... Thermal coagulation forceps 4 ... Output connector 5 ... Cable 6 ... Heating element 7 ... Foot switch 8 ... Coagulation control knob 10 ... Power supply unit 11 ... Output unit 12a ... 1st temperature Detector 12b Second temperature detector 13 Controller 14 Operation unit

Claims (3)

[Claims] A heating unit disposed on a treatment tool for heating the treatment unit; a power supply unit for supplying power to the heating unit; a temperature detection unit for detecting a temperature of the heating unit; and a temperature detection unit. Control means for controlling the power output of the power supply unit thereafter according to the amount of power supplied or the output time until the detected temperature reaches a predetermined value, Power supply. A heating unit disposed on a treatment tool for heating the treatment unit; a power supply unit for supplying power to the heating unit; a temperature detection unit for detecting a temperature of the treatment unit; Control means for controlling the power output of the power supply unit thereafter according to the amount of power supplied or the output time until the detected temperature reaches a predetermined value, Power supply. A heating unit disposed on a treatment tool for heating the treatment unit; a power supply unit for supplying power to the heating unit; a temperature detection unit for detecting a temperature of the heating unit; Control means for controlling the power output of the power supply unit when the amount of power supplied or the output time after the temperature reaches a predetermined value has reached a predetermined value.