JP2003038516A - Thermotherapeutic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermotherapeutic apparatus capable of improving a control accuracy of an actual temperature to an arbitrary set temperature in the low-temperature range of 70 deg.C to 100 deg.C. SOLUTION: The thermotherapeutic apparatus treats by utilizing a tissue contraction in a treating step after a superficial lesion is cauterized, a marker is attached or a protein is denatured by a protein denaturing a body cavity wall by a low-temperature heating by heating a heater guided to the body cavity and provided in a probe. The thermotherapeutic apparatus comprises the heater 1 made by including the heater at a distal end, the probe 100 having a temperature measuring unit 6 for measuring a temperature of the heater 1, a front panel 10 for displaying and setting a temperature, a temperature sensor 14 connected to the unit 6 to measure the temperature of the heater 1 of the probe 100, an energy supply unit 13 connected to the heater 1 to supply an energy for heating, and a controller 15 for controlling the unit 13 so that the temperature of the heater 1 becomes the arbitrary temperature set in the range of 70 deg.C to 100 deg.C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermotherapy device.

[0002]

2. Description of the Related Art As a thermotherapy device having a heating element, a heating element can be inserted into an endoscope channel having a heating portion therein, as disclosed in JP-A-11-197158. There is a cautery hemostatic device using a probe. The purpose of this treatment is mainly for hemostasis, and hemostasis is performed by cauterizing the tissue with high-temperature heat energy to the bleeding affected area.

The exothermic temperature is very high, and it is carried out in a temperature range of 200 ° C. or higher. Therefore, the level of tissue invasion due to cauterization reaches the submucosal region, and tissue degeneration that burns the tissue occurs depending on the amount of energy supplied.

To generate heat, electric energy is sent from the energy supply unit to the probe, but the energy is set not by temperature control but by joule of thermal work. In addition, this cautery system, in a word, 20
Heat is generated at a constant temperature at a fixed set temperature of 0 ° C or higher.

[0005]

It is a well-known fact that hemostasis by means of the above-mentioned cautery hemostatic device is an effective means for hemostasis such as ulcerative bleeding.

However, depending on the disease, cauterization may occur in a region having a low tissue invasion level. Especially in the case of cauterizing or heating with low energy for superficial lesions,
Since it is not a temperature control system in the low temperature region, overheating often occurs.

In addition, when a marker indicating the position of protein denatured by low-temperature heating is attached to the wall of the body cavity for the purpose of identifying a lesion site during post-treatment / reexamination, and when a recess or a cavity in the body cavity is attached. The same need for low temperature heating arises in performing treatment for the purpose of tissue contraction during the healing process after protein denaturation of the tissue concerned against contraction.

In this case, the function of controlling the temperature in the low temperature region of the energy supply unit becomes indispensable, and the cautery treatment apparatus of the prior art used a heater having a temperature coefficient in impedance. Although there are variations, 2
Although there is no effect on the hemostatic treatment in the high temperature region of 00 ° C. or higher, there is a concern that in the low temperature region, there is a problem that the invasion of tissues varies due to the significant influence.

Further, in actual use, it is conceivable that the same place is heated for a long time or a part outside the visual field of the endoscope is heated. In that case, a notification means for estimating damage to the tissue can be provided. The need arises.

The present invention has been made by paying attention to such a problem, and an object thereof is 70 ° C. to 10 ° C.
It is possible to improve the control accuracy of the actual temperature with respect to an arbitrary set temperature in the low temperature range of 0 ° C., improve the operability by displaying the heat generation time and temperature, and further improve the safety by adding a forced stop mechanism for heat generation. It is to provide a thermotherapy device that can be used.

[0011]

In order to achieve the above object, a first aspect of the present invention is directed to the inside of a body cavity and heats a heating element provided inside the probe to heat the body cavity wall by heating at a low temperature. In a hyperthermia treatment device that performs treatment using tissue contraction in the healing process after cauterization of superficial lesions or attachment of markers or protein denaturation by degeneration, a fever part including a heating element at the tip, and A probe having a temperature measuring element for measuring the temperature of the heat generating section, a panel section for performing temperature display and setting, a temperature detecting section connected to the temperature measuring element for measuring the temperature of the heat generating section of the probe, and An energy supply unit that is connected to a heating element and supplies energy for heat generation, and controls the energy supply unit so that the temperature of the heating unit becomes an arbitrary temperature set in the range of 70 ° C to 100 ° C. You And a control unit.

A second aspect of the present invention is the thermotherapy apparatus according to the first aspect, wherein the total amount of energy applied to the living body from the start of heat generation of the heating element of the heating section and / or the power is turned on.
The total amount of energy given to the living body from time to time is displayed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the outline of this embodiment will be described. In the present embodiment, temperature measuring means such as a temperature sensor is arranged in the vicinity of the heat generating element in the heat generating portion at the tip of the probe,
It is intended to provide a system that is configured to maintain the temperature of a heating element at an appropriate temperature by real-time temperature feedback and displays temperature information, emission energy information, heating time information, and the like.

At this time, the probe heating portion temperature is 70 ° C. to 100 as a low temperature heating region on the assumption of protein denaturation of the tissue.
It is configured to allow arbitrary temperature setting in a low temperature range such as ° C.

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

(First Embodiment) (Constitution) FIG. 1 is an overall constitutional view of a probe 100, in which a sheath 101 having a long flexibility has a heat generating portion 102 at the distal end thereof, and a sheath 101 has a proximal end portion. Is the energy supply 1
03, connector section 104 that makes detachable electrical connection
have.

FIG. 2 is a diagram showing an internal configuration of the heat generating portion 102 of the probe 100 described above. The heating element 1 made of a thin film metal element, which is the heart of this device, has one end connected to the coaxial cable 3 in the internal space surrounded by the main body 2,
In the connection, the core wire 3a and the outer wire 3b are electrically coupled to the bipolar terminals of the heating element 1.

Further, the electrically connected portion is made of resin material 4
Is coated to provide reinforcement and insulation.
The heating element 1 is not limited to a thin film metal element, but may be a ceramic, a nichrome wire, a diode, or the like.

The other end of the heating element 1 is connected to the heat conduction block 5
Further, the temperature measuring body 6 made of a thermocouple is incorporated in the heat conduction block 5. At this time, the temperature measuring element 6
May be a resistance temperature detector, a thermistor, or the like.

The heat conduction block 5 is in surface contact with the inner wall of the tip cap 7 whose outer periphery is directly contacted with the tissue.
As for the outer shape of the tip cap 7, the tip portion 7a is formed into a spherical shape in order to facilitate contact with the tissue, and a non-adhesive coating portion 8 for preventing the tissue from sticking to the outer surface.
Is attached.

As shown in FIG. 3, a female screw portion 9a is formed inside the opening 9 of the tip cap 7, and is fixed by being screwed with a male screw portion 2a provided on the main body 2. You may reinforce materials.

FIG. 4 shows the connection relationship between the heat conduction block 5, the heating element 1 and the temperature measuring element 6. A heat generating element coupling hole 5a is provided at the center of the heat conduction block 5, and a temperature measuring element coupling hole 5b is provided at an arbitrary position in the vicinity thereof, which are coupled to each other by soldering or the like.

Further, in FIG. 2, at the rear end of the main body 2,
The sheath 101 is connected by press fitting or adhesion.

Next, FIG. 5 shows an energy supply power source 103.
The front panel part 10 in is shown. The front panel unit 10 includes a display unit 11 and a panel unit 12, and the panel unit 12 includes a main switch 12a, a connector attaching / detaching unit 12b for connecting to the probe 100, a temperature setting switch 12c, an energy supply time setting switch 12d, and heat generation. The operation switch 12e is provided.

As shown in FIG. 6, the display unit 11 displays the set temperature value display 11a and the real time temperature display 11a.
b and a time information display 11c such as energy supply time are displayed. However, these display items are not limited to the above.

FIG. 7 is a system diagram of the present hyperthermia treatment apparatus. As shown in the figure, the heating element 1 and the temperature measuring element 6 of the probe 100 are connected to the energy supplying section 13 and the temperature detecting section 14 in the energy supplying power source 103, and the connector section 104.
(FIG. 1).

Energy supply unit 13 and temperature detection unit 1
4 are both connected to the control unit 15, and the control unit 15 is connected to the heat generation operation switch 12e, the display unit 11 (FIG. 5) and the panel unit 12 (FIG. 5) of the front panel unit 10.

The control unit 15 has a timer function.
(Not shown) is incorporated and configured to correspond to an arbitrary heat generation time setting in the panel unit 12.

When the control unit 15 detects that the heat generation operation switch 12e is turned on during non-heat generation, the energy supply unit 13 is turned off.
It is configured so that N is generated to generate heat, and the energy supply unit 13 is turned off to stop heat generation after a lapse of a set time.

When the control section 15 detects that the heat generation operation switch 12e is turned on during heat generation, the control section 15 turns off the energy supply section 13 at that time to forcibly stop the heat generation.

The control unit 15 may be provided with a phonetic sound notifying means such as a bushing used when supplying energy.

Further, the energy may be supplied only while the ON state of the heat generation operation switch 12e is detected without depending on the timer function.

(Operation) The operation of the above configuration will be described below with reference to FIG. When the temperature setting switch 12c and the energy supply time setting switch 12d provided on the front panel unit 12 are set to arbitrary temperatures and operating times and the heat generation operation switch 12e is turned on, the tip heating unit 101 provided on the probe 100 is set. The heating element 1 therein starts to generate heat.

During heat generation, the output of the temperature detector 14 is 70 ° C.
The control unit 15 controls the energy supply unit 13 so as to be the same as the set temperature that is arbitrarily set in the range of -100 ° C.

Further, at this time, the control unit 15 sets an arbitrary set temperature in the temperature range, a temperature detected by the temperature detection unit 14, a set time of energy supply, a remaining time to the set time, or a net heat generation time to the front panel. Part 1
Set temperature value display 11 on display unit 0
a, real time temperature display 11b, and time information display 11c such as energy supply time.

When it is desired to stop the heat generation for some reason during the heat generation, the heat generating operation switch 12e is turned on, and the control unit 15 stops the heat generation.

(Effect) According to the above-described first embodiment,
Improve the control accuracy of the actual temperature against the arbitrary set temperature in the low temperature range of 70 ℃ to 100 ℃, improve the operability by displaying the heat generation time and temperature, and further improve the safety by adding the forced stop mechanism of heat generation. Can be made.

(Second Embodiment) (Structure) Although the basic structure is the same as that of the first embodiment, the following points are the differences between the first embodiment and this embodiment.

As shown in FIG. 8, the heating element 1 of the probe 100 is connected to the energy supply power source 103 via the connector portion 104 (FIG. 1). Instead of being directly connected, it is connected to the energy supply unit 13 via the energy counting unit 16.

Further, as shown in FIG. 9, the energy supply power source 1
The display unit 11 of the front panel unit 10 provided at 03 is provided with an energy display 11d that displays the total amount of energy emitted from the heating element 102 of the probe 100. Here, the total amount of energy applied to the living body from the start of heat generation of the heating element 1 and / or the total amount of energy applied to the living body since the power was turned on is displayed on the energy display 11d.

The above structure is different from the first embodiment, and the other structures are the same as those of the first embodiment.

(Operation) From the above configuration, the energy supply unit 1
The energy supply unit 3 integrates the supply amount from the energy counting unit 16, and the information is fed via the control unit 15 to the front panel unit 1.
Energy display 11d of the display unit 11 at 0
Is displayed in.

Except for the above points, the operation is the same as in the first embodiment.

(Effect) In addition to the effect of the first embodiment, by providing the total energy display, excessive heating can be prevented.

(Third Embodiment) (Structure) In this embodiment, the heating portion 10 of the probe 100 is used.
It is characterized in that the shape of 2 is changed. As shown in FIG. 10, the shape of the distal end cap 7 that constitutes the heat generating portion 102 is that the distal end portion 7a is formed into an inclined plane shape, which is a part different from the first and second embodiments.

The other structure is the same as that of the first and second embodiments.

(Operation) This is the same as in the first and second embodiments.

(Effect) In addition to the effects of the first and second embodiments, it is possible to heat the tissue in an enlarged area.

(Fourth Embodiment) (Structure) This embodiment is a modification of the third embodiment. As shown in FIG. 11, the shape of the tip cap 7 constituting the heat generating portion 102 is such that the tip portion 7a is The point is that a protrusion-shaped steeple portion 17 having an outer dimension D2 smaller than the outer diameter dimension D1 of the tip cap 7 is provided at a substantially central position, and the tip of the steeple portion 17 is formed by having a spherical portion 17a. One embodiment ~
This is a part different from the third embodiment.

The other structure is the same as that of the first and second embodiments.

(Operation) This is the same as in the first to third embodiments.

(Effect) In addition to the effects of the first and second embodiments, it is possible to heat a narrow lumen in the body cavity and attach a marker as small as possible.

[0053]

According to the present invention, it is possible to improve the control accuracy of the actual temperature with respect to an arbitrary set temperature in the low temperature range of 70 ° C to 100 ° C. In addition, operability can be improved by displaying the heat generation time and temperature. Furthermore, safety can be improved by adding a forced stop mechanism of heat generation.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a probe 100.

2 is a diagram showing an internal configuration of a heat generating portion 102 of the probe 100 shown in FIG.

FIG. 3 is a diagram showing a female screw portion 9a of a tip cap and a male screw portion 2a of a main body 2 screwed to the female screw portion 9a.

FIG. 4 is a diagram showing a connection relationship between a heat conduction block 5, a heating element 1 and a temperature measuring element 6.

FIG. 5 is a diagram showing a front panel unit 10 in the energy supply power source 103.

FIG. 6 is a diagram showing a specific display example on the front panel unit 10.

FIG. 7 is a system diagram of the present hyperthermia treatment device.

FIG. 8 is a system diagram of the present hyperthermia treatment apparatus of the second embodiment.

FIG. 9 is a diagram showing a specific example of a display on the front panel unit 10 according to the second embodiment.

FIG. 10 is a view showing a shape of a tip cap 7 according to a third embodiment.

FIG. 11 is a view showing the shape of the tip cap 7 of the fourth embodiment.

[Explanation of symbols]

1 heating element 2 body 2a Male screw part 3 coaxial cable 3a core line 3b outside line 4 resin material 5 heat conduction block 5a Heating element coupling hole 5b Temperature measuring element 6 temperature measuring element 7 Tip cap 7a tip 8 Non-adhesive coating part 9 openings 9a Female thread part 10 Front panel section 11 Display 12 panel section 12a Main switch 12b Connector attaching / detaching part 12c Temperature setting switch 12d Energy supply time setting switch 12e Heat generation operation switch 13 Energy Supply Department 14 Temperature detector 15 Control unit 100 probes 101 sheath 102 heating part 103 energy supply 104 connector

Claims (2)

[Claims] 1. A cauterization of a superficial lesion, attachment of a marker or protein denaturation by causing protein degeneration of a body cavity wall by low-temperature heating by causing a heating element provided inside a probe to generate heat by being induced into the body cavity. In a hyperthermia treatment device for performing treatment utilizing tissue contraction in the healing process of, a probe having a heat-generating part including a heat-generating part at its tip, and a temperature measuring device for measuring the temperature of the heat-generating part, A panel section for setting, a temperature detecting section connected to the temperature measuring element to measure a temperature of a heat generating section of the probe, an energy supplying section connected to the heat generating element and supplying energy for heat generation, A hyperthermia treatment apparatus comprising: a control unit that controls the energy supply unit so that the temperature of the heat generating unit becomes an arbitrary temperature set in the range of 70 ° C to 100 ° C. 2. The hyperthermia treatment apparatus according to claim 1, wherein the total amount of energy given to the living body from the start of heat generation of the heating element and / or the total amount of energy given to the living body after the power is turned on is displayed.