JP2001046391A - Thermotherapeutic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of the normal tissue on the periphery of a lesion part, to change termotherapeutic conditions and to lessen the patient's pain by thermotherapy by detecting the displacement generated in an insertion part by the movement of the living body and controlling thermotherapy, thereby automatically interrupting or controlling the theremotherapy in accordance with the patient's movements. SOLUTION: A side irradiation type laser beam irradiation device 1 to be inserted into the living body of the thermotherapeutic device 10 irradiates the laser beam introduced by an optical fiber 118 from the laser beam generator 2 toward the vital tissue 20 from a housing 112. The patient generates various movements (body movements) when the pain accompanying treatment at thermotherapy occurs and a vibration sensor 71 detects the body movement and transmits the movements to a controller 6. If the pain is of the kind which can be relieved by changing the thermotherapeutic conditions, the therapeutic conditions are immediately changed. If the pain is as serious as cannot be dealt with simply by changing the therapeutic conditions, the thermotherapeutic conditions are immediately stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser beam, a microwave, a radio wave, an ultrasound The present invention relates to a heat treatment apparatus that performs heat treatment by irradiating living tissue with such energy.

[0002]

2. Description of the Related Art There is known a heat treatment apparatus for irradiating a lesion site with energy by using a long insertion portion inserted into a living body by using a body cavity to degenerate, necrotize, and disappear the tissue at the lesion site. . In general, this heat treatment apparatus directly irradiates energy to a lesion site located on or near the surface of a living tissue. There is also known a technique for irradiating energy to a deep part of a living tissue for the purpose of treating a lesion site located deep in the living tissue, such as heat treatment for prostatic hypertrophy.

For example, there is a transurethral microwave high temperature treatment. In this method, a catheter having a built-in microwave antenna is transurethrally inserted into the urethra of the prostate, and cooling water is circulated through the catheter to irradiate microwaves while cooling the urethra to heat-treat the prostate. However,
The treatment time is as long as about 60 minutes, and the position of the catheter may shift during the treatment.

[0004]

[Problems to be Solved by the Invention]
No. 0 discloses a technique for proposing a method of coagulating and reducing a tumor or a part of a prostate tissue by laser irradiation. This technique does not heat the urethral surface in contact with the balloon by injecting cooling fluid into the balloon,
Only the prostate inside is heated.

However, in this heating device, it is difficult for the operator to change the treatment condition promptly during treatment according to the request of the patient because the operator himself sets the treatment condition based on experience. That is, since the treatment condition is set based on the laser output, irradiation time, coolant flow rate, etc. suitable for the size of the affected part to be processed, the condition setting is complicated, and it is difficult to instantaneously change the treatment condition according to the request of the patient. Also, even when the patient moves his body in response to pain during treatment and the insertion portion having the laser beam emitting portion is displaced, it is difficult to return the insertion portion to an appropriate irradiation position. For this reason, irradiation may be performed on a part other than the target part by continuing irradiation without noticing the deviation of the irradiation position, or delaying the operation of stopping irradiation even if the deviation of the irradiation position is noticed. In addition, due to differences in individual susceptibility to heat, some patients may complain of intraoperative pain even under the same treatment conditions, and the treatment may be interrupted.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems of the prior art, and an object of the present invention is to automatically interrupt or control a heat treatment based on the movement of a patient. An object of the present invention is to provide a heat treatment apparatus for preventing damage to normal tissue around a part, changing heat treatment conditions, and reducing patient's pain due to heat treatment.

[0007]

In order to achieve the above object, a heat treatment apparatus for implementing the method of the present invention has the following configuration. That is, the insertion part is inserted into the living body,
In a heat treatment apparatus for performing heat treatment by applying energy to the living body from the insertion portion, a living body displacement detecting means for detecting a displacement generated in the insertion portion due to movement of the living body, and detection by the living body displacement detecting means Control means for controlling the heat treatment based on the value.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Hereinafter, FIGS.
The first embodiment will be described in detail with reference to FIG. FIG. 1 is a system configuration diagram of a heat treatment apparatus 10 according to the present embodiment. The heat treatment apparatus 10 includes a side-projection type laser light irradiation device 1 inserted into a living body, and the laser light guided by the optical fiber 118 from the laser light generation device 2 is:
Irradiation is performed from the housing 112 toward the living tissue 20. The patient generates various movements (body movements) when the patient experiences pain during the heat treatment, and a vibration sensor 71 is provided in the main body 110 of the laser beam irradiation device 1 to detect the body movements. , And transmits the detected vibration to the control device 6. As the body movement detecting means, a speed sensor, an acceleration sensor, an angular velocity sensor, or an angular acceleration sensor may be used alone or in combination in addition to the vibration sensor 71.

Further, the main body 110 is provided with a plurality of lumens (not shown) for circulating a cooling liquid which communicate with a housing 112 which is connected to the vicinity of the distal end thereof. 4 is connected to the coolant feed tube 185 and the coolant return tube 186.
The coolant circulating device 4 sends out a coolant of a set flow rate to the laser beam irradiation device 1 based on a control signal of the control device 6. The coolant temperature controller 5 controls the temperature by heating or cooling the coolant based on a control signal from the control device 6. The motor 188 performs a rotational motion at a set rotational speed based on a control signal from the control device 6. The control device 6
An operation unit 8 as input means, a display unit 7 for displaying input information and device information, a control unit (not shown) for controlling each device, a storage device (not shown) for various information, and an input / output device for various information ( (Not shown).

At the time of the heating treatment, the cooling liquid is supplied from the cooling liquid circulating device 4 to the laser light irradiation device 1 through the cooling liquid sending tube 185, the motor 188 rotates, and the laser light generating device 2 operates. The generated laser light is guided to the tip of the laser light irradiation device 1, is reflected by the reflecting portion reflecting surface 127, passes through the window, passes through the cover member 113, and is irradiated on the target point 40. At this time, the reflecting portion 127 changes the irradiation angle while reciprocating in the axial direction at a cycle of 1 to 3 Hz. However, since all the optical paths of the laser light intersect at the target point 40 inside the target portion 30, the target point In the case of 40, the amount of heat generated by continuous irradiation of the laser beam is large and the temperature is high. on the other hand,
On the surface layer 21 of the living tissue 20, the irradiation of the laser beam is intermittent and the amount of generated heat is small, so that it is maintained at a relatively low temperature and is protected from the influence of laser beam heating.

FIG. 2 is a sectional view of a tip portion of the laser beam irradiation device 1. As shown in FIG. 2, the laser light irradiation device 1
The housing 112 has a smooth reflecting surface 127 for reflecting a laser beam included in the housing 112. Reflecting surface 12
7 is connected to a drive unit 150 (FIG. 1) disposed at the base end of the laser beam irradiation device 1 via an arm 116, and is moved in the axial direction by moving the arm 116 in the axial direction of the main body 110. I do. The drive unit 150 (FIG. 1) has a cam mechanism (not shown) that converts the rotational movement of the motor 188 (FIG. 1) into a reciprocating movement. Face 12
7 is reciprocated in the axial direction of the main body 110. The housing 112 is formed of a hard tubular body having a window for laser beam irradiation, and is covered with a cover member 113 having good laser beam transparency.

FIG. 3 is a perspective view for explaining the structure of the reflecting surface 127 and the arm 116 of the laser beam irradiation device 1. The arm 116 branches right and left in the housing 112 and supports the reflecting portion reflecting surface 127. The reflecting portion 127 has a supporting portion 128 provided on one side thereof.
A pair of protrusions 133 is provided on the other side. Support part 12
Reference numeral 8 is attached to the arm 116 so as to be freely rotatable, and can cope with a change in the reflection angle of the reflection portion 127. The protrusion 133 is engaged with a groove 132 arranged on the inner wall of the housing 112. Arm 116
Is connected to a drive unit 150 (FIG. 1) disposed at the base end of the laser beam irradiation device 1 to reciprocate the reflecting surface 127 in the axial direction of the main body 110. Therefore, based on the interlocking of the arm 116 and the groove 132, the reflecting portion 127 changes its inclination angle with the axial movement.

FIG. 4 is a diagram for explaining the relationship between the movement of the reflecting portion 127 and the direction in which the laser beam is applied. FIG.
As shown in the figure, the distance between the arm 116 and the non-parallel groove 132 at the position P2 is shorter than that at the position P1. Therefore, when the support portion 128 of the reflecting portion reflecting surface 127 moves from the position P1 to the position P2, the reflecting portion reflecting surface 127 is moved.
The projection 133 slides along the groove 132, and the inclination angle of the reflection surface 127 is adjusted. That is, the inclination angle of the reflecting surface 127 with respect to the axis of the main body 110 is reduced. Similarly, when the support portion 128 of the reflecting portion reflecting surface 127 moves from the position P2 to the position P3, the reflecting portion reflecting surface 12
The inclination angle of the body 7 with respect to the axis of the main body 110 is further reduced.

On the other hand, at the positions P1 to P3, the laser beam reflected by the reflecting surface 127 of the reflecting portion is directed to a target point 40 inside the target 30 of the target heating portion.
Focus on In other words, the laser beam is emitted to
0 is applied continuously, and other tissues such as the surface layer are applied intermittently. Therefore, the target point 40
Is heated by the applied laser beam to reach a desired temperature. On the other hand, other living tissues such as the surface layer generate little heat and are hardly heated because the irradiation time of the laser beam is short.

The laser beam irradiating apparatus 1 includes a main body 110.
By appropriately designing the relationship between the arm 116 and the non-parallel groove 132 that are parallel to the axial direction and the shape of the groove 132,
The present invention can be applied to a lesion having a complicated shape. For example, the groove 132 is not limited to a straight line but may be a curved line.

FIG. 5 is a sectional view for explaining an example of use of the laser beam irradiation device 1. The distal end of the main body 110 is inserted into the body cavity 22 of the living body, and the housing 112 in which the reflective surface 127 is accommodated is brought into close contact with the lesion layer, that is, the surface layer 21 in the vicinity of the target region 30, which is a target heated region. At this time, the housing 11 is moved by the endoscope 180.
It is desirable to confirm the position of No. 2 directly. The main body 11
The position of the target point 40 in the longitudinal direction of 0 is adjusted by moving the entire laser light irradiation device 1 in the longitudinal direction of the main body 110. Also, the main body 11
The position of the target point 40 in the circumferential direction of 0 is
The adjustment can be performed by manually rotating the entire laser light irradiation device 1 or by automatically rotating the same.

When irradiating the laser beam, the reflecting surface 1
27 is reciprocated in the axial direction while changing the angle at a period of 0.1 to 5 Hz, preferably 1 to 3 Hz. In this manner, the optical path of the laser beam is continuously changed, but all are irradiated so as to intersect at the target point 40. Thus, the target point 40 and its vicinity are heated by the irradiated laser beam and reach a predetermined temperature. Thus, while suppressing the temperature rise of the surface layer 21,
Only the temperature within the desired target site 30 can be increased.

The laser light irradiated here is preferably divergent light, parallel light or convergent light. Further, an optical system for turning the laser light into convergent light may be provided in the optical path of the laser light. The laser beam to be used is not particularly limited as long as it has a depth of a living body, but the wavelength is 750 to 750.
1300 nm or 1600 to 1800 nm is preferred. For example, gas lasers such as He-Ne lasers, Nd-
A solid-state laser such as a YAG laser or a semiconductor laser such as a GaAlAs laser can be applied to the laser light generator 2 that generates laser light having the above-mentioned wavelength. The diameter of the insertion portion of the laser beam irradiation device 1, that is, the outer diameter of the main body 110 is not particularly limited as long as it can be inserted into the body cavity 22. However, the outer diameter of the main body 110 is preferably about 2 to 20 mm,
3-8 mm is more preferable.

FIG. 6 is a flowchart showing a method for controlling the heat treatment by laser irradiation in the first embodiment. In the first embodiment, when the patient complains of pain associated with the treatment during the heat treatment, the degree of the pain is determined by the vibration sensor 71 attached to the main body 110 of the laser beam irradiation device 1 (FIG. 1).
If the pain can be alleviated by changing the heat treatment condition, immediately change the treatment condition.If the pain is too severe to be addressed by changing the treatment condition, change the heat treatment condition. The method of stopping immediately is shown. In this example, the patient's pain is caused by the main body 1 of the laser beam irradiation device 1.
The measurement is performed by using the vibration sensor 71 installed at 10.

A program for performing this processing is recorded in, for example, a ROM installed in the control device of FIG.
Run under the control of First, the heat treatment apparatus 10 is operated. Next, in step 10, laser irradiation conditions necessary for the heat treatment are set. The laser irradiation conditions are determined based on biological tissue data such as ultrasonic diagnostics measured in advance, a doctor's treatment experience, and the like. However, in consideration of the degree of pain given to the patient, the laser irradiation conditions are, for example, two conditions of a large amount of heat generated per unit time in the living tissue by laser light irradiation and a small amount of heat generated per unit time in the living tissue. Have prepared. During the heating treatment, the patient oscillates the body conditionally in response to pain, but when the amount of vibration exceeds a certain limit, the threshold vibration amount as a threshold for changing the treatment condition is determined in advance by ROM. To record.

Next, preparation for heat treatment is started. In step 20, the laser beam irradiation time under the treatment condition (1) is input. When the preparation for the treatment is completed, in step 30, the heating treatment by laser irradiation is started. In step 40, the laser irradiation time is measured every predetermined time. In step 50, the body motion generated from the patient is measured using the vibration sensor 71. In step 60, the measured vibration amount is compared with the limit vibration amount. . If the patient's vibration is less than the limit vibration and the heat treatment is not expected to cause excessive pain to the patient, then go to step 70. In step 70, it is checked whether or not the laser light irradiation time has reached the set time. If the set time is exceeded, the treatment is ended. If the treatment time has not been reached, the procedure returns to step 40 to continue the treatment.

In step 60, when the patient suffers severe pain during the heat treatment and exceeds the limit vibration amount, the process immediately proceeds to step 80 to start preparation for changing the treatment condition from (1) to (2). Here, the treatment condition (2) is treated under a milder condition than the treatment condition (1), so that the treatment time becomes longer. Therefore, it is determined in step 80 that the remaining laser irradiation time associated with the change of the treatment condition is recalculated. In step 90, the obtained time is input as the remaining irradiation time, and in step 100, the treatment under the treatment condition (2) is performed. To start. In steps 110 and 120, the amount of vibration is measured using a vibration sensor every predetermined time, and in step 130,
The measured vibration amount is compared with the limit vibration amount. If the vibration amount of the patient is smaller than the limit vibration amount and the heating treatment under the treatment condition (2) does not cause excessive pain to the patient, the process proceeds to step 140. In step 140, it is checked whether or not the laser light irradiation time has reached the set time. If the set time is exceeded, the treatment is ended. If the treatment time has not been reached, the procedure returns to step 110 to continue the treatment. On the other hand, in step 130, even if the patient's pain is severe during the heat treatment and exceeds the limit vibration amount even in the treatment condition (2), the treatment is immediately terminated.

(Embodiment 2) FIG. 7 is a system configuration diagram of Embodiment 2 of a heat treatment apparatus. A description of common points with the first embodiment will be omitted, and only different points will be described. As shown in FIG. 7, the laser beam irradiation device 1 is held by a holding arm 80 fixed to an operating table or the like.
The holding arm 80 has a telescopic part and a rotating part. A displacement sensor 72 is installed in the telescopic part, and an angular displacement sensor 73 is installed in the rotating part. Each sensor is connected to the control device 6. During the heat treatment, if any one of the sensors detects a displacement exceeding a preset allowable displacement value according to the patient's body movement, the control device 6 controls each device by a preset control method. Relieve patient pain during heat treatment. Note that the displacement sensor is suitable for detecting a displacement of the position of the insertion portion, which is harder to detect than the vibration sensor, the speed sensor, and the acceleration sensor.

FIG. 8 is a flowchart showing a method for controlling a heating treatment by laser irradiation in the second embodiment. A description of common points with the first embodiment will be omitted, and only different points will be described. In the first embodiment, one vibration sensor 71 is mounted on the laser beam irradiation device main body 110 to measure the patient's body movement. In the second embodiment, one displacement sensor 72 and four angular displacement sensors 73 are used. The difference is that the body movement of the patient is more accurately measured using the holding arm marked with. The patient displaces the body conditionally in response to pain during the heat treatment, but when the displacement exceeds a certain limit, the threshold displacement and the threshold angular displacement are used as thresholds for changing the treatment conditions. The amount is recorded in the ROM in advance.

In step 55, the body movement of the patient during the heat treatment is measured by the displacement sensor 72 and the angular displacement sensor 73. In step 65, it is determined whether or not one of the measured displacement amount and the angular displacement amount exceeds the limit displacement amount and the limit angular displacement amount. If the patient's body movement is small, the treatment is continued, and the patient's body is If the movement is large and the treatment condition needs to be changed, the treatment is changed to the treatment under the treatment condition (2) in step 80, and the treatment is continued. In step 135, if it is determined that the patient's body motion is large even if the treatment condition (2) is changed and the patient cannot tolerate the pain, the treatment is immediately stopped.

(Embodiment 3) FIG. 9 is a system configuration diagram of the heat treatment apparatus 10 of the present embodiment. A description of common points with the first embodiment will be omitted, and only different points will be described. The flowchart of the method for controlling the heat treatment by laser irradiation according to the present embodiment is the same as that in FIG. 6, and the figure and its description are omitted. In the first embodiment, the vibration sensor 71 is installed on the main body 110 of the laser beam irradiation device 1 to measure the body movement of the patient. In the third embodiment, the belt 9 to which the vibration sensor 71 is attached is attached to the patient. The only difference is that the belt 9 is connected to the control device 6. Thereby, the body motion sensor can be used repeatedly, and the treatment cost is reduced. In addition, there is no increase in the size and weight of the laser beam irradiation device 1 due to the addition of the sensor, and there is no decrease in operability.

Also in the third embodiment, when the vibration sensor 71 detects a vibration exceeding a preset limit vibration value during the heat treatment, the heat treatment condition is changed according to the patient's body movement as in the first embodiment. Or abort. In addition, as the body movement detecting means, in addition to the vibration sensor 71, a speed sensor, an acceleration sensor, an angular velocity sensor, and an angular acceleration sensor may be used alone or in combination. Note that the belt 9 is preferably attached near the insertion position of the laser light irradiation device 1 in order to easily detect the movement of the laser light irradiation device 1.

(Embodiment 4) FIG. 10 is a system configuration diagram of a heat treatment apparatus 10 of the present embodiment, and FIG. 11 is a flowchart showing a heat treatment control method in Embodiment 4. The description of the common points with the first embodiment will be omitted, and only different points will be described. Embodiment 4
The difference between the first embodiment and the first embodiment is that in the first embodiment, the vibration sensor 71 is installed on the laser beam irradiation device main body 110 and the body movement of the patient is measured.
To the housing 112 near the tip of the laser beam irradiation device 1.
Is set on the surface of the cover member 113, and the body movement of the patient is measured by pressure fluctuation. In FIG. 10, the cover member 1
13 is expanded by the cooling liquid and is in contact with the urethra. The pressure sensor 74 is connected to the control device 6. During the heat treatment, when the pressure sensor 74 detects a pressure fluctuation exceeding a preset limit pressure value, the control device 6 controls each device according to a preset control method. Thereby, the pain of the heat treatment can be reduced according to the patient's body movement.

FIG. 11 is a flowchart showing a method of controlling a heating treatment by laser irradiation in the fourth embodiment. The description of the common points with the first embodiment will be omitted, and only different points will be described. In the first embodiment, the body movement of the patient is measured using the vibration sensor 71. In the fourth embodiment, however, the housing 1 near the tip of the laser beam irradiation device 1 is used.
12 pressure sensor 74 installed on the surface of cover member 113
Is different. Note that the limit pressure value is R
Record in OM.

At step 56, the body movement of the patient during the heat treatment is measured by the pressure sensor 74. In step 66, it is determined whether the measured pressure has exceeded the limit pressure. If the patient's body movement is small, the treatment is continued, and if the patient's body movement is large and the treatment condition needs to be changed, step 80 is executed. Then, the treatment is changed to the treatment according to the treatment condition (2), and the treatment is continued. If it is determined in step 136 that the patient's body motion is large even if the treatment condition (2) is changed and the patient cannot withstand the pain, the treatment is immediately stopped.

(Embodiment 5) FIG. 12 is a system configuration diagram of the heat treatment apparatus 10 of the present embodiment. The description of the common points with the first embodiment will be omitted, and only different points will be described. The difference between the fifth embodiment and the first embodiment is that, in the first embodiment, the vibration sensor 71 is installed on the laser beam irradiation device main body 110 to measure the body movement of the patient. The point is that the temperature sensor 75 connected in series is installed on the laser irradiation device and the resistance change accompanying the body movement of the patient is measured. During the heat treatment, when the temperature sensor 75 detects a temperature change exceeding a preset limit temperature, the control device 6 controls each device according to a preset control method. Thereby, the pain of the heat treatment can be reduced according to the patient's body movement.

FIG. 13 is a flowchart showing a method for controlling a heating treatment by laser irradiation in the fifth embodiment. The description of the common points with the first embodiment will be omitted, and only different points will be described. In step 57, the body movement of the patient during the heat treatment is measured by the temperature sensor 75. In step 67, it is determined whether the measured temperature has exceeded the limit temperature, and if the patient's body movement is small, treatment is continued,
When the patient's body motion is large and the treatment condition needs to be changed, the treatment is changed to the treatment under the treatment condition (2) in step 80, and the treatment is continued. In step 137, if it is determined that the patient's body motion is large and the patient cannot tolerate the pain even after changing to the treatment condition (2), the treatment is immediately stopped. In addition, as the body movement detecting means, in addition to the temperature sensor 75, an optical sensor and a pressure sensor may be used alone or in combination.

The heat treatment apparatus of the present invention reduces the damage caused by heating normal tissues such as the urethra and the rectum near the prostate, such as prostate diseases such as benign prostatic hyperplasia and prostate cancer. It is preferable to apply when only the inside is subjected to heat treatment.

[0033]

Other Embodiments The embodiments described above are not described to limit the present invention, and various modifications can be made by those skilled in the art within the technical idea of the present invention. In addition, as the energy applied to the living tissue, laser light has been described as an example, but the present invention is not limited to this, and includes, for example, microwaves, radio waves, ultrasonic waves, and the like. . Further, by forming the housing 112 from a material having good laser permeability, the cover member 113 can be formed.
And may be formed integrally. As a result, the number of components can be reduced, the assembly is facilitated, and the manufacturing cost is reduced.

The cover member 113 may be made of a material having high elasticity, so that the cover member 113 may have a balloon structure which is inflated by a cooling liquid. Thereby, the adhesion to the living body surface layer is improved, and the cooling effect of the cooling liquid on the living body surface layer is improved. Further, the cover member 113 may cover the entire body.
This eliminates the step of the main body at the end of the cover, and facilitates insertion into the living body.

[0035]

According to the present invention, when the irradiation position is shifted during the heat treatment, the heat treatment is automatically interrupted or controlled, so that it is possible to prevent the damage to the normal tissue around the lesion and to prevent the operator from being damaged. The burden of is reduced. In addition, the heat treatment condition is changed according to the movement of the patient, so that the pain of the patient during the heat treatment can be reduced, and treatment interruption due to the pain is reduced.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a heat treatment apparatus 10 according to a first embodiment.

FIG. 2 is a cross-sectional view of the vicinity of a front end of the laser beam irradiation device main body 110 of the first embodiment.

FIG. 3 is a perspective view for explaining a structure of a reflecting portion reflecting surface 127 and an arm 116 of the laser beam irradiation device 1.

FIG. 4 is a diagram for explaining a relationship between a movement of a reflecting portion reflecting surface 127 of the laser light irradiation device 1 and a laser light application direction.

FIG. 5 is a cross-sectional view illustrating an example of use of the laser light irradiation device 1 and shows a vicinity of a distal end inserted into a living tissue.

FIG. 6 is a flowchart illustrating a control method of heat treatment by laser irradiation according to the first embodiment.

FIG. 7 is a system configuration diagram of the heat treatment apparatus 10 according to the second embodiment.

FIG. 8 is a flowchart illustrating a control method of heat treatment by laser irradiation according to the second embodiment.

FIG. 9 is a system configuration diagram of the heat treatment apparatus 10 according to the third embodiment.

FIG. 10 is a system configuration diagram of the heat treatment apparatus according to the fourth embodiment.

FIG. 11 is a flowchart illustrating a control method of heat treatment by laser irradiation according to the fourth embodiment.

FIG. 12 is a system configuration diagram of the heat treatment apparatus 10 according to the fifth embodiment.

FIG. 13 is a flowchart showing a method for changing heat treatment conditions according to a patient's body movement during heat treatment according to the fifth embodiment.

[Explanation of main symbols]

 DESCRIPTION OF SYMBOLS 10 Heat treatment apparatus 1 Laser beam irradiation apparatus 71 Vibration sensor 110 Main body 112 Housing 118 Optical fiber 150 Drive unit 185 Coolant feed tube 186 Coolant return tube 188 Motor 189 Cable 2 Laser light generator 3 Drive power supply 4 Coolant circulation device Reference Signs List 5 Coolant temperature controller 6 Control device 20 Living tissue 21 Surface layer 30 Target site 40 Target point

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61N 5/02 A61B 17/36 330 5/06 340 350 F Term (Reference) 4C026 AA04 BB04 BB07 BB08 DD03 DD06 FF17 FF34 GG06 HH06 HH24 4C060 JJ15 JJ17 JJ24 JJ25 JJ27 JJ29 KK47 4C061 AA01 AA02 AA15 AA22 AA24 BB00 CC00 DD00 HH56 HH60 JJ17 4C082 MA02 MC05 ME03 ME17 ME18 ME21 MG05 RE03 RE06 RC03 RE06 RC03 RE06 RC03 RE06 RC03 RC06 JA11 JA13 LA22 LA27 PA08 PA10

Claims (9)

[Claims] 1. A heat treatment apparatus that inserts an insertion portion into a living body and irradiates energy into the living body from the insertion portion to perform heat treatment, and detects a displacement generated in the insertion portion due to movement of the living body. A heat treatment apparatus, comprising: a living body displacement detecting unit that performs heating treatment; and a control unit that controls heating treatment based on a value detected by the living body displacement detecting unit. 2. The living body displacement detecting means includes a vibration sensor,
The heat treatment apparatus according to claim 1, further comprising at least one of a displacement sensor, a speed sensor, an acceleration sensor, an angular displacement sensor, an angular velocity sensor, an angular acceleration sensor, a pressure sensor, a temperature sensor, and an optical sensor. . 3. The control means for controlling the heat treatment, wherein the control means for relaxing the heat treatment condition when the detected value obtained by the living body displacement detection means exceeds a preset threshold value, and suspends the heat treatment. The heat treatment apparatus according to claim 1, further comprising at least one of control means for performing the heat treatment. 4. A living body tissue, comprising: a long insertion portion inserted into a living body, and irradiating energy light toward a living tissue from a reflecting surface of a reflecting portion provided on the insertion portion. 2. The heat treatment apparatus according to 1. 5. The heat treatment apparatus according to claim 4, further comprising cooling means for cooling the insertion portion. 6. The heat treatment apparatus according to claim 4, wherein the reflecting surface reflects the energy in a direction perpendicular to a longitudinal direction of the insertion portion. 7. A moving means for moving the position of the reflecting portion reflecting surface in the axial direction of the insertion portion, and changing a reflection angle of the reflecting portion reflecting surface in accordance with the axial movement of the reflecting portion reflecting surface. The heat treatment apparatus according to claim 4, further comprising an interlocking unit. 8. The reflector according to claim 4, wherein the reflecting surface is enclosed by a balloon through which cooling water can flow.
The heat treatment apparatus according to claim 7. 9. The heat treatment apparatus according to claim 1, wherein the energy is irradiated by a laser beam.