JP2003210482A - Heating treatment instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating treatment instrument of simple structure and high efficiency. <P>SOLUTION: This heating treatment instrument 1 is provided with a heating means 3 built in the tip part of an elongate probe means 5 insertable in an inner cavity of an organism, and a transfer means 4 with a high heat transfer ratio of heat generated from the heating means 3 and with a large contact area contacting the inner cavity tissue of the organism. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat treatment instrument for coagulating or cauterizing a desired position of a living body.

[0002]

2. Description of the Related Art Conventionally, as a coagulation device which is inserted endoscopically into the digestive tract or percutaneously into the abdominal cavity, for example, an ablation probe as disclosed in Japanese Patent Laid-Open No. 61-128957. was there. The outer diameter of the tip of the probe is almost the same as the insertion portion of the probe and is hollow, and is formed into a hard elongated cap shape. The cap-shaped member is made of a material having a high thermal conductivity, and inside the cap-shaped member, a heating element that generates heat by the energy supplied from the power source connected to the base end of the probe through the coaxial cable is disposed. That is, in such a probe, the heating element generates heat due to the current supplied from the power source, and this heat is conducted to the cap-shaped member.

As a device having a structure similar to this ablation probe, for example, there is a thermotherapy device (probe) disclosed in Japanese Utility Model Laid-Open No. 62-197323. In this probe, a balloon is provided around the cap-shaped member covering the heating element disclosed in JP-A-61-128957. A fluid is put between the balloon and the cap-shaped member, and the cap-shaped member is heated to heat the fluid, whereby the inner wall of the balloon is uniformly heated and the outer wall is also heated.

[0004]

However, JP-A-61-161
Regarding the probe disclosed in Japanese Patent No. 128957,
Since the tip of the probe inserted into the living tissue is made of a rigid cap-shaped member, the contact area with the living tissue cannot be made larger than the area of the cap-shaped member, and a relatively wide range can be made uniform at once. It is difficult to heat.

Further, the probe disclosed in Japanese Utility Model Laid-Open No. 62-197323 needs to heat the fluid in the balloon, so that the thermal efficiency is poor and it is difficult to quickly raise the temperature of the balloon. In addition, it is difficult to control the temperature with high temperature to generate a high temperature at which the tissue can be solidified and cauterized. Further, since it is necessary to supply and fill the fluid in the balloon, a water supply means and a fluid source are required, so that the system configuration becomes complicated and large.

The present invention has been made to solve the above problems, and an object thereof is to provide a heating treatment tool having a simple structure and high thermal efficiency. In particular, to provide a heat treatment instrument capable of reliably contacting a part or whole area of the inner cavity (inner wall) of an organ having a lumen and capable of heating uniformly or almost uniformly and rapidly to a desired temperature. With the goal.

[0007]

In order to solve the above-mentioned problems, the heat treatment device of the present invention comprises a heat generating means incorporated in the distal end portion of an elongated probe means which can be inserted into the lumen of a living body, and the heat generating means. It is characterized by comprising a metal transfer means having a high heat transfer coefficient for the heat generated and having a large contact area for contact with the luminal tissue of the living body.

With this structure, the heat generated by the small heat generating means is quickly transmitted to the transmitting means made of a material having a high thermal conductivity, and the transmitting means comes into contact with a relatively wide area of the tissue. By doing so, the contacted tissue is heated uniformly or substantially uniformly.

Further, it is preferable that a control means for controlling the heat transfer temperature transferred from the transfer means to the living tissue is further provided.

With such a structure, the temperature of the transmission means and / or the heat generation means is controlled by the control means, and these are accurately maintained at desired temperatures.

Further, it is preferable that the transmitting means is made of metal fibers.

With this structure, the heat generated from the heat generating means is transmitted to the outside through the metal fiber.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] First, a first embodiment will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the main body of a coagulation device (heat treatment tool) 1 according to this embodiment is provided with an elongated, flexible soft sheath 2. Further, the coagulation part 3 is arranged at the distal end of the sheath 2, and the power source part 100 is arranged at the proximal end.

Further, as shown in FIG. 2, a coaxial cable 10 is arranged inside the sheath 2. Although the base end of the coaxial cable 10 is not shown, the power supply unit 100 described above is used.
And the coaxial cable 10 can be supplied with an electric current. The tip of the coaxial cable 10 is connected to the probe section 5. The treatment section 4 is disposed on the outer peripheral portion of the probe section 5. That is, the coagulation unit 3 includes the treatment unit 4 and the probe unit 5.

At the base end of the main body 6 of the probe section 5, a through hole is formed so as to penetrate the coaxial cable 10.
Further, an engaging portion which is engaged with the sheath 2 is provided on the outer peripheral portion of the base end portion of the through hole. Further, the tip portion of the through hole has a cup-shaped space 11 having a larger diameter than the through hole. Furthermore, this space 1
A recess 15 is provided in the outer peripheral portion of the main body 6 between 1 and the base end of the through hole. A cylindrical heat transfer member 8 is arranged at the tip of the space 11. The outer diameters of the heat transfer member 8 and the main body 6 are preferably the same or substantially the same. A columnar heating element 9 is connected to the heat transfer member 8 toward the space 11 by, for example, solder 13. The core wire 10a and the outer wire 1 at the tip of the coaxial cable 10 penetrating through the through hole of the main body 6 of the probe unit 5 are connected to the bipolar terminals of the heating element 9.
0b is electrically connected. Also, these core wires 1
0a and the outer wire 10b have an insulating structure by an insulator 12. The heating element 9 is energized by the power supply unit 100 connected to the base end of the coaxial cable 10 to generate heat. The heating element 9 includes a thin film resistor provided with a thin film resistor by a thin film film forming technique such as sputtering, or a thick film resistor provided with a thick film resistor by a thick film film forming technique such as a printing method. There is.

Further, the outer peripheral portions of the heat transfer member 8 and the main body 6 are covered with a hollow cylindrical cap-shaped member 7. The tip of the cap-shaped member 7 is formed in a hemispherical shape and is closed. The base end of the cap-shaped member 7 is engaged with the recess 15 described above. Further, the heat transfer member 8 and the cap-shaped member 7 are joined by solder 13. By providing the solder 13, the thermal conductivity can be improved. The above-mentioned solder 13 can be replaced with a conductor such as silver paste.

A water supply passage 14 is provided between the main body 6 and the cap-shaped member 7. The water supply passage 14 is connected between the lumen of the sheath 2 and the coaxial cable 10. Further, for example, a coating 16 made of a fluororesin material such as polytetrafluoroethylene is applied to the outer peripheral portion of the cap-shaped member 7 in order to prevent contamination of living tissue.

The treatment portion 4 is provided with a copper fiber 17 formed in a ball shape around the probe portion 5, and a convex portion 18 for holding the copper fiber 17 and engaging with the main body 6. The convex portion 18 is formed of an elastic member such as a wire and is elastically deformable. Therefore, the treatment section 4 is formed so as to be attachable to and detachable from the probe section 5. Further, it is preferable that the copper fibers 17 are woven, for example, so-called steel scrubber. That is, the copper fiber 17 has elasticity. To prevent sticking of living tissue to the outer surface of each fiber,
A coating 19 made of a fluororesin material or the like is applied. The fiber is not limited to the copper fiber 17, and is preferably a steel fiber made of a material having high thermal conductivity such as copper alloy, tungsten, or brass.

The coagulation device 1 is used by being inserted endoscopically into the digestive tract or inserted into the abdominal cavity via a trocar (not shown) punctured into the abdominal cavity. In the case of the latter, in order to improve operability, 300 from the tip of the sheath 2
It is preferable that the film has a hardness of about mm.

As shown in FIG. 3, the coagulation apparatus 1 thus inserted into the body cavity presses the treatment section 4 against a tissue such as a bleeding site. Then, when the power supply unit 100 is operated to cause the heating element 9 to generate heat, the heat transfer member 8, the cap-shaped member, and the copper fiber 17 are thermally conducted in this order. When the copper fibers 17 generate heat, the tissue can be coagulated or the blood can be stopped. It should be noted that water may be supplied from the water supply passage 14 to wash the tissue such as the bleeding site in advance.

Therefore, the following can be said with respect to this embodiment. When the treatment section 4 of the coagulation device 1 is pressed against the living tissue, the copper fibers 17 of the treatment section 4 are freely deformed, and even uneven tissue can be easily brought into close contact with the living tissue. You can In addition, before and after the treatment and / or during the treatment, water can be supplied from the water supply passage 14 to wash the tissue such as the bleeding site. Further, since the treatment section 4 is formed so as to be detachable from the probe section 5, it can be easily replaced when the treatment section 4 is damaged or deteriorated, and the cost can be kept low.

As a modification of this embodiment, as shown in FIG. 4, a copper fiber 17 is provided in the treatment section 4 of the solidification section 3.
Alternatively, for example, a flexible coil-shaped member 20 may be used. Inside the coil-shaped member 20, the probe portion 5
Are similarly arranged. That is, the heat can be conducted similarly to the coagulation device 1 described above to treat the tissue.

[Second Embodiment] Next, a second embodiment will be described with reference to FIGS. 5 and 6. As shown in FIG. 5, the armpit odor treatment probe (heat treatment tool) 201 according to the present embodiment includes an insertion portion 202 made of a metal material. The insertion portion 202 is formed in a hollow cylindrical shape. In addition, the treatment section 2 is provided at the tip of the insertion section 202.
04 is provided, and the operation unit 20 of the treatment unit 204 is provided at the rear end.
3 is provided. A lead wire 206 further extends to the rear end side of the operation portion 203. This lead wire 206
Is connected to a power supply device (not shown) at the rear end side.

As shown in FIG. 6, a columnar heating element 205 is provided integrally with the insertion portion 202 in the inner cavity on the distal end side of the insertion portion 202. This heating element 205
A lead wire 206 is arranged and extends on the rear end side.
This lead wire 206 passes through the inner cavity of the insertion portion 202, and
As shown in FIG. 5, the operation portion 203 extends from the rear end portion.

Further, as shown in FIG. 6, a probe 207 made of a metal material is provided on the treatment section 204 at the tip of the insertion section 202. These probe 207 has an arm portion 20.
8 extends in a rake shape from the distal end side of the insertion portion 202. Further, a spherical tip treatment portion 209 is formed at each tip of these arm portions 208.

Next, such an axillary odor treatment probe 2
The treatment for treating axillary odor using 01 will be described. First, the axillary odor treatment probe 201 is inserted from the tip side of a skin incision (not shown) added to the patient's armpit. Then, the treatment portion 204 of the axillary odor treatment probe 201 is placed on the affected portion (the site of the cauterizing sweat glands). Here, the heating element 2 is connected from the power supply device through the lead wire 206.
A current is supplied to 05 to heat the heating element 205. This heat is transmitted to the distal treatment section 209 via the distal end of the insertion section 202 and the arm section 208. Therefore, the sweat glands contacting the distal treatment section 209 are cauterized.

In this axillary odor treatment probe 201, the heat (temperature) generated in the heating element 205 is controlled by controlling the current supplied from the power supply device to the heating element 205.
Are in control.

Therefore, the following can be said with respect to this embodiment. It is possible to provide the probe 201 for treating axillary odor, which is highly safe because the temperature can be freely controlled during cauterization of sweat glands.

[Third Embodiment] Next, a third embodiment will be described with reference to FIGS. 7 and 8. As shown in FIG. 7, as a tissue heating tool according to this embodiment, a treatment tool (heat treatment tool) 301 is connected to a power supply device 303 via at least a tube 302 that can expand and contract in the radial direction. In addition, the treatment tool 301 is a bag-like device 304.
And heating portions 305 and 306.

As shown in FIG. 8, these heat generating portions 305,
Heaters 307 and 308 are provided in 306, respectively. These heaters 307 and 308 are the probes 30.
9, the heaters 307 and 308 move integrally with the probe 309. The probe 309 has a role of supplying electric power to the heaters 307 and 308 and a role of supplying a fluid to the balloon 310 described later.

The bag-like instrument 304 having such a structure is used in the probe 30.
By the forward / backward movement of 9, the tube 302 can be taken in and out (stored and taken out). Further, a balloon 310 which is in close contact with the heat generating portions 305 and 306 and is capable of contraction is provided. A heat insulating material 313 that covers the heaters 307 and 308 is provided on the inner circumference of the balloon 310. On the other hand, on the outer circumference of the balloon 310, a net 311 made of a member having high thermal conductivity is arranged. The net 311 interlocks and contracts when the balloon 310 contracts. The net 311 is preferably made of a metal material having high thermal conductivity such as copper, silver, gold, tungsten, molybdenum. In addition, a coating 312 such as a fluororesin material is applied to the outer periphery of the net 311 so that it is non-adhesive to, for example, living tissue.

As described above, with the bag-shaped device 304 housed inside the tube 302, the treatment tool 301 is inserted to the vicinity of the site to be treated in the body cavity. And probe 3
09 is extruded from the tube 302 and fluid is applied to the probe 30.
9 is supplied to the balloon 310, and the balloon 310 and the heat insulating material 313 are expanded. Therefore, the net 311 expands. With the balloon 310, the net 311, and the heat insulating material 313 inflated in this manner, the power supply device 303,
The heaters 307 and 308 are energized through the tube 302 and the probe 309, and the heaters 307 and 308 are energized.
Heat 8 The net 311 is heated by the heat generated by the heaters 307 and 308. In this state, the bag-shaped instrument 304 is pressed against the tissue to be treated, and treatment such as cauterization is performed. By controlling the power supply device 303, the output to the heaters 307 and 308 changes, and the net 311
Temperature is controlled. Since the net 311 is made of a material having high thermal conductivity as described above, the temperature of the net 311 becomes uniform or almost uniform.

In this case, since the inside of the balloon 310 is covered with the heat insulating material 313, heat dissipation is prevented and heat can be efficiently supplied to the tissue. Further, in this case, since the fluorocarbon resin coating 312 is applied to the outer periphery of the net 311, it is possible to prevent the tissue from sticking to the net 311.

Therefore, the following can be said with respect to this embodiment. Net 311 made of material with high thermal conductivity
Since it is not necessary to provide a large number of heaters 307 and 308 and stable heat can be supplied, the treatment tool 301 can be provided at low cost.

[Fourth Embodiment] Next, a fourth embodiment will be described with reference to FIGS. 9 and 10. This embodiment is a modification of the third embodiment, and the same terms and / or symbols are used for the same members, and detailed description thereof is omitted.

As shown in FIG. 9, a treatment tool (heating treatment tool) 301 according to this embodiment is similar to that of the third embodiment in that a power supply unit (at least through a tube 320 that is expandable and contractible in the radial direction). (Not shown). Also,
The bag-shaped device 304 includes a probe 319 inserted into the tube 320, heaters 314 and 315, and a net 317.
It has and. Further, as shown in FIG. 10, heat insulating materials 321 and 322 are arranged around the heaters 314 and 315 attached to the probe 319, respectively.
In addition, a spring 3 is attached to each segment forming the net 317.
16 are provided. Each of these springs 316 is biased toward the outside of the net 317. further,
The net 317 is coated with a coating 318 such as a fluororesin material. Therefore, the net 317
The outer surface of the is non-adhesive to living tissue, for example.

Such a treatment tool 301 includes a probe 31.
9 can be taken in and out of the tube 320. That is, the bag-like device 304 can be housed in the tube 320 together with the probe 319.

With the bag-shaped device 304 housed inside the tube 320, the treatment tool 301 is inserted up to the vicinity of the site to be treated in the body cavity. Then, the probe 319 is pushed out from the tube 320, and the urging force of the spring 316 expands the net 317 between the springs 316. For this reason,
The net 317 expands. With the net 317 inflated in this manner, the heaters 314 and 315 are energized through the power supply device, the tube 320 and the probe 319 to cause the heaters 314 and 315 to generate heat. The heat generated by these heaters 314 and 315 heats the net 317. In this state, the bag-shaped device 304 is attached to the tissue to be treated.
Press and apply treatment such as cauterization.

Therefore, the following can be said with respect to this embodiment. By providing the heat insulating materials 321 and 322, it is possible to prevent heat from being radiated to other than the net 317. Also, by using the spring 316,
The device can be simplified.

[Fifth Embodiment] Next, a fifth embodiment will be described with reference to FIG. This embodiment is a modification of the fourth embodiment, and the same terms and / or symbols are used for the same members, and detailed description thereof will be omitted.

As shown in FIG. 11, a treatment tool (heating treatment tool) 301 according to this embodiment is a tube 329 that is expandable / contractible at least in the radial direction, as in the fourth embodiment.
Is connected to a power supply device (not shown). In addition, the bag-like instrument 304 includes a probe 325 inserted into the tube 329, heaters 323 and 324, and a plurality of wires 326. Further, heat insulating materials 327 and 328 are arranged around the heaters 323 and 324 attached to the probe 325, respectively. It is preferable that each wire 326 is made of a shape memory alloy in which the outwardly swollen shape is stored. That is,
When these wires 326 rise above a certain temperature,
Even in the deformed state, it becomes the memorized state. Therefore, the probe 325 is taken in and out from the tube 329, and the temperature of the wire 326 is raised to a predetermined temperature, whereby the wire 326 is opened and closed.

With the bag-shaped device 304 accommodated in the tube 329, the treatment tool 301 is inserted into the body cavity up to the vicinity of the portion to be treated. Then, when the probe 325 is pushed out from the tube 329, the wire 3 in a deformed state
26 (pouch device 304) is extruded. The heaters 323, 32 are connected to these wires 326 via the probe 325.
4 is energized to cause the heaters 323 and 324 to generate heat. Then, the wire 326 is heated and has a memorized shape. That is, the bag-like device 304 expands.
In this state, the treatment tool 301 is pressed against the tissue to be treated, and treatment such as cauterization is performed as in the fourth embodiment.

[Sixth Embodiment] Next, a sixth embodiment will be described with reference to FIGS. As shown in FIG. 12, a coagulation device (heat treatment tool) 601 according to this embodiment includes a probe 602 and a power supply device 603 connected to the base end of the probe 602. The probe 602 includes a tip portion 604 and an elongated insertion portion 605 connected to the proximal side of the tip portion 604. Further, an energizing connector 606 and a balloon inflating connector 607 are provided on the proximal side of the insertion portion 605.

As shown in FIG. 13, the tip portion 604 has a balloon 608 which can be inflated and deflated, and the balloon 60.
8 is provided with a heater 609 on the back surface (inner surface). Further, an end portion of a tube 610 communicating with the balloon inflating connector 607 is opened on the proximal side of the balloon 608.

As shown in FIGS. 13 and 14, the balloon 608 has an outer wall 611 and an inner wall 612, and is formed in a double structure. As shown in FIG. 14, these outer walls 6
A heater 609 is arranged between the inner wall 11 and the inner wall 612. As shown in FIG. 13, the heater 609 is partially fixed by a heater fastening member 613 and is followed when the balloon 608 is deflated. Also, the heater 609
Can freely move between the outer wall 611 and the inner wall 612 except for the portion fixed by the heater fastening member 613.

As shown in FIG. 15, the heater 609 is a wire-shaped PTC (Positive Te).
It is preferably composed of a temperature heater. This heater 609 is
The heating element 615 is covered with two wires 613 and 614. As shown in FIG. 12, these wires 61
A current-carrying connector 606 is arranged at the ends of 3, 614,
When the power supply device 603 energizes the energization connector 606, the heating element 615 provided between the wires 613 and 614 is energized.

Therefore, the heating element 615 generates heat due to electric resistance. The heating element 615 has, for example, a structure in which a resin material is impregnated with carbon, and when the temperature of the heating element 615 rises and approaches a set temperature, the electric resistance value of the heating element 615 rapidly increases and self-temperature control is performed. It The heat generation temperature of the wire-shaped PTC heater is preferably about 40 ° C. to 90 ° C. when the above resin material is used.

The probe 602 of the coagulation device is inserted into the lumen of a tubular tissue such as the uterus or blood vessel. This probe 6
After inserting 02, a balloon 608 is supplied with a balloon inflation medium (for example, physiological saline, carbon dioxide, etc.) from the power supply device 603 via the balloon inflation connector 607 and the tube 610.
Send in.

After inflation of the balloon 608, the energizing connector 6
The heater 609 is energized via 06 to heat the heater 609. The heater 609 is pressed against the outer wall 611 by the expansion of the balloon 608, and heat is transferred to the outer surface of the balloon 608. Also, the balloon 608
When a physiological saline solution is used to expand the liquid, the physiological saline solution is also heated by the heater 609.

The heater 609 is self-temperature controlled over its entire length. That is, in the longitudinal direction of the heater 609, the electric resistance value becomes low at a part where the temperature is low,
The temperature is controlled to approach the set temperature, temperature unevenness in the longitudinal direction is prevented, and the temperature is uniform or almost uniform over the entire length.

After the lumen of the tubular tissue is coagulated, the power supply is stopped and the balloon 608 is deflated to remove the probe 602 from the tissue.

Therefore, the following can be said with respect to this embodiment. Although the temperature sensor is unnecessary and the structure is simple, the accuracy of temperature control using the probe 602 can be increased. Further, since the upper limit of the heat generation temperature is structurally determined, it is possible to provide the coagulation device 601 with high safety without being overheated more than necessary.

[Seventh Embodiment] Next, a seventh embodiment will be described with reference to FIGS. As shown in FIG. 16, a light source 702 for observation and a television camera 703 are connected to a main body 701 of the endoscope. Further, the main body 701 has a heating element 708 described later.
A treatment power supply 704 for controlling heat generation and temperature control is connected.

As shown in FIG. 17, an illumination ride guide emission end 705 is provided on the distal end surface of the distal end portion 707 of the endoscope insertion portion.
And an observation lens 706. A ring-shaped heating element 708 is provided on the proximal side of the distal end portion 707 of the endoscope insertion portion. At least one heat generating portion 709 is formed on these heat generating elements 708. In addition, the heat generating portion 709 has a heat generating pattern of the heat generating element 70.
It is preferable that it is printed on No. 8.

As shown in FIG. 18, the heating element 708 has a heating portion 709 formed in a ring-shaped insulating / protective layer 710. A lead wire 711 is projected from each heat generating portion 709. Each lead wire 71
1 is a power source for treatment 70 that extends to the hand inside the insertion portion of the endoscope.
4 has been contacted. Each lead wire 711 is covered with an insulating tube 712.

The heat generating portion 709 of the heat generating element 708 rises to a high temperature of about 300 ° C. when a current of several W to several tens of W is applied, so that when the heat generating portion 709 is brought into contact with a bleeding portion or a lesioned portion, Hemostasis, coagulation and cauterization of tissues are possible.

Therefore, the following can be said with respect to this embodiment. The current required to generate heat in the heat generating portion 709 is about several W to several tens of W, which is significantly smaller than that of a high-frequency treatment tool (not shown) or the like, so that the surroundings of the heat generating element 708 and the lead wire 711. It is only necessary to provide a simple insulator. Therefore, the insertion part of the endoscope is thin,
It can have a flexible structure.

Although some embodiments have been specifically described with reference to the drawings, the present invention is not limited to the above-described embodiments, and is carried out without departing from the scope of the invention. Includes all implementations.

According to the above description, the invention of the following matters can be obtained. Also, a combination of each term is possible.

[Supplementary Note] (Supplementary Note 1) A small heat generating means provided at the tip of the probe means that can be inserted into the lumen of the living body, and the heat generated by this heat generating means is substantially uniform over the surface tissue of the lumen of the living body. And a control means for controlling the temperature of the surface of the lumen tissue heated by the heat generating means or the transmitting means, or the heat generating means.

(Supplementary Note 2) The heat treatment instrument according to Supplementary Note 1, wherein the transmitting means is formed of metal fibers in a ball shape.

(Supplementary Note 3) The heat treatment instrument according to Supplementary Note 1, wherein the transmitting means comprises a plurality of metallic probes.

(Supplementary Note 4) The heat treatment instrument according to Supplementary Note 1, wherein the transmitting means is made of a stretchable metal net.

(Supplementary Note 5) The heat treatment instrument according to Supplementary Note 1, wherein the transmitting means is a wire-shaped heater arranged along a stretchable balloon.

(Supplementary Note 6) The heat treatment instrument according to Supplementary Note 1, wherein the transmitting means is a ring-shaped element provided on the outer peripheral surface of the insertion portion of the endoscope.

[0067]

As described above, according to the present invention, it is possible to provide a heating treatment tool having a simple structure and high efficiency.

In particular, there is provided a heat treatment tool capable of reliably contacting a part or the whole of the inner cavity (inner wall) of an organ having a lumen and capable of heating uniformly or almost uniformly and rapidly to a desired temperature. Can be provided.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a configuration of a coagulation device according to a first embodiment.

FIG. 2 is a sectional view showing a tip end portion of the coagulation device according to the first embodiment.

FIG. 3 is a schematic diagram showing a case where a coagulation device is pressed against the tissue according to the first embodiment to perform treatment.

FIG. 4 is a schematic view showing a modified example of the tip end portion of the coagulation device according to the first embodiment.

FIG. 5 is a perspective view showing an overall configuration of an axillary odor treatment probe according to a second embodiment.

6 is a perspective view showing a treatment portion provided at the tip of the axillary odor treatment probe shown in FIG.

FIG. 7 is a schematic diagram showing a configuration of a treatment tool according to a third embodiment.

8 is a cross-sectional view showing the internal structure of the bag-like instrument of the treatment instrument shown in FIG.

FIG. 9 is a schematic diagram showing a configuration of a treatment tool according to a fourth embodiment.

FIG. 10 is a cross-sectional view showing the internal structure of the bag-like instrument of the treatment tool shown in FIG.

FIG. 11 is a schematic diagram showing a configuration of a treatment tool according to a fifth embodiment.

FIG. 12 is a schematic diagram showing a configuration of a coagulation device according to a sixth embodiment.

FIG. 13 is a cross-sectional view of the tip portion of the coagulation device shown in FIG.

14 is a partial cross-sectional view taken along the line AA shown in FIG.

15 is a sectional view of the heater shown in FIG.

FIG. 16 is a schematic diagram showing the configuration of an endoscope system according to a seventh embodiment.

FIG. 17 is a schematic view showing the distal end portion of the insertion portion of the endoscope shown in FIG.

FIG. 18 is a schematic vertical sectional view of the insertion portion shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Coagulation device, 3 ... Coagulation part, 4 ... Treatment part, 5 ... Probe part, 7 ... Cap, 8 ... Heat transfer member (transfer means), 9 ... Heating element (heating means), 10 ... Coaxial cable, 10a ... Core wire, 10b ... Outer wire, 201 ... Axillary odor treatment probe, 2
04 ... Treatment part, 205 ... Heating element (heating means), 301
... treatment tool, 304 ... bag-like instrument (transmission means), 305, 3
06 ... Heat generating part (heat generating means), 307, 308 ... Heater, 309 ... Probe (transmitting means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hidetoshi Saito             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Yoshitaka Honda             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Koji Iida             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Chie Taniuchi             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Hitoshi Karasawa             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Takefumi Uesugi             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Toshiya Sugai             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Kenichi Kimura             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Toru Shinmura             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. (72) Inventor Takeaki Nakamura             2-43 Hatagaya, Shibuya-ku, Tokyo Ori             Inside Npus Optical Industry Co., Ltd. F-term (reference) 4C060 KK47 MM24 MM26

Claims (3)

[Claims] 1. A heat generating means built in a distal end portion of an elongated probe means that can be inserted into a lumen of a living body, and a contact which comes into contact with the lumen tissue of the living body because of high heat transfer coefficient of heat generated from the heat generating means. A heat treatment instrument comprising: a metal transmission means having a large area; 2. The heat treatment instrument according to claim 1, further comprising a control means for controlling a heat transfer temperature transferred from the transfer means to the living tissue. 3. The heat treatment instrument according to claim 1, wherein metal fibers are gathered together in the transmitting means.