JPS6219863B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a medical thermal treatment device that partially heats and treats an affected area within a body cavity.

Recently, it has been revealed that human cancer cells are extremely sensitive to high temperatures compared to normal cells. In other words, it was discovered that cancer cells suddenly lose their vigor when the temperature exceeds 40°C, whereas normal cells are safe.

Therefore, using a conventional endoscope, warm air or hot water is blown onto the affected area within the body cavity through its air and water supply channel, while hot air or hot water is collected through its suction channel to only target the affected area within the body cavity. It is possible to heat it.

However, with this heating method that uses an endoscope to blow hot air or hot water, it is difficult to partially heat the affected area within the body cavity, and it is difficult to maintain the necessary constant temperature over a long period of time. Although this is possible, it also causes great fatigue for the operator and patient. Therefore, it is not possible to kill only cancer cells by partially maintaining a constant temperature.

On the other hand, a commonly used method is to guide an electric scalpel into the body cavity through an endoscope channel to resect the lesion, but the original purpose of this method was to surgically remove the lesion. Therefore, the temperature of the part that comes into contact with the electric scalpel is several hundred degrees. For this reason,
If it accidentally comes into contact with normal tissue, there is a risk that the cells in that area will die. Furthermore, the endoscope must be inserted into the body cavity until the treatment is completed, which causes a lot of fatigue for both the operator and the patient.In particular, when the operator becomes fatigued, areas other than the affected area may also be treated. There was a danger of it being lost. In other words, it is not a safe method.

The present invention has been made in view of the above circumstances, and its purpose is to be able to stably heat only the affected area within the body cavity at a constant temperature over a long period of time, and to reduce the fatigue of the operator and the patient. The purpose of the present invention is to provide a medical heat treatment device that allows safe treatment with less pain.

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

FIG. 1 shows a medical thermal treatment device 1 showing one embodiment of the present invention. This medical thermal treatment device 1 is provided with a heating electrode 3 shaped so that it can be inserted into an affected area and attached to the tip of a flexible member 2 to be introduced into a body cavity.
A power supply connection part 4 is attached to the base end of the flexible member 2. The flexible member 2 includes an insulating tube 5
A tightly wound conductive coil 6 is fitted around the outer periphery of the endoscope, so that it can be inserted into the forceps channels 9, 10, 11 of a general endoscope 7, 8 shown in FIG. 3 or 4. It's summery. In addition, the heating electrode 3
is made of an arrowhead-shaped electrical resistance member with a hole 12 formed therein, and its root portion is fitted and fixed to the tip of the tightly wound coil 6. That is, the heating electrode element 3 is electrically connected to the tightly wound coil 6.

Further, a lead wire 13 is inserted into the inside of the flexible member 2, and the tip of the lead wire 13 is connected to the inner bottom wall of the hole 12 of the heating electrode element 3.

On the other hand, the power supply connection section 4 consists of a pipe-shaped socket 14 attached and fixed to the base end of the flexible member 2, and this socket 14 has a pair of conductive sections 15,
16 are formed. Then, one conductive part 1
5 is electrically connected to the tightly wound coil 6, and the other conductive part 16 is electrically connected to the lead wire 13.

Further, an electrically insulating handle 17 is detachably attached to the socket 14. Furthermore, the handle 17 has a pair of conductive pins 1.
8, 19 are implanted, and each conductive pin 18, 19
Conductive springs 20 and 21 are fixedly attached to the respective conductive springs 20 and 21, so that when the handle 17 is attached to the socket 14, they come into contact with the respective conductive pins 18 and 19 and are electrically connected. Further, lead wires 22 and 23 on the power supply side are connected to each of the conductive pins 18 and 19, respectively.

The electrical circuit of the medical thermal treatment device 1 is as shown in FIG.

That is, the heating electrode 3 is connected to a power source 26 via a switch 24 and a voltage drop device, such as a diode 25, in series. Further, a switch 27 is connected in parallel to the diode 25.
is connected, and when the diode 25 is not required, the switch 27 can be closed to short-circuit it.

Next, a method of using the medical thermal treatment device 1 will be explained.

First, when using an endoscope 7 having two forceps channels 9 and 10 as shown in FIG. The medical thermal treatment tool 1 and the forceps 30 are inserted using 9 and 10. Then, the forceps 30 are operated to grasp the distal end of the medical thermal treatment tool 1 and the heating electrode 3 is inserted into the patient 29 and attached thereto. In this state, connect the power supply 26 and
The heating electrode 3 may be allowed to generate heat for 4 hours, but
Inserting the endoscope 7 through the oral cavity causes great pain to the patient. Therefore, in such a case, after the heating electrode 3 is inserted into the patient 29 and attached thereto, the handle 17 is removed (if it has been attached in advance), and the endoscope 7 is pulled out from the body cavity 28. Thereafter, the handle 17 is attached to the socket 14, and the power supply 26 is connected to supply a current of, for example, 10V. The patient 29 is then heated for 1 to 4 hours. Thus, the affected area 29 can be locally heated at a constant temperature for a long period of time. Note that after the treatment is completed, the medical heat treatment device 1 may be pulled out.

Further, when using an endoscope 8 having one forceps channel 11 as shown in FIG. 4, the endoscope 8 is inserted into the body cavity 28 and the affected area 29 is observed while At any time before or after inserting the speculum 8, insert the soft tube 31 through the nostril and insert it into the affected area 29.
get closer to Next, the medical thermal treatment device 1 is inserted into the body cavity 28 through the flexible tube 31,
As in the case of FIG. 3, the heating electrode 3 is inserted into the affected area 29 using the forceps 30 and fixed therein. Thereafter, the endoscope 8 is pulled out from within the body cavity 28. Also,
The flexible tube 31 may be pulled out. and,
Similarly to the above, the heating electrode 3 is heated to treat the affected area 29.

FIG. 5 shows another embodiment of the present invention, in which a tightly wound coil 32 forming the flexible member 2 of the medical thermal treatment device 1 and an insulating tube 33 are integrally molded.

As explained above, according to the present invention, the heat-generating electrode of the medical thermal treatment instrument is pierced and attached to the affected area in the body cavity, so this attachment operation is simple and can be ensured. Furthermore, after being attached to the affected area, the endoscope can be pulled out of the body cavity. In other words, since there is no need to observe with an endoscope until the treatment is completed, operator fatigue is reduced. It also causes less pain for the patient.

Furthermore, the heating electrode is punctured and attached to the affected area,
Since heating is performed by supplying current from a power source outside the body cavity, only the affected area can be heated stably at a constant temperature for a long period of time, making it possible to perform reliable treatment.

Furthermore, since the treatment is performed using a low current, the treatment can be performed safely.

Incidentally, if the medical heat treatment device is inserted through the patient's nostrils, the patient's pain can be further reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a medical heat treatment device showing an embodiment of the present invention, FIG. 2 is an electric circuit diagram thereof, and FIGS. 3 and 4 are illustrations for explaining the use of the medical heat treatment device, respectively. , FIG. 5 is a sectional view of the tip portion showing another embodiment of the present invention. 1...Medical heat treatment device, 2...Flexible member, 3
...Heating electrode element, 4...Power supply connection part, 5...Insulating tube, 6...Tightly wound coil, 7, 8...Endoscope, 9, 10, 11...Forceps channel, 12...
...hole, 13...lead wire, 14...socket, 1
5, 16... Conductive part, 17... Handle, 18, 19
... Conductive pin, 20, 21 ... Conductive spring, 22,
23... Lead wire, 24... Switch, 25...
Diode, 26...power supply, 27...switch,
28...body cavity, 29...affected area, 30...forceps, 3
1... Soft tube.

Claims (1)

[Claims] 1 A flexible member that can be introduced into a body cavity, a heating electrode that is provided at the tip of this flexible member and can be attached to an affected area in the body cavity by puncturing, and a heating electrode that is electrically connected to the heating electrode that can be inserted outside the body cavity. A medical thermal treatment instrument, comprising: a power supply connection section attached to the proximal end of the flexible member located at the base end of the flexible member.