JPH0260662A - Applicator for intra-cavity treatment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field This invention is used for heat treatment of cancer tissues, etc. present in narrow living body parts in cavities such as the oral cavity, esophagus, and rectum. The present invention relates to an applicator for intracavitary treatment.

(B) Prior Art FIG. 3(A) is an explanatory diagram showing a conventional portable high-frequency thermotherapy applicator.

In this applicator, an electrode is provided inside a flat bottomed cylinder 41, and a bag-like liquid storage bag 742 is attached to the bottom opening of the cylinder 41.

A power supply line 43 is connected to the electrode within the cylindrical body 41, and this power supply vA43 is drawn out to the outside. In addition, liquid storage bag 4
2, a liquid pipe 44 for supplying coolant is projected outward, and the liquid storage bag 42 is filled with the coolant.

For example, when cancerous tissue exists in the oral cavity of a living body, that is, in the inner mucous membrane of the facial cheeks, and this cancer cell is to be treated, as shown in Figure 3 (B)
As shown in , a pair of applicators (consisting of electrodes and a liquid storage bag 42) are placed in opposing contact with the living body (facial and cheek) A so as to sandwich them from both sides, and a high-frequency electric field is applied between both electrodes. Heat treatment of cancer tissue.

Furthermore, the conventional applicator for intraluminal insertion shown in FIG. A bifurcated coolant circulation opening 53 is provided. Further, the structure is such that the electrode lead 54 inside the pipe 51 is drawn out to the outside of the vibrator 51.

With this applicator, as shown in FIG. 4(B), the applicator is inserted into the vaginal opening (for example, the esophagus), and the tip electrode portion 52 is positioned corresponding to the cancerous tissue. Then, a living body A corresponding to the cancer tissue, that is, facing the electrode part 52,
A conventional portable applicator 55 is brought into contact with the skin surface, and a high-frequency electric field is applied between both electrodes to treat the affected area.

(c) Problems to be Solved by the Invention The portable applicator shown in FIG. This is not an unsuitable option, but has the disadvantage that the heating area is wide and the heating efficiency is low. In addition, Fig. 4 (A
In the intraluminal insertion type shown in ), the small electrode for insertion is placed in the vaginal opening, corresponding to the cancerous tissue, so it is less heated than the method in which a pair of image electrodes are placed facing each other on the skin surface of the cheek. Disadvantages such as expansion of the area and weakening of heating efficiency are eliminated. However, since this applicator has an electrode attached to the tip of a flexible pipe, it is difficult to properly align and fix the electrode to the cancer tissue in a narrow area. be. That is, for example, in the oral cavity (
When treating cancerous tissue in the buccal surface (spermenal membrane), the patient must grasp the electrode (pipe) inserted into the oral cavity and maintain it in the inserted state.Maintaining this state is important for the patient. Extremely painful. In addition, the small electrode (heating body) comes into contact with the tongue or the like in the oral cavity, causing disadvantages such as burns to the tongue or mucous membrane.

The purpose of the present invention is to solve the above-mentioned problems, and to provide a safe intracavity treatment applicator that can easily fix the state of insertion and deployment into the cavity, and can limit the heating area to a localized area. do.

(d) Means and action for solving the problem In order to achieve this object, the intracavitary treatment applicator of the present invention has the following configuration.

The intraluminal treatment applicator is composed of an inflatable and deflated fixing member for intraluminal insertion, and a treatment electrode disposed at an appropriate position on the outer surface of the fixing member for intraluminal insertion.

In the intraluminal treatment applicator having such a configuration, the fixing member for intraluminal insertion is formed, for example, in a cylindrical rubber bag, and this rubber bag is provided with an air supply bulb with a valve via a tube. ing. A therapeutic electrode is fixedly provided at a suitable location on the outer surface of this cylindrical rubber bag (fixing member for intraluminal insertion). The therapeutic electrode has a structure similar to an extremely small portable applicator, with an electrode body placed inside a liquid storage bag, and this liquid storage bag has a cooling water circulation tube and a power supply connected to the electrode body at one end. The cooling water circulation tube and the power supply lead are set to be drawn out through the above-mentioned intraluminal insertion fixing member.

With this applicator, for example, when treating cancerous tissue in the oral cavity (cancer tissue of facial mucosa), the fixing member for insertion into the cavity is inserted into the oral cavity. In this state, the fixing member for insertion into the cavity (cylindrical rubber bag) is not filled with compressed air, and the rubber bag is contracted. Therefore, it can be easily inserted into the oral cavity.

In this inserted state, the treatment electrode is placed in an upright position corresponding to the cancer tissue. While maintaining this state, compressed air is sent to the rubber bag using an air balloon to inflate the rubber bag. As a result, the fixing member for intracavity insertion is expanded to a full size within the oral cavity. Therefore, the bulging fixing member for insertion into the cavity is pressed against and fixed to the inner surfaces of both cheeks. That is, the intracavitary insertion fixing member is fixed in the oral cavity with the treatment electrode in contact with the cancerous area. Thereby, there is no need for the patient to grasp the treatment electrode and the intraoral insertion member that are in contact with the cancerous tissue. Further, in this state, since the intraluminal insertion and fixing member is cylindrical, the patient can breathe without any problem through the internal through hole (inner hole) of the cylindrical rubber bag. Here, the end of the cooling water circulation tube drawn out from the oral cavity is connected to a liquid tank, and the cooling liquid is filled into the liquid storage bag of the treatment electrode. Further, the power feeding lead end drawn out in the same manner is connected to a high frequency power source. On the other hand, a normal portable applicator is placed in contact with the outer surface of the cheek corresponding to the cancerous area and fixed with a band or the like, and then a high-frequency electric field is applied to the electrodes of both applicators to perform heating treatment.

As a result, the treatment electrode can be easily fixed at a proper position relative to the cancer tissue, and the patient can safely carry out the treatment without any pain of holding the applicator during the treatment. Also,
The fixing member (rubber bag) for insertion into the cavity is filled with air, which is an insulating material, so the back side of the electrode is in a highly insulated state. Even if the surface comes into contact with the surface (side), it will not be heated by high-frequency electric lines of force, and there is no risk of burns or the like.

(E) Embodiment FIG. 1 is a perspective view showing a specific embodiment of the applicator for intracavity treatment according to the present invention.

The intraluminal treatment applicator includes a fixing member 1 for intraluminal insertion,
It consists of a treatment electrode 2 placed at a suitable location on the outer surface of this intraluminal insertion fixing member 1.

The fixing member 1 for intraluminal insertion is a cylindrical rubber bag 11,
An air supply bulb 13 with a valve 14 is provided at a suitable location via an air tube 12 that is continuous with the internal space. Since this intraluminal insertion fixing member 1 is intended for insertion into the oral cavity in this embodiment, a breathing through hole 15 is provided in the center so as not to hinder the patient's breathing.

The therapeutic electrode 2 has the same structure as a conventional portable applicator, and has a small electrode body built into a liquid storage mesh bag 21. This built-in electrode body has two power supply leads.
Connect one end of 2.

In addition, the liquid collection net bag 21 includes a cooling water circulation tube 23,
That is, one end of the coolant delivery pipe 23a and the coolant discharge vibe 23b are connected. The other end of the cooling water circulation tube 23 and the other end of the power supply lead 22 are each pulled out to the outside via the intraluminal insertion fixing member (cylindrical rubber bag 11). The other end of the cooling water circulation tube 23 is connected to a liquid tank (not shown), and the other end of the power supply lead 22 is electrically connected to a high frequency type # (not shown).

When using an applicator for intracavitary insertion having such a configuration to treat, for example, cancerous tissue in the oral cavity (cancer tissue in the facial and buccal mucosa), as shown in FIG. The fixing member 1 is inserted into the oral cavity. In this state, the fixing member for intraluminal insertion (cylindrical rubber bag 11) 1 is not filled with compressed air, and the rubber bag 11 is contracted. Therefore,
Can be easily inserted into the oral cavity. In this inserted state, the treatment electrode 2 is positioned corresponding to the cancer tissue. Hold this state and
The valve 14 is opened and compressed air is sent to the rubber bag 11 by the air balloon 13 to inflate the rubber bag 11. This results in
The fixing member 1 for intracavity insertion swells to a full size in the oral cavity,
It is pressed against the inner surfaces of both cheeks and fixed. That is, the intracavitary insertion fixing member 1 is fixed in the oral cavity with the treatment electrode 2 in contact with the cancerous area. After the fixing member 1 for intraluminal insertion is expanded to this state, the valve 14 is closed. Therefore, the patient does not need to hold the treatment electrode 2 and the fixing member 1 for intraluminal insertion at all. In addition, the patient's breathing is controlled by the intraluminal insertion fixation member 1.
This can be carried out without any problem due to the through hole 15. here,
The end of the cooling water circulation tube 23 drawn out from the oral cavity is connected to a liquid tank (not shown), and the liquid collection net bag 21 of the treatment electrode 2 is filled with cooling liquid. In addition, connect the end of the power supply lead 22 pulled out in the same way to a high frequency type # (not shown).
to apply a high-frequency electric field to the electrode body.

On the other hand, a normal portable applicator 3 is placed in contact with the outer surface of the cheek corresponding to the affected area and fixed with a band or the like, and a high-frequency electric field is applied to the electrodes on both opposing sides to perform heating treatment on the cancer-affected area. .

As a result, the treatment electrode 2 is easily fixed at an appropriate position relative to the cancerous tissue in the oral cavity, and the patient does not have to worry about holding the applicator during treatment (the treatment can be performed safely. The fixing member for inner insertion (rubber bag 11)■
Since it is filled with air, which is an insulating material, the back side of the electrode is in a highly insulated state, and even if the tongue or mucous membrane in the oral cavity comes into contact with the back side of the treatment electrode (the side opposite to the liquid collection bag 21), There is no heating caused by high-frequency electric lines of force, so there is no risk of burns, etc.

In addition, in the embodiment, an example of treating cancerous tissue in the oral cavity with an applicator for insertion into a cavity is shown, but the present invention is not limited to this, and can be applied to small spaces such as the esophagus, rectum, or vagina (uterus). Of course, it can be applied to intracavitary cancer treatment, and in this case, it is natural that the breathing through hole 15 shown in the embodiment is unnecessary.

Further, in the embodiment, an example is shown in which heating treatment is performed by applying a high-frequency electric field, but the present invention is not limited to this, and can also be applied to, for example, a microwave heating method or an ultrasonic heating method.

(F) Effects of the Invention In this invention, as described above, since the treatment electrode is disposed at a proper location on the outer surface of the inflatable fixing member for intraluminal insertion, it is fixed for intraluminal insertion without being expanded. After the member is inserted, for example, into the oral cavity and the treatment electrode is positioned corresponding to the cancerous area, this state is maintained and the fixing member for insertion into the cavity is expanded. As a result, the bulged intraluminal insertion fixing member swells to its fullest within the oral cavity and is fixed by coming into contact with the inner surfaces of both cheeks. Therefore, the patient is free from the pain of holding and fixing the electrodes in the oral cavity, and can receive treatment in a comfortable state.

In addition, since the fixing member for intracavitary insertion is inflated by air, it has high insulation properties and eliminates disadvantages such as burns caused by contact of the mucous membrane of the tongue with the electrode heating element when inserted into the oral cavity. . Furthermore, the present invention has excellent effects such as being able to fix the therapeutic electrode at an appropriate position corresponding to the intracavity cancerous area and accurately heating the heating area locally, achieving the purpose of the invention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the intracavitary insertion applicator according to the embodiment, FIG. 2 is an explanatory diagram showing a state in which cancer tissue in the oral cavity is treated by the intracavitary insertion applicator according to the embodiment, and FIG. 3 (A
) is a perspective view showing a conventional portable applicator, FIG. 3(B) is an explanatory diagram showing a state in which cancer tissue in the oral cavity is treated with the conventional portable applicator, and FIG. 4(A) is a perspective view showing a conventional portable applicator. FIG. 4(B) is an explanatory diagram showing a conventional intracavitary insertion type bricator, and FIG. 4(B) is an explanatory diagram showing a state in which intracavitary cancer tissue is treated with a conventional intracavitary insertion type applicator. Technique: Fixing member for intraluminal insertion, 2: Treatment electrode. Patent applicant Tateishi Electric Co., Ltd. Agent
Patent Attorney Shigeru Nakamura Figure 2 Figure 1 Figure (A') Figure (B)

Claims (1)

[Claims] (1) An applicator for intracavity treatment comprising an inflatable and deflated fixing member for intracavity insertion, and a treatment electrode disposed at an appropriate location on the outer surface of the fixation member for intracavity insertion.