JPH0611008Y2 - Sensor mounting jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention is, for example, for cancer treatment, particularly for inserting an applicator (intracavity insertion cylinder) into the cavity of a living body and adding cancer tissue such as rectum. The present invention relates to a sensor attachment jig for attaching a temperature sensor to an applicator (electrode device) of a high-frequency hyperthermia treatment device for heat treatment.

(B) Conventional technology A high-frequency hyperthermia treatment apparatus, in particular, an applicator (consisting of an electrode section for applying high-frequency waves and a cooling section for cooling and protecting the skin surface) is inserted into the cavity of a living body to remove diseased parts such as rectal cancer. Conventionally, as a treatment device for treatment, a straight tube fixing type having an electrode inside an insertion cylinder such as a test tube structure is used. In this straight pipe type, by internally disposing the electrode section in the intracavity insertion cylinder, and by disposing the cooling liquid in the cylinder,
It is configured to cool and protect the body surface corresponding to the heating target (cancer disease site). During treatment, as shown in FIGS. 5 (A) and 5 (B), a pair of applicators 6, 6
a, that is, the intracavity insertion cylinder (applicator) 6 is inserted into the anus, and the other applicator 6a is arranged facing the external surface of the body at the position corresponding to the diseased part, and a high-frequency electric field is applied between both electrodes. By doing so, the cancer cells are heat-treated.

(C) Problems to be solved by the invention When the intracavity insertion cylinder is inserted into the cavity of the living body and the cancer tissue is heated and treated, the heating temperature of the electrode part and the heating temperature of the cancer tissue are detected to perform treatment. It is necessary to detect whether or not the treatment is being performed under the optimum temperature condition.

Therefore, conventionally, a temperature sensor has been used to detect the heating temperature of cancer tissue or the like during treatment.

FIG. 5 (A) and FIG. 5 (B) are states in which the heating temperature of the cancer tissue is detected when cancer treatment is performed using the conventional straight tube type applicator (cylindrical body for insertion into cavity). FIG.

In FIG. 5 (A), a tubular body (applicator) 6 for insertion into the anus and for positioning the electrode part at the diseased part (applicator) 6
And the temperature sensor 61 are separately provided. The temperature sensor 61 uses a temperature detecting needle called an elastor needle 62 to detect the heating temperature of a diseased part or the like. In this method, one end of the elastor needle 62 is pierced to the diseased part position, and the temperature sensor 61 is arranged at the other end of the elastor needle 62, which is a so-called separate type method. Further, in FIG. 5 (B), inside the tubular body 6 for insertion into the cavity, that is, the electrode portion 6
A temperature sensor 61 is internally provided in the vicinity of 3, so that the temperature around the diseased part can be measured at the same time when the tubular body for intracavity insertion 6 is inserted into the anus, which is a so-called integrated type.

In the former separate body temperature measuring method, it is necessary to pierce the body part with the tip of the elastor needle each time the temperature is measured, which is disadvantageous in that the patient complains of pain. On the other hand, in the latter integrated temperature measurement method, it is not necessary to pierce the elastor needle separately, and the disadvantage of the former can be eliminated, but the temperature sensor is arranged in the cooling section (cooling liquid filling section). Had to measure the heating temperature of the cooling part (cooling water), which was disadvantageous in that the accurate temperature of the cancer disease part could not be measured.

It is an object of the present invention to provide a sensor mounting jig for easily mounting a temperature sensor on a tubular body for intracavity insertion and for easily and accurately measuring the heating temperature of cancer tissue.

(D) Means and Actions for Solving Problems In order to achieve this object, the sensor mounting jig of the present invention has the following structure.

The sensor mounting jig is provided with a pressurizing air balloon at one end and a sack mounting portion for removably mounting a bag-shaped rubber sack for covering the high-frequency treatment electrode on the other end, and the outer diameter of the high-frequency treatment electrode The inner cylinder has a large inner diameter, and the outer cylinder is slidably fitted to the inner cylinder and has a sensor mounting slit hole for disposing a sensor on the bag-shaped rubber sack.

In the sensor mounting jig having such a structure, the bag-shaped rubber sack is mounted on the sack mounting portion of the inner cylinder. After that, the outer cylinder is slid with respect to the inner cylinder toward the sack mounting portion.
In this state, the bag-shaped rubber sack is located inside the outer cylinder. Here, the rubber sack is pressurized and swelled in the outer cylinder by the air blower. Next, the distal end portion (electrode portion side) of the intracavity insertion cylinder is fitted into the outer cylinder. That is, the distal end portion of the intracavity insertion tubular body is pressed against the bulging rubber sack in the outer cylinder. At this time, by opening the slow exhaust valve of the air supply bulb, the intracavity insertion cylinder gradually enters the outer cylinder as the rubber sack contracts. The outer cylinder is gradually retracted in the inner cylinder direction as the cylinder body for insertion into the cavity enters. In this state,
At an appropriate position, for example, in the vicinity of the tip electrode part of the tubular body for intracavity insertion,
Place a sensor (temperature sensor). The temperature sensor is arranged by inserting the temperature sensor into the slit hole of the outer cylinder.
That is, the temperature sensor is arranged on the outer surface of the tubular body for insertion into the cavity through the slit hole. Then, while maintaining this state, while further inserting the tubular body for intracavity insertion, the outer tube is also retracted in the inner tube direction. When the outer cylinder retracts, that is, the insertion of the intracavity insertion cylinder advances, the inner cylinder gradually moves toward the intracavity insertion cylinder side, and the inner cylinder having a larger inner diameter than the intracavity insertion cylinder Fit the inner insertion cylinder. As a result, the opening tip portion (sack attachment portion) of the inner cylinder also moves to the cavity inserting cylinder side (cylinder shaft proximal end side, the side opposite to the electrode portion), and the rubber sack reverses the attachment portion to the stop point, It includes a temperature sensor arranged on the surface of the intracavity insertion cylinder and is tightly covered with the intracavity insertion cylinder. Here, the temperature sensor is located between the rubber sack and the outer surface of the tubular body for insertion into the cavity. Then, the temperature sensor is tightly fixed and held between the rubber sack and the intracavity insertion cylinder by removing the open end of the rubber sack from the attachment portion and moving it to the cavity insertion cylinder side. Therefore, the temperature sensor is attached to the position corresponding to the electrode portion of the tubular body for cavity insertion by a simple operation,
Appropriate temperature measurement of the cancerous area can be performed.

(E) Embodiment FIG. 1 is a perspective view showing a specific embodiment of the sensor mounting jig according to the present invention.

The sensor mounting jig is composed of an inner cylinder 1 provided with a pressure-feeding air balloon and an outer cylinder 2 slidably fitted to the inner cylinder 1.

The inner cylinder 1 has a tubular shape with openings at both ends, and a pressurizing air supply bulb 11 is attached to one end thereof, and a slow exhaust valve portion 12 is provided at the pressurizing air supply bulb 11 mounting portion (see FIG. 2). Further, a sack attachment portion (a sack attachment step portion) for detachably attaching a bag-shaped rubber sack 3 described later to the other end of the inner cylinder 1.
13 is formed. The inner cylinder 1 is set to have an inner diameter slightly larger than the shaft diameter of an intracavity insertion cylinder (applicator) 4 described later. The bag-shaped rubber sack 3 is formed in a thin rubber balloon shape, and an opening end portion is provided with a thick mounting rib portion 31. Further, a lubricating liquid 32 is applied to the inner peripheral surface of the rubber sack 3 (see FIG. 4 (G)), and the inner cylinder 1
In the state in which it is reversed by the applicator and is covered by the intracavity insertion cylinder (having an electrode part and a cooling part inside) 4, the above-mentioned lubricating liquid application surface is located on the surface side and inserted into the cavity. It is set to be easy. Further, the rubber sack 3 is set to have a size so as to be tightly fitted to the intracavity insertion cylinder 4, and a temperature sensor 5 (to be described later) arranged at an appropriate position on the outer surface of the intracavity insertion cylinder 4. Slit hole 21
The temperature sensor 5) arranged via the
It is set so that it can be fixedly held tightly between and.

The outer cylinder 2 is formed in a cylindrical body having both ends opened, which has an inner diameter slightly larger than the outer diameter of the inner cylinder 1, and is slidably fitted to the inner cylinder 1. The mounting portion 13 is set to project from the tip of the second opening. When the outer cylinder 2 is pulled out from the inner cylinder 1, that is, when the outer cylinder 1 is slid to the mounting portion 13 side, the tip of the rubber sack 3 mounted and fixed to the mounting portion 13 is slightly smaller than the outer cylinder 2. It is set to appear (see FIG. 3). A narrow groove slit 21 having a constant length in the axial direction is opened in the outer cylinder 2 so that the temperature sensor 5 can be inserted into the outer cylinder 2 from above. A plurality of the slit holes 21 are formed at regular intervals so that a large number of temperature sensors 5 can be arranged at desired positions.

Using the sensor mounting jig having such a configuration, the temperature sensor 5 is mounted on the tubular body 4 for intracavity insertion in the following working steps.

In the normal state, the sensor mounting jig has the inner cylinder 1 and the outer cylinder 2 fitted together as shown in FIG. 4 (A), and the sack mounting portion 13 of the inner cylinder 1 projects from the tip of the outer cylinder 2. ing. First, the inner cylinder 1
The open end portion (thickness rib) 31 of the bag-shaped rubber sack 3 is fitted and attached to the sack attachment portion 13 at the tip of the [Fig. 4
(B)]. After that, the outer cylinder 2 is slid in the direction of the bag-shaped rubber sack 3, and the rubber sack 3 is installed inside the outer cylinder 2 [Fig. 4 (C)]. Then, the air balloon 11 for pressurization is operated to pressurize and bulge the rubber sack 3 in the outer cylinder 2. In this state, the shaft distal end portion (electrode portion) of the intracavity insertion cylinder 4 is inserted into the outer cylinder 2. That is, the tip of the shaft is pressed into the rubber sack 3 and inserted [Fig. 4 (D)]. At this time, by opening the slow exhaust valve 12 of the air supply bulb 13, the rubber sack 3 gradually contracts, and the intracavity insertion cylinder 4 is inserted deeper into the outer cylinder (rubber sack 3) 2. In this state, the rubber sack 3 is gradually swelled and shortens, but is guided by the outer cylinder 2 and smoothly retracts without being displaced. Here, the temperature sensor 5 is inserted and arranged in the slit hole 21 of the outer cylinder 2, and the lead wire 51 of the temperature sensor 5 is positioned in the slit hole 21 [FIG. 4 (E)]. The temperature sensor (the tip portion of the lead wire 51) 5 is a tubular body 4 for insertion into the cavity.
Is properly positioned on the outer surface of, for example, the outer surface corresponding to the electrode portion.
While maintaining this state, the intracavity insertion cylinder 4 is further inserted deep into the outer cylinder 2. At this time, the tubular body 4 for insertion into the cavity is caused to enter, and at the same time, the outer barrel 2 is temporarily moved (retracted) toward the inner barrel 1. As a result, the inner cylinder 1 is moved to the cavity inserting cylinder side, and the cavity inserting cylinder 4 is fitted into the inner cylinder 1 [Fig. 4 (F)]. Here, the outer cylinder 2 returns to the original position in which it is fitted in the inner cylinder 1, and the rubber sack 3
The air inside is completely discharged, and the open end (sack attachment portion 13) of the inner cylinder 1 has moved to the shaft base end of the intraluminal insertion tubular body 4, and the rubber sack 3 is inverted. That is, the thick portion (rib portion) 31 is located at the shaft base end portion of the tubular body 4 for intracavity insertion in the inverted state with the lubricating liquid application surface 32 as the surface side. That is, with the temperature sensor 5 included, the rubber sack 3 covers the tubular body 4 for intracavity insertion. Then, the temperature sensor 5 is tightly fixed and held between the rubber sack 3 and the intracavity insertion tubular body 4 being fitted. Here, when the thick rib portion 31 of the rubber sack 3 is detached from the sack attachment portion 13, the thick rib portion 31 is fixed to the intracavity insertion tubular body 4. Then, the jig (in which the inner cylinder 1 and the outer cylinder 2 are returned to the original fitting state) is taken out from the intracavity insertion cylinder 4. That is, the tubular body 4 for insertion into the cavity
Pull out from the jig [see Fig. 4 (G)].

(F) Effect of the device In this device, as described above, an air balloon for pressurization,
Since it was decided to slidably fit the outer cylinder with the slit hole to the inner cylinder with the sack mounting part at the other end, attach the bag-shaped rubber sack to the sack mounting part and put the rubber sack inside the outer cylinder. After bulging under pressure, insert the tip of the tubular body for intracavity insertion into this outer tube, and after inserting the temperature sensor through the slit hole during insertion, place the inner tube in the direction of the tubular body for intracavity insertion. By moving the temperature sensor to, the rubber sack can be automatically put on the tubular body for insertion into the cavity while the temperature sensor is in the proper position. Therefore, it is possible to cover the tubular body for intracavity insertion with the rubber sack by a simple operation, and the temperature sensor can be fixed and held at an appropriate position corresponding to the electrode portion. Moreover, the temperature sensor is fixedly arranged on the outer surface of the tubular body for insertion into the cavity, which enables proper temperature measurement of the diseased part, etc.
It has the excellent effect of achieving the purpose of the invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment sensor mounting jig, FIG. 2 is an enlarged cross-sectional view of an essential part showing an air supply bulb, and FIG. 3 is a state in which an outer cylinder of the embodiment sensor mounting jig is slid. 4 (A) to 4 (G) are explanatory views showing the operating state of the sensor mounting jig of the embodiment, and FIG. 4 (A) shows the rubber sack and the jig. Explanatory drawing, FIG. 4 (B) is an explanatory view showing a state in which the rubber sack is attached to the inner cylinder, and FIG. 4 (C) is an explanatory view showing a state in which the outer tub is slid to accommodate the rubber sack in the outer cylinder. FIG. 4 (D) is an explanatory view showing a state where the intracavity insertion cylinder is inserted into the outer cylinder, and FIG. 4 (E) is an explanation showing a state where the temperature sensor is inserted into the slit hole of the outer cylinder. Figure, Figure 4
(F) is an explanatory view showing a state where the inner cylinder is fitted into the intracavity insertion cylinder, and FIG. 4 (G) is an explanatory view showing a state where the rubber sack is put over the intracavity insertion cylinder. FIG. 5 (A) is an explanatory view showing a conventional temperature measurement situation, and FIG. 5 (B) is an explanatory view showing another conventional temperature measurement situation. 1: Inner cylinder, 2: Outer cylinder, 3: Rubber sack, 4: Intracavity insertion cylinder, 5: Temperature sensor, 11: Air supply bulb, 13: Suck attachment part, 21: Slit hole.

Claims (1)

[Scope of utility model registration request] 1. A pressurizing air balloon is provided at one end, and a sack attachment portion for detachably attaching a bag-like rubber sack for covering the high-frequency treatment electrode is provided at the other end, and the sack attachment portion is larger than the outer diameter of the high-frequency treatment electrode. A sensor mounting jig comprising an inner cylinder having a large inner diameter and an outer cylinder slidably fitted to the inner cylinder and provided with a sensor mounting slit hole for disposing a sensor on the bag-shaped rubber sack.