JP3330401B2 - Heating treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating treatment apparatus for locally heating and treating a prostate by introducing a heating probe transurethrally.

[0002]

2. Description of the Related Art There is known a method of locally heating and treating an affected part of cancer or prostatic hyperplasia which has occurred in the prostate (Japanese Patent Application Laid-Open No. 2-180279). The conventional prostate warming treatment system heats the prostate site by inserting a heating probe into the prostate site through the urethra, and inserts a probe equipped with ultrasonic observation means into the rectum, so that it can be inserted through the rectum wall. Ultrasound images of the prostate site were observed to confirm the position of the heating probe inserted into the urethra, and to diagnose the prostate site during or before and after heating. Further, the probe provided with the ultrasonic observation means has a temperature sensor on its surface and / or inside, and measures the temperature of the rectal mucosal surface with this temperature sensor.

[0003]

In the conventional apparatus, an observation probe provided with ultrasonic observation means is inserted into the rectum, and the rectum is pushed and expanded by the balloon of the observation probe. Pressure from the side,
He was unable to maintain his natural prostate shape. For this reason, the heating probe inserted into the urethra and the rectal mucosal surface approach each other, and the rectal mucosal surface is easily heated, and there is a possibility that the mucosal surface may be burned, or in order to avoid a burn on the rectal mucosal surface. If the heating is restricted, the prostate cannot be sufficiently heated, and the expected therapeutic effect may not be obtained.

Further, in order to accurately measure the temperature of the rectal mucosal surface with a temperature sensor provided on or inside the ultrasonic observation probe, the ultrasonic observation probe must be strongly adhered to the rectal mucosa. To some extent, they had to squeeze the prostate. Furthermore, since the rectum is expanded with the ultrasonic observation probe, there is a possibility that the patient may feel uncomfortable or induce bowel movements.

[0005] In general, the temperature at which the prostate is heated is about 43 ° C, but it is also possible to raise the temperature to about 60 ° C to perform the treatment. In this case, the ultrasonic observation means
Rectum pressure with an observation probe and temperature sensor
A probe that is hard enough to maintain its shape
Inserting the throat into the rectum and pressing it against the mucosal surface of the rectum tends to cause the above-mentioned adverse effects of heat to the rectum. In other words, the rectal mucosal surface is easily heated rapidly, and the mucosal surface is likely to be burned. In addition, if heating is limited to avoid burns on the mucosal surface of the rectum, the prostate cannot be sufficiently heated due to the fact that the temperature does not rise to a desired temperature, and the expected therapeutic effect may not be obtained. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to protect the rectal mucosa from burns as much as possible without excessively compressing the prostate, and to accurately control the temperature of the rectal mucosal surface. Another object of the present invention is to provide a heating treatment device that can be measured.

[0007]

SUMMARY OF THE INVENTION The present invention provides probe means for locally heating a prostate site by inserting it into the urethra, and a rectal mucosal surface adjacent to the prostate site by inserting it into the rectum. In a warming treatment apparatus comprising a temperature measuring means for measuring temperature and locally heating and treating the site of the prostate, the temperature measuring means has a tube having a single passage,
A bag-shaped body which is attached to the opening at the distal end of the tube and has a flexible elliptical sphere, a mouth portion which can inject a fluid into a passage opening of the tube at an opening at a base end of the tube, and the bag-shaped body And a temperature sensor disposed on the surface of the thermotherapy device.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention.
FIG. 1 shows a state of the heating treatment apparatus in the use state. The heating treatment device includes a heating probe 1 that can be inserted into the urethra, an ultrasonic probe 2 that is attached to an external surface of the living body to obtain ultrasonic images of the prostate and living organs around the prostate ,
And a temperature sensor probe 3 that can be inserted into the cavity . The heating probe 1 has a catheter 4.
Is provided with a balloon 5 which can be expanded and contracted at the front end of the balloon. A microwave radiating antenna 6 is provided at a portion of the catheter 4 closer to the insertion side than the balloon 5, and one or more temperature sensors are provided on the outer peripheral surface of the catheter 4 located near the antenna 6. 7 is attached.

[0009] One end of a microwave transmission line 8 inserted into the catheter 4 is connected to the antenna 6. The other end of the microwave transmission line 8 is connected to a microwave oscillator 10 provided inside the body of the heating control device 9 outside the body. A signal line 11 drawn from the temperature sensor 7 is also inserted through the inside of the catheter 4 and is connected to a temperature measuring device 12 in the main body of the heating control device 9. A base 13 for connecting a fluid pump or the like (not shown) is provided at a hand of the catheter 4, and a stopcock 14 is provided at this portion. The ultrasonic probe 2 is connected to an ultrasonic observation device 15.

On the other hand, the temperature sensor probe 3 has a tube 20, as shown in FIG. Attached. The bag-like body 21 is connected to the wall-like portion of the tube 20 with the tip end of the tube 20 attached thereto without entering the inside of the bag-like body 21 at one end of the major axis of the ellipsoidal sphere. It communicates with the inside of the bag-like body 21. The tube 20 does not enter the inside of the bag-like body 21. That is, the bag-like body 21 has a structure without a shaft core in which no tube or core material is disposed. Further, a base 22 for connecting a fluid pump or the like (not shown) is provided at the proximal end of the tube 20, and a stopcock 23 is provided at this portion. It constitutes means for supplying and discharging water.

One or a plurality of temperature sensors 24 are attached to the surface of the bag-like body 21. This temperature sensor 2
The signal line 25 drawn out from 4 is detachably connected to the temperature measuring device 12 of the heating control device 9 via the connector 26. The heating control device 9 includes a temperature measuring device 12
Is provided with a control unit 27 that controls the oscillation operation of the microwave oscillator 10 using the measurement data.

Next, the operation of the heating treatment apparatus will be described. First, with the balloon 5 deflated, the catheter 4 of the heating probe 1 is inserted into the urethra 31 from the external urethra orifice, and after the tip of the catheter 4 reaches the bladder 32,
The stopcock 14 is opened, and a fluid such as air or pure water is injected into the balloon 5 to inflate the balloon 5. This positions the catheter 4 in the urethra 31, as shown in FIG. At this time, the urethra 3
The position of the catheter 4 in 1 is confirmed. In addition, as shown in FIG.
The antenna 6 is adjusted so that the antenna 6 is located at the site of the prostate 33 when mounted on the prostate.

The temperature sensor probe 3 is inserted into the rectum 34 with the bag-like body 21 contracted as shown in FIG. 2B, and then pure water is injected from the tube 20 to remove the flexible bag-like body 21. It is inflated and mounted in the rectum. At this time, the position of the temperature sensor 24 is adjusted so as to be in close contact with the rectal mucosal surface on the prostate 33 side. In other words, since the flexible bag-shaped body 21 without the shaft center has no shaft center, it can swell freely and can secure a wide area relatively freely expanding with respect to its diameter. Along with the shape of the mucosal surface located on the prostate 33 side of the rectal mucosal surface, without softening the shape of the prostate 33 and softly contacting the mucosal surface. In addition, since the ultrasonic probe 2 is mounted on the external surface of the abdominal body and is not mounted in the rectum 34, the rectal mucosa is pushed toward the prostate 33 by this, and the mucous membrane is brought closer to the probe 1 for heating. There is no. Therefore, it is possible to prevent a burn on the rectal mucosa.
In addition, discomfort to the patient caused by inserting the ultrasonic probe into the rectum can be eliminated.

After the catheter 4 of the heating probe 1 is attached to the urethra 31 and the temperature sensor probe 3 is attached to the rectum 34, the microwave is emitted by the microwave oscillator 10 of the heating controller 9. Oscillates and radiates microwaves from the antenna 6 to the site of the prostate 33 to heat it.
At this time, the temperature of the urethral mucosa and the rectum mucosa is measured by the temperature sensor 7 on the heating probe 1 side and the temperature sensor 24 on the temperature sensor probe 3 side, and this temperature information is stored in the microcontroller in the main body of the heating control device 9. The output is fed back to the wave output control unit 27, the output of the microwave oscillator 10 is controlled, and the prostate 33 is kept at an appropriate constant temperature (about 43 ° C. or about 60 ° C.).
Heat until warm.

However, according to this configuration, since the temperature sensor probe 3 does not strongly expand the rectum 34 and does not strongly press the rectum mucous membrane toward the heating probe 1, there is a concern that the rectal mucosa may be burned. There is no. In addition, the temperature of the rectal mucosal surface is accurately measured, and the prostate 33 can be safely heated. Further, since the ultrasonic observation of the prostate site is performed from the outside, there is no discomfort to the patient caused by inserting the ultrasonic probe into the rectum.

[0016]

[0017]

As described above, according to the present invention, since the temperature sensor probe does not strongly press the inner wall of the rectum against the heating probe, the temperature sensor comes into close contact with the rectal mucosal surface facing the prostate. There is no risk of injuries to the rectal mucosal surface, and the temperature of the mucosal surface is accurately measured, and the heated state of the prostate is accurately measured without causing discomfort to the patient to safely heat the patient. Treatment can be given.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a configuration in a use state of a heating treatment apparatus according to an embodiment of the present invention.

FIG. 2 shows a temperature sensor probe of the heating treatment apparatus according to one embodiment of the present invention, wherein (a) is a perspective view of the bag-like body inflated, and (b) is the bag-like body contracted. The perspective view of a state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Heating probe, 2 ... Ultrasonic probe, 3 ... Temperature sensor probe, 9 ... Heating control device, 20 ... Tube, 2
DESCRIPTION OF SYMBOLS 1 ... Bag-shaped body, 22 ... Base, 23 ... Stopcock, 24 ... Temperature sensor.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61N 5/02 A61F 7/12 A61B 5/00

Claims (1)

(57) [Claims] 1. A probe means inserted into the urethra to locally heat the site of the prostate, and a temperature measurement means inserted into the rectum to measure the temperature of a site on the rectal mucosal surface adjacent to the site of the prostate. In the warming treatment device for locally heating and treating the site of the prostate, the temperature measuring means is a tube having a single passage, and is attached to a tip opening of the tube, and is flexible. A bag-like body having an elliptical sphere, a base capable of injecting a fluid into a passage opening of the tube at an opening at a base end of the tube, and a temperature sensor disposed on a surface of the bag-like body. A thermotherapy device characterized by the following.