JPH09164147A - Ultrasonic medical treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the load of an operator and a patient by reducing the repeating number of times of the positioning operation of an ultrasonic vibrator for medical treatment and rapidly and certainly positioning the ultrasonic vibrator for medical treatment and shortening a medial treatment time. SOLUTION: When an ultrasonic vibrator 10 for medical treatment 10 and a diagnostic ultrasonic vibrator 11 are allowed to cooperate and the operation of them is stopped, a rotation control circuit 30 is controlled by a system control circuit 33 to decrease the operation speed of an ultrasonic vibrator part before the operation of them is stopped. By this stop system, especially, the stop position of the ultrasonic vibrator for medical treatment can be accurately controlled without overrunning the stop position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intracorporeal ultrasonic treatment apparatus for performing ultrasonic treatment by inserting a tip portion provided with an ultrasonic transducer into a body cavity.

[0002]

2. Description of the Related Art In this type of intracorporeal ultrasonic treatment apparatus, an ultrasonic vibrating element unit in which a diagnostic ultrasonic vibrating element and a therapeutic ultrasonic vibrating element are integrally back-to-back at the tip of a probe inserted into the body cavity There is known an intracorporeal ultrasonic treatment device in which a ultrasonic wave vibrating element section is provided and is rotated by a motor in a radial direction (Japanese Patent Laid-Open No. 62-127050). In order to obtain a high-quality diagnostic ultrasonic image, the ultrasonic vibration element part is rotated at high speed. Then, when performing the treatment, the positioning control for directing the therapeutic ultrasonic transducer to the treatment site is performed by turning on / off the power supply of the motor that radially rotates the ultrasonic transducer, and the ultrasonic transducer for treatment is applied to the affected area. The motor is stopped when it reaches the corresponding position.

[0003]

In the conventional example described above, when positioning the therapeutic ultrasonic transducer in an arbitrary direction, when the therapeutic ultrasonic transducer reaches the position of the affected area, the motor is rotated. I'm trying to stop. However, the power supply to the motor is stopped and the rotation of the motor does not stop suddenly. This is because the inertia of the rotating motor or ultrasonic vibrator causes the motor or ultrasonic vibrator to rotate slightly even after the power supply to the motor is stopped.

The rotation amount of this overrun increases as the rotation speed of the motor increases, and the variation also increases. In order to obtain a diagnostic ultrasonic image, the ultrasonic transducer has been rotated at high speed until then, and this has a large effect. Further, if the motors are different, the overrun and its variation are different for each motor.

For these reasons, the therapeutic ultrasonic transducer does not always correctly face in the aimed direction by one positioning operation. For this reason, it is necessary to repeat the process until the therapeutic ultrasonic transducer is correctly oriented in the target direction and perform accurate positioning, which complicates the treatment work and prolongs the treatment time, resulting in a large burden on the operator / patient. There was a drawback that

The present invention has been made in view of the above problems, and an object thereof is to reduce the number of times of repeating the positioning operation of the therapeutic ultrasonic transducer to quickly and reliably position the therapeutic ultrasonic transducer. Another object of the present invention is to provide an intracorporeal ultrasonic treatment apparatus which can be performed in a short period of time, which shortens the treatment time and reduces the burden on the operator / patient.

[0007]

SUMMARY OF THE INVENTION The present invention has a moving means for moving a diagnostic ultrasonic transducer and a therapeutic ultrasonic transducer in conjunction with each other, and a motion stopping means for stopping the movement. In the ultrasonic treatment apparatus, which positions the therapeutic ultrasonic transducer based on the diagnostic ultrasonic image obtained by moving the ultrasonic transducer and irradiates the lesion with therapeutic ultrasonic waves, During the positioning of the ultrasonic transducer for use, the moving speed of the diagnostic ultrasonic vibrator and the therapeutic ultrasonic vibrator by the moving means is reduced, and then the motion is stopped by the motion stopping means. When the therapeutic ultrasonic transducer is positioned, the motion speed of the therapeutic ultrasonic transducer is reduced and then the motion of the therapeutic ultrasonic transducer is stopped, so that the stop position of the therapeutic ultrasonic transducer can be accurately controlled.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. (Structure) In this embodiment, an ultrasonic treatment apparatus for benign prostatic hyperplasia that is used by inserting an insertion portion from the anus to the rectum will be described.

This ultrasonic treatment apparatus displays a three-dimensional diagnostic ultrasonic image on a monitor, designates a treatment region on the monitor image, and radiates the treatment ultrasonic wave from the treatment ultrasonic transducer to the affected area. Then, the affected area such as a tumor is cauterized with ultrasonic waves. FIG. 1 is a diagram showing the external appearance of the system of the ultrasonic treatment apparatus. The ultrasonic therapy apparatus is roughly classified into a probe 1, a probe holder 2, a monitor 3, a keyboard 4 as an input operation means, a therapeutic ultrasonic signal oscillator 5, an ultrasonic signal amplifier 6, and an ultrasonic observation apparatus 7. And a probe cooling system 8 and a foot switch 9.

As described later, the probe 1 is inserted with an ultrasonic transducer portion 12 in which a therapeutic ultrasonic transducer 10 and a diagnostic ultrasonic transducer 11 are back-to-back bonded together to form a unit. The unit 13, a driving unit 14 for rotating the ultrasonic transducer unit 12 in a radial direction (rotating about the central axis of the inserting unit 13) and linearly moving back and forth (moving on the central axis of the inserting unit 13), and connected to the driving unit 14. Transmission cable 15
Consists of

The transmission cable 15 is divided into two: a therapeutic cable 15a connected to the ultrasonic signal amplifier 6 and a diagnostic cable 15b connected to the ultrasonic observation device 7.

The probe 1 is supported and fixed by a probe holder 2. The probe holder 2 has a function of changing the direction of the probe 1 and supporting / fixing the probe 1 at that position.

The therapeutic ultrasonic signal oscillator 5 oscillates a therapeutic ultrasonic signal. A foot switch 9 is connected to the ultrasonic signal oscillator 5. When the operator steps on the foot switch 9, the signal is oscillated, and when released, the oscillation of the signal is stopped.

The ultrasonic signal amplifier 6 amplifies the therapeutic ultrasonic signal oscillated from the ultrasonic signal oscillator 5 and transmits the amplified signal to the therapeutic ultrasonic transducer 10. The ultrasonic observation apparatus 7 transmits a drive pulse to the diagnostic ultrasonic transducer 11, and constructs a diagnostic ultrasonic image from the echo signal obtained by the diagnostic ultrasonic transducer 11, and as shown in FIG. The ultrasonic image is displayed on the monitor 3.

The probe cooling system 8 includes a probe 1
The cooling water is supplied to the insertion part 13 of the
3 is cooled, and the temperature of the organ contact surface of the insertion part 13 is
Keep below the protein denaturation temperature of the body. A pump and a cooling water tank (not shown) are installed in the probe cooling system 8. Then, the cooling water contained in the cooling water tank is sent by the pump to the inside of the insertion portion 13 via the water feeding tube 8a, and after flowing back inside the insertion portion 13, the cooling water tank is passed through the suction tube 8b. Returned to.

The insertion portion 13 of the probe 1 is constructed as shown in FIG. The insertion portion 13 includes a tip portion 16 and a rigid portion 17 having a diameter smaller than that of the tip portion 16. The exterior of the tip portion 16 is composed of a hard pipe portion 18 and a hard polyethylene cap 19 fitted to the hard pipe portion 18, and the ultrasonic transducer portion 12 is housed in the hard pipe portion 18.

As shown in FIG. 2, the ultrasonic transducer section 1
2 has a rotor body member 12a, and the rotor treatment ultrasonic transducer 10 and the diagnostic ultrasonic transducer 11 are arranged in a back-to-back direction with respect to the rotor body member 12a to be integrated. It is configured to be attached. The therapeutic ultrasonic transducer 10 includes a circular concave-shaped therapeutic piezoelectric element 20 and a housing 21. The therapeutic signal line 22a is connected to the therapeutic piezoelectric element 20. The signal line 22a is connected to the ultrasonic signal amplifier 6 via the drive unit 14 and the treatment cable 15a. A diagnostic signal line 22b is connected to the diagnostic ultrasonic transducer 11. This signal line 2
2b is connected to the ultrasonic observation device 7 via a drive unit 14 and a diagnostic cable 15b.

In the ultrasonic transducer portion 12, the rotor body member 12a is coaxially attached to the tip of the rigid shaft 23. The ultrasonic transducer unit 12 is driven by the drive unit 14 via the rigid shaft 23 to perform radial rotation (rotation about the central axis of the insertion unit 13) and linear advance / retreat (movement on the central axis of the insertion unit 13). The driving is performed as described later.

As shown in FIG. 1, an opening 24 is formed in the side wall of the rigid pipe portion 18 covered with the hard polyethylene cap 19. The diagnostic ultrasonic wave / therapeutic ultrasonic wave oscillated from the ultrasonic vibrator section 12 is irradiated from the opening 24 toward the organ. The radial angle of view of the diagnostic ultrasonic image is determined by the length of the opening 24 in the circumferential direction. The axial length of the opening 24 is determined according to the linear advance / retreat distance of the ultrasonic transducer section 12. The opening 24 in this embodiment is opened vertically upward when the probe 1 is placed horizontally.

The rigid pipe portion 18 of the tip portion 16 has the following two roles. First, it prevents the rigid polyethylene cap 19 from collapsing due to the tightening force of the anal sphincter when inserting the tip 16 into the rectum through the anus. Secondly, the guide ring 25 attached to the ultrasonic transducer section 12 contacts the inner surface of the rigid pipe section 18, and the radial rotational movement of the ultrasonic transducer section 12 about the central axis of the insertion section 13 and the insertion section A linear advancing / retreating movement that moves on the central axis of 13 is guided. The guide ring 25 is provided with a plurality of holes 25a for passing cooling water.

FIG. 3 is a block circuit diagram of the ultrasonic therapeutic apparatus of this embodiment. Circuits installed in the ultrasonic observation device 7 are surrounded by alternate long and short dash lines. The therapeutic signal line 22a connected to the therapeutic ultrasonic transducer 10 and the diagnostic signal line 22b connected to the diagnostic ultrasonic transducer 11 are provided in the drive unit 14 via the inside of the rigid shaft 23. Connected to the slip ring 26. The rigid shaft 23 is connected to a DC motor 28 in the drive unit 14 via a slip ring 26 and a radial position detection unit 27.
The DC motor 28 has a linear advance / retreat mechanism 29 in the drive unit 14.
It is installed in.

The DC motor 28 is connected to the rotation control circuit 30. Further, the linear advance / retreat mechanism 29 is connected to the linear direction position detector 31 and the linear advance / retreat control circuit 32.

The radial direction position detecting section 27 and the linear direction position detecting section 31 output position signals indicating the positions of the ultrasonic transducer section 12 in the radial direction and the linear direction, and are connected to the system control circuit 33. There is.

The therapeutic ultrasonic transducer 10 passes through the therapeutic signal line 22a and the slip ring 26, and then the transmission cable 1
5, the ultrasonic signal amplifier 6 through the therapeutic cable 15a
Connected to. The ultrasonic signal amplifier 6 is connected to the therapeutic ultrasonic signal oscillator 5. A foot switch 9 is connected to the therapeutic ultrasonic signal oscillator 5.

The ultrasonic transducer 11 for diagnosis passes through the diagnostic signal line 22b, the slip ring 26, and the diagnostic cable 15b of the transmission cable 15 through the ultrasonic observation device 7.
Is connected to the transmission / reception circuit 34 inside. The transmission / reception circuit 34 is connected to a memory 37 via a signal processing unit 35 and an analog / digital (A / D) converter 36. Memory 37 is 3
A digital signal processor (DSP) 38 for performing two-dimensional image processing, and further via a digital / analog converter (D / A) 39, a video signal creating unit 40
It is connected to the. The output terminal of the video signal creation unit 40 is connected to the monitor 3.

The control input terminal of the transmission / reception circuit 34 is connected to the system control circuit 33. The system control circuit 33 is connected to the rotation control circuit 30 and the linear advancing / retreating control circuit 32,
The drive unit 14 is operated by them, and the ultrasonic vibrator unit 1 is operated.
2 to control the radial rotational movement and the linear forward / backward movement.
Then, a moving means for moving the therapeutic ultrasonic vibrator 10 and the diagnostic ultrasonic vibrator 11 in conjunction with each other is configured,
It constitutes exercise stopping means for stopping those exercises. When stopping the radial rotational movement of the ultrasonic transducer unit 12, the system control circuit 33 lowers the rotation speed of the DC motor 28 from that at the time of constructing the diagnostic ultrasonic image, and then controls the rotation control circuit 30 to rotate the DC motor 28. A stop signal is output.

(Operation) The operation of the ultrasonic therapeutic apparatus having the above construction will be described below. (1) Preoperative work Insert the insertion part 13 of the probe 1 into the rectum from the anus of a patient lying on the bed in a supine position. At this time, cooling water is circulated in the insertion section 13 by the probe cooling system 8. The ultrasonic vibrator section 12 is located on the distal end side of the distal end section 16 of the insertion section 13 (the state shown in FIG. 1).

(2) Construction of diagnostic ultrasonic image When the operator operates the keyboard 4 to instruct to start the construction of the diagnostic ultrasonic image, the transmitting / receiving circuit 34 receives a control signal from the system control circuit 33. Output drive pulse. At this time, the rotation control circuit 30 causes the DC motor 28 to rotate at a high speed, and integrally and radially rotates the ultrasonic vibrator unit 12 attached to the rigid shaft 23. A drive pulse is supplied to the diagnostic ultrasonic transducer 11 via the slip ring 26 and the diagnostic signal line 22b.

Therefore, the diagnostic ultrasonic transducer 11 is driven in response to the drive pulse to oscillate ultrasonic waves. The diagnostic ultrasonic wave / therapeutic ultrasonic wave oscillated from the ultrasonic vibrator section 12 is irradiated from the opening 24 toward the organ.

The ultrasonic waves applied to the living body are reflected by the surfaces of the living body having different acoustic impedances, and enter the ultrasonic diagnostic transducer 11 as reflected echoes. Then, the diagnostic ultrasonic transducer 11 outputs an echo signal representing a radial tomographic image corresponding to the reflected echo. This echo signal is input to the transmission / reception circuit 34 via the diagnostic signal line 22b and the slip ring 26. The output of the transmission / reception circuit 34 passes through the signal processing unit 35 and the A / D 36, and is stored in the memory 37 as radial tomographic image data on the leading edge side of the ultrasonic transducer unit 12.
Supplied to

Next, the linear advancing / retreating control circuit 32 operates the linear advancing / retreating mechanism 29 to move the ultrasonic transducer section 12 to the driving section 14 side (hand side) on the central axis of the insertion section 13 at a predetermined pitch. Let

Then, as shown in FIG. 4, radial tomographic image data is acquired for each movement, and the data is transferred to the memory 37. The radial tomographic image data at different linear positions stored in the memory 37 is subjected to three-dimensional image processing by the DSP 38. This DSP38
The image data processed in (1) is displayed on the monitor 3 as a diagnostic ultrasonic image through the digital / analog converter 39 and the video signal creating section 40.

In this embodiment, as shown in FIG. 5, the ultrasonic image displayed on the monitor 3 is not a three-dimensional stereoscopic image,
Radial tomographic image (semicircular display, the angle of view of which corresponds to the length of opening 24 in the circumferential direction) 41 and linear tomographic image 42
It is displayed every time. In the radial tomographic image 41, the index 43
Is displayed as the linear tomographic image 42. Further, the cross section at the position where the index 44 is located in the linear tomographic image 42 is displayed as the radial tomographic image 41.

(3) Positioning of therapeutic ultrasonic transducer The operator looks at the diagnostic ultrasonic image displayed on the monitor 3 and confirms that the affected area 45 is depicted. Affected part 4
When 5 is not drawn, the position of the probe 1 is adjusted and fixed so that the affected part 45 is drawn by adjusting the probe holder 2. After confirming the affected part 45, the operator proceeds to the operation of specifying the treatment position.

A. Positioning of treatment position in linear direction First, the operator specifies a treatment position on the linear tomographic image 42. On the linear tomographic image 42, the ultrasonic transducer for treatment 1
An index 44 indicating a linear position of 0 is displayed.
Therefore, the operator operates the keyboard 4 to give a command to move the index 44 to a desired treatment position. The position signal in the linear direction corresponding to the position of the index 44 is
It is transmitted to the system control circuit 33. The system control circuit 33 outputs a control signal to the linear advance / retreat control circuit 32.
The linear advance / retreat control circuit 32 operates the linear advance / retreat mechanism 29 to move the therapeutic ultrasonic transducer 10 to a linear position corresponding to the position signal.

B. Positioning of Radial Treatment Position Next, the operator designates a treatment position on the radial tomographic image 41. On the radial tomographic image 41, a treatment position indicating index 46 is displayed at the focal position of the therapeutic ultrasonic transducer 10, and the index 46 can move on the circumference of the focal position. The operator operates the keyboard 4 to move the index 46 to a desired treatment position.

Then, the radial direction position signal corresponding to the position of the index 46 is transmitted to the system control circuit 33. Then, when the operator presses a positioning switch (not shown) for the therapeutic ultrasonic transducer on the keyboard 4, the system control circuit 33 outputs a control signal to the rotation control circuit 30 to rotate the DC motor 28. . At this time, the rotation control circuit 30 rotates the DC motor 28 at a lower rotation speed than when constructing the diagnostic ultrasonic image. After that, the system control circuit 33 outputs a signal for stopping the rotation of the DC motor 28 to the rotation control circuit 30.

As the rotation stop signal, when the excessive rotation due to the overrun occurs after the power supply to the DC motor 28 is stopped, the therapeutic ultrasonic transducer 10 is exactly at the designated position.
Is output at such a timing as to stop. That is, overrun control is performed.

When the rotation control circuit 30 receives the rotation stop signal, the power supply to the DC motor 28 is stopped. Since the DC motor 28 is not supplied with power,
Stop rotation.

At this time, due to the inertia of the rotating body, D
The C motor 28 slightly rotates even after the power supply is stopped, and overrun occurs. However, the system control circuit 33
Since the rotation stop signal is output in anticipation of this overrun, the rotation stop position of the DC motor 28, that is, when the position of the therapeutic ultrasonic transducer 10 coincides with the designated position, the rotation is stopped. Since the movement speed of the ultrasonic transducer section 12 is lowered and then the movement is stopped by the movement stopping means, the influence of inertia of the rotating body is small,
The overrun is small and it stops accurately at the specified position.

The system control circuit 33 displays on the monitor 3 that the positioning of the therapeutic ultrasonic transducer 10 is completed. (4) Irradiation of therapeutic ultrasonic waves and confirmation of therapeutic effect After confirming the indication of completion of positioning on the monitor 3, the operator depresses the foot switch 9 to push the therapeutic ultrasonic signal oscillator 5
Thus, a therapeutic ultrasonic signal is output. This signal is amplified by the ultrasonic signal amplifier 6 and transmitted to the therapeutic ultrasonic transducer 10 via the slip ring 26 and the therapeutic signal line 22a.

In response to this signal, the therapeutic ultrasonic transducer 1
0 radiates therapeutic ultrasonic waves toward the affected area 45. This irradiation is continued while the operator steps on the foot switch 9. When the operator stops stepping on the foot switch 9, irradiation of the therapeutic ultrasonic wave stops, and a radial tomographic image 41 of the treatment site is captured. The operator observes the radial tomographic image 41 after the irradiation of the therapeutic ultrasonic waves displayed on the monitor 3 and confirms whether or not the desired treatment has been performed.

When the therapeutic effect is considered to be low, the positioning of the therapeutic ultrasonic transducer 10 and the irradiation of the therapeutic ultrasonic wave are repeated until the desired therapeutic effect is obtained. When another position is to be treated, the position to be treated is specified again, the treatment ultrasonic transducer 10 is positioned, and treatment is performed by irradiating the treatment ultrasonic wave.

In the present embodiment, the ultrasonic transducer section 1
The DC motor 28 is used as a means for radially rotating the motor 2. However, even when a stepping motor is used, if the inertia of the radial rotation is large, an overrun may occur even in the stepping motor. The positioning control method of the acoustic transducer 10 can be applied.

Further, the means for lowering the motion speed of the ultrasonic transducer section 12 directly lowers the rotation speed of the DC motor 28, and also changes the gear ratio for transmitting power from the DC motor 28 to the ultrasonic transducer section 12. It can be changed. As means for stopping the movement, in addition to on / off control of the power supply to the DC motor 28, a case where control for forcibly reducing the rotation in the radial direction by an electromagnetic brake or the like is also applicable.

(Effect) Since the therapeutic ultrasonic transducer is positioned by lowering the rotation speed of the motor, the overrun of the motor and its variation are reduced, and the number of repetitions of positioning of the therapeutic ultrasonic transducer is reduced. As a result, the time required for treatment is shortened, and the time and physical burden on the operator / patient is reduced.

<Second Embodiment> In this embodiment, a control system is constructed to cope with variations in overrun. The following functions are added to the configuration described in the first embodiment. That is, when the therapeutic ultrasonic transducer 10 does not stop at the designated position due to individual differences in overrun and its variation or variation in overrun due to changes over time, the following closed loop control is performed. The ultrasonic transducer 10 is positioned.

(A) The radial position detector 27 detects the position of the therapeutic ultrasonic transducer 10, that is, the DC motor 28.
The rotation stop position is detected and the detected position signal is transmitted to the system control circuit 33.

(B) The system control circuit 33 calculates the deviation between the designated position and the actually stopped position, and corrects the overrun by the deviation. (C) The system control circuit 33 outputs a control signal to the rotation control circuit 30 to rotate the DC motor 28 at a low speed again. After that, when the corrected overrun occurs, the system control circuit 33 outputs a rotation stop signal to the rotation control circuit 30 at the timing at which the therapeutic ultrasonic transducer 10 stops just at the designated position. Upon receiving the rotation stop signal, the rotation control circuit 30 stops the power supply to the DC motor 28 and positions the therapeutic ultrasonic transducer 10.

(D) Unlike the corrected overrun, the generated overrun has a therapeutic ultrasonic transducer 1 at the designated position.
When the stop positions of 0 do not match, the above (a) to
The procedure of (c) is repeated.

Since the site that is degenerated by the irradiation of therapeutic ultrasonic waves has a certain size, even if the position of the therapeutic ultrasonic transducer 10 does not completely coincide with the specified position, It is possible to degenerate the neighborhood. When such modification is allowed, positioning is completed when the therapeutic ultrasonic transducer 10 stops within the allowable range.

Hereinafter, the therapeutic ultrasonic transducer 10 in this case
The positioning of will be described. (A) The operator inputs the allowable range from the keyboard 4 in advance. (B) The input allowable range signal is the system control circuit 3
3 is sent. (C) The therapeutic ultrasonic transducer 10 is positioned. (D) The radial position detector 27 detects the stop position of the therapeutic ultrasonic transducer 10 and sends the detected position signal to the system control circuit 33. (E) The system control circuit 33 compares the allowable range of the designated position with the actually stopped position. If the stop position is within the allowable range, the system control circuit 33 displays on the monitor 3 that the positioning of the therapeutic ultrasonic transducer 10 has been completed.

(Effects) The second embodiment has the following effects in addition to the same effects as the above-described first embodiment. In other words, since the radial direction position detection means detects the overrun and anticipates the corrected overrun, the closed-loop control for positioning the therapeutic ultrasonic transducer is used, so there is individual difference in overrun, The ultrasonic transducer for treatment cannot be positioned or the number of times of positioning does not increase even if the position changes, and smooth positioning can be performed and the treatment time can be shortened.

[Additional Notes] (1) An ultrasonic vibration for diagnosis is provided which has a movement means for moving the diagnostic ultrasonic transducer and the therapeutic ultrasonic transducer in conjunction with each other and a movement stopping means for stopping the movement. In the ultrasonic treatment apparatus, which positions a therapeutic ultrasonic transducer based on a diagnostic ultrasonic image obtained by moving a child and irradiates the lesion with the therapeutic ultrasonic wave, the therapeutic ultrasonic wave is used. An ultrasonic treatment characterized in that, at the time of positioning of the oscillator, the motion speed of the diagnostic ultrasonic vibrator and the therapeutic ultrasonic vibrator by the motion means is lowered and then the motion is stopped by the motion stopping means. apparatus.

(2) Ultrasonic transducer section in which diagnostic ultrasonic transducer and therapeutic ultrasonic transducer are arranged back to back, insertion section in which the ultrasonic transducer section is arranged, and the ultrasonic transducer section Has a rotating means for radially rotating the insertion portion center axis, and a rotation stopping means for stopping the rotation of the rotating means, and when lowering the rotation speed of the rotating means when positioning the therapeutic ultrasonic transducer. An ultrasonic treatment device in a body cavity, characterized in that the rotation stopping means is operated.

(3) The inside of the body cavity according to item 2, wherein the rotating means is a motor, and the rotation stopping means is a motor control circuit for controlling power supply to the motor to control rotation / stop of the motor. Ultrasonic therapy device. (4) The intracorporeal ultrasonic treatment apparatus according to item 2, wherein the rotating means is a DC motor. (5) The intracorporeal ultrasonic treatment apparatus according to item 3, wherein the rotating means is a stepping motor.

[0057]

As described above, according to the present invention, at the time of positioning the therapeutic ultrasonic transducer, the motion speed of the therapeutic ultrasonic transducer is lowered and then the motion of the therapeutic ultrasonic transducer is stopped. Since the stopping means is operated, the number of repetitions of positioning of the therapeutic ultrasonic transducer is reduced, the treatment time is shortened, and the burden on the operator / patient is reduced.

[Brief description of the drawings]

FIG. 1 is an external view of a system of an intra-body cavity ultrasonic treatment apparatus used in a first embodiment.

FIG. 2 is a longitudinal sectional view of an insertion part of a probe connected to the intracavity ultrasonic therapy apparatus used in the first embodiment.

FIG. 3 is a block circuit diagram of the intracavity ultrasonic therapy apparatus used in the first embodiment.

FIG. 4 is an explanatory diagram of a method for constructing a diagnostic ultrasonic image of the intracavity ultrasonic therapy apparatus used in the first embodiment.

FIG. 5 is a diagnostic ultrasonic image of the intracavity ultrasonic treatment apparatus used in the first embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Probe, 3 ... Monitor, 7 ... Ultrasonic observation device, 9
... Foot switch, 10 ... Ultrasonic transducer for treatment, 11 ...
Diagnostic ultrasonic transducer, 12 ultrasonic transducer section, 13 insertion section, 14 drive section, 24 opening, 28 DC motor, 27 radial position detection section, 29 linear advance / retreat mechanism, 33 System control circuit, 34 transmission / reception circuit, 3
5: signal processing unit, 37: memory, 38: digital signal processor.

Claims (1)

[Claims] 1. A diagnostic ultrasonic oscillator comprising: a motion unit for moving the diagnostic ultrasonic oscillator and the therapeutic ultrasonic oscillator in conjunction with each other; and a motion stopping unit for stopping the motion. In the ultrasonic treatment apparatus, which positions the therapeutic ultrasonic transducer based on the diagnostic ultrasonic image obtained by the above and irradiates the lesion with the therapeutic ultrasonic wave, the positioning of the therapeutic ultrasonic transducer is performed. An ultrasonic therapy apparatus characterized in that the motion speed of the diagnostic ultrasonic wave oscillator and the therapeutic ultrasonic wave oscillator is reduced by the motion means, and then the motion is stopped by the motion stop means.