JPH03277362A - Ultrasonic medical treatment device - Google Patents

Abstract

PURPOSE:To exactly irradiate the coagulated object with an ultrasonic wave for quickening to melt the coagulated object by positioning an ultrasonic probe and an ultrasonic vibrator by a positioning means so that one of the visual field center axis of the ultrasonic probe and the center axis of ultrasonic irradiation of the ultrasonic vibrator is placed selectively. CONSTITUTION:An ultrasonic probe 22 is attached through an elastic member 50 to a supporting member 30 fixed to a rotating body 21. Also, an ultrasonic applicator 14 is fixed to the rotating body 21 in a position being symmetrical to the ultrasonic probe 22 centering around the center axis 35 of the rotating body 21. Moreover, the center axis 35 of the rotating body 21, the visual field center axis 36 of the ultrasonic probe 22, and the center axis 37 of ultrasonic irradiation of the ultrasonic applicator 14 are placed so that they are in parallel to each other, and also, distances from the axis 36 and 37 from the axis 35 become equal to each other. The ultrasonic applicator 14 is provided with a housing 14a, and in this housing 14a, an ultrasonic vibrator 38 is attached, and this ultrasonic vibrator 38 is placed so that the center axis of its ultrasonic irradiation coincides with the axis 37.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is a method for administering a medicinal solution to dissolve clots in the body such as gallstones and face ulcers, and applying ultrasound to promote the dissolution of the clots. The present invention relates to an ultrasonic treatment device that irradiates and dissolves coagulum.

[Prior art] Conventionally, Japanese Patent Application Laid-open No. 154323/1983 and Japanese Patent Application Laid-open No. 62-
As disclosed in Publication No. 120846, etc., there is an ultrasonic therapy device that introduces a medicinal solution that dissolves or promotes the dissolution of stones such as gallstones into the vicinity of the stones in the body, and irradiates ultrasonic waves to dissolve the stones. Are known. The former involves orally administering a drug compound containing bile acids and promoting the dissolution of clots through ultrasound irradiation, while the latter involves transdermally injecting a solvent such as monooctanoin into the body. Ultrasonic irradiation promotes the dissolution of agglomerates.

[Problems to be Solved by the Invention] However, in the device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 63-154623, there is a method for positioning the ultrasonic vibrator when irradiating ultrasonic waves for promoting dissolution of agglomerates. is not described, and it is considered difficult to irradiate the coagulum accurately.

On the other hand, in the device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 62-120846, an ultrasonic probe for observing agglomerates and an ultrasonic vibrator for promoting dissolution of agglomerates are placed coaxially and at the same focus. Although it is possible to irradiate ultrasonic waves with precise positional relationship to the lump, the ultrasonic probe and ultrasonic transducer are placed coaxially and at the same focus, making the device larger and more complex. There is a problem.

In addition, in order to efficiently irradiate the coagulum with ultrasonic waves for promoting coagulum dissolution, it is necessary to adjust the position of the coagulum and the ultrasonic sound field generated by the ultrasonic transducer for promoting coagulum dissolution. MrlA needs to be accurate.

The present invention has been made in view of the above-mentioned circumstances, and provides an ultrasonic treatment device that has a simple configuration and is capable of irradiating ultrasonic waves for promoting dissolution of clots in an accurate positional relationship to the clots. It is intended to.

The present invention further provides an ultrasonic sound generated by an ultrasonic transducer for promoting dissolution of agglomerates in order to efficiently irradiate the agglomerates with ultrasonic waves for promoting dissolution of agglomerates with a simple configuration. It is an object of the present invention to provide an ultrasonic treatment device that can adjust the positional relationship between the field and the coagulum.

[Means for Solving the Problems] The ultrasonic treatment device of the present invention introduces into the living body a medicinal solution that dissolves coagulum in the living body, and promotes dissolution of the coagulum in the vicinity of the coagulum. An apparatus for dissolving the agglomerates by irradiating ultrasonic waves for dissolving the agglomerates, an ultrasonic probe for observing the agglomerates, and irradiating ultrasonic waves for promoting dissolution of the agglomerates. the ultrasonic transducer, and one of the central axis of the field of view of the ultrasonic probe and the central axis of ultrasound irradiation of the ultrasonic transducer is selectively arranged on the same axis. The apparatus includes a probe and positioning means for positioning the ultrasonic transducer.

The ultrasonic treatment apparatus of the present invention further includes an ultrasonic transducer support means that supports the ultrasonic transducer movably in the central axis direction of ultrasonic irradiation and is positioned by the positioning means, and the ultrasonic transducer supporting means is positioned by the positioning means. is for positioning so that the axial positional relationship between the ultrasound probe and the ultrasound transducer support means is a predetermined one in a state where each of the central axes is arranged on the same axis. It is.

[Operation] In the present invention, one of the central axis of the field of view of the ultrasound probe and the central axis of ultrasound irradiation of the ultrasound transducer is selectively arranged on the same axis by the positioning means.

Further, the ultrasonic transducer is supported movably in the direction of the central axis of ultrasonic irradiation by ultrasonic transducer supporting means, and the positioning means is configured to detect the ultrasonic transducer when the ultrasonic transducer is disposed on the same axis. The tentacle and the ultrasonic transducer supporting means are positioned so that the axial positional relationship is a predetermined one.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

Figures 1 to 3 relate to the first embodiment of the present invention.
The figure is a cross-sectional view showing the vicinity of the ultrasound probe and the ultrasound applicator, Figure 2 is an explanatory diagram showing the overall configuration of the ultrasound treatment device, and Figure 3 is a cross-section taken along the A△- line in Figure 2. It is a diagram.

As shown in FIG. 2, a human body 2 to be treated by the ultrasonic treatment device 1 is placed on a treatment table 3, and there are stones (gallstones) in the gallbladder 4 of the human body 2, which is the treatment site. 5 has occurred. The distal end of a catheter 6 is percutaneously inserted into the gallbladder 4 . This catheter 6 is formed of a porous tube, and includes an injection conduit 5a, a suction conduit 6b,
It has three lumens of pressure pipe 6C. and,
The three ducts of the six catheters are branched at the rear end of the catheter, and the infusion duct 6a is connected to an infusion pump tube 8a via a connector 7a, and the suction duct 6b is connected to a suction pump via a connector 7b. The pressure line 6c is connected directly to the pressure sensor 9. An infusion pump 10 is disposed in the middle of the infusion pump duplex 88, and the other end of the infusion pump tube 8a on the opposite side from the connector 7a is connected to a stone dissolving agent, such as monooctanoin, d-limonene, etc. It is connected to a liquid tank 12 containing methyl t-butyl ether (MTBE) and refol. In addition, a suction pump 11 is disposed in the middle of the suction pump tube 8b, and the other end of the suction pump tube 8b on the opposite side from the connector 7b is used for putting liquid collected from the treatment site. It is connected to the drain tank 13. Further, the infusion pump 10 and the bow pump 11 are connected to an input control device 20 via a control unit 19, and the control unit 19
The rotation speed of each pump 10, 11 can be freely set by the input control device 20, and the rotation speed of each pump 10, 1
The drive time of pump 10.1 and the switching operation of pump 710.11 are set, and pump 10.11 operates according to the settings.

Further, an ultrasonic applicator 14 is provided so as to face the human body 2 . This ultrasonic applicator 14
has an ultrasonic transducer therein for irradiating ultrasonic waves for promoting dissolution of agglomerates, and includes a sleeve 29 and a rotating body attached to the tip of the support member 21 disposed at the tip of the support arm 15. Supported by 21. The ultrasonic applicator 14 is also connected to an amplifier 17 via an electric cable 16;
8 is connected. Furthermore, the oscillator 18 is connected via a control unit 19 to an input control device 20 which controls the frequency, number of pulses and pulse interval set by the device 20.

A signal corresponding to the drive time is output from the oscillator 18, the signal is amplified by the amplifier 17, and the signal is output from the ultrasonic applicator 1.
4, ultrasonic waves are generated. The emitted ultrasound waves are transmitted to the stone 5 present in the gallbladder 4 of the human body 2.
It is designed to irradiate the vicinity of the area. Further, the rotating body 21 is configured to detachably hold an ultrasonic probe 22 for observing coagulum at symmetrical positions with respect to the central axis 35 of the rotating body 21. Further, the ultrasonic probe 22 and the ultrasonic applicator 14 are connected to the rotating body 2.
By rotating 180 degrees around 1, the central axis of the observation field of the ultrasound probe 22 and the central axis of the ultrasound irradiation area of the ultrasound applicator 14 are made to coincide. The ultrasonic probe 22 is connected to an ultrahigh wave observation device 23 so that an ultrasonic image including the gallbladder 4 of the human body 2 is displayed on a display 24.

In addition, a power switch 25 connected to a power source is installed, and this power switch 25 is connected to the infusion pump 10 through an isolation transformer 26. Suction pump 11, amplifier 179 oscillator 18. Control unit 19, input 11J m
It is connected to the device 20. Then, by turning on the switch 25, the infusion pump 10. Suction pump 11. Amplifier 17° Oscillator 18. Control unit 19. Power is supplied to the input control device 20.

Further, the pressure sensor 9 is provided on the rail 27,
It is movable vertically on this rail 27,
It is designed to be fixed at any position on the rail 27.

Here, the connectors 7a, 7b, the injection pump 10, the suction pump 11. Liquid tank 12. Drainage tank 13° amplifier 172 oscillator 18. Control unit 19, input control II device 20. Power switch 25. The insulation transformer 26 and the rail 27 are installed or fixed on the main body rack 28.

Next, the means for positioning the ultrasonic applicator 14 and the ultrasonic probe 22 will be explained using FIGS. 1 and 3.

As shown in FIG. 1, the sleeve 29 has a spherical portion 29a at its upper end, and is attached to the arm 15 via this spherical portion 29a so as to be able to change its angle. The rotating body 21 is rotatably attached to the sleeve 29. That is, positioning grooves 32a and 32b are provided on the outer peripheral portion of the rotating body 21 in parallel to the axial direction at symmetrical positions with respect to the central axis (positions that are 180 degrees different from each other). A positioning pin 33 attached to the sleeve 29 is engaged in one of the grooves 32a. The positioning pin 33 is biased by a coil spring in the direction of engaging the groove 328, and the positioning pin 33 and the groove 328
The rotational direction of the rotating body 21 is positioned by engagement with the rotating body 21a. In addition, a fall stop pin 31 attached to the two sleeves is engaged in the other half 32b near its upper end, and the positioning pin 33
A fixing screw 34 screwed into the sleeve 29 is engaged at a position facing the sleeve 29 . The fall stop pin 31 is biased by a coil spring in the direction of engaging the groove 32b, and the fall stop pin 31 causes the rotating body 21 to
is arranged so that it does not fall against the sleeve 29.

Further, by tightening the fixing screw 34, the rotating body 21 is fixed to the sleeve 29.

The ultrasonic probe 22 is attached to a support member 30 fixed to the rotating body 21 via an elastic member 50. Further, the ultrasonic applicator 14 is fixed to the navigation rotating body 21 at a position symmetrical to the ultrasonic probe 22 with the central axis 35 of the rotating body 21 as the center. Further, the central axis 35 of the rotating body 21, the visual field central axis 36 of the ultrasound probe 22, and the central axis 37 of ultrasound irradiation of the ultrasound applicator 14 are parallel to each other, and the axis 36° 37
are arranged such that the distances from the axis 35 are the same. The ultrasonic applicator 14 has a housing 14a, and an ultrasonic vibrator 38 is installed inside the housing 14a. This ultrasonic transducer 38 is arranged so that its central axis of ultrasonic irradiation coincides with the axis 37 . Further, an elastic membrane 40 is provided on the front surface of the ultrasonic transducer 38, and an ultrasonic transmission medium 39 such as water is held within the elastic membrane 40.

Next, the operation of the ultrasonic treatment apparatus 1 configured as described above will be explained.

First, the arm 15 and sleeve 29 are operated, and the vicinity of the gallbladder 4 is searched with the ultrasound probe 22. Once the gallstone 5 is captured at the center of the display 24 of the ultrasonic observation device i23, the arm 15 and the sleeve 29 are fixed. this is,
The central axis 36 of the ultrasound probe 22 and the gallstone 5 are fixed coaxially. Next, loosen the fixing screw 34 of the rotating body 21, remove the positioning pin 33 from the positioning Xi 32a, rotate the rotating body 21 by 180 degrees until the positioning pin 33 fits into the positioning groove 32b, and remove the fixing screw 34. Fix it with. By this operation, the gallstone 5 and the central axis 37 of the ultrasonic applicator 14 are fixed coaxially. Next, numerical values such as the amount of dissolving agent injected, the ultrasound irradiation time, and the dissolving agent discharge 1 are input into the input control device 20, and the control unit 19 controls the device based on these values to perform dissolving treatment of the gallstones 5. . When the treatment is completed, the rotating body 21 is rotated 180 degrees, the ultrasonic applicator 14 and the ultrasonic probe 22 are replaced, and the state of dissolution of the gallstones 5 is confirmed using the ultrasonic observation device 23. Here, if gallstones 5 are found, the rotating body 21 is rotated 180 degrees again, the ultrasonic applicator 14 is set on the human body 2, and the above operation is repeated. Once the gallstones 5 have been completely dissolved, operate the arm 15 and use the ultrasound applicator 14 or the ultrasound probe 22.
is removed from the human body 2, the catheter 6 is removed, and the treatment is completed.

As described above, according to this embodiment, the field of view center axis 36 of the ultrasonic probe 22 and the ultrasonic abductor 14 (ultrasonic transducer 38) are arranged on the same axis in a small, cylindrical configuration. Since one of the central axes 37 for sonic wave irradiation can be selectively placed, it is possible to irradiate ultrasonic waves for promoting gallstone dissolution in an accurate positional relationship with respect to the gallstones 5 confirmed by the ultrasound probe 22.

FIG. 4 is a sectional view showing a sleeve and a rotating body in a second embodiment of the present invention.

The overall configuration of the ultrasonic treatment apparatus of this embodiment is substantially the same as that of the first embodiment shown in FIG. 2, and FIG. 4 is a sectional view taken along the line Δ-8 in FIG. 2.

In this embodiment, a plurality of ultrasonic applicators can be removed at the same time.

Ultrasonic probe 22 and two ultrasonic applicators 41.4
2 is fixed to the rotating body 21, and the central axis of the field of view of the ultrasound probe 22 and the central axis of each ultrasound irradiation of the ultrasonic applicators 41 and 42 are the same circle that covers the central axis of the rotating body 21. They are placed 120 degrees apart from each other on the circumference. The oscillation frequency of one ultrasonic applicator 41 is, for example, 40
kHz.

The oscillation frequency of the other ultrasonic applicator 42 is, for example, 8
It is 0kH2. The rotating body 21 is rotatably supported by a sleeve 29. In this embodiment, the rotating body 2
Positioning grooves 43a, 43b, and 43c are provided in parallel to the axial direction at positions spaced apart by 120 degrees from each other on the outer periphery of the two. Then, the positioning pin 33 and the fixing screw 34 attached to the slot 129 are respectively engaged in two of these grooves 43a, 43b, and 43c, and the rotating body 2
1 is positioned and fixed relative to the sleeve 29. In addition, in FIG. 4, the positioning bin 3
3 is engaged in the groove 4.3b, and the fixing screw 34 is m43c.
has been involved.

The other configurations are the same as in the first embodiment.

Next, the operation of the ultrasonic treatment device of this embodiment will be explained.

First, by operating the sleeve 29, the ultrasonic probe 22T:
The position of the gallstone 5 is confirmed, and the center axis of the probe 22 is aligned with the gallstone 5. Next, loosen the fixing screw 34, remove the positioning pin 33 from the positioning groove 4.3b, and rotate the rotating body 21 by 120 degrees so that the ultrasonic applicator with the required oscillation frequency is on the axis passing through the gallstone 5. Then, the positioning pin 33 is fitted into the positioning groove 43a or 43C. After the rotating body 21 is fixed with the fixing screw 34, ultrasonic waves are irradiated with an ultrasonic applicator. In this case, the method of selecting and using the ultrasonic applicator is, for example, as follows. That is, the size of the gallstone 5 is confirmed on the display 24 of the ultrasonic observation device 23, and if it is larger than the standard, an ultrasonic applicator 41 with a long wavelength of 40 kHz is applied.
Use. After the treatment using this ultrasound applicator 41 has elapsed for a certain period of time, the ultrasound observation device 23 is used again to detect the gallstones 5.
Check the size and if it is smaller than the standard, 8
The treatment is continued by replacing the 0 kHz ultrasound applicator 42.

In this way, according to this embodiment, it is possible to attach multiple ultrasonic applicators with different frequencies to the surrounding area.
This allows for easy settings when performing a variety of treatments.

Other functions and effects are similar to those of the first embodiment.

5 and 6 relate to a third embodiment of the present invention, FIG. 5 is a side view showing the receiving part of the ultrasonic probe and the ultrasonic applicator, and FIG. 6 is a fixing member and a sliding member. FIG.

In this embodiment, the ultrasonic probe and the ultrasonic applicator are moved in parallel so that they can be selectively placed on the same axis passing through the gallstones 5.

As shown in FIG. 5, a fixing member 44 is rotatably attached to the arm 15 by a ball joint. This fixing member 44 has a recess 44 formed in the horizontal direction.
A is provided. A slide member 45 is slidably fitted into this recess 44a. The ultrasonic probe 22 and the ultrasonic applicator 14 are fixed to this slide member 45. The central axis of field of view 7'I6 of the ultrasound probe 21 and the central axis 47 of ultrasound irradiation of the ultrasound applicator 14 are parallel to each other and perpendicular to the moving direction of the slide member /15. It has become.

As shown in FIG. 6, the slide member 45 is provided with positioning holes 49 at positions facing the ultrasound probe 22 and the ultrasound applicator 14, respectively. On the other hand, a positioning stopper 48 that fits into the positioning hole 49 is attached to the fixing member 44 . This positioning header 48 is biased by a spring (not shown) in a direction to engage the four positioning holes. Then, by engaging the positioning stopper 48 into the positioning hole 49, the ultrasonic applicator 14
and the ultrasound probe 22 are selectively positioned on the same axis.

In this embodiment, first, the fixing member 44 is operated, the position of the gallstone 5 is confirmed with the ultrasonic probe 22, the gallstone 5 is aligned with the shaft 46, and the fixing member 44 is fixed to the arm 15. next,
By operating the positioning stopper 48, the slide member 45 is moved in parallel so that the central axis 47 of the ultrasonic applicator 14 is positioned above the gallstone 5, and then fixed. Next, the first. Second
Input as in the example! The IJ'a device 20 is operated to perform treatment.

As described above, according to this embodiment, the ultrasonic applicator 14
can be translated in parallel on the axis passing through the gallstones 5, and with a small and simple configuration, it is possible to irradiate the gallstones 5 with ultrasonic waves in an accurate positional relationship.

Other functions and effects of Structure 2 are the same as those of the first embodiment.

FIG. 7 is a partially cutaway side view showing an ultrasound probe and an ultrasound applicator in a fourth embodiment of the present invention.

In this embodiment, the arm fixing member 58 is attached to the arm 15.
is installed. This arm fixing member 58 includes
The ultrasonic applicator 54 is fixed, and an ultrasonic probe fixing member 57 and an ultrasonic probe rotation fixing member 56 are placed at a position symmetrical to the ultrasonic applicator 54 about the central axis of the arm fixing member 58. An ultrasound probe 55 is rotatably fixed therebetween.

The ultrasonic applicator 54 is attached to the arm fixing member 5
8, and an inner cylinder part 63 that is slidably fitted into the outer cylinder part 59. A pouch 61 made of latex, for example, is provided at the lower end of the five outer parts, and the pouch 61 and the outer cylinder part 59 are filled with an ultrasonic transmission medium 60 such as deaerated water. Further, an ultrasonic transducer (here, a bolted Langevin transducer) 62 is installed inside the inner cylinder part 63 while maintaining watertightness inside and outside the inner cylinder part 63.

Further, a connector 64 for connecting the amplifier 17 and the ultrasonic transducer 62 is provided at the upper end of the inner cylinder part 63, and current from the amplifier 17 is supplied to the ultrasonic transducer 62 via this connector 64. It is now possible to do so. Further, an ultrasonic transmission medium 60 is provided at the upper end of the inner cylinder part 63 into the outer cylinder part 59 via a liquid supply passage in the side wall of the inner cylinder part 63.
A pot 5 for injecting is provided. This cot 5 is connected via a chicove 66 to a tank (not shown) in which an ultrasonic transmission medium is stored.

Furthermore, a knob 68 for moving the inner cylinder part 63 up and down is provided at the upper end of the inner cylinder part 63.

Moreover, an O-ring 67 is provided between the inner cylinder part 63 and the five outer parts to maintain watertightness between them.

Further, a scale 90 is provided on the outer circumference of the inner cylinder part 63 so that the positional relationship with the outer cylinder part 59 can be seen.

The arm fixing member 58 is made up of, for example, the sleeve 29 and the rotating body 21 in the first embodiment, and by rotating it by 180 degrees, the ultrasonic probe 55 and the ultrasonic app 9 can be connected to each other as in the first embodiment. - gallstones 5 and gallstones 5 selectively.
It can be positioned on the axis passing through. Also,
With the ultrasound probe 22 positioned on the axis passing through the gallstone 5, the surface (reference surface) 69 of the ultrasound probe 22 and the surface (reference surface) of the ultrasound applicator 54 are aligned with the surface 70 of the straw pouch 61. The positions match and cover.

The other configurations are the same as in the first embodiment.

Next, the operation of this embodiment will be explained.

During the treatment, first, the position of the gallstone 5 is confirmed using the ultrasonic probe 55. Next, the ultrasonic applicator 54
is moved to the position observed by the ultrasonic probe 55. At this time, the position of the surface 70 of the pouch 61 and the position of the ultrasonic probe 55
The positions of the surfaces 69 of the two surfaces coincide with each other. Furthermore, the distance from the body surface to the gallstones 5 can be measured using the ultrasonic probe 55.

1, that is, the distance from the surface 70 of the pouch 61 to the gallstone 5 is determined. Therefore, if the distance from the body surface, that is, the surface 70 of the pouch 61 to the ultrasound irradiation surface of the ultrasound transducer 62 of the ultrasound applicator 54 is known, the distance from the ultrasound irradiation surface to the gallstone 5 can be found. The distance from the surface 70 of the pouch 61 to the ultrasonic irradiation surface of the ultrasonic transducer 62 of the ultrasonic applicator 54 can be determined by holding the knob 68 and moving the inner cylinder part 63 up and down with respect to the outer cylinder part 59. It can be adjusted and determined by the scale 90 provided on the inner cylinder portion 54. In this way, by moving the inner cylinder part 63 up and down with respect to the outer cylinder part 59, the ultrasonic transducer 62 and the gallstones 5 are moved so that the ultrasound irradiation state and sound field are suitable for treatment. The positional relationship between the two can be adjusted.

As described above, according to this embodiment, the ultrasonic probe 55 and the outer cylinder part 63 of the ultrasonic applicator 54 are fixed so that the positional relationship between the respective reference planes is clear, and the ultrasonic probe After observing the position of the gallstones 5 using the gallstone 55, the ultrasonic applicator 54 is placed on the axis passing through the gallstones 5, and the inner tube 63, on which the ultrasonic transducer 62 is fixed, is placed against the outer tube 59. By moving it with a simple structure and a compact mechanism, treatment can be performed in the most efficient therapeutic ultrasound irradiation state.

Other functions and effects are similar to those of the first embodiment.

FIG. 8 is a partially cutaway side view showing an ultrasonic probe and an ultrasonic applicator in a fifth embodiment of the present invention.

In this embodiment, an ultrasonic transducer 71 is provided in the inner cylinder part 63, and a parabolic reflecting mirror 74 is provided at the lower end of the inner cylinder part 63.
is fixed. Further, a conical cone 73 is provided in front of the ultrasonic irradiation surface of the ultrasonic transducer 71. This cone 73 is fixed to the lower end of the reflecting mirror 74 by a support member 72.

In this embodiment, the ultrasonic waves emitted from the ultrasonic transducer 71 are reflected by the cone 73, further reflected by the reflecting mirror 74, and focused.

According to this embodiment, by moving the inner cylinder part 63 with respect to the outer cylinder part 59, the focusing area of therapeutic ultrasound can be aligned with the gallstones 5, and more effective treatment can be performed. becomes.

Other functions and effects of Configuration 1 are the same as those of the first or fourth embodiment.

FIG. 9 is a partially cutaway side view showing an ultrasonic probe and an ultrasonic applicator in a sixth embodiment of the present invention.

In this embodiment, the ultrasonic probe 55 and the ultrasonic applicator 83 are attached to the arm fixing part 058. These positional relationships are the same as in the fourth actual journey example. The ultrasonic applicator 83 includes an outer cylinder part 80 and an inner cylinder part 76 that is slidably fitted into the outer cylinder part 80. An ultrasonic transmission medium 60 is provided at the lower end of the outer cylindrical portion 80.
A pouch 61 holding the is fixed. Furthermore, a concave ultrasonic transducer 75 made of, for example, PZT or barium titanate is fixed to the lower end of the inner cylinder portion 76 in a watertight manner. Further, a cylindrical ultrasonic probe fixing portion 78 is provided through the inward portion 76 . The ultrasonic probe fixing part 78 is fixed to seven fixing members fixed to the lower end of the outer cylinder part 80. An ultrasonic probe 77 is detachably inserted and fixed into the ultrasonic probe fixing portion 78 .

According to this embodiment, while observing the gallstones 5 with the ultrasonic probe 77 installed in the ultrasonic applicator 83,
By adjusting the position of the inner cylinder portion 76, it becomes possible to easily and more accurately position the ultrasonic transducer 75.

In addition, at first, the ultrasonic probe 77 is removed from the ultrasonic applicator 83, a rough inspection is performed, and then,
The ultrasonic probe 77 may be inserted and fixed into the ultrasonic probe fixing portion 78 for accurate positioning.

Furthermore, gallstones 5 can be observed in real time during treatment.

The other functions and effects of Configuration 1 are the same as those of the first or fourth actual journey example.

It should be noted that the present invention is not limited to the above-mentioned examples, and for example, the ultrasonic probe and the ultrasonic transducer for promoting dissolution are not moved integrally, but the ultrasonic probe and the ultrasonic vibrator are moved together. One of the vibrators may be selectively fixed, and a positioning section may be provided that can position both vibrators.

In addition, the present invention is applicable not only to gallstones but also to any treatment for dissolving clots in the body, such as thrombolysis.

[Effects of the Invention] As explained above, according to the present invention, one of the central axis of the field of view of the ultrasound probe and the central axis of ultrasound irradiation of the ultrasound transducer is selected on the same axis by the positioning means. The ultrasonic probe and the ultrasonic transducer are positioned so that they are placed in the desired position, so the ultrasonic probe and the ultrasonic transducer are positioned so that the ultrasonic wave for promoting the dissolution of the agglomerates can be applied to the agglomerates in a precise positional relationship with respect to the agglomerates with a simple configuration. This has the effect of making it possible to irradiate the area.

Further, the positioning means positions the ultrasonic probe and the ultrasonic transducer support means so that the axial positional relationship is a predetermined one, and the ultrasonic transducer irradiates the support means with ultrasonic waves. Since it can be moved in the direction of the central axis, the positional relationship between the ultrasonic sound field generated by the ultrasonic transducer for promoting the dissolution of agglomerates and the agglomerates can be adjusted with a simple configuration, which promotes the dissolution of the agglomerates. This has the effect of making it possible to efficiently irradiate the coagulum with ultrasonic waves.

[Brief explanation of the drawing]

Figures 1 to 3 relate to the first embodiment of the present invention.
The figure is a cross-sectional view showing the vicinity of the ultrasonic probe and the ultrasonic applicator; , FIG. 4 is a sectional view showing the sleeve and rotating body in the second embodiment of the present invention, and FIGS. 5 and 6 relate to the third embodiment of the present invention,
FIG. 5 is a side view showing the attachment part of the ultrasonic probe and the ultrasonic applicator, FIG. 6 is a sectional view showing the fixing member and the sliding member, and FIG. 7 is an ultrasonic probe in the fourth embodiment of the present invention. A partially cutaway side view showing a sonic probe and an ultrasonic applicator;
FIG. 8 is a partially cutaway side view showing an ultrasonic probe and an ultrasonic applicator in a fifth embodiment of the present invention, and FIG. 9 is a partially cutaway side view showing an ultrasonic probe and an ultrasonic applicator in a sixth embodiment of the present invention. FIG. 3 is a partially cutaway side view showing the applicator. 1... Ultrasonic treatment device 14... Ultrasonic applicator 21... Rotating body 29... Sleeve 22...
...Ultrasonic probe 38...Ultrasonic transducer 32a,
32b...Positioning groove 33...Positioning pin 3/l...Fixing screw 1 Fig. 3 Fig. +4 Fig. 4 Fig. 2 Fig. 5 Fig. 7 Fig. 8 Fig. 9

Claims (2)

[Claims] (1) A chemical solution that dissolves the coagulum in the body is introduced into the body, and ultrasonic waves are irradiated near the coagulum to promote dissolution of the coagulum to dissolve the coagulum. In an ultrasonic treatment device, an ultrasonic probe for observing the coagulum and an ultrasonic transducer for emitting ultrasonic waves for promoting dissolution of the coagulum are placed on the same axis. The ultrasound probe and the ultrasound transducer are positioned so that one of the central axis of the field of view of the ultrasound probe and the central axis of ultrasound irradiation of the ultrasound transducer is selectively arranged. An ultrasonic treatment device comprising: positioning means. (2) Further, an ultrasonic transducer supporting means is provided which supports the ultrasonic transducer movably in the direction of the central axis of ultrasonic irradiation and is positioned by the positioning means, and the positioning means is configured to support each of the central axes of the ultrasonic transducer. Claim: wherein the ultrasonic probe and the ultrasonic transducer supporting means are positioned so that a predetermined positional relationship in the axial direction is obtained when they are disposed on the same axis. 1. The ultrasonic treatment device according to 1.