JPS62292157A - Ultrasonic heating remedy apparatus - Google Patents

Abstract

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

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an ultrasonic thermotherapy device for treating an affected area within the body by heating it with ultrasonic waves.

[Conventional technology]

Recently, a treatment method that uses ultrasound to heat the affected area has become known, but the specific method currently proposed is a method that irradiates ultrasound from outside the body (Japanese Patent Laid-Open No. 52 −
(See Publication No. 24093).

[Problem that the invention seeks to solve]

However, in the above method, the transducer itself is formed into a semi-concave spherical shape and the ultrasonic waves are emitted from outside the body, so it is difficult to focus the ultrasonic waves on a distant affected area within the body.

Furthermore, the attenuation in intermediate tissues such as bones was large, and a sufficient therapeutic effect could not be obtained.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide an ultrasonic thermotherapy device that can easily focus ultrasonic waves on the affected part of the body and has high treatment efficiency with less attenuation. It is in.

[Means and effects for solving the problem] The present invention has a concave treatment site abutting surface formed at the tip of the insertion section that transmits ultrasonic vibrations generated by an ultrasonic transducer built into the hand portion. This is an ultrasonic thermal treatment device. When using this, the insertion section is inserted into the treatment site within the body, and the treatment site abutting surface is applied to the treatment site to apply ultrasonic vibrations.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 shows an ultrasonic thermotherapy device to which the present invention is applied, in which 1 is a vibrator built into the hand portion 10, 2 is a conical horn integrated with a metal block portion 2a, and 2b is the horn. This is a horn cap placed around the outer circumference of 2.

In the vibrator 1, in addition to inserting piezoelectric elements 4 and electrode plates 5 alternately into the gel 3 protruding from the end surface of the metal block part 2a, a rear metal block 6 is pushed through the rearmost part. These parts? A Langevin type is used, which is tightened with a nut 7 screwed into the root end. A vibration transmission member 8 made of a small-diameter /4-beam is integrally connected to the tip of the horn 2, so that the ultrasonic vibrations generated by the vibrator 1 can be transmitted to the tip of the vibration transmission member 8. ing.

Also, in the center of the horn 2 and delt 3, there is a photographic transmission member 8.
A hole communicating with the lumen is formed, so that treated tissue, etc. can be discharged out of the body through a suction path 9 formed by the hole and the lumen.

On the other hand, a cylindrical grip cover 11 with a bottom is placed over the outer periphery of the vibrator 1, which is the main body of the hand portion 10. The grip portion cover 11 makes the area around the vibrator 1 completely waterproof. Specifically, the stepped portion 11* formed on the opening side of the grip portion cover 11 is fitted into the stepped portion 12 formed on the outer periphery of the horn 2, and the O-ring 13 is inserted into the end surface of the remaining stepped portion 12.
and a seal ring 14 constructed in the thrust and radial directions. Then, a presser ring 15 is screwed into the gripping portion cover 11 from the opening side to seal the area around the stepped portion 12 from being clamped.

In addition, a hole 16 for checking water leakage is provided on the rear end wall of the gripper 110 adjacent to the suction cap 10 constituting the outlet of the suction path 9. A pressurizing source such as a pressurizing pump (b deviation is also not shown)
By connecting this, it is possible to check for water leakage. Specifically, it can be immersed in a liquid under pressure to determine if there is water leakage based on the presence or absence of air bubbles. Incidentally, reference numeral 17 denotes a screw for closing the hole 16, which is removably screwed into the hole 16. Note that 8 and 18 are drain holes provided in the peripheral wall of the horn cap 2b, and 19 is a power cord connected to the electrode plate 5 of the vibrator 1.

On the other hand, a cylindrical screw part 21 is fitted onto the base end of the vibration transmission member 8 forming the insertion part and fixed by brazing. This threaded part 21 is screwed onto the tip of the horn 2 and is detachably attached thereto. There is also a button so that the vibration transmission member 8 can be attached and detached. Furthermore, a distal tip 22 is attached and fixed to the distal end of the vibration transmitting member 8, and the distal opening of the vibration transmitting member 8 is closed by the distal tip 22. Further, a side hole 23 communicating with the suction path 9 is opened in the side wall of the distal end of the vibration transmission member 8 .

Furthermore, the distal end surface portion of the distal tip 22 is shown in FIGS.
As shown in the figures and FIG. 3, it is formed into a semi-concave spherical shape, thereby forming a treatment site abutment surface 24.

When using this device to treat a patient in a body cavity such as the prostate or bladder, the vibration transmitting member 8, which is an insertion part, is inserted into the body cavity through the sheath 26 of the endoscope 25, as shown in FIG. Insert into. Then, the treatment site abutment surface 2 of the distal tip 22 is placed under the parent pile by the endoscope 25.
4 against the outer surface of the affected area A as shown in FIG.

Therefore, the vibrator 1 is activated to transmit ultrasonic vibrations to the distal tip 22 through the vibration transmission member 8, and the ultrasonic vibrations are transmitted so as to be focused on the affected area A by the action of the spherical surface of the treatment area abutment surface 240. The affected area A is intensively developed and heated. That is, heat is generated by the vibration energy of the living body part in the affected area AK, and the affected person is treated by this heat.

Note that here, the focal point changes depending on the shape (curvature) of the treatment site abutment surface 24. Therefore, the vibration transmitting member 8 is replaced with a vibration transmitting member 8 having an appropriate shape depending on the position of the affected area A. Further, when the tip tip f22 is configured to be detachable and replaceable, only the tip tip fzx may be replaced.

6- Also, during this treatment, blood, floating matter, etc. can be removed by suctioning water from the perfusion liquid gold side hole 23 through the endoscope 25 and perfusing it through the suction path 9. Ensure 25 visual field observations. At this time, if the irrigation fluid is appropriately warm water, the effect of supplementing the heating temperature caused by the ultrasound waves can also be obtained.

Note that when applying to a site where suction perfusion cannot be performed, it is not necessary to connect a suction cheep, and the vibration transmission member 8 may be a metal rod or plastic without a suction path 9 or side hole 23. A stick may also be used.

Further, the shape of the treatment site abutment surface 24 of the present invention is not limited to the concave spherical surface as in the above embodiment, but may be other curved surfaces, and furthermore, the shape of the treatment site abutment surface 24 does not have to be a curved surface in all directions; It suffices if it is at least a curved surface.

Note that FIG. 5 shows an example in which a conical tip 30 is used, and this tip 30 is inserted into the affected area to directly heat it.

Further, FIG. 6 shows an example using a spherical tip 31, which is suitable for a wide range of objects.

In any case, the methods shown in FIGS. 5 and 6 do not have the effect of focusing the ultrasonic vibrations on the affected area, and are different from the method of the present invention.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to easily and reliably focus ultrasonic vibration energy on the affected part of the body, and there is no effect on hard tissues such as bones, and the energy is not attenuated or attenuated. Since the amount is small, a high therapeutic effect can be obtained. In particular, it is possible to focus ultrasonic vibration energy with high density even in a very small affected area to enhance the therapeutic effect.

[Brief explanation of drawings]

Figure 1 is a side sectional view of an embodiment of the device of the present invention, Figure 2 is a perspective view of the distal tip portion thereof, Figure 3 is an explanatory view of the distal tip portion in use, and Figure 4 is the same. FIGS. 5 and 6, which illustrate the device in use, are side views of different types of distal tips. DESCRIPTION OF SYMBOLS 1... Vibrator, 2... Horn, 8... Vibration transmission member (insertion part), 9... Proximal part, 22... Distal tip, 24... Treatment site abutment surface.

Claims (2)

[Claims] (1) Equipped with a hand portion containing an ultrasonic transducer, an insertion portion that transmits ultrasonic vibrations and is to be inserted into the body, and a concave treatment site abutting surface formed at the tip of the insertion portion. An ultrasonic thermal treatment device characterized by: (2) The ultrasonic thermal treatment device according to claim 1, wherein a distal tip forming the treatment site abutment surface is detachably attached to the distal end of the insertion section.