JP2000005190A - Ultrasonic therapy device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic therapy device in which an oscillation transmission member is easily attached and detached from a horn. SOLUTION: In an ultrasonic therapy device which is provided with an ultrasonic oscillator, an amplifying horn for amplifying ultrasonic wave generated from this ultrasonic oscillator and an oscillation transmission member 12 fastened with a screw to this amplifying horn, a rotation torque imparting portion 22, which can be grabbed by fingers and can impart rotation torque for attaching/detaching the oscillation transmission member to/from the amplifying horn to the oscillation transmission member, when a force is impressed in the rotation direction, is placed on the outer periphery of the rotation torque imparting portion 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic treatment apparatus for treating an affected part using ultrasonic vibration energy.

[0002]

2. Description of the Related Art Conventionally, there has been known an ultrasonic therapy apparatus for ablating or crushing a living body by using the vibration energy of ultrasonic vibration. In this type of ultrasonic treatment apparatus, usually, an ultrasonic transducer and a vibration amplification horn are provided in a cover main body, and a vibration transmission member is fixedly connected to the horn through fastening means such as a screw. ing. Therefore, when the ultrasonic vibrator is driven while the tip of the vibration transmitting member is in contact with a treatment target site such as a living tissue or a calculus, the ultrasonic vibration generated by the ultrasonic vibrator causes the vibration amplifying horn and the vibration transmitting member to move. And acts on a treatment target site such as a living tissue or a calculus, and the vibration energy causes the treatment target site to be cut or crushed, for example.

[0003]

By the way, conventionally, when a vibration transmitting member is connected to a horn, a dedicated spanner is hung on the vibration transmitting member and the vibration transmitting member is rotated with respect to the horn, so that both are firmly connected. Was secured.
However, when the two parts are fastened using a dedicated spanner as described above, there is a risk that the sterilization of the spanner may be forgotten or the spanner may be lost.

[0004] In addition, when the vibration transmitting member is replaced during the operation, there may be a problem that the replacement operation takes time. In other words, when several types of vibration transmitting members are used during the operation, a spanner must be hung on the vibration transmitting member and the vibration transmitting member must be rotated with respect to the horn to replace the vibration transmitting member every time the treatment content changes. Must. This requires a great deal of labor and causes problems such as a long operation time. Also, in order to prevent such problems,
It is conceivable to prepare a plurality of types of horns, that is, handpieces having different vibration transmitting members in advance, so that the replacement operation is not performed. However, in this case, the operation cost is increased.

There is still another problem. That is, when the vibration transmitting member and the horn are connected using a dedicated spanner, the amount of tightening force of the two cannot always be constant. This is because, for example, there are individual differences in handling. Therefore, a situation may occur in which the ultrasonic transmission is not generated at all or the driving efficiency is deteriorated because the vibration transmitting member is excessively loosely fastened to the horn. On the other hand, a situation may occur in which the vibration transmitting member cannot be detached from the horn because the vibration transmitting member is excessively fastened to the horn.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ultrasonic therapy apparatus in which a vibration transmitting member can be easily attached to and detached from a horn.

[0007]

In order to solve the above-mentioned problems, the present invention provides an ultrasonic vibrator, an amplifying horn for amplifying an ultrasonic wave generated from the ultrasonic vibrator, and an amplifying horn. In an ultrasonic treatment apparatus having a screw-transmitted vibration transmitting member, a rotational torque that can be gripped by a finger of a hand and detachable from the amplification horn when a force is applied in the rotational direction. The invention is characterized in that a rotational torque applying portion that can be applied to the vibration transmitting member is provided on an outer periphery of the vibration transmitting member.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an ultrasonic therapy apparatus 1 according to one embodiment of the present invention. As shown in the figure, an ultrasonic therapy apparatus 1 of the present embodiment includes a handpiece 10 and a vibration transmitting member (hereinafter, referred to as a probe) 12 which is detachably attached to the handpiece 10 and is formed of a titanium alloy, duralumin, or the like. Consists of Specifically, the handpiece 10 includes an ultrasonic vibrator 2 such as a bolted Rajbang type vibrator, which forms ultrasonic generating means, and is coupled to the ultrasonic vibrator 2 and generated by the ultrasonic vibrator 2. A horn 3 for amplifying the ultrasonic vibration thus produced, and a cover 5 which is detachably mounted on the outside of the apparatus main body including the ultrasonic vibrator 2 and the horn 3 and constitutes a holding portion.

The probe 12 has a proximal male screw portion detachably screwed to a female screw portion at the distal end of the horn 3 (other than a screw screw. In other words, the proximal end of the probe 12 may be used). May be attached to and detached from the tip of the horn by rotation.), And transmits the ultrasonic vibration amplified by the horn 3. The distal end side of the cover 5 is formed as a tubular sheath 5 a provided so as to cover the outside of the probe 12.

The ultrasonic transducer 2 has a plurality of stacked elements, and the elements may be either an electrostrictive type or a magnetostrictive type. Further, the space between the sheath 5a, the probe 12, and the horn 3 may be used as a liquid sending passage for guiding the cooling fluid to the opening on the distal end side of the sheath 5a.

The ultrasonic therapy apparatus 1 is electrically connected to an ultrasonic oscillator (not shown), and the ultrasonic power is supplied from the ultrasonic oscillator to the ultrasonic transducer 2 so that the ultrasonic vibration is generated. The ultrasonic vibration is amplified by the horn 3 and transmitted to the probe 12.
This causes the tip of the probe 12 to vibrate.

FIGS. 2 and 3 show the probe 12 removed from the handpiece 10. FIG. As shown, the probe 12 is formed as a solid rod,
The horn 3 has a screw portion 21 at its base end, which is screwed to the front end portion. In addition, the probe 12 has an annular rotational torque applying part 22 having a surface subjected to some uneven processing such as knurling near the screw part 21 (not shown in FIG. 1). The rotation torque applying unit 22
For example, it is formed of a plastic material, and is detachably and non-rotatably attached to the probe 12. The rotating torque applying unit 22 is large enough to hold the probe 12 with sufficient rotating torque that can be gripped by the fingers of the hand and that can attach and detach the probe 12 to and from the horn 3 when a force is applied in the rotating direction. Is set to
In particular, in the present embodiment, the ratio (A <B) of the diameter A of the probe 12 to the diameter B of the rotational torque applying unit 22, the width H of the rotational torque applying unit 22 (the width that can be turned with a finger), the rotational torque for the probe 12. The attaching position of the applying unit 22 is set so that the ultrasonic treatment can be performed with the rotational torque applying unit 22 attached to the probe 12 (there is no obstacle to oscillating the ultrasonic waves). Preferably, the ratio B / A between the diameter A and the diameter B
Is set to be smaller than 3 (B / A <3). This relationship does not depend on the magnitude of the frequency. If B / A is 3 or more, various obstacles (for example, disturbance of the impedance characteristic value) at the time of transmission of the ultrasonic vibration occur, and the driving becomes impossible or the driving stops during the ultrasonic oscillation. I know it can be

The rotation torque applying section 22 is attached as shown in FIG.
In addition, at a position close to the screw portion 21 shown in FIG. 3, there is an advantage that a torque is easily applied at the time of screw fastening, but it is close to a position of an antinode of ultrasonic vibration. However, for example, when the frequency is 23.5 Hz, the rotation torque applying unit 2
If the width H of 2 is suppressed to about 10 mm or less and the ratio B / A between the diameter A and the diameter B is set to be smaller than 3, the rotating torque applying section 22 can be driven together with the probe 12, and the amplitude in the ultrasonic vibration can be increased. Can be avoided. When the amplitude of the ultrasonic vibration is large, the rotational torque applying unit 22 may be provided at a node that does not vibrate.

The means for attaching and detaching the rotation torque applying section 22 to and from the probe 12 may include screw fastening, elastic fitting, or the like. Of course, the rotational torque applying section 22 may be fixed to the probe 12 by bonding or the like.

As means for non-rotatably attaching the rotational torque applying portion 22 to the probe 12, a concave portion 12 formed on the outer surface of the probe 12 as shown in FIG.
In addition to engaging the convex portion 22a formed on the inner surface of the annular rotational torque applying portion 22 with the inner surface of the rotational torque applying portion 22, the convex portion 12b formed on the outer surface of the probe 12 is engaged with the inner surface of the rotational torque applying portion 22 as shown in FIG. You may make it engage the formed recessed part 22b. Further, as shown in FIGS. 5A to 5C, the cross-sectional shape of the probe 12 is an irregular shape in which both sides of a perfect circle are cut out (see FIG. 5A. ) Or a rectangular shape (see (b) and (c) of FIG. 5), and the rotational torque applying portion 22 may be formed in a shape that can be fitted on the rectangular shape.

The rotational torque applying unit 22 is connected to the probe 1
The rotational torque applying section 22 may be formed integrally with the probe 12 as shown in FIG. Further, as shown in FIG. 7, the probe 12 may be formed in a hollow shape. In this case, the vibrator may have a suction function by being formed in a hollow shape.

As described above, the ultrasonic therapy apparatus 1 according to the present embodiment can hold the probe 12 with respect to the horn 3 when a force is applied in the rotation direction and can be gripped with the fingers of the hand. The rotation torque applying unit 22 set to a size that can apply a large rotation torque to the probe 12
It is provided in. Therefore, the rotation torque applying unit 22
The probe 12 can be easily attached to and detached from the horn 3 simply by gripping with a finger of the hand and applying a rotational force thereto, and a strong fastening state between the two can be ensured. For this reason, a special spanner as in the related art is not required, and the replacement work of the probe 12 can be performed quickly.

The rotational torque applying section 22 does not need to be detached from the probe 12 because the rotational torque applying section 22 does not hinder the ultrasonic treatment even when the rotational torque applying section 22 is attached to the probe 12. No worries about losing 22.

Further, in the configuration of the present embodiment, the probe 12 is not directly fastened to the horn 3 by using a wrench as in the prior art, but directly by hand (more precisely, the rotational torque applying section 22 of the probe 12). ), The probe 12 is attached to and detached from the horn 3, so that the degree of tightening of the two can be easily known with the sense of a finger.

The above configuration can be applied to an ultrasonic trocar. Here, the ultrasonic trocar will be briefly described. First, the ultrasonic trocar is inserted into the guide hole of the outer tube as a hollow member having a guide hole so as to be able to be extracted and inserted into the abdominal wall. It comprises an inner needle having a distal end formed as a sharp insertion portion, and a handpiece removably attached to the outer tube. The inner needle functions as the probe described above, is detachably connected to a horn built in the handpiece, and receives vibration from an ultrasonic vibrator also built in the handpiece and transmits it to the tip. When introducing a medical device into the abdominal cavity using such a trocar, first, a pneumoperitoneal needle is pierced into the abdominal wall by piercing the abdominal wall, gas is injected into the abdominal cavity through the pneumoperitoneal needle, and the inside of the abdominal wall is evacuated. It is expanded to form a cavity as a treatment working space in the abdominal cavity. Then, after removing the insufflation needle from the abdominal cavity, this time, with the inner needle inserted into the guide hole of the trocar mantle tube, with the inner needle while piercing the tip of the inner needle projecting from the tip of the mantle tube into the abdominal wall, The mantle tube is punctured into the abdominal wall. That is, the trocar is introduced into the abdominal cavity (the cavity) while incising the abdominal wall by the ultrasonic vibration energy transmitted to the inner needle. When the trocar is thus introduced into the abdominal cavity, the inner needle is removed from the guide hole of the mantle tube, and the medical device is inserted into the abdominal cavity through the guide hole by inserting the medical device through the guide hole of the mantle tube. Introduce to the target site.

When the above-described configuration (the configuration in which the inner needle is provided with the rotating torque applying portion 22) is applied to such an ultrasonic trocar, for example, the inner needle of the trocar having a diameter of 10 mm or more can be used as a general ultrasonic coagulation / cutting device Since the diameter of the probe is larger than that of the probe used in, a large rotating torque can be transmitted to the inner needle via the rotating torque applying unit 22 without causing torsion, and the inner needle and the horn can be easily attached and detached. Can be performed.

FIG. 8 shows a first modification of the embodiment shown in FIG. In this modification, in order to increase the amplitude of the ultrasonic wave, the rotational torque applying section 22 is extended from the antinode of the ultrasonic vibration to the node at a quarter wavelength ahead. It is a well-known fact that the amplitude of the ultrasonic wave can be increased by tapering the thickness of the probe 12 at the node of the vibration. Therefore, in this modification, the rotational torque applying section 22 is extended from the antinode of the vibration, which is the connection section between the probe 12 and the horn 3, to a node 1/4 wavelength ahead, and the probe 12 The diameter has been greatly reduced.

FIG. 9 shows a second modification of the embodiment shown in FIG. In this modification, the rotation torque applying section 22 is attached to the probe 12 by concave and convex engagement so that the same function as the torque wrench is performed. Specifically, on the inner peripheral surface of the rotating torque applying unit 22,
A ratchet surface 22b having a substantially saw-toothed uneven portion is formed, and a convex portion 12b that can engage with the teeth of the ratchet surface 22b is formed on a part of the outer peripheral surface of the probe 12. When the user rotates the rotational torque applying section 22 in the screwing direction (the direction of the arrow in the drawing) to screw the screw section 21 of the probe 12 into the horn 3, the ratchet surface 22 b of the rotational torque applying section 22 is rotated. When the teeth and the protrusions 12b on the outer peripheral surface of the probe 12 come into contact with each other, torque is generated in the rotation direction, and when tightening with a certain force or more,
The teeth on the ratchet surface 22 b of the rotation torque applying unit 22 are adapted to ride over the convex portion 12 b of the probe 12.
That is, the probe 12 is horn 3 with a fixed tightening force.
A constant force mechanism for screwing the probe 12 into the horn 3 is provided so that the probe 12 cannot be screwed into the horn 3 by a certain amount or more.

Therefore, according to such a configuration, the probe 12 can always be mounted on the horn 3 with an optimum amount of tightening force, and stable ultrasonic vibration can be achieved.
Also, the probe 12 is horn 3
Can be prevented from being removed from the horn 3 due to excessive tightening.

It is preferable that the rotation torque applying section 22 is attached near a portion of the probe 12 located at a node of the ultrasonic vibration. This is because the probe 12 does not vibrate at the node of the ultrasonic vibration, and it is possible to avoid a situation in which the contact surface between the rotational torque applying unit 22 and the probe 12 generates heat or generates abnormal noise due to the ultrasonic vibration. is there.

FIG. 10 shows a third modification of the embodiment shown in FIG. In this modification, the rotational torque applying section 22 is attached to the probe 12 at the position of the node of the ultrasonic vibration. In this case, an annular flange portion 12c is formed at the position of the node of the ultrasonic vibration in the probe 12, and the flange portion 12 is sandwiched between the rotational torque applying portion 22 and the fastening member 70 screwed thereto. As a result, the rotation torque applying section 22 is fixedly attached to the flange section 12c with a predetermined gap left between the probe and the probe 12. In addition, a plurality of concave portions 22c are formed on the outer peripheral surface of the rotation torque applying portion 22 so as to be easily gripped by a finger.

According to such a configuration, even if the probe 12 slightly vibrates at the position of the node of the ultrasonic vibration, the probe 12
It is difficult for heat to be generated between the rotating torque applying unit 22 and the heat, and heat is hardly transmitted to the rotating torque applying unit 22. Further, by adding the configuration of the second modification to the configuration of the third modification, a constant force function similar to that of the torque wrench can be obtained. Further, since the plurality of concave portions 22c are formed on the outer peripheral surface of the rotating torque applying section 22, the rotating torque applying section 22 can be easily rotated. In addition, as shown in FIG.
By providing the finger hook 22d that protrudes largely outward in the radial direction of FIG. 2, even larger rotational torque can be obtained.

FIG. 12 shows another example of a mechanism for attaching and detaching the probe to and from the horn. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown, in this configuration, the probe 1
2 is attached to and detached from the horn 3 on the handpiece 10 side via the rotating ring 30. In the figure, two probes 12A and 12B having different outer diameters (the first probe 12A has 10
The second probe 12B is formed to have a diameter of 5 mm. These probes 1
2A and 12B have a male screw portion 40 at the base end. The male screw portion 40 of each of the probes 12A and 12B is screwed into a female screw portion 41 provided at the tip of the horn 3 of the common handpiece 10. That is, each probe 12
The screw diameters of the male screw portions 40 of A and 12B are set to be the same.

At the base end of each of the probes 12A and 12B, an engaging portion 42 engageable with the engaging hole 30a of the common rotary ring 30 is provided near the male screw portion 40. The engaging portion 42 has a pair of convex portions 42a facing each other, and the convex portions 42a are adapted to be engaged with the concave portions 45 of the engaging holes 30a. In other words, the shape and size of the engaging portion 42 including the convex portion 42
A and 12B are set the same.

On the outer periphery of the horn 3 on the handpiece 10 side, a rotational torque applying portion 51 is provided so as to project therefrom. A male screw 59 is formed on the outer peripheral surface of the rotating torque applying portion 51 so as to be screwable with a female screw hole 30 b formed on the inner surface of the rotating ring 30.

The rotating ring 30 includes the probes 12A, 1
Over a predetermined depth from the end face to which 2B is connected,
The engagement holes 30a that can be engaged with the engagement portions 42 of the probes 12A and 12B are formed. In addition, rotating ring 3
The female screw hole 30b that can be screwed with the male screw 59 of the rotating torque applying part 51 is formed at a predetermined depth from an end surface opposite to the side where the engagement hole 30a is formed. The female screw hole 30b and the engagement hole 30a are
And is terminated by being connected to an annular groove portion 30c to which the rotational torque applying portion 51 is rotatably fit (the width of the groove portion 30c is limited to the rotational torque applying portion 51).
Is set to be larger than the width of

Accordingly, in such a configuration, when the rotating ring 30 is screwed in a predetermined amount in a state where the rotating torque applying portion 51 of the horn 3 is screwed into the female screw hole 30b of the rotating ring 30, the rotating torque is applied. The portion 51 reaches the groove 30 c of the rotating ring 30 and is rotatably loosely fitted in the groove 30. That is, the rotating ring 30 is rotatably attached to the horn 3. In this state, when the rotating ring 30 is rotated by inserting the engaging portion 42 of one of the probes 12A (12B) into the engaging hole 30a of the rotating ring 30 and rotating the rotating ring 30, the probe 12A is integrated with the rotating ring 30. (12B) rotates, and the probe 12A (12
The male screw part 40 of B) is screwed into the female screw part 41 of the horn 3. That is, the probe 12A (12B) is connected to the horn 3.

According to the above configuration, a plurality of probes having different outer diameters can be easily attached to and detached from a common handpiece without using a spanner. In this configuration, it is desirable that the rotating ring 30 is always set on the horn 3 so that the rotating ring 30 is not lost.

FIG. 13 shows a modification of the configuration of FIG. In this modification, a leaf spring 60 is provided in the engagement hole 30a of the rotating ring 30. The leaf spring 60 urges the protrusion 42a of the engagement portion 42 of the probe 12 inserted into the engagement hole 30a toward the handpiece 10. Therefore,
In such a configuration, when the probe 12 is inserted into the rotating ring 30, the probe 12 is pressed toward the handpiece 10 by the leaf spring 60, so that the female screw portion 41 at the tip of the horn 3 and the male screw at the tip of the probe 12 are provided. Screwing with the part 40 becomes easier.

According to the technical contents described above, the following various configurations can be obtained.

1. An ultrasonic surgical device comprising an ultrasonic vibrator, a horn, and a vibration transmission member, wherein the horn and the ultrasonic transmission member are screwed together, wherein the ultrasonic transmission member is screwed to the horn with a finger. An ultrasonic surgical apparatus, comprising:

2. 2. The ultrasonic surgical apparatus according to claim 1, wherein the fastening means is detachable from a probe.

3. 2. The ultrasonic surgical apparatus according to claim 1, wherein the tightening unit is formed separately from the ultrasonic transmission member, and the connection unit is provided with a rotation stopping unit.

4. 2. The ultrasonic surgical apparatus according to claim 1, wherein the fastening unit is formed integrally with an ultrasonic transmission member.

5. 4. The ultrasonic surgical apparatus according to claim 3, wherein the rotation stopping means has a two-plane width.

6. The ultrasonic operation apparatus according to claim 3, wherein the rotation stopping means is configured by a convex portion provided on an ultrasonic transmission member.

7. An ultrasonic surgical device comprising an ultrasonic vibrator, a horn, and an ultrasonic transmission member, wherein the horn and the ultrasonic transmission member are screwed together, wherein the ultrasonic transmission member is for screwing the horn with a finger. An ultrasonic surgical device having an uneven shape.

8. The uneven portion of the ultrasonic transmission member,
8. The ultrasonic operation apparatus according to claim 7, wherein the ultrasonic operation member is larger than an outer diameter dimension of the ultrasonic transmission member.

9. The uneven portion of the ultrasonic transmission member,
8. The ultrasonic surgical apparatus according to claim 7, wherein the length is equal to or less than a quarter wavelength from the antinode of the vibration (the base end side of the probe).

10. In an ultrasonic treatment apparatus including an ultrasonic vibrator, an amplifying horn for amplifying ultrasonic waves generated from the ultrasonic vibrator, and a vibration transmitting member screwed to the amplifying horn, a finger of a hand is used. Rotational torque applying means capable of applying a rotational torque that can be gripped and attachable to and detachable from a vibration transmitting member connected to the amplification horn or the vibration transmission member when a force is applied in the rotational direction. The ultrasonic therapy apparatus according to claim 1, wherein the rotational torque applying means is provided with a constant force mechanism.

11. In an ultrasonic treatment apparatus including an ultrasonic vibrator, an amplifying horn for amplifying ultrasonic waves generated from the ultrasonic vibrator, and a vibration transmitting member screwed to the amplifying horn, a finger of a hand is used. Rotational torque applying means capable of applying a rotational torque that can be gripped and attachable to and detachable from a vibration transmitting member connected to the amplification horn or the vibration transmission member when a force is applied in the rotational direction. An ultrasonic treatment apparatus, which is provided near a position corresponding to a node of ultrasonic vibration of a member, and wherein the rotational torque applying means is provided with a constant force mechanism.

[0049]

As described above, according to the ultrasonic therapy apparatus of the present invention, the attachment / detachment of the vibration transmitting member to / from the horn becomes easy.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an ultrasonic therapy apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of a probe constituting the ultrasonic therapy apparatus of FIG. 1;

3A is a sectional side view of the probe of FIG. 2, and FIG. 3B is a sectional view taken along line XX of FIG. 3A.

FIG. 4A is a side sectional view showing a modified example of the probe,
(B) is a sectional view taken along line YY of (a).

FIG. 5 is a diagram illustrating an example of a cross-sectional shape of a probe.

FIG. 6 is a side sectional view showing a modified example of the probe.

FIG. 7 is a side sectional view showing a modification of the probe.

FIG. 8 is a side view of a probe according to a first modification of the embodiment in FIG. 2;

FIG. 9 is a perspective view of a probe according to a second modification of the embodiment in FIG. 2;

10A is a side view of a probe according to a third modification of the embodiment in FIG. 2, FIG. 10B is a cross-sectional view of the probe in FIG. 10A, and FIG. 10C is a ZZ in FIG. It is sectional drawing which follows a line.

FIG. 11A is a side view of a rotational torque applying unit according to a modification, and FIG. 11B is a front view of the rotational torque applying unit of FIG.

FIG. 12 shows another configuration example of the ultrasonic therapy apparatus, and (a)
Is a perspective view of the treatment device, (b) is a front view of one end surface side of the rotating ring of (a), (c) is a side sectional view of the rotating ring,
(D) is a front view of the other end surface side of the rotating ring.

FIG. 13 is a side sectional view showing a modification of the rotating ring of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ultrasonic therapy device 2 ... Ultrasonic transducer 3 ... Horn 12 ... Probe (vibration transmission member) 22 ... Rotation torque application part

Claims (1)

[Claims] 1. An ultrasonic treatment apparatus comprising: an ultrasonic vibrator; an amplifying horn for amplifying an ultrasonic wave generated from the ultrasonic vibrator; and a vibration transmitting member screwed to the amplifying horn. When the force is applied in the rotation direction, the rotation torque applying portion that can apply the rotation torque to the vibration transmission member so that the vibration transmission member can be attached to and detached from the amplification horn when the force is applied in the rotation direction is provided by the vibration transmission member. An ultrasonic treatment device provided on an outer periphery.