JPH0523347A - Ultrasonic therapeutic apparatus - Google Patents

Abstract

PURPOSE:To obtain an ultrasonic therapeutic apparatus which enable controlling of a sucking operation selectively according to purposes. CONSTITUTION:Ultrasonic vibration is transmitted to a probe 3 by an ultrasonic oscillation means 2 and the tip of the probe 3 is made to abut a biotissue to crush or emulsify the biotissue so that the tissue is sucked away by a suction means 8. In an ultrasonic therapeutic apparatus thus arranged, a control means is provided having a continuous suction mode in which a suction is always performed by the suction means 8 and an interlocking suction mode in which a suction is performed by the suction means 8 interlocking ultrasonic oscillation by the ultrasonic oscillation means 12 and a switching means 16 to switch these modes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic therapeutic apparatus having water supply and suction functions.

[0002]

2. Description of the Related Art There is known an ultrasonic therapeutic apparatus for transmitting ultrasonic vibration to a probe tip and bringing the probe tip into contact with an affected tissue to crush or emulsify the tissue and remove it by suction. .. A typical example thereof is shown in FIG.

In this conventional ultrasonic treatment apparatus, an ultrasonic vibrator 2 such as a bolted Langevin vibrator is built in the handpiece 1, and the ultrasonic vibration generated therein is transmitted to the probe 3. When the probe 3 is brought into contact with the affected tissue, the elastic blood vessel is relatively preserved,
Other tissues are crushed. A perfusion solution such as physiological saline is supplied to the contact portion to moisturize the tissue and suppress heat generation due to crushing. The crushed tissue is used for the probe 3 together with the perfusate.
It is sucked out of the body through the suction hole.

The apparatus body 5 is composed of a water feed pump 10 for feeding the perfusate, an oscillation circuit 6 for driving the ultrasonic transducer 2, an operation panel 14, a control circuit 12 and the like. Further, a suction device 8 for removing the crushed tissue outside the body is provided. The control circuit 12 is also connected to a foot switch 14 for the operator to operate ultrasonic oscillation, water supply, and the like.

In such an ultrasonic treatment apparatus, the length from the grip portion of the handpiece 1 to the tip of the probe 3 is more than 10 cm.
Short type, type with a part of the probe bent,
There are long probes with a length of 20 cm or more, and they are used properly according to the application. For example, a short type is used in liver resection surgery, and a bent type is used in operations performed under a microscope such as brain surgery, which is useful because unnecessary tissue can be removed or excised without damaging blood vessels.

Further, in such an ultrasonic treatment apparatus, the suction operation is always performed at the tip of the probe. And
In reconstructive surgery and brain surgery, the procedure is performed using a handpiece equipped with a short type or bending type probe, but using the probe as a suction tube,
It is important to constantly aspirate blood etc. to secure the operative field.

On the other hand, minimally invasive surgery, which has recently attracted attention,
For example, the above-mentioned ultrasonic therapeutic device has begun to be applied to cholecystectomy using a laparoscope and treatment in obstetrics and gynecology. In this operation, a gas is filled in the abdominal cavity to create a space, and a long type probe is inserted into the abdominal cavity to excise unnecessary tissue, suck and the like.

[0008]

However, when the suction operation is always performed as described above, there is a problem that the gas filled in the abdominal cavity is also sucked at the same time, and the abdominal pressure is lowered. When the intra-abdominal pressure decreases, the operative field cannot be secured and the progress of surgery is hindered. However, a suction operation is required during ultrasonic ablation, and it is also necessary to suction the washing liquid and blood accumulated in the abdominal cavity.

Further, the conventional ultrasonic therapy device has a function of supplying water from the sheath portion at the tip of the handpiece by means of a foot switch, so that the blood is washed away and the bleeding of the tissue is confirmed in order to see the state of the excised portion. be able to. However, if suction is always performed while water is being supplied, the perfusion liquid for cleaning will be sucked by the probe tip, and the amount of water that is actually supplied to the surgical field will be reduced. Alternatively, when the water supply capacity of the water supply pump is weak, there is a problem that a sufficient water supply amount for cleaning the tissue cannot be obtained.

Further, the water supply function of the ultrasonic therapy device is also for the purpose of preventing heat generation due to vibration of the probe. As a preparation before using this device, since the perfusate is stored in the vicinity of the probe, It is necessary to send water to the tip of the handpiece. However, it is inconvenient for the conventional ultrasonic therapy apparatus because the operator performs water supply operation with the foot switch. Furthermore, if suction is stopped when water is supplied, the perfusate may inadvertently jump out from the tip of the handpiece. The present invention has been made in view of the above problems, and an object of the present invention is to provide an ultrasonic treatment apparatus capable of selectively controlling suction operation according to the application.

[0011]

In the ultrasonic treatment apparatus of the present invention, ultrasonic vibration is transmitted to the probe by the ultrasonic wave oscillating means, and the tip of the probe is brought into contact with the living tissue. In an ultrasonic therapy apparatus for crushing or emulsifying biological tissue and suction-removing the tissue by suction means, a continuous suction mode in which suction is always performed by the suction means, and ultrasonic oscillation by the ultrasonic oscillation means are interlocked with each other. It is characterized in that a control means having an interlocking suction mode for performing suction by the suction means and a switching means for switching between these modes are provided. Therefore, by providing the two suction modes in a selectable manner, an appropriate suction operation is selected according to the application.

[0012]

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

As shown in FIG. 1, the handpiece 1 has a built-in ultrasonic vibrator 2 such as a bolted Langevin type vibrator. The ultrasonic vibration generated by the ultrasonic vibrator 2 is generated by the handpiece. It is transmitted to the probe 3 provided at the tip portion of 1. The ultrasonic oscillator 2 is connected via a cable 4 to an oscillating circuit 6 provided in the apparatus main body 5. In this embodiment, a short type probe is attached as the probe 3.

A suction hole (not shown) is formed inside the probe 3, and the suction hole is connected to a suction device 8 via a suction passage 7 composed of a suction tube or the like. In addition,
A water supply hole (not shown) for supplying the perfusate is formed on the outer periphery of the tube 3, and the water supply hole is connected to a water supply pump 10 provided in the apparatus body 5 via a water supply passage 9 composed of a water supply tube or the like. There is. Therefore, a perfusion liquid such as physiological saline is supplied to the treatment portion by the water supply pump 10 through the water supply passage 9 and the water supply hole, and the supplied perfusion liquid is supplied to the suction hole of the probe 3 and the suction passage 7 by the suction device 8. It can be removed by suction outside the body.

Further, the apparatus body 5 includes a pinch valve 11
The pinch valve 11 has a pinch member 11 a for opening and closing the suction passage 7. Therefore, the suction operation of the suction device 8 can be controlled by opening and closing the suction passage 7 with the pinch member 11a. Then, in the apparatus body 5, a control circuit 12 connected to the oscillation circuit 6, the water pump 10 and the pinch valve 11, and the control circuit 1
2 is provided with an operation panel 14 for sending a signal. Further, a foot switch 14 for the operator to control ultrasonic oscillation, water feeding, etc. is connected to the control circuit 12. The operation panel 14 is provided with a mode changeover switch 16 having switches 16a and 16b for setting two kinds of suction modes. Next, the operation of the ultrasonic therapeutic apparatus according to this embodiment will be described.

First, high frequency power is supplied from the oscillation circuit 6 to the ultrasonic transducer 2 of the handpiece 1, and the ultrasonic vibration generated by the ultrasonic transducer 2 is transmitted to the tip of the probe 3. Then, the tissue excised at the tip of the probe 3 that vibrates ultrasonically is sucked into the suction device 8 through the suction hole of the probe 3 and the suction passage 7. This suction operation is controlled by opening and closing the suction passage 7 by the pinch member 11a of the pinch valve 11 provided in the apparatus body 5. The control of this suction operation is executed according to a predetermined suction mode, and this suction mode is selected by the suction mode changeover switch 16 provided on the operation panel 14.

In the control circuit 12, a continuous suction mode operated by the switch 16a and an interlocking suction mode operated by the switch 16b are set. First, when the continuous suction mode is selected, the pinch valve 12 is always open. Therefore, as shown in FIG. 2A, the suction operation is continuously performed regardless of whether the ultrasonic oscillation is on or off.

Next, when the interlocking suction mode is selected, the pinch valve 12 is normally closed. Then, as shown in FIG. 2B, when the ultrasonic oscillation is turned on by the foot switch, the pinch valve 11 is interlocked with the ultrasonic oscillation.
Opens and suction is started. Also, foot switch 1
The pinch valve 11 opens even when the suction pedal (not shown) provided on the No. 4 is depressed, so that suction can be performed only when the operator intends. In the first embodiment, the continuous mode and the interlocking mode of the suction operation are provided, so that the ultrasonic therapy apparatus can be used according to various types of surgery. 3 and 4 show a second embodiment of the present invention.

The second embodiment differs from the first embodiment in that a leak valve 20 is provided in the middle of the suction passage 7. The other structure is the same as that of the first embodiment, and the description thereof is omitted. The operation of the second embodiment will be described with reference to FIG.

First, when the continuous suction mode is selected by the mode changeover switch 16, the pinch valve 11 and the leak valve 20 operate as shown in the time chart of FIG. 4 (a). That is, when the oscillation of the ultrasonic transducer 2 is turned off, the pinch valve 11 is closed for a moment and the leak valve 20 is opened in the meantime. As a result, suction is stopped for a moment, and the suction passage 7 between the tip of the probe 3 and the pinch valve 11 is opened to the atmosphere via the leak valve 20. This makes it possible to release the tissue adsorbed at the tip of the probe 3 when the cutting of the tissue by the probe 3 is stopped.

On the other hand, when the interlocking suction mode is selected by the mode changeover switch 16, the pinch valve 11 and the leak valve 20 operate as shown in FIG. 4 (b). That is, the suction operation is linked to the ultrasonic oscillation, and moreover, like the continuous mode, the suction of the tissue can be released by opening the leak valve 20 for a moment when the ultrasonic oscillation is stopped. In the second embodiment, in addition to the operation of the first embodiment, the tissue adsorption can be released when the ultrasonic oscillation is stopped. 5 to 7 show a third embodiment of the present invention. In the third embodiment, the same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 5, the operation panel 14 is provided with a suction mode selection switch 16 and a water supply operation switch 22, and the water supply pump 10a receives a signal from the control circuit 12 and operates in a normal rotation mode. And is configured to operate in high speed rotation mode. Further, the foot switch 14a includes a water feed pedal 15a, a suction pedal 15b, and an ultrasonic wave oscillating pedal 15c. Above water pump 1
The operation of 0a will be described with reference to FIG.

The water supply pump 10a is constructed so that the amount of water supply can be changed by a signal from the control circuit 12. That is, the drive mode of the water supply pump 10a is a normal rotation mode in which a small amount of water is supplied to cool the heat generated by the vibration of the probe 3, and a large amount of perfusate is ejected from the vicinity of the probe 3 to wash the tissue of the treatment portion. The high-speed rotation mode for setting is set. In the normal rotation mode, for example, a water supply amount of 0 to 200 ml / min can be obtained by the setting of the operator, and in the high speed rotation mode, for example, 400 m
A constant water supply of 1 / min is obtained.

As shown in FIG. 6, the foot switch 10a
When the ultrasonic oscillating pedal 15c is turned on, the probe 3 vibrates ultrasonically and the perfusion water for cooling the probe of the set amount of water is supplied to the probe 3. For example, water is sent with the set amount 1 and the set amount 2 of water. Further, when the water supply pedal 15a is turned on, the water supply pump 10a rotates at high speed to perform high-speed cleaning with a fixed fixed amount of water, and sufficient water is supplied to clean the treatment section.

Next, the function of the water supply operation switch 22 will be described with reference to FIG. The water pump 10a is
As described above, the foot switch 14a operates when the ultrasonic oscillation pedal 15c and the water supply pedal 15a are turned on. In other cases, the water supply operation switch 22 of the operation panel 14 is operated.
Is configured to operate by.

By the water supply operation switch 22, it is possible for a person other than the operator to prepare the apparatus before the operation or supply the perfusate to the vicinity of the probe during the handpiece exchange during the operation. Here, when the suction mode is the continuous suction mode shown in FIG. 7A during the water supply for preparation, since the suction is performed at the tip of the probe, the perfusate that has been sent is sucked and collected, and the tip of the probe is collected. The perfusate does not inadvertently squirt from the. However, when water is supplied by the water supply pedal 15a, it is not preferable that the perfusate is sucked from the probe as described above, because the operator has the purpose of operating and cleaning the operation site. Therefore, as shown in FIG. 7 (a), the pinch valve 11 is closed in conjunction with the water supply pedal 15a to stop the suction so that all the perfusate to be supplied is supplied to the surgical site.

On the other hand, when the suction mode is the interlocking suction mode shown in FIG. 7 (b), since the suction at the probe tip is normally stopped, the perfusate is supplied during the water supply for preparation by the water supply operation switch 22. It will gush out. However, it is convenient that the suction is stopped when the water is fed by the water pedal 15a. Therefore, in the case of the interlocking suction mode, the pinch valve 11 is opened only when water is supplied by the water supply operation switch 22, suction is performed, and the perfusion solution is collected at the tip of the probe 3.

As described above, in the third embodiment, the water supply pump can be effectively used, and the operation of the pinch valve for controlling suction can be combined to perform the water supply operation suitable for the purpose of use.

[0029]

As described above, the ultrasonic therapeutic apparatus of the present invention can be used in various types of surgery. For example,
The conventional apparatus can be used even in abdominal surgery where many inconveniences are caused, and a safe operation utilizing the characteristics of the ultrasonic treatment apparatus can be performed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an ultrasonic therapeutic apparatus according to a first embodiment of the present invention.

FIG. 2 is a time chart showing the operation of the ultrasonic therapeutic apparatus according to the first embodiment.

FIG. 3 is a configuration diagram of an ultrasonic therapeutic apparatus according to a second embodiment of the present invention.

FIG. 4 is a time chart showing the operation of the ultrasonic therapeutic apparatus according to the second embodiment.

FIG. 5 is a configuration diagram of an ultrasonic therapeutic apparatus according to a third embodiment of the present invention.

FIG. 6 is a time chart showing the operation of the ultrasonic therapeutic apparatus according to the third embodiment.

FIG. 7 is a time chart showing the operation of the ultrasonic therapeutic apparatus according to the third embodiment.

FIG. 8 is a configuration diagram of a conventional ultrasonic therapy device.

[Explanation of symbols]

2 ... Ultrasonic vibrator (ultrasonic oscillating means), 3 ... Probe,
8 ... Suction device (suction means), 12 ... Control circuit (control means), 16 ... Mode changeover switch (switching means).

Claims (1)

Claim: What is claimed is: 1. Ultrasonic vibration is transmitted to a probe by ultrasonic oscillating means, and the tip of this probe is brought into contact with the biological tissue, thereby crushing or emulsifying the biological tissue and suctioning. In the ultrasonic treatment apparatus for sucking and removing the tissue by means, a continuous suction mode in which suction is always performed by the suction means, and a linked suction mode in which suction is performed by the suction means in conjunction with ultrasonic oscillation by the ultrasonic oscillation means An ultrasonic treatment apparatus comprising: a control unit having a switch and a switching unit for switching between these modes.