JP3081676B2 - Ultrasound therapy equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art There is known an ultrasonic therapy apparatus which transmits ultrasonic vibrations to a probe tip and crushes or emulsifies and aspirates and removes the tissue by bringing the probe tip into contact with an affected tissue. . FIG. 8 shows a typical example.

In this conventional ultrasonic treatment apparatus, an ultrasonic oscillator 2 such as a bolted Langevin oscillator is incorporated in a handpiece 1, and the ultrasonic vibration generated there is transmitted to a probe 3. When the probe 3 is brought into contact with the affected tissue, the elastic blood vessel is relatively preserved,
Other tissues are disrupted. A perfusion solution such as a physiological saline solution is supplied to the contact portion to moisten the tissue and suppress heat generation due to crushing. The crushed tissue was mixed with the perfusion solution using Probe 3.
Is sucked out of the body through the suction hole.

[0004] The apparatus main body 5 includes a water supply pump 10 for supplying perfusate, an oscillation circuit 6 for driving the ultrasonic vibrator 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 connected to a foot switch 14 for an operator to operate ultrasonic oscillation, water supply, and the like.

In such an ultrasonic therapy apparatus, the length from the grip of the handpiece 1 to the tip of the probe 3 is more than ten cm.
Short type, part of probe is bent,
There is a long type probe with a length of 20 cm or more, and each type is properly used depending on the purpose. For example, a short type is used in liver resection surgery, and a bent type is used in surgery performed under a microscope such as brain surgery, which is useful because unnecessary tissue can be removed or removed without damaging blood vessels.

[0006] In such an ultrasonic therapy apparatus, a suction operation is always performed at the tip of the probe. And
In rehabilitation surgery and brain surgery, treatment is performed using a handpiece equipped with a short type or bending type probe, but using a probe as a suction tube,
It is important to constantly draw blood or the like to secure a surgical field.

On the other hand, minimally invasive surgery, which has recently attracted attention,
For example, the above-described ultrasonic therapy apparatus has begun to be applied to cholecystectomy using an abdominal endoscope or treatment in obstetrics and gynecology. In this operation, gas is filled into the abdominal cavity to create a space, and a long-type probe is inserted into the abdominal cavity to remove unnecessary tissue, aspirate the tissue, and the like.

[0008]

However, if the suction operation is always performed as described above, there is a problem that the gas filled in the abdominal cavity is simultaneously aspirated, and the pressure in the abdominal cavity is reduced. When the pressure in the abdominal cavity decreases, the operative field cannot be secured and the progress of the operation is hindered. However, a suction operation is necessary at the time of ultrasonic ablation, and it is also necessary to suction a washing solution or blood that accumulates in the abdominal cavity.

Further, the conventional ultrasonic treatment apparatus has a function of supplying water from a sheath portion at the tip of a handpiece by a foot switch, and flushes blood to check the state of a resected portion, and confirms bleeding of tissue. be able to. However, if suction is constantly performed while water is being supplied, the irrigation solution for cleaning is sucked at the tip of the probe, and the amount of water actually supplied to the operative field is reduced. Alternatively, if the water supply capacity of the water supply pump is weak, there is a problem that a sufficient amount of water cannot be obtained to wash the tissue.

The water supply function of the ultrasonic therapy apparatus also has the purpose of preventing heat generation due to vibration of the probe. In order to store the perfusate in the vicinity of the probe as a preparation before using the apparatus, the water is supplied from the apparatus side. It is necessary to send water to the tip of the handpiece. However, the conventional ultrasonic treatment apparatus is inconvenient because the operator performs a water supply operation using a foot switch. Further, if suction is stopped when water is supplied, the perfusate may inadvertently jump out of 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 a suction operation according to a use.

[0011]

The ultrasonic therapy apparatus according to the present invention transmits ultrasonic vibrations to a probe by ultrasonic oscillation means, and abuts the tip of the probe on a living tissue. In an ultrasonic treatment apparatus for crushing or emulsifying a living tissue and aspirating and removing the tissue by a suction means, a continuous suction mode in which suction is always performed by the suction means, and the ultrasonic oscillation performed by the ultrasonic oscillation means, It is characterized in that control means having an interlocking suction mode for performing suction by the suction means and switching means for switching between these modes are provided. Therefore, by providing the two suction modes so as to be selectable, 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, an ultrasonic vibrator 2 such as a bolted Langevin type vibrator is built in a handpiece 1, and the ultrasonic vibration generated by the ultrasonic vibrator 2 is hand-piece. The light is transmitted to the probe 3 provided at the distal end of the probe 1. The ultrasonic transducer 2 is connected via a cable 4 to an oscillation circuit 6 provided in the apparatus main body 5. In this embodiment, a short type probe is mounted as the probe 3.

A suction hole (not shown) is formed inside the probe 3, and this suction hole is connected to a suction device 8 via a suction path 7 composed of a suction tube or the like. In addition, professional
A water supply hole (not shown) for perfusate water supply 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 main body 5 through a water supply passage 9 composed of a water supply tube or the like. I have. Therefore, a perfusion solution such as a physiological saline solution is supplied to the treatment section through the water supply path 9 and the water supply hole by the water supply pump 10, and the supplied perfusion liquid passes through the suction hole and the suction path 7 of the probe 3 by the suction device 8. Can be removed by suction through the body.

Further, the apparatus body 5 has 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 by the pinch member 11a. The apparatus main body 5 includes a control circuit 12 connected to the oscillation circuit 6, the water pump 10, and the pinch valve 11.
2 is provided with an operation panel 14 for sending a signal. Further, a foot switch 14 for an operator to control ultrasonic oscillation, water supply, and the like 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 therapy apparatus according to the present embodiment will be described.

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

The control circuit 12 has a continuous suction mode operated by a switch 16a and an interlocking suction mode operated by a switch 16b. 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 irrespective of ON / OFF of the ultrasonic oscillation.

Next, when the interlocking suction mode is selected, the pinch valve 12 is normally closed. When the ultrasonic oscillation is turned on by the foot switch as shown in FIG.
Is opened and suction is started. Also, foot switch 1
The pinch valve 11 is also opened when a suction pedal (not shown) provided in the step 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 kinds of operations. 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 suction path 7. The other configuration is the same as that of the first embodiment, and the description 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 change switch 16, the pinch valve 11 and the leak valve 20 operate as shown in a time chart of FIG. 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 during that time. As a result, the suction is stopped for a moment, and the suction path 7 from the tip of the probe 3 to the pinch valve 11 is opened to the atmosphere via the leak valve 20. Thus, when the excision of the tissue by the probe 3 is stopped, the tissue adsorbed on the tip of the probe 3 can be released.

On the other hand, when the interlocking suction mode is selected by the mode change switch 16, the pinch valve 11 and the leak valve 20 operate as shown in FIG. That is, the suction operation is interlocked with the ultrasonic oscillation, and the suction of the tissue can be released by opening the leak valve 20 momentarily when the ultrasonic oscillation is stopped, as in the continuous mode. In the second embodiment, in addition to the operation of the first embodiment, the suction of the tissue 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 denoted by the same reference numerals, and 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. The water supply pump 10a operates in a normal rotation mode in response to a signal from the control circuit 12. It is configured to operate in a high-speed rotation mode. Further, the foot switch 14a includes a water feed pedal 15a, a suction pedal 15b, and an ultrasonic oscillation pedal 15c. Water pump 1
The operation at 0a will be described with reference to FIG.

The water supply pump 10a is configured so that the water supply amount can be changed by a signal from the control circuit 12. That is, the drive mode of the water supply pump 10a includes 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 clean tissue of the treatment section High-speed rotation mode is set. In the normal rotation mode, a water supply amount of, for example, 0 to 200 ml / min is obtained by the setting of the operator.
A constant flow rate of 1 / min is obtained.

As shown in FIG. 6, the foot switch 10a
When the ultrasonic oscillation pedal 15c is turned on, the probe 3 ultrasonically vibrates, and the set amount of irrigation water for cooling the probe is supplied to the probe 3. For example, water is supplied with the water amount of the set value 1 and the set value 2. When the water supply pedal 15a is turned on, the water supply pump 10a rotates at a high speed, performs high-speed cleaning with a fixed fixed amount of water, and supplies sufficient water 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
As described above, it operates when the ultrasonic oscillation pedal 15c and the water supply pedal 15a of the foot switch 14a are turned on, and in other cases, the water supply operation switch 22 of the operation panel 14
It is configured to operate by.

With the water supply operation switch 22, a person other than the surgeon can perform the preparation of the apparatus before the operation or the supply of 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 at the time of water supply for preparation, since suction is performed at the tip of the probe, the perfusate fed is suctioned and collected, and the tip of the probe is collected. The perfusate is not inadvertently ejected from the container. 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 operation is performed by the operator to clean the operation part. Therefore, as shown in FIG. 7A, the pinch valve 11 is closed to stop the suction in conjunction with the water feed pedal 15a, so that all the perfusate to be fed is supplied to the operative site.

On the other hand, when the suction mode is the interlocking suction mode shown in FIG. 7B, the suction at the tip of the probe is normally stopped. It will erupt. However, it is convenient if the suction is stopped when water is supplied by the water supply 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, and suction is performed to collect the perfusate 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 the suction can be combined to perform the water supply operation suited to the purpose of use.

[0029]

As described above, the ultrasonic therapy apparatus of the present invention can be used for various operations. For example,
The device can be used in abdominal cavity surgery, which had many disadvantages with the conventional device, and a safe operation utilizing the features of the ultrasonic therapy device can be performed.

[Brief description of the drawings]

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

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

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

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

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

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

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

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

[Explanation of symbols]

2 ... Ultrasonic vibrator (ultrasonic oscillation means), 3 ... Probe,
8: suction device (suction means), 12: control circuit (control means), 16: mode changeover switch (switching means).

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) A61B 17/22 330 A61B 18/00

Claims (1)

(57) [Claims] 1. Ultrasonic oscillation is transmitted to a probe by an ultrasonic oscillation means, and the tip of the probe is brought into contact with a living tissue to crush or emulsify the living tissue, and the suction means sucks the tissue. In the ultrasonic treatment apparatus to be removed, a control means having a continuous suction mode in which suction is always performed by the suction means, and an interlocking suction mode in which suction is performed by the suction means in conjunction with ultrasonic oscillation by the ultrasonic oscillation means, And a switching means for switching between these modes.