JPH0592007A - Ultrasonic medical treatment device - Google Patents

Abstract

PURPOSE:To provide a safe ultrasonic medical treatment device for supplying a cooling liquid to an endoscope in the course of oscillation of an ultrasonic vibrator and preventing a fact that the endoscope itself is heated by feeding a liquid. CONSTITUTION:In the ultrasonic medical treatment device provided with an ultrasonic vibrator 11, a treatment probe 13 for transferring ultrasonic vibration of this ultrasonic vibrator 11 to the part to be treated, and an endoscope 16 having a treatment channel 20 for inserting this probe 13 from the rear end and leading the tip of its probe 13 to the part to be treated and a feed water base 21 leading to the treatment channel 20, this device is provided with a switching mechanism for turning on/off feed water to the endoscope 16 by synchronizing with ultrasonic oscillation of the ultrasonic vibrator part 11. In such a way, at the time of oscillation of the ultrasonic vibrator part 11, cooling water of the necessary quantity can be fed into the endoscope 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, while observing a portion to be treated under observation with an endoscope, performs a treatment such as excision or destruction of living tissue or calculi by ultrasonic vibration, and excision caused by the treatment. The present invention relates to an ultrasonic treatment device for sucking and removing pieces, crushed pieces, and the like.

[0002]

2. Description of the Related Art Conventionally, while observing an area to be treated under observation with an endoscope, ultrasonic vibration is used to excise or destroy living tissue or a calculus, etc. An ultrasonic treatment device for suctioning / removing shavings is known from Japanese Patent Laid-Open No. 63-197444. In this case, in order to suppress heat generation of the ultrasonic transducer and the probe in use, the cooling liquid is poured from the water supply port of the handpiece and guided to the tip of the probe. Also,
At the same time, the perfusate for securing the field of view by the endoscope is poured from the water supply port of the endoscope and guided to the tip of the endoscope through the lumen of the endoscope. The cooling liquid of the probe was not fed, but only the perfusion liquid for securing the field of view of the endoscope was poured from the water feeding port of the endoscope. The supply of the perfusate and the adjustment of its flow rate to secure the field of view of the endoscope were performed independently of the oscillation of the ultrasonic transducer.

[0003]

In this conventional ultrasonic therapeutic apparatus, since the oscillation of the ultrasonic transducer and the water supply to the endoscope are performed separately, the water supply to the endoscope is not performed. However, it was possible to oscillate the ultrasonic vibrator. However, if the ultrasonic transducer is oscillated without the water supply of the endoscope, the sheath itself of the endoscope becomes hot due to the heat generation of the probe in the treatment channel of the endoscope, and it is in contact with this sheath. The living tissue of a patient may be damaged by heat.

Conventionally, in order to prevent such a situation from occurring, when using this ultrasonic therapeutic apparatus, the perfusate is always supplied to the endoscope, or the ultrasonic vibrator is oscillated. It was necessary for the user to always be careful enough to use water so that water was always sent to the endoscope.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to supply a cooling liquid to an endoscope during oscillation of an ultrasonic transducer to provide a sheath device for an endoscope or the like. It is an object to provide a safe ultrasonic treatment device that prevents itself from becoming hot.

[0006]

According to the present invention, there is provided an ultrasonic transducer, a probe for transmitting ultrasonic vibration of the ultrasonic transducer to a portion to be treated, the probe inserted from the rear end and the tip of the probe. In an ultrasonic therapy device having a treatment channel for guiding to a treated portion and, for example, a sheath device having a liquid feed port communicating with the treatment channel, the sheath device is synchronized with the ultrasonic oscillation of the ultrasonic transducer. A switching mechanism for turning on / off the water supply to and / or adjusting the liquid supply amount is provided. A necessary amount of cooling liquid can be sent to the endoscope when the ultrasonic oscillator oscillates.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a general configuration of an ultrasonic therapy device. That is, reference numeral 1 denotes an external device, and the main body of the device includes an ultrasonic drive signal generator a, a high-frequency current generating power source b, a suction pump c, a suction bottle d, a water pump e, a first water tank f, and the like. It has been incorporated. A power cord 2, a first water supply tube 3, and a suction tube 4 are led out from the ultrasonic drive signal generator a. The power cord 2, the first water supply tube 3, and the suction tube 4 are
It is connected to the handpiece 5 of the ultrasonic probe. The perfusate stored in the first water supply tank f by the water supply pump e is sent to the first water supply tube 3. Further, the suction pump c transmits negative pressure to the suction tube 4 and sucks the contents into the suction bottle d through the suction tube 4. A suction valve 8 is inserted in the middle of the suction passage 7 leading to the suction tube 4. In addition, the external device 1 is turned on to drive this device.
A foot switch 10 for switching on / off is connected.

The handpiece 5 is provided with a vibrator portion 11 for generating ultrasonic vibration and a first water supply passage 12.
The power cord 2 is connected to the vibrator unit 11,
As a result, the ultrasonic wave drive signal from the ultrasonic wave drive signal generator a is transmitted to the transducer unit 11. First
The first water supply tube 3 is connected to the water supply path 12 of the above. A suction passage 7 (not shown in FIG. 2) is provided inside the vibrator portion 11, and the suction tube 4 is connected to the suction passage 7. A hollow treatment probe 13 that transmits the ultrasonic vibration generated in the vibrator portion 11 to the treatment site and communicates with the suction path 7 is connected to the front surface of the vibrator portion 11, and the handpiece is also connected. An adapter 15 is connected to the front surface of 5 so as to cover the probe base 14.

On the other hand, the endoscope 16 configured as a sheath device includes a scope 17, a sheath 18, and a guide 19.
The scope 17 has a treatment channel 20
Is provided. Further, the sheath 18 is provided with a water supply mouthpiece 21 as a liquid supply opening and a water supply cock 22. The sheath 18 covers the scope insertion portion 23 so that the scope 1
7 is detachably attached to the scope insertion part 2
By the space 24 formed between 3 and the sheath 18,
The second water supply channel 25 is formed. The second water supply passage 25 communicates with the water supply mouthpiece 21 provided on the sheath 18. A second water supply tube 27 connected to the second water supply tank g is connected to the water supply cap 21, and the water supply cock 22 is adjusted to adjust the second water supply tank g to the second water supply passage 25. It is possible to control the amount of perfusate that flows into the interior. The second water tank g is suspended on the stand 6.

The adapter 15 is engaged with a guide 19 attached to the rear end of the scope 17 so as to be movable back and forth, and the probe base 14 is inserted into the treatment channel 20 via the guide 19. ing. Then, as the adapter 15 moves back and forth with respect to the guide 19, the tip 28 of the probe 13 projects from the sheath tip 29. Further, the first water supply channel 12 provided in the handpiece 5 communicates with the space 30 formed between the probe base 14 and the adapter 15, and further the space 31 between the probe base 14 and the treatment channel 20.
Is in communication with. The amount of the perfusate flowing into the space 31 of the probe base 14 and the treatment channel 20 from the first water supply tank f is adjusted by the operation amount of the water supply pump e of the external device 1.

The treatment probe 13 is formed in the shape of a hollow pipe, and the internal space of the treatment probe 13 communicates with the suction passage 17 of the vibrator portion 11, and the external device 1
The negative pressure generated by the suction pump c is applied to the distal end 28 of the treatment probe 13 through the suction tube 4, the suction passage 17, and the space inside the treatment probe 13.

Further, the high frequency current generated by the high frequency current generating power source b is made to flow through the power cord 2 to the treatment probe 13. Therefore, the endoscope 16
High-frequency treatment can be performed under direct sight. On the other hand, the treatment channel 20, the adapter 15, and the handpiece 5 of the scope 17 are each made of an insulating member.

In the general structure as described above, the normal water supply system and suction system are as shown in FIG. That is, the water supply system to the endoscope 16 and the handpiece 5
There was an independent water supply system. Then, the operation of supplying the perfusate to secure the visual field of the endoscope 16 is turned ON / O.
The FF and its flow rate are adjusted only by the water feeding cock 22.

FIG. 1 shows the configuration of each water supply system and suction system in the configuration of the first embodiment of the present invention compared with this. That is, a water supply tube 35 is provided which forms a third water supply path 33 different from the second water supply path 25 as a water supply path for the perfusate flowing from the second water supply tank g to the endoscope 16. The second water supply passage 25 is connected to the endoscope 16 from the second water supply tank g through the water supply cock 22 of the endoscope 16 as in the conventional case. On the other hand, the third water supply passage 33 is connected to the endoscope 16 via the foot switch 10 connected to the control circuit of the external device 1. The foot switch 10 turns ON / OFF the drive of the external device 1 and simultaneously turns ON / OFF the flow of the perfusate in the third water supply channel 33.
It has a special configuration that allows F. That is, as will be described later, the foot switch 10 turns on / off the water supply to the endoscope 16 in synchronization with the ultrasonic oscillation of the ultrasonic transducer 11.
It has a built-in switching mechanism.

That is, in the foot switch 10, as shown in FIG. 3, a moving body 52 is provided in a frame 51 so as to be movable back and forth, and the moving body 52 is attached in a direction to be pushed forward by a spring 53. It is energized. Further, holes 55, 55, 5 for penetrating an intermediate part of the water supply tube 35 provided in parallel with the water supply tube 27 in the frame 51 and the moving body 52.
6 is formed. An operation button 57 is provided so as to project from the outer front end of the moving body 52, and a protrusion 59 for operating a switch 58 for switching ON / OFF of driving of the external device 1 is provided at the inner end of the moving body 52. ing.

Then, as shown in FIG. 3A, in a standby state in which the moving body 52 is moved forward by the urging force of the spring 53, an intermediate portion of the water supply tube 35 has holes 55, 55 in the frame 51. The mobile body 5
The intermediate part of the intermediate part inserted into the second hole 56 is pushed forward and crushed, and the water supply is blocked.
The switch 58 is in the non-operating state in the state where the water supply is cut off.

As shown in FIG. 3B, when the moving body 52 is pushed in, the pushing of the water feeding tube 35 by the moving body 52 is released, the water feeding state becomes possible, and the switch 58 moves. It is pushed and operated by the protrusion 59 of the body 52, and is turned on. As a result, ON / OFF of driving in the external device 1 and ON / OFF of water supply
Are synchronized.

As shown in FIG. 3C, when the moving body 52 is pushed in about half, the projection 59 of the moving body 52 does not contact the switch 58, and the water supply tube 35
Do not pinch. Therefore, water is supplied. That is, the external device 1 is driven and the water is turned on and off.
It is also possible to set the drive of the external device 1 to OFF and the water supply to ON by locating it in the middle position of switching. Further, although the third water supply passage 33 is connected to the second water supply tank g, a third water supply tank (not shown) is newly provided, and the third water supply passage is provided in the third water supply tank. 33 may be connected.

FIG. 5 shows the construction of the water supply system and the suction system in the second embodiment of the present invention. This is because the supply of the perfusate from the second water supply tank g to the endoscope 16 is performed only by the third water supply passage 33 including the water supply tube 35. That is, the second water supply channel 25 is not used. The third water supply passage 33 is connected to the endoscope 16 via the foot switch 10 connected to the external device 1. Although the specific structure is omitted, the foot switch 10 turns ON / OFF the drive of the external device 1, and when the drive of the external device 1 is turned ON, maximizes the water supply / irrigation flow rate in the third water supply passage 33, Also, the drive of the external device 1 is turned off.
When it is set, the water supply perfusion flow rate in the third water supply channel 33 can be adjusted to a predetermined value.

FIG. 6 shows the construction of the water supply system and the suction system in the third embodiment of the present invention. This is provided in the external device 1 with a control valve 61 for controlling the water supply amount of the third water supply passage 33. Furthermore, this adjustment valve 61
Of the foot switch 10 and the adjustment valve 61 so that the adjustment of the foot switch 10 is interlocked with the ON / OFF operation of the foot switch 10.
Is electrically connected, the control valve 61 is closed when the foot switch 10 is turned off, and the foot switch 10 is turned on.
When it becomes N, the amount of water supplied through the third water supply passage 33 is set to a predetermined flow rate.

In this embodiment as well, as in the second embodiment described above, the endoscope 1 is operated from the second water tank g.
6, the second water passage 25 is omitted and the third water passage 3
Water may be sent only by 3. The adjusting valve 61 is the endoscope 16
It may be installed near the water supply tank g, or may be installed near the water supply tank g.

FIG. 7 shows a modified example of the endoscope 16 as a sheath device as a fourth embodiment of the present invention. That is, the endoscope 16 includes a sheath 72, a working element 73, and a scope 74, and a scope 74 and a handpiece 77 are connected and fixed to a first guide pipe 75 and a slider 76 provided on the working element 73, respectively. At the same time, the adapter 79 of the handpiece 77 and the probe 80 are attached to the second guide pipe 78.
Is slidably assembled. The slider 76 to which the handpiece 77 is fixed is slidable back and forth with the slider shaft 81 as a guide.

The working element 73 is the scope 7.
4, handpiece 77, probe 80 and adapter 7
It is detachably connected and fixed to the rear end of the sheath 72 integrally with 9. Further, the sheath 72 is provided with a water supply mouthpiece 83 for attaching the water supply tube 82. Water transmission base 8
3 is provided with a cock 84. The perfusate flowing from the water supply mouthpiece 83 flows through the space 85 between the inner cavity of the sheath 72 and the first guide pipe 75 and the second guide pipe 78. Then, the perfusion solution is supplied through the water supply tube 82 connected to the water supply mouthpiece 83, and the supply of the perfusion solution through the water supply tube 82 is controlled by the foot switch as described above.

FIG. 8 shows an endoscope 16 as a fifth embodiment of the present invention. The endoscope 16 includes a scope 92 and a sheath 93. The scope 92 has a treatment channel 94, and an adapter 96 fixed to a handpiece 95 is connected and fixed to the treatment channel 94 of the scope 92. The probe 99 is inserted so that the probe tip 98 projects from the sheath tip 97, and the scope 92 is detachably connected and fixed to the rear end of the sheath 93. In addition, the sheath 93 has a water supply cap 10
0 is provided, and the perfusate that has flowed in from the water supply cap 100 is a space 101 between the lumen of the sheath 93 and the scope 92.
Flowing through. The water supply tube 100 is connected to the water supply tube 82 for supplying the perfusate whose supply operation is controlled by the foot switch as described above.

FIG. 9 shows a sixth embodiment of the present invention. That is, this is an example of a sheath device that does not incorporate a scope, which has a guide pipe 112 having a water supply mouthpiece 111, and a probe 115 so that the probe tip 113 projects from the guide pipe tip 114. And the adapter 116 is slidably inserted back and forth. The perfusate flowing from the water supply nozzle 111 flows in the space 117 between the inner cavity of the guide pipe 112 and the probe 115.

The present invention is not limited to the above embodiment, and various modifications can be considered within the scope of the invention.

[0027]

As described above, according to the present invention, even if the ultrasonic oscillator is oscillated while water is not being supplied during use, the ultrasonic treatment is performed simultaneously with the oscillation of the ultrasonic oscillator. Since the perfusate is allowed to flow to the sheath device through the water supply passage installed in the adjusting mechanism provided in the device, it is possible to prevent the sheath from abnormally generating heat, which may result in burns of the patient due to heat generation of the sheath. Is gone.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic circuit configuration of a water supply system and a suction system in a first embodiment of the present invention.

FIG. 2 is an explanatory diagram schematically showing the configuration of a general ultrasonic treatment apparatus.

3A to 3C are cross-sectional views showing respective operating states of the foot switch according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a schematic circuit configuration of a water supply system and a suction system in a general ultrasonic therapy apparatus.

FIG. 5 is an explanatory diagram showing a schematic circuit configuration of a water supply system and a suction system according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a schematic circuit configuration of a water supply system and a suction system according to a third embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a schematic configuration of an endoscope according to a fourth embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a schematic configuration of an endoscope according to a fifth embodiment of the present invention.

FIG. 9 is an explanatory diagram showing a schematic configuration of a sixth embodiment of the present invention.

[Explanation of Codes] g ... second water supply tank, f ... first water supply tank, e ... water supply pump, 5 ... handpiece, 7 ... suction path, 10 ... foot switch, 11 ... vibrator section, 12 ... second 1 waterway, 1
3 ... Treatment probe, 16 ... Endoscope, 18 ... Sheath, 2
0 ... Treatment channel, 21 ... Water supply base, 25 ... Second water supply channel, 33 ... Third water supply channel.

Claims (1)

[Claims] 1. An ultrasonic transducer, a probe for transmitting the ultrasonic vibration of the ultrasonic transducer to a treated portion, and a treatment for inserting the probe from the rear end and guiding the tip of the probe to the treated portion. In an ultrasonic therapy device having a sheathing device having a channel for liquid supply and a liquid supply port, liquid supply to the sheath device is turned ON / O in synchronization with ultrasonic oscillation of the ultrasonic transducer.
An ultrasonic therapeutic apparatus, which is provided with a switching mechanism for performing FF and / or adjusting a liquid delivery amount.