JPS61268244A - Ultrasonic stone crushing probe - 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 [Field of Industrial Application] The present invention relates to an ultrasonic lithotripter probe for crushing stones formed in body cavities such as the bladder, urethra, and kidney by applying ultrasonic vibration wJ.

[Conventional technology]

In general, an ultrasonic lithotripsy probe consists of a grip section containing a built-in ultrasonic vibrator and a transmission tube for transmitting ultrasonic vibrations.

Then, for example, the tip of a transmission tube inserted into the body cavity circle through the sheath of a laparoscope is moved against the stone in the body cavity circle, thereby destroying the stone (UK, FAT).

QB2116045A).

[Problem that the invention seeks to solve]

There are actually various types of coelom stones to be fragmented. That is, the composition, size, shape, fragility, etc. of stones vary, and furthermore, the location of the stones is not constant. Therefore, in addition to stone crushing using ultrasonic waves, it is often necessary to use various types of stone crushing tools, such as electric discharge stone crushing and mechanical stone crushing. For example, in the case of gradual nephrolithotomy,
Depending on the lithotripsy means used, it is necessary to insert and remove various probes and forceps from the laparoscopic sheath. Particularly in long-term surgeries, the insertion and removal of the insertion and removal procedures is a considerable number of times, which is extremely troublesome.

On the other hand, in ultrasonic probes, crushed stone fragments are removed by suction through the inside of the transmission tube, but during this process, stone fragments often get caught between the holes and cause blockages. there were. In this case, the ultrasound probe must be pulled out of the sheath of the laparoscope to remove the blockage. The suction tube also needs to be removed. These attachment/detachment and cleaning operations require a lot of effort and time, which is a major problem in surgeries where such time should be used effectively.

The present invention has been made by focusing on each of these problems.
The object is to facilitate the use of other stone crushing means and treatments, and to facilitate the removal of blockages, as well as to improve their workability.

[Means for solving problems]

At the rear end of the suction hole, in addition to the suction tube connection port, at least one insertion port communicating with the suction hole is provided.

[Effect]

This W! i While the sonic lithotripsy probe is inserted into the body cavity, other lithotripsy probes, forceps, and other treatment tools are inserted through the insertion port and used in conjunction with the sonic lithotripsy probe. Also, remove the clog in the suction hole by inserting the removal valve (-r).

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows an ultrasonic lithotripsy probe 1, which consists of a grip part 2 and an insertion part 3. Grip part 2
has a Langevin type vibrator 5 housed inside an exterior case 4, and the Langevin type vibrator 5 includes a piezoelectric element 6,
mW from the electrode plate 7, front metal block 8, and rear metal block 9. The piezoelectric element 6 and the electrode plate 7 are sandwiched between the front and rear metal blocks 8.9. Further, a bolt portion 1o is attached to the front metal block 8 by screwing it into the front metal block 8, thereby attaching the integrated part 111.
It consists of The gelt@10 passes through the piezoelectric element 6, the electrode plate 7, and the rear metal block 9. The piezoelectric element 6, electrode plate 7, and rear metal block 9 are compressed and fixed by a nut 12 threaded onto the bolt portion 10. And this Langevin type oscillator 5
is supported and fixed to the exterior case 4 by screws 13 at points located at vibration nodes. That is, in this embodiment, the curved portion of the front metal block 8 is fixed with screws 13. A flap 14 is integrally formed on the outer periphery of the front end of the front metal block 8, and the flap 14 is abutted against the front end of the exterior case 4.

A conical horn 15 is integrally formed at the front end of the front metal block 8. Further, a metal vibrator 17 as an insertion MII 3 is connected to the tip of the horn 15. That is, the proximal end of the mother tube 17 is tightly fitted into the connecting hole 18 coaxially formed at the tip of the horn 15 and welded to the connecting hole 18 to fix the connection.

Note that 20 is an insulating material.

On the other hand, a front cover 21 is provided on the outer periphery of the front end of the exterior case 4.
The rear end of the screw is scattered and peeled off. This front cover 21 surrounds the horn 15. Furthermore, a retaining ring 23 is attached to the tip of the front cover 21. An elastic O-ring 2 is provided on the inner surface of this retaining ring 23.
5 is inserted. Each elastic O-ring 25 elastically adheres to the outer circumferential surface of the cylindrical end of the horn 15 and shields the space therebetween.

Further, as will be described later, a base tube-shaped base 28 to which a suction tube 27 is connected is screwed and fixed to the rear end wall 26 of the exterior case 4 so as to pass through the base 28 in a watertight manner. Inside the cap 28 is a small diameter portion 2 formed at the protruding end of the bolt portion 10.
9 is loosely fitted. Furthermore, the inner surface of the cap 28 has zero elasticity.
A ring 32 is fitted. And this elasticity Q
The ring 32 is elastically in close contact with the outer peripheral surface of the upper small diameter cap 29 and completely shields the outer peripheral surface thereof.

By the way, the integrated part 1 of the above Langevin type vibrator 5
1 and the center of the horn 15 are through holes 33 and 34 that extend along the same axis thereof. These and the inner hole 35 of the vibrator 17 and the inner hole of the base 28 are arranged on the same line and communicate with each other, and a suction hole 36 is formed.

On the other hand, the rear end of the cap 28 forms a suction tube connection 038 to which the suction tube 37 is connected, and this is connected to the suction hole 3
It is connected to 6. The suction pipe 37 is connected to a suction source (not shown).

Furthermore, a knob 39 is formed in the middle of the rear end of the base 28, which branches diagonally to the rear side. An insertion port 40 that communicates with the suction hole 36 by this vibrator 39
is formed. Further, an opening/closing cock 4 is provided in the middle of the tube 39, so that the insertion 040 can be opened and closed. A rubber cap 43 having an insertion hole 42 is attached to the end of the mother tube 39.

Further, @44 is formed on the outer periphery of the rear metal block 9 along its axial direction. A power cord 45 that is led to the electrode plate 7 of the piezoelectric element 6 is housed in this a44. The gap is filled with a filler 46 such as epoxy, thereby fixing the power cord 45.

In addition, the rear end wall 2 of the power cord 45Fi exterior case 4
The rear end wall 26 through which this t-source hood 45 passes is provided with a lead-out duct 47 through which the power cord 45 passes through. Further, an elastic tube 48 for securing is attached to the rear end of the lead-out duct 47.

On the other hand, the most extreme part of the vibrator 17 as the insertion section 3 is the first
As shown in the figure, a plurality of slits 49 are formed, and the body cavity F
It constitutes an abutting portion 5° that contacts the F3 stone.

Next, how to use the ultrasonic lithotripsy probe 1 will be explained. FIG. 2 shows the case where a stone 52 formed in the kidney is crushed. That is, the laparoscope 54 is installed in advance in the kidney 53.
A sheath 55 is inserted into the sheath 55, and a scope 56 with a treatment instrument insertion channel is inserted into the sheath 55. Furthermore, a flow of physiological saline 711 is performed to the renal gland 53P3 through the injection tube 57 and the discharge tube 58 at the proximal end of the sheath 55 and the supply/discharge path (not shown) within the sheath 55.

Then, insert the ultrasonic lithotripter tube 1 into the kidney 53 through the treatment instrument insertion channel (not shown) of the scope 56 &lS? Insert. Then, as shown in FIG. 2, the laparoscope 54 is protruded from the distal end of the sheath 55.
The abutting portion 50 is placed on the calculus 52 under observation.

Here, a driving voltage is applied to the piezoelectric element 6 from the power source. This generates ultrasonic vibrations in the Langevin type vibrator 5, which are amplified by the horn I5 and transmitted to the abutting portion 5θ via the vibrator 77 (transmission tube). Therefore, when the ultrasonically vibrating abutting portion 50 is pressed against the calculus 52, the vibration becomes a crushing force, and the calculus 52 is crushed.

In addition, at the time of this crushing, suction is carried out through the suction tube 27 and the suction hole 36 by a suction pump (not shown), so that the crushed pieces are sucked together with physiological saline.
The suction hole 36''f is passed through to be expelled from the body.

By the way, depending on the size of the stone 52 and its components, for example, an electric discharge lithotripter may be used in combination. In this case, stop the power supply to probe l and open/close cock 41f.
Open the insertion port 40 and insert the soft electric discharge lithotripsy probe 60 as shown in the figure, and insert the kidney 53 through the suction hole 36.
Insert it into the same. And then, under the observation of the laparoscope 54, that stone 52t? Destroyed by electrical discharge. In this way, the electric discharge lithotripter can be used without taking the trouble to pull out the probe 1 from the laparoscope 54.

Similarly, a treatment instrument such as a basket catheter can be inserted into the kidney 53 and used if necessary.

Further, depending on the shape and size of the stone pieces sucked through the suction hole 36, the stones may get caught in the middle of the suction hole 36 and become clogged. In this case, by inserting a clogging removal wire through the KV'i insertion port 40, the clogging can be removed without taking the trouble of removing the suction tube 27. Further, this operation is normally performed by pulling out the glove 1 from the sheath 55.

When the insertion port 40 is not in use, the opening/closing cock 4 is kept closed to prevent leakage of saline.

In the present invention, the number of the seven insertion holes 40 is not limited to one, but may be plural.

〔Effect of the invention〕

As explained above, according to the present invention, other lithotripsy probes and various treatment instruments can be inserted and used in combination without having to pull out the ultrasonic lithotripsy probe a-b one by one. In addition, the debris inside the suction hole can be easily removed.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of an ultrasonic lithotripsy probe showing one embodiment of the present invention, and FIGS. 2 and 3 are views of the glove in use, respectively. 1... Ultrasonic lithotripter glove, 36... Suction hole, 38
...Connection port, 40...Insertion port.

Claims (1)

[Claims] An ultrasonic lithotripsy probe having a suction hole communicating with the body cavity circle, characterized in that at least one insertion port communicating with the suction hole is provided at the rear end of the suction hole, in addition to a suction tube connection port. Sonic lithotripsy probe.