JPS62261348A - Stone crushing apparatus - 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 [Industrial Field of Application] The present invention relates to a stone crushing device for crushing stones formed in organs such as kidneys and ureters.

[Conventional technology] Devices for crushing stones formed in the kidneys, ureters, etc.
Various types have been developed in the past.

For example, one of them is one in which a laser beam is guided into an organ using a light guide fiber, and the laser light emitted from the light guide fiber is used to irradiate and crush stones.

[Problems to be Solved by the Invention] However, there is a problem in that stones made of lucium phosphate cannot be effectively crushed even when irradiated with laser light.

SUMMARY OF THE INVENTION An object of the present invention is to provide a stone crushing device that can efficiently and reliably crush stones using laser light and high-pressure fluid.

[Means and effects for solving the problems] This invention has the following features:
A probe 2, a laser generator 6 and a high-pressure fluid supply device 4 connected to the probe 2, and a translucent tip 5 provided at the tip of the probe 2 and through which the laser light from the laser generator 6 passes. and an ejection hole 16 formed in the distal tip 5 to eject the high pressure fluid from the high pressure fluid supply device 4. Furthermore, both the laser beam and the high-pressure fluid can be applied to the stone.

[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. The stone crushing device 1 shown in FIG. 3 has a probe 2 made of metal. At the rear end of this probe 2, there is a first
A high-pressure fluid generating device 4 is connected by a connecting cord 3, and a laser generating device 6 is connected by a second connecting cord 5. The high-pressure fluid generator 4 can generate high-pressure fluid, and the laser generator 6 can generate laser light. Note that each device 4.6 is provided with a foot switch 4a, 6a, and these foot switches 4a,
5a.

1. The laser beam output from the laser generator 6 is guided to the probe 2 by the light guide fiber 7. This light guide fiber 7 is inserted into the probe 2 via the second connection cord 5.

As shown in FIG. 2, a spacer 11 is fixed within the tip of the probe 2, and has a holding hole 8 in the center and four passages 9 in the periphery. And this spacer 11
The tip of the -[-2 light guide fiber 7 is fixed to the holding hole 8 of the probe 2, and its center is aligned with the center of the probe 2. Note that the light guide fiber 7 is composed of a core 12, a cladding 13, and an outer skin tube 14 that covers the cladding 13.

A distal tip 15 is fitted and fixed at the distal end of the probe 2. The distal tip 15 is made of a heat-resistant, light-transmitting material such as ceramics, and has an ejection hole 16 axially penetrated in its center. Therefore, the high-pressure fluid generated by the high-pressure fluid generator 4 and flowing into the probe 2 from the first connection cord 3 is ejected from the ejection hole 16 of the distal tip 15.

Furthermore, an operating section 17 is provided at the base end of the probe 2 . The operating portion 17 is provided with a first lever 19 for turning on a first switch 18 and a second lever 22 for turning on a second switch 21. When the first switch 18 is turned on, the high-pressure fluid generator 4 is activated, and when the second switch 21 is turned on, the laser generator 6 is activated. That is, each device 4.6
is the foot switch 4as6a and the first and second switches 2
1.22.

When crushing a stone formed in an organ such as a kidney or ureter using the stone crushing device 1 having such a structure, first the probe 2 is introduced into the organ using a rigid scope (not shown), and then the probe 2 is introduced into the organ using a rigid scope (not shown). The tip of probe 2 is brought close to the stone under observation. Next, the high-pressure fluid generator 4 and the laser generator 6 are operated by operating the foot switches 4a, 6a or the first and second levers 19,22. Then probe 2
The high-pressure fluid that has flowed into the interior is ejected from the ejection hole 16 of the distal tip 15 toward the calculus, and the light guide fiber 7
A laser beam emitted from the tip passes through the distal tip 15 and irradiates the stone. Therefore, the stone is quickly and reliably crushed by the impact pressure received from the high-pressure fluid and the thermal energy from the laser beam.

FIG. 4 shows a second embodiment of the invention, which includes probe 2.
The structure in which the probe 2 is made of IIJ flexible material instead of metal allows the probe 2 to be used in conjunction with a flexible endoscope.

':j Figures 55 and 6 show a third embodiment of the present invention, which is a combination of a stone crusher 1 and an articulated manipulator #. That is, the laser generator 6 is provided with a multi-joint 28, a metal probe 2 is attached to the joint at the tip, and the high-pressure fluid generator 4 is connected to the rear end of the probe 2 through the first connection. They are connected by cord 5. In addition, a condensing lens 29 (collimator lens) is provided at the rear end of the probe 2 beyond the connection part with the first connection cord 3, which directs the laser beam to the tip tip 3.
It is designed to lead to 5. Incidentally, the multi-joint 28 is provided with reflecting mirrors (not shown) at the joints, and these reflecting mirrors direct the laser beam exclusively to the condensing lens 29.

C Effects of the Invention] E-1: As described above, according to the present invention, stones can be crushed by both laser light and high-pressure fluid. Therefore, stones can be crushed more quickly and reliably than when using laser light alone.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the tip of a probe showing a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG.
The figure is a schematic diagram of the entire device, FIG. The figure is also a sectional view of the tip of the probe. 2...Probe, 4...High C: Fluid generator, 6.
...Laser generator, 15...Tip tip, 16...
・Blowout hole.

Claims (1)

[Claims] a probe, a laser generator and a high-pressure fluid supply device connected to the probe, a translucent tip provided at the tip of the probe through which laser light from the laser generator passes, and a tip formed on the tip. A stone crushing device comprising: an ejection hole for ejecting high-pressure fluid from the high-pressure fluid supply device.