JPH0736822B2 - Laser probe holding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser probe holder for a laser application machine such as a laser knife and a laser processing machine, and more particularly to a laser probe holder for guiding a laser beam generated by a laser generator to a target portion.

[0002]

2. Description of the Related Art Conventionally, for example, a laser scalpel has been known to perform incision / coagulation / hemostasis of living tissue or incision / evaporation treatment of an affected area such as polyps or ulcers by YAG laser light or CO ₂ laser light. It is composed of a laser generator for generating laser light and a light guide path connected to the laser generator for guiding the laser light generated by the laser generator to a target site. Recently, a lightweight and flexible laser fiber is often used as the light guide path.
In particular, a laser probe with a double structure in which a laser fiber is inserted in a Teflon tube and air is sent by utilizing the gap between the Teflon tube and the laser fiber is used. A laser scalpel that performs the above laser treatment by introducing a probe into a body cavity has been put into practical use. In this type of laser knife, a long laser probe having a length of several meters to several tens of meters is usually used so that the treatment can be performed even at a place sufficiently separated from the laser generator.

By the way, when a laser beam is guided to a target site by using an endoscope channel with such a long laser probe, since the laser probe itself is also highly flexible, it sags on the way to the floor surface. The laser probe may become contaminated due to contact, and if the surgeon handles the laser probe without noticing this, the inside of the endoscope channel and the surgeon's hand become contaminated, resulting in surgery of the patient. There is a serious problem that the parts are contaminated. When the laser treatment is not performed, the laser probe is wound in a loop with the incident end connected to the laser generator so as to prevent the laser probe from interfering with the operator and covers the upper surface of the laser generator. It was supposed to be placed on a sterilized sheet, but if you touch the laser probe carelessly, this laser probe will slip from the top of the laser generator to the floor and become contaminated, and even the laser that fell on the floor. There are various problems that an operator, an assistant, a nurse, etc. step on and damage the probe without noticing it.

In order to solve such a problem, conventionally, a plurality of laser probe holding members are hung from the ceiling of an operating room, and the holding members hold the laser probe to avoid contact with the floor surface. However, it is necessary to install a sterilized holding member for each laser treatment room on this platform, and the position of the holding member is fixed even when the laser treatment is not performed. The laser probe held by the holding member has the drawback that the degree of freedom of the operator, assistant, nurse, etc. is limited. Further, in Japanese Unexamined Patent Publication No. 185843/1982, as shown in FIGS. 6, 7 and 8, a supporting tool 6a provided at one longitudinal end of a recess 5 formed on one side of the upper surface of the laser generator 1. A first strut 7 rotatably connected to the shaft 8 by a stay 16 in a state of being raised substantially vertically, and a groove 9 opened to the upper end surface along the longitudinal direction of the first strut 7; A second support column 12 slidably inserted in the groove 9 whose side surfaces except the upper end surface of the groove 9 are closed by a cover plate 11 having an elongated hole 10 formed therein, and the elongated hole 1 at the lower end portion thereof.
The laser generator includes a tightening screw 13 which is passed through 0, a first holding portion 14 for holding and fixing the laser probe 3 formed on the upper end portion, and a second holding portion 15 for holding the handpiece on the base. When 1 is not used, the second support column 12 is put in the first support column 7 and the first support column 7 is housed in the recess 5, and the cover 6 is closed so as not to be exposed to the outside of the laser generator 1. A laser device according to the above is disclosed.

[0005]

However, in such a holding structure, the laser probe 3 is held by the first holding portion 14 which projects from the laser generator 1 in a substantially vertical direction,
Further, since the handpiece is fitted and held in the second holding portion 15, the holding position of the long laser probe 3 is limited, and when the laser treatment is performed, the handpiece is attached to the outlet port 2 of the laser generator 1. When the laser probe 3 connected via the connector 4 is directly extended to the surgical site, it is still impossible to avoid the flexible laser probe 3 sagging on the way and coming into contact with the floor surface and being contaminated. In addition, there was a big problem in practice that the working space and the degree of freedom of the surgeon, assistant, nurse, etc. could not be secured sufficiently. In addition, the above conventional holding
In the structure, the laser probe 3 is only one place.
Since it has a structure to hold it, it can be held without contacting the floor surface.
The length of the effective laser probe 3 is naturally limited.
It was That is, only the relatively short laser probe 3 is held.
I couldn't. Therefore, the laser generator 1
The laser probe cannot be extended far away
Therefore, after all, there is a working space for surgeons, assistants, nurses, etc.
There is a big problem in practical use that the degree of freedom cannot be secured.
Had.

The present invention has been made to solve such problems, and it is possible to obtain a laser of any length including a long one.
It is possible to hold the laser probe and
Be optimized place where to hold the elongated laser probe without changing the installation position of the over The generator itself
Possible and to, or contaminated laser probe hanging on the floor, or damaged trampled and uncontaminated in direct contact with the outer wall surface of the laser generator, the patient in use of laser application machine It is an object of the present invention to provide a laser probe holding device capable of ensuring safety without being contaminated, and capable of securing a sufficient working space and degree of freedom for operators, assistants, nurses and the like.

[0007]

A laser professional according to the present invention
Over Bed holding device, a laser of the laser application unit for guiding the laser beam generated by the laser generator to the target site with the laser probe
A plurality of probes for holding the probe holding device, and the bendable tube provided on the outer wall surface of the front SL laser generator, the laser probe is disposed on the outer periphery of the bend freely tube
An elastic holder is provided, and
One of the holders holds the diameter of the laser probe.
With a dango-shaped opening that connects holes that can be held in a dango-like shape
The radius of the hole communicating with this and forming the dango-shaped opening
It is characterized in that a tapered opening that spreads in the direction is formed . Further, in the present invention , the flexible tube may be further expandable and contractible .

[0008]

1 and 2 are perspective views of an embodiment of the present invention, FIG. 3 is a side view showing a stretchable and bendable tube according to the present invention in a stretched state, and FIG. 4 is a line I--I of FIG. 5 is a sectional view taken along line II-II of FIG. In the figure, reference numeral 1
Is a laser generator. The laser generator 1 is provided with a carrying handle 17 and a lead-out body 2 through which the laser light generated here is guided. The lead-out body 2 has a built-in condenser lens for collecting the laser light. The laser probe 3 is connected via the connector 4. This laser probe 3
Is introduced into the body cavity through the channel of the endoscope, and although not shown in detail, it has a double structure in which a laser fiber such as quartz or thallium bromoiodide is inserted into the Teflon tube. Air can be supplied by utilizing the gap between the laser and the laser fiber.

On the other hand, a T-shaped groove portion 18 having a T-shaped cross section made of a magnetic material such as iron or stainless steel is formed as a first engaging portion on a part of the upper outer wall surface of the laser generator 1. By inserting the flange 20 in which the permanent magnet 19 as the second engaging portion shown in FIG. 3 is embedded along the T-shaped groove portion 18, the flange 20 is formed by the magnetic force of the permanent magnet.
Is magnetically attached, and is detachably connected so as not to come out except in the insertion direction.

An end of a flexible tube 21 is fixed to the flange 20, and a stopper 22 is fixed to the other end of the flexible tube 21. Flexible and flexible tube 2
As shown in FIG.
Are alternately and continuously repeated. Usually, the thickness of the concave portion 24 is made smaller than that of the convex portion 23 by using a synthetic resin such as vinyl chloride, urethane, or polyethylene, or the central portion of the concave portion 24 is formed. Each of the recesses 24 is slightly expanded and contracted and bent so that it can be fixed in a free length and a free shape. Further, a rubber-like elastic material such as silicone or urethane is provided on the outer periphery of the convex portion 23 in the middle portion of the expandable / flexible tube 21.
A plurality of first probes having a shape obtained by cutting out a body plate
Flexible holding tube with elastic holder 25 fitted
On the outer periphery of the convex portion 23 at the tip of 21, the silicon and
It has a shape obtained by cutting out a plate of rubber-like elastic material such as tongue.
The second elastic holders 26 of the second probe are fitted.
It The first probe elastic holder 25 and the second probe elastic holder 25
The lobe elastic holders 26 are all expandable / bendable tubes 2.
1 has a hole with an inner diameter slightly smaller than the outer diameter of the convex portion 23,
When the recessed part of the flexible tube 21 is fitted into the hole
More locked. The first probe elastic holder 25
Also, the second elastic probe holder 26 can be fitted into the position / angle of the arbitrary convex portion 23 of the expandable / flexible tube 21 by widening the inner diameter. As shown in FIG. 4, in the first probe elastic holder 25, a circular opening 28 slightly larger than the diameter dimension of the laser probe 3 is formed in a radially projecting portion 27 and is gradually communicated with the circular opening 28 in the radial direction. And a tapered opening 29 that spreads over the laser probe 3 is provided, and the boundary between the openings 28 and 29 is formed to be slightly smaller than the diameter dimension of the laser probe 3. The probe elastic holder 25 is pressed against the tapered opening 29, inserted into the circular opening 28, and held along the outer circumference of the expandable / bendable tube 21. In this case, by arranging the laser probe 3 so as to be held spirally along the outer circumference of the expandable / flexible tube 21 by the first probe elastic holder 25, the expandable / flexible tube 21 can be placed at any position. Even if the laser probe 3 is expanded and contracted at an angle, the laser probe 3 can be made to follow freely without breaking. Second laser probe elastic holder 2
6, there is a protrusion 27a on the opposite side as shown in FIG.
A hole with a diameter slightly smaller than the diameter of the laser probe 3.
A dumpling-shaped opening 30 which communicates with the dumpling shape, this Dunn
This hole communicates with the outermost hole of the bowl-shaped opening 30 and
And a tapered opening 29a that gradually expands in the radial direction . The dango-shaped opening 30 and the tapered opening 29
The boundary with a is formed to be slightly smaller than the diameter dimension of the laser probe 3, and the tip-unsupported portion of the laser probe 3 is looped and pressed against the tapered opening 29a, so that the dango-shaped opening 30 is formed. With laser probe 3
Is elastically held and fixed.

In the apparatus of the present invention constructed as described above, the sterilized laser probe 3 connected to the outlet port 2 of the laser generator 1 through the connector 4 is expanded and contracted with an appropriate degree of slack. The tapered opening 29 and the circular shape are formed by pressing an arbitrary portion of the flexible tube 21 into the tapered openings 29 attached to the plurality of first probe elastic holders 25 so as to form a spiral shape along the outer circumference of the flexible tube 21. Opening 2
The boundary of the laser probe 3 is larger than the diameter of the laser probe 3 and is inserted into the circular opening 28 to be held. Further, the tip end surplus unretained portion of the laser probe 3 is formed into a loop shape having an appropriate diameter and pressed against the tapered opening 29a attached to the second probe elastic holding body 26, whereby the tapered opening 29a and the dango-shaped opening 30 are formed. The dimension of the boundary portion where and contact is larger than the diameter dimension of the laser probe 3 and is inserted into the dango-shaped opening 30 and elastically held and fixed. In this embodiment, the dango-shaped opening 30
Is composed of three holes. Therefore, from 0 to 3 times
Loop at the tip of the laser probe 3 at any time between
It can be formed and retained. Therefore,
Relatively short laser process that does not need to be formed once
The loop must be formed 3 times from
Laser probe of any length up to long laser probe 3
It is possible to hold the bump 3.

The expandable / bendable tube 21 has one end fixed to a flange 20 detachably connected to a T-shaped groove 18 formed on the outer wall surface of the laser generator 1 with a permanent magnet embedded in the bottom surface. Ordinarily, when the laser generator 1 is not used as shown in FIG.
Even when a long laser probe 3 is used in a state where most of the expandable / bendable tube 21 is compressed, the middle part is bent and comes into contact with the floor surface, or directly contacts the outer wall of the laser generator 1. The laser probe 3 is not contaminated at all, and the safety for the patient is ensured and the working space and the degree of freedom of the surgeon, assistant, nurse, etc. can be secured sufficiently. In addition, as shown in FIG. 1, an expandable / bendable tube 21 in which a laser probe 3 is spirally held along the outer periphery is used as a suitable place for a target site on a table for performing laser treatment using the laser generator 1. By stretching / bending to any position / direction, each recess 24 of the expandable / bendable tube 21 is expanded / contracted little by little to be fixed in a free length and the laser probe 3 may be bent. The flexible and flexible tube 21 can be spirally followed along the outer circumference of the flexible and flexible tube 21.
A required amount of the laser probe 3 elastically held by the dango-shaped opening 30 by forming a loop at the tip of the dango-shaped opening 30
By opening the endoscope more open and inserting it into the channel of the endoscope, it is possible to prevent contamination of the operator or the channel of the endoscope and ensure safety without any contamination of the patient.

[0013]

As described above, according to the present invention , the laser
Without moving the installation position of the generator, this moving the position to hold the elongated laser probe best place
You can Also, near the tip of the laser probe to be held
By holding and looping any number of times
Holds a length of laser probe without touching the floor
can do. Therefore, the laser probe hangs down on the floor and becomes contaminated, or it is trampled and damaged.
In addition, since there is no direct contact with the outer wall surface of the laser generator to contaminate it, it is possible to ensure safety when using the laser application machine so that there is no contamination to the patient, and the surgeon or assistant.・ Work space and degree of freedom for nurses can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a stretched and bendable tube according to the present invention in a stretched state.

FIG. 4 is a cross-sectional view taken along the line II of FIG.

5 is a cross-sectional view taken along the line II-II of FIG.

FIG. 6 is a perspective view of a conventional laser generator.

FIG. 7 is a side view of a column of a conventional laser generator.

8 is a partial cross-sectional view of the column shown in FIG.

[Explanation of symbols]

 1 Laser Generator 3 Laser Probe 18 T-Shaped Groove 19 Permanent Magnet 20 Flange 21 Flexible Tube 25 First Probe Elastic Holder 26 Second Probe Elastic Holder

Claims (2)

[Claims] Rezapuro of 1. A laser application machine that leads to the target site of laser light generated by the laser generator in the laser probe
In over Bed holding device, and the bendable tube provided on the outer wall surface of the front SL laser generator, a plurality of probes elastic that holds the laser probe is disposed on the outer periphery of the bend freely tube
And a probe elastic holding body.
One of them has a diameter that can hold the laser probe.
Dango-shaped opening with holes communicating with it
And it spreads in the radial direction of the hole that constitutes this dango-shaped opening.
A laser probe holding device for a laser application machine, characterized in that a tapered opening is formed . 2. The laser probe holding device for a laser application machine according to claim 1, wherein the bendable tube is further expandable and contractible.