JPH0446732Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Technical Field This invention relates to laser application machines such as laser scalpels and laser processing machines, and particularly to a holding device for a laser probe that guides laser light generated by a laser generator to a target site.

b. Prior art and its problems For example, a laser scalpel, as is well known, uses YAG laser light or CO ₂ laser light to incise, coagulate, and stop bleeding in living tissue, or to incise and vaporize affected areas such as polyps and ulcers. It consists of a laser generator for generating laser light, and a light guide connected to the laser generator for guiding the laser light generated by the laser generator to the target site. These days, lightweight and highly flexible laser fibers are often used as this light guide path.
Using a laser probe that uses the space between the Teflon tube and the laser fiber to supply air,
A laser scalpel has been put into practical use that performs the above-described laser treatment by introducing this laser probe into a body cavity through a channel of an endoscope.

In this type of laser scalpel, a laser probe having a length of several meters to several tens of meters is usually used so that treatment can be performed even at a sufficient distance from the laser generator.

By the way, when using such a long laser probe to guide the laser beam to the target area using an endoscope channel, the laser probe itself is highly flexible, so it may sag midway and come into contact with the floor. Unfortunately, the laser probe may become contaminated, and if the operator handles the laser probe without being aware of this, the channel of the endoscope may become contaminated or the operator's hands may become contaminated, resulting in patient injury. A serious problem arises in that even the surgical site becomes contaminated.

Also, when not performing laser treatment, the laser probe should be placed so that it does not get in the way of the surgeon.
With the input end connected to the laser generator, the laser probe was wound into a loop and placed on a sterile sheet covering the top of the laser generator, but if the laser probe was accidentally touched, , this laser probe slipped from the top of the laser generator to the floor and became contaminated.
Furthermore, various problems arise in that an operator, an assistant, a nurse, etc. may step on a laser probe that has fallen on the floor without noticing it and damage it.

To solve this problem, conventionally, multiple laser probe holding members were suspended from the ceiling of the operating room, and the holding members held the laser probe to avoid contact with the floor. However, in this case, it is necessary to install a sterilized holding member in the chamber where laser treatment is performed each time, and since the position of the holding member is fixed, the holding member cannot be used even when laser treatment is not performed. The laser probe held in the
This method has the disadvantage that the degree of freedom for nurses, etc. is limited.

In addition, Japanese Patent Application Laid-open No. 57-185843 also has figures 5 and 6.
7, it is rotatably connected by a shaft 17 to a support 15a provided at one longitudinal end of a recess 14 formed on one side of the upper surface of the laser generator 10. The first support 16 is attached to the stay 25
A groove 18 is opened along the longitudinal direction of the first support column 16 in the upper end surface, and a long hole 19 is bored in the side surface of the groove 18 except for the upper end surface. The groove 18 is closed with a cover plate 20.
a second pillar 21 slidably inserted into the
Tightening screw 2 passed through the elongated hole 19 at the lower end
2, a first holding part 23 that holds and fixes the laser probe 12 formed at the upper end part, and a second holding part 24 that fits and holds the handpiece.When the laser generator 10 is not used, the second holding part 23 A laser device is disclosed in which a support 21 is placed in a first support 16, the first support 16 is housed in a recess 14, and a cover 15 is closed so that the laser generator 10 is not exposed to the outside at all. ing.

However, in such a holding structure, the first
The laser probe 12 is held in the second holding part 23, and the hand piece is fitted and held in the second holding part 24. Therefore, when using a long laser probe 12, the bent midway part should not touch the floor surface. If the laser probe 12 is contaminated by contact or direct contact with the outer wall of the laser generator 10, or if laser treatment is performed, the laser is connected to the outlet body 11 of the laser generator 10 via the connector 13. Since the probe 12 is extended directly to the surgical site, it is still impossible to prevent the highly flexible laser probe 12 from sagging midway and coming into contact with the floor surface and becoming contaminated.

Moreover, the first holding part 23 that holds and fixes the laser probe 12 and the second holding part 24 that fits and holds the handpiece cannot be sterilized and are always in a contaminated state. When performing this procedure, if the surgeon directly operates the laser probe or handpiece, the surgeon's hands and the inside of the endoscope channel become contaminated, which is a practical problem, as the patient's surgical site is also contaminated. It had some problems.

c Purpose This invention was made to solve these problems, and when using a laser probe in a laser application machine, it may hang down on the floor and become contaminated, or the outer wall of the laser generator may become contaminated. It is an object of the present invention to provide a laser probe holding device that is not only free from contamination due to contact with the laser probe but also easy to sterilize and does not impede movement or storage.

Therefore, in this invention, in a laser application machine that guides the laser light generated by a laser generator to the target area via a laser probe, a movable rod installed in the upper part of the laser generator that can freely move in and out in the vertical direction. , a fiber hanger equipped with a locking member provided on the upper part of the laser generator to lock the movable rod at an arbitrary position, a fiber holder that is extendable and retractable and holds the laser probe at a desired position; and a fiber hanger. a movable part that is provided near the base end and adjusts the rotation of the fiber hanger around an axial direction perpendicular to the moving rod;
a bayonet mount mechanism that is provided across the base end of the fiber hanger and the distal end of the movable rod and removably attaches the two; A male claw provided on one of the tips of the rod, a female claw provided on the other of the proximal end of the fiber hanger or the tip of the movable rod, and an engaged state of the male and female claws. and an operating member for locking and unlocking the lock.

d. Structure of Embodiment Hereinafter, an embodiment of this invention will be described with reference to FIGS. 1 to 4 of the accompanying drawings.

FIG. 1 is an external perspective view of a laser treatment device to which the laser probe holding device of this invention is applied.

In the figure, 1 is a laser generator, which constitutes the main body of the laser treatment device.

A movable rod 2 is attached to the upper surface 1a of the laser generator 1 so as to be able to move in and out of the laser generator 1, and is locked at the position shown in the figure by a fixing screw 2a as a locking member. .

A fiber hanger 4 is removably fitted to the distal end of the moving rod 2 via a bayonet mount mechanism 3. A movable part 4a that can freely rotate around an axial direction perpendicular to the moving rod 2 and can be stopped at any rotation angle.
It is equipped with

The fiber hanger 4 is extendable and retractable, with each pipe section moving forward and backward in sequence from the tip end to the movable section 4a. For example, fiber holders 5, 5 are attached to the tip end and the middle section, respectively. be.

On the front surface of the laser generator 1, there is arranged an outlet through which the laser light generated by the apparatus 1 is guided. 6 is connected.

And, this laser probe 6 has two fiber holders 5 and 5 in the fiber hanger 4.
5, and its tip is free.

Note that this laser probe 6 is introduced into the body cavity through a channel of an endoscope, for example.
Although details are not shown, it has a double structure in which a laser fiber made of quartz, bromo-thallium iodide, etc. is inserted into a Teflon tube, and air can be supplied using the space between the Teflon tube and the laser fiber. It's becoming like that.

Next, with reference to FIGS. 2 to 4, the details of each part related to this invention in FIG. 1 will be explained.

First, in FIG. 2, a flanged cylindrical body 7 is fixed to the inner plate 1b of the laser generator 1, and a male thread 7a is cut on the outer circumference of the cylinder.

The cylindrical outer peripheral portion of this flanged cylindrical body 7 projects to the outside through a hole bored in the upper surface 1a of the laser generator 1.

A retainer 2b can be screwed onto the rear end of the moving rod 2, and after removing the retainer 2b and inserting the fixing screw 2a and sleeve 8,
The rod 2 is connected to the hollow part of the flanged cylindrical body 7 and the inner plate 1.
Penetrate through the hole drilled in b, and then remove the retainer 2.
b is screwed on.

A tapered surface 2c is formed on the inner wall surface of the fixing screw 2a, and this tapered surface 2c is brought into sliding contact with the truncated conical sleeve 8, so that the female thread 2d of the fixing screw 2a is connected to the flanged cylindrical body. It is screwed onto the male screw 7a of No.7.

The bayonet mount mechanism 3 is mainly composed of a male claw portion 3a, a female claw portion 3b, and a leaf spring 3c.

The male claw portion 3a is fixed to the base end of the fiber hanger 4, and has three fan-shaped claws 3d and a rotation stopper hole 3e, as shown in FIG.

The female claw part 3b is fixed to the tip of the movable rod 2, and as shown in FIG. It has a pin 3h, and a leaf spring 3c is provided behind each fan-shaped claw 3g.

Further, a pin hole 3i is formed in the side notch of the female claw portion 3b, and a rotation stop pin 9b fixed to the boss portion 9a of the rotation stop operation member 9 is inserted into this pin hole 3i. , a positioning pin 9 is inserted between the boss portion 9a and the surface of the pin hole 3i in the notch.
A coil spring 3j is inserted through b. The rotation stop pin 9b is positioned so as to face the rotation stop hole 3e when the male claw part 3a is fitted into the female claw part 3b.

The fiber holder 5 has a hook portion 5a, and the laser probe 6 is held in the hook portion 5a by inserting the laser probe 6 therein.

e. Effects of the Embodiment The effects of the embodiment configured as described above will be explained below.

First, in order to attach the fiber hanger 4 to the movable rod 2, after overlapping and fitting the claw 3d of the male claw part 3a of the bayonet mount mechanism 3 into the notch 3f of the female claw part 3b, the fiber hanger 4 is attached to the moving rod 2. 4 side to the right, and the male claw part 3 is rotated by the biasing force of the leaf spring 3c.
Lock the claw 3d on the a side with the back side of the claw 3g on the female claw portion 3b side.

At this time, the rotation stop pin 9b is fitted into the rotation stop hole 3e of the male claw part 3a by the action of the coil spring 3j, and the relative rotation of the male and female claw parts 3a and 3b is stopped.

Then, after loosening the fixing screw 2a and adjusting the height in the Z direction and the rotational position in the θ direction of the movable rod 2, loosen the fixing screw 2a and tighten the sleeve 8 by the action of its tapered surface 2c. is fixed at the adjusted position, the fiber hanger 4 is extended or retracted, and the movable part 4a is rotated,
To enable a laser probe 6 to be guided to a place required for treatment.

In this state, each hook portion 5a of the fiber holder 5, 5 attached to the fiber hanger 4,
A laser probe 6 is hooked to 5a and hung as shown in FIG.

Thereby, it is possible to avoid the laser probe 6 from coming into contact with the floor, the laser generator 1, etc., and thereby treatment can be performed without contaminating the laser probe 6.

After use, after removing the laser probe 6, push down the rotation stop operation member 9 against the biasing force of the coil spring 3j to pull out the rotation stop pin 9b from the hole 3e, and rotate the fiber hanger 4 side to the left to remove it. The male claw part 3a is pulled out from the female claw part 3b, and the fiber hanger 4 is removed from the moving rod 2.

Furthermore, when the fiber hanger 4 is rotated to the left, the claws 3d of the male claw portion 3a and the notches 3f of the female claw portion 3b are in phase with each other due to the action of the positioning pin 3h, so that there is no trouble in removing the fiber hanger 4 due to excessive left rotation.

Since the base end of the fiber hanger 4 and the distal end of the movable rod 2 are connected using a bayonet mount mechanism, the connected state is reliably maintained and surgery using a laser can be performed without any trouble. The fiber hanger 4 and the movable rod 2 can be separated by a simple operation, and most of the movable rod 2 can be immersed into the laser generator 1, so the fiber hanger 4 can be sterilized and the laser generator 1 can be easily stored and moved. Become so.

It should be noted that the mounting positions of the male claw portion 3a and female claw portion 3b of the bayonet mount mechanism 3 in the above embodiment are not limited to those in the embodiment, and of course may be reversed.

Furthermore, the device according to this invention can be applied not only to laser treatment devices but also to any laser application equipment.

f Effects As described above, this invention provides the following effects.

(b) Since the laser probe can be removed,
Easy to sterilize.

(b) Do not drop the laser probe on the floor and cause contamination.
The laser probe can be guided to the treatment area without being stepped on and damaged or coming into contact with the outer wall of the laser generator and contaminating it.

(c) The laser probe can be positioned at any position by the action of the telescopic fiber hanger and movable rod.

(d) Since the fiber hanger can be removed and most of the moving rod can be inserted into the laser generator, it does not interfere with the movement or storage of the laser generator.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of this invention, Figs. 2 to 4 are detailed views of each part of this invention in Fig. 1, and Figs. 5 to 7, respectively. 2A and 2B are diagrams for explaining the prior art, respectively. 1... Laser generator, 2... Moving rod, 2a...
... Fixing screw (locking member), 3 ... Bayonet mount mechanism, 4 ... Fiber hanger, 4a ...
Movable part, 5... fiber holder, 6... laser probe.

Claims (1)

[Scope of Claim for Utility Model Registration] In a laser application device that guides laser light generated by a laser generator to a target area via a laser probe, a movable device that is provided to be able to move in and out from the top of the laser generator in the vertical direction a rod; a locking member provided on the upper part of the laser generator to lock the movable rod at an arbitrary position; a fiber hanger equipped with a fiber holder that is extendable and holds the laser probe at a desired location; and a fiber. a movable part provided near the proximal end of the hanger to adjust the rotation of the fiber hanger around an axial direction perpendicular to the movable rod; and a movable part provided between the proximal end of the fiber hanger and the distal end of the movable rod. and a bayonet mount mechanism that removably attaches the two, and the bayonet mount mechanism includes a male claw provided at one of the proximal end of the fiber hanger or the distal end of the moving rod, and the male claw provided at the base end of the fiber hanger or the distal end of the moving rod, a female claw provided on the other of the base end or the distal end of the moving rod;
A laser probe holding device for a laser application machine, comprising an operating member for locking and unlocking the engaged state of the male claw portion and the female claw portion.