JPS584544A - Handriece for laser knife 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 The present invention relates to a hand piece in a laser scalpel device.

When using a laser scalpel device, it is important to irradiate the laser beam accurately toward the target. In a nine-laser scalpel device using an optical 7-eyeper in the optical waveguide portion that guides the laser beam, the structure of the conventional handpiece part is K-shaped as shown in FIGS. 1 and 2. That is, the optical fiber 2 covered with the coating 1 without any modification as shown in FIG.
In some cases, the tip of the optical fiber 2 is inserted into a tapered straight tube 3 and glued, and a lens 4 is attached to the tip of the optical fiber as shown in Figure 2. .

However, in the case shown in Figure 1, the optical fiber 2
Because the optical fiber is easy to move, it is difficult to orient the optical fiber at its tip, and it is dangerous to hold the tip of the optical fiber 2 by hand. 812
In the case shown in the figure, the laser beam cannot be irradiated in any direction other than the 60-axis direction of the straight pipe, so when irradiating a narrow area, the laser beam cannot be irradiated toward the target, or the operator may not be able to see the target. There is a disadvantage that laser light cannot be irradiated.

Therefore, the present invention aims to eliminate such drawbacks and provide a bead for a laser scalpel device that can reliably irradiate a laser beam toward a target under any conditions. It is characterized by connecting a flexible pipe or a movable pipe, inserting it into the holder, and fixing it.

Hereinafter, the present invention will be explained in detail based on an embodiment shown in the drawings.

A cross-sectional view of the laser scalpel attachment according to the present invention is shown in FIG.

This is a laser scalpel device in which the optical waveguide is made of an optical fiber, and the optical fiber bag 5Fi has a cylindrical shape, and the inner diameter is slightly larger than the outer diameter of the coating 1 of the optical fiber 2. There are no particular restrictions on the outer diameter and length, and the dimensions are such that they are easy to hold. Also, regarding the shape, in this example, it is straight K.
It may be bent, but it may be bent. A vibro for determining the direction of the laser beam irradiated from the optical fiber 2 is connected to the tip of the holder 50. #Inner diameter of vibro #i The outer diameter of the coating is also made slightly larger. In this embodiment, a semi-flexible flexible metal tube is used, which normally maintains a certain shape and can be removed by applying a certain amount of force. The tip of the vibro which irradiates the laser beam is formed thin,
In this embodiment, a condensing lens 4 is provided at a portion 9s ahead. Into the holder 5 with this state z<Eve 6,
In this embodiment, the optical fiber 2 having the coating 1 is inserted until the tip of the optical fiber 2 comes into contact with the lens 4. Note that the coating 1 is not necessarily required inside the vibro and the holder 5. After this, 0 was installed around the optical fiber 2.
By screwing the cap 8 to the holder 5 via the ring 7, the O-ring 7 is crushed and pinches the optical 7 eyeper 2, and the holder 5 is removably fixed to the optical 7 eyeper 2.

It can also be used. Note that the optical fiber 2 and the holder 5 may be directly fixed with adhesive or the like without using the O-ring 7 or the cap 8.

MR of the holder 5 having the semi-flexible vibro as described above.
When using a laser scalpel device with a knife attached, you can remove the vibro as necessary. For example, if you use it for dentistry, oral surgery, etc., it will be 1! As shown in Fig. 3, bend the vibro into a shape that irradiates the laser beam in a direction perpendicular to the longitudinal direction of the holder 5, and bend the vibro into a shape that irradiates the laser beam in a direction perpendicular to the longitudinal direction of the holder 5. Just bend the vibrator like this.

In addition, as shown in FIG.
The movable pipe 10 may be attached via *b. The movable pipe 10t is attached in place of the flexible vibro, and the other structures are the same. This movable pipe 10II'
The irradiation angle of the laser beam can be adjusted by applying a certain amount of force.

With this structure, a small gap can be provided between the optical fiber 2 and the vibro to provide a passage for the assist gas. In addition, in order to cool the vicinity of the irradiation end of the optical fiber 2, which is easily exposed to high temperatures, a holder 5 is installed as shown in FIG.
A flow path 11t for flowing a cooling liquid such as water into the interior can also be provided. Furthermore, if at least the tip of the holder 5 is made black, dangerous reflection of laser light can be prevented and safety can be ensured.

If the bead for a laser scalpel device according to the present invention is used as described above, since it has a semi-flexible pipe or a movable pipe, the shape of the tip of the optical fiber and the irradiation direction of the laser beam can be changed at any time. Therefore, safe and accurate surgery can be performed. Furthermore, the holder can be cooled, and even if the optical fiber is damaged, the laser light is reflected by the inner surface of the semi-flexible pipe and there is no risk of it leaking to the outside.

[Brief explanation of the drawing]

Figure 1 and Figure 2 are cross-sectional views of a conventional hand piece for a laser scalpel device, and Figure 3 is a cross-sectional view showing an embodiment of the hand piece for a laser scalpel device according to the present invention, Figure fic4, j1
Figure 5 shows another embodiment of the handpiece for a laser scalpel device according to the present invention. 1 is a coating, 2 is a Fi optical fiber, 3 is a straight tube, 4 is a lens, 7 is an 0 ring, 8 is a cap, 9 is a ti pin, and 10 is a straight tube. It is a movable pipe with 11 channels. Patent applicant Sumitomo Electric Industries Co., Ltd. Representative Patent attorney Shibe Mitsuishi (and 1 other person) Figure 1 5 Figure 3 Figure 4 Figure 2

Claims (1)

[Claims] The tip of the optical fiber, a semi-flexible pipe or a movable pipe *! ! A hand piece for a laser scalpel device that is inserted and fixed in a holder.