JPS5869555A - Handpiece for laser knife - 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, which is the working end, of a so-called laser scalpel device that performs surgical treatment using a laser beam, which is directly manufactured by a 7M11ff person.

In particular, it relates to a handpiece for a C02 laser scalpel.

The laser scalpel device 1 guides a laser beam generated by a laser oscillator to the treatment area through an articulated light guide path or a fiber temple, and focuses the beam onto the target tissue using a light focusing device such as a lens in a holding mechanism section called a handpiece. This is a surgical device that performs incision of tissue or hemostasis/coagulation. FIG. 1 is a sectional view of the tip of a conventional handpiece for laser scalpel.

The working laser beam 1 is focused by a light receiving lens 2 within the handpiece body 3. An attachment 4 is fitted to the tip of the handpiece main body 3, and its tip is on a plane 1f1110 that is perpendicular to the axis of the laser beam and forms the focal point of the laser beam. By operating the handpiece while bringing the tip of the attachment 4 into contact with the target tissue, the tissue can be incised at the focal point of the powerful laser beam.

At a position where the laser beam spreads outside the focal point, it is possible to perform hemostatic operations by imposition and tissue coagulation using a laser beam with a relatively low energy density layer. During actual treatment, incision and hemostasis may be used depending on the situation. In particular, CO and laser beams have a wavelength of 10.6 μm and have a large absorption coefficient for water.

Most of the energy is absorbed by the moisture within the surface tissue, resulting in transpiration of one tissue, making it suitable for tissue incision. In addition to this reno incision, the microvessels on the incision surface are coagulated, so a bloodless hand 11ir is possible, but 0.5 m
If the area is thicker than this, coagulation cannot be achieved and bleeding will occur. Once bleeding occurs, even if an out-of-focus laser beam is used, the leaked surface and energy will be absorbed, making it impossible to stop the bleeding. In such cases, conventional laser scalpel surgery uses other hemostatic means, ligation of blood vessels, or electric scalpel. Therefore, the characteristics of the laser scalpel are unique.

There are disadvantages in that the treatment becomes complicated and the person receiving the treatment is exposed to danger from electricity.

An object of the present invention is to provide a handpiece for a laser scalpel that can eliminate the above-mentioned drawbacks and improve hemostasis ability.

In order to achieve the above object, the laser scalpel handpiece of the present invention has the following features:
The device is characterized in that the member that transmits the laser beam a is attached so that it can be freely inserted and removed. For incision, a normal laser beam is used, and when hemostasis is required, the member is repositioned within the optical path, the tip of the shank member is pressed against the target area with a handpiece, and the laser beam is irradiated. The energy of the laser beam that passes through the member performs coagulation and hemostasis at the target site. Due to the contact of the members, blood clots are expelled, and blood leakage is suppressed by compression of the blood vessels (3). Therefore, the W li! Il ability is 1.
−j is praised.

The present invention will be explained in detail below with reference to Examples.

FIG. 2 is a sectional view showing an embodiment of the handpiece for laser scalpel according to the present invention, and FIG. 3 is a diagram showing the external appearance of the embodiment. The light is directed onto the focal plane 10 by the lens 2 .

A cylindrical laser beam transmitting member 5 according to the present invention is attached to the bead main body 3 by a mounting member 6 at the tip of the focal point of the laser beam. As shown in FIG. 3, the mounting member 6 includes a mounting arm 61, a focus indicating arm 62 coupled to one end of the mounting arm, and a ring-shaped end ' provided at the other end of the mounting arm 61.
63, and these are integrally formed. The mounting arm 61 and the focus indicating arm 62 are
It is formed so as to be parallel to the 1lI line Q, or to be inclined inwardly with the 1lI line Q, and to form a cross-shaped shape in which the two are connected. The end plate 63 is provided substantially perpendicularly to the mounting arm 61,
It is arranged perpendicular to the axis of the laser beam 1, -Q. and,
The attachment member 6 is rotatably attached to the handpiece main body 3 with screws 64 at the joint between the attachment arm 61 and the focus 1 indicator arm 62. A cylindrical transparent member 5 is provided in the central opening of the end plate 63. Note that the mounting arm 61 is formed to a length such that the transmitting member 5 is located beyond the focal point of the laser beam 1,
The tip of the focus indicating arm i2 is at the focal plane 10 of the laser beam 1.
It is formed to a length that indicates. The laser light transmitting member 5 is suitably made of germanium or zinc selenide, for example, for a 1 l-fCO2 laser beam. Further, it is desirable to apply an antireflection film to the laser incidence surface 5a. When performing complete coagulation and hemostasis, the attachment member 6 is rotated so that the transparent member 5 is the focal point of the laser beam; IIX
The distal end 5b of the laser beam transmitting cap 5 placed near the bleeding site is pressed against the bleeding site and irradiated with laser light to perform coagulation and hemostasis.

FIG. 3 shows a state in which a treatment is performed on a sunspot area using the non-dope piece of this example. Rotate the mounting arm 6 to adjust the focus direction arm 6.
The tip of the lens 2 is placed on the focal plane 110 so as to point to the focal plane.

The tip of the eye is brought into contact with the tissue and a laser beam is irradiated to make an incision. If the position of the attachment arm is properly adjusted, the operations of incision of one tissue and hemostatic coagulation can be easily repeated.

FIG. 4 shows another embodiment of the invention. An attachment 4, which is the same as that shown in FIG. 1, is fitted into the handpiece base 3. A hole 51 that fits into the tip of this attachment 4
A laser beam transmitting member 5 is attached to a holding arm 8 that rotates 1w. The holding arm 8 is an L-shaped member with one end formed in a rod shape and the other end formed in a link shape. When the holding arm 8 provided in the opening of the section is attached to the attachment 4, the transparent member 5 is located at the same position as in FIG. 3, and the same effect is obtained.

According to this configuration, the present invention can be realized in one woman's training, although there is an additional cost, and it can be immediately applied to a conventional handpiece for a laser scalpel.

As described above, according to the present invention, in laser scalpel surgery, by fully compressing the tissue during hemostatic coagulation operation, the performance can be improved.

The scope of application of laser scalpel surgery can be expanded.

[Brief explanation of drawings]

Fig. 1 is an IAjr m diagram of the tip of a conventional knife bead for laser scalpel. Fig. 2 is a sectional view of the tip of a knife piece according to the present invention. FIG. 4 is a diagram showing another example of actual flow of the present invention. Agent Patent Attorney Toshiyuki Usuda χ 1 Cause 41

Claims (1)

[Claims] A handpiece for a laser scalpel, characterized in that a member that transmits the laser beam is provided in the vicinity of the focal point of the working laser beam so that the member can be moved in and out.