JPS5887887A - Laser device - Google Patents

Abstract

PURPOSE:To obtain a laser device enabling the alternate attainment of a state of low irradiation strength by continuous waves and a state of large irradiation strength by pulse waves even without displacement in distance to a part to be irradiated. CONSTITUTION:A laser oscillator 5 is fitted to the main body 4 of a device having a power source unit 1 and a control unit 2 installed therein, and an operation unit 3 conducting output adjustment, etc. provided thereon, a hand piece 8 is connected to said laser oscillator 5 through the intermediary of an attached unit 6, such as a diffraction lens, and an optical fiber 7 for CO2 laser beams, and thus a CO2 laser scalpel solidifying and destructing bio-tissue by the application of laser beams and enabling bloodless surgical operations in various fields surgery is constituted. Since laser beams from the oscillator 5 are constituted so that pulse waves of output higher than the specified output of continuous waves can be oscillated in superposition on the latter, treatments requiring different irradiation strength can be performed by a device maintained in a constant state in such a manner that the arrest of bleeding is made with the former waves while a surgical operation is made with the latter.

Description

[Detailed description of the invention] The present invention relates to a laser device.

The above devices, such as the C02 laser scalpel, continuously oscillate laser light at a relatively low output. make an incision, and
Hemostasis is achieved by moving the laser device away from the irradiated area and keeping its focus away from the irradiated area to weaken the irradiation intensity. However, since the desired irradiation intensity is obtained by adjusting the distance of the laser device relative to the irradiated area, there are many intuitive judgment factors and skill is required to handle it.

There is also a method that pulses laser light, but the peak power is too high and [1-Blood] cannot be performed, so there is still room for improvement.

In view of the above points, the present invention provides treatments that require different irradiation intensities such as incision and hemostasis for bloodless surgery as described above.
1. The purpose of the present invention is to enable the noser device to be easily operated without having to displace it far or near.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

A laser oscillator (5) is installed in the main body (4) of the device, which is equipped with a power supply section (1) and a control section (2), as well as an operation section (3) for adjusting output, etc.
5), ancillary equipment (6) such as a diffraction lens, and C02
The handpiece (8) is connected via the laser optical fiber (7).
) is connected to the C02 laser scalpel, which coagulates and destroys living tissue through laser irradiation and is capable of bloodless surgery in various surgical fields.

In the control section (2), the laser beam from the oscillator (5) superimposes a continuous wave (A) of a specific output and a pulse 7 & (B) of a higher output, as shown in FIG. It is configured to oscillate, and by irradiation with the laser light, [t1 pulse wave (Bl causes incision,
(2) The continuous wave (
It is constructed so that it can be done naturally by Al.

The operation unit (3) is configured such that the output of the continuous wave body is adjusted to, for example, 5 to 8 W, and the peak output of the pulse wave (Bl) is adjusted to, for example, 100 to 200 W, and Continuous wave (Al oscillation time (1) is 2~l Q s
ec, and the pulse wave (river oscillation time ([) is 0.1
-10 m5ec, respectively, and is configured to be able to adjust to perform incision and hemostasis well according to each surgical site.

In addition, the laser beam from the oscillator (5) is transmitted to the handpiece (8).
In addition to the above-mentioned optical fiber (7), for example, various types of joints, such as so-called articulated pipes in which pipes are connected with a reflector at the bent part so as to be relatively rotatable, can be used. transformations of the light guide path (
7).

In addition, the present invention includes peeling of a synthetic resin material covering a steel wire, for example, by preheating by irradiation with the continuous wave +A+ and cutting by irradiation with a pulse wave (B) after preheating.
It can also be applied to various types of processing, such as dividing substrates and alloying metal surfaces in the production of integrated circuits. The irradiating member side may be moved, and the part that irradiates the laser beam is collectively referred to as a light projecting part (8).

Further, as the laser oscillator (5) in the present invention, CO
Limited to 2 lasers, such as argon laser or YAG laser,
Can be applied to various things.

As described above, according to the laser device of the present invention, a state of low irradiation intensity due to continuous waves and a state of high irradiation intensity due to pulsed waves can be alternately obtained without displacing the irradiated part in distance or proximity. The device can now be used to perform treatments that require different irradiation intensities, such as hemostasis using the former and incision using the latter, while maintaining the device at a constant level, making it easy to operate even for non-experts.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall schematic perspective view of a C02 laser scalpel, and FIG. 2 is a graph showing the oscillation state of laser light. (5)...Laser oscillator, (7)...Light guide path, (8
)...Light projection part. Figure 1 5 6 7 3 1 \

Claims (1)

[Claims] 1. A laser device characterized in that a laser oscillator connected to a light projecting part via a light guide is configured to oscillate a continuous wave of a specific output by superimposing a pulse wave of a higher output.