JPS5889278A - Laser medical 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 laser medical device using a semiconductor laser, and aims to provide a laser medical device that can irradiate high-power laser light.

It has been reported that symptoms such as stiff shoulders and stiff shoulders can be treated by irradiating the human body with laser light.

In a conventional medical device using laser light, for example, as shown in FIG. 1, laser light is extracted from a single laser or solid-state laser device 1 through an optical fiber 2 and irradiated onto an affected area.

However, this device has the disadvantage that the laser device is large and the main body and irradiation part are separated, making it inconvenient to handle. In order to solve this drawback, a health/treatment device has been proposed that uses a compact, lightweight semiconductor laser with low power consumption to integrate the laser beam irradiation part and the main body, making it a handy type that is easy to handle. However, semiconductor lasers generally have the disadvantage that they only produce an output of several tens of mW and require a long irradiation time (treatment time). Also, even when laser light is focused and used to increase the power density of light,
The drawback was that it was difficult to irradiate the entire affected area. The present invention aims to eliminate the above-mentioned drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, semiconductor lasers 3a and 3b.

3c, ad are arranged in a ring shape, and a condensing lens 4a.

4b, 4C, and 4d are used to focus the light on the center of the circle.

A reflector 6 having a pyramidal structure is arranged at the center of the circle, the direction of travel is bent at a nearly right angle, and the laser spot is focused again using the condensing lens 6, so that the laser spot can be imaged closely. In such a configuration, the output is quadrupled if the loss of the optical system is ignored. Semiconductor lasers have a small emission spot,
Since the laser body is larger than the spot diameter, it is not possible to reduce the spot spacing by arranging the lasers in the same direction. According to this device, a plurality of laser spots can be arranged close to each other. The pyramid-shaped optical element 6 may be one shown in FIG. 3, which utilizes the full recoil of the prism 7.

As described above, according to the present invention, the laser beams from a plurality of semiconductor lasers can be focused at one point, so it is possible to obtain laser beams with high output, and it is possible to obtain a compact laser medical device. .

[Brief explanation of drawings]

Figure 1 is a side view of a conventional laser medical device, Figure 2 is a side view of a conventional laser medical device;
The figure is a perspective view of the main parts of a laser medical device according to an embodiment of the present invention, and FIG. 3 is an original view of parts used in the device. 3a, 3b, 3c, 3da--see semiconductor laser, 4
a, 4b, 40, 4d-, -, -, condenser lens, 6... reflector, 6... condenser lens.

Claims (1)

[Claims] It is characterized by adding one optical element that converts the laser light from a plurality of semiconductor lasers into a direction of propagation of the light almost at right angles, and combining the output light of this optical element and irradiating it as medical laser light. Laser medical equipment.