JPS59108544A - Lasertreating 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 treatment device, and more particularly to a laser treatment device having an articulated manibulator.

BACKGROUND ART In recent years, lasers have been widely applied in the field of clinical medicine, and various laser treatment devices have been developed, such as a REDEMES using a Co2 laser and a hemostatic coagulation device. In such laser treatment devices, the laser beam emitted from the laser light source is generally guided to an arbitrary position via a light guiding system such as an articulated manipulator or optical fiber. It is necessary to always align the optical axis of the system with the center ray of the laser beam with high precision. However, due to its nature, laser treatment equipment is not fixed to a specific location and must be frequently transported between operating rooms or moved within the operating room. Because the light guide system is displaced into various shapes to irradiate the laser beam, it is extremely difficult to always align the optical axis of the light guide system with the center ray of the laser beam with high precision. A shift occurs between the center ray of the Rede beam and the center ray of the Rede beam.

However, in conventional laser treatment devices, even if the optical axis of the light guide system shifts, it is not known in which part of the light guide system the shift has occurred, making it extremely difficult to readjust the light guide system. Furthermore, conventionally, when using a high-power laser,
Even a slight deviation would have a large shadow qI on the affected area, which was extremely dangerous.The present invention was made to eliminate the above-mentioned drawbacks. The object of the present invention is to provide a highly safe laser treatment device whose system can be easily readjusted.

In order to achieve the above object, the present invention is characterized in that a laser beam position shift detection element is provided on the inner wall of the light pipe of the multi-joint manipulator.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 each show an embodiment of the present invention, and FIG. 1 is a diagram showing a schematic configuration of a laser treatment device, and FIG. 2 is a partially enlarged perspective view of FIG. 1. be.

In FIG. 1, reference numeral 1 is a Rade oscillator that emits a laser beam such as a CO2 laser, and reference numeral 2 is a multi-joint manipulator that guides the laser beam emitted from the Rade oscillator 1 to an arbitrary position.
is a plurality of light pipes 3a to 3f and a reflecting mirror 4.
It is composed of a to 4e. In this embodiment, ring-shaped sensors 5a to 5f are provided on the inner wall of each joint of the multi-joint manibulator 2 in the vicinity of reflective mirrors 48 to 4e, as shown in FIG. The ring-shaped sensors 5a to 5f are formed of, for example, a thermistor or the like coated with an absorber 9, and each sensor 5a to 5f is connected to a display 8 via a lead wire 6 and an amplifier 7. This indicator 8 is provided with a lamp etc. for each of the ring-shaped sensors 5a to 5f, for example, and when any one of the sensors 5a to 5f detects an abnormality, the corresponding lens lights up. It looks like this.

Reference numeral 9 is a condensing lens that focuses the laser beam within the manipulator 2 onto a desired position on the affected area, and reference numeral 10
is a power source that supplies power to the laser oscillator 1 and the display 8.

Next, the operation of the above embodiment will be explained. In a state where the optical axes of the light pipes 3a to 3f and the center ray of the laser beam are aligned, that is, in a normal state, the laser beam emitted from the laser oscillator 1 is transmitted to the ring-shaped sensors 58 to 58, as shown in FIG. It passes through the opening of the sensor and is guided to the work point without irradiating 5f. Here, if a deviation occurs in V) of the reflecting mirrors 4a to 4e for some reason, a laser beam is irradiated to the ring-shaped sensor corresponding to the reflecting mirror in which the deviation has occurred. For example, if among the ring-shaped sensors 5a to 5f, 5a and 5b are normal and an abnormal signal is output from sensor 5C, the reflecting mirror 4b
It can be detected that there is a deviation. This makes it possible to accurately determine whether or not to readjust the V) misaligned mirror among the reflecting mirrors S a -51, and even if misalignment occurs, it can be immediately corrected.

Further, according to the present device, it is also possible to immediately stop emitting the laser beam when an abnormal signal is generated from the sensor.

As described above, according to the present invention, since the laser beam detection element is provided on the inner wall of the light pipe of the multi-joint manipulator, it is possible to easily detect the optical axis deviation of the laser beam, and readjustment of the light guide system is possible. A simple and highly safe laser treatment device can be provided.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a laser treatment apparatus according to an embodiment of the present invention, and FIG. 2 is a partially enlarged perspective view of FIG. 1. DESCRIPTION OF SYMBOLS 1... Laser oscillator, 2... Multi-joint manipulator, 31-3f... Light pipe, 4a-4e... Reflection mirror, 5h-5f... Ring-shaped sensor, 7...
Amplifier, 8... Display, 9... Focusing: Beg.

Claims (1)

[Scope of Claims] (1) In a laser treatment device that guides a laser beam emitted from a laser light source to an arbitrary position via a multi-joint manipulator to treat a living body, the above-mentioned laser beam is attached to the inner wall of the light arm of the multi-joint manipulator. A laser treatment device comprising a detection element for detecting a deviation between an optical axis of a manipulator and a center ray of the rape beam. (2) The laser treatment device according to claim (1), wherein the detection element is a ring-shaped element. (3) The detection element is located near each joint of the multi-joint manipulator. A laser treatment device according to claim 1, characterized in that it is provided with a laser treatment device.