JP2813985B2 - Laser light emitting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser emitting device most suitable for medical treatment.

2. Description of the Related Art Laser light emitting devices have been increasingly used for treatment. For example, it is used for photocoagulation treatment in ophthalmic treatment.

By the way, during the treatment, the surgeon may want to know the treatment setting conditions. The treatment setting conditions are the output of the laser beam and the irradiation time.

Problems to be Solved by the Invention A conventional operator knows setting conditions in the following manner during treatment.

The operator moves the eye from the treatment affected area to the display on the operation panel, and confirms the set conditions.

Ask a nurse or the like to look at the display instead.

In such a case, it is not possible to concentrate on the treatment, and there is a possibility that an unexpected treatment accident may occur. In the case of, it is necessary to transmit the displayed value to the operator, and it is not possible to concentrate on the treatment.

On the other hand, an ophthalmic laser photocoagulation device using a slit lamp has been proposed, and the slip lamp is used for stereoscopically observing the fundus of the eye to be examined at high magnification. In this device, an in-view display device is added to a slit lamp. However, since this device is built in advance, the length becomes long and the operability is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a laser light emitting device that allows an operator to know general setting conditions at that time without leaving his / her eyes while looking at a treatment site.

SUMMARY OF THE INVENTION The present invention has a gist of the laser light emitting device described in the claims.

Means for Solving the Problem Reference is made to FIG. The laser light source 1 emits laser light for irradiating a target.

The operator sets the output and irradiation time of the laser beam for the control pulse 3 as a setting unit.

 The aiming light source 6 emits aiming light aiming at a target.

The control unit 2 adjusts the output of the laser light from the laser light source and the irradiation time according to the setting conditions of the control panel 3, and blinks the aiming light according to the setting conditions to change the setting conditions of the control panel 3. Inform

The operator can know the outline of the setting conditions by blinking the aiming light.

Example 1 Reference is made to FIG.

The laser light emitting device includes a laser light source 1, a control unit 2, a control panel 3, a shutter driving unit 4, a blinking device 5, an aiming light source 6,
It has a dichroic mirror 7, a condenser lens 8, an optical fiber 9, and a shutter 10. Numeral 11 denotes a treatment affected part irradiated with laser light.

[Laser Light Source 1] The laser light source 1 is, for example, an argon / die laser.

[Control Panel 3] The control panel 3 is a setting unit for the operator to set the output conditions of the laser light and the irradiation time of the laser light, which are the setting conditions.

[Aiming Light Source 6] The aiming light source 6 emits aiming light (aiming light) for aiming the affected area 11.

[Control Unit 2] The control unit 2 adjusts the output of the laser light from the laser light source 1 and the irradiation time according to the setting conditions set on the control panel 3. In addition, the control unit 2 flashes the aiming light in accordance with the setting condition to notify the operator of the setting condition.

The laser light source 1 is connected to a control panel 3 via a control unit 2. The shutter drive unit 4 is connected to the control unit 2.

The blinking device 5 is connected to the control unit 2. Flashing device 5
Blinks the aiming light of the aiming light source 6. Flashing aiming light 12
Is reflected by the dichroic mirror 7 and guided to the condenser lens 8. On the other hand, the laser light 13 of the laser light source 1 is
Although it is blocked by 10, when it is out of the shutter 10, it passes through the dichroic mirror 7 and reaches the condenser lens 8. The aiming light 12 and the laser light 13 that have passed through the condenser lens 8 pass through the optical fiber 9 and irradiate the affected part 11.

Operation First, on the control panel 3, the operator sets the output condition and the irradiation time of the laser beam, which are the setting conditions for the treatment. The control unit 2 controls the blinking device 5 according to the output of the set laser light.
Give an order to As a result, the aiming light blinks at a blinking speed (blinking time, ratio of on / off) corresponding to the output of the set laser light.

During treatment, the shutter 10 is retracted, and the laser light 13 of the laser light source 1 is guided to the diseased part 13 through the dichroic mirror 7, the condenser lens 8, and the optical fiber 9 for a set irradiation time. The aiming light 12 flashing simultaneously is the dichroic mirror 7
The affected part 11 is reflected through the condenser lens 8 and the optical fiber 9.
It is led to.

By doing so, the operator can see the output of the roughly set laser light without moving his or her eyes from the affected part 11 by checking the blinking aiming light guided to the affected part 11.

In the above-described example, the output of the setting laser light among the treatment conditions has been described as an example. Further, the control unit 2 controls the blinking speed of the blinking device 5 (blinking interval, ratio of lighting and extinguishing) in accordance with the set irradiation time.
, The surgeon can roughly know the set irradiation time of the laser light among the treatment conditions.

By the way, the blinking of the blinking device 5 can employ the following means. An electro-optic light modulator or an acousto-optic light modulator is used. The aiming light source 6 in this case is a lamp.
As the aiming light source 6, a light-emitting element with good response that can be electrically blinked, such as an LED or an LD, can be used. This eliminates the need for the optical modulator.

Embodiment 2 As shown in FIG. 2, the dichroic mirror 107
If the treatment laser light 13 is reflected and the aiming light 12 is transmitted, the treatment laser light can be used more effectively. This is because the reflection can efficiently reflect the laser light with a more efficient film.

A mechanical chopper or shutter other than the light modulator can be used as the blinking device.

In addition, it can be applied to a conventional photocoagulation apparatus using a slit lamp.

Effect of the Invention As described above, the treatment condition can be roughly confirmed without the operator removing the eye from the affected part. Therefore, the safety of the laser treatment can be ensured.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the laser light emitting device of the present invention, and FIG. 2 is a diagram showing a second embodiment. DESCRIPTION OF SYMBOLS 1 ... Laser light source 2 ... Control part 3 ... Control panel 5 ... Flashing device 6 ... Aiming light source

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61F 9/007 A61B 17/36 350 A61N 5/06

Claims (1)

(57) [Claims] 1. A laser light source for emitting a laser beam for irradiating a target, a setting section for setting a setting condition of an output of the laser beam and an irradiation time of the laser beam, and emitting a sighting light for sighting the target. The aiming light source to be adjusted, and the output amount of the laser light from the laser light source and the irradiation time of the laser light are adjusted according to the setting conditions of the setting unit, and the aiming light blinks according to the setting conditions to perform the setting. A laser light emitting device comprising: a control unit for informing a condition.