JPH0759811A - Laser medically treating device - Google Patents

Abstract

PURPOSE:To provide the laser medically treating device by which trouble for setting can be decreased at the time of setting an irradiating condition of a laser beam. CONSTITUTION:In the laser medically treating device 10 for executing a medical treatment by irradiating a lesion part of a patient with a laser beam, this device is provided with an irradiation energy setting means 18 for setting irradiation energy of the laser beam, an irradiation time setting means for setting an irradiation time of the laser beam, and an irradiation power setting means 20 for setting irradiation power of the laser beam. The laser medically treating device is further provided with a control means for setting the remaining condition by allowing it to have a relation of (irradiation energy)=(irradiation time)X(irradiation power), and setting two conditions out of the irradiation energy, the irradiation time and the irradiation power.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser treatment apparatus for irradiating a diseased part with laser light for treatment.

[0002]

2. Description of the Related Art When performing treatment with a laser treatment device,
Laser irradiation conditions must be set in advance according to the purpose of treatment. The conventional laser treatment apparatus has a configuration in which the irradiation time and the irradiation power of the laser light are set separately when setting the irradiation conditions. As far as the setting operation is concerned, the irradiation time and the irradiation power were set independently, and there was no relation between them.

Appropriate coagulation conditions in a photocoagulator for ophthalmology are appropriately determined based on the color and state of coagulation spots (coagulated tissue, so to speak, "spots"). The combination of conditions became complicated and complicated.

For example, in intraocular photocoagulation, in order to minimize damage to the affected area and its periphery (damage to layers other than the layer to be directly treated and surrounding tissues), the irradiation power is kept low and the irradiation time is extended. Then, gentle thermal coagulation is performed. On the other hand, when many laser irradiations are performed with the same irradiation energy, the operation time is shortened to reduce the burden on the patient. In this way, the irradiation power is preferentially determined in the former case, and the irradiation time is preferentially decided in the latter case.

[0005]

As described above, in the conventional laser treatment apparatus, when the laser irradiation energy is kept constant and the laser irradiation time is changed, it is necessary to change the irradiation power accordingly. It took time to set up. Also, there was a possibility that a setting error would occur at that time.

Therefore, the present invention solves the above-mentioned problems, and when any two of the irradiation energy, irradiation time and irradiation power of laser light are set, other conditions are automatically set, and the other conditions are set accordingly. An object of the present invention is to provide a laser treatment device that can save labor.

[0007]

SUMMARY OF THE INVENTION The present invention is a laser treatment apparatus for irradiating a diseased part of a patient with laser light for treatment, and an irradiation energy setting means for setting the irradiation energy of the laser light and the laser. An irradiation time setting means for setting an irradiation time of light and an irradiation power setting means for setting an irradiation power of the laser light are provided, and (irradiation energy) = (irradiation time) × (irradiation power) In summary, the laser treatment apparatus is characterized in that a control means for setting the remaining conditions by setting any two conditions among the above-mentioned irradiation energy, irradiation time, and irradiation power is provided.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a laser treatment apparatus, which can be applied to a transpupilary photocoagulator, an intraocular photocoagulator, a transscleral photocoagulator, etc. for ophthalmology.

The laser treatment apparatus 10 comprises an operating section 11 and a control section 12.

The operation unit 11 has a slit lamp and can stereoscopically observe the fundus of the eye to be examined at high magnification. The operation unit 11 includes a light guide optical system inside, and is configured to guide and irradiate a laser beam to a diseased part of an eye to be examined. The laser light emitted from the laser oscillator 13 is guided to the operation unit 11 via the optical fiber 14 and sent to the light guide optical system. The operator manually operates a manipulator (not shown) to treat the diseased part.

The control unit 12 is configured to control the laser oscillator 13 based on the input setting conditions. The control unit 12 has a control circuit 17, and the control circuit 17
The irradiation energy setting means 18 for setting the irradiation energy of the laser beam, the irradiation time setting means 19 for similarly setting the irradiation time, the irradiation power setting means 20 for similarly setting the irradiation power, and the display circuit. 21 is connected.

The display circuit 21 is a CRT display or the like, and an irradiation energy display section 21 for displaying the set irradiation energy, irradiation time, and irradiation power, respectively.
a, an irradiation time display section 21b, and an irradiation power display section 21c.

When two of the three conditions of irradiation energy, irradiation time and irradiation power are set by the setting means 18 to 20, the control circuit 17 (irradiation energy) = (irradiation time) × (irradiation The other one condition is automatically set based on the relationship of (power). The automatically set third condition is immediately displayed on the corresponding display section 21a to 21c of the display circuit 21.
The two preset conditions are also displayed on the display units 21a to 21c at the same time as the input.

The control circuit 17 sends to the laser oscillator 13 a control signal based on the three conditions of irradiation energy, irradiation time, and irradiation power set in this way. The laser oscillator 13 emits a laser beam according to the set conditions according to the control signal.

The operation unit 11 is also provided with spot size setting means (not shown) for setting the spot size of the laser beam.

Next, the operation of the laser treatment apparatus shown in FIG. 1 will be described by taking the case where it is applied to a radial pupil photocoagulation apparatus as an example.

The operator first sets the irradiation energy according to the kind of the ophthalmic disease to be treated and the state of the treatment site by the irradiation energy setting means 18. The set energy value is displayed on the irradiation energy display unit 21a.

Next, the irradiation time setting means 19 sets the laser irradiation time. The set time is displayed on the irradiation time display section 21b. At this time, the irradiation power is calculated based on the values of the irradiation energy and the irradiation time that have been set, and displayed on the irradiation power display unit 21c. The irradiation power is calculated from the above relational expression by (irradiation energy) ÷ (irradiation time).

Instead of setting the laser irradiation time, the irradiation power setting means 20 may set the laser irradiation power. In this case, the irradiation time is set based on the values of the irradiation energy and the irradiation power, and this value is set as the irradiation time display unit 2.
It is displayed in 1b.

Control signals based on these set values are sent from the control circuit 17 to the laser oscillator 13, and the laser oscillator 1
3 is driven. Then, the laser light emitted from the laser oscillator 13 is applied to the affected eye through the slit lamp.

An example of standard laser light irradiation conditions for fundus treatment such as ordinary diabetic retinopathy, branch retinal vein occlusion, and retinal hiatus is as follows.
Irradiation time of 4 joules is 0.2 seconds, irradiation power is 0.2
Watt. The spot size is 3 depending on the symptoms.
Set in the range of 00 to 500 μm.

[0022]

The laser treatment apparatus of the present invention is a laser treatment apparatus for irradiating a diseased part of a patient with laser light for treatment, and an irradiation energy setting means for setting the irradiation energy of the laser light and the laser. An irradiation time setting means for setting an irradiation time of light and an irradiation power setting means for setting an irradiation power of the laser light are provided, and (irradiation energy) = (irradiation time) × (irradiation power) Since there is provided a control means for setting the remaining conditions by setting any two conditions among the above-mentioned irradiation energy, irradiation time and irradiation power in relation to each other, , There is a clear correlation between irradiation time or irradiation power, which makes it easier to set irradiation conditions and saves time and effort. It is possible to prevent the irradiation conditions misconfigurations careless. Therefore, by using the laser treatment apparatus of the present invention, the operation time can be shortened and the operation safety can be improved.

The present invention is not limited to the above embodiment. For example, by providing a confirmation means for confirming the automatically set third condition, it is possible to double-check the set condition, and the safety of the operation can be further enhanced.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a laser treatment apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Laser treatment device 11 Operation part 12 Control part 13 Laser oscillator 14,15 Optical fiber 16 Handpiece 17 Control circuit 18 Irradiation energy setting means 19 Irradiation time setting means 20 Irradiation power setting means 21 Display circuit

Claims (1)

[Claims] 1. A laser treatment apparatus for irradiating a diseased part of a patient with laser light for treatment, and an irradiation energy setting means for setting irradiation energy of the laser light, and for setting an irradiation time of the laser light. The irradiation time setting means and the irradiation power setting means for setting the irradiation power of the laser beam are provided, and the irradiation energy is given by the relationship of (irradiation energy) = (irradiation time) × (irradiation power). A laser treatment apparatus comprising: a control unit that sets the remaining conditions by setting any two of the irradiation time and the irradiation power.