JPS6034248Y2 - Adapter for measuring the output of laser surgical equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an adapter for measuring the output of a laser surgical device that performs surgery using laser light.

Usually, a laser surgical device includes a laser output measuring section that measures the output output of a light guiding device such as a laser probe.

This laser output measuring section is provided with an insertion hole into which the emitting tip of the light guiding device is inserted, and a light receiving element is installed in the insertion hole.

When measuring the actual output power of the light guide device used, the output tip of the light guide device is inserted into the insertion hole, and the intensity of the emitted laser light is measured by a light receiving element.

At this time, the emission tip of the laser probe may be defective or become contaminated during use.
The output tip of the laser probe sometimes emitted black soot and burned.

In this case, the soot adheres to the beam splitter provided in the laser output measurement section, and if the beam splitter is irradiated with laser light in this state, there is a problem that the beam splitter will be destroyed.

If the beam splitter is destroyed, it becomes impossible to measure the output, so it is necessary to replace the beam splitter, which is very troublesome and time-consuming, and there is a problem that it cannot be used immediately in an emergency.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is that even if the output end of a light guide device such as a laser probe burns during output measurement, the soot generated at that time will be removed from the laser of the laser surgical device. An object of the present invention is to provide an output measurement adapter for a laser surgical device that can prevent contamination of an optical member of an output measurement part and prevent the optical member from being destroyed by laser light.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 in FIG. 1 is a main body of a laser surgical device 2, and a laser oscillation device (not shown) is installed inside this main body 1.

An operation panel 3 formed on the upper front surface of the main body 1 is provided with a connection port 6 into which a connector 5 of a laser probe 4, for example, is inserted as a light guide device for guiding laser light to a region to be treated.

Furthermore, the operation panel 3 is provided with a laser output measurement section 7, a laser output adjustment knob 8, and a laser output display section 9.

The oscillation operation of the laser oscillation device is controlled by a foot-operated switch 10, and the oscillated laser beam is transmitted through the connection port 6.
The laser beam is sent to a laser probe 4 attached to the laser probe 4.

Further, this laser probe 4 can be introduced into the patient's body cavity through the insertion channel 12 of the endoscope 11.

Thus, the laser probe 4 can irradiate the treatment target site within the body cavity with laser light.

On the other hand, the laser output measuring section 7 is constructed as shown in FIG.

That is, this laser output measuring section 7 is provided with a cylindrical adapter receiver 13 that opens on the front surface of the operation panel 3, and this adapter receiver 13 can accommodate various measurement adapters 1 to be described later.
4 can be inserted in common.

As shown in FIG. 3, a flange-shaped abutment part 15 is provided on the periphery of the inner opening end of the adapter receiver 13, and the tip of each inserted measurement adapter 14 is placed on the abutment part 15 for positioning. It is supposed to be done.

Further, a locking groove 16 consisting of an annular groove along the circumferential direction is formed in the middle inner surface of the adapter receiver 13, and a C-ring fitted on the outer periphery of the insertion end of the measurement adapter 14 is formed in the locking groove 16. 17, the inserted measurement adapter 14 is held in a fixed position against the abutting portion 15 without wobbling.

As shown in FIG. 3, the measurement adapter 14 is formed into a cylindrical shape having an inner hole 18 for inserting and holding the emission tip 4a of the laser probe 4, and further includes:
A glass filter plate 19 is airtightly attached to the inner opening end as a closing member transparent to the laser beam, and the output end side of the inner hole 18 is hermetically sealed. ing.

Further, the glass filter plate 19 is connected to the measurement adapter 14.
It is held down by a holding ring 21 that is screwed onto the outer periphery of a small diameter portion 20 formed at the tip of the holding ring 21 .

Note that an antireflection film is coated on both surfaces of this glass filter plate 19.

The adapter receiver 13 is connected to the support member 2 as shown in FIG.
The attachment is fixed to the main body 1 via 7.

Further, inside the adapter receiver 13, the beam splitter 28 and the output detection element 30 of the output light receiving section 29 are arranged in sequence on the central extension line thereof.

The beam splitter 28 is made of, for example, a half mirror on which a vapor-deposited film is formed, and is configured to transmit a portion of the laser beam emitted from the laser probe 4 as it is, and reflect the remaining laser beam to the side.

Note that this beam splitter 28 is fixedly attached to the main body 32 of the output light receiving section 29 via a receiver member 31.

Further, an optical attenuator 33 is installed on the side of the beam splitter 28 to receive the laser beam reflected laterally, and this optical attenuator 33 absorbs the laser beam reflected laterally. There is.

Note that this optical attenuator 33 is connected to the main body 3 of the output light receiving section 29.
The mounting is fixed together with 2 by a support stand 34.

The output detection element 30 receives the laser light transmitted through the beam splitter 28 and converts it into an electrical signal.

The electrical signal converted by this output detection element 30 reaches a connector 36 via a lead wire 35, and is further sent to a signal processing section (not shown) via a lead wire 37 connected to this connector 36.

This signal processing section is equipped with an A/D converter, an amplifier, etc. having an amplification factor corresponding to the division ratio of the beam splitter 28, and outputs a value corresponding to the output power of the laser beam emitted from the laser probe 4. It is designed to be displayed on the laser output display section 9.

Therefore, when measuring the output power of a laser beam emitted from a laser probe 4 to be used in this laser surgical device 2, for example, a measurement adapter 14 that is compatible with the laser probe 4 is selected, and the output power is Insert the tip 4a and abut it against the glass filter plate 19)
Position.

Furthermore, this measuring adapter 14 is inserted into the adapter receiver 13 as shown in FIG.
When the tip of the C-ring 17 hits the abutting portion 15, the C-ring 17, which tends to expand elastically, falls into the locking groove 16 and is locked and fixed in that position.

Note that even when using another laser probe 4, a measurement adapter 14 corresponding to the measurement adapter 14 is selected and attached to the adapter receiver 13 via this.

Therefore, each of the emitting tips 4a can be accurately moved to a fixed position without wobbling.

On the other hand, after mounting in this manner, the laser oscillation device is operated to oscillate, and a portion of the laser light emitted from the emission tip 4a of the laser probe 4 is reflected by the beam splitter 28 and enters the optical attenuator 33. is absorbed.

Further, the remaining laser light passes through the beam splitter 28 as it is, enters the output detection element 30 of the output light receiving section 29, and is converted into an electrical signal.

This electrical signal is sent to the signal processing section via the lead wire 35, connector 36 and lead wire 37, and is processed in this signal processing section into a display signal with a value corresponding to the output of the laser beam, and the value is displayed on the laser output display. Displayed in Section 9.

If the emission tip of the laser probe 4 is defective or contaminated during use, it may burn out while measuring the output of the laser beam, but the soot generated at that time will be removed from the glass filter plate 19. It is blocked by the beam and does not go beyond that to the beam splitter 28 side.

However, it adheres to the glass filter plate 19, and therefore,
This glass filter plate 19 may be damaged by the laser beam, but in this case, simply by replacing the measuring adapter 14, it can be used again immediately.

As explained above, according to the present invention, even if the output end of a light guide device such as a laser probe burns, the soot generated at that time can be prevented from contaminating the optical member of the output measurement unit.
This can prevent the optical member from being destroyed by the emitted laser light.

Therefore, there is no need to take time to repair or replace the optical member, and no situation arises where output measurement cannot be performed in an emergency.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the laser surgical device, Fig. 2 is a side sectional view of the vicinity of the laser output measurement section, and Fig. 3 shows the laser probe connected to the laser output measurement section. FIG. 2... Loser surgical device, 4... Laser probe, 4a... Emission tip, 7...
Laser output measurement section, 13...adapter holder, 1
4...Measurement adapter, 18...Inner hole, 19...Glass filter plate.

Claims (1)

[Scope of utility model registration request] An output measurement adapter that is attached to a laser output measurement unit of a laser surgical device, inserts an output tip of a light guide device, and positions the output tip in the laser output measurement unit,
It has an inner hole into which the emission tip of the light guiding device is inserted, and a closing member transparent to the laser beam is provided at the emission side tip of the inner hole to seal the emission end side of the inner hole. Features: Adapter for measuring the output of laser surgical equipment.