JP6860280B2 - High power carbon dioxide laser device - Google Patents

Description

The present invention relates to a high-power carbon dioxide laser device. Specifically, the affected part is charred by injecting a fluid composed of water and air together with irradiation of a high-power carbon dioxide laser beam to an affected part such as a toothpaste. The present invention relates to a high-power carbon dioxide laser device that suppresses heat degeneration and enhances treatment efficiency such as incision of an affected area.

Generally, the carbon dioxide laser light emitted from the carbon dioxide laser device toward the affected area has a higher thermal energy per unit area than other types of laser light. For example, incision of the gingiva, which is the affected area, and sterilization in the oral cavity. , Is often used for blood clots, etc.

Patent Document 1 describes, as a technique related to the present invention, a chip main body that is connected to a handpiece and irradiates a therapeutic laser beam having high absorption characteristics for water, and a chip tip that is connected to the chip main body. In the laser irradiation chip provided with the above, the chip main body includes a fiber for guiding the therapeutic laser, a water flow path, and an air flow path, and the tip tip is a connecting portion with the chip main body. A water conduction path communicating with the water flow path of the chip body, an air conduction path communicating with the air flow path of the chip body, a fiber guide portion through which the tip side portion of the fiber can be inserted, and water air. A mixing chamber is provided, and water and air from the water conduction path and the air conduction path are mixed in the water-air mixing chamber, and the mixed mist of water and air is mixed from the injection end in the irradiation direction of the treatment laser beam, and the treatment is performed. A laser irradiation chip configured to be ejected substantially in parallel with a laser beam for use is disclosed.

However, in Patent Document 1, the invention according to the claim is limited to a laser irradiation chip having a mechanism for generating a mixed mist of water and air.

Further, in the embodiment of Patent Document 1, as a laser irradiation source, Er: YAG laser, CO ₂ (carbon dioxide) laser, Er. Cr: YSGG laser and Ho: YAG laser are mentioned, and further, as [effect of the invention], it is described that "a water film is formed and efficient cutting is performed".

In the case of Er: YAG laser, there is an explanation of the principle that cutting is performed by reacting with water to cause an explosion, and it is unknown whether this is the purpose of cooling the affected area.

_{Further, in the case of a low-power CO 2} laser used in the dental field, energy is absorbed by the water film, which does not lead to good cutting. It only has the effect of cooling the affected area, and the formation of a water film is essentially unnecessary.

Further, in the case of the low-power CO ₂ laser of Patent Document 1, no clear reason for improving the cutting efficiency by spraying the mixed mist is not disclosed.

In a low-power (for example, 10 W or less power) CO ₂ laser device used in the dental field, cooling only with air is sufficient, and cooling by spraying mixed mist is too cold, or due to energy absorption by water. I couldn't get the incision ability I expected.

For the above reasons, it is considered that there is no device that uses a mixed mist of water and air in combination in a CO _{2 laser device including a low power CO 2 laser device.}

Patent Document 2 describes a laser treatment apparatus including an Elbium-Yag laser light source, a handpiece that directs the laser light toward the affected area, and a light guide fiber that guides the laser light emitted from the laser light source to the handpiece. , A laser treatment apparatus including a means for supplying a mixed fluid of a gas and a liquid in a sprayed state to an affected area irradiated with a laser beam is disclosed.

However, Patent Document 2 relates to a laser treatment apparatus including an erbium-yag laser light source, and does not disclose an apparatus in which a mixed mist of water and air is used in combination in a _{CO 2 laser apparatus.}

Japanese Unexamined Patent Publication No. 2013-226274 Japanese Unexamined Patent Publication No. 7-51287

The problem to be solved by the present invention is that the affected area is irradiated with a high-power carbon dioxide laser beam and a fluid consisting of water and air is injected to suppress the charring and thermal degeneration of the affected area. The point is that there is no high-power carbon dioxide laser device capable of improving the treatment efficiency such as incision of a desired part of the region.

The present invention is a high-power carbon dioxide laser device that irradiates a high-power carbon dioxide laser beam from the tip of the handpiece toward the affected area, and the handpiece injects a fluid composed of water and air toward the affected area. The most important feature is to have a water flow path and an air flow path.

The invention according to claim 1 is a handpiece that irradiates a carbon dioxide laser beam from the tip toward the affected area of the affected area, a carbon dioxide laser oscillating unit that outputs a high-power carbon dioxide laser light, a water tank, and an air supply. A high-power carbon dioxide laser device including a source is configured, and the handpiece is provided with a light guide path for guiding carbon dioxide laser light from the carbon dioxide laser oscillating unit, and a water flow path having one end connected to the water tank. The other end of the handpiece is connected to the handpiece, and the air flow path to which one end is connected to the air supply source is connected to the handpiece, and carbon dioxide laser light is irradiated from the tip of the handpiece toward the affected area. A height configured so that water and air from the water tank and the air supply source can be ejected from the tip of the handpiece via the water flow path and the air flow path in combination with the irradiation of the carbon dioxide laser light. In the output carbon dioxide laser device, the handpiece includes an irradiation means for irradiating a high output carbon dioxide laser light of 15 to 25 W oscillated from the carbon dioxide laser oscillating unit toward the affected area, and the 15th. Injection means for injecting a mixed mist of water and air from the water tank and the air supply source toward the affected area region through the water flow path and the air flow path in combination with irradiation of a high-power carbon dioxide laser light of ~ 25 W. In combination with irradiating the 15 to 25 W high-power carbon dioxide laser light for the purpose of incising or evaporating the affected area with the handpiece irradiating means, the handpiece jetting means While injecting a mixed mist of water and air for the purpose of efficient incision or maintenance promotion of evaporative action by irradiating high-power carbon dioxide laser light of 15 to 25 W at the time of incision or evaporation by the irradiation means of the handpiece. By providing a control unit that controls the occurrence of charring and thermal degeneration of the affected area in the affected area irradiated with the high-power carbon dioxide laser light, the handpiece has a height of 15 to 25 W. By combining the output carbon dioxide laser light irradiation means and the water and air mixed mist injection means, sufficient energy is transmitted to the affected area at the time of incision of the affected area, and the affected area is kept cooled, so that the affected area is kept cool. It is characterized in that it is configured so as to realize an efficient incision or evaporative action while suppressing the occurrence of charring and heat degeneration of the affected area and to improve the treatment efficiency for the affected area. 15-25W By irradiating the affected area with the high-power carbon dioxide laser light of the above, the treatment efficiency of the incision and evaporation is accelerated by improving the incision or evaporative action, and the high-power carbon dioxide laser light of 15 to 25 W is improved. The treatment efficiency by the irradiation of the laser is promoted by suppressing carbon dioxide and thermal degeneration of the affected tissue in the affected area by means of injecting a mixed mist composed of water and air provided with the handpiece into the affected area while mitigating the thermal effect. It is possible to provide a high-power carbon dioxide laser apparatus capable of performing.

According to the second aspect of the present invention , the light guide path for guiding the high-power carbon dioxide laser light of 15 to 25 W oscillated from the carbon dioxide laser oscillating unit of the irradiation means of the handpiece reflects the laser light to each joint. The light guide path made of fibers in the irradiation means for irradiating the high-power carbon dioxide laser light of 15 to 25 W of the handpiece is characterized by being configured by a manipulator provided with a mirror for causing the laser light. Since the transmission loss increases, the transmission efficiency can be improved by using the manipulator, and the action and effect of the irradiation means of the handpiece can be improved, and the high-power carbon dioxide laser apparatus according to claim 1 can be improved. The action and effect of can be appropriately achieved.

According to the third aspect of the present invention , the handpiece is detachably attached to the handpiece main body and the handpiece main body with a handpiece tip having a head attached to the tip, and on the outer periphery of the handpiece tip. The other ends of the water flow path and the air flow path to which one end is connected are detachably attached to the water tank and the air supply source by an attachment such as a binding belt, and water is attached from each open end toward the affected area. It is characterized in that the injection means of the handpiece is configured by forming so that a mixed mist of and air can be injected, and the configuration of the injection means added to the irradiation means in the handpiece is configured. The action and effect according to claim 1 or 2 can be achieved while simplifying.

In the invention according to any one of claims 1 to 3, the carbon dioxide laser light output is set to a high output of 15 W to 25 W, and the transpiration and thermal incision of the affected area are suppressed to exert a thermal effect. It is possible to provide a high-power carbon dioxide laser device capable of increasing the treatment efficiency of incision and evaporation of a target affected area while relaxing.

FIG. 1 is a schematic configuration diagram of a high-power carbon dioxide laser apparatus according to an embodiment of the present invention. FIG. 2 is a schematic front view showing an example of a handpiece that irradiates the affected area with carbon dioxide laser light in the high-power carbon dioxide laser device according to the present embodiment and injects a fluid composed of water and air onto the affected area. FIG. 3 is a schematic front view of a handpiece tip portion in the handpiece shown in FIG. FIG. 4 is a schematic cross-sectional view of the handpiece shown in FIG. FIG. 5 is a schematic front view showing a handpiece main body, a joint member, and an inner cylinder in the high-power carbon dioxide laser apparatus according to the present embodiment. FIG. 6 is a schematic perspective view showing a handpiece tip portion to which a water flow path and an air flow path are added in the handpiece according to the modified example of this embodiment. FIG. 7 is a schematic explanatory view conceptually showing the formation forms of a transpiration region, a carbonized layer, a protein coagulation layer, and a thermal layer when a high-power carbon dioxide laser beam is applied to an affected region of a living body. FIG. 8 is a schematic explanatory view conceptually showing the energy distribution of high-power carbon dioxide laser light irradiated to the affected area of the living body in cross-sectional form and perspective view form. FIG. 9 is a schematic explanatory view conceptually showing the relationship between the high and low energy of the carbon dioxide laser light and the degree of difficulty in forming the carbonized layer in the affected area irradiated with the high-power carbon dioxide laser light. FIG. 10 shows the high and low energy of the carbon dioxide laser light when irradiating the affected area with high-power carbon dioxide laser light and forming a film with a fluid (water) in which water and air are mixed and mist-like. It is a schematic explanatory drawing which conceptually shows the region effective for transpiration and the region where a carbon dioxide layer is difficult to form according to the above.

The present invention aims to improve treatment efficiency such as incision of a desired part of the affected area while suppressing charring and thermal degeneration of the affected area, and aims at high-power carbon dioxide laser light from the tip of the handpiece toward the affected area. The handpiece is provided with a water flow path and an air flow path for injecting a fluid composed of water and air toward the affected area, and the output of the carbon dioxide laser light is high. It is 15 W or more, and is realized by a configuration in which the water flow path and the air flow path are provided inside the handpiece, or the injection end side of the water flow path and the air flow path is detachably provided at the tip of the handpiece.

The high-power carbon dioxide laser apparatus according to the embodiment of the present invention will be described in detail below with reference to the drawings.

First, referring to FIGS. 7 to 10, in the high-power carbon dioxide laser apparatus 1 according to the present embodiment, irradiation of the affected portion with carbon dioxide laser light L and injection of a fluid composed of water and air onto the affected portion are performed. The principle of changes in the affected tissue in the affected area due to the combination of the above will be explained.

Since most of living tissues such as gum tissue are water, the wavelength of carbon dioxide laser light L (for example, 10.6 μm), which is said to have a large thermal energy per unit area, acts effectively. ..

As conceptually shown in FIG. 7, when the carbon dioxide (CO ₂ ) laser beam L is irradiated to the affected area 51 such as the gum tissue of a living body, the irradiated area 51 becomes a transpiration area 52 in a certain range. The carbon dioxide layer 53, the protein coagulation layer 54, and the thermal layer 55 are distributed on the outside of the carbon dioxide layer 53.

In this case, the affected area 51 where energy per unit area above a certain level is not applied does not lead to evaporation.

It is difficult to define the amount of energy to evaporate because the change varies depending on the type of affected cell, such as the amount of water and the thickness of the cell membrane, and the change is not uniform.

Considering the energy distribution (Gaussian distribution) of the carbon dioxide laser light L in the above case, this can be expressed as conceptually shown in FIG.

In the left column of FIG. 8, the horizontal axis conceptually represents the distance element of the affected area 51 centered on the evaporation region 52, and the vertical axis conceptually represents the high and low energy E of the carbon dioxide laser light L.

Further, in the right column of FIG. 8, the energy distribution of the carbon dioxide laser light L and the distribution of the evaporation region 52, the carbonized layer 53, the protein coagulation layer 54, and the thermal layer 55 are conceptually represented in a perspective view.

That is, the central portion where the energy of the carbon dioxide laser light L is large corresponds to the evaporation region 52, and the hem portion where the energy is small corresponds to the carbonization layer 53, the protein coagulation layer 54, and the thermal layer 55.

In this way, when tissue evaporation (in the case of laser light, the same applies to incision), the carbonized layer 53, the protein coagulation layer 54, and the thermal layer 55 are formed in a region where the input energy does not reach evaporation.

More specifically, when the affected tissue in a certain area evaporates, a large amount of heat is removed together with the evaporated tissue, but some remaining energy becomes heat, and a thin carbonized layer 53 is formed on the surface of the remaining affected tissue. And the protein coagulation layer 54 is formed, and the thermal layer 55 is further formed on the outside thereof.

By the way, in the case of the high-power carbon dioxide laser light L, if high energy is applied in a short time, the carbonized layer 53 is generated less even with the same evaporation (central region), but the center corresponding to the low energy portion of the carbon dioxide laser light L. In the outer region of the region, the carbonized layer 53 is likely to be formed, as conceptually shown in FIG.

As described above, when the affected tissue evaporates, a large amount of heat flies away together with the evaporated tissue, but some remaining energy becomes heat, and a thin carbonized layer 53 is formed on the surface of the remaining affected tissue. Because.

In the embodiment of the present invention, a film of fluid (water) formed into a mixed mist is formed by irradiating the high-power carbon dioxide laser light L from the high-power carbon dioxide laser device 1 and using water and air in combination. Carry out a combination with.

As a result, as conceptually shown in FIG. 10, the central portion irradiated with the high-power carbon dioxide laser light L has a high energy, so that the water film evaporates and the affected tissue is also evaporated. it can.

On the other hand, the low-energy carbon dioxide gas laser beam L central portion which is irradiated from the outside of the affected area 51, much of its energy by the water of the film is absorbed, leaving the energy enough to carbonize the woven affected area set in the area Since there is no carbonized layer 53, it becomes difficult to form the carbonized layer 53.

Even at this stage, water in the form of a mixed mist is supplied, and the irradiation of the carbon dioxide laser light L continues, so that cooling and transpiration occur continuously, and as a result, heat accumulation is small and transpiration occurs even if it is continuous. Is possible.

Thus, Oite the affected area organization of the affected area 51, as schematically shown in FIG. 10, the evaporation generation of carbide layer 53 is small can be realized (incision) state.

As described above, by combining a high-power carbon dioxide laser device 1 having an output of carbon dioxide laser light L of, for example, 15 W or more with a spray of a mixed mist of water and air, sufficient energy is provided at the time of incision in the affected area 51. By suppressing the occurrence of carbon dioxide and thermal degeneration of the affected area tissue while maintaining the cooling state in the affected area 51, an efficient incision or evaporative action can be realized, and as a result, the efficiency of treatment for the affected area 51 can be realized. It is possible to raise it.

The output of the carbon dioxide laser light L of the actual high-power carbon dioxide laser device 1 is set to, for example, 15 to 25 W.

Next, a specific configuration example of the high-power carbon dioxide laser apparatus 1 according to this embodiment will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1, the high-power carbon dioxide laser device 1 according to the present embodiment is built in, for example, a device main body 42 configured on a rectangular box shape and the device main body 42, and the high-power carbon dioxide laser device 1 is installed. The control unit 43 that controls the entire device, the carbon dioxide laser emitting unit 44 that outputs a high output (for example, 15W to 25W) carbon dioxide laser light L at a wavelength of 10.6 μm, and the device main body 42 are separate from each other. The carbon dioxide laser is connected between the handpiece 5 shown in FIG. 2 and the carbon dioxide laser transmitting unit 44 and the handpiece 5 which are configured to irradiate the carbon dioxide laser light L from the tip toward the affected area. A light guide path 45 made of a manipulator or fiber that guides the carbon dioxide laser light L from the transmission unit 44 to the handpiece 5, and an operation display unit 46 that displays various operation inputs and information necessary for the operation of the apparatus main body 42. When, with the interior in the apparatus main body 42, a water tank 47 the water and the housing for injecting toward the affected area, while being furnished to the apparatus main body 42, air (pressure for injecting toward the affected area An air supply source 48 made of an air compressor or the like that generates air), a water flow path 49 made of, for example, a pipe material having one end connected to the water tank 47 and the other end connected to the handpiece 5, and the air supply source. It has an air flow path 50 made of, for example, a pipe material, one end of which is connected to 48 and the other end of which is connected to the handpiece 5.
In the case of high-power laser light, in the case of the light guide path 45 made of fiber, the transmission loss of the laser light increases. Therefore, it is better to use a manipulator provided with a mirror that reflects the laser light at each joint. It has the advantage of being better than the case.

As shown in FIGS. 2 to 5, the handpiece 5 is configured such that the handpiece main body 2 and the handpiece tip portion 3 having the head 25 attached to the tip thereof can be attached and detached.

The handpiece main body 2 is formed in a tubular shape, and the outer periphery thereof functions as a main body side grip 4.

A joint member 11 is arranged on the tip end side of the handpiece main body 2, and a lens 8 that collects laser light is fixed to the joint member 11 by a lens holder 9 in a cartridge 7. I am wearing it.

On the tip end side of the joint member 11, an inner cylinder 12 constituting the tip portion 3 of the handpiece and an outer cylinder 13 located outside the inner cylinder 12 are arranged.

The inner cylinder 12 forms a light guide path 32 for the carbon dioxide laser light L transmitted in the handpiece 5.

Further, the inner cylinder 12 has a shape in which the outer diameter is gradually reduced toward the tip, for example, in four steps.

On the other hand, the outer diameter of the outer cylinder 13 is formed to have a diameter larger than the outer diameter of the inner cylinder 12, and a gap, that is, a fluid flow path 14 is formed between the outer cylinder 13 and the outer diameter of the inner cylinder 12. There is.

Further, the outer peripheral portion of the outer cylinder 13 functions as a tapered outer cylinder side grip 15.

The end portion of the outer cylinder 13 on the handpiece main body 2 side and the tip end side of the joint member 11 are connected by using a fixing ring 16.

The connecting portion between the fixing ring 16 and the joint member 11 is rotated by engaging the lock pin 18 provided on the fixing ring 16 side with the spiral groove 17 on the joint member 11 side shown in FIG. It is fixed at the position of the mark 17a and has a removable configuration that can be removed by rotating in the reverse direction.

As shown in FIG. 4, the connecting portion between the fixing ring 16 and the outer cylinder 13 is rotatably fitted via the stopper ring 19 and the O-ring 20.

The outer peripheral portion of the outer cylinder 13 functions as an outer cylinder side grip 15.

Further, at the tip of the outer cylinder 13, a reflection mirror 21 that reflects carbon dioxide laser light L and irradiates the affected area 51 is arranged, and a head 25 fitted with a three-way ring 24 is arranged.

The three-way ring 24 is provided with an emission hole 22 of carbon dioxide laser light L transmitted via a light guide path 32 in the central portion thereof, and for example, three ejection holes 23 are provided around the emission hole 22.

The joint member 11 is provided with a connection port 27 and a connection port 28 in parallel, the air flow path 50 is connected to the connection port 27, and the water flow path 49 is connected to the connection port 28. It has become like.

The air supplied from the connection port 27 reaches the light guide path 32 in the inner cylinder 12 through the space 30 formed in the connecting hole 29 and the cartridge 7, and is further injected from the exit hole 22.

On the other hand, the water supplied from the connection port 28 is injected from the fluid flow path 14 formed between the inner cylinder 12 and the outer cylinder 13 through the connecting hole 31 and the ejection hole 23 of the three-way ring 24, and the air is injected. Is mixed with and is sprayed toward the affected area as a mixed mist.

That is, the high-power carbon dioxide laser device 1 according to the present embodiment is configured to include an internal air flow path and an internal water flow path in the handpiece 5.

In the high-power carbon dioxide laser device 1 according to the present embodiment having the above-described configuration, when the affected area 51 is incised, the carbon dioxide laser transmitting unit 44 is operated to output the carbon dioxide laser light L, and the light guide path 45 is opened. Then, it is transmitted to the light guide path 32 in the handpiece 5, and further, the carbon dioxide laser light L is irradiated to the affected area 51 by the reflection mirror 21 provided at the tip of the outer cylinder 13.

Further, the air supply source 48 reaches the connection port 27 via the air flow path 50, and further, the exit hole 22 passes through the communication hole 29, the space 30 formed in the cartridge 7, and the light guide path 32 in the inner cylinder 12. The air that has passed through the above is injected into the affected area 51.

Further, water from the water tank 47 reaches the connection port 28 via the water flow path 49, and further, water is injected into the affected area 51 through the communication hole 31, the fluid flow path 14, and the ejection hole 23 of the three-way ring 24.
As a result, the air and water are mixed and jetted as a mixed mist toward the affected area 51.

According to the high-power carbon dioxide laser device 1 according to the present embodiment having the above-described configuration, as is clear from the above-mentioned explanation of the principle, for example, the affected area 51 of the high-power carbon dioxide laser light L having an output of 15 to 25 W. By combining irradiation with the affected area 51 and injection of a mixed mist of water and air onto the affected area 51, sufficient energy is transmitted to the affected area 51 when the affected area 51 is incised, and cooling in the affected area 51 is performed. By maintaining the state and suppressing the occurrence of carbonization and heat degeneration of the affected area tissue, an efficient incision or evaporative action can be realized, and as a result, the efficiency of treatment for the affected area 51 can be surely increased.

In FIG. 6, the tip portions of the water flow path 49 and the air flow path 50 are attached to the outer periphery of the handpiece tip portion 3 by using an attachment 56 made of, for example, a binding belt, and the affected portion region of the high-power carbon dioxide laser light L is attached. It shows the handpiece 5A of the modification of the structure which enabled the irradiation to 51 and the injection of the mixed mist of water and air to the affected area 51.

Even when the handpiece 5A of the modified example having the configuration shown in FIG. 6 is adopted in the high-power carbon dioxide laser apparatus 1 according to the present embodiment, it is the same as the case where the handpiece 5 shown in FIG. 4 described above is used. Can exert various effects.

The present invention is widely applicable to surgical operations (incision of gums and mucous membranes, evaporation), root canal treatment, treatment of temporomandibular disorders, etc. among dental treatments.

1 High-power carbon dioxide laser device 2 Handpiece body 3 Handpiece tip 4 Body side grip 5 Handpiece 5A Handpiece 7 Cartridge 8 Lens 9 Lens holder 10 Lens fixing part 11 Joint member 12 Inner cylinder 13 Outer cylinder 14 Fluid flow path 15 Outer cylinder side grip 16 Fixing ring 17 Spiral groove 17a mark 18 Lock pin 19 Stopper ring 20 O ring 21 Reflective mirror 22 Ejection hole 23 Ejection hole 24 Three-way ring 25 Head 27 Connection port 28 Connection port 29 Communication hole 30 Space 31 Communication Hole 32 Light guide path 42 Device body 43 Control unit 44 Carbon dioxide laser transmitter 45 Light guide path 46 Operation display 47 Water tank 48 Air supply source 49 Water flow path 50 Air flow path 51 Affected area tissue 52 Evaporation area 53 Carbonized layer 54 Protein coagulation layer 55 Thermal layer 56 Mounting tool L Carbon dioxide laser light

Claims (3)

A handpiece that irradiates a carbon dioxide laser beam from the tip to the affected area of the affected area,
A carbon dioxide laser oscillator that outputs high-power carbon dioxide laser light, and a carbon dioxide laser oscillator
Consists of a high-power carbon dioxide laser device equipped with a water tank and an air source
The handpiece is provided with a light guide path for guiding carbon dioxide laser light from the carbon dioxide laser oscillator, and is provided with a light guide path.
The other end of the water flow path having one end connected to the water tank is connected to the handpiece, and the air flow path having one end connected to the air supply source is connected to the handpiece, and the tip of the handpiece is connected to the affected area. In addition to irradiating the carbon dioxide laser light toward the water, the water and air from the water tank and the air supply source are combined with the irradiation of the carbon dioxide laser light.
In a high-power carbon dioxide laser apparatus configured to be capable of injecting from the tip of the handpiece via the water flow path and the air flow path.
The handpiece emits high-power carbon dioxide laser light of 15 to 25 W oscillated from the carbon dioxide laser oscillator.
An irradiation means for irradiating the affected area is provided, and in combination with the irradiation of the high-power carbon dioxide laser light of 15 to 25 W, the water from the water tank and the air supply source are combined with the water flow path and the air flow path. An injection means for injecting a mixed mist of air toward the affected area is provided.
In combination with irradiating the affected area with a high-power carbon dioxide laser beam of 15 to 25 W for the purpose of incision or evaporation of the handpiece, the handpiece's injection means of the handpiece The high output while injecting a mixed mist of water and air for the purpose of efficient incision or maintenance promotion of transpiration action by irradiation with high output carbon dioxide laser light of 15 to 25 W at the time of incision or transpiration by the irradiation means. By providing a control unit that controls the occurrence of transpiration and thermal incision of the affected area in the affected area irradiated with the carbon dioxide laser light of the above.
By combining the means for irradiating the handpiece with a high-power carbon dioxide laser beam of 15 to 25 W and the means for injecting a mixed mist of water and air, sufficient energy is transmitted to the affected area at the time of incision of the affected area, and It is configured to maintain the cooled state of the affected area, suppress the occurrence of carbon dioxide and thermal degeneration of the affected tissue in the affected area, realize an efficient incision or transpiration, and improve the treatment efficiency for the affected area. A high-power carbon dioxide laser device characterized by the fact that it has been used. The light guide path that guides the high-power carbon dioxide laser light of 15 to 25 W oscillated from the carbon dioxide laser oscillating unit of the irradiation means of the handpiece is composed of a manipulator provided with a mirror that reflects the laser light at each joint. The high-power carbon dioxide laser apparatus according to claim 1. The handpiece is detachably attached to the handpiece main body and the handpiece main body with the tip of the handpiece having a head attached to the tip thereof, and on the outer periphery of the tip of the handpiece, to the water tank and the air supply source. The other ends of the water flow path and the air flow path to which one end is connected are detachably attached by an attachment such as a binding belt, and a mixed mist of water and air is sprayed from each open end toward the affected area. The high-power carbon dioxide laser apparatus according to claim 1 or 2, wherein the injection means of the handpiece is formed by forming the handpiece so that the handpiece can be ejected.

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