WO2022097789A1

WO2022097789A1 - Laser irradiation apparatus and handpiece provided therein

Info

Publication number: WO2022097789A1
Application number: PCT/KR2020/015485
Authority: WO
Inventors: 최종석
Original assignee: (주)라메디텍
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-05-12

Abstract

A laser irradiation apparatus according to the present invention comprises: a body including a power supply unit; a handpiece formed to be driven by the power supply unit and emit a laser beam; and a tube connected at both ends thereof to the body and the handpiece respectively and extending to allow the body and the handpiece to communicate with each other, wherein the handpiece comprises: a casing; an oscillating lamp disposed in the casing; a first communication hole formed to pass through the casing so as to suction outside air into the casing or discharge air from the inside to the outside of the casing; and a second communication hole formed to pass through the casing and allow the inside of the casing and the inside of the tube to communicate with each other. A cooling flow is formed between the first communication hole and the second communication hole, and air flowing along the cooling flow cools the oscillating lamp, and cools the power supply unit via the inside of the tube.

Description

Laser irradiation device and handpiece provided therefor

The present invention relates to a laser irradiation device and a handpiece provided therefor.

With the recent development of medical devices, state-of-the-art laser devices in the medical field are being widely used for the treatment of various diseases and various skin procedures. It is important that these various laser devices provide safety and convenience to both the operator and the operator.

In this regard, among various types of lasers, excimer laser is a laser in the ultraviolet region using excimer, a chemical species that binds in an excited state and disperses in a ground state. used

As a prior art, Patent Document 1, which is an excimer laser device for skin treatment, discloses an excimer lamp filled with a gas for generating an excimer in order to irradiate the excimer laser. In addition, in order for the excimer lamp to operate efficiently within an appropriate temperature range and to be safely handled, a configuration for introducing external air to cool the excimer lamp has been disclosed.

However, in Patent Document 1 (JP 4670780 B2, registered on January 28, 2011), the flow for cooling is formed only around the excimer lamp, so it is not possible to efficiently utilize the flow generated for cooling. It was not possible to secure a filter path or space to effectively remove harmful substances such as ozone. In addition, Patent Document 1 is configured to cool the excimer lamp from the rear to which the laser is irradiated, so that it is difficult to perform cooling in the vicinity of the front to which the laser is irradiated and to remove harmful substances.

Accordingly, while solving the problems of the prior art as described above, there is a method that can achieve miniaturization and weight reduction in the configuration of the handpiece method, which is used by the operator by hand with a built-in laser generator (lamp). is required

One object of the present invention is to provide a handpiece and a laser irradiation device configured to be able to cool a lamp without circulating a separate cooling fluid as well as to perform cooling for the inside of the body.

Another object of the present invention is to provide a handpiece and a laser irradiation device in which a filter path is secured by forming a cooling flow so that a filter for filtering harmful substances can be installed in the body or tube.

Another object of the present invention is to provide a handpiece and a laser irradiation device that are formed to minimize the flow resistance of the cooling flow in consideration of the arrangement of the lamp and the laser irradiation direction.

Another object of the present invention is to provide a handpiece and a laser irradiating device made possible to simultaneously cool the components placed in the path through which the laser is generated and transmitted.

In order to achieve one object of the present invention, a laser irradiation apparatus according to the present invention includes: a main body having a power supply; a handpiece driven by the power supply unit and formed to irradiate a laser; and a tube having the body and the handpiece connected to both ends, respectively, and extending to communicate the body and the handpiece with each other, wherein the handpiece includes: a casing; an oscillation lamp positioned inside the casing; a first communication port formed to pass through the casing, sucking outside air into the inside of the casing or discharging air from the inside of the casing to the outside; and a second communication port passing through the casing to communicate the inside of the casing and the inside of the tube with each other, cooling the oscillation lamp between the first communication port and the second communication port, and A cooling flow is formed in which air for cooling the power supply unit flows through the inside of the tube.

The body may further include a body fan configured to suck air from or discharge air to the first communication port in order to generate the cooling flow.

In order to achieve another object of the present invention, in at least one of the tube and the main body, a body filter formed so that the air cooled by the oscillation lamp passes is installed.

A plurality of the main body filters may be installed along the path of the cooling flow so that the air passes sequentially.

In order to achieve another object of the present invention, the oscillation lamp extends in one direction, and the first communication port and the second communication port are interposed between the oscillation lamp so that the cooling flow is formed in the one direction. and disposed to be spaced apart from each other in the one direction.

The casing includes a grip portion formed on one side between the first communication hole and the second communication hole, and the handpiece is located on the opposite side of the grip portion with the oscillation lamp interposed therebetween, It may further include a window portion formed to pass the irradiated laser.

In order to achieve one object of the present invention, the handpiece of the laser irradiation apparatus according to the present invention communicates with each other by a tube and a main body having a power supply unit, and is driven by the power supply unit to irradiate the laser. a casing provided with; an oscillation lamp positioned inside the casing; a first communication port formed to pass through the casing, sucking outside air into the inside of the casing or discharging air from the inside of the casing to the outside; and a second communication port passing through the casing to communicate the inside of the casing and the inside of the tube with each other, cooling the oscillation lamp between the first communication port and the second communication port, and A cooling flow is formed in which air for cooling the power supply unit flows through the inside of the tube.

In order to achieve another object of the present invention, the oscillation lamp extends in one direction, and the first communication port and the second communication port are disposed to be spaced apart in the one direction with the oscillation lamp therebetween, and the grip part is formed on the side surface of the casing between the first communication hole and the second communication hole.

The handpiece may further include a window portion positioned on the opposite side of the grip portion with the oscillation lamp interposed therebetween, and formed to pass the laser beam irradiated from the oscillation lamp.

In order to achieve another object of the present invention, the handpiece is positioned to be spaced apart from the oscillation lamp on one side of the casing, and further comprises a window portion formed to pass the laser irradiated from the oscillation lamp, the A cooling flow is formed to pass between the oscillation ramp and the window portion to cool the window portion.

The handpiece may further include a blowing fan installed between the first communication port and the second communication port inside the casing to form the cooling flow.

The handpiece may further include a lamp filter installed at at least one of between the first communication port and the oscillation lamp and between the oscillation lamp and the second communication port, and formed to allow the cooling flow to pass therethrough. .

According to the present invention constituted by the solution described above, the following effects are obtained.

In the laser irradiation apparatus according to the present invention, the oscillation lamp is cooled by a cooling flow formed between the first communication port communicating with the outside and the second communication port communicating with the body. According to this, it is possible to cool the oscillation lamp as well as the components inside the main body together with the cooling of the oscillation lamp while using external air as the cooling fluid, thereby enabling efficient cooling of the device. In addition, since a configuration for circulating a separate cooling fluid may be omitted, it is possible to reduce the size and weight of the device.

In the laser irradiation apparatus according to the present invention, the cooling flow passing through the oscillation lamp of the handpiece passes through the tube and the main body, and harmful substances including ozone can be filtered by the main body filter. Accordingly, a sufficient time and path for filtering harmful substances may be secured, and the filtering effect may be improved.

In the handpiece of the laser irradiation device according to the present invention, the cooling flow is formed in one direction parallel to the oscillation lamp, so that the flow resistance of the cooling flow is minimized and efficient cooling can be implemented. In addition, since the window part and the grip part are disposed to cross one direction in which the cooling flow is formed, it contributes to weight reduction and miniaturization of the handpiece, and convenience of use can be secured.

A flow is formed inside the handpiece of the laser irradiation device according to the present invention to cool the window part together with the oscillation lamp. Accordingly, since it is possible to simultaneously cool the components placed in the path through which the laser is generated and transmitted, efficient use of the cooling fluid is possible.

1 is a perspective view showing a laser irradiation apparatus according to the present invention.

FIG. 2 is a perspective view of the handpiece shown in FIG. 1 viewed from the bottom to which a laser is irradiated.

3 is a view showing the internal configuration of the handpiece shown in FIG.

4 is a view showing the internal configuration of the body connected to the opposite end of the tube shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, when a certain part is said to be "connected" with another part throughout the specification, it is not only directly connected, but also electrically connected through another member in the middle, and another element in the middle. Including connected cases. Furthermore, throughout this specification, when a member is said to be located "on" another member, this includes not only a case in which a member is in contact with another member but also a case in which another member is present between the two members.

The laser irradiation apparatus according to an embodiment of the present invention may be configured to generate and irradiate an excimer laser for skin treatment. The laser irradiation apparatus according to an embodiment of the present invention includes a main body, a tube, and a handpiece, and the operator can perform the treatment by irradiating the excimer laser to the treatment target area of the person to be treated while holding the handpiece.

1 is a perspective view showing a laser irradiation apparatus 10 according to an embodiment of the present invention. 2 is a perspective view of the handpiece 100 shown in FIG. 1 as viewed from the bottom surface to which the laser is irradiated. In addition, FIG. 3 is a view showing the internal configuration of the handpiece 100 shown in FIG. 2, and FIG. 4 is the internal configuration of the body 300 connected to the opposite end of the tube 200 shown in FIG. It is the drawing shown.

1 and 4 , the laser irradiation apparatus 10 according to an embodiment of the present invention includes a handpiece 100 , a tube 200 , and a body 300 . Hereinafter, some configurations of the body 300 will be described first, and the characteristic configuration of the present invention including the handpiece 100 and the tube 200 and the rest of the configuration of the body 300 will be described.

Referring to FIG. 4 , the main body 300 may include a power supply unit 310 and a control unit 320 . The power supply unit 310 and the control unit 320 may be installed to be fixed to the inner space of the main body 300 . The power supply unit 310 may supply power to an oscillation lamp 120 to be described later mounted on the handpiece 100 . In addition, the control unit 320 may be configured to control the power supply unit 310 and further, to control the operation and state of the laser irradiation apparatus 10 according to an embodiment of the present invention.

And, as shown in FIG. 1 , a display unit 301 showing an operating state of the laser irradiation apparatus 10 according to the present invention may be installed on one surface of the main body 300 . In addition, the main body 300 is connected to the handpiece 100 by a tube 200, and the tube 200 may include a cable 210 to supply power from the main body 300 to the handpiece 100. there is.

Meanwhile, the handpiece 100 includes a casing 110 and an oscillation lamp 120 . Referring to FIG. 2 , the casing 110 forms the exterior of the handpiece 100 and includes a grip portion 111 in a shape that is easily gripped by an operator by hand. In addition, the casing 110 may include a grip portion 111 or an operation switch 112 formed at a position adjacent to the grip portion 111 . By using the operation switch 112 , the operator may turn on/off the laser irradiation device 10 or the oscillation lamp 120 according to the present embodiment while holding the grip part 111 .

In addition, the casing 110 may include a cartridge cover 113 . As shown in FIG. 3 , the cartridge cover 113 constituting a part of the casing 110 may be detachably coupled to the remaining part of the casing 110 . By separating the cartridge cover 113 from the rest of the casing 110, components placed inside the casing 110, such as the oscillation lamp 120, can be replaced.

Referring to FIG. 3 , the oscillation lamp 120 may be installed to be fixed in the inner space of the casing 110 . The oscillation lamp 120 is operated to oscillate a laser by receiving electrical energy, and in the present embodiment, may be an excimer lamp that generates an excimer laser. In this embodiment, the handpiece 100 may further include a lamp housing 130 , and the lamp housing 130 may be formed to receive the oscillation lamp 120 and be fixed to the inner wall of the casing 110 . The oscillation lamp 120 may be formed in a cylindrical or tubular shape having an open hollow extending in one direction, and an inert gas for laser oscillation may be filled in an internal space (between the hollow and an outer circumferential surface) of the lamp.

In addition, as shown in FIGS. 2 and 3 , the handpiece 100 may further include a window unit 140 . The window 140 may be formed so that the laser irradiated from the oscillation lamp 120 passes. By forming the window 140, the laser can be irradiated to the outside in a state in which the inside and outside of the handpiece 100 are isolated from each other. In addition, the window unit 140 of the present invention may serve to determine the area or size of the laser to be irradiated.

Specifically, the window unit 140 may be disposed at a position spaced apart from the oscillation lamp 120 in a lateral direction of the oscillation lamp 120 that is disposed to extend in one direction. In this case, the aforementioned grip part 111 may be disposed on the opposite side of the window part 140 with the oscillation lamp 120 interposed therebetween. Accordingly, the operator may hold the grip portion 111 and move the handpiece 100 to position the window portion 140 on the treatment target portion of the operator.

Referring to FIG. 2 , the window unit 140 may include a frame 141 , a window 142 , and an opening/closing door 143 . The frame 141 may be connected to the casing 110 or the cartridge cover 113 constituting a part of the casing 110 integrally. In addition, a window 142 through which a laser is passed through and irradiated to the outside may be coupled to the center of the frame 141 . Furthermore, the opening and closing door 143 may be coupled to the frame 141 to be detachable or slidable. The operator can change the degree of covering the window 142 by replacing the opening and closing doors 143 of different sizes or adjusting the position by sliding one opening and closing door 143, and thus the laser irradiated to the outside The area of may be variable.

Hereinafter, a cooling method capable of efficient cooling advantageous for miniaturization and removal of harmful substances, focusing on the cooling flow F formed in the handpiece 100 of the laser irradiation device 10 according to an embodiment of the present invention Explain.

Referring to FIG. 4 , the handpiece 100 of this embodiment includes a first communication port 150 and a second communication port 160 . The first communication hole 150 and the second communication hole 160 may be formed to pass through the casing 110 , respectively. However, the first communication port 150 is formed in a position to be exposed to the outside while communicating with each other the inner space and the outer space of the casing 110 by penetrating the casing 110, while the second communication port 160 is the casing The inner space of 110 and the inner space of the tube 200 coupled to the casing 110 are arranged to communicate with each other.

Specifically, in this embodiment, the first communication hole 150 may be composed of a plurality of holes penetrating the casing (110). The first communication hole 150 may be formed at one end of both ends of the casing 110 in one direction in which the oscillation lamp 120 extends.

In addition, the second communication port 160 may be a hole for coupling the tube 200 formed by the tube coupling portion 115 formed in the casing 110 . A tube 200 having an internal space communicating with the body 300 and being flexible may be coupled to the tube coupling part 115 . By inserting the tube 200 into the second communication port 160, the tube 200 is mounted on the tube coupling part 115, and the inner space of the casing 110 and the inner space of the tube 200 can communicate with each other. there is. The communication space 220 of the tube 200 shown in FIG. 3 corresponds to the inner space of the tube 200 , and the inner space of the casing 110 and the inner space of the body 300 via the communication space 220 . These can communicate with each other.

In the handpiece 100 of the laser irradiation device 10 according to an embodiment of the present invention, a fluid for cooling the oscillation lamp 120 flows between the first communication port 150 and the second communication port 160 . A cooling flow F may be formed. Specifically, by forming the first communication port 150 , the air outside the handpiece 100 is supplied into the handpiece 100 and used for cooling the oscillation lamp 120 , or inside the handpiece 100 . Air used for cooling the oscillation lamp 120 may be discharged to the outside of the handpiece 100 .

In this way, external air can be utilized for cooling by the first communication port 150 , and by the second communication port 160 , it oscillates to the inside of the body 300 via the tube 200 . A fluid (eg, air) used to cool the lamp 120 may be delivered. Accordingly, the fluid forming the cooling flow F passes through the inner space of the tube 200 and cools the components installed inside the body 300 (eg, the power supply unit 310 or the control unit 320 ). can be used for

The handpiece 100 according to the present invention has a first communication port 150 communicating with the outside and a second communication port 160 communicating with the main body 300, so that outside air without circulating a separate cooling fluid is provided. It is possible to cool the internal components of the oscillation lamp 120 and the like by using it. In addition, the outside air used for cooling the oscillation lamp 120 may be supplied into the body 300 , or the gas used for cooling the inside of the body 300 may be used for cooling the oscillation lamp 120 . Accordingly, the configuration for cooling the oscillation lamp 120 can be minimized and used efficiently, so that the miniaturization and weight reduction of the handpiece 100 and the laser irradiation device 10 can be implemented.

As described above, when the handpiece 100 is provided with the first communication port 150 and the second communication port 160, as shown in FIG. 4, the main body 300 is a main body fan (fan, 330). ) and the main body filter 340 may be provided, so that a configuration necessary for cooling the handpiece 100 may be provided in the main body 300 .

Specifically, the main body fan 330 may be operated by the power source 310 to generate a cooling flow F for cooling the oscillation lamp 120 . The body fan 330 forms a cooling flow F for sucking air from the first communication port 150 side of the handpiece 100, or a cooling flow F for discharging air toward the first communication port 150 side. ) can be formed. Together with the body fan 330 , a third communication port 303 that corresponds to the first communication port 150 and exchanges air with the outside may be formed in the main body 300 .

On the other hand, in the laser irradiation apparatus 10 according to the present invention, the main body filter 340 serves to filter ozone generated from the oscillation lamp 120 of the handpiece 100 while being positioned on the main body 300 . can Specifically, the body filter 340 may be installed in the inner space of at least one of the body 300 and the tube 200 , and may be disposed in a path through which a fluid for cooling the oscillation lamp 120 passes. The body filter 340 may be formed to filter harmful substances including ozone.

In the present invention, when the oscillation lamp 120 is cooled by sucking air from the first communication port 150 , the air passing through the oscillation lamp 120 passes through the second communication port 160 without being directly discharged to the outside. Thus, it has a long flow path passing through the tube 200 and the body 300 . A plurality of body filters 340 of the present invention may be installed on a flow path of air passing through the tube 200 and the body 300 , and the air may sequentially pass through the plurality of body filters 340 . That is, sufficient time and a path for filtering harmful substances are secured, and a plurality of body filters 340 are disposed on the path, thereby improving the filtering effect to reduce the emission of hazardous substances and ensure safety.

Furthermore, the generation of the cooling flow F for cooling the oscillation lamp 120 and the configuration for the removal of harmful substances of the oscillation lamp 120 are provided inside the body 300, so that the laser irradiation device according to the present invention ( 10), the weight of the handpiece 100 can be made, and the noise and vibration of the handpiece 100 itself can also be reduced. Therefore, the present invention can provide a comfortable and light feeling of use to the operator and the operator.

However, as shown in FIG. 3 , the handpiece 100 according to an embodiment of the present invention may further include a blowing fan 170 and a lamp filter 180 . The blowing fan 170 is installed between the first communication port 150 and the second communication port 160 may be driven to generate a cooling flow (F). In addition, the lamp filter 180 may be installed between the first communication port 150 and the oscillation lamp 120 or between the oscillation lamp 120 and the second communication port 160 , and the body filter 340 . Similarly, harmful substances including ozone generated from the oscillation lamp 120 can be filtered.

As in the present embodiment, as the blowing fan 170 or the lamp filter 180 is further provided inside the handpiece 100, additional power can be secured or the filtering function can be strengthened. However, in the present invention, since the generation of the cooling flow (F) or the filtering function of harmful substances can be performed together in the tube 200 and the body 300, the handpiece 100 itself is designed to be miniaturized and lightweight. can be Specifically, the blowing fan 170 of the handpiece 100 may be designed to provide only a minimum auxiliary power that contributes to the formation of the cooling flow F, and the lamp filter 180 includes the body filter 340 It may be designed to perform only a part of the entire filtering process.

On the other hand, inside the handpiece 100 of the present embodiment, the cooling flow F for cooling the oscillation lamp 120 may be configured to perform cooling of the window unit 140 together. To this end, the cooling flow F between the first communication port 150 and the second communication port 160 may be formed to pass between the oscillation lamp 120 and the window unit 140 .

Specifically, as shown in FIG. 3 , a part of the cooling flow F flowing into the first communication port is formed inside the lamp housing 130 for cooling the oscillation lamp 120 , and another part is formed in the lamp housing. Bypassing 130 , it may be formed between the lamp housing 130 and the window unit 140 . The flow that bypasses the lamp housing 130 and flows toward the window unit 140 may be cooled together with the window unit 140 , may be merged with the flow that cooled the oscillation lamp 120 , and may flow into the second communication port.

In this way, as the cooling flow F is induced between the oscillation lamp 120 and the window unit 140, a large amount of the cooling flow F may be supplied to the surface on which the laser is irradiated to the recipient among the outer peripheral surfaces of the oscillation lamp 120. In addition, the temperature rise of the window unit 140 can be suppressed.

On the other hand, the first communication port 150 and the second communication port 160 may be arranged to reduce the flow resistance of the cooling flow F inside the handpiece 100 . Specifically, the first communication port 150 and the second communication port 160 are disposed at both ends in one direction in which the cylindrical oscillation lamp 120 extends, the first communication port 150 and the second communication port Reference numeral 160 may suction or discharge air in one direction. Accordingly, a cooling flow F flowing parallel to the extending direction of the oscillation lamp 120 may be formed, thereby suppressing an increase in flow resistance. Furthermore, since the operator's hand and the subject's skin are positioned in a direction that intersects with one direction in which the cooling flow F is formed, direct exposure of the cooling flow F to the operator and the recipient is prevented, and the feeling of use is not impaired. and safety can be ensured.

However, as shown in FIG. 4, when the first communication port 150 and the second communication port 160 are designed not to be positioned on a straight line in one direction, the guide vane inside the casing 110 ( 190) may be installed. The guide vane 190 is, for example, formed to connect the end of the oscillation lamp 120 and the second communication port 160 in a streamlined manner, thereby suppressing fluid stagnation in the inner space of the casing 110 . there is. By reducing the flow resistance by the guide vanes 190 , it is possible to design the blower fan 170 or the body fan 330 for driving the cooling flow F to be lightweight.

The description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. There will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

In addition, the scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention. do.

Claims

a body having a power supply;

a handpiece driven by the power supply unit and formed to irradiate a laser; and

The main body and the handpiece are connected to both ends, respectively, and a tube extending to communicate the main body and the handpiece with each other,

The handpiece is

casing;

an oscillation lamp positioned inside the casing;

a first communication port formed to pass through the casing, sucking outside air into the inside of the casing or discharging air from the inside of the casing to the outside; and

and a second communication port formed to pass through the casing to communicate the inside of the casing and the inside of the tube with each other,

A laser irradiation device, characterized in that the cooling flow is formed between the first communication port and the second communication port to cool the oscillation lamp, and the air for cooling the power supply unit through the inside of the tube is formed.
According to claim 1,

The main body, in order to generate the cooling flow, the laser irradiation device further comprising a main body fan is formed to suck air from the first communication port or discharge to the first communication port.
According to claim 1,

In at least one of the tube and the main body, a main body filter formed so that the air cooled by the oscillation lamp passes through is installed.
4. The method of claim 3,

The main body filter is a laser irradiation device, characterized in that the plurality of installed along the path of the cooling flow so that the air sequentially passes.
According to claim 1,

The oscillation lamp extends in one direction,

The first communication port and the second communication port, the laser irradiation device, characterized in that arranged to be spaced apart in the one direction with the oscillation lamp therebetween so that the cooling flow is formed in the one direction.
6. The method of claim 5,

The casing includes a grip portion formed on one side between the first communication port and the second communication port,

The handpiece is positioned on the opposite side of the grip portion with the oscillation lamp interposed therebetween, and further comprises a window portion formed to pass the laser irradiated from the oscillation lamp.
In the handpiece of the laser irradiation device, which is communicated with each other by a main body and a tube having a power source, and is driven by the power source to irradiate a laser,

a casing having a grip portion;

an oscillation lamp positioned inside the casing;

a first communication port formed to pass through the casing, sucking outside air into the inside of the casing or discharging air from the inside of the casing to the outside; and

and a second communication port formed to pass through the casing to communicate the inside of the casing and the inside of the tube with each other,

Cooling the oscillation lamp between the first communication port and the second communication port, characterized in that the cooling flow through which the air for cooling the power supply unit flows through the inside of the tube is formed, the handpiece of the laser irradiation device .
8. The method of claim 7,

The oscillation lamp extends in one direction,

The first communication port and the second communication port are disposed to be spaced apart in the one direction with the oscillation lamp interposed therebetween,

The handpiece of the laser irradiation device, characterized in that the grip portion is formed on the side of the casing between the first communication port and the second communication port.
9. The method of claim 8,

The handpiece of the laser irradiation device, which is positioned opposite the grip portion with the oscillation lamp interposed therebetween, and further comprises a window portion formed to pass the laser irradiated from the oscillation lamp.
8. The method of claim 7,

It is positioned to be spaced apart from the oscillation lamp on one side of the casing, further comprising a window portion formed to pass the laser irradiated from the oscillation lamp,

The cooling flow is characterized in that formed to pass between the oscillation lamp and the window portion to cool the window portion, the laser irradiation device handpiece.
8. The method of claim 7,

Further comprising a blowing fan installed between the first communication port and the second communication port inside the casing to form the cooling flow, the handpiece of the laser irradiation device.
8. The method of claim 7,

Handpiece of the laser irradiation device, which is installed in at least one position between the first communication hole and the oscillation lamp and between the oscillation lamp and the second communication hole, further comprising a lamp filter formed so that the cooling flow passes .