KR20200127416A - Apparatus for irradiating laser and handpiece included therein - Google Patents

Abstract

The present invention relates to a laser radiating apparatus in which a lamp is cooled without circulating a coolant, and to a handpiece included in the laser radiating apparatus. According to the present invention, the laser radiating apparatus comprises: a main body including a power supply unit; a handpiece operated by the power supply unit to emit laser; and a tube having both end parts connected to the main body and the handpiece, respectively, and extended to allow the main body and the handpiece to communicate with each other. The handpiece comprises: a casing; an oscillation lamp disposed inside the casing; a first communication hole penetrating the casing to suck external air into the casing or discharging the air from the inside of the casing to the outside; and a second communication hole penetrating the casing to allow the inside of the casing and the inside of the tube to communicate with each other. Cooling circulation for supplying air, which cools the oscillation lamp and cools the power supply unit through the inside of the tube, is formed between the first and second communication holes.

Description

A laser irradiation device and a handpiece provided therein TECHNICAL FIELD [APPARATUS FOR IRRADIATING LASER AND HANDPIECE INCLUDED THEREIN]

The present invention relates to a laser irradiation apparatus and a handpiece provided therein.

With the recent development of medical devices, state-of-the-art laser devices in the medical field are widely used in 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 person to be treated.

In this regard, among various types of lasers, excimer laser is a laser in the ultraviolet region using excimer, a species that combines in an excited state and scatters in a ground state, and is widely used in the treatment and treatment of skin diseases as well as semiconductor processes. 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 excimer in order to irradiate an excimer laser. In addition, in order for the excimer lamp to be efficiently operated and safely handled within an appropriate temperature range, a configuration for introducing outside air to cool the excimer lamp has been disclosed.

However, Patent Document 1 does not effectively utilize the flow generated for cooling because the flow for cooling is formed only around the excimer lamp, and harmful substances such as ozone that may be generated from the excimer lamp can be effectively removed. The filter paths or spaces that exist were not secured. 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 remove harmful substances becomes a problem.

Thus, while solving the problems of the prior art as described above, in particular, a method that can achieve miniaturization and weight reduction in the configuration of the handpiece method used by the practitioner with a built-in laser generator (lamp). Required.

JP 4670780 B2 (registered on January 28, 2011)

An object of the present invention is to provide a handpiece and a laser irradiation apparatus configured to allow cooling of a lamp without circulating a separate cooling fluid, as well as cooling the interior of the body.

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

Another object of the present invention is to provide a handpiece and a laser irradiation apparatus 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.

Still another object of the present invention is to provide a handpiece and a laser irradiation apparatus that are configured to cool components placed in a path through which a laser is generated and transmitted at one time.

In order to achieve an object of the present invention, a laser irradiation apparatus according to the present invention includes: a main body having a power supply unit; A handpiece driven by the power supply and formed to irradiate a laser; And a tube having the main body and the handpiece connected at both ends thereof and extending so as to communicate the main body and the handpiece with each other, the handpiece comprising: a casing; An oscillation lamp located inside the casing; A first communication port formed to pass through the casing to suck external air into the casing or discharge air from the casing to the outside; And a second communication port formed to pass through the casing to communicate the inside of the casing and the inside of the tube, wherein the oscillation lamp is cooled between the first communication port and the second communication port, and the A cooling flow through which air for cooling the power supply unit flows through the inside of the tube is formed.

The main body may further include a main body fan configured to suck air from the first communication port or discharge it 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 main body filter is installed so that air cooled by the oscillation lamp passes through.

A plurality of 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 disposed between the oscillation lamp so that the cooling flow is formed in the one direction. And are arranged to be spaced apart in one direction.

The casing includes a grip part formed on one side between the first communication port and the second communication port, and the handpiece is located opposite the grip part with the oscillation lamp interposed therebetween, and from the oscillation lamp 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 is formed to be in communication with each other by a body having a power supply unit and a tube, and being driven by the power supply unit to irradiate a laser, and the grip unit A casing provided; An oscillation lamp located inside the casing; A first communication port formed to pass through the casing to suck external air into the casing or to discharge air from the casing to the outside; And a second communication port formed to pass through the casing to communicate the inside of the casing and the inside of the tube, wherein the oscillation lamp is cooled between the first communication port and the second communication port, and the A cooling flow through which air cooling the power supply unit flows through the inside of the tube is formed.

In order to achieve another object of the present invention, the oscillation lamp is extended 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, and the grip part Is formed on a side surface of the casing between the first communication port and the second communication port.

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

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

The handpiece may further include a blower 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 a position between the first communication port and the oscillation lamp and between the oscillation lamp and the second communication port, and configured to pass the cooling flow. .

According to the present invention constituted by the above-described solution means, 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 main body. According to this, it is possible to cool the components inside the main body as well as cooling the oscillation lamp while using external air as a cooling fluid, thereby enabling efficient device cooling. 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 body, and harmful substances including ozone may be filtered by the body filter. Accordingly, a sufficient time and a path for filtering harmful substances can be secured, so that the filtering effect can be improved.

In the handpiece of the laser irradiation apparatus according to the present invention, the cooling flow is formed in one direction in parallel with the oscillation lamp, so that the flow resistance of the cooling flow is minimized and efficient cooling can be implemented. In addition, the window portion and the grip portion are arranged to cross one direction in which the cooling flow is formed, thereby contributing to weight reduction and miniaturization of the handpiece, and convenience of use can be secured.

A flow is formed in the handpiece of the laser irradiation apparatus according to the present invention so as to cool the window portion together with the oscillation lamp. Accordingly, since it is possible to cool the components placed in the path through which the laser is generated and transmitted, it is possible to efficiently utilize the cooling fluid.

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 as viewed from a bottom surface irradiated with a laser.
3 is a view showing the internal configuration of the handpiece shown in FIG.
4 is a view showing the internal configuration of the main body connected to the opposite end of the tube shown in FIG.

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 the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, when a part of the specification is said to be "connected" with another part, it is not only the case that it is directly connected, but also the case that it is connected through another member in the middle, and the other element is electrically connected to each other. This includes the case of being connected. Furthermore, throughout this specification, when a member is said to be positioned "on" another member, this includes not only the case where a member is in contact with the other member, but also the case where another member exists 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 a practitioner may perform a procedure by irradiating an excimer laser onto a region to be treated of a 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. FIG. 2 is a perspective view of the handpiece 100 shown in FIG. 1 viewed from the bottom surface to which the laser is irradiated. In addition, Figure 3 is a view showing the internal configuration of the handpiece 100 shown in Figure 2, Figure 4 is an internal configuration of the main body 300 connected to the opposite end of the tube 200 shown in Figure 3 It is a drawing shown.

1 and 4, a 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 main body 300 will be described first, and the characteristic configurations of the present invention including the handpiece 100 and the tube 200 and the remaining configurations of the main 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 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.

In addition, 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, the tube 200 may be provided with a cable 210 to supply power from the main body 300 to the handpiece 100. have.

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

In addition, the casing 110 may be provided with a cartridge cover (113). As shown in FIG. 3, the cartridge cover 113 constituting a part of the casing 110 may be coupled to the rest of the casing 110 so as to be detachable from each other. By separating the cartridge cover 113 from the rest of the casing 110, components located 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 to the inner space of the casing 110. The oscillation lamp 120 is operated to oscillate a laser by receiving electric energy, and may be an excimer lamp that generates an excimer laser in this embodiment. 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 a hollow that is extended and opened in one direction, and an inert gas for laser oscillation may be filled in the inner space (between the hollow and the outer peripheral 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 unit 140 may be formed to pass the laser irradiated from the oscillation lamp 120. Since the window unit 140 is formed, the laser may be irradiated to the outside while the inside and the outside of the handpiece 100 are isolated from each other. In addition, the window unit 140 of the present invention may play a role of determining the area or size of the irradiated laser.

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

Referring to FIG. 2, the window unit 140 may include a frame 141, a window 142 and an opening and closing door 143. The frame 141 may be connected to be integrally with the casing 110 or the cartridge cover 113 constituting a part of the casing 110. In addition, a window 142 through which a laser can be passed and irradiated to the outside may be coupled to the center of the frame 141. Further, the frame 141 may be coupled to the open/close door 143 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 with each other or by sliding one opening and closing door 143 to adjust the position, and accordingly, the laser irradiated to the outside The area of the can be varied.

Hereinafter, focusing on the cooling flow (F) formed in the handpiece 100 of the laser irradiation apparatus 10 according to an embodiment of the present invention, an efficient cooling advantageous for miniaturization and a cooling method capable of removing harmful substances will be described. Explain.

Referring to FIG. 4, the handpiece 100 of the present embodiment includes a first communication port 150 and a second communication port 160. The first communication port 150 and the second communication port 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 the inner space and the outer space of the casing 110 by penetrating the casing 110, whereas the second communication port 160 is a 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 port 150 may be configured with a plurality of holes penetrating the casing 110. The first communication port 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 inner space communicating with the main body 300 and formed to be flexible may be coupled to the tube coupling portion 115. As the tube 200 is inserted 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. have. 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 Can communicate with each other.

In the handpiece 100 of the laser irradiation apparatus 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, as the first communication port 150 is formed, air outside the handpiece 100 is supplied into the handpiece 100 to be 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, outside air can be used for cooling by the first communication port 150, and oscillation to the inside of the main body 300 through the tube 200 by the second communication port 160 A fluid (eg, air) used for cooling the lamp 120 may be delivered. Accordingly, the fluid forming the cooling flow (F) passes through the inner space of the tube 200 to cool the components (for example, the power supply unit 310 or the control unit 320) installed inside the body 300 Can be used for

The handpiece 100 according to the present invention is provided with a first communication port 150 communicating with the outside and a second communication port 160 communicating with the main body 300, thereby preventing external air from circulating a separate cooling fluid. By using it, it is possible to cool the internal components such as the oscillation lamp 120. In addition, outside air used for cooling the oscillation lamp 120 may be supplied to the interior of the main body 300, or gas used for cooling the interior of the main 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 handpiece 100 and the laser irradiation device 10 can be miniaturized and lightweight.

As described above, when the handpiece 100 includes 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 330 ) And a body filter 340 may be provided, so that a configuration required for cooling of the handpiece 100 may be provided in the body 300.

Specifically, the main body fan 330 may be operated by the power supply unit 310 to generate a cooling flow F for cooling the oscillation lamp 120. The main body fan 330 forms a cooling flow F for sucking air from the side of the first communication port 150 of the handpiece 100, or a cooling flow F for discharging air toward the first communication port 150. ) Can be formed. Along with the main body fan 330, a third communication port 303 may be formed in the main body 300 to correspond to the first communication port 150 to exchange air with the outside.

On the other hand, in the laser irradiation apparatus 10 according to the present invention, the main body filter 340 serves to filter the ozone generated from the oscillation lamp 120 of the handpiece 100 while being positioned in the main body 300. I can. Specifically, the main body filter 340 may be installed in at least one of the main 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 air is sucked from the first communication port 150 to cool the oscillation lamp 120, the air that has passed through the oscillation lamp 120 is not immediately discharged to the outside but passes through the second communication port 160 Thus, it has a long flow path through the tube 200 and the body 300. The main body filter 340 of the present invention may be installed on a plurality of flow paths of air passing through the tube 200 and the main body 300, and the air may sequentially pass through the plurality of main filter 340. That is, a sufficient time and path for filtering toxic substances are secured, and a plurality of main filters 340 are disposed on the path, thereby improving the filtering effect to reduce toxic substances emission and secure safety.

Further, a configuration for generating a cooling flow (F) for cooling the oscillation lamp 120 and for removing harmful substances from the oscillation lamp 120 is provided inside the main body 300, so that the laser irradiation apparatus according to the present invention ( 10), the weight of the handpiece 100 can be made, and noise and vibration of the handpiece 100 itself can be reduced. Accordingly, the present invention can provide a comfortable and light feeling of use to a practitioner and a practitioner.

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 may be installed between the first communication port 150 and the second communication port 160 and 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 main filter 340 Likewise, harmful substances including ozone generated from the oscillation lamp 120 may be filtered.

As in the present embodiment, by further providing a blower fan 170 or a lamp filter 180 inside the handpiece 100, additional power may be secured or a filtering function may be enhanced. 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 in a direction of miniaturization and weight reduction. Can be. Specifically, the blowing fan 170 of the handpiece 100 may be designed to provide only a minimum auxiliary power contributing to the formation of the cooling flow (F), and the lamp filter 180 includes a main filter 340 It may be designed to perform only some of the entire filtering processes.

Meanwhile, in 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, some 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 the other part is the lamp housing. By bypassing 130, it may be formed between the lamp housing 130 and the window unit 140. The flow flowing toward the window unit 140 bypassing the lamp housing 130 may be cooled together with the window unit 140, and may be merged with the flow cooled by the oscillation lamp 120 to flow to the second communication port.

In this way, by inducing the cooling flow F between the oscillation lamp 120 and the window unit 140, a large amount of cooling flow F can be supplied to the surface on which the laser is irradiated to the operator among the outer circumferential surfaces of the oscillation lamp 120. In addition, an increase in temperature of the window unit 140 may 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) in 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, and the first communication port 150 and the second communication port 160 may intake or discharge air in one direction. Accordingly, a cooling flow F flowing in parallel with the extending direction of the oscillation lamp 120 may be formed, and thus an increase in flow resistance may be suppressed. Furthermore, since the operator's hand and the person's skin are positioned in a direction that intersects the one direction in which the cooling flow F is formed, the cooling flow F is prevented from being directly exposed to the operator and the subject, thus preventing the feeling of use. Safety can be secured.

However, as shown in FIG. 4, when the first communication port 150 and the second communication port 160 are designed not to be located in a straight line in one direction, a guide vane ( 190) can be installed. The guide vane 190, for example, is formed to connect the end of the oscillation lamp 120 and the second communication port 160 in a streamlined manner, so that fluid stagnation in the inner space of the casing 110 can be suppressed. have. As the flow resistance is reduced by the guide vane 190, it is possible to design the blower fan 170 or the main body fan 330 that drives the cooling flow F to be lightweight.

The description of the present invention described above is for illustrative purposes only, 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 limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

In addition, the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

F: cooling flow
10: laser irradiation device
100: handpiece
110: casing
111: grip portion
112: operation switch
113: cartridge cover
115: tube joint
120: oscillation lamp
130: lamp housing
140: window part
141: frame
142: Window
143: opening and closing door
150: first communication port
160: second communication port
170: blower fan
180: lamp filter
190: guide vane
200: tube
210: cable
220: communication space
300: main body
301: display unit
303: 3rd communication port
310: power supply
320: control unit
330: main body fan
340: body filter

Claims (12)

A main body having a power supply unit;
A handpiece driven by the power supply and formed to irradiate a laser; And
The main body and the handpiece are connected at both ends, respectively, and include a tube extending so as to communicate the main body and the handpiece with each other,
The handpiece,
Casing;
An oscillation lamp located inside the casing;
A first communication port formed to pass through the casing to suck in external air into the casing or discharge air from 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,
A laser irradiation apparatus, wherein a cooling flow is formed between the first communication port and the second communication port, cooling the oscillation lamp, and flowing air for cooling the power supply unit through the inside of the tube. The method of claim 1,
The main body further comprises a main body fan configured to suck air from the first communication port or discharge it to the first communication port in order to generate the cooling flow. The method of claim 1,
A laser irradiation apparatus, characterized in that a main body filter is installed in at least one of the tube and the main body to pass air cooled through the oscillation lamp. The method of claim 3,
The laser irradiation apparatus, characterized in that the plurality of body filters are installed along the path of the cooling flow so that the air passes sequentially. The method of claim 1,
The oscillation lamp extends in one direction,
Wherein the first communication port and the second communication port are 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. The method of claim 5,
The casing includes a grip part formed on one side between the first communication port and the second communication port,
The handpiece, the laser irradiation apparatus further comprises a window portion positioned opposite the grip portion with the oscillation lamp interposed therebetween, and formed to pass the laser irradiated from the oscillation lamp. In the handpiece of the laser irradiation apparatus formed to be in communication with each other by a tube and a main body having a power supply unit, driven by the power supply unit to irradiate a laser,
A casing having a grip portion;
An oscillation lamp located inside the casing;
A first communication port formed to pass through the casing to suck external air into the casing or to discharge air from 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,
A handpiece of a laser irradiation apparatus, characterized in that a cooling flow is formed between the first communication port and the second communication port to cool the oscillation lamp, and to cool the power supply unit through the inside of the tube. . 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 apparatus, characterized in that the grip portion is formed on a side surface of the casing between the first communication port and the second communication port. The method of claim 8,
The handpiece of the laser irradiation apparatus further comprising a window portion positioned opposite the grip portion with the oscillation lamp interposed therebetween and formed to pass a laser irradiated from the oscillation lamp. The method of claim 7,
Further comprising a window portion positioned to be spaced apart from the oscillation lamp on one side of the casing and 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 handpiece of the laser irradiation apparatus. The method of claim 7,
A handpiece of a laser irradiation apparatus further comprising a blower fan installed between the first communication port and the second communication port inside the casing to form the cooling flow. The method of claim 7,
The handpiece of the laser irradiation apparatus further comprising 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 configured to pass the cooling flow .

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