KR101677848B1

KR101677848B1 - Multi-wavelength laser treatment device and had-piece used to the same

Info

Publication number: KR101677848B1
Application number: KR1020150092601A
Authority: KR
Inventors: 김용한
Original assignee: 주식회사 이루다
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2016-11-18

Abstract

The present invention enables different laser beams of two or more wavelength ranges to be selectively or simultaneously used as a single handpiece so that the depth of penetration of the laser can be freely adjusted and the beam area of the laser beam irradiated to the skin lesion site can be freely adjusted So as to maximize the therapeutic effect using a high-power laser beam, to effectively prevent thermal damage to the laser treatment site, and to enable a practitioner to perform a thin and thin blood vessel, which was difficult to be visually recognized during the operation, And to provide a multi-wavelength laser treatment apparatus and a handpiece to be used therewith, which can treat a vast variety of vascular lesions that are difficult to perform effectively without damaging the skin.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-wavelength laser treatment apparatus,

The present invention relates to a multi-wavelength laser treatment apparatus and a handpiece used therein, and more particularly, to a multi-wavelength laser treatment apparatus and a handpiece used therewith. More particularly, the present invention relates to a multi- And a handpiece used in the treatment apparatus.

Recently, laser technology DL has made remarkable progress. In the field of vascular treatment, a laser system showing safer and superior effect has appeared, and a treatment using a laser for treatment of a vascular disease, which has been difficult to treat, has been tried many times. It has been confirmed that there is an effect.

In particular, vascular lesions of exposed vascular lesions (diseases that show red blood cells or nodules in the skin through dilation or vasodilation of the blood vessels in the dermis) have cosmetic, psychological, and social influences, Laser and surgical therapies are used, and their clinical results also vary depending on the equipment or the operator who is using it.

To treat vascular lesions, the laser wavelength absorbed by hemoglobin is used. The energy of the laser is absorbed by hemoglobin, and the blood coagulates in the blood vessel. As a result, the blood vessel is occluded and gradually disappears.

The most widely used laser for the treatment of such vascular lesions is a laser with a wavelength of 532 nm, and the 532 nm laser has high absorption of both melanin and oxygenhemoglobin.

The high uptake rate for oxygen hemoglobin allows the blood vessels to heat up to the clinical reaction temperature with a small incident energy, making it very effective in treating capillaries between 50 and 200 microns in diameter and minimizing damage to adjacent tissue due to excessive energy use .

However, since the conventional 532nm laser therapy device has been applied only to lesions that can be effective even if the laser penetration depth is not deep, such as capillary vascularity, pigment disease, skin regeneration, .

In addition, depending on the vascular lesion, laser treatment with a laser with a wavelength of 532 nm is often required and secondary dermal vascular treatment is required. In conventional laser treatment equipment, such treatment is difficult or the equipment is used simultaneously There is a problem of inconvenience and cost increase.

In the treatment of vascular lesions using a laser, the main absorber is oxygen hemoglobin and selectively coagulates to remove abnormal blood vessels. Since the blood vessel TRT (thermal relaxation time) is long, A long wavelength laser with a pulse width of 1 ms or more is used and the energy density is high, so that the temperature of the epidermal layer is rapidly increased during treatment, thereby causing heat damage to the skin treatment area of the patient.

Korean Patent Publication No. 10-2012-0052446
Korean Patent Laid-Open Publication No. 10-1998-0067406
Korean Patent Publication No. 10-2015-0026704

A handpiece of a multi-wavelength laser therapy apparatus according to an embodiment of the present invention includes a first optical fiber for a first treatment laser of a first wavelength outputted from a main body and a second optical fiber for outputting a first optical fiber output from the main body, A light transmitting unit connected to a second optical fiber for the second treatment laser of the two wavelengths to selectively or both irradiate the first treatment laser and the second treatment laser to the lesion site of the subject; And at least one of the first treatment laser and the second treatment laser is cooled so that the cooling gas supplied from the main body is selectively sprayed onto the lesion area of the subject, And a cooling regulator.

Preferably, the apparatus further includes a camera unit for capturing an image of a lesion area of the subject, wherein an image of a lesion area imaged by the camera unit is displayed through a display unit provided in the main body.

Preferably, the first body part is formed by coupling the light transmitting part to the first body part, the cooling part and the camera part are coupled to the second body part, and the first body part And a fixing assembly for detachably fixing the first assembly and the second assembly to each other, wherein the first assembly and the second assembly are coupled to each other by the fixing holder.

Preferably, the light transmitting portion includes a cylinder portion to which a first optical fiber for the first treatment laser beam and a second optical fiber to the second treatment laser beam are respectively connected, A first treatment laser and a second treatment laser which are transmitted through the cylinder part by driving the lens module to linearly move along the cylinder part; And a beam adjusting unit for adjusting the beam area of at least one of the two treatment lasers.

Preferably, a through hole is formed at an end of the first body part, the through hole being spaced apart from the end of the light transmitting part by a predetermined distance and passing through the therapeutic laser irradiated from the light transmitting part, And a light guiding part for irradiating the treatment laser to the lesion part through the through hole.

Preferably, the body of the lens module is configured to move together with the operation of the beam controller, a spiral movement guide is formed on the outer surface of the cylinder, and the body of the lens module moves along the movement guide The body of the lens module moves along the movement guide of the outer surface of the cylinder according to the operation of the beam adjuster, and the lens module linearly moves along the cylinder so that the beam area can be adjusted. do.

Preferably, the cooling regulator further comprises: a cooling chamber in which the cooling gas supplied from the main body is stored; a spray nozzle for spraying the cooling gas stored in the cooling chamber to the lesion site; And a control valve for controlling the cooling gas in the cooling chamber to be selectively injected through the injection nozzle by performing opening and closing operations according to a signal.

Meanwhile, a multi-wavelength laser treatment apparatus according to an embodiment of the present invention includes a laser output unit for generating a first treatment laser of a first wavelength and a second treatment laser of a second wavelength which is different from the first wavelength, A treatment light selecting unit capable of selecting either one of the first treatment laser and the second treatment laser or to simultaneously output two of them, a cooling gas supply unit for supplying a cooling gas, and a display unit; And a second optical fiber connected to the first optical fiber for the first treatment laser and the second optical fiber for the second treatment laser output from the main body so that either one of the first treatment laser and the second treatment laser is selectively or two And a cooling gas supplied from the cooling gas supply unit to cool the heat generated as a treatment laser is irradiated on the lesion site of the subject to be examined is irradiated to the lesion area of the subject, And a camera unit for photographing the lesion site to display an image of the lesion site of the subject through the display unit.

The multi-wavelength laser treatment apparatus and the handpiece used in the apparatus according to the present invention allow different laser beams of two or more wavelength ranges to be selectively or simultaneously used as one handpiece, It is possible to freely adjust the beam area of the laser beam irradiated on the lesion site, thereby maximizing the therapeutic effect using the high-power laser beam, effectively suppressing the thermal damage of the laser treatment site, and making thin and thin By allowing the practitioner to perform the procedure while confirming the blood vessel through the image, it is possible to effectively and vigorously treat various vascular lesions that are difficult to perform, without damaging the skin.

1 is a block diagram briefly showing a configuration of a multi-wavelength laser treatment apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing an example of a handpiece used in the multi-wavelength laser treatment apparatus according to the embodiment of the present invention shown in FIG.
FIG. 3 is a view showing the handpiece shown in FIG. 2 separated into two assemblies.
Fig. 4 is a side sectional view for explaining the detailed configuration of the handpiece shown in Fig. 2; Fig.
5 is a diagram for explaining driving of the lens module in the handpiece shown in Fig.

The multi-wavelength laser treatment apparatus according to the present invention and the handpiece used therein will be described in more detail with reference to the drawings.

The present invention is intended to provide an apparatus that enables a practitioner to effectively treat various types of vascular lesions that can be treated through the skin with one handpiece without simultaneously using various equipment. To this end, Various laser beams can be selectively used, and the area of the laser beam can be freely adjusted, so that various types of vascular lesions can be effectively treated.

The laser of the 532 nm wavelength has been described above with respect to the laser of the wavelength of 532 nm. On the other hand, the laser of the wavelength of 532 nm has a characteristic of showing high absorption in both of the melanin and oxygenhemoglobin in the skin, There is a problem in that the energy is not transmitted.

On the other hand, the 940nm wavelength has a lower hemoglobin and melanin absorption rate than the 532nm wavelength but has a longer wavelength so that it reacts deeper and can evenly heat the coarse and deeply positioned blood vessels. In addition, the heat generated by irradiation of the laser beam to the skin dermis layer is transmitted precisely and evenly throughout the dermis layer, and is effective for collagen regeneration.

In this way, there is a unique effect according to the wavelength of the laser. A laser with a wavelength of 532 nm is effective for treatment, and a laser with a wavelength of 940 nm is effective for treatment. Effective lesions can be obtained by using the laser of these two wavelengths .

As described above, the present invention has a configuration in which a laser having a wavelength of 532 nm and a laser having a wavelength of 940 nm can be selectively used as a single handpiece, and the laser beam irradiated according to a lesion region can be freely adjusted So that effective laser treatment is possible.

The present invention having the basic features as described above will be described in detail with reference to the embodiments shown in FIGS. 1 to 5. FIG.

1 to 5 illustrate the case of using two lasers such as a laser having a wavelength of 532 nm and a laser having a wavelength of 940 nm. However, the present invention is not limited to this, and a configuration in which three or more types of lasers can be selectively used Do.

The 'second treatment laser' of the 'first wavelength' and the 'second treatment laser' of the 'first wavelength' do not necessarily mean the laser of the wavelength of 532 nm and the laser of the wavelength of 940 nm, If it is possible to include it in advance, it should be revealed beforehand.

A multi-wavelength laser treatment apparatus according to an embodiment of the present invention will be described first with reference to FIG. 1 is a block diagram briefly showing a configuration of a multi-wavelength laser treatment apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the multi-wavelength laser treatment apparatus according to an embodiment of the present invention basically comprises a main body 100 and a handpiece 200.

The main body 100 includes a laser output unit 120 for generating and outputting a laser for two or more predetermined wavelengths as a therapeutic laser necessary for treatment of various skin lesions and skin improvement for the subject, A treatment light selecting unit 130 for allowing a practitioner to select a wavelength of laser to be output, a cooling gas supplying unit 140 for supplying a cooling gas for cooling the skin treatment site, a display unit A controller 150 and a controller 110 for controlling these components.

The handpiece 200 is a part to be handled by a practitioner, so that the treatment can be directly performed on the skin of the patient.

The laser output unit 120 and the cooling gas supply unit 140 of the main body 100 are connected to the handpiece 200 so that the treatment laser output from the laser output unit 120 in the handpiece 200 And the cold gas supplied from the cooling gas supply unit 140 is injected onto the treatment site to cool the treatment site.

The handpiece 200 will be described in more detail with reference to FIGS. 2 to 4. FIG.

FIG. 2 is a view showing an example of a handpiece used in the multi-wavelength laser treatment apparatus according to the embodiment of the present invention shown in FIG. 1, and FIG. 3 is a view showing the handpiece shown in FIG. And Fig. 4 is a side sectional view for explaining the detailed configuration of the handpiece shown in Fig. 2. As shown in Fig.

2 to 4, the handpiece 200 according to an exemplary embodiment of the present invention includes a light transmitting unit 230, a cooling control unit 260, a camera unit 270, and the like .

Particularly, the handpiece 200 according to the present embodiment can be divided into a first assembly 210 and a second assembly 240 as shown in FIG.

The first assembly 210 includes a first body 220 and a light transmission unit 230. The second assembly 240 includes a second body 250 and a fixed holder 281 And 282. The second body part 250 includes the cooling control part 260 and the camera part 270. [

That is, a configuration for transferring laser light, which is a main component of the handpiece 200, is disposed in the first assembly 210, and a configuration for cooling and imaging is disposed in the second assembly 240, .

The second assembly 240 can be easily attached to and detached from the first assembly 210 using the fixed holders 281 and 282.

As described above, the first assembly 210 and the second assembly 240 can be detachably attached to each other.

For example, if the handler is inconvenient when the practitioner performs the procedure, the second assembly can be separated and the procedure can be performed using only the first assembly.

In addition, an assembly in which other components are mounted in place of the assembly provided with the cooling regulator and the camera part can be constructed as a second assembly and easily combined with the first assembly and used together. For example, the second assembly may be configured to have a laser light transmission unit of a different wavelength band and may be coupled to the first assembly so as to be able to perform treatment using more various lasers.

In addition, since the first assembly and the second assembly can be easily attached and detached, the problematic portion can be easily separated and repaired, which is considerably effective in maintenance of the apparatus. For example, when a problem occurs in the function of the camera unit, the second assembly can be separated and the camera unit can be easily repaired and replaced with only the second assembly, which is quite effective.

The main structure of the handpiece according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4. FIG.

2 to 4, the light transmitting part 230 provided in the first body part 220 includes a lens module 231, a cylinder part 232, a beam adjusting part 232, a connecting part 236 ), And the like.

The connection portion 236 is a component that connects the first optical fiber 230a to the first treatment laser and the second optical fiber 230b to the second treatment laser to be connected to the cylinder portion 232, respectively.

Here, the laser output unit 120 of the main body may have a component for generating the first treatment laser beam and a component for generating the second treatment laser beam, respectively, and these components may be integrated into one unit .

The first optical fiber 230a transmits a first treatment laser from the laser output part of the main body to the cylinder part 232 and the second optical fiber 230b transmits a second treatment laser from the laser output part of the main body to the cylinder part 232. [ (232).

The lens module 231 optically adjusts at least one of a first treatment laser and a second treatment laser which is provided at an end of the cylinder part 232 and is transmitted through the cylinder part 232, (L), such that at least one of the first treatment laser and the second treatment laser is refracted and delivered to the skin lesion site.

The lens module 231 can increase or decrease the beam area by adjusting the focal length of the laser beam passing through the lens module 231. For this purpose, the lens module 231 is reciprocated linearly from one side of the cylinder part 232 to the other side. .

The beam modulating unit 234 is configured to drive at least one of the first treatment laser and the second treatment laser transmitted through the cylinder unit 232 by driving the lens module 231 to move linearly along the cylinder unit 232 To adjust the beam area.

The beam adjusting unit 234 may be vertically rotatable, and the cylinder unit 232 may rotate together with the beam adjusting unit 234.

4, a helical movement guide 233 is formed on the outer surface of the cylinder part 232, and one side of the lens module 232 is provided with a part for moving the rail along the movement guide 233 Respectively.

Accordingly, the lens module 232 can be linearly moved along the helical movement guide 233 while the cylinder part 232 rotates in accordance with the rotation of the beam adjusting part 234.

This is shown in more detail in Figures 5 (a) and 5 (b).

5 (a) and 5 (b), the beam adjusting unit 234 may be configured to rotate in engagement with the gear unit G provided at one side thereof, and the operator may adjust the beam adjusting unit 234, The body of the lens module 231 moves along with it.

The body of the lens module 231 is moved along the helical movement guide 233 formed on the outer surface of the cylinder part 232. The body of the lens module 231 is rotated by the rotation of the beam adjusting part 234 The lens module 231 itself moves linearly while rotating along the cylinder part 232 while moving the rail along the movement guide 233.

5 (a), when the beam adjusting unit 234 is rotated in the direction of the arrow, the lens module 231 also linearly moves in the direction of the horizontal arrow, and as shown in FIG. 5 (b) The state shown in FIG.

Of course, when the beam adjusting unit 234 is rotated in the opposite direction, the lens module 231 is also linearly moved back to the original position.

By linearly moving the lens module 231 by the above driving method, the focal distance of the therapeutic laser transmitted through the cylinder part 232 is changed, and the area of the beam is changed and appears.

As shown in FIG. 2, the beam adjusting unit 234 may be provided with a beam area indicator d for guiding the beam area by a numerical value or the like. The beam area indicator d may be formed on the first body part So that the practitioner can confirm it through the groove (h).

Accordingly, the practitioner can perform the laser treatment effectively by selecting the appropriate beam area through the display part (d) displayed on the beam adjusting part 234 while rotating the beam adjusting part 234 with the finger holding the handpiece 200 .

2 and 3, a handpiece according to an embodiment of the present invention includes a first body part 220 and a second body part 220. The first body part 220 is spaced apart from the end of the light transmitting part 230 by a predetermined distance, And the treatment laser forms a through hole 222 through which the therapeutic laser irradiated from the light transmitting portion 230 penetrates so that the treatment laser penetrates through the through hole 222 in contact with the lesion portion of the patient, And a light guiding part 221 for irradiating the lesion to the lesion area.

4, a description will be given of a cooling controller 260 for a handpiece according to an embodiment of the present invention.

The cooling control unit 260 of the handpiece includes a cooling chamber 261 in which the cooling gas supplied from the cooling gas supply unit 140 of the main body is stored and a cooling chamber 261 in which cooling gas stored in the cooling chamber 261 is sprayed And a control unit 260 for controlling the cooling gas in the cooling chamber 261 to be selectively injected through the injection nozzle 262 by performing an opening and closing operation in accordance with an electrical signal provided in the cooling chamber 261 And a control valve 263.

Since the TRT (Thermal Relaxation Time) of blood vessels is usually long, lasers that treat vascular lesions generally use a long wavelength laser with a pulse width of 1 ms or more, which is high in energy density (fluence). Therefore, it is necessary to sufficiently cool the skin layer with a cooling gas such as Tetrafluoroethane (R-134a) to protect it from thermal damage since the temperature of the epidermal layer of the lesion rapidly increases during treatment.

When the skin is cooled as described above, the pain and purpura purpura appear after treatment (red blood cells are turned into red or purple due to leakage of red blood cells into the dermis layer, and the color does not change even when the area is pressed) .

The control valve 263 may be implemented as a solenoid valve or the like. Although not shown in the drawing, a manipulation part that allows the operator to operate the control valve 263 may be provided on one side of the handpiece, The control valve 263 is operated by operating the control unit before the temperature of the skin epidermis rises to spray the cooling gas in the cold room 261 through the injection nozzle 262 to cool the skin and perform laser treatment .

2 to 4, the handpiece according to an embodiment of the present invention may include a camera unit 270 for capturing an image of a lesion area of the subject, An image of a lesion region imaged by the camera unit 270 can be displayed through the display unit 150 (see FIG. 1).

As described above, according to the present invention, different laser beams of two or more wave lengths can be selectively or simultaneously used as one handpiece, so that the depth of penetration of the laser can be freely adjusted, So that it is possible to maximize the therapeutic effect using a high output laser beam.

In addition, it is possible to treat thin and thin blood vessels, which are effectively prevented from thermal damage at the laser treatment site and which are difficult to be visually recognized during the operation, so that the practitioner can confirm the images through the image, thereby effectively treating various vascular lesions, which are difficult to perform, effectively without damaging the skin There are also some advantages.

100: main body, 110:
120: laser output unit, 130: treatment light selection unit
140: cooling gas supply unit, 150: display unit
200: handpiece, 210: first assembly
230: light transmitting portion, 240: second assembly
260: cooling control unit, 270: camera unit

Claims

A first assembly including a light transmitting part coupled to the first body part for irradiating a therapeutic laser output from the body to a lesion area of the subject;
A cooling regulator for selectively injecting a cooling gas supplied from the main body into a lesion area of the subject to cool the heat generated as the treatment laser is irradiated on the lesion area of the subject, A second assembly each of which is configured to be coupled to a second body part, And
And a fixing holder provided on the second body part and detachably fixing the second body part to the first body part,
And a second assembly is detachably coupled to the first assembly by the fixing holder.

The method according to claim 1,
And the image of the lesion region imaged by the camera unit is displayed through the display unit provided on the main body.

delete

The light-emitting device according to claim 1,
A cylinder portion to which an optical fiber for the treatment laser is connected,
A lens module provided at an end of the cylinder to optically adjust the treatment laser transmitted through the cylinder,
And a beam adjuster for adjusting the beam area of the treatment laser transmitted through the cylinder by driving the lens module to linearly move along the cylinder.

The method according to claim 1,
A through hole is formed at an end of the first body part, the through hole being spaced apart from the end of the light transmitting part by a predetermined distance and penetrating through the therapeutic laser irradiated from the light transmitting part, Further comprising: a light guiding part for guiding the treatment laser to the lesion site.

5. The method of claim 4,
Wherein the body of the lens module is configured to move together with the operation of the beam adjuster, a spiral movement guide is formed on the outer surface of the cylinder, and the body of the lens module moves along the movement guide,
Wherein the lens module is linearly moved along the cylinder while the body of the lens module is moved along the movement guide of the outer surface of the cylinder according to the operation of the beam adjuster so that the beam area can be adjusted. Handpiece of the device.

The refrigeration system according to claim 1,
A cooling chamber in which the cooling gas supplied from the main body is stored,
A spray nozzle for spraying the cooling gas stored in the cooling chamber to the lesion site,
And a control valve provided inside the cooling chamber for controlling opening and closing operations according to an electrical signal so that the cooling gas in the cooling chamber is selectively injected through the injection nozzle.

The method according to claim 1,
The main body includes a laser output portion for generating a first treatment laser of a first wavelength and a second treatment laser of a second wavelength which is different from the first wavelength,
The light-
Wherein the first treatment laser and the second treatment laser output from the main body are connected to a first optical fiber for the first treatment laser and a second optical fiber for the second treatment laser so that either one of the first treatment laser and the second treatment laser is selectively or two And at the same time irradiating the diseased part of the subject.