WO2017142247A1

WO2017142247A1 - Medical handpiece for improving beam quality using doe lens

Info

Publication number: WO2017142247A1
Application number: PCT/KR2017/001351
Authority: WO
Inventors: 류세훈
Original assignee: 주식회사 제이티에스인더스트리
Priority date: 2016-02-19
Filing date: 2017-02-08
Publication date: 2017-08-24
Also published as: KR101641856B1

Abstract

The present invention relates to a medical handpiece for improving beam quality using a DOE lens. More specifically, the present invention relates to a medical handpiece for improving beam quality using a DOE lens, wherein the medical handpiece can: improve beam quality using the DOE lens; generate rectangular beams of different sizes to improve the quality of a laser beam for treatment of skin and can thus employ a uniform rectangular beam according to the size of a lesion; prevent superposition of beams to avoid overlap between laser treatments; and pass a low-quality beam through the DOE lens at the distal end thereof to make uneven energy distribution of the beam uniform, thereby overcoming the problem of a side effect caused by a treatment and secondary care.

Description

Medical handpiece for beam quality improvement using DIO lens

The present invention relates to a medical handpiece for beam quality improvement using a DIO lens, and more particularly, to improve the beam quality using a DIO lens, and to improve the laser beam quality for skin treatment by making the beam shape in various sizes in a square shape. It is possible to use a uniform square beam according to the size of the lesion, and by eliminating overlapping parts, it is possible to prevent the overlap procedure, and at the same time, the poor quality beam is passed through the DIO lens at the end and the uneven beam quality energy is uneven. By uniformizing the distribution, the present invention relates to a medical handpiece for beam quality improvement using DIO lens that can overcome side effects and secondary treatment problems during the procedure.

Existing medical treatment laser equipment produces excellent beam quality by treating the beam quality provided through the resonator in the optics to treat the patient affected area.

In particular, in the case of ND: YAG laser, which is a pigment treatment laser, side effects due to irradiation of strong and weak areas on the treated area when energy cannot form a uniform beam quality depending on the beam quality of the laser beam irradiated to the skin (Side Effect) occurs.

Representative side effects include postinflanmatory hypcrpingmentation (PIH), which leads to a loss of healing to the affected area after a few months of secondary treatment.

On the other hand, in the treatment range of 500 ~ 1,400 nm, which is the near-infrared wavelength treatment range of the medical laser equipment, the shape of the beam quality manufactured for use as a treatment laser by constructing a laser resonator has a circular beam size of 0.5 to 15 mm in diameter. Have.

In addition, it is formed to have a uniform fluence such as a Gaussian beam (TEM00) or TopHat of a centralized shape.

However, in practice, the beam quality does not come out ideally due to the effects of errors such as ideal alignment, coating of lens elements, materials, etc. after resonator formation.

Beam quality is distorted or beam quality deformed through various transmission reflected beams to treat the patient, thus failing to form the ideal beam or TopHat beam quality.

Therefore, the energy is concentrated in the central center part, or the energy is not uniformly distributed inside the beam quality, which causes side effects in patient treatment.

As shown in FIG. 1, the overlapping procedure, that is, the overlapping procedure, is performed by again irradiating the empty space generated when the circular beam is circularly overlapped when the circular beam is irradiated to the PIH (Postinflanmatory Hypcrpingmentation). It is called.

This soon leads to a second procedure at the treatment site, which is a factor that can cause complaints.

In addition, conventionally, a method of providing a beam having a fixed array of spots such as 9 x 9 or 10 x 10 by transmitting a DOE lens to assist pigment treatment and suggesting a method of using and adjusting a uniform and uniform beam There was no way to make a square beam effective for treatment.

Therefore, the present invention improves the beam quality through the medical handpiece using the DIO lens, and by overlapping when removing the overlapped when performing the procedure to make the beam shape square shape, it is possible to prevent the overlap procedure, at the same time Proposed beam quality improvement medical handpiece using dioilen lens that can overcome the side effects and secondary treatment problems during the procedure by uniformly distributing the uneven beam quality by passing bad beam through the dioilen lens at the final stage. It is done.

Therefore, the present invention has been proposed in view of the above-described problems of the prior art, and a first object of the present invention is to improve beam quality by using a DIO lens, and to make overlapping by removing the overlapping portion by making the beam shape square. This is to prevent the procedure.

A second object of the present invention is to make the energy distribution of the beam quality uneven by passing the poor quality beam through the DIO lens at the final stage, thereby overcoming side effects and problems of secondary treatment during the procedure.

In order to achieve the problem to be solved by the present invention, the beam quality improvement medical handpiece using a DIO lens,

Barrel 100;

A focus lens unit 200 formed inside the barrel to provide laser light to a diode lens unit formed at a lower side thereof;

Coupled to the outer circumferential surface of the barrel to be moved up and down, and a DOY lens tip 300 for adjusting the distance to the barrel through the vertical movement;

The dio lens unit is formed inside the dio lens tip, and a spot array pattern is formed on the floodlight plate to provide a plurality of laser spots through the spot array pattern to the laser beam passing through the focus lens unit. 400; includes.

In addition, the dioi lens unit,

It is configured using a quartz substrate or sapphire, characterized in that to form a spot array pattern on the transmission plate through the exposure and etching process using a photomask.

Through the beam quality improving medical handpiece using the DIO lens according to the present invention having the above-described configuration and operation, the beam quality is improved by using the DIO lens, and the overlapping process is made by removing the overlapping part by making the beam shape square. The effect can be prevented.

In addition, the beam of poor beam quality is passed through the DIO lens at the final stage to uniform the energy distribution of the uneven beam quality, thereby exhibiting the effect of overcoming side effects and problems of secondary treatment during the procedure.

In addition, when using the Q-Switch Endiyag laser, which is a pigment treatment laser, the laser is irradiated to lesions having pigments (black series) distributed in dermal such as tattoo treatment (Tatto) and Nevus of Ota. As the first symptom, the color of the color and pigment system is destroyed, and various symptoms such as petechiae, purple plaque, epidermal damage, bleeding, and blistering can be treated, with uneven distribution of energy. Excessive irradiation on the treatment site with beam quality may leave other scars other than the pigment, or if the pigment in the dermis is removed after treatment and the treatment site is observed over time, the previous pigment may remain uneven. There are many cases.

Therefore, in the case of all pigment treatments, uniform beam quality is used to prevent side effects of the treatment and prevent secondary treatment, thereby achieving the effect of optimized treatment.

This may have the same problem with a laser therapy machine that requires uniform beam quality. To solve this problem, by performing a uniform beam quality and minimal overlap during treatment (a method of overlapping beams during laser treatment), a good quality laser therapy device is performed. The lesion can be treated.

1 is a view showing an example of skin damage to the circular spot of the conventional handpiece.

FIG. 2 is an overall configuration diagram of a medical handpiece for beam quality improvement using a diode lens according to an embodiment of the present invention. FIG.

3 is a cross-sectional view of a medical handpiece for beam quality improvement using a diode lens according to an embodiment of the present invention.

Figure 4 is an exemplary view showing a circular beam and a square beam at the time of adjusting the distance of the medical handpiece for beam quality improvement using the DOE lens according to an embodiment of the present invention.

FIG. 5 is a view illustrating a plurality of laser spots passing through a spot array pattern of a beam quality enhancing medical handpiece using a diode lens according to an embodiment of the present invention.

FIG. 6 is a perspective view illustrating a diode lens portion of the medical handpiece for beam quality improvement using the diode lens according to an embodiment of the present invention. FIG.

FIG. 7 is a diagram illustrating skin damage to a square spot provided through a deoilens portion of a beam quality enhancing medical handpiece using a deoilen according to an embodiment of the present invention, and FIG. Is a flowchart illustrating a process of converting a rectangular spot according to the present invention.

9 is a cross-sectional view of a beam quality improving medical handpiece using a DIO lens according to an embodiment of the present invention.

10 is an exemplary view comparing a laser spot according to the present invention with a conventional laser spot.

The following merely illustrates the principles of the invention. Therefore, those skilled in the art, although not explicitly described or illustrated herein, can embody the principles of the present invention and invent various devices that fall within the spirit and scope of the present invention.

In addition, all conditional terms and embodiments listed herein are in principle clearly intended to be understood only for the purpose of understanding the concept of the invention and are not to be limited to the specifically listed embodiments and states. do.

Means for solving the problems of the present invention are as follows.

That is, the medical handpiece for beam quality improvement using the dioi lens of the present invention,

Barrel 100;

The dio lens unit is formed inside the dio lens tip, and a spot array pattern is formed on the floodlight plate to provide a plurality of laser spots through the spot array pattern to the laser beam passing through the focus lens unit. 400; characterized in that comprises a.

On the other hand, the Dioi lens unit,

It is configured using a quartz substrate or sapphire, characterized in that the spot array pattern is formed on the transparent plate through the exposure and etching process using a photomask.

At this time, when adjusting the distance between the focus lens unit 200 and the DIO lens unit 400 to 10mm ~ 30mm,

A plurality of laser spot shape is characterized in that the circular,

When adjusting the distance between the focus lens unit 200 and the deo lens unit 400 to 31mm ~ 80mm,

The plurality of laser spot shapes are rectangular, but the rectangular size is 2 x 2 mm, 3 x 3 mm, 4 x 4 mm, 5 x 5 mm, 6 x 6 mm, 7 x 7 mm to adjust the desired size Characterized in that can be used.

In this case, the plurality of laser spots,

7 x 7 laser spot or a plurality of laser spot shape array of 11 x 11 characterized in that,

The overall shape of the laser spot is adjusted to a square shape by adjusting the distance between the focus lens unit and the diode lens unit and applied to the laser beam quality used for skin treatment, thereby eliminating overlapping portions, thereby preventing overlapping procedures. It is done.

In this case, the wavelength of the laser light is 550 ~ 1,400 nm,

The Deoi lens unit 400,

AR coating the laser light wavelength corresponding to the 550 ~ 1,400 nm to reduce the transmission loss.

Hereinafter, a detailed description will be given through an embodiment of a beam quality improving medical handpiece using the DOE lens according to the present invention.

2 to 3, the beam quality improvement medical handpiece using the dioi lens of the present invention, the barrel 100, the focus lens unit 200, the dioi lens tip 300, the dioi lens unit 400 It will be configured to include.

As shown in FIG. 4, the outer peripheral surface of the barrel 100 has a structure for coupling the vertical lens tip to be moved up and down. For example, a thread coupling method may be adopted. Alternatively, when rotated counterclockwise, the lens lens tip is moved upward or downward relative to the barrel to adjust the distance to the barrel.

The focus lens unit 200 is formed inside the barrel, and fixing means for fixing the focus lens unit may be formed along an inner circumferential surface thereof.

In the laser beam of the present invention, the size of the beam shape formed at the end of the diode lens tip 300 is determined according to the movement of the focus lens unit 200.

That is, as the focus distance is changed, the distance of the plurality of laser spots is widened to widen the array of spots, or the distance of the plurality of laser spots is narrowed to narrow the distance of the spots. This is because a square beam is formed only when constant energy is concentrated at 300.

Without the use of the focus lens unit 200 and the DI lens tip 300, it is impossible to form the shape of the square beam by adjusting the spacing of the plurality of laser spots.

Accordingly, the proper distance is changed in the focus lens unit 200 to transmit the DIO lens unit 400 and to provide a configuration for adjusting the DIO lens tip 300 distance together so that a square beam is made.

At this time, the focus lens unit is formed by inverting the hemispherical convex lens, it is to provide the incoming laser light to the diode lens portion formed on the lower side.

Here, the laser light is a medical laser light source to coat a predetermined wavelength band for skin treatment to provide an output suitable for a single laser, Er: YAG laser, Nd: YAG laser and the like can be used.

In addition, the diode lens tip 300 is coupled to move up and down on the outer circumferential surface of the barrel, preferably a screw thread or screw groove is formed to move up and down along the outer circumferential surface of the barrel.

Therefore, the distance to the barrel is adjusted through the vertical movement.

As shown in FIG. 6, the diode lens unit 400 is formed inside the diode lens tip, and the spot array pattern 420 is formed on the floodlight plate 410.

Therefore, the laser light passing through the focus lens unit is provided to the plurality of laser spots passing through the spot array pattern to the treatment object 10. In this case, the focus lens unit 200 and the DIO lens tip 300 are externally provided. By adjusting the distance between them, the square beam is made, and the output is possible without overlapping with the circular beam.

At this time, the dioi lens unit of the present invention,

Assuming that the two-dimensional spots shown in FIG. 5 are a single subject and a Fourier transform function for the subject is computed by a computer, a complex two-dimensional pattern appears.

The diode lens unit is a lens for forming a spatial phase difference on a thin plate that can transmit the laser light by changing the spatial amplitude of the pre-calculated pattern using an exposure and etching process using a photomask.

Accordingly, a feature of the present invention is that the diode lens portion is configured using a quartz substrate or sapphire, so that the spot array pattern is formed on the light transmitting plate through an exposure and etching process using a photomask.

That is, it must be configured using a quartz substrate or sapphire material, it is possible to lower the loss ratio 50% of the conventional lens to 10% loss ratio.

Therefore, the diode lens portion of the present invention should be configured using a quartz substrate (Quartz Wafer) or sapphire (Sapphire).

Because the material determines the wavelength, the quartz substrate or sapphire should be used in order to use the wavelength of 500-1400 nm, which is the most preferable wavelength.

When the distance between the focus lens unit 200 and the diode lens unit 400 of the present invention is adjusted to 10 mm to 30 mm, a plurality of spot-shaped arrangement intervals may occur to create a density capable of forming a square beam. It becomes possible.

However, the beam shape for treating a skin lesion such as a laser for skin treatment such as a Nd: YAG laser has a better beam quality than a circular shape, and the energy distribution of the square beam is uniform as shown in FIG. It is possible to provide uniform beam quality even with poor beam quality flowing through the unit.

The beam passing through the DIO lens unit 400 provides a plurality of laser spots to the treatment object at regular intervals to have a uniform energy distribution.

On the other hand, when the distance between the focus lens unit 200 and the DOE lens unit 400 is adjusted to 31mm ~ 80mm,

Changes in the plurality of spot-shaped arrangement intervals may occur to create a density capable of forming a square beam.

That is, the distance between the focus lens unit 200 and the DIO lens unit 400 is appropriately adjusted to transform into a highly dense rectangular beam, but the square size is 2 x 2 mm, 3 x 3 mm, 4 x 4 It can be used to adjust the desired size of mm, 5 x 5 mm, 6 x 6 mm, 7 x 7 mm.

At this time, if the distance is out of the square size can not be formed to obtain a uniform beam quality.

In other words, when the handpiece is rotated to adjust the distance between the dio lens unit and the focus lens unit to form a rectangular beam, it is possible to provide a uniform beam quality even with an unfavorable beam quality.

In summary, by manufacturing a mechanism that can mechanically adjust the distance between the focus lens unit, the deo lens unit and the treatment target of the deo lens tip can produce a square beam as shown in Figure 8, You can also change the size.

At this time, the energy distribution of the outgoing square beam is uniform (from poor beam quality).

In this case, it is preferable to provide the most preferable rectangular size beam when maintaining the above distance.

In addition, FIG. 8 illustrates a process of deforming into a beam having a high density by adjusting the distance between the focus lens unit, the DI lens unit, and the DI lens tip through the device of the present invention. ① items, ② items, ③ If you adjust the distance from the item, item ④, it is transformed from circle to rectangle according to the distance, and the size and size are determined according to the adjustment distance.

In particular, the plurality of laser spots,

It is characterized in that it has a plurality of laser spot shape arrangement, such as 7 x 7 laser spot or 11 x 11.

That is, it provides a laser spot based on a plurality of rectangular arrays, such as a 7 x 7 laser spot or an 11 x 11 laser spot, and adjusts the distance between the focus lens unit 200 and the diode lens unit 400 to adjust the density. By transforming into a square beam, which is a high rectangle, square beams of various sizes can be produced.

As a result, the beam quality formed on the treatment target can be adjusted to the same energy as the size, and preferably, by forming a square beam, this can be solved, thereby increasing the therapeutic effect significantly.

That is, by adjusting the distance between the focus lens unit and the diode lens unit, the overall shape of the laser spot is formed into a quadrangular shape, thereby eliminating the overlapping portion, thereby providing a feature that can prevent the overlap procedure.

On the other hand, the wavelength of the preferred laser light of the present invention is 550 ~ 1,400 nm, the diode lens unit 400, characterized in that to reduce the transmission loss by AR (Anti reflection Coating) coating the laser light wavelength of 550 ~ 1,400 nm. It is done.

For example, by AR coating a laser light wavelength of 550 to 1,400 nm, the transmission loss can be reduced by about 10% to 15%.

On the other hand, as shown in Figure 9, the beam quality improvement medical handpiece using the DOY lens according to this embodiment of the present invention,

In the medical handpiece for beam quality improvement,

Barrel 100;

It is coupled to move up and down on the inner circumferential surface of the barrel, Deoi lens tip 300 for adjusting the distance to the barrel through the vertical movement;

It is formed at the end of the lens lens tip, and is formed between the lens lens tip and the focus lens portion, a spot array pattern is formed on the floodlight plate, the laser beam passing through the focus lens unit to the spot array pattern to the treatment object Deoi lens unit 400 for providing a plurality of laser spots passed; characterized in that comprises a,

When the focus lens unit is configured to move up and down, the distance between the focus lens unit 200 and the diode lens unit 400 may be adjusted to 10 to 30 mm up and down to provide a plurality of circular laser spot shapes. Features,

By moving the Deoi lens tip up and down to adjust the distance between the focus lens unit 200 and the Deoi lens unit 400 up and down 5 ~ 50mm,

Transform into a dense rectangular beam, with square sizes of 2 x 2 mm, 3 x 3 mm, 4 x 4 mm, 5 x 5 mm, 6 x 6 mm, 7 x 7 mm and 8 x 8 mm. It can be used.

That is, in this embodiment of FIG. 9, the focus lens unit 200 is formed inside the barrel to provide the laser light to the diode lens unit formed at the lower side thereof.

For example, if the connecting member 70 is configured to move up and down at the end of the focus lens unit, and a slide groove is formed along the outer circumferential surface of the barrel, the focus lens unit may be moved up and down from the outside.

At this time, the constituent means for moving the focus lens unit up and down will be sufficiently derived by those skilled in the art in addition to the above examples.

On the other hand, the dioi lens unit 400 is formed on the end of the dioi lens tip, if provided with a screw coupling method as an embodiment, the dioi lens tip will be variable up and down.

Therefore, when the DI lens tip is moved up and down, the DI lens portion formed at the end of the DI lens tip is moved up and down, wherein the distance between the focus lens unit 200 and the DI lens unit 400 is adjusted to 5 to 50 mm up and down. In order to provide a plurality of rectangular laser spot shapes.

On the other hand, '19' shown in Figure 9 means a preferred interval between the end portion of the diode lens tip and the diode lens portion.

Then, safety glass is formed at the end of the DIO lens tip.

And, in this embodiment as described above by adjusting the distance between the focus lens portion and the Deoi lens portion and the Deoi lens tip 300, the overall shape of the laser spot to form a rectangular shape to remove the overlapping procedure, Characterized in that can be prevented.

In addition, as shown in FIG. 10, in the conventional method, although a spot having a circular state having a plurality of fixed arrangements is provided, in the present invention, an advantage that can be changed to a square beam and a uniform quadrangle can be adjusted The advantage of providing a beam is achieved.

On the other hand, in the prior art, the emphasis was made on the treatment by making a hole fixed with a DIO lens, in the case of the present invention by adjusting the distance between the DI lens and the focus lens to change the beam shape to a square, the energy distribution in the beam quality By providing evenly and at the same time to change the size of the beam output to the square to be used in the treatment, it prevents side effects and secondary procedures in the conventional treatment provides an excellent effect in the skin treatment.

Through the configuration and operation as described above, the beam quality is improved by using the DOE lens, and the beam shape is made into a quadrangular shape and the overlapping part is removed, thereby preventing the overlap procedure.

In addition, the beam of poor quality is passed through the DIO lens at the final stage to uniform the energy distribution of the uneven beam quality, and the high density square beam is adjusted by appropriately adjusting the distance between the focus lens unit, the DI lens and the DI lens tip. By transforming to the side effect and the problem of overcoming the problem of secondary care will be exerted.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described specific embodiment, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

100: barrel

200: focus lens unit

300: DI O lens tip

400: Deo lens unit

Claims

In the medical handpiece for beam quality improvement,

Barrel 100;

A focus lens unit 200 formed inside the barrel to provide laser light to a diode lens unit formed at a lower side thereof;

Coupled to the outer circumferential surface of the barrel to be moved up and down, and a DOY lens tip 300 for adjusting the distance to the barrel through the vertical movement;

The dio lens unit is formed inside the dio lens tip, and a spot array pattern is formed on the floodlight plate to provide a plurality of laser spots through the spot array pattern to the laser beam passing through the focus lens unit. (400); Medical handpiece for beam quality improvement using a DOE lens, characterized in that comprising a.
In the medical handpiece for beam quality improvement,

Barrel 100;

A focus lens unit 200 formed inside the barrel to provide laser light to a diode lens unit formed at a lower side thereof;

Coupled to the outer circumferential surface of the barrel to be moved up and down, and a DOY lens tip 300 for adjusting the distance to the barrel through the vertical movement;

The dio lens unit is formed inside the dio lens tip, and a spot array pattern is formed on the floodlight plate to provide a plurality of laser spots through the spot array pattern to the laser beam passing through the focus lens unit. 400, including;

The dioi lens unit,

A medical handpiece for beam quality improvement using a DIO lens, comprising a quartz substrate or sapphire, wherein a spot array pattern is formed on a transmission plate through an exposure and etching process using a photomask.
In the medical handpiece for beam quality improvement,

Barrel 100;

A focus lens unit 200 formed inside the barrel to provide laser light to a diode lens unit formed at a lower side thereof;

It is coupled to move up and down on the inner circumferential surface of the barrel, Deoi lens tip 300 for adjusting the distance to the barrel through the vertical movement;

It is formed at the end of the lens lens tip, and is formed between the lens lens tip and the focus lens portion, a spot array pattern is formed on the floodlight plate, the laser beam passing through the focus lens unit to the spot array pattern to the treatment object Deoi lens unit 400 for providing a plurality of laser spots passed; characterized in that comprises a,

When the focus lens unit is configured to move up and down, the distance between the focus lens unit 200 and the diode lens unit 400 may be adjusted to 10 to 30 mm up and down to provide a plurality of circular laser spot shapes. Features,

By moving the Deoi lens tip up and down to adjust the distance between the focus lens unit 200 and the Deoi lens unit 400 up and down 5 ~ 50mm,

Characterized by providing a plurality of rectangular laser spot shapes, wherein the square size is 2 x 2 mm, 3 x 3 mm, 4 x 4 mm, 5 x 5 mm, 6 x 6 mm, 7 x 7 mm, 8 x A medical handpiece for beam quality improvement using a DIO lens, characterized in that it is used in any desired size of 8 mm.
The method according to claim 1 or 2,

When adjusting the distance between the focus lens unit 200 and the deo lens unit 400 to 10mm ~ 30mm,

A plurality of laser spot shape is characterized in that the circular,

When adjusting the distance between the focus lens unit 200 and the deo lens unit 400 to 31mm ~ 80mm,

The plurality of laser spot shapes are rectangular, but the rectangular size is 2 x 2 mm, 3 x 3 mm, 4 x 4 mm, 5 x 5 mm, 6 x 6 mm, 7 x 7 mm, 8 x 8 mm A medical handpiece for beam quality improvement using a diode lens, characterized in that it is used in any one of the desired size.
The method according to any one of claims 1 to 3,

The arrangement of the plurality of laser spots,

Characterized by having a 7 x 7 laser spot or an 11 x 11 laser spot shape arrangement,

The overall shape of the laser spot is adjusted to a square shape by adjusting the distance between the focus lens unit and the deoi lens unit to remove the overlapping portion differently from the circular beam during treatment, thereby preventing the overlap procedure Medical handpiece for beam quality improvement.
The method according to any one of claims 1 to 3,

The wavelength of the laser light is 550 ~ 1,400 nm,

The Deoi lens unit 400,

Beam quality improvement medical handpiece using a Dioi lens, characterized in that for reducing the transmission loss by AR coating the laser light wavelength of 550 ~ 1,400 nm.