KR100624660B1 - A laser apparatus output able to multi laser beam - Google Patents

Abstract

The present invention can not only output three wavelengths as a single laser device, but also simultaneous oscillation or time difference oscillation of two wavelengths can simultaneously perform the treatment region of each wavelength, thereby improving the treatment effect and the treatment efficiency. It can improve the quality of medical service by bringing down the treatment time and bring new clinical area, and it is possible to replace the functions of many existing equipments as a single device to reduce the cost and to reduce the space occupancy so that it is easy to manage and maintain. The present invention relates to a laser device capable of outputting a multi-laser beam.

According to the present invention, a beam of a predetermined wavelength generated from an active medium is reflected by a total reflection mirror and is incident on the active medium to reach a partial reflection mirror, and a portion of the beam is reflected back and amplified by the active medium to A laser device comprising a resonator in which a laser beam is generated and an output unit in which a laser beam having a predetermined wavelength generated by the resonator is converged by an aspherical convex lens and incident on an optical fiber, the first total reflection mirror and a first active medium A first resonator comprising a first partial reflection mirror and generating a beam having a first wavelength, and transmitting or reflecting the beam according to the wavelength between the first total reflection mirror of the first resonator and the first active medium to separate the beam. A beam splitting mirror installed for the second half to share the first active medium and the first partial reflection mirror with the first resonator through the beam splitting mirror; A third resonator configured to include a mirror and including a second resonator for generating a second wavelength beam, a third total reflection mirror, a second active medium, and a second partial reflection mirror and generating a third wavelength beam; A beam combining mirror that transmits the beams generated by the first resonator and the second resonator to the output unit and reflects the beams generated by the third resonator to the output unit, and is generated in the first resonator, the second resonator, and the third resonator. And a beam path shielding control means for selectively opening or blocking a path of the beam so that a beam of one wavelength or a beam of two wavelengths is selectively output from the three wavelength beams at the same time.

Description

Laser equipment capable of outputting multiple laser beams {A LASER APPARATUS OUTPUT ABLE TO MULTI LASER BEAM}

1 is a schematic view showing a configuration of the present invention

2 is a block diagram of an embodiment of the present invention

Figure 3 is a state of use of Figure 2

4 is another working state of FIG.

5 is another working state of FIG. 2

6 is another working state of FIG.

7 is another working state of FIG. 2

8 is a block diagram of a prior art

* Explanation of symbols for the main parts of the drawings

1: laser apparatus capable of outputting a multi-laser beam of the present invention

10: first resonator 11: first active medium 13: first total mirror

15: first partial reflection mirror 20: second resonator 23: second total reflection mirror

30: third resonator 31: second active medium 33: third total reflection mirror

35: second partial reflection mirror 40: output portion 41: aspherical convex lens

43: optical fiber 51 to 54: first to fourth shutter

61: beam separation mirror 63: beam combining mirror 65: beam transmission mirror

B1: first wavelength B2: second wavelength B3: third wavelength

The present invention relates to a laser device, and in particular, as one device can not only output three wavelengths each, but also simultaneous oscillation or time difference oscillation of the two wavelengths can be performed simultaneously to the treatment area of each wavelength treatment effect And improve treatment efficiency, shorten the procedure time, improve the quality of medical service, bring new clinical areas, and replace the functions of many existing equipment as a single device to reduce costs and reduce space occupancy And it relates to a laser device capable of outputting a multi-laser beam remarkably easy to maintain.

In general, laser equipment used in medical fields is used as a surgical scalpel without bleeding by shooting low-energy laser beams and burning the skin slightly, or by shooting high-energy laser beams, and burning corneas very thinly. This is especially true in LASIK surgery to control the thickness of the lice.

As shown in FIG. 8, the conventional medical laser equipment 100 may be roughly divided into a resonator 110 and an output unit 140, and may be formed of a predetermined wavelength generated from the active medium 111 of the resonator 110. The beam is reflected by the total reflection mirror 113 and is incident again into the active medium 111 to reach the partial reflection mirror 115. The beam that reaches the partial reflection mirror 115 is then reflected amplified back into the active medium 111 and the other part is transmitted. Through this process, a beam having a predetermined wavelength is generated in the resonator 110, and the laser beam having the predetermined wavelength is converged by the aspherical convex lens 141 of the output unit 140 and is incident and output to the optical fiber 143. .

The wavelength of the beam generated from such laser equipment should be differentially output according to the surgical site or disease.

In addition, the two wavelengths are output at the same time or the two wavelengths are output to each other organically at a time difference can increase the clinical effect.

However, in the prior art, since the laser beam has a structure in which only a single wavelength is output, in the medical field, various laser equipments having different output wavelengths have to be equipped for various procedures.

As a result, the procedure is delayed and the cost burden is enormously wasted, and occupying a lot of space occupies a lot of troublesome storage management and handling.

On the other hand, although a technique capable of outputting two wavelengths has been proposed, a technique in which three or more wavelengths or two wavelengths are oscillated and output at the same time or with a time difference remains a problem of the medical device system.

The present invention has been made to solve the above problems,

The object of the present invention is not only to output three wavelengths as a single laser device, but also to simultaneously or two time oscillation of the two wavelengths can be performed simultaneously to the treatment area of each wavelength treatment effect, treatment efficiency The present invention provides a laser device capable of outputting a multi-laser beam that can improve the quality of medical service by improving the treatment time and shortening the procedure time and bringing a new clinical area.

Another object of the present invention is to provide a laser device capable of outputting a multi-laser beam to replace the functions of various existing equipments as a single device to reduce costs and to reduce the space occupancy so that it is easy to manage and maintain.

In the laser apparatus capable of outputting a multi-laser beam according to the present invention which achieves the above object, a beam of a predetermined wavelength generated from an active medium is reflected by a total reflection mirror and is incident on the active medium to reach a partial reflection mirror and a part thereof And a resonator in which the laser beam of the wavelength is generated by the rereflection and amplification of the active medium, and an output unit in which the laser beam of the predetermined wavelength generated by the resonator is converged by the aspherical convex lens and incident on the optical fiber. In

A first resonator comprising a first total reflection mirror, a first active medium, and a first partial reflection mirror and generating a beam having a first wavelength;

A beam separation mirror installed between the first total reflection mirror and the first active medium of the first resonator to separate the beam by reflecting the wavelength according to the wavelength;

A second resonator including a second total reflection mirror configured to share the first active medium and the first partial reflection mirror with a first resonator through the beam separation mirror, and generate a beam having a second wavelength;

A third resonator including a third total reflection mirror, a second active medium, and a second partial reflection mirror and generating a beam having a third wavelength;

A beam combining mirror for transmitting the beams generated by the first resonator and the second resonator to the output unit and reflecting the beams generated by the third resonator to the output unit; And

For opening or blocking the path of the beam such that a beam of any wavelength or a beam of two wavelengths is selectively output from three beams generated by the first resonator, the second resonator, and the third resonator at the same time. Beam path shielding control means; characterized in that it comprises a.

Hereinafter, an embodiment of a laser apparatus capable of outputting a multi-laser beam of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic view showing the present invention, Figure 2 shows an embodiment according to the present invention.

1 and 2, the laser device capable of outputting a multi-laser beam according to the present invention 1 is a beam of a predetermined wavelength generated from the active medium is reflected by the total reflection mirror and is incident to the active medium again part A resonator that reaches a reflecting mirror and partially reflects back to the active medium to generate a laser beam of the wavelength, and a laser beam of a predetermined wavelength generated by the resonator are converged by the aspherical convex lens 41 to form an optical fiber. In the laser equipment comprising an output unit 40 incident to (43),

A first resonator (10) comprising a first total reflection mirror (13), a first active medium (11), and a first partial reflection mirror (13) and generating a first wavelength beam (B1), wherein the first A beam splitting mirror 61 and a beam splitting mirror 61 which are installed between the first total reflection mirror 13 and the first active medium 11 of the resonator 10 to transmit or reflect the beam according to the wavelength. The second total reflection mirror 23 is configured to share the first active medium 11 and the first partial reflection mirror 15 with the first resonator 10 through the beam B2 of the second wavelength. And a second resonator 20, a third total reflection mirror 33, a second active medium 31, and a second partial reflection mirror 35, which generate the third wavelength beam B3. The beam generated by the third resonator 30, the first resonator 10, and the second resonator 20 is transmitted to the output unit 40, and the beam generated by the third resonator 30 is output to the output unit 40. Beam combining mirror 63 and the first hole to reflect A beam of one wavelength or a beam of two wavelengths is selectively output through the output unit 40 simultaneously among the beams of three wavelengths generated by the first resonator 10, the second resonator 20, and the third resonator 30. It is configured to include a beam path shielding control means 50 for opening or blocking the path of the beam.

In this case, the first active medium 11 and the second active medium 31 are made of endadig (Nd: YAG).

Preferably, the first wavelength B1 is 1064 nm, the second wavelength B2 is 1320 nm, and the third wavelength B3 is 1440 nm.

In addition, the first wavelength (B1-1064nm), the second wavelength (B2-1320nm), the third wavelength (B3-1440nm) is known to have different therapeutic effects in a specific clinical area individually or in combination.

In one embodiment according to the present invention, the beam path shielding control means 50, the first shutter 51 is provided to open and close between the first total reflection mirror 13 and the beam separation mirror 61, Between the second shutter 52 provided to open and close between the first active medium 11 and the first partial reflection mirror 15, and between the second active medium 31 and the second partial reflection mirror 35. The third shutter 53 is provided to open and close the control, the fourth shutter 54 is provided to open and close between the beam coupling mirror 63 and the aspherical convex lens 41, and controls the respective shutters The control unit (not shown) is configured, and the first to fourth shutters 54 to 54 include a solenoid valve.

In addition, the first shutters 51 to the fourth shutters 54 are successively output by the control unit at least two wavelengths of at least two wavelengths of the three wavelengths by one wavelength, or the first shutters B1 and the fourth shutters 54. The beam of three wavelengths B3 or the beams of the second wavelength B2 and the third wavelength B3 may be controlled to be output at a time difference.

That is, any one of the three wavelength laser beams are output, one wavelength is output at a time difference, or two wavelengths are output at the same time or two wavelengths are output in a pulse form.

The beam splitting mirror 61 transmits the first wavelength B1 in a 45 ° tilted state, and the second wavelength B2 is configured to totally reflect.

In addition, a beam transmission mirror 65 for reflecting and transmitting the beam B3 of the third wavelength generated by the third resonator 30 to the beam combining mirror 63 may be further provided.

In the beam combining mirror 63, the beam B1 of the first wavelength and the beam B2 of the second wavelength are transmitted in a state where the beam combining mirror 63 is inclined, and the third wavelength B3 is configured to be totally reflected. Do.

Looking at the preferred embodiment of the components with reference to FIG. 2 as follows.

The first total reflection mirror 13 is formed to totally reflect the 1064 nm wavelength of the first wavelength B1 (1064 nm HR, HR: High Reflection), and the second total reflection mirror 23 is 1320 nm of the second wavelength B2. It is formed to be totally reflected (1320 nm HR).

The beam splitting mirror 61 transmits the first wavelength (1064 nm) B1 in a 45 ° tilted state (AR @ 1064 nm, 45 °, AR: Anti Reflection), and the second wavelength (1320 nm) ( B2) is formed to total reflection (HR @ 1320nm, 45 °),

The first partial reflection mirror 15 is formed to reflect 50% of the first wavelength B1 and 70% of the second wavelength B2 (R = 50% @ 1064nm, R = 70% @ 1320nm, R). : Reflection), the rest is formed to transmit.

In addition, the third total reflection mirror 31 of the third resonator 30 is the total reflection of the third wavelength (1440nm) (B3), the first wavelength (1064nm) (B1) reflects less than 20%, the second wavelength (1320nm) ) Is formed to reflect less than 50% (1440 nm HR, 1064 nm R <20%, 1320 nm R <50%),

The second partial reflection mirror 35 reflects 85% of the third wavelength B3, reflects 20% or more of the first wavelength B1, and reflects 50% or more of the second wavelength (1320 nm) B2. (R = 85% @ 1440 nm, R <20% @ 1064 nm, R <50% @ 1320 nm), and the rest is formed to transmit.

The beam combining mirror 63 transmits the first wavelength B1 and the second wavelength B2 while being inclined at 45 ° (AR @ 1064 nm & 1320 nm 45 °), and the third wavelength B3 is It is formed to be totally reflected at right angles (AR @ 1064 & 1320 nm 45 °, HR @ 1440 nm 45 °), the beam transmission mirror 65 is formed to totally reflect the third wavelength (B3) in a 45 ° inclined state. (HR @ 1440 nm 45 °).

The requirement of the mirrors is made by a coating material coated on the optical glass.

It looks at the working state of the laser device (1) capable of outputting a multi-laser beam according to the present invention having such a configuration.

According to the present invention, laser beams having three wavelengths different from each other in the first wavelength B1, the second wavelength B2, and the third wavelength B3 are oscillated in the form of pulses in one device.

1.When oscillating only the first wavelength (1064nm) (B1):

The third shutter 53 is blocked and the remaining first shutter 51, second shutter 52, and fourth shutter 54 are opened (see FIG. 3).

As such, when only the third shutter 53 is blocked, the third resonator 30 is blocked while the first active medium 11 is blocked. The beam is reflected back by the first total reflection mirror 13 and is again applied to the first shutter. The beam incident on the active medium 11 and reaching the first partial reflector 15 is partially amplified back to the first active medium 11 and the rest is transmitted. Through this process, a beam (1064 nm) B1 having a first wavelength is generated and transmitted through the beam combining mirror 63 and converged by the aspherical convex lens 41 of the output part 40 to the optical fiber 43. Incident.

At this time, the second wavelength beam (1320nm) (B2) oscillated from the second total reflection mirror 23 is the beam of the first wavelength (1064nm) (B1) by the characteristics of the Nd: YAG laser beam as the first active medium Only output

2. When oscillating only the second wavelength 1320 (B2):

The first setter 51 and the third shutter 53 are blocked and the second shutter 52 and the fourth shutter 54 are opened (see FIG. 4). As a result, while the first resonator 10 and the third resonator 30 of the first total reflection mirror 13 are blocked, the beam generated from the first active medium 11 is transmitted to the second total reflection mirror 23. The beam is reflected back and incident to the first active medium 11 again and reaches the first partial reflector 15. The beam is partially amplified back to the first active medium 11 and the rest is transmitted. Through this process, the second wavelength beam 1320nm (B2) is generated, and passes through the beam combining mirror 63 and is incident to the output unit 40.

3. When oscillating only the third wavelength (1440nm) (B3):

The first setter 51 and the second shutter 52 are blocked, and the third and fourth shutters 53 and 54 are opened (see FIG. 5). As a result, the first resonator 10 and the second resonator 20 are blocked, and the beam generated from the second active medium 31 is reflected back by the third total reflection mirror 33, and again the second active medium ( 31, the beam having reached the second partial reflector 35 is reflected and amplified by the second active medium 31, and the rest of the beam is transmitted to the third wavelength beam (1440 nm) (B3). It is generated and transmitted through the beam combining mirror 63 is incident to the output unit 40.

4. When oscillating the first wavelength (1064nm) (B1) and the third wavelength (1440nm) (B3) simultaneously:

All of the first and fourth shutters 54 to 54 are opened (see FIG. 6). As a result, the beams B1 and B3 having two wavelengths generated from the first resonator 10 and the third resonator 30 are simultaneously incident to the output unit 40 via the beam combining mirror 63. .

5. When oscillating the second wavelength (1320nm) (B2) and the third wavelength (1440nm) (B3) simultaneously:

In the state in which the first shutter 51 is blocked, all of the remaining second and fourth shutters 54 to 54 are opened (see FIG. 7). In this case, beams B2 and B3 having two wavelengths generated from the second resonator and the third resonator are simultaneously incident to the output unit 40 through the beam combining mirror 63.

6. In addition, it can be controlled to be oscillated in succession by one wavelength or oscillated in time as well as simultaneous oscillation when two wavelengths are generated, as in the example of Nos. 4 and 5.

As described above, the present invention not only outputs three wavelengths in one equipment, but also outputs the two wavelengths at the same time or with a time difference or one time difference as in the above 4, 5, and 6 examples. You can.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As described in detail above, the laser device capable of outputting a multi-laser beam according to the present invention can output three wavelengths as one laser device, and also enables simultaneous oscillation or time difference oscillation of two wavelengths. The treatment area can be performed at the same time, thereby improving the treatment effect, treatment efficiency, and shortening the procedure time, thereby improving the quality of medical service, and bringing an excellent clinical area.

In addition, by replacing the functions of many existing equipment as a single device has the advantage of reducing the cost and space occupancy is significantly easier to manage and maintain.

Claims (8)

A resonator in which a beam of a predetermined wavelength generated from an active medium is reflected by a total reflection mirror and is incident on the active medium to reach a partial reflection mirror, and a portion of the beam is reflected back and amplified by the active medium to generate a laser beam of the wavelength. In the laser device is configured to include a laser beam of a predetermined wavelength generated by the resonator converging by the aspherical convex lens 41, the output unit 40 is incident on the optical fiber 43, A first resonator 10 including a first total reflection mirror 13, a first active medium 11, and a first partial reflection mirror 13 and generating a beam B1 having a first wavelength; A beam separation mirror (61) installed between the first total reflection mirror (13) of the first resonator (10) and the first active medium (11) for transmitting or reflecting the beam according to the wavelength; And a second total reflection mirror 23 which shares the first active medium 11 and the first partial reflection mirror 15 with the first resonator 10 through the beam separation mirror 61. A second resonator 20 generating a beam B2 having a wavelength; A third resonator 30 including a third total reflection mirror 33, a second active medium 31, and a second partial reflection mirror 35 and generating a third wavelength beam B3; Beam coupling for transmitting the beams generated by the first resonator 10 and the second resonator 20 to the output unit 40 and reflecting the beams generated by the third resonator 30 to the output unit 40 Mirror 63; And Among the three wavelength beams generated by the first resonator 10, the second resonator 20, and the third resonator 30, beams of any one wavelength or beams of two wavelengths simultaneously operate the output unit 40. And a beam path shielding control means (50) for opening or blocking the path of the beam to be output through the multi-laser beam output capable laser device. The method of claim 1, The first active medium (11) and the second active medium (31) is a laser device capable of outputting a multi-laser beam, characterized in that made of Nd Yag (Nd: YAG). The method of claim 1, Wherein the first wavelength (B1) is 1064nm, the second wavelength (B2) is 1320nm, the third wavelength (B3) is 1440nm. The method of claim 1, The beam path shielding control means (50) includes: a first shutter (51) provided to open and close between the first total reflection mirror (13) and the beam separation mirror (61), and the first active medium (11); The second shutter 52 is provided to open and close between the first partial reflection mirror 15, and the third shutter is provided to open and close between the second active medium 31 and the second partial reflection mirror 35. (53), a fourth shutter (54) provided to open and close between the beam combining mirror (63) and the aspherical convex lens (41), and a control unit for controlling the respective shutters, The first shutter (51) to the fourth shutter (54) is a laser device capable of outputting a multi-laser beam, characterized in that it comprises a solenoid valve.  The method of claim 4, wherein The first shutters 51 to the fourth shutters 54 are successively output by the control unit at least two or more wavelengths of the three wavelengths by one wavelength, or are sequentially outputted with the first wavelength B1 and the third wavelength. The laser device capable of outputting a multi-laser beam, characterized in that the beam of (B3) or the beam of the second wavelength (B2) and the third wavelength (B3) is controlled to be output at a time difference. The method of claim 1, The beam splitting mirror (61) transmits the first wavelength (B1) in a state inclined 45 °, the second wavelength (B2) is a laser device capable of outputting multiple laser beams, characterized in that configured to total reflection. The method of claim 1, Multi-laser beam output laser, characterized in that the beam transmission mirror 65 is further provided for reflecting and transmitting the beam B3 of the third wavelength generated by the third resonator 30 to the beam combining mirror 63 equipment. The method of claim 1, The beam combining mirror 63 is configured to transmit the beam B1 of the first wavelength and the beam B2 of the second wavelength in a state in which the beam combining mirror 63 is inclined, and the third wavelength B3 is configured to be totally reflected. Laser equipment capable of outputting multiple laser beams.

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