KR101349122B1 - An optical device for surgery and an method for controlling thereof - Google Patents

Abstract

Disclosed are a photosurgical apparatus and a control method thereof in which light is not absorbed into a body fluid and is irradiated to a tissue.
The optical surgery apparatus according to the present invention is a light generating unit for generating a first light and a second light and the first light is irradiated into the body to form a bubble in the incident portion of the first light, the second light is the It includes a control unit for controlling to pass through the inside of the bubble to irradiate the abnormal tissue.

Description

Optical surgery apparatus and its control method {AN OPTICAL DEVICE FOR SURGERY AND AN METHOD FOR CONTROLLING THEREOF}

The present invention relates to an optical surgical device and a control method thereof, and more particularly, to an optical surgical device and a control method thereof used to cut abnormal tissue in the body using light.

Recently, instead of a method of inserting various surgical instruments into the body, a procedure using an optical surgical device for irradiating a laser into the body through an optical fiber has been in the spotlight.

The optical surgical device is applied to various procedures such as cutting or bleeding abnormal tissue in the body by using absorption characteristics according to the wavelength of the laser. The lasers used in the optical surgery apparatus include Nd: YAG lasers, KTP lasers, Erbium lasers, CO2 lasers, Hoyag lasers, Lasers in various wavelength bands, such as Ruby lasers and Alexandrite lasers, are used. Such optical surgery apparatus has already been disclosed by "Korea Patent Registration No. 10-0996733; light irradiation apparatus for high power laser treatment device".

On the other hand, many parts of the body, such as between the peritoneum and the intestines, are filled with body fluids. However, when the laser is absorbed into the body fluid, the body fluid is heated, and heat is transferred to the vicinity of the abnormal tissue by the heated body fluid, thereby damaging the normal tissue.

Republic of Korea Patent No. 10-0996733 (Nov. 19, 2010 registration)

It is an object of the present invention to provide an optical surgery apparatus and a control method thereof in which light is not absorbed into a body fluid and is irradiated to a tissue.

The optical surgery apparatus according to the present invention is a light generating unit for generating a first light and a second light and the first light is irradiated into the body to form a bubble in the incident portion of the first light, the second light is the A control unit for controlling the incident to the tissue passing through the inside of the bubble.

The controller may be controlled to scan the second light for a longer time than the first light.

The controller may control the second light to have a larger pulse width than the first light.

The light generator may include a first light generator for generating the first light and a second light generator for generating the second light.

The optical surgery apparatus may further include a first shutter disposed on a path of the first light to intercept the first light and a second shutter disposed on a path of the second light to intercept the second light.

The controller may control opening and closing operations of the first shutter and the second shutter.

The optical surgery apparatus is disposed in a path of the first light passing through the first shutter to pass the first light and to reflect the second light, and to a path of the second light passing through the second shutter. It may further include a guide mirror disposed to guide the second light to the beam splitter and an optical fiber connected to a path of the first light or the second light passing through the beam splitter.

The optical surgery apparatus includes a first optical fiber connected to a path of the first light passing through the first shutter and a second optical fiber separated from the first optical fiber and connected to a path of the second light passing through the second shutter. It may further include an optical fiber.

The photosurgical apparatus may further include a bubble protective layer for forming a film on the outside of the bubble to prolong the time that the bubble is maintained, so that the time for introducing the body fluid toward the bubble is delayed.

The first light may be any one of an erbium laser (Er: YAG laser) and a carbon dioxide laser (CO2 laser), and the second light may be an endylag laser (Nd: YAG laser).

On the other hand, in the control method of the optical surgery apparatus according to an embodiment of the present invention, the light is separated into a first light and a second light according to the light generating step and the pulse width of the light is generated from the light generating unit, And controlling the first light to be irradiated into the body so that a bubble is formed at an incident portion of the first light, and the second light is incident to tissue through a space formed by the bubble.

In the controlling step, the pulse width of the light may be controlled so that the second light is scanned for a longer time than the first light.

On the other hand, the control method of the optical surgery apparatus according to another embodiment of the present invention includes a light generating step of generating the first light and the second light from the first light generator and the second light generator and the first light into the body A first beam disposed on the first light path and the second light path so that a bubble is formed at an incident portion of the first light, and the second light passes through a space formed by the bubble and is incident on a tissue; And controlling the opening and closing of the shutter and the second shutter.

In the controlling step, opening and closing of the first shutter and the second shutter may be controlled so that the first light is irradiated for a first time and the second light is irradiated for a second time.

In the controlling step, the second time may be controlled longer than the first time.

The first light may be any one of an erbium laser (Er: YAG laser) and a carbon dioxide laser (CO2 laser), and the second light may be an endylag laser (Nd: YAG laser).

The optical surgery apparatus and control method thereof according to the present invention prevent the light from being absorbed into the body fluid and thus prevent the normal tissue around the abnormal tissue from being damaged, thereby improving the precision of the surgery and the reliability of the surgery.

1 is a perspective view showing an optical surgery apparatus according to a first embodiment.
2 is a view briefly showing the inside of the main body of the optical surgery apparatus according to the first embodiment.
3 is a view showing an irradiation pattern of light generated from the light generating unit according to the first embodiment.
4 is a flowchart illustrating a control method of the optical surgery apparatus according to the first embodiment.
5 is a view illustrating a state in which bubbles are formed by the first light.
6 is a view schematically showing the inside of the main body of the optical surgery apparatus according to the second embodiment.
7 is a flowchart illustrating a control method of an optical surgery apparatus according to a second embodiment.
8 is a view briefly showing the inside of the main body of the optical surgery apparatus according to the third embodiment.
9 is a flowchart showing a control method of the optical surgery apparatus according to the third embodiment.

Hereinafter, an embodiment of an optical surgery apparatus and a control method thereof according to the present invention will be described with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, Is provided to fully inform the user.

First Embodiment

1 is a perspective view showing an optical surgery apparatus according to a first embodiment.

Referring to FIG. 1, the optical surgery apparatus 100 according to the first embodiment (hereinafter, referred to as an “optical surgery apparatus”) includes a main body 10. The main body 10 may be provided with an input device 11 and a display device 12. The input device 11 facilitates the overall operation of the optical surgery apparatus 100. The display apparatus 12 displays the overall driving state, the body image, the surgical scene, and the like of the optical surgery apparatus 100. Although FIG. 1 illustrates that the input device 11 and the display device 12 are separately installed, the input device 11 and the display device 12 may be modified as an integrated touch screen.

The cable 20 is connected to the main body 10. The cable 20 may include power lines, signal lines, optical fibers, and the like. An endoscope and lighting may be installed at the distal end of the cable 20, and the distal end of the optical fiber may be exposed. The optical fiber is used as a light transmitting member so that light generated from the main body 10 can be transferred into the body. The bubble protective film 40 is coupled to the tip of the cable 20, and the bubble protective film 40 will be described in detail later with reference to FIG. 5.

The handpiece 20 may be installed at a predetermined portion of the cable 20. The operation button 31 is installed in the handpiece 30. The operation button 31 allows to easily adjust the position of the endoscope, the illumination and the optical fiber inserted into the body.

The optical surgery apparatus 100 includes a catheter 40. The catheter 40 is provided in the form of a thin tube and inserted into the body. The catheter 40 allows the leading end of the cable 20 to be smoothly inserted into the body.

On the other hand, inside the main body 10 is provided with a light generating unit and a control unit for generating light used for surgery.

2 is a view briefly showing the inside of the main body of the optical surgery apparatus according to the first embodiment.

Referring to FIG. 2, the light generating unit 110 generates light. The light generator 110 may be configured as a resonator capable of oscillating a laser. The laser medium 111 is installed inside the resonator. The total reflection mirror 112 and the partial reflection mirror 113 are disposed at both sides of the laser medium 111. Therefore, the laser medium 111 oscillates light and is amplified while reciprocating inside the resonator by an excitation medium such as a flash lamp to generate a laser.

The light generator 110 may use a laser medium such as Nd: YAG, Erb, and Erg, and may generate pulsed light having a wavelength of 1064 nm, 1444 nm, 2940 nm, or the like. The pulsed light may be generated by a gain-switching method, a Q-switching method, a mode-locking method, or the like. Since the generation technology of such pulsed light is already well known in the art, detailed description thereof will be omitted.

Meanwhile, the controller 120 controls the pulse width of the light generated from the light generator 110 to separate the light generated from the light generator 110 into the first light and the second light, and the first light and the second light. The incident time of the light can be controlled.

3 is a view showing an irradiation pattern of light generated from the light generating unit according to the first embodiment.

Referring to FIG. 3, the pulse width of the light generated from the light generator 110 may be controlled by the controller 120. Light generated from the light generator 110 may be separated into the first light L1 and the second light L2 according to the pulse width.

The first light L1 may be absorbed by the body fluid before the second light L2 is irradiated to form a bubble B (see FIG. 5). The second light L2 may be used to dissect abnormal tissue. Therefore, the controller 120 may control the second light L2 to be generated with a larger output than the first light L1.

That is, the controller 120 may control the second light L2 to have a larger pulse width than the first light L1. Accordingly, the first light L1 may be irradiated for a first time T1, and the second light L2 may be irradiated for a second time T2 longer than the first time T1. The irradiation time of the first light L1 and the second light L2 is stored in a memory (not shown) separately provided in the main body 10, and may be preset or adjusted in real time by a user.

Hereinafter, a control method of the optical surgery apparatus according to the first embodiment will be described.

4 is a flowchart illustrating a control method of the optical surgery apparatus according to the first embodiment, and FIG. 5 is a view illustrating a state in which bubbles are formed by the first light.

4 and 5, the user inserts the catheter 40 into the patient's body and inserts the cable 20 into the catheter 40. Accordingly, endoscopes, lights, optical fibers, and the like can be inserted into the patient's body.

Subsequently, the internal body image is photographed by the endoscope inserted into the body, and the internal body image captured by the endoscope is displayed on the display device 12. The user refers to the image displayed on the display device 12 and adjusts the position of the optical fiber so that light can be irradiated toward abnormal tissue. At this time, the open end of the bubble protective film 40 may be in close contact with the surrounding tissue of the abnormal tissue.

Subsequently, the user manipulates the input device 11 of the main body 10 to adjust the light output. That is, as the input device 11 is operated, the controller 120 controls the light generator 110 to generate light from the light generator 110 (step S11).

The control unit 120 separates the light from the light generating unit 110 into the first light L1 and the second light L2, and adjusts the scanning time of the first light L1 and the second light L2. To control (step S12).

First, the first light L1 is transmitted to the optical fiber and irradiated toward abnormal tissue for the first time T1 (step S12). Body fluid may be located between the abnormal tissue and the optical fiber. Therefore, the first light L1 may be absorbed into the body fluid before reaching the abnormal tissue. As the first light L1 is absorbed into the body fluid, bubbles B are formed while the body fluid is evaporated (step S13).

Here, a discharge hole () may be formed in the bubble protection layer 40 so that the body fluid inside the bubble protection layer 40 may be smoothly discharged to the outside of the bubble protection layer 40 while the bubble B is formed. The bubble protective film 40 allows the time for which the bubble B is maintained to be extended. That is, the bubble protection film 40 delays the time that the body fluid outside the bubble protection film 40 flows into the bubble protection film 40 so that the time that the bubble B is maintained is extended.

As such, the bubble B is formed between the abnormal tissue and the optical fiber by the first light L1, and the bubble protective layer 40 extends the time for which the bubble B is maintained.

Subsequently, the second light L2 is transmitted to the optical fiber and irradiated toward the abnormal tissue for the second time T2 (step S14). Since the bubble B is already formed by the first light L1 between the abnormal tissue and the optical fiber, the second light L2 may pass through the bubble B and enter the abnormal tissue. The second light L2 incident on the abnormal tissue is absorbed by the abnormal tissue, and the abnormal tissue may be deteriorated and removed.

As described above, the optical surgery apparatus 100 according to the first embodiment generates the first light L1 and the second light L2 by adjusting the pulse width of the light generated by the single light generator 110. The light L1 and the second light L2 may be irradiated toward the surgical site through the same optical path.

Hereinafter, an optical surgery apparatus and a control method thereof according to another embodiment of the present invention will be described. In the following description, like components described in the first embodiment described above are denoted by the same reference numerals and detailed description will be omitted. Therefore, components omitted from the detailed description in the following description can be understood with reference to the description of the first embodiment described above.

Second Embodiment

6 is a view schematically showing the inside of the main body of the optical surgery apparatus according to the second embodiment.

Referring to FIG. 6, the light generator 110 according to the second embodiment includes a first light generator 210 and a second light generator 220. The first light generator 210 and the second light generator 220 may be configured as resonators as described above, respectively. That is, the first light generator 210 is composed of a first laser medium 211, a first total reflection mirror 212, a first partial reflection mirror 213, and the second light generator 220 is a second laser medium. 221, the second total reflection mirror 222, and the second partial reflection mirror 223. The first light generator 210 and the second light generator 220 generate the first light L1 and the second light L2, respectively.

Here, the first light generator 210 may generate an Erbium laser (Er: YAG laser), a carbon dioxide laser (CO2 laser), and the like, which are relatively light absorbers as the first light L1. The second light generator 220 may generate a Nd (YAG laser), which is easily penetrated into the body tissue as the second light L2.

The first shutter 240 may be installed at one side of the first light generator 210. The first shutter 240 interrupts the first light L1. A beam splitter 250 is installed in a path of the first light L1 passing through the first shutter 240. The beam splitter 250 transmits the first light L1 and reflects the second light L2.

The second shutter 260 may be installed at one side of the second light generator 220. The second shutter 260 interrupts the second light L2. The guide mirror 270 is installed in the path of the second light L2 passing through the second shutter 260. The guide mirror 270 guides the second light L2 to the beam splitter 250.

The optical fiber may be connected after the beam splitter 250.

On the other hand, the controller 230 controls the opening and closing operations of the first shutter 240 and the second shutter 260. That is, the controller 230 opens the first shutter 240 and closes the second shutter 260 so that the first light L1 can be irradiated for the first time T1, and the second light L2. The first shutter 240 may be closed and the second shutter 260 may be opened to be irradiated for the second time T2.

As described above, in the optical surgery apparatus 200 according to the second embodiment, the first light generator 210 and the second light generator 220 separately generate the first light L1 and the second light L2, respectively. It may be irradiated toward the surgical site through the same optical path after the beam splitter 250.

Hereinafter, a control method of the optical surgery apparatus according to the second embodiment will be described.

7 is a flowchart illustrating a control method of an optical surgery apparatus according to a second embodiment.

Referring to FIG. 7, as described in the first embodiment, when the optical fiber is located in front of the abnormal tissue, the controller 230 controls the first light generator 210 and the second light generator 220. The first light L1 and the second light L2 are sequentially generated (step S21).

First, the controller 230 opens the first shutter 240 for the first time T1 and closes the second shutter 260 (step S22). The first light L1 passes through the first shutter 240 and is incident to the beam splitter 250. The first light L1 passes through the beam splitter 250 (S23). The first light L1 transmitted through the beam splitter 250 is transmitted to the optical fiber and irradiated toward the abnormal tissue.

As described in the first embodiment, the first light L1 generates a bubble B between the optical fiber and the abnormal tissue (step S24), and the bubble protective film 40 maintains the bubble B. Extend your time.

Subsequently, the controller 230 closes the first shutter 240 and opens the second shutter 260 for the second time T2 (step S25). The second light L2 passes through the first shutter 240, is reflected by the guide mirror 270, and enters the beam splitter 250 (S26). The second light L2 is reflected by the beam splitter 250 (step S27). The second light L2 reflected by the beam splitter 250 is transmitted to the optical fiber and irradiated toward the abnormal tissue (step S28).

As described in the first embodiment, the second light L2 passes through the bubble B and is incident on the abnormal tissue, and the abnormal tissue may be deteriorated and removed.

Third Embodiment

8 is a view briefly showing the inside of the main body of the optical surgery apparatus according to the third embodiment.

Referring to FIG. 8, the light generator 110 according to the third embodiment includes a first light generator 310 and a second light generator 320. The first light generator 310 and the second light generator 320 may be configured as resonators as described above, respectively. That is, the first light generator 310 is composed of the first laser medium 311, the first total reflection mirror 312, the first partial reflection mirror 313, the second light generator 320 is the second laser medium 321, a second total reflection mirror 322, and a second partial reflection mirror 323. The first light generator 310 and the second light generator 310 generate the first light L1 and the second light L2, respectively.

As described in the second embodiment, the first light generator 210 generates the first light L1 having excellent absorption into water, and the second light generator 220 easily penetrates into abnormal tissue. The second light L2 may be generated.

The first shutter 340 may be installed at one side of the first light generator 310. The first shutter 340 interrupts the first light L1. The second shutter 350 may be installed at one side of the second light generator 310. The second shutter 350 interrupts the second light L2.

A first optical fiber for transmitting the first light L1 to the body may be connected to a path of the first light L1 passing through the first shutter 340, and a second light passing through the second shutter 350 may be connected. A second optical fiber for transmitting the second light L2 into the body may be connected to the path of the light L2. The first optical fiber and the second optical fiber are bent toward the center of the cable 20 at the distal end of the cable 20 so that the first light L1 and the second light L2 can be irradiated toward the abnormal tissue. Can be installed as.

Meanwhile, the controller 330 controls the operations of the first shutter 340 and the second shutter 350 as described in the second embodiment.

As described above, in the optical surgery apparatus 300 according to the third embodiment, the first light generator 310 and the second light generator 320 separately generate the first light L1 and the second light L2, respectively. The first light L1 and the second light L2 may be irradiated toward abnormal tissues by being transmitted to the body along separate optical paths.

Hereinafter, a control method of the optical surgery apparatus according to the third embodiment will be described.

9 is a flowchart illustrating a control method of an optical surgery apparatus according to a third embodiment.

Referring to FIG. 9, as described in the first embodiment, when the first optical fiber and the second optical fiber are located in front of the abnormal tissue, the controller 330 may control the first light generator 310 and the second light. The generator 320 is controlled to sequentially generate the first light L1 and the second light L2 (step S31).

First, the controller 330 opens the first shutter 340 for the first time T1 and closes the second shutter 350 (step S32). The first light L1 passes through the first shutter 340 and is irradiated toward the surgical site along the first light transmission member connected to the path of the first light L1 (S33).

As described in the first embodiment, the first light L1 generates a bubble B between the optical fiber and the abnormal tissue (step S34), and the bubble protective film 40 maintains the bubble B. Extend your time.

Subsequently, the controller 330 closes the first shutter 340 and opens the second shutter 350 for the second time T2 (step S35). The second light L2 passes through the first shutter 340 (step S36) and is irradiated toward the surgical site along the second light transmission member connected to the path of the second light L2 (step S37). .

As described in the first embodiment, the second light L2 passes through the bubble B and is incident on the abnormal tissue, and the abnormal tissue may be deteriorated and removed.

As described above, the optical surgery apparatus and control method thereof according to the present invention allows a bubble to be formed between the optical fiber inserted into the body and the abnormal tissue, and the light is incident to the abnormal tissue through the empty space inside the bubble. . Therefore, the optical surgery apparatus and the control method thereof according to the present invention can prevent the light is absorbed by the body fluid to conduct heat to the surrounding tissue of the abnormal tissue to damage.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

L1: first light L2: second light
T1: First time T2: Second time
B: bubble
10: main body 11: input device
12: display device 20: cable
30: handpiece 40: catheter
50: bubble protective film 51: exhaust port
100: light surgery device 110: light generating unit
120: control unit 210: first light generator
220: first light generator 240: first shutter
250: beam splitter 260: second shutter
270: guide mirror

Claims (14)

A light generator for generating the first light and the second light; And
And a controller configured to control the first light to be irradiated into the body so that a bubble is formed at an incident part of the first light, and the second light passes through an inside of the bubble to be incident on a tissue.
The light-
A first light generator for generating the first light; and
A second light generator for generating the second light;
A first shutter disposed in a path of the first light to control the first light; and
And a second shutter disposed in a path of the second light to control the second light.
The control unit
And controlling the opening and closing operation of the first shutter and the second shutter. The apparatus of claim 1, wherein the control unit
And controlling the second light to be scanned for a longer time than the first light. The apparatus of claim 1, wherein the control unit
And controlling the second light to have a larger pulse width than the first light. delete The method of claim 1,
A beam splitter disposed in a path of the first light passing through the first shutter to pass the first light and reflect the second light;
A guide mirror disposed in a path of the second light passing through the second shutter to guide the second light to the beam splitter; and
And an optical fiber connected to the paths of the first light and the second light passing through the beam splitter. The method of claim 1,
A first optical fiber connected to a path of the first light passing through the first shutter; and
And a second optical fiber spaced apart from the first optical fiber and connected to the path of the second light passing through the second shutter. The photosurgical apparatus of claim 1, further comprising a bubble protective layer for forming a film on the outer side of the bubble to delay the time for introducing the body fluid toward the bubble, thereby extending the time for the bubble to be maintained. A light generator for generating a first light of any one of an erbium laser (Er: YAG laser) and a carbon dioxide laser (CO2 laser), and a first light of an Nd: YAG laser;
And a controller configured to control the first light to be irradiated into the body so that bubbles are formed at an incident portion of the first light, and the second light passes through the bubble to be incident on tissue. Surgical device. In the control method of the optical surgery device to perform the surgery using light,
A light generating step of generating light from the light generating unit; and
The pulsed light is separated into a first light and a second light according to the pulse width of the light, and the first light is irradiated into the body so that a bubble is formed at an incident portion of the first light, and the second light is the bubble. And a control step of controlling to be incident to the tissue by passing through the interior thereof. The method of claim 9, wherein the controlling step
And the pulse width of the light is controlled such that the second light is scanned for a longer time than the first light. In the control method of the optical surgery device to perform the surgery using light,
A light generating step in which the first light and the second light are respectively generated from the first light generator and the second light generator; and
The first light is irradiated into the body so that a bubble is formed at an incident part of the first light, and the second light passes through the inside of the bubble and is incident on the tissue so as to be incident on the first light path and the second light path. And a control step of controlling opening and closing of the first and second shutters respectively disposed. The method of claim 11, wherein the controlling step
And controlling the opening and closing of the first shutter and the second shutter so that the first light is irradiated for the first time and the second light is irradiated for the second time. The method of claim 12, wherein the controlling step
And controlling the second time longer than the first time. 12. The method of claim 11,
The first light is any one of erbium laser (Er: YAG laser), carbon dioxide laser (CO2 laser),
The second light is a control method of the optical surgery device, characterized in that the laser (Nd: YAG laser).

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