KR20160022110A - 3d image system for ophtalmological operation using near infrared light - Google Patents

Abstract

According to an embodiment of the present invention, a near infrared 3D image system for an ophthalmological operation using near infrared light fundamentally eliminates a side effect (phototoxic retinopathy) due to use of visible light in an existing ophthalmological operation microscope in case of a cataract operation.

Description

TECHNICAL FIELD [0001] The present invention relates to a near-infrared (IR) stereoscopic image system for ophthalmic surgery using a near-infrared light source,

Embodiments of the present invention relate to a stereoscopic image system, and more particularly, to a near-infrared stereoscopic image system for ophthalmic surgery using a near-infrared light source.

Generally, an eye is an organ that senses intensity and wavelength of light. It detects light and darkness, identifies the direction of light, and recognizes the image of an object.

These eyes are located in a pair of left and right orbits on the front of the skull and are protected by the upper and lower eyelids. The eyeball is connected to the optic nerve on the back side. The eyeball wall has three layers and the outermost layer is the cornea The cornea is usually called black masturbation.

The above-mentioned eyes perform surgery for diseases such as cataract, dry eye syndrome, and glaucoma due to the change of modern environment, LASIK surgery for the correction of vision, LASEK surgery, excimer laser surgery and ICL surgery. Surgical microscopes are widely used.

The surgical microscope described above generally includes a light source for irradiating light by a power source, an optical cable for connecting the light of the light source to be irradiated to the affected part of the patient, an objective lens for enlarging the eye of the patient, It consists of an eyepiece that allows the eye to be seen with the naked eye.

In such a surgical microscope, the light irradiated from the light source shines brightly on the lesion portion of the patient along the optical cable, and the eye enlarged by the objective lens is observed and operated through the eyepiece lens.

A related prior art is the registered patent publication No. 10-0499243 entitled " SURGICAL MICROSCOPE USING IR IRON ", registered on June 24, 2005).

In one embodiment of the present invention, a stereoscopic image of the eyeball is displayed using a near-infrared light source, so that it is possible to fundamentally remove a side effect (phototoxic retinopathy) caused by the use of strong visible light in a conventional ophthalmic microscope during cataract surgery The present invention provides a near-infrared stereoscopic image system for ophthalmic surgery using a near-infrared light source.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

The near infrared ray stereoscopic image system for ophthalmic surgery using a near infrared ray light source according to an embodiment of the present invention can fundamentally remove a side effect (phototoxic retinopathy) due to use of strong visible light in a conventional ophthalmic microscope for cataract surgery .

The near-infrared stereoscopic image system for ophthalmologic surgery includes a light source unit capable of acquiring an image having a higher image contrast than an existing white light image, generating a near-infrared light having a small amount of light energy reaching the retina through the eyeball, A surgical microscope including a 3D optical system for acquiring an image of the eyeball by reflecting and refracting light; A rotating arm for stably supporting the surgical microscope, controlling stable movement in various angles and directions, and ensuring reliability through risk management; A 3D camera module for sensing the image acquired by the surgical microscope and generating left eye and right eye image data; A 3D image processing module for processing the left eye and right eye image data and outputting a stereoscopic image; And a 3D display device for displaying the stereoscopic image output by the 3D image processing module.

Wherein the 3D optical system includes a plurality of light sources for irradiating a plurality of near infrared rays having different wavelengths; An objective lens disposed to face the eyeball; A zoom lens for reflecting light reflected by the eyeball and passing through the objective lens; A video element for picking up light emitted from the zoom lens to generate an image of the eyeball differently for each wavelength, separating the generated image for each wavelength into a plurality of channels, and outputting the divided image; And an eyepiece formed to observe the image of the eyeball with the naked eye.

The video member may include a beam splitter for simultaneously displaying an image of the eyeball, which is formed through the objective lens, on the eyepiece lens and the display device.

The 3D camera module photographs an image of the eyeball separated by the beam splitter and outputs the images of the respective wavelengths to the 3D image processing module via the channels to be displayed through a plurality of the 3D display devices.

The details of other embodiments are included in the detailed description and the accompanying drawings.

According to an embodiment of the present invention, by displaying a stereoscopic image of an eye using a near-infrared light source, a side effect (phototoxic retinopathy) caused by the use of strong visible light in a conventional ophthalmic surgery microscope is fundamentally eliminated can do.

FIG. 1 is an overall schematic view illustrating a near infrared ray stereoscopic image system for ophthalmic surgery using a near-infrared light source according to an embodiment of the present invention.
2 is a diagram showing the detailed configuration of the light source generating unit of FIG.
3 is a diagram showing a detailed configuration of the 3D optical system of FIG.
Fig. 4 is a view showing a detailed configuration of a beam splitter included in the video element of Fig. 3;
FIG. 5 is a diagram showing the detailed configurations of the 3D camera module and the 3D image processing module of FIG. 1, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall schematic view illustrating a near infrared ray stereoscopic image system for ophthalmic surgery using a near-infrared light source according to an embodiment of the present invention.

1, the ocular surgery near infrared ray stereoscopic image system 100 includes a surgical microscope including a light source 110 and a 3D optical system 120, a rotating arm 130, a 3D camera module 140, A 3D image processing module 150, and a 3D display device 160.

The light source 110 of the surgical microscope can acquire an image having higher image contrast than the conventional white light image and generates near infrared light having a small amount of light energy reaching the retina through the eyeball.

The light source 110 may include a signal generator, an optical bandpass, a dispersion or time delay component, an ISO (optocoupler), a gain A gain medium, a coupler, and the like.

The 3D optical system 120 of the surgical microscope reflects and refracts near-infrared light generated by the light source 110 to acquire an image of the eyeball. 3, the 3D optical system 120 includes a plurality of light sources a, b, and c, an objective lens 310, a zoom lens 320, a video member 330, and an eyepiece 340 can do.

The plurality of light sources (a, b, c) irradiate a plurality of near infrared rays having different wavelengths. The plurality of near-infrared rays irradiated can be guided to the objective lens 310 and irradiated to the eye 301 that is close to the objective lens 310.

For reference, the near-infrared light means a light ray whose wavelength range is the shortest among infrared rays of 750 nm or more. Such near-infrared light has an advantage that it has almost no side effects such as glare or post-operative recovery delay as compared with visible light having the same light amount energy in the case of ophthalmic surgery because the near-infrared light exceeds the perceivable visible range of the human eye.

On the other hand, the plurality of light sources (a, b, c) can appropriately adjust the irradiation amount of the visible light and the near infrared light. Since near infrared rays have little reflection, they penetrate well and do not provide color information. Therefore, when near infrared rays are used, the inside of the eyeball, which is not seen as visible light, can be seen as a black and white image. In contrast, visible light provides color information although there are many side effects due to glare when more than a certain amount is irradiated to the eye.

Therefore, in one embodiment of the present invention, by appropriately adjusting the irradiation amount of the visible light and the near-infrared light according to the type of operation using the plurality of light sources (a, b, c), various side effects due to glare etc. can be solved, There are many advantages in ophthalmic surgery. For example, in case of cataract surgery or retinal surgery, the near infrared rays are irradiated. If color information is needed, the amount (intensity) of the visible ray can be controlled according to the required amount.

The objective lens 310 is disposed opposite to the eyeball 301. The objective lens 310 receives a plurality of near-infrared light beams irradiated from the plurality of light sources a, b, and c, and allows the eyeball 301 to be irradiated. At this time, since the plurality of light sources a, b, and c have different wavelengths, light of various wavelengths can be irradiated to the eyeball 301 through the objective lens 310.

Light that has been reflected by the eyeball 301 and has passed through the objective lens 310 is incident on the zoom lens 320. The zoom lens 320 may enlarge or reduce the incident light through a zoom in or zoom out function.

The video element 330 images the light emitted from the zoom lens 320 to generate an image of the eye 301 differently for each wavelength, separates the generated image for each wavelength into a plurality of channels, do.

To this end, the video element 330 may include a beam splitter 410, 420, 430, 440 as shown in FIG.

The beamsplitters 410, 420, 430, and 440 separate the image of the eyeball 301 formed through the objective lens 310 for each wavelength and output the images through a plurality of channels, And serves to display the image data of the eyeball 301 on the display device 160 at the same time.

In FIG. 4, L 1 and L 2 are lights that are incident through the optical path corresponding to the left eye of the surgical microscope observer and separated into respective channels, and R 1 and R 2 are incident through the optical path corresponding to the right eye of the surgical microscope observer, Separated light.

The beam splitters 410, 420, 430, and 440 may be detachably attached to the surgical microscope. At this time, it is preferable that the beam splitters 410, 420, 430, and 440 are designed in a Y-shape so as to be easily detached from the backside of the surgical microscope.

The eyepiece 340 is formed to visually observe an image of the eyeball 301. To this end, the eyepiece 140 may be disposed at a position facing the video member 130.

Referring again to FIG. 1, the rotatable arm 130 stably supports the surgical microscope and controls stable movement in various angles and directions. In addition, the rotatable arm 130 can ensure reliability through risk management.

For this, the rotating arm 130 is implemented as a multi-joint system having a stable kinematic / dynamic driving mechanism so that various operations and functions of the core module can be performed without error so as to cope with unexpected situations . In addition, the rotating arm 130 can realize a function of a control system that fundamentally prevents an abnormal operation state through precise position control.

The 3D camera module 140 senses the image obtained by the surgical microscope and generates left eye and right eye image data. The 3D camera module 140 can obtain an image of the eyeball (see 301 in FIG. 3) separated by the beam splitter (see "410", "420", "430" And images of the respective wavelengths are output to the 3D image processing module 150 through the channels to be displayed through a plurality of the 3D display devices 160.

5, the 3D camera module 140 may include a lens, an image sensor, an analog-to-digital converter (ADC), a color processing, an image enhancement ), An interface, and the like.

The 3D image processing module 150 processes the left eye and right eye image data and outputs a stereoscopic image. For this purpose, the 3D image processing module 150 may include a frame synchronizer, a 2D to 3D converter, a video processor, and a 3D formatter.

The 3D display device 160 displays the stereoscopic image output by the 3D image processing module 150.

Thus, in an embodiment of the present invention, a stereoscopic image relating to the eyeball is displayed using a near-infrared light source, and thus, a side effect (phototoxic retinopathy) caused by the use of strong visible light in a conventional ophthalmic surgery microscope Can be removed.

(W / cm ² ) is 0.23, the eye safety exposure time is 13 seconds, and the retinal injury threshold is 21 minutes in the conventional visible light, whereas the near infrared rays used in the present invention have the retina reaching energy (w / cm ² ) 0.0018, an eye safety exposure time of 27 minutes, and a retinal injury threshold of 45 hours.

Therefore, according to one embodiment of the present invention using the near-infrared rays, it is possible not only to eliminate side effects such as phototoxic retinopathy, but also to improve the attitude of the operation house, to restore visual acuity immediately after surgery, Can be minimized.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

110: Light source generating unit
120: 3D optical system
130: Rotating arm
140: 3D camera module
150: 3D image processing module
160: 3D display device
310: objective lens
320: zoom lens
330: absence of video
340: eyepiece
410, 420, 430, 440: beam splitter

Claims (5)

A near infrared ray stereoscopic imaging system for ophthalmic surgery using a near-infrared light source, characterized by being capable of fundamentally eliminating side effects (phototoxic retinopathy) caused by the use of strong visible light in a conventional ophthalmic surgical microscope during cataract surgery.
The method according to claim 1,
The near-infrared stereoscopic image system for ophthalmic surgery
A light source generating unit capable of acquiring an image having a higher image contrast than an existing white light image and generating a near infrared ray light having a small amount of light energy reaching the retina through the eyeball; and a light source unit for reflecting and refracting the near- A surgical microscope including a 3D optical system for acquiring a 3D optical system;
A rotating arm for stably supporting the surgical microscope, controlling stable movement in various angles and directions, and ensuring reliability through risk management;
A 3D camera module for sensing the image acquired by the surgical microscope and generating left eye and right eye image data;
A 3D image processing module for processing the left eye and right eye image data and outputting a stereoscopic image; And
A 3D display device for displaying the stereoscopic image output by the 3D image processing module
Wherein the near infrared ray stereoscopic image system for ophthalmic surgery employs a near infrared ray light source.
3. The method of claim 2,
The 3D optical system
A plurality of light sources for irradiating a plurality of near infrared rays having different wavelengths;
An objective lens disposed to face the eyeball;
A zoom lens for reflecting light reflected by the eyeball and passing through the objective lens;
A video element for picking up light emitted from the zoom lens to generate an image of the eyeball differently for each wavelength, separating the generated image for each wavelength into a plurality of channels, and outputting the divided image; And
An eyepiece formed to observe the image of the eyeball with the naked eye
Wherein the near infrared ray stereoscopic image system for ophthalmic surgery employs a near infrared ray light source.
The method of claim 3,
The video element
And a beam splitter for simultaneously displaying an image of the eyeball formed through the objective lens on the eyepiece lens and the display device,
Wherein the near infrared ray stereoscopic image system for ophthalmic surgery employs a near infrared ray light source.
5. The method of claim 4,
The 3D camera module
An image of the eyeball separated by the beam splitter and outputting the image for each wavelength to the 3D image processing module through each channel to be displayed through a plurality of the 3D display devices, Near infrared ray stereoscopic image system.

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