KR102132214B1 - Portable model eye apparatus - Google Patents

Abstract

Disclosed is a mobile model eye device which can simulate what patients will actually see through an intraocular lens while moving indoors and outdoors before surgery with an image most similar to that of the human eye. The mobile model eye device of the present invention comprises: a camera module; a tube lens and an objective lens fixed by a main frame in an order close to the front of the camera module so that the focus of the image captured by the camera module is adjusted; a plurality of guide members having one end fixed to the main frame and disposed in parallel in front of the objective lens; an intraocular lens module installed in front of the objective lens so as to be able to move forward and backward by the guidance of the plurality of guide members, and having an intraocular lens installed thereon; and an artificial corneal module installed in front of the intraocular lens module so as to be able to move forward and backward by the guidance of the plurality of guide members and provided with an artificial cornea inside.

Description

Portable model eye apparatus

The present invention relates to a mobile model eye device that can simulate what the patients actually see while moving the intraocular lens before and after surgery with the most similar image to the human eye.

In general, a cloudy lens is removed and an artificial lens is inserted during cataract surgery. Recently, not only a general single-focal lens, but also a multi-focal lens is used. It is said that by inserting a multifocal artificial lens, both long and short distance objects can be clearly seen.

However, there is no way to objectively evaluate how a patient with a multifocal lens is actually seeing the world. There is a method of inserting a multifocal artificial lens into a model eye and testing it using a standardized target in an optical laboratory, but it is difficult to deliver properly simulated postoperative information to the patient because it differs from the actual environment. There was.

In addition, the prior art not only simulates only in an optical laboratory, but at this time, there is a problem that a similar focal length is not provided to a real person.

U.S. Patent No. 9,211,061

The object of the present invention is to solve this problem, it can be carried not only indoors but also outdoors, and after inserting various intraocular lenses, the real world is photographed and shown to patients, and the most similar to the human eye. It is to provide a mobile model eye device that can be simulated.

As a specific means for achieving the above object, a mobile model eye device according to an aspect of the present invention includes: a camera module; A tube lens and an objective lens fixed by a main frame in an order close to the front of the camera module so that a focus of an image photographed on the camera module is adjusted; A plurality of guide members having one end fixed to the main frame and arranged in parallel in front of the objective lens; An artificial lens module installed in front of the objective lens so as to be able to move forward and backward by the guide of the plurality of guide members, and an artificial lens is installed therein; It may be installed in front of the artificial lens module to be able to move forward and backward by the guide of the plurality of guide members, and an artificial cornea module having an artificial cornea therein.

At this time, through holes through which the plurality of guide members penetrate are formed in the main body of the artificial lens module and the corneal module, the artificial lens module and the artificial corneal module may move back and forth in the same direction.

At this time, the main body of the artificial lens module and the artificial cornea module may be formed in a cuboid shape.

At this time, the focal length of the artificial cornea module may be 20mm ~ 25mm.

At this time, the main frame, the objective lens, the tube lens and a frame portion fixed to the outer surface of the camera module, respectively; And the objective lens, the tube lens and the camera module are fixed to the frame portion of the objective lens so that all of the focal points are disposed on the same axis, and after passing through the frame portion of the tube lens, the other end is a frame of the carrera module. It may include; a plurality of fixing rods fixed to the portion.

At this time, the artificial lens module, the through-hole body is formed; An artificial insemination body mounted to be fixed inside the through hole of the main body; A window member made of a transparent material fixed to both ends of the through hole of the main body so that the inside of the through hole of the main body is sealed; Fixing unit for fixing the position of the artificial lens; And an aqueous solution body filled in the through hole.

At this time, the cross section of the through hole may be formed in a circular shape.

At this time, the central axis of the artificial insemination may be disposed on the central axis of the through hole.

At this time, the fixing part may include an adapter for fixing the upper portion and an adapter for fixing the lower portion installed on the upper and lower parts of the artificial lens to fix the artificial lens to a certain height inside the through hole.

At this time, the assembly jaw having a reduced diameter is formed at the lower end of the through-hole of the main body, and the adapter for fixing the lower portion, the artificial lens, and the adapter for fixing the upper portion may be sequentially stacked on the assembly jaw.

At this time, the artificial lens may be fixed by fixing the upper fixing adapter by a fixing means.

At this time, the aqueous solution may be water or physiological saline.

At this time, the artificial lens may be a multifocal artificial lens.

At this time, the artificial corneal module and the artificial lens module may be arranged to contact each other.

According to the present invention as described above has the following effects.

(1) The present invention provides an effect that can be shown before surgery by moving and moving visual images of various environments that will actually be seen by the patient after surgery.

(2) The present invention makes it possible to improve portability by applying to various visual test equipments by modularizing the artificial lens.

(3) The present invention can simulate an image most similar to the human eye to see what patients actually see while moving indoors and outdoors.

1 is a configuration diagram of a mobile model eye device according to an embodiment of the present invention.
2 to 6 are cross-sectional views showing a method of manufacturing an artificial lens module, which is a part of the movable model eye device, according to an embodiment of the present invention in the order of manufacture.
7 is a schematic diagram of an external light passing through the mobile model eye device according to an embodiment of the present invention to form an image on the camera.
8 to 10 are various images actually photographed using a mobile model eye device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. In the drawings, parts not related to the description are omitted in order to clearly describe the present invention, and the same reference numerals are attached to the same or similar elements throughout the specification.

In this specification, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described in the specification, but one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance. In addition, when a part such as a layer, film, region, plate, etc. is said to be "above" another part, this includes not only the case "directly above" the other part but also another part in the middle. Conversely, when a portion of a layer, film, region, plate, or the like is said to be “under” another portion, this includes not only the case “underneath” another portion, but also another portion in the middle.

Hereinafter, a mobile model eye device according to an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to Figure 1, the movable model eye device 1 according to an embodiment of the present invention, the camera module 30, the tube lens 60, the objective lens 50, a plurality of guide members 40, artificial It includes a lens module 20, and an artificial corneal module 10.

Referring to FIG. 1, the camera module 30 is installed at the rear end of the mobile model eye device 1. The camera module 30 may be connected to a display device (not shown) to check an image captured by the camera module.

At this time, a general CCD camera may be applied as the camera module 30. However, the type of camera that can be used in the camera module is not limited thereto.

On the other hand, referring to Figure 1, the tube lens 60 and the objective lens 50, the main frame 101 in the order close to the front of the camera module 30 so that the focus of the image taken on the camera module 30 is adjusted Is fixed by. That is, the tube lens 60 is installed in front of the camera module 30, and the objective lens 50 is installed in front of the tube lens 60. Of course, the combination of the objective lens 50 and the tube lens 60 performs the same role as the microscope.

At this time, in the case of a normal camera module, the image is not formed at the forefront of the camera module, but because the image is formed at a spaced apart position inside the camera module, if the focus is achieved by the artificial cornea 10 and the artificial lens 20, It is difficult to match them together. For this reason, by arranging the objective lens 50 and the tube lens 60 acting as a microscope in front of the camera, it is possible to show the captured image closest to the image the patient will see after surgery.

At this time, referring to Figure 1, the main frame 101 includes a frame portion (31, 51, 61) and a plurality of fixing rods (41).

At this time, the frame parts 31, 51, and 61 are fixed to the outer surfaces of the objective lens 50, the tube lens 60, and the camera module 30, respectively. That is, it is fixed to the outer surface of each component to be mediated to act as a rigid body. Therefore, by adjusting or fixing each of the frame parts 31, 51, and 61, the position and focal length of the objective lens 50, the tube lens 60, and the camera module 30 are all aligned and then fixed. It becomes possible. Here, the frame parts (31, 51, 61) are formed and fixed to form a substantially flat cuboid.

At this time, referring to Figure 1, the plurality of fixing rods 41, the objective lens 50, the tube lens 60, and the camera lens 30 are all of the objective lens 50 so that the focal points are all disposed on the same axis ) Is fixed to the frame portion 51, and after passing through the frame portion 61 of the tube lens 60, the other end is fixed to the frame portion 31 of the camera module 30.

At this time, the plurality of fixing rods 41 may be installed such that the four fixing rods 41 penetrate and fix the four corner portions of the frame portions 31, 51, and 61.

Referring to FIG. 1, the plurality of guide members 40 are arranged in parallel with one end fixed to the main frame 101 in front of the objective lens 50.

At this time, one end of the guide member 40 may be fixed to the frame portion 51 of the objective lens 50.

At this time, the plurality of guide members 40 may be formed in a circular rod shape or a polygonal rod shape or a pipe shape. Here, it is preferable that the plurality of guide members 40 are installed in parallel with each other so that the guiding components have straightness.

According to an embodiment of the present invention, the artificial corneal module 10, the artificial lens module 20, the objective lens 50, the tube lens 60, and the camera module 30 may be arranged in a line.

Referring to FIG. 1, the artificial corneal module 10 is installed to be able to move forward and backward by the guidance of a plurality of guide members 40 in front of the artificial lens module 20, and an artificial cornea may be provided therein.

At this time, the artificial cornea module 10 is installed to be in close contact with the artificial lens module 20 and the distance is maintained almost the same, for the focus adjustment, the distance between the artificial lens module 20 and the camera module 30 Control.

The mobile model eye device according to an embodiment of the present invention may form the artificial corneal module 10 as similarly as possible to the refractive power of the human cornea. In this case, since the focal length of the artificial cornea module is short, it is difficult to install the camera module adjacent to the artificial cornea module 10 and the lens of the lens of the lens. In order to solve this problem, according to an embodiment of the present invention, using the objective lens and the tube lens between the artificial corneal module 10 and the artificial lens module 20 and the camera module 30 extends the focus to the rear By doing so, a model eye device may be manufactured using a corneal module having a refractive power similar to that of a human cornea.

At this time, in one embodiment of the present invention, the focal length of the artificial cornea module may be about 20-25mm.

Referring to FIG. 1, the artificial lens module 20 is installed to be able to move back and forth by the guide of the plurality of guide members 40 in front of the objective lens 50, and the artificial lens 26 may be installed therein. .

At this time, referring to FIGS. 2 to 6, the artificial lens module 20 includes a body 21, an artificial lens 26, window members 22 and 27, a fixed portion, and an aqueous solution body 23. Can.

Referring to FIGS. 2 to 6, the main body 21 is formed with a through hole 21a in the vertical direction.

At this time, the cross section of the through hole 21a may be formed in a circular shape.

At this time, the main body 21 is formed in a substantially rectangular parallelepiped shape, and a guide hole may be provided at a corner to allow a plurality of guide members 40 to pass therethrough. Since it is guided in four places, it will secure more and more straightness. However, the shape of the body is not limited to a rectangular parallelepiped, and may be cylindrical or polyhedral depending on the shape.

At this time, the lower end of the through hole 21a of the main body 21 is formed with a reduced assembly jaw 21b, an adapter 24 for fixing the lower portion of the assembly jaw 21b, an artificial lens 26, The upper fixing adapter 25 is stacked in order.

Referring to Figure 6, the artificial insemination body 26 is mounted in the horizontal direction to be fixed inside the through hole 21a of the main body 21. Of course, the artificial lens 26 is stably fixed by the upper and lower fixing adapters 24 and 25 and maintains the state.

Referring to FIG. 6, the window members 22 and 27 are made of a transparent material fixed to the upper and lower ends so that the inside of the through hole 21a of the main body 21 is sealed.

At this time, the window members 22 and 27 may be manufactured using glass or synthetic resin panels. Also, the window members 22 and 27 may be fixed to the main body 21 by an adhesive.

6, the position of the artificial insemination lens 26 is fixed.

At this time, the fixing portion is made of an adapter 25 for fixing the upper portion and an adapter 24 for fixing the lower portion, and the artificial lens 26 is positioned between them to maintain a fixed state. That is, the artificial lens 26 is positioned between the upper and lower fixing adapters 24 and 25, but the artificial lens 26 itself is not fixed to the main body 21, but the upper and lower fixing adapters 24 and 25 are fixed. It is fixed indirectly.

At this time, the upper and lower fixing adapters 24 and 25 may be formed in a flat ring shape such as a washer, and the upper fixing adapter 25 is tightened by tightening a head bolt on the side, or otherwise, the upper fixing adapter ( 25) It may be possible to apply a method of tightening and fixing an annular fixing bolt that is screwed to the upper portion. In addition to this fixing method, by fixing the upper fixing adapter 25 in various ways, it is possible to stably fix the artificial lens 26 in a certain position inside the main body 21.

The aqueous solution 23 may be water or physiological saline filled in the through hole 21a, referring to FIG. 6.

The manufacturing process of the artificial lens module 20 is as follows with reference to FIGS. 2 to 6.

First, referring to FIG. 2, an artificial lens body 21 made of a rectangular parallelepiped and having a through hole 21a is prepared.

Referring to FIG. 3, the lower portion of the artificial lens body 21 is adhered so that the window member 22 is sealed using an adhesive, and a certain amount of physiological saline 23 is injected into the through hole 21a.

Referring to FIG. 4, the lower fixing adapter 22 is positioned until it is lowered until it engages the locking jaw 21b of the through hole 21a.

Referring to FIG. 5, the artificial lens 26 is placed horizontally on the lower fixing adapter 22, and in this state, the upper fixing adapter 25 is lowered on the upper portion of the artificial lens 26 to hold the position. At the same time, the upper fixing adapter 25 is inserted into the side of the main body 21 and fixed with a headless bolt which is a fixing means.

Lastly, referring to FIG. 6, a window member 27 is glued to the upper surface of the main body 21 with an adhesive so as not to bubble as much as possible through the injection of physiological saline into the through hole 21a. Of course, by doing so, the inside of the through hole 21a is completely sealed.

The actual production of the movable model eye device 1 according to the present invention configured as described above will be described, including the model name of each part.

As an artificial cornea, a chromatic doublet lens (AC127-150-A, Thorlab) having a focal length of 150 mm and a diameter of 0.5 inch was used. The intraocular lens module (IOL mount) was glued to a SM05-Threaded 30 mm Cage Plate capable of mounting 0.5 inch optics, glued with a 1 inch diameter window (thickness= 1 mm, N-BK7 (WG11010)). . The 0.5 inch optic adapter was inserted, the artificial lens was inserted, and the same adapter (LMRA5, clear aperture 3.81 mm) was inserted and fixed.

Therefore, the diameter of Iris is 3.81 mm. The dissection microscope was used to confirm the center of the artificial lens, especially in the case of a rotating intraocular lens (diffractive IOL). The saline was filled and the same 1 inch window was glued to the opposite side. This model eye device satisfies ISO 11979-2, 1999.

The artificial cornea and the artificial lens were closely attached. The distance from the back surface of the double lens of the cornea to the center of the optic of the lens of the lens is 4.7 mm, which is always constant. A 4X objective lens, tube lens, and color CCD camera (Basler Aca2500 60uc, sensor size=1 inch) were connected behind the lens. The artificial cornea, lens, and camera consisted of a 30 mm cage system and a 60 mm cage system, so there was no need for a separate alignment process.

First, the distance between the IOL mount and the objective lens was adjusted using a target more than 6 m away, so that it was most clearly visible. Then, the lens tube was used to shield the IOL mount from the objective lens from light. The CMOS camera was connected to a notebook computer to check the image. I went out outdoors with a model eye and a computer and photographed objects at a long distance, a medium distance, and a short distance. At this time, the settings of the CCD camera were set to exposure time auto, white balance auto, and gain auto. Filming was done once a day at night. At night, the car was filmed on the road to see if there was a starburst. We confirmed that the menu was visible in the dark restaurant.

Then, the image was taken while approaching the near vision table from a medium distance (30 cm) in a room using a fluorescent lamp. The short-range visual acuity chart used Precision's ETDRS visual acuity chart.

7 is a schematic view of an external light passing through the mobile model eye device according to an embodiment of the present invention, where an image is formed on the camera. The result actually photographed using the model eye device 1 according to an embodiment of the present invention is illustrated in FIGS. 8 to 10.

8 to 10 are images taken by a camera when viewed using a real multifocal artificial lens, and thus can be used in a real environment such as outdoors by using a mobile model eye device according to an embodiment of the present invention. It is easy and accurate to see how a person who has undergone a focal artificial lens will see the real environment.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention may add elements within the scope of the same spirit. However, other embodiments may be easily proposed by changing, deleting, adding, or the like, but this will also be considered to be within the scope of the present invention.

1: Mobile model eye device 10: Artificial corneal module
20: artificial lens module 21: the body
22, 27: no window 23: physiological saline
24: lower fixing adapter 25: upper fixing adapter
26: artificial lens 30: the camera module
40: guide member 41: fixing rod
50: objective lens 31, 51, 61: frame portion
60: tube lens 101: main frame

Claims (14)

Camera module;
A tube lens and an objective lens fixed by a main frame in an order close to the front of the camera module so that a focus of an image photographed on the camera module is adjusted;
A plurality of guide members having one end fixed to the main frame and arranged in parallel in front of the objective lens;
An artificial lens module installed in front of the objective lens so as to be able to move back and forth by the guide of the plurality of guide members and an artificial lens in the interior;
An artificial corneal module installed in the front of the artificial lens module so as to be able to move back and forth by the guide of the plurality of guide members and having an artificial cornea inside;
Mobile model child device comprising a. According to claim 1,
A body model of the artificial lens module and the artificial cornea module is formed with a through hole through which the plurality of guide members penetrate, and the artificial lens module and the artificial cornea module move back and forth in the same direction. According to claim 1,
The body of the artificial lens module and the artificial cornea module is a mobile model eye device made of a rectangular parallelepiped shape. According to claim 1,
The focal length of the artificial cornea module is 20mm ~ 25mm, mobile model eye device. According to claim 1,
The main frame,
A frame part fixed to the outer surfaces of the objective lens, the tube lens, and the camera module; And
One end is fixed to the frame portion of the objective lens so that the objective lens, the tube lens, and the focus of the camera module are all arranged on the same axis, and after passing through the frame portion of the tube lens, the other end is the frame portion of the carrera module. A plurality of fixing rods fixed to;
Mobile model child device comprising a. According to claim 1,
The artificial lens module,
A body having a through hole;
An artificial insemination body mounted to be fixed inside the through hole of the main body;
A window member made of a transparent material fixed to both ends of the through hole of the main body so that the inside of the through hole of the main body is sealed;
Fixing unit for fixing the position of the artificial lens; And
An aqueous solution body filled in the through hole;
Mobile model eye device comprising a. The method of claim 6,
The cross-section of the through-hole is a movable model eye device made of a circle. The method of claim 6,
A movable model eye device in which the central axis of the artificial lens is disposed on the central axis of the through hole. The method of claim 6,
The fixing unit is a movable model eye device including an upper fixing adapter and a lower fixing adapter installed on the upper and lower parts of the artificial lens to fix the artificial lens to a certain height inside the through hole. The method of claim 9,
A movable model eye device having a diameter-reduced assembly jaw formed at a lower end of the through-hole of the main body, and the lower fixing adapter, the artificial lens, and the upper fixing adapter sequentially stacked on the assembly jaw. The method of claim 9,
A movable model eye device in which the artificial lens is fixed by fixing the upper fixing adapter by a fixing means. The method of claim 6,
The aqueous solution is a mobile model eye device that is water or physiological saline. The method of claim 1 or 5,
The artificial lens is a multifocal artificial lens, a mobile model eye device. The method of claim 1 or 6,
The artificial cornea module and the artificial lens module are mobile model eye devices that are disposed to be in contact with each other.

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