KR20230139956A - Manufacturing apparatus and manufacturing method for an adjustable intraocular lens - Google Patents

Abstract

The present invention relates to a manufacturing apparatus and a manufacturing method for adjustable intraocular lens. The apparatus comprises a chamber storing a fluid first material, a curing unit irradiating ultraviolet rays into the chamber to cure the first material, and forming a lens body having a plurality of injection ports, and an insert unit inserting a second material different from the first material into the injection hole of the lens body.

Description

Manufacturing apparatus and manufacturing method for an adjustable intraocular lens}

The present invention relates to an apparatus and method for manufacturing an accommodative intraocular lens.

Generally, an intraocular lens (IOL) refers to an artificial lens implanted in the eye to replace the clouded lens of a cataract patient.

This intraocular lens (artificial lens) implantation surgery is a method of removing the cataract from a cataract patient and then inserting an intraocular lens (artificial lens) made of artificial material into the eye to take the role of glasses or contact lenses after surgery. It is currently being implemented widely around the world.

At this time, a cataract is a disease that reduces vision because the lens of the eye becomes cloudy, preventing external light from focusing clearly on the retina. To treat this, the clouded lens inside the lens bag is removed and inserted into the human body, causing inflammation. It is common to perform surgery to insert an intraocular lens (artificial lens) made of various materials that do not cause complications such as these.

In order to implant an intraocular lens so that patients can clearly see objects near or far away, research on the shape and material of the intraocular lens continues. For example, there is a method of injecting a liquid such as water into the intraocular lens to perform a multi-focus function, or changing the shape of the intraocular lens to adjust focus.

U.S. Patent Publication No. 2009-0088840 (title of the invention: ZONAL DIFFRACTIVE MULTIFOCAL INTRAOCULAR LENSES) discloses a technology for forming a refractive area on the surface of a lens to provide a multifocal intraocular lens.

US Patent Publication No. 2009-0088840 (2008.09.30)

Embodiments of the present invention are intended to provide a manufacturing apparatus and manufacturing method that can manufacture an adjustable intraocular lens with improved visibility by aligning light incident on the intraocular lens.

One aspect of the present invention includes a chamber in which a fluid first material is stored, a curing unit that irradiates ultraviolet rays into the chamber to cure the first material to form a lens body having a plurality of injection holes, and the lens body. Provided is an apparatus for manufacturing an adjustable intraocular lens including an insert unit for inserting a second material different from the first material into the injection port.

Additionally, the curing unit may form a plurality of injection holes extending inward from the surface of the lens body.

Additionally, the curing unit may form a plurality of injection holes disposed on at least one of the upper and lower surfaces of the lens body.

Additionally, the insert unit may fix the second material having a different refractive index from the first material to the injection hole.

In addition, it may further include a coating unit that coats the lens body into which the second material is injected.

Another aspect of the present invention includes storing a fluid first material in a chamber, curing the first material by irradiating ultraviolet rays along a preset path to the chamber to form a lens body having an injection port, and inserting a second material into the injection port.

Additionally, in the step of forming the lens body, the lens body may be sequentially hardened in the height direction using a preset model to form an injection port extending inward from the surface of the lens body.

Additionally, in forming the lens body, a plurality of injection holes may be formed on at least one of the upper and lower surfaces of the lens body.

The manufacturing apparatus and method of an adjustable intraocular lens according to an embodiment of the present invention can improve the performance of the adjustable intraocular lens. The manufacturing apparatus and method of the adjustable intraocular lens form an injection port to extend inward from the surface of the lens body so that the optical member can be disposed on the surface of the lens body, so that the optical member disposed on the surface of the manufactured lens body is By selectively passing incident external light with high efficiency, the performance of the adjustable intraocular lens can be improved. Of course, the scope of the present invention is not limited by this effect.

1 is a block diagram showing an apparatus for manufacturing an adjustable intraocular lens according to an embodiment of the present invention.
Figure 2 is a diagram showing a part of the apparatus for manufacturing the accommodative intraocular lens of Figure 1;
Figure 3 is a diagram showing a part of the apparatus for manufacturing the accommodative intraocular lens of Figure 1;
FIG. 4 is a plan view showing an accommodative intraocular lens manufactured by the accommodative intraocular lens manufacturing apparatus of FIG. 1 ;
Figure 5 is a diagram showing an apparatus for manufacturing an adjustable intraocular lens according to another embodiment of the present invention.
Figure 6 is a flowchart showing a method of manufacturing an accommodative intraocular lens according to another embodiment of the present invention.

The present invention will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Meanwhile, the terms used in this specification are for describing embodiments and are not intended to limit the present invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used herein, “comprises” and/or “comprising” refers to the presence of one or more other components, steps, operations and/or elements. or does not rule out addition. Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. Terms are used only to distinguish one component from another.

Figure 1 is a block diagram showing a manufacturing apparatus for an accommodative intraocular lens according to an embodiment of the present invention, Figure 2 is a diagram showing a part of the manufacturing apparatus for an accommodating intraocular lens in Figure 1, and Figure 3 is a diagram showing a part of the manufacturing apparatus for an accommodating intraocular lens in Figure 1. It is a diagram showing a part of the manufacturing apparatus of the adjustable intraocular lens of 1.

1 to 3, the apparatus 1 for manufacturing an accommodative intraocular lens may include a chamber 10, a curing unit 20, and an insert unit 30. The apparatus 1 for manufacturing an adjustable intraocular lens is an adjustable intraocular lens ( 100) can be manufactured.

The adjustable intraocular lens 100 may have a lens body 110 formed in the chamber 10 and the curing unit 20. Thereafter, the insert unit 30 may insert the optical member 120 into the lens body 110.

The chamber 10 may store the first material M, which is a fluid. The first material M, which is a fluid, can be stored in the internal space of the chamber 10.

Since the first material (M) has the property of being able to be cured by ultraviolet rays, it can be cured by ultraviolet rays of the curing unit 20.

The first material (M) is a material that forms the lens body 110 and may be biocompatible.

For example, the first material M may be made of a relatively hard material, a relatively soft flexible semi-rigid material, or a combination of these hard and soft materials. For example, the first material (M) may be polymethyl methacrylate (PMMA), polysulfone (PSF), or other relatively hard, biologically inert optical material. Additionally, the lens body 150 may be made of silicone resin, hydrogel, thermolabile materials, or other flexible, semi-rigid, biologically inert optical materials.

A support 11 may be placed in the interior space of the chamber 10. A lens body 110 formed by hardening may be supported on the support 11.

The curing unit 20 may irradiate ultraviolet rays into the chamber 10. The curing unit 20 may cure the first material M to form a lens body 110 having a plurality of injection holes 111 .

The curing unit 20 may irradiate ultraviolet rays in a preset wavelength band. The wavelength of the irradiated ultraviolet rays may be selected depending on the first material (M).

The curing unit 20 can sequentially cure the lens body 110 in the height direction using a preset model. The curing unit 20 may form an injection port 111 extending inward from the surface of the lens body 110.

The curing unit 20 may receive data about the shape of the lens body 110 and irradiate ultraviolet rays according to the shape of the lens body 110. The curing unit 20 may print the lens body 110 by considering the position of the injection port 111 disposed on the lens body 110.

The insert unit 30 may insert a second material different from the first material M into the injection hole 111 of the lens body 110. The insert unit 30 may insert the optical member 120 into the injection hole 111 of the lens body 110.

The optical member 120 may be made of a second material different from the first material M, and may have a shape corresponding to the shape of the injection hole 111. The second material of the optical member 120 may have a different refractive index from the first material (M).

In one embodiment, the optical member 120 may be formed by curing a second material in another device. The insert unit 30 may manufacture the adjustable intraocular lens 100 by inserting the hardened optical member 120 into the injection port 111.

In one embodiment, the optical member 120 may be formed by hardening at the injection port 111 of the lens body 110. The insert unit 30 may form the optical member 120 by inserting a fluid second material into the injection hole 111 and hardening the inserted second material.

FIG. 4 is a plan view showing an accommodative intraocular lens manufactured by the accommodative intraocular lens manufacturing apparatus of FIG. 1 ;

Referring to FIGS. 2 to 4 , the adjustable intraocular lens manufacturing apparatus 1 can manufacture the adjustable intraocular lens 100 in which the optical member 120 is inserted into the lens body 110.

The adjustable intraocular lens 100 may include a lens body 110 and an optical member 120. The accommodative intraocular lens 100 can be made by removing part or all of the natural lens of a person's eye and implanting it in the removed portion.

The lens body 110 may have a plurality of injection holes 111 disposed on at least one of the upper surface (S1) and the lower surface (S2) of the lens body 110.

In one embodiment, as shown in FIG. 3, the lens body 110 may have an injection hole 111 into which the optical member 120 is inserted into the upper surface S1 and the lower surface S2, respectively. The lens body 110 is printed from the lower surface (S2) to the upper surface (S1), and ultraviolet rays irradiated from the curing unit 20 cure the first material (M) considering the shape and arrangement of the upper and lower injection holes. can do.

In another embodiment, the lens body 110 may have an injection hole 111 for inserting the optical member 120 into the upper surface S1 or the lower surface S2.

In the drawing, the optical member 120 forms two rows on the central axis of the lens body 110, but the present invention is not limited to this and may form a single row or three or more rows.

The drawing shows an embodiment in which the optical member 120 and the injection port 111 have a tapered shape, but the present invention is not limited thereto and may have various shapes such as a cylinder or a polygonal pillar.

The optical member 120 may selectively pass some of the incident external light. The optical member 120 may reflect part of the incident light and pass part of it depending on the refractive index. Additionally, if the incident angle of external light is greater than or equal to the critical angle of the optical member 120, the optical member 120 may reflect all of the incident light. Additionally, if the incident angle of external light falls within a predetermined range, all of the incident light can pass through.

The optical member 120 allows only a portion of the external light incident on the adjustable intraocular lens 100 to pass through, thereby creating a clear image on the retina. The optical member 120 creates an effect similar to the pinhole effect, but compared to the pinhole effect, the total amount of light passing through and the total area through which light can pass are greatly increased, resulting in a brighter and clearer effect on the retina. Allow images to be created.

The apparatus 1 for manufacturing an adjustable intraocular lens according to an embodiment of the present invention can improve the performance of the adjustable intraocular lens 100. The apparatus 1 for manufacturing an adjustable intraocular lens may form the injection port 111 to extend inward from the surface of the lens body 110 so that the optical member 120 can be disposed on the surface of the lens body 110. there is. The optical member 120 disposed on the surface of the lens body 110 selectively passes incident external light with high efficiency, thereby improving the performance of the adjustable intraocular lens 100.

Figure 5 is a diagram showing an apparatus for manufacturing an adjustable intraocular lens according to another embodiment of the present invention.

Referring to FIG. 5, the apparatus for manufacturing an adjustable intraocular lens may further include a coating unit 40. The coating unit 40 may coat the lens body 210 into which the second material is injected.

The lens body 210 has an optical member 220 inserted into the injection port. The coating unit 40 may form a coating layer 230 to cover the lens body 210 and the optical member 220. The coating unit 40 forms a coating layer 230 on the outside of the adjustable intraocular lens 200, thereby increasing the durability and safety of the adjustable intraocular lens 200.

The coating unit 40 can be formed by spraying or applying a coating material and then curing it. Additionally, the coating layer 230 can be formed by placing the lens body 210 in a space where the coating material is stored.

Figure 6 is a flowchart showing a method of manufacturing an accommodative intraocular lens according to another embodiment of the present invention.

Referring to FIG. 6, the method of manufacturing an adjustable intraocular lens includes storing a fluid first material in a chamber (S10), curing the first material by irradiating ultraviolet rays along a preset path to the chamber, and forming a lens having an injection port. It may include forming a body (S20) and inserting a second material into the injection port (S30).

In the step S10 of storing the first material, which is a fluid, in the chamber, referring to FIG. 2, the first material M may be stored in the internal space of the chamber 10.

The first material (M) is a material that forms the lens body 110, and can be hardened by ultraviolet rays. The first material M may be stored in the chamber 10 in a fluid state.

In the step (S20) of forming a lens body having an injection port by curing the first material by irradiating ultraviolet rays along a preset path to the chamber, referring to FIG. 2, the ultraviolet rays irradiated from the curing unit 20 are used to cure the first material. (M) can be hardened.

In the step (S20), the lens body 110 is sequentially hardened in the height direction using a preset model to form an injection hole 111 extending inward from the surface of the lens body 110.

The injection hole 111 may be disposed on at least one of the upper surface (S1) or the lower surface (S2) of the lens body 110. The injection hole 111 may extend inward from the surface of the lens body 110.

The curing unit 20 may follow a preset path or adjust the position of the ultraviolet rays according to the shape of the lens body 110. As a result, the lens body 110 can be hardened into a layered structure on the support 11.

Additionally, the curing unit 20 adjusts the position of ultraviolet rays in consideration of the position of the injection port 111, so the lens body 110 may have the injection port 111 disposed on the surface.

In the step of inserting the second material into the injection hole (S30), referring to FIG. 3, the optical member 120 may be injected into the injection hole.

Since the injection hole 111 is exposed to the surface of the lens body 110, when the optical member 120 is inserted into the injection hole 111 in step S30, the optical member 120 may be exposed to the outside. Since the optical member 120 is exposed, light incident from the outside can be effectively aligned.

In one embodiment, the optical member 120 may be formed by curing a second material in another device. The insert unit 30 may manufacture the adjustable intraocular lens 100 by inserting the hardened optical member 120 into the injection port 111.

In one embodiment, the optical member 120 may be formed by hardening at the injection port 111 of the lens body 110. The insert unit 30 may form the optical member 120 by inserting a fluid second material into the injection hole 111 and hardening the inserted second material.

In an optional embodiment, the method may further include forming a coating layer that coats the outside of the lens body. The coating layer may protect the lens body or exposed optical members.

The optical member 120 may selectively pass some of the incident external light. The optical member 120 may reflect part of the incident light and pass part of it depending on the refractive index. Additionally, if the incident angle of external light is greater than or equal to the critical angle of the optical member 120, the optical member 120 may reflect all of the incident light. Additionally, if the incident angle of external light falls within a predetermined range, all of the incident light can pass through.

The optical member 120 allows only a portion of the external light incident on the adjustable intraocular lens 100 to pass through, thereby creating a clear image on the retina. The optical member 120 creates an effect similar to the pinhole effect, but compared to the pinhole effect, the total amount of light passing through and the total area through which light can pass are greatly increased, resulting in a brighter and clearer effect on the retina. Allow images to be created.

The method of manufacturing an adjustable intraocular lens according to an embodiment of the present invention can improve the performance of the adjustable intraocular lens 100. In the method of manufacturing an adjustable intraocular lens, the injection port 111 may be formed to extend inward from the surface of the lens body 110 so that the optical member 120 can be disposed on the surface of the lens body 110. The optical member 120 disposed on the surface of the lens body 110 selectively passes incident external light with high efficiency, thereby improving the performance of the adjustable intraocular lens 100.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various modifications and variations can be made without departing from the spirit and scope of the invention. Accordingly, the scope of the appended patent claims will include such modifications or variations as long as they fall within the gist of the present invention.

1: Apparatus for manufacturing an adjustable intraocular lens
10: Chamber
20: Curing unit
30: Insert unit
40: coating unit
100: Adjustable intraocular lens
110: lens body
120: Optical member

Claims (8)

a chamber in which a first substance, which is a fluid, is stored;
a curing unit that irradiates ultraviolet rays into the chamber to cure the first material to form a lens body having a plurality of injection holes; and
An insert unit for inserting a second material different from the first material into the injection port of the lens body. According to claim 1,
The curing unit is
An apparatus for manufacturing an accommodative intraocular lens, forming a plurality of injection ports extending inwardly from a surface of the lens body. According to claim 1,
The curing unit is
An apparatus for manufacturing an adjustable intraocular lens, forming a plurality of injection ports disposed on at least one of the upper and lower surfaces of the lens body. According to claim 1,
The insert unit is
An apparatus for manufacturing an accommodative intraocular lens, wherein the second material having a different refractive index from the first material is fixed to the injection port. According to claim 1,
A coating unit for coating the lens body injected with the second material. storing a first substance, which is a fluid, in a chamber;
curing the first material by irradiating ultraviolet rays along a preset path to the chamber to form a lens body having an injection port; and
A method of manufacturing an accommodative intraocular lens, comprising: inserting a second material into the injection port. According to clause 6,
In the step of forming the lens body,
A method of manufacturing an accommodative intraocular lens, wherein the lens body is sequentially cured in the height direction using a preset model to form an injection port extending inward from the surface of the lens body. According to clause 6,
In the step of forming the lens body,
A method of manufacturing an accommodative intraocular lens, forming a plurality of injection ports disposed on at least one of the upper and lower surfaces of the lens body.

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