KR101884112B1 - Intraocular lens - Google Patents

Abstract

An intraocular lens according to an embodiment includes an optical portion; And a plurality of side portions arranged to be symmetrical to each other on the side surface of the optical portion, wherein the plurality of side portions are provided with a gripping member, and the holding member or the lens capsule circular incision portion for fixing the intraocular lens to the sclera is fixed .

Description

Intraocular lens {INTRAOCULAR LENS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an intraocular lens, and more particularly, to an intraocular lens including a side portion provided with a gripping member.

If the lens capsule is lost during cataract surgery, IOL can not be inserted into the lens capsule, and intraocular lens fixation can be performed in this case. Intraocular lens fixation is a technique in which a thread is fixed to the support of the intraocular lens and the needle is used to fix the needle to the sclera. Such an intraocular lens scleral fixation is a time-consuming procedure and may cause visual impairment of the patient due to tilting of the intraocular lens after surgery.

In the case of severe contraction of the lens capsule after cataract surgery, dissociation of the ciliary body may proceed and central lens dislocation and tilting may occur. In severe cases, the cataract can be converted to dislocation of the intraocular lens.

Negative dysphotopsia, which may occur after cataract surgery, is a symptom of 'crescent-shaped shadow' that obscures the visual field of the ear, which may occur in patients with intraocular lens implantation in the lens capsule. One of the causes of these phonemic aphasia is the path change of refracted light at the optical edge of the IOL.

Various intraocular lenses have been developed to prevent the problems associated with cataract surgery.

For example, KR 10-2008-0065126, filed on July 4, 2008, discloses a method for correcting refractive errors after surgery of intraocular lenses and intraocular lenses.

An object of the present invention is to provide an intraocular lens capable of easily performing time-consuming intraocular lens scleral fixation in a short period of time and improving the positional stability of an intraocular lens after surgery.

An object of the present invention is to provide an intraocular lens capable of preventing decentration, tilting, and dislocation of the intraocular lens due to shrinkage of the lens capsule circular incision after contraction of the lens capsule circular incision after cataract surgery.

An object of the present invention is to provide an intraocular lens capable of preventing light from being refracted at the corners of an optical portion of an intraocular lens to prevent the occurrence of post-operative visual abnormalities.

According to an aspect of the present invention, there is provided an intraocular lens comprising: an optical unit; And a plurality of side portions arranged to be symmetrical to each other on the side surface of the optical portion, wherein the plurality of side portions are provided with a gripping member, and the holding member or the lens capsule circular incision portion for fixing the intraocular lens to the sclera is fixed .

According to one aspect, the plurality of side portions include an upper element extending outwardly from a side surface of the optical portion; And a lower element extending outwardly from the side surface of the optical portion and facing the upper element, the gripping member being disposed between the upper element and the lower element.

According to one aspect of the present invention, a first fitting protrusion is formed at a lower end of the upper element, a second fitting protrusion is formed at an upper end of the lower element, and the first fitting protrusion and the second fitting protrusion include a hypotenuse .

According to one aspect of the present invention, the first fitting protrusions and the second fitting protrusions are formed to be symmetrical to each other, or the hypotenuses included in the first fitting protrusions and the second fitting protrusions are formed to be shifted from each other, The hypotenuses included in the second fitting protrusions may be formed side by side.

According to one aspect of the present invention, the gripping member is provided with a cochlea-shaped groove, and the thread or lens capsule circular incision can be rotated and fixed along the groove.

According to one aspect of the present invention, the optical unit may further include a plurality of supports connected to the plurality of side portions adjacent to the optical unit.

According to the intraocular lens according to one embodiment, time-consuming intraocular lens scleral fixation can be easily performed in a short time, and postoperative stability of the intraocular lens can be improved.

According to the intraocular lens according to one embodiment, after the cataract surgery, contraction of the lens capsule circular incision can be prevented, so that the center of the lens capsule can be prevented from deviating, tilting and dislocating due to contraction of the lens capsule circular incision.

According to an embodiment of the present invention, the light refracted at the optical portion edge of the IOL can be blocked, thereby preventing the occurrence of post-operative visual abnormalities.

Figures 1A and 1B illustrate an intraocular lens according to one embodiment.
2 (a) to 2 (d) show various shapes of the side portion and the support portion.
Figs. 3 (a) to 3 (e) show the shape of various holding members formed on the side surface portion.
4 (a) to 4 (d) illustrate a process in which a thread is inserted through a scleral for fixation of an intraocular lens.
5 (a) to 5 (c) show the process of fixing the intraocular lens to the chamber.
6 shows a state in which the intraocular lens is fixed to the lens capsule circular incision.
Fig. 7 shows a state in which the light refracted at the edge of the optical part is blocked by the support.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

The components included in any one embodiment and the components including common functions will be described using the same names in other embodiments. Unless otherwise stated, the description of any one embodiment may be applied to other embodiments, and a detailed description thereof will be omitted in the overlapping scope.

FIGS. 1A and 1B illustrate various embodiments of the side and support portions, and FIGS. 3A to 3E illustrate various embodiments of the intraocular lens according to the present invention, And shows the shape of the holding member.

Referring to FIG. 1A, an intraocular lens 10 according to an embodiment may include an optical portion 100, a plurality of side portions 200, and a plurality of supports 300.

The optical unit 100 refers to a circular portion serving as a lens of the intraocular lens.

At this time, the optical unit 100 may be made of various materials having transparency, but may be made of at least one of plastic, silicone, and acrylic.

A plurality of side portions 200 may be connected to the side surface of the optical unit 100.

The plurality of side portions 200 may be connected to each other at a side of the optical portion 100 so as to face each other or to be symmetrical with respect to each other.

Specifically, the plurality of side portions 200 may be formed so as to protrude radially from the center of the optical portion 100 on the side of the optical portion 100, and may be arranged to face each other with respect to the optical portion 100.

At this time, the plurality of side portions 200 may be provided with a gripping member 210.

The grasping member 210 may have a thread or a lens capsule circular incision for fixing the intraocular lens inserted or penetrated into the plurality of side parts 200 to the sclera. Whereby the intraocular lens 10 can be stably fixed to the sclera or lens capsule circular incision.

For example, although the grip member 210 is shown as a holding space in the plurality of side portions 200 in FIG. 1, the grip member 210 may have a protruding shape that protrudes outward from the plurality of side portions 210 It is natural that it can be provided. Therefore, the shape of the gripping member 210 can be any shape as long as the thread or the lens capsule circular incision for fixing the intraocular lens to the sclera can be stably fixed. Hereinafter, a case will be described in which the grip member 210 is provided as a holding space in the plurality of side portions 200. [

The plurality of supports 300 may be connected to the side of the optical unit 100 to serve as a support.

At this time, the plurality of support portions 300 may be connected to a plurality of side portions 200 at a side of the optical portion 100, for example. However, the arrangement of the plurality of support portions 300 is not limited to this, and it is natural that the plurality of support portions 300 can be directly connected to the plurality of side portions 200.

The plurality of support portions 300 may extend in the tangential direction on the side of the optical portion 100, which is not the radial direction, unlike the plurality of side portions 200 on the side of the optical portion 100.

This is to prevent a plurality of support parts 300 from colliding with the scleral or lens capsule circular incision when they are fixed to the sclera or lens capsule circular incision part in the plurality of side parts 200.

However, the configuration of the intraocular lens 10 according to one embodiment is not limited to this, and it is natural that the plurality of supports 300 may not be included as shown in FIG. 1B. In order to supplement the role of the plurality of support portions 300, the plurality of side portions 200 may have a greater length or width than the side portion 200 shown in FIG. 1A. Whereby the length or the width of the gripping member 210 shown in FIG. 1B can be made larger than that of the gripping member 210 shown in FIG. 1A.

2 (a) to 2 (d), the optical portion 100, the plurality of side portions 200, and the plurality of support portions 300 may be arranged in various forms.

2 (a) is thinner than the plurality of side portions 200 shown in FIG. 1, and the shapes of the optical portion 100 and the plurality of supporting portions 300 are the same as those of FIG.

FIG. 2 (b) shows a case where the plurality of supports 300 shown in FIG. 1 are configured differently, and FIG. 1 shows a plurality of supports 300 extending from the side of the optical unit 100, As shown in FIG. 2 (b), a plurality of support portions 300 may be provided in a ring shape. At this time, the plurality of support portions 300 may be arranged to be symmetrical with respect to each other about an axis extending a plurality of side portions 200.

Fig. 2 (c) shows a case in which the plurality of side portions 200 shown in Fig. 1 are provided in four, the pair of side portions 200 are disposed adjacent to each other and disposed on one side of the optical portion 100, The pair of side portions 200 may be arranged adjacent to each other and disposed on the other side of the optical portion 100. The plurality of side portions 200 may be arranged to be symmetrical to each other with respect to the vertical center axis of the optical portion 100. At this time, the plurality of support parts 300 may be connected to a part of the plurality of side parts 200.

2 (d) is similar to the plurality of side portions 200 shown in FIG. 2 (c), except that the plurality of side portions 200 are arranged to be symmetrical with respect to each other with respect to the horizontal central axis of the optical portion 100, . At this time, the plurality of support portions 300 may be spaced from the plurality of side portions 200 and connected to the optical portion 100.

The width, thickness, shape or position of the plurality of side portions 200 and the plurality of support portions 300 connected to the side surface of the optical portion 100 may be variously changed.

3 (a) to 3 (e), the grip member 210 formed on the side portion 200 may be provided in various forms.

3 (a) to 3 (d), the side portion 200 includes an upper element 202 extending outwardly from the side surface of the optical portion 100, and an upper element 202 extending outward from the side surface of the optical portion 100 And a lower element 204 extending to face the upper element 202.

At this time, the gripping member 210 may be disposed between the upper element 202 and the lower element 204. Whereby a thread or lens capsule circular incision for fixing the intraocular lens to the sclera can be inserted between the upper element 202 and the lower element 204.

Particularly, a first fitting protrusion may be formed at the lower end of the upper element 202, a second fitting protrusion may be formed at the upper end of the lower element 204, and the first fitting protrusion and the second fitting protrusion may each include a hypotenuse can do.

This is to prevent detachment of the thread or lens capsule circular incision for securing the intraocular lens disposed on the grip member 210 to the sclera. It is preferable that the lower projection of the upper element 202 and the projection May be provided in various shapes.

3 (a), the first fitting protrusions formed at the lower end of the upper element 202 and the hypotenuses included in the second fitting protrusion formed at the upper end of the lower element 204 are formed to be shifted from each other .

Alternatively, as shown in Fig. 3 (b), the first fitting protrusion formed at the lower end of the upper element 202 and the second fitting protrusion formed at the upper end of the lower element 204 may be arranged to be symmetrical with each other.

Alternatively, as shown in Fig. 3 (c), the first fitting protrusions formed at the lower end of the upper element 202 and the hypotenuses included in the second fitting protrusion formed at the upper end of the lower element 204 are formed to be parallel to each other .

At this time, the hypotenuse included in the first fitting protrusion formed at the lower end of the upper element 202 is inclined upward from the optical part 100 toward the end of the side part 200, It is common that the hypotenuse included in the two fitting projections is formed to be inclined upward from the end of the side portion 200 toward the optical portion 100. [

It is of course also possible that the lower end of the upper element 202 and the upper end of the lower element 204 may be provided in planar form, as shown in Fig. 3 (d).

Further, as shown in Fig. 3 (e), the gripping member 210 may be provided with a groove of a cochlea. Whereby the thread or lens capsule circular incision inserted into the side portion 200 can be rotated along the groove and fixed within the side portion 200 or the gripping member 210.

The structure of the intraocular lens 10 according to one embodiment has been described. Hereinafter, the case where the intraocular lens 10 is applied to cataract surgery in the ophthalmic area will be described in detail.

4 (a) to 4 (d) illustrate a process in which a thread is inserted through a scleral for securing an intraocular lens, FIGS. 5 (a) to 5 (c) FIG. 6 shows a state in which the intraocular lens is fixed to the lens capsule circular incision, and FIG. 7 shows a state in which light refracted at the optical part edge is blocked by the support part.

Referring to Figs. 4 (a) to 4 (d), in order to fix the intraocular lens to the sclera A, the thread B may be arranged in a rectangular shape through the sclera A. Whereby the yarn B can be arranged in a circular space formed in the sclera A so as to be parallel to each other in the horizontal direction.

At this time, the thread B may be made of a non-absorbable material, for example, and may be removed after surgery. However, it is to be understood that the thread B may be provided, for example, of an absorbent material, and need not be removed later.

5 (a) to 5 (c), the yarn B disposed through the sclera A can be sandwiched between the plurality of side portions 200.

At this time, the plurality of side portions 200 are arranged in the vertical direction, and the thread B arranged in the horizontal direction can be inserted into the plurality of side portions 200.

The plurality of side portions 200 may be provided with a chamber B exposed in a circular space formed in the sclera A and the optical portion 100 may be disposed in the center of the circular space formed in the sclera A. have.

Therefore, taking into consideration that the thread B is fixed to the plurality of side portions 200, the intraocular lens scleral fixation can be relatively easily performed by arranging the thread B through the sclera A, and the operation time can be shortened.

6, a lens capsule circular incision B may be formed inside the sclera A, and the lens capsule circular incision B may be directly fixed to the plurality of side portions 200. As shown in FIG.

As a result, it is possible to prevent the lens capsule circular incision B from contracting after the cataract surgery, and to prevent the lens center deviation, tilting, and dislocation of the lens due to shrinkage of the lens capsule circular incision B have.

7, by positioning the plurality of side portions 200 in the horizontal direction in the sclera A, the light refracted at the edge of the optical portion 100 is blocked, thereby preventing the occurrence of a negative abnormal light incidence .

Specifically, a plurality of support portions 300, which are disposed adjacent to the plurality of side portions 200, are extended outward on the scrim film A by tightly fixing the scrim A to the plurality of side portions 200, The refraction of light by the light source 300 can be blocked.

The intraocular lens according to one embodiment of the present invention can easily perform the long-time intraocular lens scleral fixation in a short time and can improve the position stability of the intraocular lens after the cataract surgery. It is possible to prevent decentration, tilting and dislocation of the intraocular lens due to contraction of the capsular incision by preventing shrinkage and to prevent light refraction after surgery by blocking light refracted at the optical edge of the IOL. .

Although 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, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: intraocular lens
100: Optical part
200:
202: upper element
204:
210:
300: a plurality of supports

Claims (6)

An optical portion; And
A plurality of side portions arranged to be symmetrical with each other on a side surface of the optical portion;
Lt; / RTI >
And a gripping member is provided on each of the plurality of side portions,
The grasping member is provided with a thread or lens capsule circular incision for fixing the intraocular lens to the sclera,
The thread is arranged in a rectangular shape passing through the sclera, the thread is arranged in a circular space formed in the scraper so as to be parallel to each other in the horizontal direction, and a thread arranged parallel to each other in the horizontal direction passes through the grip member Each of the holding members being provided on the plurality of side portions so as to face each other,
Wherein the plurality of side portions
An upper element extending outwardly from a side surface of the optical portion; And
A lower element extending outwardly from a side surface of the optical portion and arranged to face the upper element;
Lt; / RTI >
The gripping member being disposed between the upper element and the lower element,
A first fitting protrusion is formed at a lower end of the upper element,
A second fitting protrusion is formed on an upper end of the lower element,
Wherein the first fitting protrusion and the second fitting protrusion each include a hypotenuse,
The hypotenuse in each of the first fitting protrusions and the second fitting protrusions is inclined in a predetermined direction so that the deviation of the thread or the lens capsule circular incision inserted through the space between the first fitting protrusion and the second fitting protrusion Prevented intraocular lens.
delete delete The method according to claim 1,
The first fitting protrusions and the second fitting protrusions are formed to be symmetrical to each other or the hypotenuses included in the first fitting protrusions and the second fitting protrusions are formed to be shifted from each other or the first fitting protrusions and the second fitting protrusions In which the hypotenuses included in the eye are formed side by side.
delete The method according to claim 1,
And a plurality of supports connected to the side of the optical unit adjacent to the plurality of side portions.

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