WO2023121033A1

WO2023121033A1 - Intraocular lens support and supporting assembly

Info

Publication number: WO2023121033A1
Application number: PCT/KR2022/019198
Authority: WO
Inventors: 박진형
Original assignee: 주식회사 메디버스
Priority date: 2021-12-21
Filing date: 2022-11-30
Publication date: 2023-06-29
Also published as: KR20230094358A

Abstract

Provided is an intraocular lens support comprising: a supporting ring; grooves formed in the inner peripheral surface of the supporting ring so as to fix an intraocular lens; and a plurality of suture thread holes formed in the supporting ring so as to allow suture threads to pass therethrough.

Description

IOL support and support assembly

The present disclosure relates to an intraocular lens support and support assembly.

A cataract is a disease in which the lens of the eye becomes cloudy, causing visual impairment. The degree of opacity of the lens varies, and accordingly, light entering the eye does not pass through the lens properly, resulting in blurred vision. In the case of geriatric cataract, the refractive power of the lens increases in the early stage of onset, resulting in myopia, and as the symptoms progress, the blue color becomes difficult to see. Cataracts usually progress slowly and can ultimately lead to blindness. It usually affects both eyes, but in most cases one eye is affected first and then the other.

In the treatment of cataracts, a surgical treatment called "phacoemulsification" is most widely used. This operation proceeds in the order of emulsifying the cataract lens using ultrasound, removing the emulsified lens by suction, and inserting an intraocular lens (IOL).

On the other hand, there is a problem of "IOL dislocation" in which the implanted intraocular lens deviates from its original position in patients who have undergone cataract surgery. In order to prevent it from moving out of its position again, "IOL Scleral Fixation", a surgical therapy, is widely used. This therapy is performed by hanging one end of the suture on one end of the intraocular lens and tying the other end of the suture to the sclera to fix it.

According to a recent study, "IOL Decentration" and "IOL Tilt" appear in the majority of patients who underwent conventional intraocular lens scleral fixation. If the intraocular lens is decentered or tilted, the patient's visual acuity may deteriorate and astigmatism may occur. The present disclosure relates to a support body and a support assembly for preventing such deviation and tilt of an intraocular lens.

The present invention uses a support for supporting an existing intraocular lens to prevent deviation and inclination of the intraocular lens.

The present invention also facilitates the height adjustment of the intraocular lens by using the spiral groove of the support.

The technical problem to be achieved by the present invention is not limited to the above problem, and other technical problems can be inferred from the following embodiments.

According to one embodiment, the intraocular lens support includes a support ring; a groove formed on an inner circumferential surface of the support ring to fix the intraocular lens; and a plurality of suture holes formed in the support ring and passing suture threads therethrough.

According to one embodiment, an intraocular lens support assembly includes an intraocular lens including an optic and a haptic extending from one side of the optic toward the outside of the optic; and the intraocular lens support, and the haptic may be assembled by being inserted into the groove.

Details of other embodiments are included in the detailed description and drawings.

According to the present invention, it is possible to prevent deviation and inclination of the intraocular lens using the support of the present disclosure without damaging the general structure of the widely used intraocular lens.

In addition, according to the present invention, the position of the intraocular lens can be adjusted within the eye in a simple way to respond to a patient's deterioration of vision after surgery or to adjust the focus of the eye, so that the position of the intraocular lens can be adjusted more efficiently.

Effects of the invention are not limited to only the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 shows one shape of a general intraocular lens.

2 shows an embodiment of intraocular lens scleral fixation.

3 shows an embodiment of intraocular lens scleral fixation.

4 shows an embodiment of an intraocular lens support according to the present disclosure.

Fig. 5 shows a top view of the intraocular lens support of Fig. 4;

FIG. 6 shows a cross-sectional view of the intraocular lens support of FIG. 4 .

7 shows an embodiment of an intraocular lens support according to the present disclosure.

FIG. 8 shows a cross-sectional view of the intraocular lens support of FIG. 7 .

9 shows an embodiment of an intraocular lens support according to the present disclosure.

10 shows an embodiment of an intraocular lens support according to the present disclosure.

FIG. 11 shows an embodiment of an intraocular lens support assembly in which an intraocular lens is assembled to the intraocular lens support of FIG. 4 .

FIG. 12 shows a cross-sectional view of the intraocular lens support assembly of FIG. 11 .

FIG. 13 shows an embodiment of an intraocular lens support assembly in which an intraocular lens is assembled to the intraocular lens support of FIG. 7 .

FIG. 14 shows an embodiment of the intraocular lens support assembly of FIG. 13 .

FIG. 15 shows an embodiment of the intraocular lens support assembly of FIG. 13 .

The embodiments described in this disclosure are illustrative rather than limiting of the disclosure, and a person skilled in the art may design many alternative embodiments without departing from the scope of the disclosure defined by the appended claims. there is. The terms used in the embodiments have been selected as general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. In addition, in a specific case, there are also terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the corresponding description. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

Expressions in the singular as used herein include both the singular and the plural unless the context clearly dictates the contrary.

Throughout this specification, when a part is said to "include" certain elements or certain steps, this does not necessarily mean that a part must include all of the elements or steps, unless specifically stated to the contrary. or the inclusion of elements or steps other than those listed throughout the specification, but merely means that they may be further included.

Also, terms including ordinal numbers such as first and second used in this specification may be used to describe various components, but the components should not be limited by terms including the ordinal numbers. The terms are used solely for the purpose of distinguishing one element from another element in one part of the specification in context. For example, a first component may be referred to as a second component in another part of the specification without departing from the scope of the present invention, and conversely, the second component may also be referred to as a first component in another part of the specification. It can be.

In this specification, terms such as "mechanism", "element", "means", and "configuration" may be used broadly, and are not limited to mechanical and physical components. The term may include a meaning of a series of software routines in association with a processor or the like.

In this specification (particularly in the claims), the use of the term "the" and similar denoting terms may correspond to both the singular and the plural. In addition, when a range is described, it includes individual values belonging to the range (unless otherwise stated), as if each individual value constituting the range was described in the detailed description. Finally, if the order of the steps constituting the method is not explicitly described or stated to the contrary, the steps may be rearranged in an appropriate order and are not necessarily limited to the order in which the steps are described. The use of all examples or illustrative terms (eg, etc.) is simply for explaining technical ideas in detail, and the scope is not limited by the examples or illustrative terms unless limited by the claims. A person skilled in the art may add various modifications, combinations, and changes to the embodiments disclosed in this specification according to design conditions and factors to construct new embodiments that fall within the scope of the claims or equivalents thereof.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. For brevity of the specification and drawings, various functional components not relevant to understanding the present disclosure have been omitted from the drawings. However, those skilled in the art will readily appreciate that various additional components may be included as part of specific embodiments of the present disclosure to enable additional functionality not specifically described herein.

1 shows a shape of a general intraocular lens 100 . The intraocular lens 100 may include an optic 110 serving as a lens that refracts light and a haptic 120 extending from one side of the optic toward the outside of the optic. The optic 110 replaces the existing lens of a patient with cataract.

The intraocular lens 100 may include at least one or more haptics 120 . The haptic 120 supports the optic 110 so that the intraocular lens 100 and the optic 110 can be maintained in their positions in a capsular bag. The intraocular lens 100 of FIG. 1 has a shape including two spiral thin haptics 120, but this is only an example, and the support body and support assembly of the intraocular lens of the present disclosure are shown in FIG. It is not limited only to the shape of the indicated intraocular lens 100 and can be applied to all intraocular lenses including elastic haptics. The haptic 120 of the intraocular lens 100 shown in FIG. 1 may also have a certain level of elasticity, so when an external force is applied to the outer end of the haptic 120 in the direction toward the center of the optic 110, the haptic 120 moves through the optic ( 110) can be compressed or bent. In this case, the width L of the intraocular lens may be reduced. The width L of the uncompressed intraocular lens may be between about 13 mm and 13.5 mm.

2 and 3 show an embodiment of intraocular lens fixation in which the intraocular lens 100 is fixed to the sclera. Referring to FIG. 2 , the intraocular lens 100 with the suture 230 hooked on the haptic 120 may be inserted into the eye through the incision 220 . At this time, the suture 230 may be wound around the haptic 120, passed through a hole provided in the haptic 120 or the optic 110, or fixed to the intraocular lens 100 through a knot.

Referring to FIG. 3 , when the intraocular lens 100 is properly positioned in the eye, the suture 230 is pulled so that the intraocular lens 100 does not move in the eye through tension. At this time, in order to maintain the tension of the pulled suture 230, one end of the suture may be tied to the sclera 210 to form a knot 240. The incision 221 may then be closed to complete the surgery.

According to the scleral fixation of the intraocular lens presented in FIGS. 2 and 3 above, the intraocular lens 100 is disoriented or tilted due to reasons such as the two-point support of the artificial lens 100 on the suture 230, thereby improving the patient's visual acuity. degradation may occur.

4 shows an embodiment of a support for an intraocular lens according to the present disclosure. The intraocular lens support 400 includes a support ring 450, a groove 410 formed on the inner circumferential surface of the support ring 450 to fix the intraocular lens, and a plurality of suture holes formed in the support ring 450 through which sutures pass. 420) may be included.

In one embodiment, the support 400 may serve to support at least one side of the intraocular lens and fix the intraocular lens so that the intraocular lens does not move in the eye. Specifically, the support 400 may support the intraocular lens elastically compressed toward the center of the intraocular lens so that the intraocular lens does not elastically expand again. In this case, the support 400 may include a surface receiving a force to elastically expand in a direction extending from the center of the intraocular lens. For example, the support 400 may prevent elastic expansion of the intraocular lens by using the inner circumferential surface of the support ring 450 . In this case, the inner circumferential surface of the support ring 450 generates a vertical drag force toward the center of the intraocular lens as a counteraction, and the vertical drag creates a fixed frictional force that prevents one side of the artificial lens from moving by being fixed to the support ring 450. can cause Accordingly, in this case, the intraocular lens may be fixed to the support 400 using a fixed frictional force.

Since the width L of the uncompressed intraocular lens may be about 13 mm to about 13.5 mm, the inner diameter d ₁ of the support ring 450 may be set to 12 mm or less in order to prevent the elastic expansion of the intraocular lens. However, those skilled in the art are not limited to the inner diameter d ₁ of the support ring 450 of the present disclosure, and if d ₁ is a value slightly smaller than the width L of a general intraocular lens, the above effect may be generated by preventing the elastic expansion of the intraocular lens. It is easy to see that you can.

Although the intraocular lens can be fixed to the support 400 of the intraocular lens only by the fixing friction force, when a force parallel to the axial direction of the intraocular lens (hereinafter referred to as “vertical direction”) acts on one side of the intraocular lens that comes into contact with the support 400 , there is a risk that the intraocular lens slips out of the support 400 because a force exceeding the fixed frictional force acts on one side of the intraocular lens. Accordingly, in one embodiment, the support 400 of the intraocular lens may include a groove formed on a surface of the intraocular lens receiving a force for elastic expansion. Specifically, the support 400 may include a groove 410 formed on the inner circumferential surface of the support ring 450 to fix the intraocular lens. In this case, the tip of the haptic of the intraocular lens may be inserted into the groove 410 of the support 400 and fixed. As described above, in order to prevent a situation in which one end of the intraocular lens slips from the support in the up and down direction, in one embodiment, the groove 410 prevents the up and down movement of the intraocular lens as shown in FIG. 4 . It may be formed on the inner circumferential surface of the support ring 450 in the blocking direction. If the groove 410 in this direction is used, even if the haptic end of the intraocular lens slides up and down from the intraocular lens support 400, the haptic end of the intraocular lens comes into contact with the wall surface of the groove 410. It can help prevent the intraocular lens from sliding up and down any more. In one embodiment, in order to prevent the situation itself in which the intraocular lens slips on the support 400, the vertical width of the groove 410 is set to be the same as or similar to the vertical thickness of the haptic of the intraocular lens, thereby reducing the haptic of the intraocular lens. It can be inserted into the groove 410 so that it can be fixed. This helps in more complete fixation of the intraocular lens.

The intraocular lens support according to the present disclosure may include a ring, specifically the support ring 450, as shown in FIG. Any form may be included as long as the member includes a surface that receives an elastic expansion force in a direction extending from the member. For example, the support of the intraocular lens may include, instead of the support ring 450, a member configured such that surfaces facing each other in an H shape, such that the opposing surfaces withstand the force of elastic expansion of the intraocular lens. there is.

In one embodiment, the support 400 of the intraocular lens may include a suture hole through which a suture is passed in order to fix the support 400 to the eye. Specifically, the support 400 may include a plurality of suture holes 420 formed in the support ring 450 to pass sutures therethrough. The plurality of suture holes 420 serve as entrances through which sutures can come in and out of the support ring 450 and allow the suture to be caught on the support ring 450 . The suture caught on the support ring 450 may be fixed to the eye by tying a knot in the sclera of the eye. For example, the suture may enter the inside of the support ring 450 through one of the plurality of suture holes 420 and come out of the support ring 450 through another one of the plurality of suture holes 420. . In this way, the suture can be caught on the support ring 450 using the plurality of suture holes 420 . To this end, in more detail, the support 400 may further include at least one

suture passage

431 or 432 communicating with at least two or more of the plurality of suture holes, as shown in FIG. 5 . For example, the suture enters the inside of the support ring 450 through one of the plurality of suture holes 420, proceeds along the suture passage, and then passes through another one of the plurality of suture holes 420 to the support ring. (450) You can go outside. The suture passage serves to guide the ends of the suture, and may help the suture to more easily enter and exit the plurality of suture holes 420 . In addition, the suture passage prevents the suture from being twisted or knotted inside the support ring 450 so that tension is not properly transmitted and the support ring 450 is not well supported.

FIG. 5 shows a top view of the support 400 shown in FIG. 4 . According to FIG. 5 , the support 400 may include a first suture hole 421 , a second suture hole 422 , a third suture hole 423 , and a fourth suture hole 424 . Specifically, the plurality of suture holes 420 included in the support 400 are the first suture hole 421, the second suture hole 422, the third suture hole 423, and the fourth suture hole 424. can include Although four

suture holes

421, 422, 423, and 424 are shown in the support 400 shown in FIG. 5, the support 400 may include more or fewer suture holes for proper implementation of the present disclosure. is obvious to those skilled in the art. Preferably, the support 400 may include at least three suture holes to prevent the support 400 from tilting in the eye.

Furthermore, since it is preferable to use either an inlet or an outlet of the suture, an even number of suture holes may be provided. Accordingly, the support 400 may include four suture holes. In this case, the suture enters and exits through one and the other of the four suture holes, respectively, and both ends of the suture coming out of the support ring 450 are tied together so that one side of the support ring 450 may be fixed to the sclera. Similarly, other sutures may enter and exit through one and the other of the remaining two suture holes, and both ends of the suture coming out of the support ring 450 may be tied together to fix the other side of the support ring 450 to the sclera. Hereinafter, this fixing method is referred to as "the four-point fixing method".

In one embodiment, the first suture hole 421 and the second suture hole 422 communicate with each other through an arbitrary suture passage, and the third suture hole 423 and the fourth suture hole 424 are connected to an arbitrary suture thread. They can communicate with each other through passages. For example, the support 400 may include a first suture passage 431 communicating the first suture hole 421 and the second suture hole 422 . Similarly, the support 400 may include a second suture passage 432 communicating the third suture hole 423 and the fourth suture hole 424 . Although two

suture passages

431 and 432 are shown in the support 400 shown in FIG. 5, it is obvious to those skilled in the art that the support 400 may include more or less suture passages for proper implementation of the present disclosure. do. For example, the support 400 may include a suture passage through which all of the first suture hole 421, the second suture hole 422, the third suture hole 423, and the fourth suture hole 424 communicate with each other. there is. Through this design, there is an advantage in that manufacturing of the support 400 can be made more convenient.

When the support 400 is fixed to the sclera by the “four-point fixation method,” the support 400 is fixed to the sclera by the tension of the suture passing through the first to fourth suture holes 421, 422, 423, and 424. In order to prevent unnecessary inclination or deviation of the support body 400, the center of tension acting on the suture passing through the first to fourth suture holes 421, 422, 423, and 424 is the same as the center of gravity of the support body 400. It is desirable that they closely match. In addition, considering the convenience of manufacturing and the symmetrical structure of the eye, it is preferable that the density of the support ring 450 in the circumferential direction is substantially constant. Accordingly, according to one embodiment, the first suture hole 421 and the third suture hole 423 are axially symmetric with respect to the central axis C of the support ring 450, and the second suture hole 422 and the The 4 suture holes 424 may be axially symmetric with respect to a central axis. This has an advantage in that the center of gravity of the support ring 450 can be easily matched with the center of tension acting on the suture by symmetrically supporting the support ring 450 having a substantially constant density in the circumferential direction of the suture.

In the above-described embodiment, when the distance between the first suture hole 421 and the second suture hole 422 is excessively narrow, the first suture hole 421 and the second suture hole 422 are symmetrically formed. The distance between the third suture hole 423 and the fourth suture hole 424 is also excessively narrowed, and the "four-point fixing method" is similar to the "two-point fixing method", so that the support ring 450 Some of the advantages of the "four-point fixation method" to prevent deviation and inclination of may be lost. In addition, when the interval between the first suture hole 421 and the second suture hole 422 is excessively wide, both ends of the suture passing through the first suture hole 421 and the second suture hole 422 are connected to each other. If a knot is made by tying the knot, the distances from the first suture hole 421 and the second suture hole 422 to the knot may be too great, so that the fixing stability of the support ring 450 may be reduced. This is because the distance between the third suture hole 423 and the fourth suture hole 424 formed symmetrically with the first suture hole 421 and the second suture hole 422 is also excessively widened, so that the third suture hole 423 and the fourth suture hole 424 in the same manner. In order to prevent the above problem, in one embodiment, the first suture hole 421 and the second suture hole 422 have a central angle (a) of 30 degrees or more with the center (C) of the support ring as the center of the circle. It can be formed at both ends of an arc of 60 degrees or less. In this case, the third suture hole 423 and the fourth suture hole 424 are axially symmetric with the first suture hole 421 and the second suture hole 422, respectively, with respect to the central axis C of the support ring. can be formed in place. In this case, "30 degrees or more and 60 degrees or less" may include not only "30 degrees" and "60 degrees" exactly, but also values in the vicinity thereof, such as "29 degrees" and "61 degrees".

FIG. 6 shows a cross-sectional view of the support ring 450 of FIG. 5 cut in the direction A-A'. According to FIG. 6 , in one embodiment, a plurality of

suture holes

421 , 422 , 423 , and 424 or

suture passages

431 and 432 may be formed at the upper end 440 of the support ring 450 . This allows the support ring 450 to have all of the suture holes 421, 422, 423, and 424, the

suture passages

431 and 432, and the groove 410 even if the support ring 450 is thin, and the suture It has the advantage of being able to minimize the length of .

According to FIG. 6 , in one embodiment, the support 400 may include a groove 410 formed on the inner circumferential surface of the support ring 450 to fix the intraocular lens, and the support 400 may include the groove 410. As detailed structures, peaks 411 and valleys 412 may be included. In the embodiment shown in FIG. 6, the ends of the peaks 411 and valleys 412 are shown as sharp, but the present disclosure is not limited thereto, and the central axis C of the support ring 450 from the inner circumferential surface of the support ring 450 The protruding structure may be a mountain 411, and the structure recessed in the inner circumferential surface of the support ring 450 may be a valley 412. For example, the tip of the peak 411 is rounded to prevent unnecessary damage to eyes. As another example, the end of the valley 412 may be rounded to have a similar curvature to the circumferential surface curvature of the haptic. This shape can increase the frictional force between the haptic and the inner circumferential surface, so that the intraocular lens can be better fixed to the support ring 450. In addition, as shown in FIG. 6, the inner diameter d ₁ of the support ring 450 can be defined as the length measured from the bone 412 at one end of the support ring 450 to the bone 412 at the opposite end. Able to know.

7 shows an embodiment of an intraocular lens support. In one embodiment, the support may further include a membrane 461 covering at least a portion of the first hollow corresponding to the inner region of the support ring 460 . The membrane 461 can prevent the intraocular lens from being separated in the vertical direction when the intraocular lens is coupled to the intraocular lens support. Film 461 may be transparent, translucent, or opaque. Since the transparent membrane hardly blocks the patient's field of view, there is an advantage in securing the patient's field of view to the maximum.

Even if the film 461 is transparent, the surface of the film 461 may be unevenly formed or there may be slight deformation of the film 461 due to manufacturing tolerances. When the membrane 461 covers the intraocular lens, light passing through the intraocular lens and entering the patient's eye is refracted in an undesirable direction when passing through the membrane 461, which may adversely affect the patient's vision correction. Accordingly, in one embodiment, the membrane 461 may have a donut shape including a second hollow 462 concentric with the first hollow. Therefore, the area of the second hollow 462 is smaller than the area of the first hollow. This has the advantage of reducing adverse effects on the patient's eyesight or field of view caused by the membrane 461 . The second hollow 462 may preferably have a circular shape sharing a center with the first hollow or a shape close thereto. The circular shape or a shape close thereto of the second hollow 462 has an advantage of securing symmetry of the patient's field of view and protecting the patient's eyes, compared to other hollow shapes having corners. The diameter d ₂ of the second hollow 462 may be 3 mm or thereabouts.

FIG. 8 shows a cross-section of the intraocular lens support of FIG. 7 taken along the AA-AA' plane. As shown in FIG. 8 , the membrane 461 may be formed at the lower end of the support ring 460 . The membrane 461 formed at the lower end in this way can prevent the intraocular lens assembled to the support from escaping to the lower end of the support ring 460 . However, the position of the membrane 461 is not limited to the lower end of the support ring 460, and may be the middle or upper end of the support ring 460, if necessary. In one embodiment, the membrane 461 may be integrally manufactured with the support ring 460 or may be separately manufactured and assembled to the support ring 460 through a joint 863 . The bonding portion 863 may be formed by a method known in the art, such as being formed through fusion bonding, using an adhesive, or having a separate assembly structure to be assembled without a separate adhesive. Although the bonding portion 863 of FIG. 8 is shown to be formed between the circumferential surface of the membrane 461 and the inner circumferential surface of the support ring 460, the location of the bonding portion 863 is not limited thereto. For example, the bonding portion 863 may be formed between the upper surface of the membrane 461 and the lower surface of the support ring 460 to join the upper surface of the membrane 461 and the lower surface of the support ring 460 .

The thickness of the membrane 461 is determined so as to maximize the range of movement of the intraocular lens in the up and down direction when the intraocular lens is coupled to the support, and to minimize the effect of the presence of the membrane 461 on the patient's visual acuity and field of view. It should be set to a thickness that is sufficiently thin and has minimal rigidity in order to prevent the intraocular lens from detaching from the support. Thus, preferably, the thickness of the film 461 may be at or near 10 μm.

9 shows an embodiment of an intraocular lens support according to the present disclosure. In one embodiment according to FIG. 9 , in the support body 900, the first suture hole 921 and the second suture hole 922 are formed at an upper end of the outer circumferential surface of the support ring 950 to pass through the first suture passage 931. The third suture hole 923 and the fourth suture hole 924 are formed at the upper end of the outer circumferential surface of the support ring and communicate with each other through the second suture passage 932, and the first suture passage 931 and Each of the second suture passages 932 may have a straight shape. This has an advantage in that when manufacturing the support 900, the suture hole and the suture passage can be easily formed using a punching tool such as a drill. In more detail, the drill tip is positioned at the location where the first suture hole 921 of the support ring 950 is to be formed, and the drill tip passes through the support ring 950 to form the second suture hole 922. The first suture hole 921 , the second suture hole 922 , and the first suture passage 931 may be formed in a single punching operation by operating the drill to come into position. In the same way, the third suture hole 923 , the fourth suture hole 924 , and the second suture passage 932 may be formed in one punching operation. In the process of fixing the support 900 according to the present disclosure to the patient's sclera, the support 900 manufactured in this way is passed through the first suture passage 931 and the second suture passage 932. There is an advantage that the suture can be passed more easily. The first suture passage 931 and the second suture passage 932 according to the present embodiment do not necessarily have to have a perfectly straight shape, but have a shape close to a straight line or a shape that can be formed through a single punching operation. It is obvious to those skilled in the art that the present embodiment can have advantages.

10 shows an embodiment of a support 1000 having a plurality of suture holes. In one embodiment, the plurality of suture holes may form an aggregate of at least three equally spaced suture holes. Here, "equal intervals" do not necessarily mean "completely equal" intervals, but mean intervals that are almost similar to each other. For example, in the process of forming a plurality of suture holes in the support ring 1050, even if an assembly composed of a plurality of suture holes is designed to include suture holes having exactly the same spacing, tolerances may occur during manufacturing, and this Due to this, the spacing may not be made "perfectly equal". However, the present disclosure considers that intervals considering these tolerances are also included in "equal intervals".

For example, according to FIG. 10 , the support 1000 has a first suture hole 1011, a second suture hole 1012, a third suture hole 1013, a fourth suture hole 1014, and a fifth suture hole. 1015, 6th suture hole 1016, 7th suture hole 1017, 8th suture hole 1018, 9th suture hole 1019, 10th suture hole 1020, 11th suture hole 1021 ) and a twelfth suture hole 1022 . The first suture hole 1011 , the second suture hole 1012 , and the third suture hole 1013 may form a first assembly. Here, the interval between the first suture hole 1011 and the second suture hole 1012 and the interval between the second suture hole 1012 and the third suture hole 1013 may be "equal intervals". Similarly, the fourth suture hole 1014, the fifth suture hole 1015, and the sixth suture hole 1016 may form a second assembly, and the seventh suture hole 1017 and the eighth suture hole 1018 and the ninth suture hole 1019 may form a third assembly, and the tenth suture hole 1020, the eleventh suture hole 1021, and the twelfth suture hole 1022 may form a fourth assembly. .

In one embodiment, the assembly may be provided with two aggregates adjacent to each other on one side of the support ring 1050 and two other aggregates adjacent to each other on the other side of the support ring 1050. For example, according to FIG. 10 , the first assembly and the fourth assembly may be provided adjacent to each other on one side of the support ring 1050, and the second assembly and the third assembly are provided on the other side of the support ring 1050. may be provided adjacently. Here, the suture may pass through the suture hole of any one of the adjacent assemblies and pass through the suture holes of the other assemblies. For example, the suture passes through the support loop 1050 through the third suture hole 1013 of the first assembly, and then passes through the support loop 1050 through the tenth suture hole 1020 of the adjacent fourth assembly. can come through. In this way, there is an advantage in that a "four-point fixing method" can be more stably implemented by passing through and entering suture holes of different assemblies adjacent to one suture. In addition, since a plurality of suture holes having different positions are included in each assembly, the user can flexibly determine the position through which the suture thread is to be passed according to the patient's eye structure or surgical environment.

In one embodiment, a plurality of suture holes corresponding to adjacent aggregates may all be communicated by a suture passage. For example, according to FIG. 10 , the plurality of suture holes corresponding to the adjacent first and fourth aggregates may communicate with each other through the first suture passage 1031 . Similarly, the plurality of suture holes corresponding to the adjacent second assembly and the third assembly may all communicate with each other through the second suture passage 1032 . This has the advantage of simplifying the design and fabrication of the suture passage.

10 shows an embodiment of a support 1000 including a plurality of suture holes. According to FIG. 10, in one embodiment, a plurality of suture holes have one end 1001 in a support ring 1050, the center C of the support ring is the center of a circle, and the central angle b is each 15 degrees, 22.5 degrees, 30 degrees, 150 degrees, 157.5 degrees, 165 degrees, 195 degrees, 202.5 degrees, 210 degrees, 330 degrees, 337.5 degrees, and 345 degrees may be formed at the other end of the arcs. For example, the central angle b between the first suture hole 1011 and one end 1001 may be 15 degrees or a value close thereto. Similarly, the central angle b between the second suture hole 1012 and one end 1001 may be 22.5 degrees or a value close thereto. Similarly, the central angle b between the third suture hole 1013 and one end 1001 may be 30 degrees or a value close thereto. Therefore, the difference between the central angle between the first suture hole 1011 and the second suture hole 1012 and the central angle between the second suture hole 1012 and the third suture hole 1013 may be 7.5 degrees or a value similar thereto. . Such an interval may help a user more efficiently determine a suture hole through which a suture is to be passed.

11 and 12 show an embodiment of a structure in which the intraocular lens 100 is coupled to a support. FIG. 11 shows an embodiment of an intraocular lens support assembly 1100 in which the intraocular lens 100 is coupled to the support 400 of FIG. 4 . In one embodiment, the intraocular lens support assembly 1100 includes an intraocular lens 100 including an optic and a haptic 120 extending from the optic in an outer direction of the optic, and an intraocular lens support 400, the haptic 120 ) can be assembled by being inserted into the groove 410. Specifically, the inner diameter of the intraocular lens support ring 450 is formed shorter than the width of the intraocular lens 100, so that the haptic 120 can be elastically compressed and inserted into the groove 410 to be assembled. Alternatively, the haptic 120 may be formed in a form in which both ends of the haptic 120 are connected to the optic 110 and coupled to the groove 410 in a material and structure that is not elastically compressed and has rigidity, for example, the haptic 120 is not a cantilever type. there is.

FIG. 12 is a cross-sectional view of the intraocular lens support assembly 1100 of FIG. 11 taken along the line BB'. In one embodiment, groove 410 may be a spiral groove. For example, as shown in FIG. 12 , the spiral groove may be formed in an inner circumferential direction of the support ring 450 along the inner circumferential surface of the support ring 450 with a certain inclination. When the haptic 120 of the intraocular lens 100 is inserted into the valley 412 of the spiral groove 410, the user moves the intraocular lens 100 in the circumferential direction 1101 of the support ring 450 as shown in FIG. It is possible to adjust the vertical height of the intraocular lens 100 by rotating it. Specifically, when the intraocular lens 100 rotates, the haptic 120 of the intraocular lens 100 inserted into the valley 412 of the spiral groove 410 moves along the inclined surface 1210 of the spiral groove 410 in the circumferential direction. It slides to 1101, so that the height of the intraocular lens 100 in the vertical direction changes. For example, the spiral groove 410 is a right-handed helix, so when the IOL 100 is rotated clockwise as shown in FIG. 11, the IOL 100 moves toward the eye as shown in FIG. 12. You can descend to (1201). Conversely, the spiral groove 410 may also have a left-handed helix shape, which is disclosed in the embodiment related to FIG. 13, but is of course equally applicable to the present embodiment. Adjusting the height of the intraocular lens 100 in the vertical direction is a simple method without reoperation when there is a need to adjust the position of the intraocular lens, such as when the patient's visual acuity deteriorates after the surgery using the intraocular lens support according to the present disclosure has already been completed. There is an advantage in that the position of can be easily moved to an appropriate position.

A widely used intraocular lens has a shape similar to the intraocular lens 100 of FIG. 1 in which haptics have a spiral shape. Therefore, in one embodiment, in the intraocular lens support assembly 1100, the haptic 120 of the intraocular lens 100 has a spiral shape that is rolled in the center of the optic, and the haptic 120 is elastically compressed to form a haptic The outer end of the helical groove 120 is inserted into one side of the spiral groove 410 and assembled, and when the intraocular lens 100 is rotated in the direction of the spiral, the intraocular lens can descend in the direction 1001 toward the eye. For example, to rotate the intraocular lens 100, the user inserts the instrument near the first intersection point 130 of the haptic 120 and the optic, and applies a force in the circumferential direction 901 to the instrument to rotate the intraocular lens 100. (100) can be pushed in the circumferential direction (901). Since the intraocular lens 100 shown in FIG. 11 has a haptic 120 in the form of a spiral that rolls in a clockwise direction, and the support ring 450 has a helical groove 410 in the form of a right-handed spiral as shown in FIG. 12, In the same way, when the intraocular lens 100 is pushed and rotated clockwise, the intraocular lens 100 descends in the direction 1001 toward the eye. Since the intraocular lens 100 shown in FIG. 11 has a spiral-shaped haptic 120 rolled in a clockwise direction, an instrument is inserted near the second intersection 140 of the haptic 120 and the optic, and It is difficult to rotate the intraocular lens in a counterclockwise direction by applying a clockwise force. In this case, in order to raise the intraocular lens in the direction opposite to the eye direction 1001, it is preferable to completely remove the intraocular lens 100 from the support 400 and then reassemble it.

The spiral shape of the haptic 120 of the intraocular lens 100 and the direction of the spiral groove of the intraocular lens support 400 shown in FIGS. 11 and 12 are just examples, and other shapes and directions may be implemented. It is obvious to those skilled in the art. For example, if the direction of the spiral groove 410 of the intraocular lens support 400 shown in FIGS. 11 and 12 is a left-handed helix, if the intraocular lens 100 is rotated by pushing it clockwise, The artificial lens rises outward. In addition, in this case, if the spiral shape of the haptic 120 of the intraocular lens 100 is rolled in a counterclockwise direction, the intraocular lens 100 inserted into the left spiral groove 410 is rotated by pushing it counterclockwise If so, the artificial lens descends in the direction toward the eye (1001).

FIG. 13 shows an embodiment of an intraocular lens support assembly 1300 in which an intraocular lens is coupled to the support of FIG. 7 . Since the spiral groove of the support ring 460 is in the form of a left-handed helix, when the intraocular lens is rotated clockwise, the intraocular lens can rise in an outer direction 1301 as shown in FIG. 13 . Since the widely used intraocular lens has a spiral-shaped haptic that rolls in a clockwise direction like the intraocular lens 100 of FIG. 1, it is easier to rotate the intraocular lens clockwise rather than counterclockwise as described above. Accordingly, the left spiral shape of the spiral groove of the support ring 460 is suitable for raising the intraocular lens in the outer direction 1301 of the eye by rotating it clockwise. Considering the above situation, the user may position the intraocular lens to be coupled to the lower end of the support ring 460 when assembling the intraocular lens with the support ring 460 . This is because when the position of the intraocular lens needs to be adjusted, such as when the patient's visual acuity deteriorates after the surgery using the intraocular lens support assembly 1300 according to the present disclosure has already been completed, the position of the intraocular lens can be moved to the outside of the eye in a simple way without reoperation. It has the advantage that it can be easily moved to .

The support of the support assembly 1300 shown in FIG. 13 includes a membrane 461 . As described above with reference to FIGS. 7 to 8 , the membrane 461 is formed at the lower end of the support ring 460 to prevent the IOL from coming off downward, thereby protecting the patient's eyes.

FIG. 14 shows an embodiment in which sutures 1331 and 1332 are inserted into the intraocular lens support assembly 1300 shown in FIG. 13 . One end of the first suture 1331 passes through the first suture hole 1311 through the support ring, moves along the first suture passage 1321 to the position of the second suture hole 1312, and 2 may pass through the support loop through the suture hole 1312. In the same way, one end of the second suture 1332 passes through the support loop through the fourth suture hole 1314 and moves along the second suture passage 1322 to the position of the third suture hole 1313. And, it can come out through the support ring through the third suture hole 1313.

15 illustrates an embodiment in which the intraocular lens support assembly 1300 shown in FIG. 13 is fixed to the sclera 1510 of the

eye using sutures

1331 and 1332. The intraocular lens support assembly 1300 may be inserted into the eye through an incision 1520 provided on one side of the sclera 1510 . When the intraocular lens support assembly 1300 is moved to an appropriate position within the eyeball, the first suture 1331 and the second suture 1332 are tied to different incisions 1520 provided on both sides of the sclera, respectively, so that a first knot ( 1341) and a second knot 1342 may be formed. At this time, both ends of the first suture 1331 and the second suture 1332 are pulled outward toward the sclera, so that an appropriate amount of tension is formed in the first suture 1331 and the second suture 1332 to support the intraocular lens. It is desirable that the assembly 1300 cannot easily move within the eye. If there is a need to adjust the vertical height of the intraocular lens after surgery, the user inserts the instrument through the incision 1520 without cutting the sutures (1331, 1332) or untying the knots (1341, 1342). By pushing and rotating the intraocular lens coupled to the support assembly 1300, the vertical height of the intraocular lens can be easily adjusted.

Claims

support ring;

a groove formed on an inner circumferential surface of the support ring to fix the intraocular lens; and

An intraocular lens support comprising a plurality of suture holes formed in the support ring and through which the suture passes.
According to claim 1,

The groove is a spiral groove, the intraocular lens support.
According to claim 2,

The helical groove is in the form of a left-handed helix, the intraocular lens support.
According to claim 1,

The intraocular lens support further comprising a membrane covering at least a portion of the first hollow of the support ring.
According to claim 4,

The intraocular lens support of claim 1 , wherein the membrane includes a second hollow concentric with the first hollow.
According to claim 1,

The intraocular lens support further comprises at least one suture passage communicating with at least two of the plurality of suture holes.
According to claim 6,

The plurality of suture holes include first to fourth suture holes,

The intraocular lens support of claim 1 , wherein the first suture hole and the second suture hole communicate with each other via any of the suture passages, and the third suture hole and the fourth suture hole communicate with each other via any of the suture passages.
According to claim 7,

The intraocular lens support, wherein the first suture hole and the third suture hole are axially symmetrical with respect to the central axis of the support ring, and the second suture hole and the fourth suture hole are axially symmetrical with respect to the central axis. .
According to claim 8,

The first suture hole and the second suture hole,

The intraocular lens support formed at both ends of an arc having a central angle of 30 degrees or more and 60 degrees or less with the center of the support ring as the center of the circle.
According to claim 7,

The first suture hole and the second suture hole are formed at an upper end of the outer circumferential surface of the support ring and communicate with each other through a first suture passage;

The third suture hole and the fourth suture hole are formed at an upper end of the outer circumferential surface of the support ring and communicate with each other through a second suture passage;

The intraocular lens support of claim 1 , wherein each of the first suture passage and the second suture passage has a straight shape.
According to claim 1,

The plurality of suture holes,

Forming an aggregate consisting of at least three suture holes having equal intervals,

The aggregate,

An intraocular lens support comprising two aggregates adjacent to each other on one side of the support ring and two other aggregates adjacent to each other on the other side of the support ring.
According to claim 11,

The intraocular lens support of claim 1 , wherein the plurality of suture holes corresponding to the adjacent assembly are all communicated by a suture passage.
According to claim 1,

The plurality of suture holes,

It is formed on the upper surface of the support ring, and the center of the support ring is the center of the circle, and the central angles are 15 degrees, 22.5 degrees, 30 degrees, 150 degrees, 157.5 degrees, 165 degrees, 195 degrees, 202.5 degrees, and 210 degrees, respectively. , 330 degrees, 337.5 degrees, and 345 degrees, respectively, the intraocular lens support formed at the other end of the arc.
According to claim 1,

The inner diameter of the support ring is 12 mm or less, the intraocular lens support.
an intraocular lens including an optic and a haptic extending from one side of the optic toward the outside of the optic; and

Including the intraocular lens support of claim 1,

The intraocular lens support assembly, wherein the haptic is inserted into the groove and assembled.
According to claim 15,

The intraocular lens support assembly of claim 1 , wherein an inner diameter of the support ring is formed shorter than a diameter of the intraocular lens, and the haptic is elastically compressed and assembled by being inserted into the groove.
According to claim 16,

The groove is a spiral groove,

The haptic has a spiral shape that is rolled into the center of the optic, and the haptic is elastically compressed so that an outer end of the haptic is inserted into one side of the spiral groove to be assembled;

The intraocular lens support assembly, wherein the intraocular lens descends toward the eye when the intraocular lens is rotated in a direction in which the spiral is rolled in.