阅读说明：本技术 包括巩膜接合部的人工晶体 (Intraocular lens including a scleral junction ) 是由 埃利·阿哈啰尼 于 2018-08-14 设计创作，主要内容包括：一种人工晶体包括一透镜部及一支撑脚部,所述支撑脚部包括一巩膜接合部,所述巩膜接合部包括一细长的巩膜切开术横置部及一巩膜接合固定部,所述巩膜接合固定部位于沿着所述细长的巩膜切开术横置部的一长度上的一中间位置,以避免所述巩膜切开术横置部从一巩膜上脱落。(An intraocular lens includes a lens portion and a support foot portion, the support foot portion including a scleral junction, the scleral junction including an elongated sclerotomy cross-section and a scleral junction fixation portion, the scleral junction fixation portion located at an intermediate position along a length of the elongated sclerotomy cross-section to prevent the sclerotomy cross-section from falling off a sclera.)

1. An intraocular lens, characterized by: the intraocular lens comprises

A lens portion; and

a support foot, the support foot including a scleral junction, the scleral junction including an elongated sclerotomy cross-section and a scleral junction fixation portion, the scleral junction fixation portion located at an intermediate position along a length of the elongated sclerotomy cross-section to prevent the sclerotomy cross-section from falling off a sclera.

2. The intraocular lens of claim 1 wherein: the scleral engagement fixation portion is configured to be bendable in a first direction along a central axis of the scleral engagement fixation portion, but inflexible in a second direction along the central axis opposite the first direction.

3. The intraocular lens of claim 1 or 2 wherein: the scleral engagement fixation portion is configured to: during the period of implanting the sclera joint fixing part through a scleral incision, a relative narrow area is set, and the relative narrow area is perpendicular to a central axis of the sclera joint fixing part;

and means for setting a relatively wide area perpendicular to the central axis for holding the scleral engagement fixation portion against penetration back through the sclerotomy, thereby maintaining the position of the intraocular lens in the eye.

4. Intraocular lens according to any of claims 1 to 3, characterized in that: the scleral engagement fixture is in the form of a button.

5. The intraocular lens of claim 4 wherein: the button is a multi-split petal-shaped button.

6. The intraocular lens of claim 1 or 3 wherein: the scleral engagement anchoring portion is in the form of a selectively bendable T-shaped member.

7. The intraocular lens of claim 6 wherein: the T-shaped component includes a flexible base.

8. The intraocular lens of claim 7 wherein: the flexible base is made of a suture material.

9. Intraocular lens according to any of claims 1 to 3, characterized in that: the lens part and the supporting foot part are integrally formed.

10. Intraocular lens according to any of claims 1 to 3, characterized in that: the elongated sclerotomy lateral portion includes a threading portion extending beyond the scleral junction fixation portion, the threading portion adapted to be disengaged from the scleral junction fixation portion and discarded after implantation of the intraocular lens.

Technical Field

The present invention relates to intraocular lenses (intraocular lenses).

Background

Various types of intraocular lenses are known in the art.

Disclosure of Invention

The invention aims to provide an improved artificial lens.

There is thus provided in accordance with a preferred embodiment of the present invention an intraocular lens including: a lens portion; and a support foot (a handover port), the support foot including a scleral engagement portion (scleral engagement portion), the scleral engagement portion including an elongated scleral incision cross portion (elongated scleral incision cross portion) and a scleral engagement fixation portion (scleral engagement fixation portion), the scleral engagement fixation portion being positioned at an intermediate location along a length of the elongated scleral incision cross portion to prevent the scleral incision cross portion from falling off a sclera.

Preferably, the scleral engagement fixation portion is configured to be bendable in a first direction along a central axis of the scleral engagement fixation portion, but inflexible in a second direction along the central axis opposite the first direction.

According to a preferred embodiment of the present invention, the scleral engagement fixation portion is configured to: during the period of implanting the scleral engagement fixing portion through a scleral incision (scleratomy), setting a relatively narrow region (focprint) perpendicular to a central axis of the scleral engagement fixing portion; and a means for setting a relatively wide area perpendicular to the central axis and for holding the scleral engagement fixation portion against penetration back through the sclerotomy, thereby maintaining the position of the intraocular lens in the eye.

Preferably, the scleral engagement fixation portion is in the form of a button. In addition, the button is a multi-lobed (multi-lobed) button.

In accordance with a preferred embodiment of the present invention, the scleral engagement anchoring portion is in the form of a selectively bendable T-shaped member. Preferably, the T-shaped member includes a flexible base. According to a preferred embodiment of the invention, said flexible base is made of a stitched material.

According to a preferred embodiment of the present invention, the lens portion and the supporting leg portion are integrally formed.

Preferably, the elongated sclerotomy cross member includes a threading portion extending beyond the scleral engagement fixation portion, the threading portion adapted to be disengaged from the scleral engagement fixation portion and discarded after implantation of the intraocular lens.

Drawings

The present invention will become more fully understood from the detailed description given herein below when taken in conjunction with the accompanying drawings, wherein:

FIGS. 1A, 1B and 1C are first, second and third different simplified perspective views of an intraocular lens constructed and operative in accordance with a preferred embodiment of the present invention;

FIGS. 1D and 1E are simplified side and simplified top views of the intraocular lens described in relation to FIGS. 1A, 1B and 1C;

FIGS. 2A, 2B and 2C are three simplified views of the button portion of the intraocular lens depicted in FIGS. 1A-1E;

FIGS. 3A and 3B are simplified views of the intraocular lens of FIGS. 1A-2C illustrating the respective anterior and posterior implantation orientations;

FIGS. 4A, 4B and 4C are simplified views of three intermediate stages of implanting the intraocular lens shown in FIGS. 1A-3B along lines IV-IV in FIG. 3B;

FIG. 5 is a simplified illustration of the construction and operation of an intraocular lens according to another preferred embodiment of the present invention;

FIG. 6 is a simplified illustration of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention;

FIG. 7 is a simplified illustration of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention;

FIGS. 8A, 8B and 8C are first, second and third different simplified views of an intraocular lens according to another preferred embodiment of the present invention;

FIGS. 8D and 8E are diagrams of simplified side and top views of the intraocular lens of FIGS. 8A, 8B and 8C;

FIGS. 9A and 9B are simplified views of the T-shaped component of the intraocular lens of FIGS. 8A-8E;

FIGS. 10A and 10B are simplified views of the intraocular lens of FIGS. 8A-9B in respective operational orientations of an anterior implant and a posterior implant;

FIGS. 11A, 11B, 11C and 11D are simplified views of four intermediate stages of implantation of the intraocular lens shown in FIGS. 8A to 10B along lines XI to XI in FIG. 10B;

FIG. 12 is a simplified illustration of the construction and operation of the intraocular lens according to another preferred embodiment of the present invention;

FIG. 13 is a simplified pictorial illustration of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention; and

fig. 14 is a simplified illustration of the construction and manner of operation of the intraocular lens according to yet another preferred embodiment of the present invention.

Detailed Description

Reference is now made to fig. 1A, 1B and 1C, which show first, second and third different simplified perspective views of the construction and operation of an intraocular lens according to a preferred embodiment of the present invention, and fig. 1D and 1E are simplified side and top views of the intraocular lens relative to that shown in fig. 1A, 1B and 1C.

As shown in FIGS. 1A-1E, which provide a construction and operation of the intraocular lens 100 according to the preferred embodiment of the present invention, the intraocular lens 100 includes a lens portion 102 and a support foot portion 104. The support foot 104 preferably includes a first side support foot 106 and a second side support foot 108 extending outwardly from the lens portion 102. A scleral junction 110 extends outwardly along an intermediate location of each of the first leg 106 and the second leg 108. Each scleral engagement portion 110 preferably comprises: a sclerotomy cross-member 112, the scleral junction 110 preferably being in the form of an elongated flexible wire made of suture material; and a scleral engagement fixation portion 114 located at an intermediate position along the scleral incision cross-section 112 to prevent the scleral incision cross-section 112 from falling off a sclera.

In this embodiment, the scleral engagement fixation portion 114 is generally in the form of a button, and the scleral engagement fixation portion 114 is configured to be bendable in a first direction along a base portion 116 of a central axis 121 of the scleral engagement fixation portion 114 when engaged with the sclera, but inflexible in a direction opposite the first direction when used for scleral engagement fixation, as will be described in further detail below. Therefore, the scleral engagement fixing portion 114 can be used to define a relatively narrow area perpendicular to a central axis 121 of the scleral engagement fixing portion 114 during the implantation of the scleral engagement fixing portion 114 by a scleral incision; and for setting a relatively wide area perpendicular to the central axis 121 and for holding the scleral engagement fixation portion 114 against penetration back through the sclerotomy, thereby maintaining the position of the intraocular lens 100 in the eye.

Preferably, the sclerotomy cross member 112 includes a scleral threading portion 122, the scleral threading portion 122 extending outwardly from each scleral engagement fixation portion 114, the scleral threading portion 122 configured for implantation and subsequent removal and disposal from the scleral engagement fixation portion 114.

It will be appreciated that all of the portions of the intraocular lens 100 described above are integrally formed. Alternatively, the various portions of the intraocular lens 100 may be formed separately and joined by conventional welding techniques or by the use of suitable adhesives.

Referring to FIGS. 2A, 2B and 2C, three simplified views of the scleral engagement fixing portion of the intraocular lens of FIGS. 1A-1E are shown; FIGS. 3A and 3B are simplified views of the respective anterior and posterior implantation orientations of the intraocular lens described in FIGS. 1A-2C; fig. 4A, 4B and 4C are simplified views of an intermediate process of implanting three of the intraocular lenses of fig. 1A-3B.

As shown particularly in fig. 2A-2C, the scleral engagement fixture 114 is a button preferably exhibiting a multi-split flap shape including two or more split flaps 123, the split flaps 123 being configured to: as shown in FIG. 4A, during implantation, is bendable in a first direction (as indicated by arrow 124) along a central axis 121 of the SCHESA fixation section 114 above the SCHESA cross section 112; however, as shown in fig. 3B and 4B, it is inflexible in a second direction opposite the first direction along axis 121 above scleral threading portion 122, thereby holding the intraocular lens in place.

As shown in FIG. 4C, after the intraocular lens 100 is implanted, the scleral threading portion 122 extending outwardly from each of the SCHEL fixation portions 114 is cut away from the SCHEL fixation portions 114 and discarded.

Referring now to fig. 5, there is shown a simplified illustration of the construction and operation of an intraocular lens according to another preferred embodiment of the present invention, in which a hinged side support foot 136 and 138 is used.

Referring now to FIG. 6, there is shown a simplified illustration of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention, in which a solid (solid) side support foot portions 146 and 148 are employed.

Referring now to fig. 7, a simplified diagram of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention is shown, wherein an elongated, thread-like side support foot 156 and 158 is employed, and the elongated, thread-like side support foot 156 and 158 may be connected to the scleral junction 110 by a coupler 160.

Referring to fig. 8A, 8B and 8C, there are shown first, second and third different simplified perspective views of the construction and operation of an intraocular lens according to another preferred embodiment of the present invention; fig. 8D and 8E are simplified side and top views, respectively, of the construction and manner of operation of the intraocular lens described in fig. 8A-8C.

Referring to fig. 8A-8E, which provide the construction and operation of an intraocular lens 200 according to a preferred embodiment of the present invention, the intraocular lens 200 includes a lens portion 202 and a support foot portion 204. The support foot 204 preferably includes a first support foot 206 and a second support foot 208 extending outwardly from the lens portion 202. A scleral junction 210 extends outwardly from each of the side support feet 206 and 208. Each scleral engagement portion 210 preferably includes a scleral incision cross portion 212, the scleral incision cross portion 212 preferably being in the form of an elongated flexible wire, the scleral incision cross portion 212 having a scleral engagement fixation portion 220 located at an intermediate position along the scleral incision cross portion 212 to prevent the scleral incision cross portion 212 from falling off a sclera.

In this embodiment, the scleral engagement fixation portion 220 is generally in the form of a T-shaped element 222, the T-shaped element 222 being configured to be selectively bendable when the intraocular lens 200 is implanted and to provide scleral engagement fixation, as will be described further below.

In the illustrated embodiment, a flexible base portion 224 of the T-shaped member extends along a central axis 226 and defines a portion of the sclerotomy cross-section 212. In a preferred embodiment, the flexible base 224 is made of a soft, flexible material, such as: and (4) sewing the material. A free end 228 of each base 224 is connected to a corresponding one of the side support feet 206 and 208. It is understood that the SCHEC anchor portion 220 is used to define a relatively narrow region perpendicular to a central axis 224 of the SCHEC anchor portion during the implantation of the SCHEC anchor portion 220 by a scleral incision; and for defining a relatively wide area perpendicular to the central axis 224 and for holding the scleral engaging fixation 220 against penetration back through the sclerotomy, thereby maintaining the position of the intraocular lens 200 in the eye. Preferably, a transscleral portion 230 defines another portion of the sclerotomy cross-section 212 and extends outward from one side of each tee-shaped element 222. Preferably, the scleral perforation 230 is used to thread the sclerotomy cross member 212 through the sclera, and is then cut and discarded at a narrowed and weakened location 232 of the scleral engagement anchoring portion 220 where the scleral perforation 230 is attached to the T-shaped member 222.

It will be appreciated that all of the portions of the intraocular lens 200 described above are integrally formed. Alternatively, the various portions of the intraocular lens 200 may be formed separately and joined by conventional welding techniques or by the use of suitable adhesives.

Referring to fig. 9A and 9B, simplified views of the T-shaped element 222 of the intraocular lens of fig. 8A-8E are shown; FIGS. 10A and 10B are simplified views of the intraocular lens of FIGS. 8A-9B in respective anterior and posterior implantation orientations; fig. 11A, 11B, 11C and 11D are simplified views of the intraocular lens of fig. 8A-10B at four intermediate stages of implantation.

As shown particularly in fig. 9A and 9B, the scleral engagement fixation portion 220 is preferably formed as a pair of coaxial but opposing arms 233 and 234, the arms in opposing coaxial relation being generally T-shaped member 222, the T-shaped member 222 being configured to: as shown in fig. 10A to 11D, during implantation of the intraocular lens 200, may be selectively flexed from the configuration of fig. 9A to the configuration of fig. 9B; and as shown in fig. 10B and 11D, the position of the intraocular lens 200 is maintained after the intraocular lens 200 is implanted.

Referring now to FIG. 12, there is shown a simplified illustration of the construction and operation of an intraocular lens according to another preferred embodiment of the present invention, in which hinged side support legs 240 and 242 are employed.

Referring now to fig. 13, there is shown a simplified illustration of the construction and operation of an intraocular lens according to yet another preferred embodiment of the present invention, in which a substantially solid side support legs 246 and 248 are employed.

Referring now to fig. 14, there is shown a simplified illustration of the construction and operation of the intraocular lens in accordance with yet another preferred embodiment of the present invention, wherein an elongated, e.g., linear, side support foot 256 and 258 is employed, the elongated, e.g., linear, side support foot 256 and 258 being each insertable into a hollow coupler 260, the coupler 260 being connected to a base 226 of the T-shaped member.

It will be appreciated by persons skilled in the art that the present invention is not limited to what has been particularly shown and described hereinabove. Rather, the scope of the present invention includes both combinations and subcombinations of the various elements described hereinabove, as well as modifications and variations thereof which would occur to persons skilled in the art.