CN211271405U

CN211271405U - Toric intraocular lens

Info

Publication number: CN211271405U
Application number: CN201922117618.7U
Authority: CN
Inventors: 麻健勇; 冯振宇; 曹晶辉
Original assignee: Vision Pro (wuxi) Ltd
Current assignee: Vision Pro (wuxi) Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-18
Anticipated expiration: 2029-11-29

Abstract

The utility model provides an artificial lens with a toric surface, which comprises an optical part and two C-shaped loops, wherein the head ends of the C-shaped loops are connected with the two sides of the optical part, the tail ends of the C-shaped loops are loop feet, and the two C-shaped loops are respectively bent towards opposite directions; the overall diameter of the toroidal surface artificial lens is 13.5mm, and the diameter of the optical surface is 7 mm; at least two sub-supporting legs are arranged at the loop legs of the C-shaped loop. According to the toroidal intraocular lens with the structure, the two C-shaped loops are respectively bent in opposite directions, at least two sub-support legs are arranged at the loop feet, the number of support points is large, the support is stable, the intraocular lens is not easy to rotate and move after being implanted into a human body, and the post-operation position stability is good; the artificial lens with the two loop type curved surfaces is convenient to operate, is not easy to damage during implantation, conveniently eliminates viscoelastic agent after implantation, and can reduce the residue of the viscoelastic agent after operation; the overall length of the toroidal intraocular lens is 13.5mm, and the toroidal intraocular lens can be better matched with the large capsular bag of a patient with high myopia and cataract, and the rotation of the intraocular lens in the capsular bag is reduced.

Description

Toric intraocular lens

Technical Field

The utility model relates to the technical field of intraocular lenses, in particular to an artificial lens with a toric surface.

Background

The artificial lens is a special lens made of artificial synthetic materials and is implanted into a human eye capsular bag to replace a natural lens which becomes turbid due to cataract. Haptics of the intraocular lens are attached to the optic and support the intraocular lens in a stable position within the eye. The haptics serve as support elements for the intraocular lens, the design of which plays a critical role in the positional stability of the intraocular lens.

The artificial lens in the prior art has the defects of single support loop structure, insufficient support force, easy rotation and movement of the artificial lens in a capsular bag and poor postoperative stability.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art that the intraocular lens has a single haptic structure, insufficient supporting force, easy rotation and movement in the capsular bag, and poor stability after operation.

Therefore, the utility model provides a toric intraocular lens, which comprises an optical part and two C-shaped haptics, wherein the head ends of the C-shaped haptics are connected with both sides of the optical part, the tail ends of the C-shaped haptics are haptic feet, and the two C-shaped haptics are respectively bent towards opposite directions; the overall diameter of the toroidal surface artificial lens is 13.5mm, and the diameter of the optical surface is 7 mm; at least two sub-supporting legs are arranged at the loop legs of the C-shaped loop.

Optionally, in the toric intraocular lens described above, the C-shaped haptic leading end is the largest in width.

Optionally, in the above toric intraocular lens, the width of the C-shaped haptics decreases from the head end to the sub-legs.

Optionally, in the toric intraocular lens described above, the optical portion is made of soft, transparent, foldable, hydrophobic acrylate.

Optionally, in the toric intraocular lens described above, the C-shaped haptics are made of foldable hydrophobic acrylate.

Optionally, in the above toric intraocular lens, both sides of the C-shaped haptics near the ends are indented.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a toric intraocular lens, which comprises an optical part and two C-shaped loops, wherein the head ends of the C-shaped loops are connected with the two sides of the optical part, the tail ends of the C-shaped loops are loop feet, and the two C-shaped loops are respectively bent towards opposite directions; the overall diameter of the toroidal surface artificial lens is 13.5mm, and the diameter of the optical surface is 7 mm; at least two sub-supporting legs are arranged at the loop legs of the C-shaped loop.

According to the toroidal intraocular lens with the structure, the two C-shaped loops are respectively bent in opposite directions, at least two sub-support legs are arranged at the loop feet, the number of support points is large, the support is stable, the intraocular lens is not easy to rotate and move after being implanted into a human body, and the post-operation position stability is good.

The artificial lens with the two loop type curved surfaces is convenient to operate, is not easy to damage during implantation, conveniently eliminates viscoelastic agent after implantation, and can reduce the residue of the viscoelastic agent after the implantation.

The overall length of the toroidal intraocular lens is 13.5mm, and the toroidal intraocular lens can be better matched with the large capsular bag of a patient with high myopia and cataract, and the rotation of the intraocular lens in the capsular bag is reduced.

2. The utility model provides a toric intraocular lens, the width of the head end of the C-shaped loop is the largest, so as to ensure the strength of the C-shaped loop; the width of the C-shaped loop is gradually reduced from the head end to the branch leg, so that the C-shaped loop is bent, and the compression force applied outside the intraocular lens is absorbed through the bending deformation of the C-shaped loop, so that the intraocular lens is kept stable, and eccentricity and inclination are prevented.

3. The utility model provides a toroidal intraocular lens, the both sides that are close to the end of C type loop are the cockscomb structure to C type loop gets into behind the sclera tunnel and firmly connects with sclera tunnel wall.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a toric intraocular lens provided in example 1 of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

description of reference numerals:

1-an optic portion; a 2-C type loop; 21-branch of feet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

This embodiment provides a toric intraocular lens, which comprises an optical portion 1 and two C-shaped haptics 2 as shown in fig. 1, wherein the head ends of the C-shaped haptics 2 are connected to both sides of the optical portion 1, the tail ends of the C-shaped haptics 2 are haptic legs, and the two C-shaped haptics 2 are respectively bent in opposite directions; the overall diameter of the toroidal surface artificial lens is 13.5mm, and the diameter of the optical surface is 7 mm; at least two sub-supporting legs 21 are arranged at the loop feet of the C-shaped loop 2.

According to the toroidal intraocular lens with the structure, the two C-shaped loops 2 are respectively bent in opposite directions, at least two sub-support legs 21 are arranged at the loop legs, the number of support points is large, the support is stable, the intraocular lens is not easy to rotate and move after being implanted into a human body, and the post-operation position stability is good; the two-loop type toroidal curved surface artificial lens is convenient to operate when implanted, is not easy to damage the artificial lens when implanted, is convenient to eliminate viscoelastic agent after being implanted, and can reduce the residue of the viscoelastic agent after operation; the overall length of the toroidal intraocular lens is 13.5mm, and the toroidal intraocular lens can be better matched with the large capsular bag of a patient with high myopia and cataract, and the rotation of the intraocular lens in the capsular bag is reduced.

Specifically, as shown in fig. 1, the number of the sub-legs 21 is two, so as to increase the number of the supporting points to make the support more stable. As shown in FIG. 2, the sides of the C-shaped haptics 2 near the ends are indented to facilitate secure attachment of the C-shaped haptics 2 to the scleral tunnel wall after entry into the scleral tunnel.

The width of the head end of the C-shaped loop 2 is the largest, and the width of the head end of the C-shaped loop 2 is gradually reduced from the head end to the sub-supporting leg 21, and the widening design of the head end of the C-shaped loop 2 can increase the supporting property of the intraocular lens in the capsular bag so as to ensure the supporting strength of the C-shaped loop 2; the width of the C-shaped loop 2 is gradually reduced from the head end to the branch foot 21, so that the bending of the C-shaped loop 2 is facilitated, and the compression force applied outside the intraocular lens is absorbed through the bending deformation of the C-shaped loop 2, so that the intraocular lens is kept stable, and eccentricity and inclination are prevented.

The optical part 1 is made of soft transparent foldable hydrophobic acrylate, the C-shaped loop 2 is made of foldable hydrophobic acrylate, the supporting performance of the intraocular lens and the adhesion of the intraocular lens to a posterior capsular sac are improved, and the position stability of the intraocular lens after operation is improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An artificial lens with a toric surface comprises an optical part (1) and two C-shaped haptics (2), wherein the head ends of the C-shaped haptics (2) are connected to the two sides of the optical part (1), the tail ends of the C-shaped haptics (2) are haptic feet, and the two C-shaped haptics (2) are respectively bent towards opposite directions; the overall diameter of the toroidal surface artificial lens is 13.5mm, and the diameter of the optical surface is 7 mm; at least two sub-supporting legs (21) are arranged at the loop legs of the C-shaped loop (2).

2. Toric intraocular lens according to claim 1, characterized in that the width of the head end of the C-shaped haptics (2) is largest.

3. Toric intraocular lens according to claim 2, characterized in that the width of the C-shaped haptics (2) tapers from the head end to the partial legs (21).

4. Toric intraocular lens according to any one of claims 1-3, characterized in that the optic (1) is made of soft transparent foldable hydrophobic acrylate.

5. Toric intraocular lens according to any one of claims 1-3, characterized in that the C-shaped haptics (2) are made of foldable hydrophobic acrylate.

6. Toric intraocular lens according to any one of claims 1-3, characterized in that the sides of the C-shaped haptics (2) near the ends are serrated.