Accommodative multifocal intraocular lens

Abstract

The present invention is an accommodative multifocal intraocular lens including an optical body, a haptic and a silicone connecting member, wherein the silicone connecting member is located between the optical body and the haptic, and combines the optical body and the haptic in an inserted manner through concave and convex grooves; two ends of the optical body are provided with concave grooves; an end, joined to the optical body, of the haptic is provided with a concave groove; two ends, along the width direction, of the silicone connecting member are provided with convex grooves, respectively, that is, a convex groove and a convex groove, respectively. The optical body in the present invention is a multi-focal optical zone, and the back-and-forth movement of the optical zone can effectively increase the change of the focal power of the multifocal lens.

Claims

1. An accommodative multifocal intraocular lens comprising: an optical body, a haptic, and a silicone connecting member; wherein the silicone connecting member is located between the optical body and the haptic, and the silicone connecting member combines the optical body and the haptic in an inserted manner through concave and convex grooves; two ends of the optical body are both provided with a first concave groove; an end, joined to the optical body, of the haptic is provided with a second concave groove; an optical zone of the optical body is an optical zone having two focal points, three focal points, an infinite zoom region, or regional multifocal points; and two ends, along a width direction, of the silicone connecting member are both provided with the convex groove, respectively, the convex groove include a first convex groove and a second convex groove.

2. The accommodative multifocal intraocular lens according to claim 1, wherein the concave and convex grooves are rectangular or dovetail-shaped.

3. The accommodative multifocal intraocular lens according to claim 1, wherein a diameter of the intraocular lens ranges from 11.5 mm to 13.5 mm.

4. The accommodative multifocal intraocular lens according to claim 1, wherein the optical body is made of an optically transparent hydrophobic polyacrylic ester material having a refractive index ranges from 1.48 to 1.56; and a diameter of an effective optical zone of the optical body ranges from 5.5 mm to 6.5 mm.

5. The accommodative multifocal intraocular lens according to claim 1, wherein the haptic is made of a hydrophobic polyacrylic ester material or a reinforced silicone material, and a thickness of the haptic ranges from 0.18 mm to 0.65 mm; and a thickness of a thickest portion of the silicone connecting member ranges from 0.18 mm to 0.65 mm.

6. The accommodative multifocal intraocular lens according to claim 1, wherein, a depth of the first concave groove and the second concave groove ranges from 0.1 mm to 0.15 mm; a height of the first convex groove and the second convex groove ranges from 0.1 mm to 0.15 mm; and the depth of the first concave groove and the second groove is consistent with the height of the first convex groove and the second convex groove.

7. The accommodative multifocal intraocular lens according to claim 1, wherein a width of the first convex groove and the second convex groove is consistent with a width of the first concave groove and the second concave groove.

8. An accommodative multifocal intraocular lens, comprising: an optical body, a haptic, and a silicone connecting member; wherein the silicone connecting member is located between the optical body and the haptic, and combines the optical body and the haptic in an inserted manner through concave and convex grooves; third convex grooves are provided on a cross section along a thickness direction, at two ends of the optical body; a fourth convex groove is provided on a cross section along a thickness direction at an end, joined to the optical body, of the haptic; and third concave grooves are provided on a cross section along a thickness direction, at two ends, along a width direction of the silicone connecting member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a schematic structural diagram according to the present invention;

[0024] FIG. 2 is a schematic structural diagram of an optical body according to the present invention;

[0025] FIG. 3 is a perspective schematic structural diagram of an optical body according to the present invention;

[0026] FIG. 4 is a schematic structural diagram of a haptic according to the present invention;

[0027] FIG. 5 is a perspective schematic structural diagram of a haptic according to the present invention;

[0028] FIG. 6 is a schematic structural diagram of a silicone connecting member according to the present invention;

[0029] FIG. 7 is a perspective schematic structural diagram of a silicone connecting member according to the present invention; and

[0030] FIG. 8 is a schematic structural diagram according to the present invention.

[0031] In the figures: 1. optical body, 2. haptic, 3. silicone connecting member, 4. concave groove, 5. concave groove, 6. convex groove, 7. convex groove, 8. convex groove, 9. convex groove, 10. concave groove.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

[0033] As shown in FIG. 1 to FIG. 7, an accommodative multifocal intraocular lens, including an optical body 1, a haptic 2 and a silicone connecting member 3, wherein the silicone connecting member 3 is located between the optical body 1 and the haptic 2, and combines the optical body 1 and the haptic 2 in an inserted manner through concave and convex grooves; two ends of the optical body 1 are provided with concave grooves 4; an end, joined to the optical body 1, of the haptic 2 is provided with a concave groove 5; the optical zone of the optical body 1 is an optical zone having two focal points, three focal points, an infinite zoom region or regional multifocal points;

two ends, along the width direction, of the silicone connecting member 3 are provided with convex grooves, respectively, that is, a convex groove 6 and a convex groove 7, respectively.

[0034] The concave and convex grooves are rectangular or dovetail-shaped.

[0035] The intraocular lens is 11.5 to 13.5 mm in diameter.

[0036] The optical body 1 is made of an optically transparent hydrophobic polyacrylic ester material having a refractive index of 1.48 to 1.56; the effective optical zone of the optical body 1 is 5.5 to 6.5 mm in diameter.

[0037] The haptic 2 is made of hydrophobic polyacrylic ester material or reinforced silicone material, and the haptic 2 is 0.18 to 0.65 mm in thickness; the thickest portion of the silicone connecting member 3 is 0.18 to 0.65 mm in thickness.

[0038] The concave groove 4 and the concave groove 5 are both 0.1 to 0.15 mm in depth; the convex groove 6 and the convex groove 7 are both 0.1 to 0.15 mm in height; the depths of the concave groove 4 and the groove 5 are consistent with the heights of the convex groove 6 and the convex groove 7.

[0039] The widths of the convex groove 6 and the convex groove 7 are consistent with the widths of the concave groove 4 and the concave groove 5.

[0040] When in use, convex and concave grooves of two silicone connecting members 3 are applied with medical strong glue first, loaded on two ends of the optical body 1, and the convex grooves at two ends of the optical body 1 are inserted into the concave grooves of the silicone connecting member 3, and correspondingly, concave grooves at two ends of the optical body 1 coincide with the convex grooves of the silicone connecting member 3, and then the convex grooves at the other end of the two silicone connecting members 3 are loaded in the concave grooves of the two haptics 2, as such, the overall assembly of the three components is completed, and finally implanted into the capsular bag of the human eye.

[0041] As shown in FIG. 8, an accommodative multifocal intraocular lens, including an optical body 1, a haptic 2 and a silicone connecting member 3, wherein the silicone connecting member 3 is located between the optical body 1 and the haptic 2, and combines the optical body 1 and the haptic 2 in an inserted manner through concave and convex grooves;

convex grooves 8 are provided on a cross section along the thickness direction, at two ends of the optical body 1; a convex groove 9 is provided on a cross section along the thickness direction at an end, joined to the optical body 1, of the haptic 2; and
concave grooves 10 are provided on a cross section along the thickness direction, at two ends, along the width direction of the silicone connecting member 3.

[0042] When in use, convex grooves 8 and 9 are applied with medical strong glue first, and then inserted into the concave grooves 10 on a cross section along the thickness direction, at two ends, along the width direction of the silicone connecting member 3, respectively, as such, the overall assembly of the three components is completed, and finally implanted into the capsular bag of the human eye.

Embodiment 1

[0043] Referring to FIG. 1 to FIG. 7, an accommodative trifocal intraocular lens is an assembled intraocular lens with three focal points of 13.5 D, 20.0 D, 23.5 D, respectively, and the preparation method thereof is:

(1) an intraocular lens disk (13 mm in diameter) containing a trifocal optical surface can first be made;
(2) the disk made in step (1) is mechanically engraved into a one-piece lens, and then cut into an optical body and two haptics, and silicone connecting member is made by laminate molding;
(3) convex and concave grooves of two silicone connecting members are applied with medical strong glue first, loaded on two ends of the optical body, and the convex grooves at two ends of the optical body are inserted into the concave grooves of the silicone connecting member, and correspondingly, concave grooves at two ends of the optical body coincide with the convex grooves of the silicone connecting member, and then the convex grooves at the other end of the two silicone connecting members are loaded in the concave grooves of the two haptics, as such, the overall assembly of the three components is completed, and finally implanted into the capsular bag of the human eye;
the optical body is made of a hydrophobic polyacrylic ester material and the effective optical zone of the optical body is 5.5 mm in diameter and 0.60.2 mm in thickness;
the haptic is made of hydrophobic polyacrylic ester material and the haptic is 0.30.1 mm in thickness;
the overall width of the silicone connecting member is 1.5 mm and the thickness in the center is 0.3 mm; the convex groove in the middle of the silicone connecting member is 0.3 mm in width, convex grooves at two ends are both 0.4 mm in width, and concave grooves in the middle are both 0.2 mm in width.

[0044] When the contraction or relaxation of the ciliary muscle, the back-and-forth moving distance is 1.5 mm, and the zoom regions of the intraocular lens in the present invention are in ranges of 13.5 D-15.74 D, 20.0 D-22.24 D and 23.5 D-25.74 D.

Embodiment 2

[0045] Referring to FIG. 1 to FIG. 7, an accommodative trifocal intraocular lens is an assembled intraocular lens with three focal points of 10.0 D, 20.0 D, 30.0 D, respectively, and the preparation method thereof is:

(1) an intraocular lens disk (13 mm in diameter) containing a trifocal optical surface can first be made;
(2) the disk made in step (1) is mechanically engraved into a one-piece lens, and then cut into an optical body and two haptics, and silicone connecting member is made by laminate molding;
(3) convex and concave grooves of two silicone connecting members are applied with medical strong glue first, loaded on two ends of the optical body, and the convex grooves at two ends of the optical body are inserted into the concave grooves of the silicone connecting member, and correspondingly, concave grooves at two ends of the optical body coincide with the convex grooves of the silicone connecting member, and then the convex grooves at the other end of the two silicone connecting members are loaded in the concave grooves of the two haptics, as such, the overall assembly of the three components is completed, and finally implanted into the capsular bag of the human eye;
the optical body is made of a hydrophobic polyacrylic ester material and the effective optical zone of the optical body is 6 mm in diameter and 0.60.2 mm in thickness;
the haptic is made of hydrophobic polyacrylic ester material and the haptic is 0.30.1 mm in thickness;
the overall width of the silicone connecting member is 1.2 mm and the thickness in the center is 0.3 mm; the convex groove in the middle of the silicone connecting member is 0.1 mm in width, convex grooves at two ends are both 0.4 mm in width, and concave grooves in the middle are both 0.15 mm in width.

[0046] When the contraction or relaxation of the ciliary muscle, the back-and-forth moving distance is 1.25 mm, and the zoom regions of the intraocular lens are in ranges of 10.0 D-11.81 D, 20.0 D-21.81 D and 30.0 D-31.81 D.

Embodiment 3

[0047] Referring to FIG. 8, an accommodative trifocal intraocular lens is an assembled intraocular lens with three focal points of 10.0 D, 20.0 D, 30.0 D, respectively, and the preparation method thereof is:

(1) an intraocular lens disk (13 mm in diameter) containing a multifocal optical surface can first be made;
(2) the disk made in step (1) is mechanically engraved into a one-piece lens, and then cut into an optical body and two haptics, and silicone connecting member is made by laminate molding;
(3) convex grooves at two ends of the optical body and convex grooves of the two haptics are applied with medical glue, and then inserted into the concave grooves at two ends of the silicone connecting member, as such, the overall assembly of the three components is completed, and finally implanted into the capsular bag of the human eye;
the optical body is made of a hydrophobic polyacrylic ester material and the effective optical zone of the optical body is 6 mm in diameter and 0.60.2 mm in thickness;
the haptic is made of hydrophobic polyacrylic ester material and the haptic is 0.30.1 mm in thickness;
the overall width of the silicone connecting member is 0.4 mm and the thickness in the center is 0.2 mm and the width in the center is 0.1 mm; concave grooves are provided at two ends of silicone connecting member, and are both 0.15 mm in width and 0.1 mm in thickness, bosses are provided at two ends of the concave groove, so as to achieve insertion and assembly of the body and the haptic.

[0048] When the contraction or relaxation of the ciliary muscle, the back-and-forth moving distance is 1.25 mm, and the zoom regions of the intraocular lens are in ranges of 10.0 D-11.81 D, 20.0 D-21.81 D and 30.0 D-31.81 D.