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Variable multi-focus artificial lens

An intraocular lens, multi-focus technology, applied in the field of medical supplies, can solve the problems of limited moving distance, thick lens, low refractive index, etc.

Inactive Publication Date: 2017-05-17
WUXI VISION PRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low refractive index of the silicone material, the resulting lens is thicker and the distance the lens moves in the eye's capsular bag is limited, making it possible to focus with limited changes in optical power

Method used

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  • Variable multi-focus artificial lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] refer to Figure 1-7 , the variable trifocal intraocular lens is an assembled intraocular lens, the trifocals are 13.5D, 20D, and 23.5D respectively, and its preparation method is as follows:

[0055] (1) First make an intraocular lens disc (13mm in diameter) containing a trifocal optical surface;

[0056] (2) Carve the disc made in step (1) into a single-piece lens, then cut it into an optical body and two haptics, and make the silicone connecting piece through compression molding;

[0057] (3) Coat the convex grooves of the two silicone connectors with medical glue and fill them at both ends of the optical body. The convex grooves at both ends of the optical body are inserted into the grooves of the silicone connectors. The groove coincides with the convex groove of the silicone connector, and then the convex groove at the other end of the two silicone connectors is filled in the groove of the two haptics, so that the overall assembly of the three parts is completed ...

Embodiment 2

[0063] refer to Figure 1-7 , the variable trifocal intraocular lens is an assembled intraocular lens, the trifocals are 10D, 20D, and 30D respectively, and its preparation method is as follows:

[0064] (1) First make an intraocular lens disc (13 mm in diameter) containing a trifocal optical surface,

[0065] (2) Carve the wafer made in step (1) into a one-piece lens through mechanical carving, then cut it into an optical body and two haptics, and make the silicone connector through compression molding;

[0066] (3) Coat the convex grooves of the two silicone connectors with medical strong glue, and fill them at both ends of the optical body. The groove coincides with the convex groove of the silicone connector, and then the convex groove at the other end of the two silicone connectors is filled in the groove of the two haptics, so that the overall assembly of the three parts is completed and finally implanted in the human eye in pouch;

[0067] The material of the optical...

Embodiment 3

[0072] refer to Figure 8 , the variable trifocal intraocular lens is an assembled intraocular lens, the trifocals are 10D, 20D, and 30D respectively, and its preparation method is as follows:

[0073] (1) First make an intraocular lens disc (13 mm in diameter) containing a multi-focus optical surface;

[0074] (2) Carve the wafer made in step (1) into a one-piece lens through mechanical carving, then cut it into an optical body and two haptics, and make the silicone connector through compression molding;

[0075] (3) Coat the convex grooves at both ends of the optical body and the convex grooves of the two haptics with medical glue, and then insert them into the grooves at both ends of the silicone connector, so that the overall assembly of the three parts is completed, and finally implanted into the human body. in the pouch inside the eye;

[0076] The material of the optical body is hydrophobic polyacrylate, the diameter of the effective optical zone of the optical body i...

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Abstract

The invention discloses a variable multi-focus artificial lens. The artificial lens comprises an optical body (1), loops (2) and silica gel connecting pieces (3), wherein the silica gel connecting pieces (3) are located between the optical body (1) and the loops (2), and the optical body (1) and the loops (2) are combined together through concave and convex grooves in a spliced manner. Grooves (4) are formed in two ends of the optical body (1), and grooves (5) are formed in the ends, combining with the optical body (1), of the loops (2). The convex grooves are formed in two ends of each of the silica gel connecting piece (3) respectively in the width direction, including the convex groove (6) and the convex groove (7). The optical body is a multi-focus optical zone, and focal power change of the multi-focus artificial lens can be effectively increased through back-and-forth movement in the multi-focus optical zone.

Description

technical field [0001] The invention relates to the technical field of medical supplies, in particular to a variable multifocal intraocular lens. Background technique [0002] The natural lens in the human eye is a colorless, transparent and very soft lens when a newborn baby is born. With the increase of age, the change of external conditions, such as the influence of ultraviolet radiation and other factors, the natural lens will change. It becomes harder and harder and turns into a colored lens. When people live to over 50 to 60 years old, about 30% of people's intraocular lens will become brownish yellow and cloudy, which not only loses the adjustable When this happens, the natural lens (the cataract lens) will have to be replaced with an artificial lens to restore vision to the cataract patient's eye. [0003] A typical intraocular lens consists of an optical lens that focuses light onto the optic nerve to enable it to see and an arm that supports its optic zone so that...

Claims

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Application Information

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IPC IPC(8): A61F2/16
CPCA61F2/1618A61F2210/00A61F2220/0025A61F2/1629A61F2002/1689A61F2002/1682A61F2002/1681A61F2230/0019A61F2250/0091
Inventor 廖秀高冯振宇杨勤
Owner WUXI VISION PRO
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