Anterior capsule opening auxiliary fixed artificial lens

A technology of intraocular lens and capsular opening, applied in the direction of intraocular lens, eye implant, etc., can solve the problems such as difficult to achieve effect, fluid retention, and failure to achieve, so as to reduce abnormal negative astigmatism and prevent block complications , to avoid the effect of complete airtightness

Pending Publication Date: 2018-10-19
姚涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult for the lens of this design to realize its function in actual use, because it is often difficult to ensure that the anterior capsule opening is a regular 5.5 mm in size and a perfect circle in the center, and the groove around the optical part cannot be grasped. anterior sac
However, the femtosecond laser-assisted technology that can achieve precise anterior capsule preparation cannot be popularized clinically because it is too expensive.
In addition, after the optic part of the intraocular lens is clamped at the capsular bag mouth, the capsular bag remains airtight, and fluid retention in the capsular bag is prone to complications of "capsular bag block syndrome" (the capsular bag port is completely sealed, fluid retention, and the lens optic part moves forward. , causing a series of problems such as myopia and high intraocular pressure)

Method used

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  • Anterior capsule opening auxiliary fixed artificial lens
  • Anterior capsule opening auxiliary fixed artificial lens
  • Anterior capsule opening auxiliary fixed artificial lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 An anterior capsular ostium assisted fixation intraocular lens

[0035] like Figure 1-3 An anterior capsular auxiliary fixed intraocular lens is shown, which is a one-piece intraocular lens. The intraocular lens has an optical part 1 that acts as a diopter lens in the center and two J-shaped bands symmetrically arranged on both sides of the optical part 1. Support loop 2. An auxiliary fixation mechanism is provided at the root of each support haptic (that is, the connection between the support haptic 2 and the optical part 1) to assist in fixing the intraocular lens. The auxiliary fixation mechanism includes two bayonets 3, and the bayonets 3 are The elastic petal-style bayonet is used to fix the lens capsular bag. like figure 2 and 3 The bayonet 3 shown is set at the root of the supporting haptics on the front of the intraocular lens, and the opening direction of the bayonet 3 faces the outside of the optical part 1, which is the side away from the opti...

Embodiment 2

[0041] Example 2 An anterior capsular ostium assisted fixation intraocular lens

[0042] like Figure 4-5 An anterior capsule assisted fixation type IOL is shown, which is a three-piece IOL with a circular optical part 1 and two C-shaped strips symmetrically arranged around the optical part 1 for fixing the IOL. The supporting haptics 2 are equipped with an auxiliary fixing mechanism at the root of each supporting haptic, which is used to assist in fixing the intraocular lens, and the root of the supporting haptics is the connection point between the supporting haptics 2 and the optical part 1 . like Figure 4-5 The shown auxiliary fixing mechanism includes two bayonet sockets 3 . The bayonet 3 is an elastic U-shaped bayonet. The two bayonets 3 are arranged stepwise away from the optical part 1 one by one on the root of the supporting haptics on the front of the intraocular lens. The opening direction of the bayonet 3 faces the outside of the optical part 1. , the outer sid...

Embodiment 3

[0043] Example 3 An anterior capsular ostium assisted fixation intraocular lens

[0044] like Figure 6-7 An anterior capsule assisted fixation type IOL is shown, which is a three-piece IOL with a circular optical part 1 and two C-shaped strips symmetrically arranged around the optical part 1 for fixing the IOL. The supporting haptics 2 are equipped with an auxiliary fixing mechanism at the root of each supporting haptic, which is used to assist in fixing the intraocular lens, and the root of the supporting haptics is the connection point between the supporting haptics 2 and the optical part 1 . like Figure 6-7 The auxiliary fixing mechanism shown includes three bayonets 3 . The bayonet 3 is an elastic U-shaped bayonet, and the three bayonets 3 are arranged stepwise away from the optical part 1 one by one on the root of the supporting haptics on the front of the intraocular lens. The opening direction of the bayonet faces the outside of the optical part 1. The outer side o...

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PUM

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Abstract

The invention discloses an anterior capsule opening auxiliary fixed artificial lens which comprises a circular optical portion and two or more C-shaped or J-shaped strip or banded supporting loops, wherein the supporting loops are used for fixing the artificial lens and arranged on the periphery of the optical portion. Auxiliary fixing mechanisms are arranged at roots of the supporting loops and used for assisting in fixing the artificial lens, and the roots of the supporting loops are joints of the supporting loops and the optical portion. According to the anterior capsule opening auxiliary fixed artificial lens, stability of the optical portion is more effectively ensured, and the design structure is applicable to three-piece or one-piece artificial lenses, lenses with or without included angles between loops or optical areas, single-focus or multi-focus lenses, light-scattering lenses and various artificial lenses made of different materials.

Description

technical field [0001] The invention relates to the technical field of intraocular lenses, in particular to an anterior capsular opening assisted fixation type intraocular lens. Background technique [0002] Cataract is the most common blinding eye disease in the world, and phacoemulsification combined with intraocular lens implantation is currently the main treatment for cataract. The operation needs to remove a part of about 5.5mm in the center of the anterior capsule of the lens (by manipulative ablation or femtosecond laser-assisted resection to prepare a circular anterior capsule opening with a diameter of 5.5mm), phacoemulsification completely removes the nuclei of the opaque lens and sucks out the lens cortex , while retaining the complete posterior capsule, and then implant the intraocular lens into the lens capsular bag and ensure that the position is centered and stable. [0003] At present, the conventionally designed intraocular lens structure includes: the opti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCA61F2/1613
Inventor 姚涛赵宇丹
Owner 姚涛
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