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Artificial iris using fastening wires for fixing in eye

An iris and artificial technology, applied in the direction of eye implants, etc., can solve the problems of cataract, difficult operation, restricted development, etc., and achieve the effect of simple operation and difficult operation.

Inactive Publication Date: 2013-11-06
王冲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires complex suture and knotting operations in the narrow and closed space of the eye, and the operation is difficult, which limits the development of this type of operation
Many patients with iris defects cannot receive effective treatment
[0007] In addition, patients with iris atrophy and loss due to lesions or trauma are often accompanied by lens disease or trauma, not only cataracts, but also lesions or even loss of the lens capsule
In the treatment of cataract, it is necessary to implant an artificial lens, but due to the lesion or even loss of the lens capsule bag, it is more difficult to fix the artificial lens

Method used

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  • Artificial iris using fastening wires for fixing in eye
  • Artificial iris using fastening wires for fixing in eye
  • Artificial iris using fastening wires for fixing in eye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Depend on figure 1 The artificial iris plan shown and figure 2 It can be seen from the cross-sectional view of the artificial iris that the artificial iris includes the artificial iris septum 1 and the loop wire 2 for fixing; the artificial iris septum 1 is an opaque disc-shaped structure with a hole 3 in the center, its outer diameter is 11mm, and its thickness is 0.4mm ; The diameter of the central hole 3 is 5mm. There are also three small holes 4 distributed on the artificial iris septum, and the diameter of each small hole 4 is 0.2 mm.

[0035] The number of loop wires 2 for fixation is 4, distributed centrally symmetrically, each loop wire has a length of 6 mm, a thickness of 0.3 mm, and a width of 0.4 mm, and there are two enlarged parts 5 on the loop wires. The top 6 of the wire is a barb-like structure that prevents slippage.

[0036] When surgically implanting the artificial iris of this embodiment, the artificial iris is first curled and then implanted int...

Embodiment 2

[0038] Depend on image 3 The artificial iris plan shown and Figure 4 As can be seen from the artificial iris sectional view shown, the artificial iris includes an artificial iris septum 1, a loop wire 2 for fixing, and a transparent membrane 7; wherein the artificial iris septum 1 is an opaque disc-shaped structure with a hole 3 in the center, and its outer diameter is 10mm. The thickness near the central hole 3 is 0.3 mm, and the thickness near the edge is 0.5 mm; the diameter of the central hole 3 is 4 mm. There are also two small holes 4 distributed on the artificial iris septum, and the diameter of each small hole 4 is 0.25 mm. In addition, two slits 11 with a length of 2 mm are distributed on the artificial iris septum. The artificial iris compartment 1 also includes a light-shielding layer 8 .

[0039] The number of loop wires 2 for fixation is 3, distributed centrally symmetrically, each loop wire has a length of 7 mm, a thickness of 0.4 mm, and a width of 0.5 mm, a...

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PUM

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Abstract

The invention relates to an artificial iris using fastening wires for fixing in an eye. The artificial iris comprises an artificial iris diaphragm and the fastening wires for fixing, wherein the artificial iris diaphragm has a transparent disc structure, the center of which is provided with a hole, and pores are distributed on the artificial iris diaphragm; and the number of the fastening wires for fixing is more than 1, the fastening wires are distributed in central symmetry, and the fastening wire bodies are provided with expanded parts. The artificial iris can further comprise a transparent film, and the edge of the transparent film is combined with the artificial iris diaphragm to form a sac for fixing an intraocular lens. The artificial iris solves the problems that the conventional artificial iris needs to be sutured at the eye and the intraocular lens cannot be implanted into the human eye without a lens capsule. The artificial iris can be used for treating the human eyes of eye traumas or pathological iridocoloboma, and plays a role of a natural iris; and the artificial iris further comprising the intraocular lens sac can be used for treating lens-free eyes without irises or lens sacs.

Description

technical field [0001] The invention relates to an artificial iris, in particular to an artificial iris which is fixed inside the eye with a loop wire. Background technique [0002] Lesions or trauma may lead to iris atrophy and loss, so that the eye's ability to control light and limit aberrations will disappear, and the visual function will remain in a low state for a long time. Due to the atrophy and missing iris, it is currently impossible to regenerate it through drugs and other means, and can only be repaired by surgery. Common surgical methods include iris suture and artificial iris implantation. Iris suture is to use the elasticity of the remaining normal iris tissue to suture and fix the iris tissue together, which can control light and limit aberration to a certain extent. Artificial iris implantation is the use of artificial materials to replace part or all of the iris in the eye for fixation. [0003] At present, there are mainly two methods of intraocular fix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/14
Inventor 史晓春
Owner 王冲