CN201572212U

CN201572212U - T-type ansa iris suspended fixedly posterior chamber intraocular lens implantation

Info

Publication number: CN201572212U
Application number: CN2009202855009U
Authority: CN
Inventors: 王祥群; 曾骏文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-31
Filing date: 2009-12-31
Publication date: 2010-09-08
Anticipated expiration: 2019-12-31

Abstract

The utility model relates to a T-type ansa iris suspended fixedly posterior chamber intraocular lens implantation, which comprises an intraocular lens implantation; and is characterized in: T-type ansas are disposed symmetrically on both ends of the intraocular lens implantation; both sides of the intraocular lens implantation are convex; the intraocular lens implantation and the T-type ansas are made into an one-piece structure by acrylic acid ester; the intraocular lens implantation and the T-type ansas are made into an one-piece structure by polymethacrylates; the intraocular lens implantation and the T-type ansas disposed symmetrically on both ends of it are three pieces type structures; wherein the intraocular lens implantation is made of acrylic acid ester, and the T-type ansas are made of polymethacrylates. Compared with the prior arts, the utility model mainly achieves the following advantages: the iris can be fixed without suture; operation and medical source wound can be reduced; the interferences to aqueous humor dynamics and corneal endothelium are reduced; and is safer for Asian with shallower anterior chamber.

Description

The suspention of T type loop iris is posterior chamber intraocular lens fixedly

Technical field

This utility model relates to a kind of artificial intraocular lenses, and is especially a kind of at the no suture iris fixation posterior chamber intraocular lens that lacks under the cyst membrane supporting condition.

Background technology

The suspention of T type loop iris is posterior chamber intraocular lens fixedly, and the owner will be used for implanting case in the artificial intraocular lenses's first phase or the second phase that lack under the crystalline peplos supporting condition.

Before this artificial intraocular lenses of above-mentioned case is implanted below the main employing three kinds of mode: a, preceding house type artificial intraocular lenses; B, through the fixed posterior chamber intraocular lens of sclera suture; C, the fixed preceding square artificial intraocular lenses of iris clamping; D, the fixed posterior chamber intraocular lens of iris suture; There is following problem in artificial intraocular lenses's implantation pattern under three kinds of above no cyst membrane supporting conditions:

A, preceding house type artificial intraocular lenses: this technology was used in the eighties in last century, studies confirm that in a large number subsequently, before the house type artificial intraocular lenses can cause irreversible corneal endothelium to lose and big alveolitoid keratopathy, angle of anterior chamber damage, iris wearing and tearing, seclusion of pupil, intraocular pressure rising, hemorrhage, cystoid macular edema etc. less at present use.

B, through the fixed posterior chamber intraocular lens of sclera suture: the more approaching lenticular dissect physiology of the more preceding house type artificial intraocular lenses of this technology position, therefore, corneal endothelium, angle of anterior chamber, iridopupillary pessimal stimulation obviously reduce, and the cystoid macular edema incidence rate also obviously reduces.The greatest problem that this technology exists is: operation technique relative complex, loaded down with trivial details, operating time is longer, what take place easily that puncture needle causes in the hemorrhage and art of fulminant is damaging hemorrhage, this technology is higher to artificial intraocular lenses's positioning requirements simultaneously, postoperative takes place easily that the artificial intraocular lenses tilts or the off normal of optical center, and experience, the skill of operative doctor all had higher requirement.

C, the fixed preceding house type artificial intraocular lenses of iris clamping: the house type artificial intraocular lenses had had minimizing to a certain degree to the damage of angle, room before the iris clamping was fixed, operation technique is more directly perceived, shortened operating time, but still cause irreversible corneal endothelium to be lost easily and big alveolitoid keratopathy, iris wearing and tearing, seclusion of pupil, intraocular pressure raise, hemorrhage, cystoid macular edema etc., seclusion of pupil, fixingly check amphiblestroid case influence greatly for the needs mydriasis.

D, the fixed posterior chamber intraocular lens of iris suture: the advantage that the fixed posterior chamber intraocular lens of iris suture has is: operation technique is more directly perceived, shortened operating time, but the defective of its existence is: through the fixed artificial intraocular lenses of iris suture slide easily, defective such as iris wearing and tearing, inflammation, atrophy and pupil are fixing.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of suture that need not to carry out fixedly posterior chamber intraocular lens of the fixed T type of ophthalmic loop iris suspention, can significantly reduce the iatrogenic wound of operation, simplify operative procedure simultaneously significantly.

According to the technical scheme that this utility model provides, described T type loop iris suspention is posterior chamber intraocular lens fixedly, comprises artificial intraocular lenses's sheet, and it is characterized in that: be symmetrical arranged T type loop at the two ends of described artificial intraocular lenses's sheet, the two sides of described artificial intraocular lenses's sheet is a convexity.

Described artificial intraocular lenses's sheet and T type loop integral structure for making by acrylate.

Described artificial intraocular lenses's sheet and T type loop integral structure for making by polymethacrylates.

The symmetric T type of described artificial intraocular lenses's sheet and two ends loop is the three-chip type structure, and artificial wafer is made by acrylate, and T type loop is made by polymethyl ester ester.

This utility model compared with prior art, the advantage that has is mainly the following aspects: need not suture and can carry out iris fixation, reduce operation technique and iatrogenic wound significantly; Disturb little to aqueous humor dynamic and corneal endothelium; Safer to the Aisan that the anterior chamber is shallow partially.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

The specific embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As Fig. 1～shown in Figure 2: the artificial intraocular lenses comprises artificial intraocular lenses's sheet 1, T type loop 2 etc.

This utility model comprises artificial intraocular lenses's sheet 1 and is symmetricly set on the T type loop 2 at artificial intraocular lenses's sheet 1 two ends that the two sides of described artificial intraocular lenses's sheet 1 is a convexity.

Embodiment one:

Described artificial intraocular lenses's sheet 1 is made by acrylate, and described T type loop 2 is made by propernoic acid ester, and artificial intraocular lenses's sheet 1 and T type loop 2 are integral structure.

Embodiment two:

Described artificial intraocular lenses's sheet 1 is made by polymethacrylates, and described T type loop 2 is made by polymethacrylates, and artificial intraocular lenses's sheet 1 and T type loop 2 are integral structure.

Embodiment three:

Described artificial intraocular lenses's sheet 1 is made by acrylate, and described T type loop 2 is made by polymethacrylates, and artificial intraocular lenses's sheet 1 and two ends symmetric T type loop 2 is the three-chip type structure.

This utility model is applied in the first phase or the second stage of artificial intraocular lenses that lack under the cyst membrane supporting condition and implants case, with the iris is to support and immobilization carrier.

Claims

1. a T type loop iris suspends fixedly posterior chamber intraocular lens in midair, comprises artificial intraocular lenses's sheet (1), and it is characterized in that: be symmetrical arranged T type loop (2) at the two ends of described artificial intraocular lenses's sheet (1), the two sides of described artificial intraocular lenses's sheet (1) is a convexity.

2. artificial intraocular lenses as claimed in claim 1 is characterized in that: described artificial intraocular lenses's sheet (1) and T type loop (2) integral structure for being made by acrylate.

3. artificial intraocular lenses as claimed in claim 1 is characterized in that: described artificial intraocular lenses's sheet (1) and T type loop (2) integral structure for being made by polymethacrylates.

4. artificial intraocular lenses as claimed in claim 1 is characterized in that: described artificial intraocular lenses's sheet (1) and two ends symmetric T type loop (2) is the three-chip type structure, and artificial wafer (1) is made by acrylate, and T type loop (2) is made by polymethyl ester ester.