Pulling aid for fixing lens loop between sclera layers for seamless posterior chamber type intraocular lens and using method of pulling aid

Abstract

The invention discloses a pulling aid for fixing a lens loop between sclera layers for a seamless posterior chamber type intraocular lens and a using method of the pulling aid. The aid is characterized in that the bottom end of a handle is connected with the left end of a sclera inter-layer needle, and a cavity is formed in the upper portion of the handle; a first channel is formed in the sclera inter-layer needle, the left end of the first channel extends to the left end face of the sclera inter-layer needle, a hole is formed in the side wall of the sclera inter-layer needle, and the right end of the first channel extends to the hole; a second channel is formed in the lower portion of the handle, the upper end of the second channel communicates with the cavity, and the lower end of the second channel communicates with the left end of the first channel; and a sleeve is placed in the cavity, the top end of a loop elastic needle extends out of a first through hole and is connected with apulling piece, a fixing piece is arranged between the sleeve and the cavity, and an ejection device is arranged in the cavity. According to the aid, when the loop elastic needle penetrates into a ciliary body, instant vertical pressurizing penetrating force exists, the damage to the ciliary body is small, and serious complications such as ciliary body superior space disengagement or bleeding canbe effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of intraocular lens implantation, and in particular relates to a sutureless posterior chamber intraocular lens sclera interlayer fixation crystal loop aid and a method of use thereof. Background technique [0002] Aphakic eyes without capsular bag support after ocular trauma or Phaco surgery need a second-stage implantation of IOLs to restore visual function. The methods of fixing IOLs are briefly as follows: anterior chamber IOLs, iris-fixed IOLs, sclera Fixed posterior chamber intraocular lens (suture method and sutureless method) (Li Fengming, Xie Lixin. Chinese Ophthalmology [M]. Beijing: People's Medical Publishing House, 2014: 1585-1587.). [0003] The method of anterior chamber IOL implantation is similar to that of conventional IOL implantation, and the operation can be easily completed with a conventional IOL implanter, but complications such as secondary glaucoma and corneal endothelial decompensat...

AI Technical Summary

Problems solved by technology

Sutureless posterior chamber intraocular lenses can avoid the disadvantages of anterior chamber intraocular lenses, iris-fixed intraocular lenses, and scleral-fixed posterior chamber intraocular lenses (suture method) in the clinical application process, and have broad prospects. 1ml syringe needle, but during the implantation process (Fig. 1) pulling the intraocular lens loop damages a lot (it takes about 60° of the needle to pull the lens loop after scleral puncture), and the positioning is poor (blind between the scleral layers) And there is a risk of misalignment or dislocation of the suspended lens after surgery

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