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

A technology for intraocular lens and fixed lens, which is applied in the direction of intraocular lens, eye implant, etc. It can solve the problems of poor positioning suspension lens, large damage, and deviation, so as to avoid position deviation, small damage, and clinical application wide-ranging effects

Pending Publication Date: 2021-02-05
台州市中心医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 2 , 5 , shown in , 6, 8, a kind of is used for the posterior chamber type intraocular lens sclera interlayer fixation crystal loop pull-up aider of seamless posterior chamber type, comprises: handle 12, sclera interlayer pin 2, loop spring pin 7 (represent with straight line in the figure ) and puller 8, the loop spring needle 7 is a hollow needle body, and the right end or all of the needle 2 between the scleral layers is arc-shaped, so that the arc can walk between the scleral layers along the direction of the corneoscleral limbus, and the bottom of the handle 12 end is connected with the left end of the scleral interlayer needle 2 (the angle between the handle 12 and the scleral interlayer needle 2 is not limited, it is convenient to use), a cavity 13 is formed in the top of the handle 12, and a first cavity is formed on the top of the cavity 13. a through hole 9;

[0047] A first channel 3 is formed in the scleral interlayer needle 2, the left end ...

Embodiment 2

[0054] On the basis of embodiment 1, it also includes: a scale 14 with the same radian as the scleral interlayer needle 2 (when the scleral interlayer needle 2 walks between the scleral layers, it clearly shows that the scleral interlayer needle walks in the scleral interlayer The length of track), the left end of scale 14 is fixed on the lateral wall of handle 12, and scale 14 is identical with the shape of sclera interlayer needle 2 and is parallel, and scale 14 is positioned at the top of this sclera interlayer needle 2. The scale 14 can indicate the traveling distance of the scleral interlayer needle between the scleral layers, clearly showing the traveling distance to avoid the damage to the sclera caused by blind puncture, and at the same time, it can significantly improve the accurate positioning of the suspended crystal loop, and avoid postoperative suspension of the crystal loop. Shift (with the help of scale markings, flexibly grasp the fixed length of the suspended c...

Embodiment 3

[0059] On the basis of Embodiment 2, the ejection device 5 is a compression spring, and the compression spring is located in the sleeve 6, the top of the compression spring is connected to the top of the cavity 13, and the bottom of the compression spring is connected to the bottom of the sleeve 6, Loop pin 7 passes through this stage clip along the central axis of stage stage.

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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...

Claims

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Application Information

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IPC IPC(8): A61F2/16
CPCA61F2/1662
Inventor 白建海
Owner 台州市中心医院
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