Adjustable bag inner ring

An adjustable, annular technology, applied in the direction of intraocular lens, eye implants, coatings, etc., can solve the problem of inability to adjust the size, reduce the incidence of posterior cataract, etc., to reduce the risk of capsular bag rupture, The effect of reducing the difficulty of surgery and preventing excessive contraction

Active Publication Date: 2020-08-04
XIAN PILLAR BIOSCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) This intracapsular ring has a certain thickness, which can maintain the shape of the capsular bag just like the equatorial ring, effectively avoiding the contact between the front and rear capsular membranes, maintaining the open state of the capsular bag, and form

Method used

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  • Adjustable bag inner ring
  • Adjustable bag inner ring
  • Adjustable bag inner ring

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1

[0048] The adjustable intracapsular ring in this embodiment includes an annular body 1 and a boss 2 for assembling an intraocular lens. The boss 2 is arranged on the inner side of the annular body 1. When the adjustable intracapsular ring is implanted After the bag is bagged, the outer circumference of the annular body 1 can be in contact with the inner side of the bag, the boss 2 is located at the lower part of the thickness of the annular body 1, the thickness H1 of the annular body 1 is greater than the thickness H2 of the boss 2, and the boss The front side of 2 is lower than the front side of the annular main body 1, the rear side of the boss 2 is higher than the rear side of the annular main body 1, the annular main body 1 is a closed-loop structure, and the annular main body 1 consists of two or two sections. The above arc structure 11 is formed by connecting a connecting portion 12, the connecting portion 12 is a V-shaped or U-shaped structure, the o...

Example Embodiment

[0049] Example 2

[0050] The adjustable intracapsular ring in this embodiment includes an annular body 1 and a boss 2 for assembling an intraocular lens. The boss 2 is arranged on the inner side of the annular body 1. When the adjustable intracapsular ring is implanted After the bag is bagged, the outer circumference of the annular body 1 can be in contact with the inner side of the bag, the boss 2 is located at the upper part of the thickness of the annular body 1, the thickness H1 of the annular body 1 is greater than the thickness H2 of the boss 2, and the boss The front side of 2 is lower than the front side of the annular main body 1, the rear side of the boss 2 is higher than the rear side of the annular main body 1, the annular main body 1 is a C-shaped open-loop structure, and the annular main body 1 is a segment of a circle. The arc structure 11 is formed, and the annular body 1 and the boss 2 are integrally formed.

Example Embodiment

[0051] Example 3

[0052] For the adjustable intrasaccular ring described in this embodiment, see figure 1 , comprising an annular body 1 and a boss 2 for assembling an intraocular lens, the annular body 1 and the boss 2 are integrally formed, the annular body 1 is a C-shaped open-loop structure, and the boss 2 It is arranged on the inner side of the annular main body 1, the annular main body 1 is composed of a segment of arc structure 11, the inner side of the annular main body 1 is provided with two bosses 2, and a notch groove is arranged between the two bosses 2 21. The thickness H1 of the annular body 1 is greater than the thickness H2 of the boss 2, the boss 2 is located in the middle of the thickness of the annular body 1, the front side of the boss 2 is lower than the front side of the annular body 1, and the rear of the boss 2 The side surface is higher than the rear side surface of the annular body 1 . When the adjustable intracapsular ring is implanted into the ca...

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Abstract

The invention belongs to the technical field of ophthalmic implantation instruments, and particularly relates to an adjustable bag inner ring. The adjustable intracapsular ring comprises an annular main body and a boss used for assembling an intraocular lens, the boss is arranged on the inner side face of the annular main body, the annular main body is of a closed-loop structure or a C-shaped open-loop structure, and after the adjustable intracapsular ring is implanted into a capsular bag, the outer circumference of the annular main body can make contact with the inner side face of the capsular bag. The invention relates to the adjustable intracapsular ring which is a ring with an adjustable size. After the capsular bag is implanted, the outer surface of the bag inner ring is smooth; the inner side surface of the equator of the adjustable bag inner ring is in full contact; a 360 DEG barrier is formed, the periphery of the adjustable bag inner ring is tightly attached to the bag film. Not only can the safety of lens ultrasonic emulsification cataract aspiration and posterior atrial intraocular lens implantation be improved, the circular outline of the lens capsular bag be maintainedand the normal physiological position of the lens capsular bag be maintained, but also the loss of vitreous bodies can be reduced, the eccentricity of the intraocular lens can be prevented, and the contact between the front capsular membrane and the rear capsular membrane can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of ophthalmic implantation devices, and in particular relates to an adjustable intracapsular ring. Background technique [0002] Hara et al first invented the capsular equatorial ring in 1991. The equatorial ring is made of silicone material and is designed to maintain the circular contour of the capsular bag after cataract surgery. The inner surface has grooves for placing the haptics of the intraocular lens. The rings both maintain the circular profile of the capsular bag and place the IOL on the equatorial ring. Later, someone also produced a foldable closed ring composed of PMMA material and copolymer materials polymerized by HEMA and MMA, which are alternately connected in turn, with a total of 16 segments. The front and rear edges of the ring are designed with sharp square edges, which helps It forms a 360° barrier around the equator of the capsular bag, effectively reducing the incidence of post-cata...

Claims

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Application Information

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IPC IPC(8): A61F2/16
CPCA61F2/16A61F2002/16901A61F2310/0097
Inventor 田奎杨愔彭群郭光旭
Owner XIAN PILLAR BIOSCI CO LTD
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