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Improved haptic device for ciliary sulcus implants

A ciliary, state technology, applied in eye implants, intraocular lenses, etc., can solve the problems of unstable ciliary sulcus motion, irregular anatomical structure of ciliary sulcus, etc.

Active Publication Date: 2016-05-18
QMP HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of known sulcus lenses is that they have a natural tendency to turn or move off-center, which is caused by the very irregular anatomy of the sulcus and the instability of the movement of the sulcus

Method used

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  • Improved haptic device for ciliary sulcus implants
  • Improved haptic device for ciliary sulcus implants
  • Improved haptic device for ciliary sulcus implants

Examples

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Embodiment Construction

[0027] In each figure, elements that are the same or have similar functions are denoted by the same symbols.

[0028] In the drawings, reference numeral 1 denotes an optical portion, and reference numeral 2 denotes a haptic member.

[0029] figure 1 Schematic representations of haptic loops according to the invention at rest (dashed lines) and at maximum deformation (solid lines) are provided, with straight line sections illustrating these different positions. There it will be observed that the ring 2 is formed by two lower segments 2a, 2b connected at one end by two lower bending points 3, 4 to the optical 1 , while at the other end it is connected by two upper bending points 5 , 6 to the upper segment formed by two parts 2c1 , 2c2 which are connected to each other by a bending point 7 . The lower inflection points 3, 4 are spaced apart from each other by a distance D such that they converge in the direction of the optic with respect to the median vertical axis A passing th...

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Abstract

An intraocular lens for implantation in the ciliary sulcus of the eye, the intraocular lens has an optic (1) on the periphery of which at least two haptic posts (2) in the form of closed loops are arranged, The haptic posts (2) are arranged symmetrically on each side of the optic. Each annulus (2) consists of at least three segments interconnected by inflection points (5, 6), i.e. an arcuate upper segment (2c) forming the part for contacting the ciliary sulcus of the eye, and a The connection between the upper segment (2c) of the optical part (1) and the two lower segments (2a, 2b) of the optical part (1), the two lower segments (2a, 2b) are also connected to the Optics (1). The length of the upper segment (2c) is smaller than the sum of the length of the lower segment (2a, 2b) and the length of the gap (D) in the region where the lower segment (2a, 2b) is connected to the optic. The spacing (D) is such that the lower segments (2a, 2b) converge towards each other in the direction of the optic (1).

Description

technical field [0001] The present invention relates to lenses that are implantable in the eye and are commonly referred to as intraocular lenses (IOLs). The present invention relates more particularly to lenses for implantation in the ciliary sulcus between the iris and the capsular bag when the capsular bag cannot accommodate a corrective lens after phakectomy, and when said capsular bag already contains artificial The crystalline lens and the ciliary sulcus lens are to correct residual defects or defects created after the primary lens is implanted in the capsular bag, or when it is necessary to add new features to the optical system of the eye, such as: [0002] - correction of corneal astigmatism, [0003] - correction of nearsightedness with the help of multifocal lenses, [0004] - Equipped with a filter against blue light to prevent light sensitivity. Background technique [0005] A disadvantage of known sulcus lenses is that they have a natural tendency to turn or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/16
CPCA61F2/1613A61F2002/1683A61F2002/1689
Inventor 拉斯洛·孔图尔鲁迪格尔·德沃厦克
Owner QMP HLDG
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