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Artificial crystalline for transplanting in eyes and appliance and method for inserting such crystalline

A technology of intraocular lens and equipment, applied in the direction of intraocular lens, eye implant, prosthesis, etc., can solve the problems of troublesome meshing between intraocular lens and micro-hook, difficulty in coordination and control, etc.

Inactive Publication Date: 2003-10-08
オフテックビーブイ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this approach is that engaging the IOL with the microhook is cumbersome and requires further cuts in the eye to insert a second microhook instrument that pulls the IOL into the eye
Furthermore, it is relatively difficult to coordinate the control of two instruments inserted into the eye through different incisions

Method used

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  • Artificial crystalline for transplanting in eyes and appliance and method for inserting such crystalline
  • Artificial crystalline for transplanting in eyes and appliance and method for inserting such crystalline
  • Artificial crystalline for transplanting in eyes and appliance and method for inserting such crystalline

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Embodiment Construction

[0046] First refer to figure 1 and 2 The invention is described in which a first embodiment of an instrument and a lens according to the invention is shown. show on figure 2 The lens in is also shown in Figure 18 middle.

[0047] Such as figure 1 and 2 The illustrated insertion instrument 1 is used to pass an intraocular lens 4 through an incision 20 in the cornea (shown schematically at figure 2 middle) into the eye. The insertion instrument 1 has an elongated insertion part 2 protruding from a grip 14 , and at the end of the part 2 a hook part 3 protruding laterally from the part 2 . The intraocular lens 4 to be implanted using the instrument 1 has haptics 5 , 6 protruding from opposite sides of the optic portion 7 of the intraocular lens 4 . The optical part 7 is deformable. The haptics 5, 6 are respectively formed by a pair of arms 8, 9 so as to clamp the iris tissue between the mutually facing surfaces of the arms 8, 9 located in the clamping area 10, the hapt...

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Abstract

An intraocular lens includes an optical portion (7; 607; 907; 1107) of a transparent, deformable material, at least one haptic (5, 6; 205, 206; 405, 406, 706; 806; 905; 1005; 1105; 1205) radially projecting from the optical portion for supporting the optical portion in a position parallel to and against an anterior iris surface plane (936; 1136), and at least one aperture (13; 213; 713; 913; 1013; 1113) bounded by the haptic. At least a stiff portion of the haptic has a higher stiffness against bending about an axis in the radial direction than the optical portion. Furthermore, the stiff portion has a width ( a ) measured parallel to the plane and perpendicular to the radial direction, which is smaller than the size ( b ) of the optical portion in the direction of the width. An instrument for carrying out insertion of such a lens are also described.

Description

technical field [0001] The present invention relates to an intraocular lens, an instrument for inserting an intraocular lens into an eye, a method for preparing an intraocular lens for insertion into an eye, and a device for inserting an intraocular lens into an eye comprising such a preparation method Methods. Background technique [0002] Such lenses, such instruments, and such methods are disclosed in US Patent 4,573,998. One of the most common eye surgeries is implantation of an intraocular lens, which is a structure approximately 5 mm thick and approximately 9 mm in diameter, after surgical removal of the opaque lens from the eye of a cataract patient. Intraocular lenses are often implanted in the anterior chamber of the eye (in front of the iris) or in the posterior chamber of the eye (behind the iris) in the capsular bag or sulcus. [0003] Another indication for the prescription of intraocular lenses is the optical correction of the natural lens. For this purpose,...

Claims

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Application Information

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IPC IPC(8): A61F9/007A61F2/16A61F2/48
CPCA61F2/1613A61F2/1675A61F2/1678A61F2/1608
Inventor 扬·赫尔本·弗兰斯·沃斯特哈里·弗朗西斯库斯·西蒙马丁努斯·奥伯诺
Owner オフテックビーブイ
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