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Apparatus and method for laser assisted eye surgery system

A surgical treatment, laser-assisted technology, used in ophthalmic treatment, laser surgery, ophthalmic surgery, etc., can solve problems such as long-term

Active Publication Date: 2017-09-22
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] A negative aspect of the procedure is that the quality of the alignment depends on the experience and skill of the physician and can therefore be more or less subject to considerable variation
In addition, manual alignment by a physician takes considerable time

Method used

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  • Apparatus and method for laser assisted eye surgery system
  • Apparatus and method for laser assisted eye surgery system
  • Apparatus and method for laser assisted eye surgery system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0055] exist figure 1 In, the components of the laser-assisted eye surgery system 10 have been shown schematically. The treatment system 10 comprises a laser 12 which provides a laser beam 14 consisting of short pulses of laser radiation, eg with a pulse duration in the attosecond, femtosecond or picosecond range. The laser beam 14 is directed onto the eye 16 to be treated by means for beam steering and beam shaping described in more detail below. The eye 16 is fixed in the x′, y′, z′ coordinate system S′ of the treatment system 10 with the aid of an applicator 18 . The applicator 18 contains a contact element 20 , represented here in a typical manner as a flat plate in parallel planes, which is transparent to laser radiation and which, for example, presses against the eye. 16 so that the eye 16 conforms to the contact element 20 through the front of the contact element 20 . The applicator 18 further comprises a support body 21 for the contact element 20 , which has been re...

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PUM

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Abstract

The invention relates to a device for a laser-assisted eye surgery system, said device comprising a first image acquisition unit designed to acquire a first image of the eye to be treated (39 ). The device further comprises computer means designed to detect at least one first feature (40') of the eye by image processing of the first image and to determine that the first feature is in the position and orientation in the coordinate system (S') of the treatment system described above. The computer means is also designed to depend on the determined position and orientation of the first feature (40') in the coordinate system and on the basis of at least one second feature (64') of the eye relative to the The previously determined relative position and orientation of the first feature (40') determines the position and orientation of the incision pattern (66') to be created on the eye in the coordinate system (S') of the treatment system.

Description

technical field [0001] The present invention relates to a device for use in a laser assisted eye surgery system and also to a method for use in a laser assisted eye surgery system. Background technique [0002] In refractive eye surgery, the refractive properties of the eye, and thus the imaging properties, are altered by surgery on the patient's eye in order to alleviate or correct vision defects. One known form of surgery is eg LASIK (Laser In Situ Keratomileusis). In this case, a flat corneal incision is made through which a small disc that acts as a covering (often denoted in the professional world and even in German by the English term "flap") is produced , where the disk remains anchored to the cornea and forms a hinge there (even in German, usually by the English term). Along the pedicle, the flap can be folded open. As a result, the corneal tissue underlying the flap can be exposed, wherein, with suitable laser radiation, typically excimer laser radiation, the abl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/01A61F9/008
CPCA61F9/00827A61F9/00836A61F9/009A61F2009/00872A61B34/20
Inventor 克里斯托夫·德尼茨基克里斯蒂安·维尔纳彼得·里德尔
Owner ALCON INC