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Ophthalmological patient interface device

a patient interface and ophthalmology technology, applied in the field of ophthalmological patient interface devices, can solve the problems that the accuracy of corneal cuts cannot be sufficient, and achieve the effect of extending flexibly and easily the treatment area, and redirecting flexibly

Inactive Publication Date: 2013-08-29
ZIEMER OPHTHALMIC SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an ophthalmological patient interface device that includes a mirror system. This device can be attached to an optical projection system and deflect the laser beam projected by it. The advantage of this design is that it allows for flexibility and ease of use when treating ophthalmic disease. This feature would be difficult to achieve with conventional configurations.

Problems solved by technology

On the other hand, the mechanical deformation of the cornea caused by placing the contact body on the cornea may produce undesirable side effects such as corneal folds that disturb the focus behind the posterior surface of the cornea.
On the other hand, the liquid interface of US 2010 / 0274228 does not place the cornea in a sufficiently defined position with respect to a projection lens so that accurate corneal cuts can only be made by using complex imaging feedback systems and real-time position control during operation, while some corneal cuts cannot be performed with sufficient accuracy at all.

Method used

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Examples

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Embodiment Construction

[0032]In FIGS. 1, 2, 3, 4, 5 and 8, reference numeral 1 refers to an ophthalmological apparatus for treating eye tissue 30 with laser pulses P. As is illustrated schematically in FIGS. 1, 2, 3, 4, 5 and 8, the ophthalmological apparatus 1 comprises a laser source 100 and a control module 14. Depending on the embodiment, the laser source 100 and the control module 14 are arranged in a base station 10, as shown in FIGS. 2, 3, 4, for example. The laser source 100 is configured to generate a pulsed laser beam L, L′, L*, L1, L2, L3 (see FIG. 5, 8 or 9), e.g. a beam of femtosecond laser pulses P. In an embodiment, the laser source 100 is configured to generate a pulsed laser beam L, L′, L*, L1, L2, L3 with a selectable wavelength in the IR-A-infrared range, the IR-B-infrared range, and / or the UVA-ultra violet range. Depending on the embodiment, the laser source 100 includes one or more lasers and / or a frequency modulation module for generating the laser beam L, L′, L*, L1, L2, L3 with alt...

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Abstract

An ophthalmological patient interface device (27), for application onto an eye (3) during treatment of the eye (3), comprises a coupling part (21) for attaching mechanically the ophthalmological patient interface device (27) to an optical projection system (20) of an ophthalmological apparatus (1), and a fastening device (271) for fastening the ophthalmological patient interface device (27) to the eye (3). The ophthalmological patient interface device (27) further comprises a mirror system (275) arranged downstream from the optical projection system (20), when the ophthalmological patient interface device (27) is attached mechanically to the optical projection system (20), and having at least one mirroring surface arranged at an angle with respect to a projection axis of the optical projection system (20), such that a laser beam (L3) projected by the optical projection system (20) is deflected by the mirror system (275).

Description

[0001]The present application claims benefit of and priority to U.S. Provisional Patent Application Ser. No. 61 / 604,149 filed Feb. 28, 2012 entitled Apparatus for Treating Eye Tissue with Laser Pulses, the entire content of which is hereby incorporated by reference herein.BACKGROUND[0002]1. Field of the Disclosure[0003]The present invention relates to an ophthalmological patient interface device for application onto an eye during treatment of the eye. Specifically, the present invention relates to an ophthalmological patient interface device comprising a coupling part configured to attach mechanically the ophthalmological patient interface device to an optical projection system of an ophthalmological apparatus and a fastening device configured to fasten the ophthalmological patient interface device to the eye, and to an ophthalmological apparatus comprising an optical projection system for projecting a laser beam into eye tissue for treatment of the eye and a coupling part configure...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F9/009A61F9/01
CPCA61F9/00825A61F9/00831A61F9/00836A61F9/009A61F2009/00897A61F2009/0087A61F2009/00872A61F2009/00893A61F2009/00865F04C2270/041
Inventor RATHJEN, CHRISTIAN
Owner ZIEMER OPHTHALMIC SYST
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