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AssigneeHaag-Streit AG
InventorsGerd Ulbers, Hansruedi Widmer, Eberhard Pertz, Reto Studer, David Lobel, Hans Fankhauser
Estimating the term…
The present invention relates to a system for the stereoscopic examination of a patient's eye using a slit-lamp microscope (3), wherein the patient's eye (1) is illuminated by a light strip of a predetermined cross section which is emitted by a light source (5). The light source (5) is arranged on the vertical arm (20) of a support (7) and the eye (1) to be examined is placed in an essentially horizontal plane on one side of said support. The stereo-microscope (3) is essentially placed on a plane which is located on the side opposite to the first side of the support (7). The vertical arm (20) of the support (7) is made in the shape of a column having a narrow cross section so as to minimize the optical obstruction between the stereo-microscope (3) and the patient's eye. Using at least one beam (30b) from the stereo-microscope (3), a partial ray is stopped down and the image information of said ray is directed to a reception unit (44) located in said stereo-microscope (3).
A slit lamp device for stereoscopic examination of the eye of a patient with a viewing unit, and the eye can be illuminated with a light beam which proceeds from an illumination unit with a stipulated cross section, the illumination unit is located on top of a vertically running branch of a holding unit, the eye to be examined can be positioned in a roughly horizontally running plane on one side of the holding unit and the viewing unit is located roughly in the plane on the side of the holding unit opposite it, wherein the vertically running branch of the holding unit, which branch carries the illumination unit, is made in only one single column with the narrow column cross section on which there is a deflection mirror with which the emission of the illumination unit can be directed into or onto the eye, by which good patient-physician contact with only slight optical distortion between the viewing unit and the eye of the patient can be achieved.
A slit lamp device for stereoscopic examination of the eye of a patient with a viewing unit which is made as a stereomicroscope, and the eye can be illuminated with a thin streak of light which proceeds from an illumination unit with a stipulated beam cross section, the illumination unit is located on a vertically running branch of a holding unit, the eye to be examined can be positioned in a roughly horizontally running plane on one side of the holding unit, and the viewing unit is located roughly in the plane on the side of the holding unit opposite it, wherein the stereomicroscope is a Greenough microscope which does not have a collimated (nonparallel) beam path, from at least one beam path of which a component beam can be masked out with a unit for coupling the image in/or out, the video information of the component beam is guided to a recording unit which is located in the viewing unit.
Dependencies are inferred from the claim text.