Device and method for aligning an eye with a surgical laser
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United States of America Patent
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Jun 24, 2008
Grant Date -
Aug 31, 2006
app pub date -
Feb 25, 2005
filing date -
Feb 25, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A device for establishing a desired alignment between a patient's eye and a laser system to facilitate an engagement therebetween includes a light source to illuminate the eye. A moveable platform is provided to move the patient relative to the laser system. To establish alignment between the eye and the laser system, a reference marker is based on the laser system. An image of the marker, along with reflections from the illuminated eye, is then transmitted to the system controller. There, the image and reflections are processed to determine a measured alignment that is then compared to the desired alignment. An error signal that is indicative of an alignment difference is then generated and used to incrementally move the platform, or the patient, in an appropriate direction.
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