Apparatus and method for separating the epithelium layer from the cornea of an eye without corneal pre-applanation
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United States of America Patent
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Issued Date -
Dec 23, 2004
app pub date -
Dec 16, 2003
filing date -
Dec 19, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An instrument for separating at least a portion of the epithelium from Bowman's layer of a cornea of an eye. The instrument includes a vacuum-operated positioning ring for temporary attachment to the eye so that the cornea is received and exposed in a non-planar configuration and the epithelium is not in contact with any portion of the instrument. In addition, the instrument has a separator with an edge that separates the epithelium of the non-planar cornea from the underlying Bowman's layer as the separator moves along a predetermined path intersecting the cornea. No portion of the instrument contacts the epithelium prior to it being separated from Bowman's layer by the separating edge.
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