Keratome without applanator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 23, 2003
Issued Date -
N/A
app pub date -
Mar 7, 2000
filing date -
Aug 12, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A keratome for performing corneal resectioning which functions without a need for a surface against which to press the subject cornea during surgery, facilitating access for the surgeon and reducing or eliminating mechanical part rubbing near the surgical site. The keratome has a positioning ring to position an eye with the cornea protruding through and restrained by the ring. A blade is preferably suspended from its ends by a blade support which is driven by a drive mechanism, and a guide is disposed substantially parallel to the blade. The blade describes a forward path above and at a controlled distance from the positioning ring while also oscillating laterally. A guide may be disposed parallel to the blade edge to control resectioning thickness. Drive control and vacuum for the positioning ring are provided under user command by a control unit having user inputs.
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