Corneal vacuum centering device
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United States of America Patent
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-
Nov 7, 2000
Grant Date -
N/A
app pub date -
Jul 18, 1997
filing date -
Jul 18, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention is a vacuum centering device which may be used in conjunction with other surgical instruments in opthomological surgery. The device provides an improved interface with the eye by way of features that reduce interference with a patient's eyelids interocular pressure and/or the propensity to rotate. These features may include a flared outer wall portion which may either be curved or straight for a section, providing a low profile vacuum chamber, and/or the use of a non-circular outer sealing region potentially producing a saddle-shaped outer periphery providing for potentially increased vacuum exposure to the eye and a contour resistant to rotation.
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