Corneal vacuum centering device

Details Corneal vacuum centering device Corneal vacuum centering device

1997-07-18

2000-11-07

Buiz, Michael

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606170, 606172, 606180, A61F 900

Patent

active

061430102

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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D'Hermies et al., "Biocompatibility of a refractive intracorneal PMMA ring" Fortschr Opthalmol (1991) 88:790-793.
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