Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1989-11-28
1991-05-28
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
606170, A61B 1732
Patent
active
050190369
ABSTRACT:
A method and apparatus are provided for removing gelatinous tissue, such as cataractous lens tissue, from a patient. A probe-like instrument is provided which includes a thin, perforated plate mounted to an end thereof. A rotatable cutting tool is positioned within the probe and includes a cutting edge which bears against the perforated plate. The plate is moved into contact with a tissue mass, thereby causing portions of the tissue mass to project through the perforations in the plate. Rotation of the cutting tool causes the tissue mass to be sheared into small fragments which can be removed by aspiration.
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