Asynchronous method of operating microsurgical instruments
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United States of America Patent
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Jun 1, 2004
Grant Date -
Oct 18, 2001
app pub date -
Dec 15, 2000
filing date -
Dec 20, 1999
priority date (Note) -
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Abstract
An improved, asynchronous method of operating a microsurgical instrument, such as a vitrectomy probe. The instrument includes a port for receiving tissue and an inner cutting member. A flow of tissue is induced into the port with a vacuum source. The port is at least partially occluded with the tissue. The occlusion is detected, and the inner cutting member is actuated to close the port and cut the tissue.
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