Cannula and stylet system
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United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Apr 20, 1992
filing date -
Apr 20, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A needle system including a plastic cannula and a stylet, and a procedure utilizing the needle system for positioning the end of a spinal catheter within the subarachnoid space surrounding a patient's spinal cord for continuous administration of anesthetics and/or analgesic medications. The stylet has a pencil-point sharpened end for forming a minimal size opening in the dura defining the subarachnoid space to minimize the loss of cerebrospinal fluid therefrom during this procedure. The cannula has a hub formed of glass-clear plastic, which is provided with viewing recesses.
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Cited Art Landscape
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