Sphenoidal electrode and insertion method
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United States of America Patent
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-
Feb 21, 1989
Grant Date -
N/A
app pub date -
Jul 8, 1987
filing date -
Jul 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved apparatus and method for insertion of a sphenoidal wire electrode. The apparatus includes a needle (22) carrying a wire (24) having a turned-back distal portion (34) beside the needle and terminating forwardly along the slant-tip (28). The method includes positioning the wire in the needle with such turned-back distal portion as described, inserting the needle and wire, engaging the tissue with the turned-back portion to resist unintended relocation during needle withdrawal and the subsequent test period, and unfolding the turned-back portion of the wire to straighten it by initial pulling of the wire after the test period.
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