Tuohy needle

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Related to Tuohy needle: Quincke needle

Tuo·hy nee·dle

a needle with a lateral opening at the distal end, designed to cause a catheter passing through the needle's lumen to exit laterally at a 45-degree angle; used for placing catheters into the subarachnoid or epidural space.

Tuohy needle

[Edward B. Tuohy, U.S. anesthesiologist, 1908–1959]
A needle with a curved point that is used in epidural anesthesia. The curve reduces the possibility that the point of the needle and the anesthetic will enter the dura mater.


Edward B., 20th century U.S. anesthesiologist.
Tuohy aortography needle
Tuohy needle - used to place catheters into the subarachnoid or epidural space.
Tuohy-Borst adapter
Tuohy-Borst introducer
References in periodicals archive ?
Although there is a theoretical risk of introducing skin flora from the puncture site along the track of the Tuohy needle, to the authors' knowledge no infective sequelae have been reported following shearing damage to an epidural catheter.
With a 16 to 18 gauge Tuohy needle this results in a post dural puncture headache (PDPH) in up to 80% of cases (1-4).
After failure to locate the epidural space with an 8 cm needle, an 11 cm Tuohy needle located the space at a depth of 9 cm.
With the patient in the right lateral position, a 16 gauge Tuohy needle was inserted by paramedian approach at the L3-4 interspace.
CHICAGO, April 3, 2014 /PRNewswire/ -- American Society of Regional Anesthesia and Acute Pain Medicine Meeting (ASRA) (Booth #101) - I-Flow, LLC, a Kimberly-Clark Health Care Company and manufacturer of the ON-Q Pain Relief System(ON-Q), today announced the addition of premium echogenic stimulating Tuohy needles to its ON-Q T-bloc trays, providing additional guidance capabilities for peripheral nerve block placement.
5 watts of power into the fibroids through Tuohy needles.