Tuohy needle | 合法醫療器材資訊網

ATuohy(/tOO-ee/)needleisahollowhypodermicneedle,veryslightlycurvedattheend,suitableforinsertingepiduralcatheters.

From Wikipedia, the free encyclopedia

Epidural needle

A Tuohy (/tOO-ee/) needle is a hollow hypodermic needle, very slightly curved at the end, suitable for inserting epidural catheters.

Literally, an epidural needle is simply a needle that is placed into the epidural space. To provide continuous epidural analgesia or anesthesia, a small hollow catheter may be threaded through the epidural needle into the epidural space, and left there while the needle is removed. There are multiple types of epidural needles as well as catheters, but in modern practice in developed nations, disposable materials are used to ensure sterility.

Epidural needles are designed with a curved tip to help prevent puncture of the dural membrane. But following accidental dural puncture, headache occurs ...