A sterile, sharp bevel-edged, hollow tubular metal instrument designed to deliver anaesthetic or analgesic agents intrathecally (in the space under the arachnoid membrane of the brain and spinal cord), withdraw a sample of cerebrospinal fluid (CSF), and/or assist introduction of an intrathecal catheter (e.g., lumboperitoneal shunt, spinal catheter). It is typically fenestrated, spring-tipped, and used for short-term administration; it is typically made of metal and plastic materials. This is a single-use device.
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