The present invention provides a medical needle assembly which has a removable at will needle hub for a spinal needle, which can be used to access the epidural or subarachnoid space of the spinal cord. This improvement in spinal needle design allows and facilitates the use of the medical needle for the...http://www.google.es/patents/US7549996?utm_source=gb-gplus-sharePatente US7549996 - Tunneling needle design having an on-demand removable hub
Tunneling needle design having an on-demand removable hub
