NEUROLOGICAL APPARATUS COMPRISING A PERCUTANEOUS ACCESS DEVICE

摘要

Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus comprises a percutaneous access device (50;140;150;160) having a body (10;52;152) with at least one extracorporeal surface (22;68) and at least one subcutaneous surface. The body (10;52) defines at least one port (12;116) for connection to an implanted intracranial catheter. The port (12;116) is accessible from the extracorporeal surface (22;68) of the device, but is provided with a seal (14;112;142;146) such as a rubber bung between the lumen of the port and the extracorporeal surface (22;68).A guide member (42) is provided that projects from the body (10;52) of the device, the guide member (42) ensuring that the percutaneous access device (50;140;150;160) and an associated delivery unit (34) can only be fitted together one way. The percutaneous access device may have more than two ports (12;116).