CPC A61M 25/0067 (2013.01) [A61M 2210/0693 (2013.01)] | 15 Claims |
1. A method for intraparenchymal delivery of a fluid to an elongate structure of a brain of a subject, the method comprising delivering the fluid to the elongate structure by inserting at least one intraparenchymal catheter having at least one step into the brain using a posterior to anterior approach along an insertion axis that is substantially aligned with a long axis of the elongate structure, such that said at least one step is located within said elongate structure and fluid will reflux from a tip of said catheter to said step and deliver more fluid to said elongate structure than a method without said at least one step located within said elongate structure.
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