公开(公告)号：US20250073434A1

公开(公告)日：2025-03-06

申请号：US18765894

申请日：2024-07-08

Applicant: Biogen MA Inc.

Inventor： Daniel J. Abrams ,  Lisa Lynn Shafer

IPC: A61M27/00 ,  A61B10/00 ,  A61M5/14 ,  A61M5/142 ,  A61M5/158 ,  A61M5/165 ,  A61M25/00 ,  A61M39/02

Abstract: An implantable medical device for delivering therapeutic fluid to, and withdrawing cerebrospinal fluid (CSF) from, a CSF-containing space, includes a first inlet configured to be accessed by a needle of an aspiration device; a first outlet; a first fluid pathway extending from the first inlet to the first outlet; a second inlet; a second outlet; and a second fluid pathway extending from the second inlet to the second outlet. The first fluid pathway is free of a filter configured to prevent passage of a microbe.