Patent ID: 7887503
Filing Date: 2011-02-15
Classification: A61M,A61N

Abstract:
1. A method for removing harmful organic anions and proteins from a mammalian's ventricular cerebrospinal fluid comprising: a. implanting a pump and filter system comprising, b. implanting a dual lumen catheter in fluid contact with the pump and filter system and in fluid contact with the spine's sub-arachnoid space c. supplying a medicinal dose into the drug reservoir via the access port d. extracting cerebrospinal fluid from the sub-arachnoid space into the drug reservoir via a first lumen of the catheter e. delivering the cerebrospinal fluid through the filter back into the sub-arachnoid space via a second lumen of the catheter f. removing filtered material from the pump and filter system via the access port, and g. supplying another medicinal dose into the drug reservoir via the access port when another medicinal dose is required.