Catheters incorporating valves and permeable membranes

Details Catheters incorporating valves and permeable membranes Catheters incorporating valves and permeable membranes

2004-06-22

2011-10-25

Koharski, Christopher D (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

08043281

ABSTRACT:
Devices, systems and methods for delivering one or more drugs to one or more internal body locations (such as the cerebrospinal fluid) are disclosed. In various aspects, the systems and methods may involve catheters having infusion sections with permeable membranes and one or more valves that control flow to the infusion sections.

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