A Multi-center, Early Feasibility Study of Using the Mechanical Tissue Resuscitation™ (MTR™) Therapy System for Removal of Excess Fluid in Subjects Who Have Had a Portion of Their Skull Removed to Expose the Dura/Brain and Require Drainage for Fluid Removal.

Mechanical Tissue Resuscitation (MTR™) to externally drain excess fluid volume from the site of surgery in patients who have undergone a surgical procedure (craniotomy/craniectomy) for which a portion of the skull has been removed resulting in exposure of the dura/brain and require drainage of fluid.