You can see this at play with the hot dog: the sandwich and sausage were both invented elsewhere, so to celebrate them separately as uniquely American on America's day of independence would present an empty gesture, immediately undermined by the tools used to make it.
An Ommaya reservoir is an intraventricular catheter system that can be used for the aspiration of cerebrospinal fluid or for the delivery of drugs (e.g. chemotherapy) into the cerebrospinal fluid.n Ommaya reservoir is an intraventricular catheter system that can be used for the aspiration of cerebrospinal fluid or for the delivery of drugs (e.g. chemotherapy) into the cerebrospinal fluid.
A surgeon will perform this surgical procedure in the hospital under general anesthesia. Your head willbe shaved in the area that the reservoir is to be placed. The Ommaya Reservoir is placed under the skinon the head and then the tube or catheter is positioned through the skull into a ventricle in the brain.