You might be interested in the normal physiology of cerebrospinal fluid [0] and the disease hydrocephalus [1] that occurs when there is a blockage in the normal

You might be interested in the normal physiology of cerebrospinal fluid [0] and the disease hydrocephalus [1] that occurs when there is a blockage in the normal flow path. As a treatment for hydrocephalus, bypass shunts (made of tubing) are installed inside the skull that create a relief path for the fluid to flow. Unfortunately, they often get clogged with cells due to various scar formation and immune reactions -- designing better shunts is an active area of biomaterials research, and it's quite possible that an external pump could be an upgrade (though we first have to show that it has benefit...). [0]: https://en.wikipedia.org/wiki/Cerebrospinal_fluid https://en.wikipedia.org/wiki/Cerebrospinal_fluid [1]: https://en.wikipedia.org/wiki/Hydrocephalus https://en.wikipedia.org/wiki/Hydrocephalus