ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,152, issued on March 11.
"Apparatus for measuring pressure within a shunt" was invented by Vias Demetriou (Newcastle-upon-Tyne, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for measuring pressure of fluid in a shunt includes a distensible member arranged adjacent to a graduated scale. The shunt includes a shunt valve and the apparatus is attachable to, or incorporated into the shunt at a location either at the shunt valve or upstream of the shunt valve. Both the distensible member and the scale include radiopaque markers. The fluid in the shunt acts directly on the distensible member and the distensible member is disten...