ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,004, issued on Sept. 23, was assigned to IRASUN GMBH (Munich).

"System for vacuum-assisted venous drainage (VAVD)" was invented by Fabian Konig (Unterfohring, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a system for vacuum-assisted venous drainage (VAVD), comprising at least one pressure regulation module, at least one active pressure regulating valve having at least one supply line and at least one discharge line, wherein further at least one pressure sensor is provided such that the pressure in the region of the pressure regulating valve can be monitored and an actual pressure value can be detected, an...