Digital external ventricular drain with integrated intracranial pressure monitor and cerebral spinal fluid monitor/pressure regulator

A device comprising:

• a dependent closed pressure vessel adapted to fluidly couple to an independent closed pressure vessel and adapted to collect fluid from the independent closed pressure vessel;
• a computing device;
• a pressure sensor operatively coupled to the computing device and adapted to monitor pressure in the independent closed pressure vessel and in the dependent closed pressure vessel, adapted to generate raw pressure measurement data from the monitored pressure and adapted to provide the raw pressure measurement data to the computing device;
• and
• a flow/pressure sensor downstream of the pressure sensor, with the dependent closed pressure vessel extending between the pressure sensor and the flow/pressure sensor, and operatively coupled to the computing device and adapted for monitoring multidirectional rate of flow of fluid between the independent closed pressure vessel and the dependent closed pressure vessel, adapted for measuring a volume of fluid flowing from the independent closed pressure vessel, adapted to generate raw data from which a rate of flow and a volume measurement data are determined, and adapted to provide the rate of flow and volume measurement data to the computing device;
• wherein the computing device is adapted to generate a pressure set point signal in response to the raw pressure measurement data, adapted to generate a rate of flow set point signal in response to the rate of flow measurement data, and adapted to generate a volume set point signal in response to the volume measurement data,
• the device further comprising a pressure/flow regulator valve operatively coupled to the computing device and adapted to adjust pressure in the dependent closed pressure vessel in response to the pressure set point signal, adapted to adjust the rate of flow of fluid between the independent closed pressure vessel and the dependent closed pressure vessel in response to the rate of flow set point signal, and adapted to adjust the rate of flow of fluid between the independent closed pressure vessel and the dependent closed pressure vessel in response to the volume set point signal.