SYSTEMS AND METHODS FOR IMPROVED PHYSIOLOGICAL MONITORING

• Main Authors: NAGARKAR, Kaustubh Ravindra, HUBER, William Hullinger, COUTURE, Aaron Judy, ATALLA, Ashraf Said, ASHE, Jeffrey Michael
• Format: Patent
• Language: English; French; German
• Published: 18.10.2017
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DIAGNOSIS; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; MEDICAL OR VETERINARY SCIENCE; METERING BY VOLUME; PHYSICS; SURGERY; TESTING

A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.