NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY (NTNU)
发明人:
TORP, HANS,HERGUM, TORBJORN
申请号：
CA3032236
公开号：
CA3032236A1
申请日:
2017.08.04
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
A system (1) for monitoring blood flow in a patient (5) comprises a first unit (2) having an ultrasound transducer and a fastener for fastening the unit to the patient. A controller subsystem comprises the first unit (2) and a separate second unit (3, 4). The controller subsystem (2, 3, 4) is configured to: control the ultrasound transducer to transmit plane-wave pulses into the patient (5) in a propagation directionsample reflections of the plane-wave pulses, received at the ultrasound transducer, from a region (13) within the patient (5), to generate pulse-Doppler response signals and process the pulse-Doppler response signals to estimate a series of values, over time, of a measure proportional, but not equal, to the total blood volume flow passing through the region (13). A monitoring subsystem (3, 4) is configured to monitor the series of values over time and to generate a signal if a set of one or more of the values satisfies a predetermined criterion.
