Ultrasonic system for detection of sÈnico level in reservoirs of blood for extracorporeal circulation automation.

摘要

"Ultrasonic system su00c8nico detection level in reservoirs of blood for automation of extracorporeal circulation, which comprises a unit level, a unit of measurement, control and performance.And a power source; and a detection unit level is composed of ultrasonic transducers (transmitter and receiver), transmission circuits.The reception circuits and circuits for detection; the unit of measurement, control and actuation includes a microcontroller, memory RAM and EPROM, support and control logic circuits.The circuits of measurement and actuation, display.Keys for selection of parameters located on the panel of the equipment and serial interface; the unit of the detection level requires DC voltage of + 10V and - 10V for feeding of the circuits DAnd the transmission, reception and detection; the unit of measurement, control, and performance for its time, uses DC + 5V for the feeding of digital circuits (MCU,Memories and logic circuits in support and control) and + 5V, + 10V.- 10V and + 225v to other circuits of the unit; the unit of the detection level has the function of the detection of the blood level in the reservoir of the oxygenator through the use of two transdutoreS of ultrasound (transmitter and receiver) that are placed at the top of the reservoir, this unity, in addition to the above transducers includes circuits of transmission, reception and detection.