FIELD: medicine.
SUBSTANCE: simulator for conducting surgical operations on vessels includes an electric power source, a system of tubes, taps, an electric hydraulic pump of one-way action, installed with the possibility of providing movement of liquid through the system of tubes, a buffer tank and a model of blood vessels made of a biological or synthetic material and connected to a system of tubes through taps. Additionally, there is a rectangular pulse generator and a pulse-width modulation controller connected to an electric hydraulic pump with the possibility of creating pulse movement of liquid with controlled pressure. Potentiometer is connected to the pulse-width modulation regulator, and the potentiometer of the square pulse generator is connected to the square pulse generator. Pressure gauge is used to measure pressure in the pipe system. Indicator light-emitting diode is used for pulse frequency monitoring and is connected to a square-wave generator.
EFFECT: possibility of changing the frequency of fluid current pulses during training, that is, to simulate change in blood pressure, as well as the ability to track indicators by LED indication.
1 cl, 1 dwg
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