Which EMC (electromagnetic compatibility) components are helpful for the design and modification of hemodialysis machines?

EMC (Electromagnetic Compatibility) of hemodialysis machines requires modular design. The drive circuits for motors such as the blood pump and heparin pump should be independent and properly filtered, with shielded wires used for motor wiring. Signal lines from all sensors (pressure, temperature, conductivity, photoelectric) must be shielded and pass through a filtering network (e.g., RC filter) before entering the control board. RC snubbers must be added to both ends of the heater's AC power control (solid-state relay). The entire machine adopts a distributed power architecture, supplying power to the digital board, analog board, and motor drive board separately, with ferrite beads (PBZ series) and TVS diodes at the power input of each board for isolation and protection. All external communication ports are electrically isolated.