
EMC design for intracranial pressure monitors prioritizes input protection and isolation. The probe signal input should utilize high-insulation-strength medical connectors, and a protection network should be installed at the circuit board entry point. This network may include high-voltage resistors, low-leakage-current TVS (e.g., SMF series), and filter capacitors to handle high-voltage pulses such as those from defibrillation. The signal amplification circuit should be housed in a shielded enclosure, and an isolation amplifier should be used to isolate the patient connection from subsequent circuitry. The entire power supply should utilize an isolated DC-DC module. The device casing must be reliably grounded, and all non-isolated external interfaces (e.g., USB for data export) must use medical-grade isolators or high-level ESD protection devices.