Table 2 Expert judgments for each basic event.
Symbol | Events | Symbol | Events | Symbol | Events |
|---|---|---|---|---|---|
BE1 | Power switch key malfunction | BE15 | ECG signal processing module failure | BE29 | Oxygen Clip Electrode Failure |
BE 2 | Main control board failure | BE16 | Faulty connection between the ECG signal acquisition lead wire and the ECG signal measurement module | BE30 | Torn sphygmomanometer cuff |
BE 3 | Power switch to keypad connection failure | BE17 | Faulty connection between the ECG signal measurement module and the main control board | BE31 | Amplifier Failure |
BE 4 | Battery failure | BE18 | SPO2 signal measurement module failure | BE32 | Alarm system failure |
BE 5 | Faulty connection between the battery interface board and the power board | BE19 | Faulty connection between the SPO2 signal acquisition extension cable and SPO2 signal measurement module | T | Multi-parameter monitor failure |
BE 6 | Power control failure | BE20 | Faulty connection between the SPO2 signal measurement module and the main control board | M1 | Power-on failure |
BE7 | Faulty connection between the keypad and the main control board | BE21 | NIBP signal acquisition air leak in the airway | M2 | Power supply module failure |
BE8 | Faulty connection between the power board to main control board failure | BE22 | Air pump failure | M3 | Display failure |
BE9 | Display malfunction | BE23 | Faulty connection between the NIBP signal acquisition tube and NIBP signal measurementmodule | M4 | EEG signal module failure |
BE10 | Backlight failure | BE24 | NIBP signal acquisition guide tube bent and blocked | M5 | SPO2 signal module failure |
BE11 | High-voltage board failure | BE25 | Faulty connection between the NIBP signal measurement module and main control board | M6 | NIBP signal module failure |
BE12 | Faulty connection between the Display screen and main control board | BE26 | Solenoid valve blocked | M7 | Solenoid valve failure |
BE13 | Faulty connection between the display screen and backlight board | BE27 | Circuit board failure | M8 | External sensor failure |
BE14 | Digital video interface failure. | BE28 | ECG Electrode Failure |
