Hello, dear Experts!
Currently I am developing educational system for pupils\students that can reads different biosignals such as: EMG, ECG, PPG, EEG. It is not medical system, only for visualisation signals for educational needs.
I have a question about connection of my system to Personal Computer (PC). Due to some parts of sensors have direct electrical connection to the human body, I must provide corresponding level of safety: 2xMOPP (corresponding to IEC 60601).
Configuration of my system is following: there is a special module (Hub), that connects to PC throw USB-cable. Galvanic isolation of this module from PC consists of two components:
1) ADUM4160BRIZ for isolated USB-communication between my Hub and PC. It provides 2xMOPP by IEC60-601 (as I right understand, at voltage grater than 250 Vrms)
2) REM1-0505S for power supply of my Hub and sensors from PC. It provides 2xMOPP at 250 Vrms by IEC60-601 .
All my sensors (ECG, EMG,...) has direct electrical connection to Hub (no additional galvanic isolation in this modules) and connected directly to human body.
By attached files I am sending You photos of system (Hub with connected ECG-module) and Hub.
Is this configuration enough to provide safe utilization of my system, during it connected to PC? Can this system brings to user elecric shock from PC?
Also, I have a question concerning selection of the case of the hub and connectors of the biosignal sensor to the hub device.
Now 3.5 mm stereo jack connectors are used for connection between sensors and hub, but as I was told it must be replaced with more specific connnectors (see "First variant" and "Second Variant" pictures in attached files).
Is it right connectors? And should I replace female miniUSB to female USB Type B in order to prevent user touching the open metal parts?
Thank You in advance!
Currently I am developing educational system for pupils\students that can reads different biosignals such as: EMG, ECG, PPG, EEG. It is not medical system, only for visualisation signals for educational needs.
I have a question about connection of my system to Personal Computer (PC). Due to some parts of sensors have direct electrical connection to the human body, I must provide corresponding level of safety: 2xMOPP (corresponding to IEC 60601).
Configuration of my system is following: there is a special module (Hub), that connects to PC throw USB-cable. Galvanic isolation of this module from PC consists of two components:
1) ADUM4160BRIZ for isolated USB-communication between my Hub and PC. It provides 2xMOPP by IEC60-601 (as I right understand, at voltage grater than 250 Vrms)
2) REM1-0505S for power supply of my Hub and sensors from PC. It provides 2xMOPP at 250 Vrms by IEC60-601 .
All my sensors (ECG, EMG,...) has direct electrical connection to Hub (no additional galvanic isolation in this modules) and connected directly to human body.
By attached files I am sending You photos of system (Hub with connected ECG-module) and Hub.
Is this configuration enough to provide safe utilization of my system, during it connected to PC? Can this system brings to user elecric shock from PC?
Also, I have a question concerning selection of the case of the hub and connectors of the biosignal sensor to the hub device.
Now 3.5 mm stereo jack connectors are used for connection between sensors and hub, but as I was told it must be replaced with more specific connnectors (see "First variant" and "Second Variant" pictures in attached files).
Is it right connectors? And should I replace female miniUSB to female USB Type B in order to prevent user touching the open metal parts?
Thank You in advance!