Electroencephalograph (EEG)
An electroencephalograph records the electrical activity of the brain through electrodes on the scalp. It is used in neurology departments, epilepsy units, sleep laboratories and intensive care, often together with EMG and evoked potential equipment.
Common types
- Routine EEG system: 16 to 32 channels for outpatient recordings.
- Video EEG system: synchronised video for long term epilepsy monitoring.
- Ambulatory EEG: a portable recorder worn at home.
- EMG and evoked potential system: measures nerve conduction and muscle responses.
- Polysomnography system: combines EEG with breathing and oxygen channels for sleep studies.
What to tell us when you ask for a quotation
- Number of EEG channels and polygraphic channels.
- Sampling rate and analysis software.
- Video camera, photic stimulator and number of review stations.
- Electrode caps or cup electrodes and quantities.
- EMG and evoked potential modules if needed.
- Quantity, destination country and the delivery terms you want (for example EXW, FOB or CIF).
Documents to ask for
Buyers ask for CE marking under the EU MDR or US FDA clearance, destination country registration, ISO 13485 for the maker and IEC 60601-1 with IEC 80601-2-26 for EEG (which replaced IEC 60601-2-26 in 2019) or IEC 60601-2-40 for EMG and evoked response equipment.
Certificates and registrations belong to the product and its manufacturer. We check them with you against the rules of your market before any order.
Can routine EEG and EMG be done on one system?
Some systems combine both on one platform with separate amplifiers and software. A combined unit saves space, but busy departments often keep separate systems so each can run at the same time.
Send us the specification and quantity. We compare manufacturers in China and reply with options, lead times and the documents that come with each product. NJMC sources and checks; it does not manufacture.