The c-med° alpha is an in-ear vital signs sensor that is applied in the outer ear canal of the patient. It continuously acquires several vital signs of the patient and transmits that data via Bluetooth.
Data can be received with a smartphone or tablet using the cosinuss° Health App. The received data is stored on the mobile device and can be exported for further use.
Vital signs data: Body temperature, pulse rate, blood oxygen saturation (SpO2).
Contextual data: Photoplethysmogram, quality indicator for pulse rate, perfusion index of SpO2 measurement.
Pulse rate and SpO2 are measured with the pulse oximetry method using additionally to red/infrared also green PPG.
Body temperature is measured with an infrared sensor pointing at the eardrum (direct measurement).
Quality indicators are calculated based on the measured PPG raw data of the tri-color LEDs as well as the acceleration signals.
The sensors must undergo a measurement check (MTK) once a year, the charging boxes are maintenance-free.
No repair or battery replacement is possible.
Warranty conditions for the c-med° alpha: 24 months from the date of sale to the end customer or other initial commissioning.
24 months from packaging at the manufacturer, Cosinuss GmbH.
Recommended cleaning agents:
Primary recommendation: Schülke mikrozid® AF liquid and wipes;
Alternative: Alcohol-based disinfectant (60 % w/w), no fragrances, undiluted use.
Yes, there are three different sizes of the sensor (in-ear part): S, M & L comparable to head phones.
If you need quick application of the sensor, take size M. In case it doesn’t fit into the ear canal, change to size S.
For studies or longer measurements: In order to find the best size you should conduct test measurements of 3 minutes at rest (no moving, talking, chewing etc). Keep an eye on the quality index which should be above 30 (the higher the better). Also, the perfusion index should be between 0.1 – 2. Change to another size if this is not the stable state.
Yes.
For disinfection and cleaning we recommend primarily Schülke mikrozid® AF liquid and wipes; Alternative: Alcohol-based disinfectant (60% w/w), No fragrances, Undiluted application. For step-by-step cleaning and disinfection instruction, see c-med° alpha IFU.
If you measure continuously every second, the battery will last up to 12 hours.
1 hour.
If you use the c-med° alpha in combination with the °Health App, you can access the data inside the app. You have additionally the possibility to export and share it.
Yes, this is possible as well.
10 meters, defined by the Bluetooth connectivity.
Yes, because it may influence the quality of the measurements. Please make sure to always clean the head of the c-med° alpha properly.
Yes, with IP class 47 it is waterproof up to 30 minutes under water and resistant to the ingress of dust of more than 1 mm.
Measuring quality may decrease generally with movements but especially with movements of the jaw during chewing or talking for example.
Cold wind, direct sunlight, heavy rain. Please cover the sensor and the ear when using it outdoors.
Yes, using the cosinuss° LabApp, you are able to update your c-med° alpha if an update is available.