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.
The Gateway is a receiver, forwarding the data to cosinuss° Health, a cloud server. One Gateway is able to receive data from several c-med° alpha devices.
cosinuss° Health is the cloud server solution from cosinuss° that stores all data and enables access to it. It is also providing different view possibilities of the gathered data, starting from an overview of all monitored patients, to a daily view of a selected patient to a detailed view of each data point of a selected patient and time interval.
cosinuss° Health Web is the web application for the cloud server which enables access to, and analysis of the acquired data. Interface to HL7 Fire and other server interfaces available.
Vital signs data: Body temperature, pulse rate, blood oxygen saturation.
Contextual data: Photoplethysmogram (all colors: red, infrared and green PPG), quality indicator for pulse rate, perfusion index of SpO2 measurement and 3-axis acceleration data of the head .
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 an MTK test 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.
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 the use of ‘Schülke mikrozid® AF liquid’ as an alcohol-based cleaning agent. Alternatively, any other disinfectant with the following composition can be used: 35% (w/w) 1-propanol, 25% (w/w) ethanol or a disinfectant with maximum 60% alcohol, no fragrances, undiluted application.
If you measure continuously every second, the battery will last up to 12 hours.
If you decide to measure in cycles for a few minutes every defined time period, it can significantly increase the battery life time to up to several days.
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.
If you use the Gateway and send the data to the cosinuss° Health cloud, you have access through your cosinuss° Health account. In there, you can view as well as download all gathered data as well or transfer it automatically via one of the available interfaces.
Yes, the cosinuss° Health system allows integration into any hospital data environment.
Yes, this is possible as well.
No, everything is pseudonymised with hash ID’s, e.g. a patient’s ID could be V4D9.
You can easily assign or reassign devices to patients inside your cosinuss° Health account.
10 meters, defined by the Bluetooth connectivity.
Yes, it stores data until it is uploaded to the server.
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, you can download them directly as csv data files or via Rest API.
You can also transfer the data via the Fire HL7 interface.
Yes, using the cosinuss° LabApp, you are able to update your c-med° alpha if an update is available.
Yes. In your cosinuss° Health account you will see a ‘New Release’ button close to your Gateways if updates are available.