Contactless Bed sensors
The new bed sensor technology is based on the Ballistocardiographic (BCG) principle. When the heart pumps blood there is a recoil effect to the opposite direction. This means that when e.g. lying on a bed, the entire bed will be subject to micro movements due to the blood flow. We use an ultra-sensitive Murata accelerometer to capture this signal. A microcontroller with a specially made algorithms are able to extract heart rate and many other vital signs from the signal.
Contactless bed sensors
The products are component parts of equipment
◾Opens new possibilities in patient monitoring and elderly care in hospitals, assisted living and even at homes
◾Embedded heart and respiration rate and beat-to-beat time signal processing enabling patient monitoring from bed occupancy to condition quality Analysis
The BCG technology is available in 2 different formats/products:
◾A complete BCG-based sensing component that comprises the sensor, microcontroller and a Wi-Fi Transceiver
◾Targeted for software solution- and service providers and OEM system Integrators
◾Solderable PCB module component comprising the sensor and microcontroller
◾Ideal for equipment manufacturers
The BCG module/node outputs vital signs and bed occupancy information such as:
◾Heart rate variability (correlates to stress level)
◾Relative stroke volume (how much blood the heart pumps)
◾Bed status indicator (is the bed empty, is patient in bed, is patient moving in bed)
◾Other information such as timestamp, signal strength etc.