Phase I of this Integrated Physiological Monitoring System includes core body and skin temperature sensors. Phase 2, a heart rate sensor, is scheduled for release in late 2004. Sensors to monitor other physiological parameters are under development.
How the System Works
Core body temperatures are obtained from ingestible and, of course, disposable, JonahTM core temperature sensors, which are contained in a capsule about the size of a multi-vitamin. Jonah only weighs 1.6 grams.) Once activated and swallowed, transmission begins immediately. Data are transmitted telemetrically to the VitalSense Monitor, which can be worn in a waist pack or slipped into a pocket. The mean transit time for the capsules is 2.0 1.5 days.
Dermal temperatures are transmitted from waterproof, hypoallergenic patches. Transmission range is approximately 1 meter for the ingestible sensor and 2 meters for the patches. The patented redundant transmission scheme for the sensors significantly decreases the number of lost data points. Accuracy is 0.1 C with 0.01 C resolution.
In the normal mode, each VitalSense monitor can track and record data from up to 10 sensors that have been associated with the monitor, while rejecting signals from other sensors that may be within range. When it is in Medic ModeTM the monitor will detect and record signals from any VitalSense sensor that is within reception range. Origin
VitalSense was designed at the request of, and in partnership with, the
United States Army Research Institute of Environmental Medicine to support the US Army's Warfighte
Contact: John Breeden
Mini Mitter Co., Inc.