A process and apparatus is disclosed for effective home monitoring of uterine contractions of a pregnant woman, in order to provide early warning signs of possible premature birth. Using a transducer of known type, uterine contractions are monitored continuously over a period of time. An electrical signal...http://www.google.de/patents/US5042503?utm_source=gb-gplus-sharePatent US5042503 - Process and apparatus for extended, non-invasive monitoring of uterine contractions
