METHOD AND DEVICE FOR MEASURING PARAMETERS OF CARDIAC FUNCTION
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United States of America Patent
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Issued Date -
May 13, 2010
app pub date -
Jan 22, 2008
filing date -
Jan 26, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A full tube is closed in a closing station of a tube filling machine by forming a welded joint, and the closed tube is then tested in terms of the tightness thereof. In order to do so, sound wave energy is introduced into the welded joint, and the sound wave that penetrates the welded joint is detected and is compared with a reference sound wave. The tube is classified as faulty if the detected sound wave deviates from the reference sound wave by more than a predetermined measure.
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