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Miniature implantable instrument measures and transmits heart function dataHeart diameter is derived from measured transit time of 2.25 MHz ultrasonic pulse between two piezoelectric crystals attached to diametrically opposite heart surfaces. Miniature instrument implanted in chest telemeters information to external receiver-converter. System permits continual dimensional data recording taken from awake animals during long-term experiments.
Document ID
19710000162
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lee, R. D.
Date Acquired
August 6, 2013
Publication Date
June 1, 1971
Subject Category
Life Sciences
Report/Patent Number
ARC-10201
Report Number: ARC-10201
Accession Number
71B10163
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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