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Rapidly quantifying the relative distention of a human bladderA device and method was developed to rapidly quantify the relative distention of the bladder of a human subject. An ultrasonic transducer is positioned on the human subject near the bladder. A microprocessor controlled pulser excites the transducer by sending an acoustic wave into the human subject. This wave interacts with the bladder walls and is reflected back to the ultrasonic transducer where it is received, amplified, and processed by the receiver. The resulting signal is digitized by an analog to digital converter, controlled by the microprocessor again, and is stored in data memory. The software in the microprocessor determines the relative distention of the bladder as a function of the propagated ultrasonic energy. Based on programmed scientific measurements and the human subject's past history as contained in program memory, the microprocessor sends out a signal to turn on any or all of the available alarms. The alarm system includes and audible alarm, the visible alarm, the tactile alarm, and the remote wireless alarm.
Document ID
19920002403
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Companion, John A.
(NASA Langley Research Center Hampton, VA, United States)
Heyman, Joseph S.
(NASA Langley Research Center Hampton, VA, United States)
Mineo, Beth A.
(NASA Langley Research Center Hampton, VA, United States)
Cavalier, Albert R.
(NASA Langley Research Center Hampton, VA, United States)
Blalock, Travis N.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
October 22, 1991
Subject Category
Aerospace Medicine
Report/Patent Number
Patent Number: US-PATENT-5,058,591
Patent Application Number: US-PATENT-APPL-SN-118993
Patent Number: NASA-CASE-LAR-13901-2
Patent Application Number: US-PATENT-APPL-SN-929869
Patent Application Number: US-PATENT-APPL-SN-358213
Accession Number
92N11621
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,058,591|NASA-CASE-LAR-13901-2
Patent Application
US-PATENT-APPL-SN-118993|US-PATENT-APPL-SN-929869|US-PATENT-APPL-SN-358213
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