Surgery – Diagnostic testing – Via monitoring a plurality of physiological data – e.g.,...
Reexamination Certificate
2006-01-10
2006-01-10
Nasser, Robert L. (Department: 3736)
Surgery
Diagnostic testing
Via monitoring a plurality of physiological data, e.g.,...
C600S300000, C600S481000
Reexamination Certificate
active
06984207
ABSTRACT:
Passive Physiological monitoring apparatus and method have a sensor for sensing physiological phenomenon. A converter converts sensed data into electrical signals and a computer receives and computes the signals, and outputs computed data for real-time interactive display. The sensor is a piezoelectric film of polyvinylidene fluoride. A band-pass filter filters out noise and isolates the signals to reflect data from the body. A pre-amplifier amplifies signals. Signals detected include mechanical, thermal and acoustic signatures reflecting cardiac output, cardiac function, internal bleeding, respiratory, pulse, apnea, and temperature. A pad may incorporate the PVDF film and may be fluid-filled. The film converts mechanical energy into analog voltage signals. Analog signals are fed through the band-pass filter and the amplifier. A converter converts the analog signals to digital signals. A Fourier transform routine is used to transform into the frequency domain. A microcomputer is used for recording, analyzing and displaying data for on-line assessment and for providing realtime response. A radio-frequency filter may be connected to a cable and the film for transferring signals from the film through the cable. The sensor may be an array provided in a MEDEVAC litter or other device for measuring acoustic and hydraulic signals from the body of a patient for field monitoring, hospital monitoring, transport monitoring, home, remote monitoring.
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Cheung Ken C. K.
Pernambuco-Wise Paul
Sullivan Christopher J.
Sullivan Patrick K.
Fulwider Patton Lee & Utecht LLP
Hoana Medical, Inc.
Mallari Patricia
Nasser Robert L.
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