Surgery – Diagnostic testing – Respiratory
Reexamination Certificate
2005-03-01
2005-03-01
Nasser, Robert L. (Department: 3736)
Surgery
Diagnostic testing
Respiratory
C600S538000, C128S204230
Reexamination Certificate
active
06860858
ABSTRACT:
A method and apparatus that provides an expert system for determining respiratory phase during ventilatory support of a subject. Discrete phase states are partitioned and prior probability functions and observed probability functions for each state are defined. The probability functions are based upon relative duration of each state as well as the flow characteristics of each state. These functions are combined to determine phase probabilities for each state using Bayes' theorem. The calculated probabilities for the states may then be compared to determine which state the subject is experiencing. A ventilator may then conform respiratory support in accordance with the most probable phase. To provide a learning feature, the probability functions may be adjusted during use to provide a more subject specific response that accounts for changing respiratory characteristics.
REFERENCES:
patent: 4448192 (1984-05-01), Stawitcke et al.
patent: 4915103 (1990-04-01), Visveshwara et al.
patent: 5513631 (1996-05-01), McWilliams
patent: 6230708 (2001-05-01), Radko
patent: 6318365 (2001-11-01), Vogele et al.
patent: 6626176 (2003-09-01), Madaus et al.
patent: 6629527 (2003-10-01), Estes et al.
patent: 0956877 (1999-11-01), None
patent: WO 9308857 (1993-05-01), None
patent: WO 9812965 (1998-04-01), None
patent: WO 0119440 (2001-03-01), None
Bassin David John
Green Paul Anthony
Gottlieb Rackman & Reisman
Nasser Robert L.
ResMed Limited
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