Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2002-10-14
2008-08-05
Nasser, Jr., Robert L. (Department: 3735)
Surgery
Diagnostic testing
Cardiovascular
C600S481000
Reexamination Certificate
active
07407486
ABSTRACT:
The invention concerns a method and an apparatus for monitoring a condition of a patient under anesthesia or sedation. For this purpose there is a sensor for acquiring a signal that represents peripheral cardiovascular flow in the patient. Successive heart beat pulses are detected and predetermined pulse wave parameters are measured repeatedly in said signal, and predefined pulse wave parameters within said heart beat pulses are measured, too. At first, said predetermined pulse wave parameters in a number of successive heart beat pulses are compared in respect to possible occurrence of a substantial alteration. At second, if the alteration is noticed, a statistical reference value is calculated by deriving values from at least said predefined pulse wave parameters, and the change(s) between at least one predefined pulse wave parameter and said reference value is quantified. The results and/or intermediate results are finally displayed and/or recorded.
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Huiku Matti Veli Tapani
Jousi Mikko Oskari
Korhonen Ilkka
Lötjönen Jyrki Mika Petteri
Van Gils Marcus Johannis
Andrus Sceales Starke & Sawall LLP
GE Healthcare Finland Oy
Nasser Jr. Robert L.
Toth Karen E
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