Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion
Reexamination Certificate
2011-08-02
2011-08-02
Hindenburg, Max (Department: 3736)
Surgery
Diagnostic testing
Measuring electrical impedance or conductance of body portion
C600S300000, C600S306000, C600S544000
Reexamination Certificate
active
07991462
ABSTRACT:
A method and an apparatus for monitoring a sedated patient, the method comprising the steps of providing a skin conductance signal measured at an area of the patient's skin through a time interval, establishing the existence of at least two fluctuation peaks in the skin conductance signal through said time interval, considering if the amplitudes of fluctuation peaks in the skin conductance signal through said interval, the basal level of the skin conductance signal through said interval and the width of the fluctuation peaks in the skin conductance signal fulfils a predetermined criterion, activating a first output signal which indicates the state of awakening in the patient if said criterion is fulfilled, and activating a second output signal which indicates the state of pain in the patient if said criterion is not fulfilled.
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Storm et al, “Skin conductance with perioperative stress”, Acta Anaesthesiologioca Scandinavia, 2002:46:887-895.
Abel Christian D.
Dougherty Sean P
Hindenburg Max
Med Storm Innovation AS
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