Method and equipment for analyzing biological signals...

Details Method and equipment for analyzing biological signals... Method and equipment for analyzing biological signals...

2007-01-09

2007-01-09

Marmar, II, Charles A (Department: 3735)

Surgery

Diagnostic testing

Via monitoring a plurality of physiological data, e.g.,...

C600S485000, C600S504000, C600S561000

Reexamination Certificate

active

10484566

ABSTRACT:
A method of analyzing biological pressure signals in a patient including obtaining arterial blood pressure, cerebral blood flow rate and intracranial pressure signals from the patient, and analyzing frequencies of the signals in relation to a range of target frequencies corresponding to at least one of type-B slow waves, infra-B waves and ultra-B waves; and an apparatus for analyzing biological pressure signals in a patient including an acquisition module, located adjacent to the patient and having input channels that receive signals from an arterial blood pressure (ABP) sensor, a cerebral blood flow rate (CBF) sensor, and an intracranial pressure (ICP) sensor; an analysis module that performs frequency analysis of the signals from a target frequency selected from the group consisting of type B slow waves corresponding to a frequency between 8×10−3hertz and 50×10−3hertz, infra-B waves corresponding to a frequency lower than 8×10−3hertz, and ultra-B waves corresponding to a frequency including between 50×10−3hertz and 200×10−3hertz; and an exploitation and display module optionally located adjacent the patient in the form of an equipment unit or a local work station connected to the analysis module by an internal network or be constituted by a remote working station connected to the analysis module by a communication network.

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Hara et al.,Detection of the B Wave in the Oscillation of Intracranial Pressure by Fast Fourier Transform, Med. Inform., vol. 15, No. 2, 1990, pp. 125-131 (XP008001771).
Akay M.,Spatial Mapping of Respiratory Related Evoked Responses Using Wavelet Tarnsform Method, Proc. of the First Joint BMSE/EMBS Conference, Oct. 13, 1999, Atlanta, GA, whole document (XP010357853).

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