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1. DE000019606687 - Verfahren und Vorrichtung zur Messung des intracraniellen Druckes in einem Schädel eines Probanden

Office
Germany
Application Number 19606687
Application Date 22.02.1996
Publication Number 000019606687
Publication Date 28.08.1997
Publication Kind A1
IPC
A61B 5/03
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
03Measuring fluid pressure within the body other than blood pressure, e.g. cerebral pressure
A61B 5/0402
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
04Measuring bioelectric signals of the body or parts thereof
0402Electrocardiography, i.e. ECG
CPC
A61B 5/053
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
053Measuring electrical impedance or conductance of a portion of the body
A61B 5/0205
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
A61B 5/031
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
03Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; ; Measuring pressure in body tissues or organs
031Intracranial pressure
A61B 5/4884
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
48Other medical applications
4884inducing physiological or psychological stress, e.g. applications for stress testing
Applicants NICOLET BIOMEDICAL INC
Inventors PAULAT KLAUS PROF DR
Title
(DE) Verfahren und Vorrichtung zur Messung des intracraniellen Druckes in einem Schädel eines Probanden
Abstract
(EN)

The invention concerns a method and device for measuring the intracranial pressure in the skull of a test subject, at least two electrodes (1, 2) being fastened on the skull such that they are in electrical contact therewith. The time lapse of an electrical resistance and/or a capacitance between the two electrodes (1, 2) is/are produced as an electrical signal (p(t)) via a measuring arrangement (10). An extreme value of the electrical signal, which value follows a blood pressure maximum corresponding to a systole with a substantially constant delay, is determined as the first amplitude value. A second amplitude value is produced from the electrical signal (p(t)). This value is taken at the point where the electrical signal has either a maximum or a point of inflection the first time after the first amplitude value. A third amplitude value is produced from the electrical signal after the second amplitude value. A standardized pressure measured value is produced from the amplitude values for further use. This type of measurement enables the intracranial pressure of a test subject to be determined in a simple, rapid and economical manner and permits observation for a relatively long period of time without thereby causing stress to the test subject.

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