| 摘要 |
PCT No. PCT/EP97/00815 Sec. 371 Date Jan. 19, 1999 Sec. 102(e) Date Jan. 19, 1999 PCT Filed Feb. 20, 1997 PCT Pub. No. WO97/30630 PCT Pub. Date Aug. 28, 1997In order to detect the intra-cranial pressure in the skull of a test subject it is proposed to attach to the skull at least two electrodes in such a way that they have an electrical contact with the skull. Via a measuring device, the time curve of an electrical resistance and/or of a capacitance between the two electrodes is obtained as an electrical signal (p(t)). An extreme value of the electrical signal, following a blood pressure maximum according to a systole with a substantially uniform delay, is determined as a first amplitude value. A second amplitude value is obtained from the electrical signal (p(t)). This value is accepted at a point where the electrical signal has for the first time after the first amplitude value either a maximum or a turning point. A third amplitude value is obtained from the electrical signal after the second amplitude value. A standardized pressure measurement value is obtained from the amplitude values for further utilization. By means of this type of measurement it is possible to establish the intra-cranial pressure of a test subject in a simple, rapid and cost-effective manner, and to observe it even over lengthy periods, without thereby stressing the test subject.
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