METHOD AND DEVICE FOR NON-INVASIVE DETERMINATION AND/OR CONTROL OF INTRACRANIAL COMPLIANCE Russian patent published in 2024 - IPC A61B8/08 

FIELD: medicine.

SUBSTANCE: group of inventions relates to a method and device for non-invasive determination and/or control of intracranial compliance of biological material. When performing the method, acoustic spectroscopy of the biological material is carried out using the first means. The biological material is a human or animal skull. Several acoustic transmission signals of varying frequencies and/or amplitudes are emitted into the biological material using an acoustic signal transmission device. After their passage through the biological material, the corresponding transmitted and reflected acoustic received signals of various frequencies and/or amplitudes are received using an acoustic signal receiving device. The acoustic transmitted signals are compared with the corresponding received acoustic signals using a comparative analytical device. The characteristic n-dimensional function and signal transit time values are determined for the biological material. The elongation of the biological material is determined using a second means. The linear and/or volumetric stretch of the biological material is measured using a measuring device. The intracranial compliance of the biological material is determined based on the comparisons and measurements performed using a data processing unit. Acoustic spectroscopy and/or determination of the stretch of biological material is performed in the direction of the frontal plane of the skull directly above the external auditory canal. The device contains a first means, a comparative analytical device, a second means, and a data processing unit. The first means includes an acoustic signal transmitting device and an acoustic signal receiving device. The second means includes a measuring device for measuring linear and/or volumetric stretch of the biological material.

EFFECT: use of a measuring segment with the highest possible amount of cerebrospinal fluid is ensured, the result of a physically measured change in the stretch of biological material is taken into account, which makes it possible to maximize the intensity of sound characterizing the areas of the intracranial system due to minimal suppression of acoustic waves in it, and thereby to increase the accuracy of determining intracranial compliance.

12 cl, 6 dwg