Method and apparatus for non-invasive measurement of changes in intracranial pressure
US6761695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Jul 28, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for measuring intracranial pressure. In one embodiment, the method comprises the steps of generating an information signal that comprises components (e.g., pulsatile changes and slow changes) that are related to intracranial pressure and blood pressure, generating a reference signal comprising pulsatile components that are solely related to blood pressure, processing the information and reference signals to determine the pulsatile components of the information signal that have generally the same phase as the pulsatile components of the reference signal, and removing from the information signal the pulsatile components determined to have generally the same phase as the pulsatile components of the reference signal so as to provide a data signal having components wherein substantially all of the components are related to intracranial pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.