Method and apparatus for continuously monitoring intracranial pressure
US9168023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Jul 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4227
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for continuously measuring the absolute intracranial pressure in a non-invasive manner is described by using an ultrasonic Doppler device which detects the pulsatility indexes of the blood flow inside the eye artery for both intracranial and extracranial eye artery portions. The eye in which the blood flow is monitored is subjected to a small pressure, sufficient to equalize the pulsatility index measurements of the internal and external portions of the eye artery. The pressure at which such equalization occurs is used as a reference for autocalibration of the apparatus so that continuous absolute intracranial pressure measurements may be taken over a particular sampling period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.