Method and device for monitoring a vascular access and extracorporeal blood treatment device comprising a device for monitoring vascular access
US9452252B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Apr 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/1781
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method and a device for monitoring a vascular access during an extracorporeal blood treatment. The method and the device according to the invention are based on the monitoring of the difference between the venous pressure measured by a venous pressure sensor and the arterial pressure measured by an arterial pressure sensor (in the extracorporeal blood circuit. According to the method and the device according to the invention, a test function describing disturbances in the extracorporeal blood circuit is determined. Said test function is used to determine a noise-free differential pressure from the measured venous and arterial pressure, said differential pressure being evaluated in an arithmetic and evaluation unit to identify a defective vascular access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.