Device and method for monitoring access to a patient, in particular access to vessels during extracorporeal blood treatment
US8177736B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2006 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a device and to a method for monitoring access to vessels during extracorporeal blood treatment. The invention forms a loop in the arterial and/or venous line and provides device for fixing a section of the line in a loop. When the line is stressed under tension, the loop contracts and the line finally kinks. The modification of the diameter of the line and the formation of a kink in the line leads to a rise of pressure in the line, which is monitored by a pressure monitoring device. If the pressure exceeds a predetermined threshold value, the aspirating cannula is in danger of slipping out of the vessel access or has partially or completely slipped out, thus allowing the threshold value to be determined for alarms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.