Method and device for creating turbulence by pulsating flow
US10449281B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and a device use pulsed flow profiles in the addition of a solution to an extracorporeal circulation to improve the mixing of the added solution with the blood, in particular in regional anticoagulation with citrate. Extracorporeal blood treatment processes are usually carried out with anticoagulation of the blood. In regional anticoagulation with citrate, sometimes a clot is observed in the extracorporeal blood circulation at the point of addition of the calcium infusion solution. If the extracorporeal circulation becomes occluded, the treatment must be interrupted. To prevent this, the method and device add the calcium infusion solution with a pulsed flow profile, with which better mixing is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.