Dynamic HQ for closed loop control
US11376419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Oct 17, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of controlling a blood pump having a predefined hydraulic performance including at least from the group consisting of estimating and measuring an instantaneous flow rate during operation of the blood pump at a predetermined rotational speed of an impeller of the blood pump, the instantaneous flow rate including a plurality of flow rate data points. The plurality of flow rate data points define a trajectory around at least one from the group consisting of an operational point of a predefined pressure-flow curve associated with the predetermined rotational speed of the impeller of the blood pump and a target operational point of a target pressure-flow curve different than the predefined pressure-flow curve. The predetermined rotational speed of the impeller is adjusted until the plurality of flow rate data points define a predetermined trajectory around at least one of the operational point and the target operational point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.