System and method of using frequency analysis to monitor flow rates
US11338076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B13/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for controlling a fluid procedure comprising a reusable separation apparatus controlled by a microprocessing controller. A sterile circuit is configured to associate with the reusable separation apparatus and provide a first fluid flow path in association with a pressure sensor in communication with the controller and a first pump configured to transmit pulsatile pressure signals to the pressure sensor during operation in association with the first fluid flow path. The reusable apparatus and the controller are configured to receive from the pressure sensor pressure signals comprising the pulsatile pressure signals, perform a frequency analysis of the pressure signals received by the pressure sensor over a time duration, derive a first rotation rate of the first pump or a first fluid flow rate at the first pump from the frequency analysis, and provide a response action based on the first rotation rate or the first fluid flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.