System and method for detecting venous needle dislodgement
US12296083B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Dec 17, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extra-corporeal circuit is disclosed, which includes establishing an acoustic wave resonance across a transverse dimension of at least a portion of a line associated with the extra-corporeal circuit through which the fluid flows, monitoring a phase signal of the resonant acoustic wave, and identifying occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from the expected fluid flow signature. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.