Dynamic pressure response system and method for measuring residual fluid
US12128188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2021 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments disclosed herein are directed to a dynamic pressure response drainage system including control logic configured to enable measuring of residual fluid disposed within the drainage lumen. The residual fluid volume is measured by detecting the magnitude of the dynamic pressure response in the system containing the residual fluid when a sudden displacement (e.g. increase or decrease) of air volume occurs inside the system. The pressure burst magnitude is related to the pressure needed to move the mass of fluid, thus the fluid volume can be calculated from measurements of the burst pressure. The magnitude of the measured air pressure exhibits a dynamic pressure response corresponding to the mass of fluid in the tube. Either positive or negative pressure bursts can be used to produce and measure the corresponding positive or negative dynamic response spike pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.