Adaptive inverse control of pressure based ventilation
US6557553B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The adaptive control method for controlling pressure based ventilation utilizes a specific regulator structure designed according to a linear model of the patient/ventilator system. The same model is also used to derive a real time estimate of patient airway resistance, lung compliance, and the connecting tube compliance. These estimates are used to adjust regulator parameters in real time such that closed loop dynamics quickly approach those of a specified system. In the patient/connecting circuit system, G(s) inlet flow and circuit pressure are fed to a parameter estimator, and the output of the parameter estimator is used to adjust the parameters of the compensator, C(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.