Inversion-based feed-forward compensation of inspiratory trigger dynamics in medical ventilators
US8794234B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/505
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ventilator and method of ventilator control. The ventilator includes a pneumatic system for providing and receiving breathing gas, and a controller operatively coupled with the pneumatic system. The controller employs closed-loop control to provide positive breathing assistance to a patient. Supplemental feed-forward compensatory assistance is also provided, in addition to and independently of that commanded by the closed-loop control. The supplemental assistance may be determined, set or selected based on a ventilator parameter and/or an operator parameter, and/or as an automatic ongoing compensatory mechanism responding to varying patient respiratory demand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.