Device for supplying a patient with breathing gas and process for regulating a respirator

US8627820B2 · kind B2 · utility

Assignee

• Draeger Medical GmbH · DE

Inventors

• Hans Matthiessen · Bad Schwartau, DE
• Dieter Weismann · Gronau, DE
• Marcus Eger · Stade, DE

Key dates

• Filing date: May 29, 2007
• Grant date: Jan 14, 2014
• Expiry date: Nov 8, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2016/0033
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device for supplying a patient with breathing gas, in which an initially high initial pressure Paw(t=0) applied from the outside is automatically lowered by means of a control circuit to a lower inspiratory pressure Paw(t) as soon as a pulmonary internal pressure Plung(t) threatens to exceed a predetermined pulmonary target pressure Plung,soll. Overinflation of the lungs due to the respiration is thus ruled out according to the present invention. The device permits, moreover, rapid filling of the lungs with breathing gas and makes thus possible a comparatively long phase of expiration. A process is also provided for regulating a respirator and for respirating a patient.