Patent ID: 8997741
Filing Date: 2015-04-07
Classification: A61M

Abstract:
1. A respiration system for feeding an anesthetic gas having a density ρ gas , the system comprising: a Y-piece for connection to a patient; a respiration circuit with an inspiration branch and an expiration branch, which extend away from the Y-piece; a branching in the expiration branch; an anesthetic gas discharge valve; a first supply line connected from the branching and leading to the anesthetic gas discharge valve; a reservoir; a second supply line connected from the branching and leading to the reservoir, said second supply line having a cross-sectional area A the anesthetic gas discharge valve comprises a valve body having a mass which is pressed, by means of the effect of gravity, towards the first supply line against a circular-ring-shaped valve seat having a diameter; and the anesthetic gas discharge valve includes a prestressing means for exerting a prestressing force onto the valve body against the effect of gravity, so that the mass and the prestressing force determine a threshold pressure about which the pressure in the first supply line has to lie at least above that on the side of the anesthetic gas discharge valve facing away from the first supply line to open the anesthetic gas discharge valve.