Patent ID: 8814806
Filing Date: 2014-08-26
Classification: A61B,A61M

Abstract:
1. A device for determining a flow condition in a respiration system, the device comprising: a valve arrangement with a valve disk and with a valve body with a valve seat, the valve disk being connected to the valve body to define a nonreturn valve with flow passing through the nonreturn valve in a flow direction of the nonreturn valve with movement of a portion of said valve disk relative to the valve seat by a distance that is a function of a flow quantity through the valve arrangement and blocking flow through the nonreturn valve in a flow blocking direction with the valve disk seated on the valve seat; a fluid flow quantity detector comprising: a fluid flow direction detector comprising a contact element on one of said valve element and said valve seat and contact makers on another of said valve element and said valve seat for electrically detecting a position of said valve disk in relation to said valve seat whereby a direction of flow is determined based on whether the valve disk is seated on the valve seat or not; and an indicator for indicating a flow quantity and a direction of flow from the position of said valve disk in relation to said valve seat detected by said fluid flow quantity detector and said fluid flow direction detector.