Patent ID: 7032592
Filing Date: 2006-04-25
Classification: A61M

Abstract:
1. In a ventilator system having a tubing system adapted for connection at a distal end to a patient, said tubing system including a respiratory part having an expiratory part, the improvement of a dosing device for adding a dry additive gas into breathing gas in said tubing system, comprising: a dosing tube connectable to said tubing system and having a first end adapted for connection to a source of dry additive gas and a second end for dosing said dry additive gas into said breathing gas at said distal end of said tubing system; and said dosing tube comprising a tube section between said first and second ends and disposed in said expiratory part, said tube section having a moisture permeable contact surface adapted for interaction with moisture from exhaled breathing gas in said expiratory part and for interacting with said dry additive gas for humidifying said dry additive gas before dosing of said additive gas at said distal end of said tubing system.