Patent ID: 7686015
Filing Date: 2010-03-30
Classification: A61M,A62B

Abstract:
1. A system for humidifying breathing gas in a ventilation circuit for mechanical ventilation of a patient, comprising: a ventilation circuit for providing a dry breathing gas for mechanical ventilation of a patient; a humidifier cartridge interposed in said ventilation circuit for humidifying said dry breathing gas in said ventilation circuit, said humidifier cartridge including: a heater disposed in relationship with said external heat exchange surface for transferring heat across said external heat exchange surface to a volume of humidification fluid located in said interspace in order to heat said humidification fluid; and a supply of humidification fluid connected to said interspace for introducing said humidification fluid into said interspace, said hydrophobic membrane being operable to transfer humidity through the hydrophobic membrane from said humidification fluid into said humidification chamber.