Patent ID: 8539950
Filing Date: 2013-09-24
Classification: A61M,G01F

Abstract:
1. An apparatus to collect waste anesthetic gases from an exhaust gas flow from an exhaust of an anesthesia delivery system, said apparatus comprising: a gas collection chamber having a first port, a second port, and a third port; said first port forming an input port to said gas collection chamber, said input port being configured for fluid connection to an exhaust of said anesthesia system to receive a first gas flow discharged from said anesthesia delivery system, said exhaust gas flow including a waste anesthetic gas component; said second port forming an output port from said gas collection chamber, said output port being configured for fluid connection to a vacuum system for evacuation of an evacuation gas flow from said gas collection chamber; and said third port being a bidirectional port to and from said gas collection chamber, said bidirectional port having a regenerative adsorbing unit located therein that adsorbs or desorbs said waste anesthetic gas component dependent on gas flow through said regenerative adsorbing unit, said bidirectional port placing said gas collection chamber in fluid communication with an ambient environment surrounding said gas collection chamber allowing an output gas flow to exit from said gas collection chamber through said regenerative adsorbing unit with said waste anesthetic gas component being adsorbed by said regenerativer adsorbing unit, and said bidirectional port allowing a regenerative ambient air input gas flow to enter into said gas collection chamber through said regenerative adsorbing unit, causing said waste anesthetic gas component to be desorbed from said regenerative gas adsorbing unit and to exit said gas collection chamber through said output port together with said evacuation gas flow.