METHOD AND APPARATUS FOR COLLECTION OF WASTE ANESTHETIC GASES
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Accused Products
Abstract
In an apparatus for collection of waste anesthetic gases, and a method of using such an apparatus, the apparatus has a gas collection chamber with an input port to be connected to an exhaust of an anesthesia delivery system for receiving a first gas flow therefrom that contains a waste anesthetic gas component. An output port from the gas collection chamber is connected to a vacuum system for evacuation of an evacuation gas flow from the gas collection chamber. A bidirectional port leads to and from the gas collection chamber, which has an adsorbing unit connecting the gas collection chamber with an ambient environment surrounding the gas collection chamber. The apparatus provides for safe prevention of discharge of exhaled anesthetic gases into an ambient atmosphere surrounding the apparatus.
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Citations
31 Claims
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1-14. -14. (canceled)
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15. An apparatus to collect waste anesthetic gases from an exhaust gas flow from an exhaust of an anesthesia delivery system, said apparatus comprising:
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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 absorbing unit located therein that absorbs or desorbs said waste anesthetic gas component dependent on gas flow through said regenerative absorbing 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 absorbing unit with said waste anesthetic gas component being absorbed in said regenerative absorbing unit, and said bidirectional port allowing a regenerative ambient air input gas flow to enter into said gas collection chamber through said regenerative absorbing unit, causing said waste anesthetic gas component to be desorbed from said regenerative gas absorbing unit and to exit said gas collection chamber through said output port together with said evacuation gas flow. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method to collect waste anesthetic gases from an exhaust gas flow from an exhaust of an anesthesia delivery system having a gas collection chamber having a first port, a second port, and a third port, said method comprising the steps of:
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using first port as an input port to said gas collection chamber, and placing said input port in fluid connection with an exhaust of said anesthesia system and receiving, via said input port, a first gas flow discharged from said anesthesia delivery system, said exhaust gas flow including a waste anesthetic gas component; using said second port as an output port from said gas collection chamber, and placing said output port in fluid connection to a vacuum system and, from said output port, evacuating an evacuation gas flow from said gas collection chamber; and said third port being a bidirectional port to and from said gas collection chamber, and placing a regenerative absorbing unit in said bidirectional port and, with said regenerative absorbing unit, absorbing or desorbing said waste anesthetic gas component dependent on gas flow through said regenerative absorbing unit, and via 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 absorbing unit with said waste anesthetic gas component being absorbed in said regenerative absorbing unit, and via said bidirectional port, allowing a regenerative ambient air input gas flow to enter into said gas collection chamber through said regenerative absorbing unit, causing said waste anesthetic gas component to be desorbed from said regenerative gas absorbing unit and to exit said gas collection chamber through said output port together with said evacuation gas flow. - View Dependent Claims (30, 31)
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Specification