Surgery – Respiratory method or device – Means for cooling respiratory gas or respiration device
Patent
1993-10-19
1996-01-30
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for cooling respiratory gas or respiration device
12820528, 12820512, 95139, 95114, 95115, 96126, 96152, 55269, 55DIG33, A61M 1600, A62B 710, A62B 2302, F24F 500
Patent
active
054873800
ABSTRACT:
A method and apparatus are provided for use in the delivery of an inhalation anesthetic to a patient while employing a closed loop or re-breather gas recirculation system. The method and apparatus control the system temperature to minimize heat buildup, including heat buildup resulting from an exothermic reaction between a patient's exhaled breath and a scrubbing substance that removes a selected constituent from the patient's exhaled breath. The apparatus includes an enclosure containing a scrubbing substance. The enclosure defines an influent opening for admitting the exhaled breath along a first path into the scrubbing substance and defines an effluent opening through which gases can be discharged from the enclosure. The apparatus also includes a second path adjacent the first path between inlet and outlet openings whereby a coolant fluid can flow along the second path to remove heat from the interior of the enclosure.
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Abbott Laboratories
Asher Kimberly L.
Breininger Thomas M.
Trausch III A. Nicholas
Woodworth Brian R.
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