专利名称：Breathing circuits having unconventional
respiratory conduits and systems andmethods for optimizing utilization of freshgases
发明人：Atsuo F. Fukunaga,Blanca M. Fukunaga,Alex
S. Fukunaga
申请号：US10777772申请日：20040212公开号：US07261105B2公开日：20070828
专利附图：
摘要：A breathing circuit comprising first and second conduits is disclosed, wherein atleast one of the conduits is a non-conventional conduit. A multilumen unilimb breathingcircuit is also disclosed having first and second conduits, wherein when the proximal endsof said first and second conduits are each connected to an inlet and outlet fitting,respectively, movement of the distal end of the first conduit causes a correspondingmovement of the distal end of the second conduit. In an embodiment, inner and outerflexible conduits are formed of pleated tubing that is axially extendable and
compressible to form a unilimb multilumen respiratory circuit. The pleating provides foraxial extension and contraction. The multilumen respiratory circuit can provide a variablerebreathing volume. In an embodiment, at least one tube in a multilumen respiratoryconduit is radially collapsible and radially expandable to a maximum radius for carryingrespiratory gases to and from a patient. Also disclosed are methods and systems ofoptimizing utilization of fresh gases during artificial or assisted ventilation, includingadministering anesthesia.
申请人：Atsuo F. Fukunaga,Blanca M. Fukunaga,Alex S. Fukunaga
地址：Palos Verdes Peninsula CA US,Palos Verdes Peninsula CA US,Palos VerdesPeninsula CA US
国籍：US,US,US
代理人：Daniel B. Schein, Esq.
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