Other

Thornhill Scientific Inc.

Fisher, Joseph

Iscoe, Steve

Somogyi, Ron

Vesely, Alex

Azami, Takafumi

Preiss, David

Nayot, Dan

Prisman, Eitan

Adams, Tehilla

Takafumi Azami

Joseph A Fisher

Alex Vesely

David Preiss

Eitan Prisman

Steve Iscoe

Ron Somogyi

Tehilla Adams

Dan Nayot

Joseph Fisher

A method of identifying alveolar ventilation (V) in a subject, the method comprising: (1) using a breathing circuit which, at exhalation, keeps exhaled gas separate from inhaled gas and at inhalation, when a first gas set (FGS) flow is less than the subject's minute ventilation (V), results in a subject inhaling FGS first and then a second gas set (SGS), for the balance of inhalation; (2) setting the FGS flow at a rate greater that V; (3) measuring an end tidal COconcentration at a steady state; (4) progressively lowering the FGS flow until a time equal to a recirculation time of COin the subject; and (5) deriving Vas the rate of FGS flow at the intersection between an average PETCOin a steady state and a line fit to the PETCOvalues after the rise in PETCOvalues begins until the recirculation time.

Method of measuring cardiac related parameters non-invasively via the lung during spontaneous and controlled ventilation

A breathing circuit for sequential gas delivery of a first gas set (FGS) and a second gas set (SGS) employs an arrangement of conduits and active or passive valves to prevent mixing of the FGS and SGS including a valve triggered by depletion of FGS that makes the SGS available for inspiration after the FGS is depleted.

Breathing circuits to facilitate the measurement of cardiac output during controlled and spontaneous ventilation

A method of calculating the flux of any gas (x) in a CBC circuit for a ventilated or a spontaneous breathing subject, for example said gas(x) being; a) an anesthetic such as but limited to; i)NO; ii) sevoflurane; iii) isoflurane; iv) halothane; v) desflurame; or the like b) Oxygen; c) Carbon dioxide; or the like utilizing the following relationships; Flux of gas(x)=SGF (F&#x2212;F) wherein SGF=Source of gas flow into the breathing circuit (CBC circuit) in liters/minute as read from the gas flow meter as set by the anesthesiologist; F=Fractional concentration of gas X in the source gas (which is set by the anesthesiologist); F=Fractional concentration of gas X in the end expired gas as determined by a portable gas analyzer, or the like.

Method for continuous measurement of flux of gases in the lungs during breathing

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Toronto, Canada

Takafumi Azami