Mri/nmr compatible hyperpolarized gas delivery valves for...

Details Mri/nmr compatible hyperpolarized gas delivery valves for... Mri/nmr compatible hyperpolarized gas delivery valves for...

A - Human Necessities

61

M

A61M 16/20 (2006.01) A61B 5/055 (2006.01) G01R 33/28 (2006.01)

Patent

CA 2515467

Methods, systems, assemblies, computer program products and devices deliver hyperpolarized gas by: (a) providing a gas delivery valve with at least one gas flow path therein, the valve comprising a valve body and at least one spool held in the valve body; (b) transmitting a pilot command fluid pulse signal to the at least one spool to introduce pressure onto the spool to force the spool to translate an actuation distance in the valve body; and (c) opening and/or closing the at least one gas flow path in response to the transmitted signal to deliver hyperpolarized gas to a subject.

L'invention concerne des procédés, systèmes, ensembles, produits programmes informatiques et dispositifs destinés à la distribution d'un gaz hyperpolarisé par : (a) mise à disposition d'une soupape de distribution de gaz comportant au moins une voie d'écoulement de gaz, cette soupape comprenant un corps et au moins un tiroir maintenu à l'intérieur de ce corps ; (b) transmission d'un signal impulsionnel de commande de fluide pilote à ce ou ces tiroirs pour introduire de la pression sur ce tiroir de sorte qu'il parcoure une distance d'actionnement dans le corps de la soupape ; et (c) ouverture et/ou fermeture de la ou des voies d'écoulement de gaz en réponse au signal transmis en vue de la distribution de gaz hyperpolarisé à un sujet.

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