Patent ID: 6523356
Filing Date: 2003-02-25
Classification: A61K

Abstract:
A method of meting a quantity of hyperpolarized gas into a container, comprising the steps of:providing an enclosed sealable gas flow path, the gas flow path extending between a hyperpolarized gas source and a gas syringe, and between the gas syringe and a sealable container different from the hyperpolarized gas source, wherein the gas syringe has a translatable plunger held therein and a port configured to receive gas into and expel gas from the syringe; releasing a quantity of hyperpolarized gas in gaseous form from the hyperpolarized gas source such that it flows into the gas flow path; directing the hyperpolarized gas in the gas flow path into the syringe; translating the plunger a distance in the syringe away from the port in response to the quantity of hyperpolarized gas received therein; and advancing the plunger a desired distance in the syringe toward the port to direct a desired quantity of hyperpolarized gas in gaseous form from the syringe into the gas flow path and into the sealable container, thereby meting a desired amount of the hyperpolarized gas into the sealable container.