Pressure container for driving a medical device
AssigneeSanofi-Aventis Deutschland GmbH
InventorsChristian Nessel, Christian Dexheimer, Tobias Uth, Florian Hammen
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a portable pressure container for driving a medical device. The container includes a pressure housing confining an interior volume and a pressure outlet extending through the pressure housing . The interior volume comprises a liquid storage portion and a gas storage portion. The liquid storage portion and the gas storage portion are in flow connection with each other. The liquid storage portion is configured to store a liquid phase of a driving medium. The gas storage portion is configured to store a gas phase of the driving medium. The pressure outlet is only in flow connection with the gas storage portion.
Claims17
A portable pressure container for driving a medical device, the pressure container comprising:
- a pressure housing defining an interior volume, the interior volume of the pressure housing comprising a liquid storage portion configured to store a liquid phase of a driving medium and a gas storage portion configured to store a gas phase of the driving medium, the liquid storage portion and the gas storage portion being in flow connection with each other;
- and
- a pressure outlet extending through the pressure housing to an exterior of the pressure housing, the pressure outlet being in direct flow connection with the gas storage portion of the interior volume and not the liquid storage portion of the interior volume;
- and
- a fluid channel comprising an outer end in flow communication with the pressure outlet, the fluid channel protruding from the pressure housing into the interior volume, and terminating with an inner end in the gas storage portion,
- wherein the liquid storage portion is at least partially filled by the liquid phase of the driving medium and wherein the liquid phase of the driving medium is free and configured to evaporate into the gas storage portion, and
- wherein a surface of the liquid phase of the driving medium is separated from the inner end of the fluid channel in any orientation of the pressure container such that the liquid phase of the driving medium is hindered from entering the fluid channel.
A pressure driven portable medical device comprising:
- a pressure driven drive mechanism;
- and
- at least one portable pressure container, the pressure container comprising:
- a pressure housing defining an interior volume, the interior volume of the pressure housing comprising a liquid storage portion configured to store a liquid phase of a driving medium and a gas storage portion configured to store a gas phase of the driving medium, the liquid storage portion and the gas storage portion being in flow connection with each other;
- and
- a pressure outlet extending through the pressure housing to an exterior of the pressure housing, the pressure outlet being in direct flow connection with the gas storage portion of the interior volume and not the liquid storage portion of the interior volume;
- and
- a fluid channel comprising an outer end in flow communication with the pressure outlet, the fluid channel protruding from the pressure housing into the interior volume and terminating with an inner end in the gas storage portion,
- wherein the liquid storage portion is at least partially filled by the liquid phase of the driving medium and wherein the liquid phase of the driving medium is free to evaporate into the gas storage portion, and
- wherein a surface of the liquid phase of the driving medium is separated from the inner end of the fluid channel in any orientation of the pressure container such that the liquid phase of the driving medium is hindered from entering the fluid channel.
Dependencies are inferred from the claim text.