Suspension device and method

A method for providing a volume of a suspended agent using a propellent fluid comprising

• operably engaging a charging container containing a pressurized propellent fluid to a storage container having an inflow port and an outflow port and containing a plurality of sub-volumes of a suspendable agent in a network within a chamber, thereby depressurizing the fluid and providing propellant pressure to suspend and deliver a suspended agent through the outflow port.

A suspension device comprising

• a compressible tubular network having a plurality of helices containing a plurality of sub-volumes of a suspendable contrast agent with at least two of the helices compressibly secured to prevent tangling of the helices, an inlet adapted to receive a propellant fluid flowing through the helices in contact with the agent to release sub-volumes of the agent, and an outlet for the propellent fluid and suspended contrast agent.

A method for providing to a patient a volume of a suspended contrast agent using a propellent fluid, the method comprising

• operably engaging a charging container containing a pressurized propellent fluid to a storage container having an inflow port and an outflow port and containing a plurality of sub-volumes of a suspendable contrast agent in a network within a chamber, thereby depressurizing the fluid and providing propellant pressure to suspend and deliver a suspended contrast agent through the outflow port to the patient.