Patent ID: 8133205

Claim:
An injection system, comprising: a fluid container; a pumping mechanism comprising two or more pressurizing chambers in fluid connection with the fluid container via a connector, each of the two or more pressurizing chambers being formed from a flexible, resilient material that is adapted to be compressed to pressurize fluid therewithin, wherein each of the two or more pressurizing chambers has an input and an output, the input of each of the two or more pressurizing chambers in fluid connection with the fluid container, and wherein the two or more pressurizing chambers are disposed generally parallel to each other, to form separate flow paths through the pumping mechanism; and a drive mechanism comprising respective drive members cooperating with the two or more pressurizing chambers of the pumping mechanism to pump fluid from the fluid container and to pressurize fluid within the two or more pressurizing chambers, wherein the drive members are driven in a reciprocating manner to sequentially compress the respective pressurizing chambers in an alternating, timed sequence to sequentially pass fluid through the separate flow paths and provide substantially continuous fluid flow to an outlet in fluid connection with the output of each of the two or more pressurizing chambers.