A pump including a disposable component including a disposable component inlet port coupled to a first disposable conduit in fluid communication with a fluid medium source, wherein the first disposable conduit includes a disposable piston pump assembly and a disposable bubble eliminator, and the first disposable conduit is in fluid communication with a disposable component outlet port, wherein the disposable bubble eliminator is in fluid communication with a lumen of the first disposable conduit and is operable to reduce a gas content of a fluid medium; wherein the disposable piston pump assembly is operable to pump the fluid medium from the disposable component inlet port, through the first disposable conduit and the disposable bubble eliminator, to the disposable component outlet port; and a reusable component including a reusable movable stage operable to compress the disposable piston pump assembly; and a reusable mechanical actuator operable to drive the movable stage.

A pump including a disposable component including a disposable component inlet port coupled to a first disposable conduit in fluid communication with a fluid medium source, wherein the first disposable conduit includes a disposable piston pump assembly and a disposable bubble eliminator, and the first disposable conduit is in fluid communication with a disposable component outlet port, wherein the disposable bubble eliminator is in fluid communication with a lumen of the first disposable conduit and is operable to reduce a gas content of a fluid medium; wherein the disposable piston pump assembly is operable to pump the fluid medium from the disposable component inlet port, through the first disposable conduit and the disposable bubble eliminator, to the disposable component outlet port; and a reusable component including a reusable movable stage operable to compress the disposable piston pump assembly; and a reusable mechanical actuator operable to drive the movable stage.

A pump including a disposable component including a disposable component inlet port coupled to a first disposable conduit in fluid communication with a fluid medium source, wherein the first disposable conduit includes a disposable piston pump assembly and a disposable bubble eliminator, and the first disposable conduit is in fluid communication with a disposable component outlet port, wherein the disposable bubble eliminator is in fluid communication with a lumen of the first disposable conduit and is operable to reduce a gas content of a fluid medium; wherein the disposable piston pump assembly is operable to pump the fluid medium from the disposable component inlet port, through the first disposable conduit and the disposable bubble eliminator, to the disposable component outlet port; and a reusable component including a reusable movable stage operable to compress the disposable piston pump assembly; and a reusable mechanical actuator operable to drive the movable stage.

A syringe (100) comprising a barrel (111) with a lumen is provided. The barrel (111) is adapted to contain a drug, the barrel (111) having a distal end wall portion (198) and a tubular wall (112) extending proximally from said distal end wall portion (198), whereby the barrel (111) extends along an axis (1000). The distal end wall portion (198) has an opening (199) extending into a syringe head (140) adapted to receive a syringe needle, said syringe head (140) having a lumen smaller in transversal cross-section than the barrel lumen; the syringe (100) further comprising: a plunger (196) extending along the axis, said plunger shaft being displaceable along the axis (1000) within said barrel (111).

A pump including a disposable component including a disposable component inlet port coupled to a first disposable conduit in fluid communication with a fluid medium source, wherein the first disposable conduit includes a disposable piston pump assembly and a disposable bubble eliminator, and the first disposable conduit is in fluid communication with a disposable component outlet port, wherein the disposable bubble eliminator is in fluid communication with a lumen of the first disposable conduit and is operable to reduce a gas content of a fluid medium; wherein the disposable piston pump assembly is operable to pump the fluid medium from the disposable component inlet port, through the first disposable conduit and the disposable bubble eliminator, to the disposable component outlet port; and a reusable component including a reusable movable stage operable to compress the disposable piston pump assembly; and a reusable mechanical actuator operable to drive the movable stage.

An improved system and method for a syringe capable of reducing re-usage and limiting wasted contents. The syringe has a plunger with a plunger plug that extends beyond the barrel of the syringe when the contents are fully dispensed and prevents the plunger from being drawn backward. The plunger may also consist of a two-piece design that separates upon exceeding a predetermined force when attempting to draw the plunger backward after use.

A method of pumping a fluid including providing a pump including a disposable component and a reusable component; connecting the disposable component and the reusable component; receiving a fluid medium from a fluid medium source into a first disposable conduit; drawing the fluid medium into a disposable piston pump assembly of a first disposable conduit; flowing the fluid medium through a disposable flow meter; measuring a flow rate of the fluid medium; discharging the fluid medium into a reusable bubble detector; and discharging the fluid medium from the reusable bubble detector if less than a preselected amount of gas is detected.

A disposable syringe for use in a needleless injector includes a tubular body with an open rear end, a closed front end containing an injection orifice, a chamber in the body for receiving a liquid and a plunger slidable in the chamber for pushing the liquid out of the orifice. A tip is provided on the inner end of the plunger for separation from the remainder of the plunger to block the orifice when the plunger is retracted after an injection, whereby the syringe cannot be re-used.