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US 6,673,038 B2Granted
Needleless injector cartridge
AssigneeAradigm Corporation
InventorTerence Edward Weston
Life of this patent
Estimating the term…
Abstract
A needleless injector cartridge, comprises an injection component (1) defining a void (17) therein for receiving medicament, and having an injection discharge orifice communicating with the void. The cartridge further comprises a transfer device (2) comprising a liquid-containing reservoir (4), and transfer means for causing the liquid (5) to flow from the reservoir, through a reservoir outlet, into the void in the injection component.
Claims16
A needleless injector cartridge, comprising:
- an injection component defining a substantially evacuated void therein for receiving medicament, and having an injection discharge orifice communicating with the void;
- and
- a transfer device comprising a movable liquid-containing reservoir, and transfer means for causing the liquid to flow from the reservoir, through a reservoir outlet, into said void,
- wherein a septum is provided which, in an unpierced state, provides a barrier to flow of liquid into said void, and wherein said reservoir outlet is defined by means provided with a septum-piercing member movable with said reservoir.
1 more element
A cartridge according to claim 6, wherein the screw cap has an internal screwthread which engages an external screwthread formed on the holder.
Dependencies are inferred from the claim text.