A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/307 (2006.01) A61M 5/30 (2006.01) A61M 5/315 (2006.01) B65D 1/09 (2006.01) A61M 5/20 (2006.01)
Patent
CA 2095858
2095858 9208508 PCTABS00013 A needleless, three-shot, variable dose jet injector (1) comprises a body portion (2) having a passageway (5) and a trigger (7), a cylinder portion (11) onto which a medicament vial (17) can be screwed in order to vary the dose to be applied and a piston head (16) movable within the cylinder portion (11) to move a plunger (15) into the vial (17). The vial (17) has a bore (20) containg the medicament which exits through an orifice (19) under pressure from a plug (21) moving under actuation from the plunger (15). The piston head (16) is caused to move by the release of gas from one (28) of three chambers in a gas capsule (27) through an exit port (43) into the passageway (5) due to the trigger (7) opening a valve (31). The passageway (5) is arranged so as to only align with the exit port and valve of one of the three chambers at a time, so that, by rotating the capsule (27), three shots of gas can be provided in a single capsule.
Columbia Pacific Technologies Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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