Manifold medication injection apparatus and method

Details Manifold medication injection apparatus and method Manifold medication injection apparatus and method

A - Human Necessities

61

M

A61M 5/19 (2006.01) A61M 5/315 (2006.01) A61M 5/24 (2006.01)

Patent

CA 2159464

A hand-held dual liquid medication injector (100, 400) having dual, bi-directional dosage metering mechanisms (252, 253, 410) for permitting a variable dosage amount for each cartridge (104, 106) of liquid medication. The medications are mixed within a manifold (122) having a valved mixing chamber (14) and are injected via a single cannula (121). The mixing chamber is valved (136) such that backflow of mixed or unmixed medications into the cartridges is prevented. An injection mechanism (116, 254, 412), independent of the metering mechanism, loads and injects the liquid medication. In one embodiment, transverse movement of the injection mechanism (116) during injection is translated into horizontal movement by the plunger mechanism. In another embodiment, a power-assisted plunger mechanism (412) accomplishes injection.

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