Endermic injector device

Details Endermic injector device Endermic injector device

A - Human Necessities

61

M

128/65

A61M 5/30 (2006.01) A61M 5/20 (2006.01)

Patent

CA 1228519

ABSTRACT OF THE DISCLOSURE This invention concerns an endermic injector device for subcutaneous injections without a needle, said device being suitable for injecting under pressure at least one fluid drawn in a measured dose from replaceable phials which are advantageously or a throwaway kind, whereby nozzle means, means to aspirate fluid, means to expel fluid and means to provide the required expulsion force are comprised, said device including in cooperation: - an aspiration and ejection group consisting of valve means to draw and deliver fluid, a cylindrical chamber to hold fluid together with a removable small piston, and safety means with an alignment head, - a group to control aspiration and expulsion which comprises means for axial withdrawal of said small piston, tripping means and spring means for the axial forward movement of said small piston, - means to regulate the pre-loading of said spring means and means to display the quantity of the dose, and - means to hold and position said phials.

445851

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