Non-reusable syringe

Details Non-reusable syringe Non-reusable syringe

A - Human Necessities

61

M

128/84

A61M 5/315 (2006.01) A61M 5/178 (2006.01) A61M 5/20 (2006.01) A61M 5/31 (2006.01)

Patent

CA 1306397

ABSTRACT A non-reusable syringe is disclosed having a syringe barrel and a plunger assembly reciprocable in the barrel. The plunger assembly comprises a plunger rod and a piston member, arranged so as to allow limited relative movement with respect to each other. The plunger rod has a resilient blocking member capable of becoming engaged with recesses in the inside wall of the syringe barrel. A safety member is removably arranged between the barrel and the plunger assembly to prevent blocking of the plunger rod before use of the syringe and define a precise dose of the liquid to be injected. The present syringe offers practically absolute guarantee against re-use and allows better and quicker clearance of the air before the injection.

586605

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