Self-injecting syringe

Details Self-injecting syringe Self-injecting syringe

A - Human Necessities

61

M

128/84

A61M 1/10 (2006.01)

Patent

CA 1205342

SELF-INJECTING SYRINGE Abstract A squeezing finger pressure is exerted on a trigger mechanism carried by a finger-grip portion of a hypodermic syringe. The depressed trigger mechanism displaces a V-shaped lock spring inwardly, moving a bight portion of the spring out from locking engagement with a lock opening. This frees a compressed compression spring allowing it to drive an internal bushing, a cartridge within a barrel portion of the syringe, a second bushing at the front end of the syringe, and a needle forwardly together, relative to the finger-grip body and the barrel of the syringe. This is done for the purpose of penetrating a needle into tissue in which an injection is to be made.

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