Pressure hypodermic syringe

Details Pressure hypodermic syringe Pressure hypodermic syringe

1985-03-07

1986-06-03

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 530

Patent

active

045927421

ABSTRACT:
A pressure hypodermic syringe designed to inject liquid medication includes the feature of simultaneously utilizing a pressure injection system and of comprising basically the two elements that characterize each and every syringe using conventional hypodermic needles, that is, a transparent graded cylinder where the desired medication dose is inserted, and a piston for intake and injection of the dose by displacing itself inside the transparent graded cylinder. The present invention is characterized by being the only hypodermic injection device to dispense with the use of needles while at the same time retaining the simplicity and safely qualities of conventional syringes, since the user may visually set the desired dose for injection and check for the presence of air bubbles before each injection.

REFERENCES:
patent: 3129708 (1964-04-01), Krantz
patent: 3334788 (1967-08-01), Hamilton
patent: 3526225 (1970-09-01), Isobe
patent: 4103684 (1978-08-01), Ismach
patent: 4342310 (1982-08-01), Lindmayer et al.
patent: 4368731 (1983-01-01), Schramm

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