Self-aspirating hypodermic syringe and self-aspirating assembly

Details Self-aspirating hypodermic syringe and self-aspirating assembly Self-aspirating hypodermic syringe and self-aspirating assembly

1981-02-09

1982-06-08

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

128218D, A61M 522

Patent

active

043334563

ABSTRACT:
A hypodermic syringe of the automatic, or self-aspirating, type for use in combination with cartridge ampoules closed at the lower end by a rubber diaphragm pierceable by a double-ended hypodermic needle and closed at the upper end by a slidable rubber piston comprises a combination of a syringe holder unit and a self-aspirating assembly so-adapted to generate aspirating conditions in the ampoule by the slight backward displacement of the rubber piston.

REFERENCES:
patent: 2904044 (1959-09-01), Jalar et al.
patent: 3115135 (1963-12-01), Sarnoff
patent: 3224445 (1965-12-01), Melott
patent: 3295525 (1967-01-01), Evers et al.
patent: 3340872 (1967-09-01), Cox
patent: 3433223 (1969-03-01), Black
patent: 3583399 (1971-06-01), Ritsky
patent: 3739780 (1973-06-01), Ogle
patent: 3797487 (1974-03-01), Schmidt

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