Self-aspirating hypodermic syringe and self-aspirating assembly therefor

Self-aspirating hypodermic syringe and self-aspirating assembly therefor

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 hol...

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Bibliographische Detailangaben
Hauptverfasser: WEBB, WILLIAM G
Format: Patent
Sprache:eng
Schlagworte:
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung: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.