SYRINGE

PROBLEM TO BE SOLVED: To provide a syringe without causing any separated settlings of the elastic cover of a plunger in spite of high-pressure injection when the plunger advances into the syringe. SOLUTION: In the medical syringe 2 for fitting the plunger 4 into a syringe body 3 and advancing the pl...

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Bibliographic Details
Main Authors HITCHINS MARK W, KAKIMI MITSURU
Format Patent
LanguageEnglish
Published 22.01.2002
Edition7
Subjects
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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Summary:PROBLEM TO BE SOLVED: To provide a syringe without causing any separated settlings of the elastic cover of a plunger in spite of high-pressure injection when the plunger advances into the syringe. SOLUTION: In the medical syringe 2 for fitting the plunger 4 into a syringe body 3 and advancing the plunger 4 with respect to the body 3 relatively to infuse an infusion agent filling a plunger body 5 into the circulatory system of a human body, the plunger 4 consists of the body 5 and the elastic cover 9 covering the body from its front side, the body 5 is provided with a back plate 62 at its rear end, an annular groove 68 opening forward is formed at the outer peripheral part of the front surface of the plate 62 to allow a part extended to the rear of the cover 9 when the plunger 4 advances to enter the groove 68 to escape.
Bibliography:Application Number: JP20000318814