Self-damaged disposable syringe

The utility model relates to a self-damaged disposable syringe, which mainly comprises an injection cylinder 1, a push rod 2 provided with a cross-shaped cross section and positioned in the injection cylinder, a piston 7 positioned on the front end of the push rod, elastic sheets 5 positioned betwee...

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Hauptverfasser: WEIXIANG SU, YOUDE CHEN
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creator WEIXIANG SU
YOUDE CHEN
description The utility model relates to a self-damaged disposable syringe, which mainly comprises an injection cylinder 1, a push rod 2 provided with a cross-shaped cross section and positioned in the injection cylinder, a piston 7 positioned on the front end of the push rod, elastic sheets 5 positioned between the inner wall of the injection cylinder and the rod wall of the cross-shaped push rod and a retreat stopping gear 6 for the elastic sheets, and the retreat stopping gear is positioned on a spine 3 of the cross-shaped push rod and between the elastic sheets. The utility model is characterized in that the cross sections of the elastic sheets 5 are folded into a star shape, grooves of the star shaped elastic sheets are clamped on a spine 3 of the cross-shaped push rod 2, blades spread on both sides of the grooves are attached on another two mutually connected spines 3 of the cross-shaped push rod 2, and three points 4 of the tail parts of the elastic sheets are in the shape of claw. The utility model has the advantages of simple structure, simple processing, etc. The self-damaged disposable syringe which is suitable for any volume can be conveniently processed because of the structure design of the elastic sheets with the star-shaped cross sections.
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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
title Self-damaged disposable syringe
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