A - Human Necessities
61
M
128/84
A61M 5/315 (2006.01) A61M 5/50 (2006.01)
Patent
CA 2005322
ABSTRACT The invention is referring to a syringe (1), comprising a container (2), a needle (3) capable of coacting with one end (2a) of the container, a plun- ger (4') which is located inside the container and which co-acts sealingly with the inner surface (2c) thereof, and a rod-shaped element which co-acts with the plunger and which is arranged for rectilinear reciprocating move- ment relative to the container. There being provided between the plunger (4') and the rod-shaped element (5), for their mutual co-action, a means (5a',4b') which during linear movement of said element in said first di- rection (P1) holds the plunger (4') against the rod-shaped element (5) and which upon linear movement of the element (5) and the plunger (4') in the opposite direction (P2) takes an inactive state., in which co-action between the rod-shaped element (5) and the plunger (4') is discontinued, therewith to prevent further liquid from being drawn into the container upon renewed linear movement of the rod-shaped element in the first direction (P1). The plunger or a part thereof (4') is intended to take a position in which the plunger (4') is effective to prevent the container (2) from being filled with injection liquid via the needle (3) or its at- tachment means or that the plunger or a part thereof is intended to coact with means (16) bringing the plunger or a part thereof into an inactive sealing position by said injection liquid. Figure 7 shall be attached to the Abstract when published.
Olovson Gudmar
Smart & Biggar
LandOfFree
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