A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/84
A61M 5/50 (2006.01) A61M 5/178 (2006.01) A61M 5/31 (2006.01)
Patent
CA 1317177
ABSTRACT A single use syringe having an interacting piston and cylinder which cooperate to define a variable volume working space, the syringe includes a valve body located in the chamber so as to divide the chamber into a first and second sub-chamber, the valve body has valves which permit a liquid to be initially drawn into the syringe and then injected, but prevent a subsequent liquid being drawn into the syringe.
606993
Butler John H. A.
Swabey Ogilvy Renault
LandOfFree
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