A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/80
A61M 5/24 (2006.01) A61M 5/315 (2006.01)
Patent
CA 1310871
20368-529 ABSTRACT The invention relates to a method and a device for the preparation of a solution, emulsion or suspension of a sensi- tive medicament in an aqueous medium and a following injection thereof. In the method of the invention, a dual-chamber cyclinder ampoule (1) known per se is used for the mixture of the aqueous medium (11) and the medicament (10), the aqueous medium (11) being made to flow calmly from below and upwards through the medicament (10) in order to avoid any shaking and admixture of air. The mixing is preferably carried out at a pressure above atmospheric. The injection device comprises a front member (13) enclosing a dual-chamber cylinder (1), in which the dry medicament (10) is separated from a liquid phase (11), and a rear member (14) enclos- ing a dosing and administering mechanism (22). When the two members are screwed together the liquid phase (11) will be mixed with the dry medicament (10) and dissolve it, and the finished solution can thereafter be injected by means of the dosage and administration mechanism (22) through a needle (17) arranged at the front end of the front member (13).
570965
Ahlstrand Bo
Florin-Robertson Ebba
Fryklund Linda
Hjertman Birger
Strom Anders
Fetherstonhaugh & Co.
Pharmacia Aktiebolag
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