DEVICE FOR ADMINISTERING MEDICINAL PREPARATIONS

摘要

The device for administering medicinal preparations comprises the isolated capsule subdivided into the chamber for the first medicinal preparation and the chamber for the second medicinal preparation. Accommodated inside said isolated capsule concentrically therewith is the piston which bounds said chamber for the first medicinal preparation Made fast of said piston is the injection needle having the hole located at the base of said piston. Provision is made in the device for the mechanical actuator of said piston, made as the spring-opposed pushrod located inside the housing which also accommodates the retaining member for said spring-opposed pushrod. Said chamber for the second medicinal preparation is arranged concentrically with said chamber for the first medicinal preparation so as to embrage the latter. Said isolated capsule is mounted traversably inside said housing, while communication between both of said chambers is established upon a positive extension of said isolated capsule from said housing outwards. The present invention can find most extensive application for preparing, for extemporaneous administration, the mixtures of medicinal preparations of various quality or different concentration, thus facilitating much the selfinjecting procedure and preserving the sterility of the injection needle.