Patent ID: 8052657

Claim:
A device for a self-dosage and management of an administered dosage of a liquid medication in a liquid form into a vascular system of a patient by using a conventional infusion or transfusion system from a container, comprising a tube leading to a catheter; a dosage element acting on said tube directly so as to change a flow aperture of said tube and thereby to change the administered dosage of the liquid medication; and a manually actuateable release element cooperateable with said dosage element, so that said manually actuateable release element at least partially releases the action of the dosage element on said tube without acting directly on said tube so that the flow aperture of said tube can be closed, partially open, or completely open to change a quantity and a time of a supply of the liquid medication including time periods with a full closure of said tube and without a pump, wherein said tube extends in a predetermined direction, wherein said dosage element includes a rocker having two ends spaced from one another in said direction with one end pressable against said tube to change the flow aperture and another end associated with said release element; and further comprising two springs including an adjustable spring cooperating with said one end of said rocker so that said one end of said rocker is pressed more or less against said tube via said adjustable spring, and a switch spring cooperating with the other end of said rocker to revert said other end of said rocker to its starting position after said release element acted on said dosage element, said two springs extending in a same direction transversely to said predetermined direction of extension of said tube.