Device for dispensing discrete doses of a liquid
First Claim
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1. A device for the output of a liquid in partitioned amounts, comprising:
- a receiver;
a store room receivable in the receiver for containing a supply of the liquid;
a cylinder including structure defining an intermediate reservoir for containing the partitioned amount when transferred from the store room;
an output mouth piece for delivery of the partitioned amount from the intermediate reservoir; and
an output piston movable within the intermediate reservoir, the output piston including a penetration canal for transfer of liquid from the store room to the intermediate reservoir, the output piston being movable together with the receiver in a first direction, movement of the output piston and the receiver relative to the intermediate reservoir in the first direction filing the intermediate reservoir with the partitioned amount of liquid from the store room when same is received in the receiver, the cylinder and the receiver each being movable in a second direction opposite to said first direction.
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Abstract
The invention is directed to a device (V) for the output of a liquid (2) in partitioned amounts (2'"'"') from a store room (3), preferably in form of a cartridge (K), over an output mouth piece (4), preferably in form of an injection needle (5), and has the object the application of exactly reproducible amounts from a reserve amount and its safe application. This is obtained by an intermediate reservoir (17) taking up the partitioned amount (2'"'"') from the store room (3), whereby for the intermediate reservoir (17) an output piston (19) is provided with a penetration canal (18) to fill the intermediate reservoir (17).
129 Citations
22 Claims
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1. A device for the output of a liquid in partitioned amounts, comprising:
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a receiver; a store room receivable in the receiver for containing a supply of the liquid; a cylinder including structure defining an intermediate reservoir for containing the partitioned amount when transferred from the store room; an output mouth piece for delivery of the partitioned amount from the intermediate reservoir; and an output piston movable within the intermediate reservoir, the output piston including a penetration canal for transfer of liquid from the store room to the intermediate reservoir, the output piston being movable together with the receiver in a first direction, movement of the output piston and the receiver relative to the intermediate reservoir in the first direction filing the intermediate reservoir with the partitioned amount of liquid from the store room when same is received in the receiver, the cylinder and the receiver each being movable in a second direction opposite to said first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification