Needleless injection device equipped with a protected reservoir
AssigneeCrossject
InventorPatrick Alexandre
Life of this patent
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Abstract
Needleless injection device (1) comprising a gas generator (2), a reservoir (5) in the form of a glass tube (6) closed by an upstream stopper (7) and a downstream stopper (8) between which a liquid active principle (9) is accommodated, and an injection nozzle (15) equipped with a receptacle (19) and with at least one peripheral injection conduit (20), said tube (6) having, at one of its ends, a flange (4) via which it is in contact with said nozzle (15). The main feature of this needleless injection device (1) is that the tube (6) has a cylindrical inner channel with an upstream part (21) which is continued by a downstream part (22) of smaller diameter, said downstream part (22) being surrounded by said flange (4) and opening into the receptacle (19).
Claims10
A needleless injection device comprising
- a gas generator,
- a reservoir constituted by a glass tube blocked by an upstream stopper and a downstream stopper, between which a liquid active principle is housed,
- an injection nozzle equipped with a receptacle and with at least one peripheral injection duct,
- wherein said tube possesses, at one end, a flange by means of which it is in contact with said nozzle,
- wherein the tube has an internal channel comprising an upstream part extended by a downstream part of smaller diameter, said downstream part being surrounded by said flange and opening into the receptacle.
Dependencies are inferred from the claim text.