摘要:
A fluid or powdery product dispensing device comprises a dispensing outlet (10), an air ejector (20) comprising a piston (21) that slides in an air chamber (22) to generate an air flow when the device is actuated, and at least one reservoir (30) containing a unit dose of the product, the reservoir comprising an air inlet (31) with a product retaining member (40) and a product outlet (32) closed by a closing element (50), the device comprising a mechanical opening system (61, 62) for ejecting the closing element mechanically from its closing position, the piston of the air ejector cooperating, in the rest position, in a non-sealing manner with the air chamber in order to connect the air chamber to the atmosphere.
摘要:
A nasal powder delivery device (100) comprising a container (110) containing at least one dose of powder, a nasal delivery head (120) intended to be inserted into a user's nostril, said nasal delivery head having a delivery aperture (121), and an air discharge system (130) generating, upon actuation of said nasal powder delivery device (100), a flow of compressed air for delivering a dose of powder into the nostril through said delivery aperture (121), wherein said air discharge system comprises an air chamber (131) and a piston (132) sealingly sliding in said air chamber (131) in order to compress the air in said chamber (131), said nasal powder delivery device (100) having the following properties: a pressure of said compressed air flow generated by said air discharge system (130) that is higher than 0.7 bar; and a volume of said air chamber (131) that is greater than 1700 mm 3 .