Patent ID: 9283335
Filing Date: 2016-03-15
CPC Classification: A61M

Claim Text:
1. Dispensing device for dispensing a powder as a spray including fine powder particles, the dispensing device comprising at least one duct, at least one powder-containing storage chamber connected to said at least one duct, and at least two powder jets connected to the at least one duct downstream thereof, wherein the powder is dispensable via the at least two powder jets into a mouthpiece from the at least one powder-containing storage chamber and at least one duct by gas pressure for de-agglomerating the powder, wherein the at least two powder jets are arranged at a powder impinging angle so as to form a powder jet impinging means for impinging powder from the at least two powder jets against each other to at least one of deagglomerate the powder, slow down the propagation velocity of the spray and mix separate powders by said at least two powder jets, wherein said powder impinging angle between the at least two powder jets is about 90° to 150° in a plane containing the powder jets; wherein said powder jets are positioned relative to a frontmost end of the device from which the spray dispensed is received by a user so as to produce impingement of powder from said jets externally, forward of the frontmost end of the device, and wherein a first cross section of a gas supply inlet to the storage chamber is smaller than a second cross section of an outlet for the powder to substantially control or restrict the gas flow during dispensing of the powder by the first cross section.