Patent ID: 9314749
Filing Date: 2016-04-19
CPC Classification: A61J,A61K,A61M,B01F

Claim Text:
1. A mixing device for mixing two drug solutions of different specific gravities, said mixing device comprising: a swirling flow generating chamber adapted for generating a swirling flow; a first inflow opening adapted for introducing a first drug solution into the swirling flow generating chamber in a direction parallel to a central axis of the swirling flow; a second inflow opening adapted for introducing a second drug solution into the swirling flow generating chamber so as to generate a swirling flow of the second drug solution having a specific gravity lower than that of the first drug solution in the swirling flow generating chamber; an outflow opening adapted for discharging a mixed drug solution of the first drug solution and the second drug solution; and a narrowing chamber which is interposed between the swirling flow generating chamber and the outflow opening and has a space continuously narrowed toward the outflow opening, wherein a length of the swirling flow generating chamber is shorter than a length of the narrowing chamber, the first inflow opening being formed on an end surface in front of the swirling flow generating chamber, and the second inflow opening being formed on a side surface of the swirling flow generating chamber, the second inflow opening being located downstream from said first inflow opening.