NASAL SPRAY NOZZLE TO BE USED IN MEDICAL SYRINGE,申请号WO2015JP68199-传众专利搜索

NASAL SPRAY NOZZLE TO BE USED IN MEDICAL SYRINGE

申请公布号：WO2015199130(A1)

申请号：WO2015JP68199

申请日期：2015.06.24

申请公布日期：2015.12.30

申请人：

TOKO YAKUHIN KOGYO KABUSHIKI KAISHA

发明人：KAMISHITA, TAIZOU;MIYAZAKI, TAKASHI;HOSHINO, SHINYA

分类号：A61M11/00;A61K9/12;A61K47/02;A61K47/32;A61M15/08;B05B1/34

主分类号：A61M11/00

摘要：The purpose of the present invention is to achieve intended spray characteristics when spraying a pharmaceutical formulation with prescribed characteristics using a nasal spray nozzle that is used in a metered dose syringe sprayer. The present invention relates to a nasal spray nozzle that is used in a medical syringe with a tip opening, which is in fluid communication with a syringe barrel that is holding a pharmaceutical formulation. The nasal spray nozzle is characterized in: being provided with a hollow nozzle body with a tip in which a nozzle spray hole is formed, a solid filling rod disposed inside the nozzle body, and a nozzle chamber, which is formed between the filling rod and the nozzle body and which allows fluid communication between the tip opening and the nozzle spray hole; the pharmaceutical formulation containing a gel base, which includes a carboxyvinyl polymer and a viscosity modifier and the viscosity of which has been modified by applying an external shearing force; and the nozzle spray hole having a diameter of 0.25 mm - 0.30 mm.