US 12,246,130 B2
Medicine dispensing device and method for manufacturing same
Shunji Haruta, Kagoshima (JP); Genji Satoyoshi, Kagoshima (JP); and Hideaki Mishima, Kagoshima (JP)
Assigned to Shin Nippon Biomedical Laboratories, Ltd., Kagoshima (JP)
Appl. No. 17/295,031
Filed by Shin Nippon Biomedical Laboratories, Ltd., Kagoshima (JP)
PCT Filed Oct. 2, 2019, PCT No. PCT/JP2019/038943
§ 371(c)(1), (2) Date May 18, 2021,
PCT Pub. No. WO2020/105290, PCT Pub. Date May 28, 2020.
Claims priority of application No. 2018-216575 (JP), filed on Nov. 19, 2018; and application No. 2019-127425 (JP), filed on Jul. 9, 2019.
Prior Publication US 2021/0393897 A1, Dec. 23, 2021
Int. Cl. A61M 15/08 (2006.01); A61M 11/02 (2006.01); A61M 15/00 (2006.01)
CPC A61M 15/08 (2013.01) [A61M 11/02 (2013.01); A61M 15/0035 (2014.02); A61M 15/0043 (2014.02); A61M 2202/064 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A medicine dispensing device of a single-use type for dispensing a predetermined dose of a powdered medicine into a nasal cavity, the medicine dispensing device comprising:
a nozzle member that includes a filling space to be filled with the powdered medicine and an ejection opening from which the powdered medicine is ejected;
a closing member that closes the ejection opening;
a sealing member that seals an opening on a side opposite to the ejection opening of the filling space;
a pump member configured to expel air as the pump member contracts by pressure on a bottom portion of the pump member, to eject the powdered medicine from the ejection opening;
a puncturing member comprising a tip portion having a conical shape configured to form a hole by puncturing the sealing member, the puncturing member being configured to move toward the sealing member as the pump member contracts; and
a cap portion formed on an underside of the tip portion of the puncturing member and configured to direct air flowing through the hole of the sealing member in a radially outward direction.