STEINER, SOLOMON S.,POOLE, TRENT,FELDSTEIN, ROBERT,FOG, PER B.
申请号：
CA2642084
公开号：
CA2642084C
申请日:
2000.07.21
申请国别(地区):
CA
年份:
2013
代理人:
摘要：
The dry powder inhaler comprises an intake section； a mixing section, and a mouthpiece. The mouthpiece is connected by a swivel joint to the mixing section, and may swivel back into the intake section and be enclosed by a cover. The intake chamber comprises a piston with a tapered piston rod and spring, and one or more bleed- through orifices to modulate the flow of air through the device. It optionally comprises a feedback module to generate a tone indicating when the proper rate of airflow has been achieved. The mixing section holds a capsule with holes containing a dry powder medicament, and further opens and closes the capsule when the intake section is at a certain angle to the mouthpiece. The mixing section is a Venturi chamber to impart a cyclonic flow of air passing through the mixing chamber.
