Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1988-12-16
1990-03-13
Sykes, Angela D.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820312, 12820018, A61M 1500
Patent
active
049075837
ABSTRACT:
Device in a previously known powder inhalator intended for inhalation of an air flow which contains pharmacologically active compound in micronized form. The powder inhalator comprises a nozzle unit (2) with a nozzle aperture (2a) as well as a container unit (3) with a releasing or dosing unit (6) for delivering the active compound. The air flow generated by inhalation is at least partly aspirated through an air conduit (7) located in the container unit (3), which conduit extends from an air inlet (8), communicating with the environment, via said releasing or dosing unit (6), up to said nozzle unit (2). According to the invention, deflector devices are stationarily arranged in the container unit (3) and/or in the nozzle unit (2), said deflector devices, for example in the shape of a helical channel portion (13), being arranged to create a powerful deflecting movement for the purpose of disrupting said powder particles into the respirable particle size distribution (less than 5 .mu.m).
REFERENCES:
patent: 1309597 (1919-07-01), Parker
patent: 1431177 (1922-10-01), Palmer
patent: 2604094 (1952-07-01), Miller et al.
patent: 2674999 (1954-04-01), Cox
patent: 2804341 (1957-08-01), Bete
patent: 4014470 (1977-03-01), Burnham
patent: 4147166 (1979-04-01), Hansen
patent: 4353365 (1982-10-01), Hallworth et al.
patent: 4446862 (1984-05-01), Baum et al.
patent: 4524769 (1985-06-01), Wetterlin
patent: 4570630 (1986-02-01), Elliott et al.
Andersson Jan A. R.
Virtanen Risto
Wetterlin Kjell I. L.
Aktiebolaget Draco
Sykes Angela D.
LandOfFree
Device in powder inhalators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device in powder inhalators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device in powder inhalators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-45297