公开(公告)号：WO9309881A3

公开(公告)日：1993-06-24

申请号：PCT/GB9202098

申请日：1992-11-12

Applicant: MEDIX ELECTRONICS LTD

Inventor： STIMPSON PHILIP GEORGE ,  HOPKINS ANDREW DAVID

IPC: A61M11/00 ,  A61M15/00 ,  B05B17/06 ,  B06B1/02

CPC classification number: B05B17/0669 ,  A61M15/0085 ,  A61M2205/3386 ,  B05B12/081 ,  B05B17/0607 ,  B05B17/0615 ,  B06B1/0238 ,  B06B2201/40 ,  B06B2201/55

Abstract: A nebuliser for use in administering a medicament to a patient undergoing treatment for example, comprises an ultrasonic piezoelectric transducer (60) and a transducer drive system (D) which is caused to drive said transducer at or near its anti-resonant frequency. There is also provided means to optimise nebulised fluid particle size and transfer to the patients lungs for example, by operating at an anti-resonant frequency in the range of 1.36 to 1.56 MHz and having a single outlet baffle and relatively short outlet tube (24) arrangement.