Biomedical Engineering Reference
In-Depth Information
Colour by
Filter type
Nozzle filter
Outlet cup
Shape by
stage
3
4
5
DPI1
DPI2
80
70
y=a + b*x
a=4.06
b=0.89
r2=0.958
y=a + b*x
a=1.59
b=0.94
r2=0.991
60
50
40
30
20
10
DPI3
pMDI
80
y=a + b*x
a=0.59
b=1.03
r2=0.986
70
y=a + b*x
a=2.18
b=0.90
r2=0.982
60
50
40
30
20
10
10
20
30
40
50
60
70
80
90
10
20
30
40
50
60
70
80
90
FPM
(
µ
g) rNGI - nozzle filter and outlet cup methods
Fig. 10.66
Full-resolution versus abbreviated NGI measures of
FPM
reported by Svensson and Berg for various pMDI and DPI products; data from each
inhaler category are shown in the separate panels, and the different stages are indicated by
shape
and
colors
on the markers corresponding to the ilter type used
(
From
[
59
]—
courtesy of M. Svensson
)
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