Tech Briefs Magazine - June 2022 - Sensor-18

Flow Measurement in Smart Medical Inhalers
I
nhalers are among the most commonly
used devices for treating respiratory diseases
such as asthma and chronic obstructive
pulmonary disease (COPD). With
each inhalation through the inhaler, the
device delivers a specific amount of medication
to the lungs. However, it is commonly
misused because patients often have
problems adopting the correct inhaler
technique and thus re ceive insufficient
medication. This leads to poor disease
control and increased healthcare costs.
Global annual costs associated with
asthma and COPD management are
substantial from both the healthcare
and the societal perspectives.
Research findings show that healthcare
spending for an uncontrolled patient is
payer
Figure 5. 3D-printed inhaler clip-on containing the Sensirion flow sensor SDP3x in the side view (left) and top view (right) showing the unobstructed
flow path of the inhaler. (Image: Sensirion AG)
10
20
30
40
50
60
70
80
0.0
0.5 1.0
1.5 2.0
2.5 3.0
Time (s)
Figure 1. Inhalation flow profile showing the calibrated flow rate in standard liters per minute (l/min)
versus the inhalation time in seconds (s). (Image: Sensirion AG)
18
www.techbriefs.com
3.5 4.0 4.5
5.0
more than double that of a controlled
patient.1
Optimal timing
to release dose
Studies have also found that
most patients make at least one mistake
during inhaler drug intake, resulting in
only 7% to 40% of the drug being delivered
to the lungs. The two biggest and
most serious errors when using metered
dose inhalers (MDIs) are both related
to patient inhalation. The first error is
related to the coordination between inhalation
and triggering the dose release
of the inhaler. Even a short delay can
result in only 20% of the medication
being delivered to the lungs. The second
most significant error is not breathing
deeply enough, which can cause
another 10% less medication to reach
the lungs.
To address these problems, Sensirion
AG (Stäfa, Switzerland) has developed a
prototype that can be clipped on to the
Sensor Technology, June 2022
ST Applications 0622_1.indd 18
Cov
ToC
5/18/22 2:14 PM
Calibrated inhaled Air-Flow Rate (I/min)
http://www.techbriefs.com http://info.hotims.com/82322-850

Tech Briefs Magazine - June 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - June 2022

Tech Briefs Magazine - June 2022 - Intro
Tech Briefs Magazine - June 2022 - Sponsor
Tech Briefs Magazine - June 2022 - Band1
Tech Briefs Magazine - June 2022 - Band2
Tech Briefs Magazine - June 2022 - Cov1
Tech Briefs Magazine - June 2022 - Cov2
Tech Briefs Magazine - June 2022 - 1
Tech Briefs Magazine - June 2022 - 2
Tech Briefs Magazine - June 2022 - 3
Tech Briefs Magazine - June 2022 - 4
Tech Briefs Magazine - June 2022 - 5
Tech Briefs Magazine - June 2022 - 6
Tech Briefs Magazine - June 2022 - 7
Tech Briefs Magazine - June 2022 - 8
Tech Briefs Magazine - June 2022 - 9
Tech Briefs Magazine - June 2022 - 10
Tech Briefs Magazine - June 2022 - 11
Tech Briefs Magazine - June 2022 - 12
Tech Briefs Magazine - June 2022 - 13
Tech Briefs Magazine - June 2022 - 14
Tech Briefs Magazine - June 2022 - 15
Tech Briefs Magazine - June 2022 - 16
Tech Briefs Magazine - June 2022 - 17
Tech Briefs Magazine - June 2022 - 18
Tech Briefs Magazine - June 2022 - 19
Tech Briefs Magazine - June 2022 - 20
Tech Briefs Magazine - June 2022 - 21
Tech Briefs Magazine - June 2022 - 22
Tech Briefs Magazine - June 2022 - 23
Tech Briefs Magazine - June 2022 - 24
Tech Briefs Magazine - June 2022 - 25
Tech Briefs Magazine - June 2022 - 26
Tech Briefs Magazine - June 2022 - 27
Tech Briefs Magazine - June 2022 - 28
Tech Briefs Magazine - June 2022 - 29
Tech Briefs Magazine - June 2022 - 30
Tech Briefs Magazine - June 2022 - 31
Tech Briefs Magazine - June 2022 - 32
Tech Briefs Magazine - June 2022 - 33
Tech Briefs Magazine - June 2022 - 34
Tech Briefs Magazine - June 2022 - 35
Tech Briefs Magazine - June 2022 - 36
Tech Briefs Magazine - June 2022 - 37
Tech Briefs Magazine - June 2022 - 38
Tech Briefs Magazine - June 2022 - 39
Tech Briefs Magazine - June 2022 - 40
Tech Briefs Magazine - June 2022 - 41
Tech Briefs Magazine - June 2022 - 42
Tech Briefs Magazine - June 2022 - 43
Tech Briefs Magazine - June 2022 - 44
Tech Briefs Magazine - June 2022 - 45
Tech Briefs Magazine - June 2022 - 46
Tech Briefs Magazine - June 2022 - 47
Tech Briefs Magazine - June 2022 - 48
Tech Briefs Magazine - June 2022 - 49
Tech Briefs Magazine - June 2022 - 50
Tech Briefs Magazine - June 2022 - 51
Tech Briefs Magazine - June 2022 - 52
Tech Briefs Magazine - June 2022 - 53
Tech Briefs Magazine - June 2022 - 54
Tech Briefs Magazine - June 2022 - 55
Tech Briefs Magazine - June 2022 - 56
Tech Briefs Magazine - June 2022 - Cov3
Tech Briefs Magazine - June 2022 - Cov4
Tech Briefs Magazine - June 2022 - MD-Cov1
Tech Briefs Magazine - June 2022 - MD-Cov2
Tech Briefs Magazine - June 2022 - MD-1
Tech Briefs Magazine - June 2022 - MD-2
Tech Briefs Magazine - June 2022 - MD-3
Tech Briefs Magazine - June 2022 - MD-4
Tech Briefs Magazine - June 2022 - MD-5
Tech Briefs Magazine - June 2022 - MD-6
Tech Briefs Magazine - June 2022 - MD-7
Tech Briefs Magazine - June 2022 - MD-8
Tech Briefs Magazine - June 2022 - MD-9
Tech Briefs Magazine - June 2022 - MD-10
Tech Briefs Magazine - June 2022 - MD-11
Tech Briefs Magazine - June 2022 - MD-12
Tech Briefs Magazine - June 2022 - MD-13
Tech Briefs Magazine - June 2022 - MD-14
Tech Briefs Magazine - June 2022 - MD-15
Tech Briefs Magazine - June 2022 - MD-16
Tech Briefs Magazine - June 2022 - MD-17
Tech Briefs Magazine - June 2022 - MD-18
Tech Briefs Magazine - June 2022 - MD-19
Tech Briefs Magazine - June 2022 - MD-20
Tech Briefs Magazine - June 2022 - MD-21
Tech Briefs Magazine - June 2022 - MD-22
Tech Briefs Magazine - June 2022 - MD-23
Tech Briefs Magazine - June 2022 - MD-24
Tech Briefs Magazine - June 2022 - MD-Cov3
Tech Briefs Magazine - June 2022 - MD-Cov4
Tech Briefs Magazine - June 2022 - Sensor-Cov1
Tech Briefs Magazine - June 2022 - Sensor-Cov2
Tech Briefs Magazine - June 2022 - Sensor-1
Tech Briefs Magazine - June 2022 - Sensor-2
Tech Briefs Magazine - June 2022 - Sensor-3
Tech Briefs Magazine - June 2022 - Sensor-4
Tech Briefs Magazine - June 2022 - Sensor-5
Tech Briefs Magazine - June 2022 - Sensor-6
Tech Briefs Magazine - June 2022 - Sensor-7
Tech Briefs Magazine - June 2022 - Sensor-8
Tech Briefs Magazine - June 2022 - Sensor-9
Tech Briefs Magazine - June 2022 - Sensor-10
Tech Briefs Magazine - June 2022 - Sensor-11
Tech Briefs Magazine - June 2022 - Sensor-12
Tech Briefs Magazine - June 2022 - Sensor-13
Tech Briefs Magazine - June 2022 - Sensor-14
Tech Briefs Magazine - June 2022 - Sensor-15
Tech Briefs Magazine - June 2022 - Sensor-16
Tech Briefs Magazine - June 2022 - Sensor-17
Tech Briefs Magazine - June 2022 - Sensor-18
Tech Briefs Magazine - June 2022 - Sensor-19
Tech Briefs Magazine - June 2022 - Sensor-20
Tech Briefs Magazine - June 2022 - Sensor-21
Tech Briefs Magazine - June 2022 - Sensor-22
Tech Briefs Magazine - June 2022 - Sensor-23
Tech Briefs Magazine - June 2022 - Sensor-24
Tech Briefs Magazine - June 2022 - Sensor-Cov3
Tech Briefs Magazine - June 2022 - Sensor-Cov4
https://www.nxtbook.com/smg/techbriefs/22TB09
https://www.nxtbook.com/smg/techbriefs/22TB08
https://www.nxtbook.com/smg/techbriefs/22TB07
https://www.nxtbook.com/smg/techbriefs/22TB06
https://www.nxtbook.com/smg/techbriefs/22TB05-P
https://www.nxtbook.com/smg/techbriefs/22TB05-D
https://www.nxtbook.com/smg/techbriefs/22TB04
https://www.nxtbook.com/smg/techbriefs/22TB03
https://www.nxtbook.com/smg/techbriefs/22TB02
https://www.nxtbook.com/smg/techbriefs/22TB01
https://www.nxtbook.com/smg/techbriefs/21TB12
https://www.nxtbook.com/smg/techbriefs/21TB11
https://www.nxtbook.com/smg/techbriefs/21TB10
https://www.nxtbook.com/smg/techbriefs/21TB09
https://www.nxtbook.com/smg/techbriefs/21TB08
https://www.nxtbook.com/smg/techbriefs/21TB07
https://www.nxtbook.com/smg/techbriefs/21TB06
https://www.nxtbook.com/smg/techbriefs/21TB05
https://www.nxtbook.com/smg/techbriefs/21TB04
https://www.nxtbook.com/smg/techbriefs/21BT03
https://www.nxtbook.com/smg/techbriefs/21TB02
https://www.nxtbookmedia.com