Faculty of Biomedical Engineering, Czech Technical University in Prague
Kladno, 27201, Czechia
Completed
NCT Number: NCT04933773
SpO2 Measurement Depending on Different Pulse Oximeter Averaging Time Settings
The aim of this study is to characterize the noise in the SpO2 signal depending on different pulse oximeter averaging time settings.
Completed
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Notify MeKey information
Age range
18 year–30 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
Primary location
About this study
Noise in the SpO2 signal is most often caused by artifacts, such as movement artifacts, reduced perfusion, additional light and others. These artifacts can be partially removed from the SpO2 signal by different pulse oximeter settings, specifically the sensitivity mode and averaging time. It is known that when a longer averaging time is set, the measured signal contains fewer artifacts, on the other hand there is an increased risk of missing short desaturation. The aim of this work is to characterize the noise in the SpO2 signal depending on the set averaging time of the pulse oximeter based on experimental data from healthy volunteers.
Who can participate
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- healthy volunteers from the Czech Technical University
Exclusion criteria
- pregnancy
- severe cardiovascular conditions
- injury to the upper limbs or hands that could affect the peripheral perfusion
- diabetes
- hypotension or hypertension
Treatment and study plan
Movement artifact - knocking
Other60 seconds motion artifact simulation - knocking with sensors
Movement artifact - tremor
Other60 seconds motion artifact simulation - tremor with sensors
Artifact - ambient light
Other60 seconds artifact simulation - ambient light using sensor opening
Artifact - low perfusion
Other60 seconds artifact simulation - reduced perfusion using a cuff
SpO2 measurement
OtherTwo SpO2 measuring devices are active simultaneously on one hand during measurement.
Primary outcomes
-
SpO2 readings with different averaging times
Time frame: 30 minutes
Differences in the SpO2 signal during artifacts depending on the set averaging time.
Sponsors and collaborators
Lead sponsor
Czech Technical University in Prague
Other
Registry information
Important dates
- Study start
- 2021
- Primary completion
- 2021
- Study completion
- 2021
- First posted
- Jun 22, 2021
- Registry last updated
- Jan 28, 2022
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.