The Camera Oximeter: A Calibration Study
Pulse oximetry is a standard non-invasive method of measuring blood oxygen saturation (SpO2). In developing countries, pulse oximeters are rare because of expense and electricity requirements. Our ECEM group has developed the Phone Oximeter, which uses a cell phone (widely available in developing countries) to compute and analyze information from a pulse oximeter sensor. To further reduce costs, we use the integrated flashlight of a cell phone's camera to extract SpO2 (Camera Oximeter), eliminating the need for external hardware. This study aims to calibrate the Camera Oximeter by exposing 30 healthy adult volunteers to various altitudes in UBC's hypoxia chamber.
Blood Oxygen Saturation Level
Other: Normobaric hypoxia chamber
|Study Design:||Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||The Camera Oximeter: A Calibration Study|
- Oxygen saturation [ Time Frame: Across 3 hours ] [ Designated as safety issue: No ]Accurately calibrated Camera Oximeter for measuring oxygen saturation.
- Heart rate [ Time Frame: Across 3 hours ] [ Designated as safety issue: No ]Accurately calibrated Camera Oximeter for measuring heart rate.
- Respiratory rate [ Time Frame: Across 3 hours ] [ Designated as safety issue: No ]Accurately calibrated Camera Oximeter for measuring respiratory rate.
|Study Start Date:||January 2013|
|Study Completion Date:||August 2013|
|Primary Completion Date:||August 2013 (Final data collection date for primary outcome measure)|
Normobaric hypoxia chamber
Study subjects will be put into a hypoxic state by exposing them to normobaric (sea-level atmospheric pressure) hypoxia (low oxygen) by administrating an air mix containing a reduced O2 concentration. This is achieved in a hypoxia chamber where O2 concentration is gradually reduced to simulate high altitude (around 4500 m).
|Other: Normobaric hypoxia chamber|
Show Detailed Description
Please refer to this study by its ClinicalTrials.gov identifier: NCT01732016
|Canada, British Columbia|
|BC Children's Hospital|
|Vancouver, British Columbia, Canada, V6H 3V4|