SpO2 Accuracy Comparison of Smart Sock V. 2 SpO2 to Arterial Blood CO-Oximetry

Study Overview
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Brief Summary
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Pulse oximetry monitoring is considered a standard physiological measurement and is used by clinicians in everyday situations to estimate arterial oxygen saturation. There are two devices used in this investigational study: BabySat v.1.0 and Owlet Baby Care, Inc. Smart SockTM 2 (currently available over-the-counter), with specific emphasis on its pulse oximetry accuracy. The BabySat and Smart SockTM 2 are non-invasive home care devices for use with infants. The purpose of this study was to validate the SpO2 accuracy of BabySat v1.0 and Owlet Smart SockTM 2, OSS v1.1 sensors pulse oximetry, during non-motion conditions over the range of 70-100% SaO2 as compared to arterial blood samples assessed by CO-Oximetry.

Detailed Description
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Pulse oximetry monitoring is considered a standard physiological measurement and is used by clinicians in everyday situations to estimate arterial oxygen saturation. A pulse oximeter is a device that measures the oxygen saturation of arterial blood non-invasively. The purpose of this study was to evaluate the SpO2 accuracy performance of the Owlet BabySat v1.0 and Smart SockTM 2 pulse oximetry OSS v1.1 sensors during non-motion conditions over the range of 70-100% SaO2 to arterial blood samples assessed by CO-Oximetry for a SpO2 validation. The goal, in its entirety, was to show the SpO2 accuracy performance for the investigational device Owlet Baby Care, Inc. Smart SockTM V. 2. It was expected that the Accuracy Root Mean Square (ARMS) performance would meet the required specification of ARMS 3% or lower in non-motion conditions for the range of 70 - 100% SaO2 thereby demonstrating an acceptable SpO2 accuracy performance specification. No risks or adverse device effects were expected. There were no contraindications for use in the proposed study population. The study was conducted in accordance to the code of federal regulations for non-significant risk medical device studies and applicable ISO 14155 (2nd edition 2011-02-01), applicable sections of ISO80601-2-61 (1st edition 2011-04- 01), and Pulse Oximeters - Premarket Notifications Submissions [510(k)s] Guidance For Industry and Food and Drug Administration Staff (issued: March 4, 2013)

Official Title
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SpO2 Accuracy Comparison of Smart Sock V. 2 SpO2 to Arterial Blood CO-Oximetry

Conditions
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Hypoxia

Intervention / Treatment
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* Diagnostic Test: Pulse oximetry with Owlet BabySat v1.0 sensor


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 10-15 Adults with a minimum of 3 males and a minimum of 3 females, with the balance, made up of either. Subject must have the ability to understand and provide written informed consent Subject is 18 to 50 years of age At least 2 darkly pigmented subjects or 15% of the subject pool, whichever is larger Subject must be willing and able to comply with study procedures and duration Subject is a non-smoker or who have not smoked within 2 days prior to the study. Exclusion Criteria: Subject is considered as being morbidly obese (defined as BMI >39.5) Compromised circulation, injury, or physical malformation of fingers, toes, hands, ears or forehead/skull or other sensor sites which would limit the ability to test sites needed for the study Females who are pregnant, who are trying to get pregnant Smoker Subjects who have refrained will be screened for COHb levels Subjects with known heart or cardiovascular conditions Subjects with known clotting disorders

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Reference CO-Oximetry<br>Reference Co-Oximetry | Diagnostic Test: Pulse oximetry with Owlet BabySat v1.0 sensor<br>* A comparative, single-center, non-randomized study to evaluate the SpO2 accuracy guidelines for pulse oximetry over the range of 70-100% SaO2 under non-motion conditions. Arterial blood sampling measured by functional SaO2 CO-Oximetry, was used as the basis for comparison with Owlet BabySat v1.0 and Owlet Smart Sock 2 sensors<br>|
| Experimental: Owlet BabySat v1.0<br>Owlet BabySat v1.0 | Diagnostic Test: Pulse oximetry with Owlet BabySat v1.0 sensor<br>* A comparative, single-center, non-randomized study to evaluate the SpO2 accuracy guidelines for pulse oximetry over the range of 70-100% SaO2 under non-motion conditions. Arterial blood sampling measured by functional SaO2 CO-Oximetry, was used as the basis for comparison with Owlet BabySat v1.0 and Owlet Smart Sock 2 sensors<br>|
| Experimental: Owlet Smart Sock V2 v1.1<br>Owlet Smart SockTM 2 , OSS v1.1 Sensor and Custom Adult Thumb Sock | Diagnostic Test: Pulse oximetry with Owlet BabySat v1.0 sensor<br>* A comparative, single-center, non-randomized study to evaluate the SpO2 accuracy guidelines for pulse oximetry over the range of 70-100% SaO2 under non-motion conditions. Arterial blood sampling measured by functional SaO2 CO-Oximetry, was used as the basis for comparison with Owlet BabySat v1.0 and Owlet Smart Sock 2 sensors<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| It Was Expected That the Accuracy Root Mean Square (ARMS) Between Measured SpO2 of Owlet Smart Sock V2 v1.1 and Reference SpO2 Would Meet the Required Specification of ARMS 3% or Lower in Non-motion Conditions for the Range of 70 - 100% | The purpose of the study was to evaluate the accuracy of the blood oxygen saturation (SpO2) at rest over the range of 70-100% compared to arterial blood samples assessed by standard methods [Co-Oximetry]. A standard pulse oximeter accuracy is evaluated by the Accuracy Root Mean Square (ARMS). The results of accurate performance of the oximetry system require ARMS of 3% or less in non-motion conditions for the range of 70-100% SpO2 per standard. | Acute immediate assessment of the sensor accuracy compared to CO-oximetry |