SpO2 Measurement Depending on Different Pulse Oximeter Averaging Time Settings
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 17
- 试验地点
- 1
- 主要终点
- SpO2 readings with different averaging times
研究概览
简要总结
The aim of this study is to characterize the noise in the SpO2 signal depending on different pulse oximeter averaging time settings.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •healthy volunteers from the Czech Technical University
排除标准
- •pregnancy
- •severe cardiovascular conditions
- •injury to the upper limbs or hands that could affect the peripheral perfusion
- •hypotension or hypertension
研究组 & 干预措施
Set averaging times: 2-4 seconds and 8 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 2-4 seconds, the second pulse oximeter is set to an averaging time of 8 seconds.
干预措施: Movement artifact - knocking (Other)
Set averaging times: 2-4 seconds and 8 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 2-4 seconds, the second pulse oximeter is set to an averaging time of 8 seconds.
干预措施: Movement artifact - tremor (Other)
Set averaging times: 2-4 seconds and 8 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 2-4 seconds, the second pulse oximeter is set to an averaging time of 8 seconds.
干预措施: Artifact - ambient light (Other)
Set averaging times: 2-4 seconds and 8 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 2-4 seconds, the second pulse oximeter is set to an averaging time of 8 seconds.
干预措施: Artifact - low perfusion (Other)
Set averaging times: 2-4 seconds and 8 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 2-4 seconds, the second pulse oximeter is set to an averaging time of 8 seconds.
干预措施: SpO2 measurement (Other)
Set averaging times: 8 seconds and 16 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 8 seconds, the second pulse oximeter is set to an averaging time of 16 seconds.
干预措施: Movement artifact - knocking (Other)
Set averaging times: 8 seconds and 16 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 8 seconds, the second pulse oximeter is set to an averaging time of 16 seconds.
干预措施: Movement artifact - tremor (Other)
Set averaging times: 8 seconds and 16 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 8 seconds, the second pulse oximeter is set to an averaging time of 16 seconds.
干预措施: Artifact - ambient light (Other)
Set averaging times: 8 seconds and 16 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 8 seconds, the second pulse oximeter is set to an averaging time of 16 seconds.
干预措施: Artifact - low perfusion (Other)
Set averaging times: 8 seconds and 16 seconds
SpO2 is measured by two pulse oximeters on one participant's hand (on the index finger and middle finger). One pulse oximeter is set to an averaging time of 8 seconds, the second pulse oximeter is set to an averaging time of 16 seconds.
干预措施: SpO2 measurement (Other)
结局指标
主要结局
SpO2 readings with different averaging times
时间窗: 30 minutes
Differences in the SpO2 signal during artifacts depending on the set averaging time.
次要结局
未报告次要终点