使用在指甲上可穿戴的光电晶体成像仪估计心率
概括
新的在指甲上可穿戴的传感器使用手指甲和脚的光电显微镜 (PPG) 准确地测量心率 (HR). 这项技术显示了离散,长期的人力资源监控的潜力,即使在移动时也是如此.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 生理监测 生理监测
背景情况:
- 目前的可穿戴心率 (HR) 监测主要依赖于放置在皮肤上的光电脉冲图 (PPG) 传感器.
- 有限的研究已经探索了PPG信号从硬指甲表面 (如指甲和脚) 获取.
- 刚性表面可以提供与灵活的皮肤式传感器放置相比,增强的运动稳定性.
研究的目的:
- 引入和评估用于估计心率 (HR) 的指甲上可穿戴的光电显微镜 (PPG) 传感器.
- 评估HR监控的可行性从指甲和脚指甲位置在无运动和运动现状条件下.
- 为了比较钉上PPG传感器与商业心电图 (ECG) 和脉冲氧计 (PO) 设备的准确性.
主要方法:
- 开发一个用于反射模式信号采集的指甲上可穿戴的PPG传感器.
- 在静态和动态 (运动) 场景中招募20名参与者进行数据收集.
- 从钉上PPG传感器对金标准ECG和PO测量进行HR估计的比较分析.
主要成果:
- 钉上PPG传感器显示出与ECG衍生的HR有很强的相关性,低根平均平方误差 (RMSE) 在无运动条件下为1.6bpm (指甲) 和2.2bpm (指甲).
- 在运动过程中,指甲的RMSE增加到每分钟5.6拍,脚指甲的RMSE增加到每分钟12.8拍,这表明准确性降低了,但信号采集仍在继续.
- 参与者的皮肤色调没有显著影响传感器的准确性,这表明其适用性广泛.
结论:
- 在指甲上可穿戴的PPG传感器显示出精确的心率监测的巨大潜力.
- 基于指甲的PPG为离散的长期HR监控提供了可行的替代方案,可能集成到鞋类或配件中.
- 进一步的研究可以优化传感器设计和算法,以改善用于连续监控应用的运动工件弹性.
相关概念视频
Pulse rhythm
750
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
750
Pulse Oximetry
293
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
293
Special considerations while measuring oxygen saturation
527
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
527
Guidelines For Measuring Vital Signs
1.5K
Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
1.5K
Assessment of blood pressure in brachial artery(one-step method)
550
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
550
Electrocardiogram
2.0K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.0K


