Flexible photoplethysmographic sensing devices for intelligent medical treatment

Wu, Weitong; Wang, Lili; Shen, Guozhen

doi:10.1039/d2tc03318f

Cited by 5 publications

(4 citation statements)

References 126 publications

(350 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It helps protect internal optical components while allowing light to pass through effectively. Encapsulants such as silica gel [ 242 ] and polyurethane [ 243 ] provide strong adhesion, chemical resistance, and mechanical strength. They play a crucial role in protecting sensors.…”

Section: Methodsmentioning

confidence: 99%

Applications of flexible electronics related to cardiocerebral vascular system

Lin,

Lei,

Ding

et al. 2023

Materials Today Bio

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Applications of flexible electronics related to cardiocerebral vascular system

Lin,

Lei,

Ding

et al. 2023

Materials Today Bio

View full text Add to dashboard Cite

“…The literature already shows that respiratory rate and heartbeat can be inferred from ECG signals [28,29]. Similarly, blood pressure can be measured using PPGs [30] and ECGs [22], allowing for a cuffless blood pressure monitoring that is more comfortable for the patient and can be integrated into a biosensor frame. PPG is a non-invasive optical technique from which many physiological parameters can be derived, as it produces a waveform that correlates with circulatory volume in skin tissue.…”

Section: Introductionmentioning

confidence: 99%

Heart Rate Measurement Using the Built-In Triaxial Accelerometer from a Commercial Digital Writing Device

Payette,

Vaussenat,

Cloutier

2024

Sensors

View full text Add to dashboard Cite

Currently, wearable technology is an emerging trend that offers remarkable access to our data through smart devices like smartphones, watches, fitness trackers and textiles. As such, wearable devices can enable health monitoring without disrupting our daily routines. In clinical settings, electrocardiograms (ECGs) and photoplethysmographies (PPGs) are used to monitor heart and respiratory behaviors. In more practical settings, accelerometers can be used to estimate the heart rate when they are attached to the chest. They can also help filter out some noise in ECG signals from movement. In this work, we compare the heart rate data extracted from the built-in accelerometer of a commercial smart pen equipped with sensors (STABILO’s DigiPen) to standard ECG monitor readouts. We demonstrate that it is possible to accurately predict the heart rate from the smart pencil. The data collection is carried out with eight volunteers writing the alphabet continuously for five minutes. The signal is processed with a Butterworth filter to cut off noise. We achieve a mean-squared error (MSE) better than 6.685 × 10−3 comparing the DigiPen’s computed Δt (time between pulses) with the reference ECG data. The peaks’ timestamps for both signals all maintain a correlation higher than 0.99. All computed heart rates (HR =60Δt) from the pen accurately correlate with the reference ECG signals.

show abstract

“…Promising applications of these stretchable strain sensors include health monitoring, human motion detection, and human-machine interfaces [ 5 , 11 , 12 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ] in which the sensors are attached to the skin. Sensors with sufficient stretchability can measure characteristics such as muscle movement, joint movement, heartbeat, and respiration, while maintaining good contact with the skin.…”

Section: Introductionmentioning

confidence: 99%

Stretchable Strain Sensor with Small but Sufficient Adhesion to Skin

Nishikawa

Yamane

Matsuhisa

et al. 2023

Sensors

View full text Add to dashboard Cite

Stretchable strain sensors that use a liquid metal (eutectic gallium–indium alloy; E-GaIn) and flexible silicone rubber (Ecoflex) as the support and adhesive layers, respectively, are demonstrated. The flexibility of Ecoflex and the deformability of E-GaIn enable the sensors to be stretched by 100%. Ecoflex gel has sufficiently large adhesion force to skin, even though the adhesion force is smaller than that for commercially available adhesives. This enables the sensor to be used for non-invasive monitoring of human motion. The mechanical and electrical properties of the sensor are experimentally evaluated. The effectiveness of the proposed sensors is demonstrated by monitoring joint movements, facial expressions, and respiration.

show abstract

Flexible photoplethysmographic sensing devices for intelligent medical treatment

Abstract: The beat frequency, flow rate, and oxygen content of human pulsating blood are important health indicators. For early diagnosis of diseases and real-time monitoring of cardiovascular health in specific practical...

Cited by 5 publications

References 126 publications

Applications of flexible electronics related to cardiocerebral vascular system

Applications of flexible electronics related to cardiocerebral vascular system

Heart Rate Measurement Using the Built-In Triaxial Accelerometer from a Commercial Digital Writing Device

Stretchable Strain Sensor with Small but Sufficient Adhesion to Skin

Contact Info

Product

Resources

About