Improving pulse rate measurements during random motion using a wearable multichannel reflectance photoplethysmograph

KM Warren, JR Harvey, KH Chon, Y Mendelson - Sensors, 2016 - mdpi.com
Photoplethysmographic (PPG) waveforms are used to acquire pulse rate (PR)
measurements from pulsatile arterial blood volume. PPG waveforms are highly susceptible …

Enabling continuous wearable reflectance pulse oximetry at the sternum

M Chan, VG Ganti, JA Heller, CA Abdallah, M Etemadi… - Biosensors, 2021 - mdpi.com
In light of the recent Coronavirus disease (COVID-19) pandemic, peripheral oxygen
saturation (SpO2) has shown to be amongst the vital signs most indicative of deterioration in …

Heart-lung interactions measured by electrical impedance tomography

S Maisch, SH Bohm, J Sola, MS Goepfert… - Critical care …, 2011 - journals.lww.com
Objective: The clinical value of stroke volume variations to assess intravascular fluid status
in critically ill patients is well known. Electrical impedance tomography is a noninvasive …

[HTML][HTML] The challenges and pitfalls of detecting sleep hypopnea using a wearable optical sensor: Comparative study

Z Zhang, M Qi, G Hügli, R Khatami - Journal of medical Internet research, 2021 - jmir.org
Background Obstructive sleep apnea (OSA) is the most prevalent respiratory sleep disorder
occurring in 9% to 38% of the general population. About 90% of patients with suspected …

Chest pulse-wave velocity: A novel approach to assess arterial stiffness

J Sola, O Chételat, C Sartori… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
Pulse-wave velocity (PWV) is considered as the gold-standard method to assess arterial
stiffness, an independent predictor of cardiovascular morbidity and mortality. Current …

Sensor device and method for measuring and determining a pulse arrival time (PAT) value

JSI CAROS, S Rimoldi - US Patent 10,165,951, 2019 - Google Patents
(57) ABSTRACT A method for measuring and determining a pulse arrival time (PAT) value of
a user using a sensor device having a photoplethysmographic (PPG) multichannel sensor …

Clinical validation of LTMS-S: A wearable system for vital signs monitoring

O Chételat, D Ferrario, M Proença… - 2015 37th Annual …, 2015 - ieeexplore.ieee.org
LTMS-S is a new wearable system for the monitoring of several physiological signals-
including a two-lead electrocardiogram (ECG)-and parameters, such as the heart rate, the …

Wearable PWV technologies to measure blood pressure: eliminating brachial cuffs

J Solà, M Proença, O Chételat - 2013 35th Annual International …, 2013 - ieeexplore.ieee.org
The clinical demand for technologies to monitor Blood Pressure (BP) in ambulatory
scenarios with minimal use of inflation cuffs is strong: new generation of BP monitors are …

Measuring arterial oxygenation in a high altitude field environment: comparing portable pulse oximetry with blood gas analysis

EM Ross, MJ Matteucci, M Shepherd… - Wilderness & …, 2013 - journals.sagepub.com
Objective High altitude environments present unique medical treatment challenges. Medical
providers often use small portable pulse oximetry devices to help guide their clinical …

Monitoring device and method for estimating blood constituent concentration for tissues with low perfusion

R Vetter, L Rossini, A Ridolfi, JSI CAROS… - US Patent …, 2017 - Google Patents
The present disclosure relates to a method for estimating blood constituent concentration of
a user under low perfusion conditions using a spectrophotometry-based monitoring device; …