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Cuffless blood pressure monitoring
CSEM catalog of technologies
MEDICAL TECHNOLOGIES
APPLICATIONS
CSEM Chest PWV technology relies on the principle of pulse wave velocity (PWV):
estimates of Blood Pressure (BP) are obtained from proprietary measurements
of the transit time of arterial pulses travelling from the ascending aorta towards
the vasculature of the upper-thoracic skin.
SCIENCE
Example of performance of CSEM
Chest PWV technology to estimate
mean BP when compared to
invasive arterial line measurements
performed on an anesthetized patient.
VALIDATION
Smart textiles for 24/7
ambulatory BP monitoring
Smart patches for 24/7
ambulatory BP monitoring
Features
• Requires measurement of ECG,
bioimpedance and PPG at the chest
• Measures beat-to-beat central pulse
transit time values
• Estimates beat-to-beat Mean Blood
Pressure values, after calibration
1. CHEST PWV TECHNOLOGY
Form factors
• Garments integrating sensing
elements at thorax
• Set of patches integrating sensing
elements at the thorax
Legal
• Patent portfolio covering cooperative
sensor technology that combines ECG,
bioimpedance and PPG sensors
• Patent portfolio covering pulse transit
time algorithms
• Available proprietary ASIC solutions
CSEM OBPMTM technology relies on the principle of pulse wave analysis (PWA):
estimates of Blood Pressure (BP) are obtained via a CSEM-proprietary analysis
of arterial pulsatility patterns at body locations such as the wrist or the fingertip.
SCIENCE
Example of performance of CSEM
OBPMTM technology to estimate
systolic BP when compared to
invasive arterial line measurements
performed on an anesthetized patient.
VALIDATION
Features
• Requires measurement of arterial
pulsatility, via photo-plethysmography
(PPG) in transmission or reflectance mode
• Measures physiological features from
pulsatility patterns
• Estimates beat-to-beat Systolic Blood
Pressure values, after calibration
Form factors
• Reflective PPG sensors integrated in
a wrist watch device
• Re-analysis of PPG signals from
routinely-used pulse oximeters
• Reflective optical measurements
from a smartphone camera
Legal
• Patent portfolio covering Pulse Wave
Analysis algorihtms
• OBPM is a Trademark of CSEM
Smartwatches for
24/7 ambulatory BP
monitoring
Cuffless ambulatory
BP monitoring during
sleep
Continuous BP trend
monitoring during
anesthesia from
PulseOx raw signals
Ambulatory BP
monitoring via a
smartphone camera
APPLICATIONS
MEDICAL TECHNOLOGIES
2. OBPMTM TECHNOLOGY
CSEM SA
Rue Jaquet-Droz 1
CH-2002 Neuchâtel
T +41 32 720 5111
F +41 32 720 5700
www.csem.ch
info@csem.ch
CONTACT