Sensirion Holding AG · SIX:SENS
Sensirion — Technical Presentation (March 2021)
26 slides from Sensirion's technical presentation, March 2021
Slide 1: Flow Sensors for Medical Ventilation: All You Need to Know
Flow Sensors for Medical Ventilation All You Need to Know Lucas Oehen, Medical Market Manager Stäfa CH, March 2021 © Copyright Sensirion AG, Switzerland Confidential
Slide 2: Iron Lung – The Origin of Mechanical Ventilation
Iron Lung – The Origin of Mechanical Ventilation ▪ Considered as the first ventilator ▪ First treatment in 1928 of a child suffering from polio ▪ Widely available around 1930 for the price of a house ($1’500) ▪ Operating principle: negative pressure ventilator, very close to human breathing © Copyri
Slide 3: Mechanical Ventilation Introduction
Mechanical Ventilation Introduction A mechanical ventilator is a machine that assists or takes over spontaneous breathing when a person is not able to breathe enough on their own. Modern ventilators push a mixture of air and oxygen into the patient’s lungs to get oxygen into the body → they are posi
Slide 4: Flow Sensors in Ventilators
Flow Sensors in Ventilators Complex system in which flow needs to be measured at various instances: ▪ Inspiratory gas mixing Air and O2 Inspiratory Inspiratory total flow Air Total ▪ Proximal O2 ▪ Expiratory Inspiratory Limb Proximal In addition, airway pressure needs to be Expiratory determined and
Slide 5: Common Challenges in Ventilation
Common Challenges in Ventilation Humidity, condensation at coolest part Contamination from patient solved with Sensirion’s flow sensors Fragile, frequent handling and processing Calibration during production & operation © Copyright Sensirion AG, Switzerland Confidential
Slide 6: Making The World Breathe Easy
Making The World Breathe Easy With Our Flow Sensors Strengths in Ventilation ▪ Digital CMOSens Technology
Slide 7: CMOSens Technology for Flow Sensors
CMOSens® Technology for Flow Sensors Thermal Measurement Principle CMOSens: Sensor + signal processing on one single CMOS chip Gas/Liquid Flow Memory ADC Signal Processing Amp ▪ Heating element at the center of a pressure- stabilized membrane and 2 temperature sensors ▪ The flow over the membrane ca
Slide 8: CMOSens: Next-Generation Hotwire with Added Benefits
CMOSens®: Next-Generation Hotwire with Added Benefits Sensirion’s What to look out for CMOSens® Hotwire Hotwire CMOSens® ▪ Fully calibrated / temp. compensated ✓ × ▪ Bi-directional measurement ✓ × ▪ No zero-point offset ✓ × ▪ No drift over time / stability ✓ × ▪ No need for recalibration ✓ × ▪ No po
Slide 9: Making The World Breathe Easy
Making The World Breathe Easy With Our Flow Sensors Strengths in Ventilation ▪ Digital CMOSens Technology ▪ Dedicated Sensor Portfolio
Slide 10: Broad and Dedicated Sensor Portfolio
Broad and Dedicated Sensor Portfolio ▪ Analog / digital ▪ Different form factors ▪ Low and high pressure SFM30xx SFM31xx SFM3200 SFM4x00 SFM3200-AW Additionally, inspiratory sensors when used with an HME filter Adults Neonates SFM3300-AW/D SFM3400-AW/D © Copyright Sensirion AG, Switzerland Confident
Slide 11: Making The World Breathe Easy
Making The World Breathe Easy With Our Flow Sensors Strengths in Ventilation ▪ Digital CMOSens Technology ▪ Dedicated Sensor Portfolio ▪ Robustness
Slide 12: Challenge in Ventilation: Humidity
Challenge in Ventilation: Humidity In heated breathing circuits the sensor is the coolest part and prone to condensation. All flow sensor solutions suffer from this tough use case! Coolest parts in circuit Inspiratory Limb Proximal Expiratory Expiratory Limb Humidifier © Copyright Sensirion AG, Swit
Slide 13: Condensation: An Issue of the Past
Condensation: An Issue of the Past Integrated heater on the sensor which avoids condensation in the sensor! Operation without the heater: artefacts caused by condensed water droplets Operation with 100% heater: reliable & accurate flow reading of humid gases © Copyright Sensirion AG, Switzerland Con
Slide 14: Clip-On Interface with Advanced Features
Clip-On Interface with Advanced Features Proximal and expiratory sensors get contaminated and need to be replaced / cleaned. Clip-On interface with integrated electronics offering ▪ easy and reliable de- and re-connection Pressure sensor port ▪ control of sensor heater ▪ optional pressure sensor for
Slide 15: Challenge: Contamination of Proximal and Expiratory Sensors
Challenge: Contamination of Proximal and Expiratory Sensors Re-Use: SFM3x00-AW Single-Use: SFM3x00-D Robust: Autoclavable / Cleanable ▪ High quality PPSU housing & sealing ▪ Single-use sensor (MABS housing) ▪ 95% exceed 30 autoclave cycles ▪ Optimized for high volumes and low cost ▪ 100 Cidex cycles
Slide 16: Proven Robustness in the Field
Proven Robustness in the Field © Copyright Sensirion AG, Switzerland Confidential
Slide 17: Making The World Breathe Easy
Making The World Breathe Easy With Our Flow Sensors Strengths in Ventilation ▪ Digital CMOSens Technology ▪ Dedicated Sensor Portfolio ▪ Robustness ▪ Superior Accuracy
Slide 18: What Makes Our Sensors so Accurate? What are Your Benefits?
What Makes Our Sensors so Accurate? → What are Your Benefits? Ready-to-use signal Fully Calibrated (we calibrate every sensor for you) Real-time tidal volume CMOSens® Accurate ventilation control in Stability / control and monitoring Technology Reliability harsh environments Reduced service efforts
Slide 19: Common Challenges in Ventilation Solved with Sensirion
Common Challenges in Ventilation → Solved with Sensirion Humidity, condensation at coolest part → Local heating within sensor Contamination from patient → Disposable and washable/autoclavable sensors Fragile, frequent handling and processing → Easy & reliable connection, robust design, proximal pres
Slide 20: Making The World Breathe Easy: How Can We Help You as an Engineer
Making The World Breathe Easy With Our Flow Sensors How Can We Help You as an Engineer → www.sensirion.com/vents
Slide 21: www.sensirion.com/vents - All You Need to Know About Ventilation
www.sensirion.com/vents - All You Need to Know About Ventilation ❖ Why Sensirion? ❖ Where Do You Want to Measure Flow? ❖ Inspiratory Flow Measurement ❖ Expiratory Flow Measurement ❖ Proximal Flow Measurement ❖ Sensor Evaluation Kits ❖ Important Documents: Engineering Guide ❖ Datasheets ❖ Application
Slide 22: Engineering Guide – All You Need to Know
Engineering Guide – All You Need to Know Guides you through the challenge of flow measurement From A to Z ▪ A Available sensors and selection ▪ I Initial test setup ▪ M Mechanical design-in recommendations ▪ R Resources (App Notes, 3D models, Datasheets..) ▪ W Wetted material & regulatory informatio
Slide 23: Always a Good Fit in Ventilators and Anesthesia Machines
Always a Good Fit in Ventilators and Anesthesia Machines © Copyright Sensirion AG, Switzerland Confidential
Slide 24: Ventilation: Take-Away Message
Ventilation: Take-Away Message Application Assists or takes over breathing function of a patient Expiratory Requirements Accurate control of breathing profile and oxygen – air mixing Your advantages with Sensirion’s flow & humidity Proximal sensors ▪ Solves humidity and condensation issues ▪ Dedicat
Slide 25: Testimonials
Testimonials “ I am always impressed with Sensirion’s technical prowess and willingness to look at options. The current work on developing a sensor has shown that Sensirion is an excellent partner for GE. Principal Engineer, ” “ They are a pioneer of innovation in this space and their expertise and
Slide 26: Lucas Oehen, Medical Market Manager
Lucas Oehen, Medical Market Manager www.sensirion.com/vents [email protected] www.sensirion.com © Copyright Sensirion AG, Switzerland Confidential