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Real Time Vital Sign Monitoring Using NI Labview

Real Time Vital Sign Monitoring Using NI Labview by Narinder Parshad Chowdary, Asst.Professor, Dept. of Biomedical E ngineering, Mehran UET, Sindh, Know More Here:http://transformhealth-it.org/

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Real Time Vital Sign Monitoring Using NI Labview

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  1. REAL TIME VITAL SIGN MONITORING USING NI LABVIEW Engr. NarinderParshadChowdhry M.Sc. (e-Health & Telemedicine Systems) London, UK Assistant Professor Dept. of Biomedical Engineering Mehran UET, Jamshoro, Sindh 4th International Conference on Transforming Healthcare with IT 6-7th September Hyderabad India

  2. OUTLINE • Project Overview • Aim & objectives • NI LabView& DAQ System • Design of VIs & user interface • Methodology • Results • Conclusion

  3. Project Overview • Project deals with data acquisition & signal processing of vital signs using NI LabVIEW • Designed algorithms (Virtual Instruments VIs) of heart rate (HR), blood pressure (BP)& pulse oximetry (SpO2) • Firstly, BP is measured using pressure sensor, air cuff & constant air defalting valve • Secondly, our own designed sensor to measure the oxygen saturation, heart rate by using red LED, infrared LED & photodiode • Later, sensor is connected to NI DAQ & measurements are made

  4. Real time Vital Signs monitoring using NI LabVIEW AIM & OBJECTIVES Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • To acquire vital signs (physiological parameters) using biosensors • To interface the obtained data with NI DAQ System which converts it into digital format. • To link the DAQ System with NI LabVIEW and design an algorithm to measure real time data in graphical interface. • Finally, to design & develop a graphical user interface in LabVIEW to display the outputs.

  5. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • Blood pressure (BP), sometimes it is called arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels. • During each heartbeat, blood pressure varies between a maximum (systolic) and a minimum (diastolic) pressure. • Measurement Techniques • Invasive (Direct measurement) • Noninvasive (Indirect measurement) • Auscultatory Method • Oscillometric Method

  6. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • Auscultatory Method • Need Stethoscope • Analog Measurement • Oscillometric Method • Electronic Pressure sensor • Digital Measurement

  7. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Ranges of Blood Pressure in different Ages

  8. Real time Vital Signs monitoring using NI LabVIEW PULSE OXIMETRY (SpO2) Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • Pulse Oximetry is a device used to measure the oxygen level in our blood. • Our lungs have efficiency to diffuse oxygen into our blood hemoglobin to make it oxygenated hemoglobin (HbO2) and after the exchange of oxygen with Carbon-di-oxide occurs between tissue and blood then the blood becomes deoxygenated hemoglobin (Hb). • Measurement Technique • Oxygenated hemoglobin • Infrared LED • 940nm wavelength • Deoxygenated hemoglobin • Red LED • 660nm wavelength

  9. Real time Vital Signs monitoring using NI LabVIEW PULSE OXIMETRY (SpO2) Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Pulsatile & Non-pulsatile Absorption factors Oxygen level (SpO2)

  10. Real time Vital Signs monitoring using NI LabVIEW PULSE OXIMETRY (SpO2) Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Principle of sensor Current devices

  11. Real time Vital Signs monitoring using NI LabVIEW HEART RATE Introduction| Literature Review| Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Normal Ranges • Newborn baby - 120 to 160 • Baby aged from 1 to 12 months - 80 to 140 • Baby/toddler aged from 1 to 2 years - 80 to 130 • Toddler/young child aged 2 to 6 years - 75 to 120 • Child aged 7 to 12 years - 75 to 110 • Adult aged 18+ years - 60 to 100 • Adult athlete - 40 to 60 National Health Service, UK Current devices

  12. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE MECHANISM Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • Consist of: • Air Bulb • Pressure Control Valve • Hollow Rubber Tube • Pressure Cuff • Pressure Sensor

  13. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE MECHANISM Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|

  14. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| SpO2 & HEART RATE MECHANISM • Consist of: • Red Light Emitting Diode (Red LED) • Infrared Light Emitting Diode (IR LED) • Photodiode / Phototransistor • BPX43

  15. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| SpO2 & HEART RATE MECHANISM IR LED RED LED Finger Placement Phototransistor

  16. Real time Vital Signs monitoring using NI LabVIEW NI LABVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • National Instruments Corporation, or NI is an American Company which produces automated test equipment and virtual instrumentation software like LabVIEW. • LabVIEW (short for Laboratory Virtual Instrumentation Engineering Workbench) is a system design platform and development environment for a visual programming language from National Instruments. • Block Diagram • Front panel VI

  17. Real time Vital Signs monitoring using NI LabVIEW DAQ SYSTEM Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| • DAQ or Data acquisition System convert analog waveforms into digital values for processing with minimum noise/artifacts. • Sensors that convert physical parameters to electrical signals. • Analog-to-digital converters that convert electrical signals into digital values. • Components • NI Compact DAQ: USB based • Input / Output modules • Touch Screen Display

  18. Real time Vital Signs monitoring using NI LabVIEW ALGORITHM CONCEPT Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Enter the NAME and AGE START YES SpO2& HR Red LED ON Inflate the cuff up to 180mmHg Wait until Cuff is deflated up to 30mmHg 30 seconds 5 sec Photo detector detects the data HEART RATE Try Again BP STORE 1) 2) 3) Displayed & Saved in MS Excel SYSTOLIC Signal is acquired & send for computation Red LED OFF Further Computations NO DIASTOLIC IR LED ON Name & Age 5 sec Photo detector detects the data SpO2 Level FINISH IR LED OFF

  19. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| USER INTERFACE • PURPOSE • To get the Name and Age of the user or patient • Prompt User for input

  20. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| BLOOD PRESSURE • Pumping up to 180 mmHg • Acquiring data until pressure drops up to 30 mmHg • Further computations on acquired data

  21. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| BLOOD PRESSURE Whole VI

  22. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| SpO2 & HEART RATE 3. Turn OFF Red LED & Turn ON IR LED Acquire & Compute data Turn OFF IR LED Turn ON Red Led Acquire & Compute data HEART RATE

  23. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| SpO2 & HEART RATE Whole VI

  24. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| SAVING IN EXCEL Acquiring data from VI & Displaying it. Saving Data in MS Excel Option to Try Again

  25. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| FRONT PANEL

  26. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results| Conclusion| EXPERIMENTS Whole Appended signal of Blood Pressure

  27. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results| Conclusion| EXPERIMENTS Result saved in MS Excel

  28. Real time Vital Signs monitoring using NI LabVIEW Introduction| Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| CONCLUSION • Low cost Real time vital sign monitoring and easy to share and store • Can be used in user friendly / home environment • Can be used in rural/remote Areas • No need for particular atmosphere • User (patient) can check vital sign routinely or in case any abnormality occurs • User may contact with available expert doctor using Telemedicine

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