REAL TIME VITAL SIGN MONITORING USING NI LABVIEW
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This document describes a project to monitor vital signs in real time using NI LabVIEW. Sensors were used to acquire blood pressure, heart rate, and pulse oximetry data. The data was interfaced with a NI DAQ system and algorithms were designed in LabVIEW to measure and display the signals. The system was able to successfully acquire and process vital sign data and display results in real time using a graphical user interface in LabVIEW.
REAL TIME VITAL SIGN MONITORING USING NI LABVIEW
- 1. REAL TIME VITAL SIGN MONITORING USING NI LABVIEW Engr. Narinder Parshad Chowdhry 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. AIM & OBJECTIVES 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. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 5. BLOOD PRESSURE • 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 Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 6. BLOOD PRESSURE Auscultatory Method • Need Stethoscope • Analog Measurement Oscillometric Method • Electronic Pressure sensor • Digital Measurement Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 7. BLOOD PRESSURE Ranges of Blood Pressure in different Ages Stage Approximate age Systolic, mmHg Diastolic, mmHg Infants 1 to 12 months 75–100 50–70 Toddlers 1 to 4 years 80–110 50–80 Preschoolers 3 to 5 years 80–110 50–80 School age 6 to 13 years 85–120 50–80 Adolescents 13 to 18 years & > 95–140 60–90 Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 8. PULSE OXIMETRY (SpO2) Real time Vital Signs monitoring using NI LabVIEW • 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 Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 9. PULSE OXIMETRY (SpO2) Real time Vital Signs monitoring using NI LabVIEW Pulsatile & Non-pulsatile Absorption factors Oxygen level (SpO2) Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 10. PULSE OXIMETRY (SpO2) Real time Vital Signs monitoring using NI LabVIEW Principle of sensor Current devices Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 11. HEART RATE Real time Vital Signs monitoring using NI LabVIEW 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 Current devices NationalHealthService,UK Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 12. BLOOD PRESSURE MECHANISM Real time Vital Signs monitoring using NI LabVIEW Consist of: • Air Bulb • Pressure Control Valve • Hollow Rubber Tube • Pressure Cuff • Pressure Sensor Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 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 SpO2 & HEART RATE MECHANISM Consist of: • Red Light Emitting Diode (Red LED) • Infrared Light Emitting Diode (IR LED) • Photodiode / Phototransistor BPX43 Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 15. Real time Vital Signs monitoring using NI LabVIEW SpO2 & HEART RATE MECHANISM Finger Placement IR LED RED LED Phototransistor Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion|
- 16. NI LABVIEW Real time Vital Signs monitoring using 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. DAQ SYSTEM Real time Vital Signs monitoring using NI LabVIEW 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. ALGORITHM CONCEPT Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| START Enter the NAME and AGE Inflate the cuff up to 180mmHg Wait until Cuff is deflated up to 30mmHg Signal is acquired & send for computation SYSTOLIC DIASTOLIC STORE 1)2)3)Name&AgeBP 30seconds Red LED ON Photo detector detects the data Red LED OFF IR LED ON Photo detector detects the data IR LED OFF FurtherComputations HEARTRATESpO2Level 5sec5sec SpO2&HR Displayed&SavedinMSExcel TryAgain YESNO FINISH
- 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 1. Turn ON Red Led 2. Acquire & Compute data 3. Turn OFF Red LED & Turn ON IR LED 4. Acquire & Compute data 5. Turn OFF IR LED 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 1. Acquiring data from VI & Displaying it. 2. Saving Data in MS Excel 3. 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