Real time Vital Signs Monitorong Using NI LabVIEW

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ABSTRACT

It is undeniable that nowadays people are more aware of the health conditions. One of the most widely used methods to test the health conditions of an individual is to measure user blood pressure, oxygen level and heart rate. There is a huge market for non-invasive methods of measurement of these vital signs. The objective of this project is to design a algorithm in a well known NI platform (NI LabVIEW), which can easily be used with cheap, low powered and non-intrusive sensors. This project specifically deals with the data acquisition and signal conditioning of three vital signs: blood pressure, oxygen level and heart rate and also with the designing of sensors to acquire them and interfacing them with NI Data Acquisition System (DAQ). The theory, design procedures, experimental results and discussions of these systems are presented.

AIM AND OBJECTIVE
The aim of this project is to design a new algorithm to measure three biological parameters (Blood Pressure, Heart Rate & Pulse Oximetry SpO2) together using VI LabVIEW. It provides data acquisition system for collection, management, control and analysis of these parameters.
To obtain this objective four things are required to work properly which are given below:
1. To acquire vital signs (physiological parameters) using biosensors.
2. To interface the obtained data with NI DAQ System which converts it into digital format.
3. To link the DAQ System with NI LabVIEW and design an algorithm to measure real time data in graphical interface.
4. Finally, to design & develop a graphical user interface in LabVIEW to display the outputs.

Published in: Education, Technology, Business

Real time Vital Signs Monitorong Using NI LabVIEW

  1. 1. REAL TIME VITAL SIGNS MONITORING USING NI LABVIEW Muhammad Talha (Group Leader) 09BM04 Awais Mumtaz 09BM03 Ubaid Shaikh 09BM30 Jibran Memon 09BM19 Supervised by Engr. N.P. Chowdhry Assistant Professor Co-supervised by Engr. HIBA PERVAIZ Lab Supervisor
  2. 2. CONTENTS  Introduction  Literature Review  Hardware  NI Software & DAQ System  Methodology  Result  Conclusion • Introduction • Aim & Objective • Problem statement • Blood Pressure • Pulse Oximetry (SpO2) • Heart Rate • Blood pressure mechanism • SpO2 & Heart rate mechanism • Algorithm Concept • User Interface • Blood Pressure • SpO2 & Heart rate • Saving in Excel • Experiment • Cost Ratio • NI LabVIEW • DAQ System
  3. 3. Real time Vital Signs monitoring using NI LabVIEW INTRODUCTION Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  4. 4. INTRODUCTION • Biomedical Engineering is a field of research of high importance in any sense around the world. It is also a very sensitive field of engineering measurement where delay of a second’s can cause someone life’s to death. That’s why real time computing has great importance in the field of biomedical engineering. • This project specifically deals with the data acquisition and signal processing of three vital signs: heart rate, blood pressure, and pulse oximetry (SpO2) using NI LabVIEW. In this project we have designed a signal processing algorithm by considering various biological signal computations. Through this algorithm user can measure his/her own vital signs with low cost sensors. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  5. 5. AIM & OBJECTIVE • The aim of our project was to design a new algorithm to measure three biological parameters (Blood Pressure, Heart Rate & Pulse Oximetry SpO2) together using NI LabVIEW. • To obtain this objective four things were required to work properly which are given below:  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| Q&A
  6. 6. PROBLEM STATEMENT • Measuring BP without stethoscope. • Providing Biological parameters in digital format so it can be easily stored and shared. • Diagnosing lungs and cardiac problems. • Low cost. • Can easily be used in rural areas. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  7. 7. LITERATURE REVIEW Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  8. 8. 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| Q&A
  9. 9. 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| Q&A
  10. 10. 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| Q&A
  11. 11. 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 or we can say that blood contains deoxygenated hemoglobin (Hb). Measurement Technique • Beer-Lambert Law IOUT = IIN e-A • Oxygenated hemoglobin  Infrared LED  940nm wavelength • Deoxygenated hemoglobin  Red LED  660nm wavelength Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  12. 12. 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| Q&A
  13. 13. 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| Q&A
  14. 14. HEART RATE Real time Vital Signs monitoring using NI LabVIEW • Heart rate is determined by the number of heartbeats per unit of time, typically expressed as beats per minute (BPM), it can vary with as the body's need for oxygen changes, such as during exercise or sleep. • The measurement of heart rate is used by medical professionals to assist in the diagnosis and tracking of medical conditions. Heart rate is measured by finding the pulse of the body. This pulse rate can be measured at any point on the body where an artery's pulsation is transmitted to the surface. Some commonly palpated sites 1. The ventral aspect of the wrist on the side of the thumb (radial artery) 2. The ulnar artery 3. The neck (carotid artery), 4. The inside of the elbow, or under the biceps muscle (brachial artery) 5. The groin (femoral artery) 6. The chest (aorta), which can be felt with one's hand or fingers. Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  15. 15. 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| Q&A
  16. 16. Real time Vital Signs monitoring using NI LabVIEW HARDWARE Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  17. 17. 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| Q&A
  18. 18. Real time Vital Signs monitoring using NI LabVIEW BLOOD PRESSURE MECHANISM Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A
  19. 19. 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| Q&A
  20. 20. 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| Q&A
  21. 21. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A NI SOFTWARE & DAQ SYSTEM
  22. 22. NI LABVIEW Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A • 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
  23. 23. DAQ SYSTEM Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A • 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
  24. 24. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A METHODOLOGY
  25. 25. ALGORITHM CONCEPT Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A 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
  26. 26. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A USER INTERFACE PURPOSE • To get the Name and Age of the user or patient • Prompt User for input
  27. 27. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A BLOOD PRESSURE • Pumping up to 180 mmHg • Acquiring data until pressure drops up to 30 mmHg • Further computations on acquired data
  28. 28. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A BLOOD PRESSURE Whole VI Sub VI
  29. 29. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A 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
  30. 30. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A SpO2 & HEART RATE Whole VI Sub VI
  31. 31. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A SAVING IN EXCEL 1. Acquiring data from Sub VI & Displaying it. 2. Saving Data in MS Excel 3. Option to Try Again
  32. 32. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A FRONT PANEL
  33. 33. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A RESULT
  34. 34. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A EXPERIMENTS Whole Appended signal of Blood Pressure
  35. 35. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A EXPERIMENTS Result saved in MS Excel
  36. 36. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A CONCLUSION
  37. 37. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A CONCLUSION • Gives real time measurements and easy to share and store. • Can be used in User- friendly / home environment. • Can be used in Rural Areas. • No need for particular atmosphere. • Can be used by deaf persons. • Less expensive • Gain experience about different health conditions and their measuring techniques. • How to interface Physical data with digital systems. • How to search any topic from different aspect and sources.
  38. 38. Real time Vital Signs monitoring using NI LabVIEW Introduction | Literature Review | Hardware |NI Software & DAQ System| Methodology | Results | Conclusion| Q&A Q & A

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