1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Reg-AprMay'07-Set no 1
Set No. 1
IV B.Tech II Semester Regular Examinations, Apr/May 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . .
1. (a) What are the different types of muscles? Explain the importance of motor unit in the muscular contraction.
(b) What is meant by central nervous system? Explain the different parts of it and their activity. [8+8]
2. (a) With the help of a neat sketch explain the functioning of the heart.
(b) With the help of a neat diagram explain the working principle of heart lung machine. [8+8]
3. (a) Draw the circuit diagram of an ECG isolation amplifier and explain its working.
(b) Explain the principle of operation of a biomedical pre amplifier with neat diagram. [8+8]
4. (a) What is bio-feedback instrumentation. Explain how it is used in ECG and EMG.
(b) What are the differences in amplification and bandwidth requirement of amplifiers for ECG and EMG? [8+8]
5. (a) Explain the lead configuration in ECG with neat sketches
(b) Draw the basic building blocks of electro cardiograph and explain. [8+8]
6. (a) With the help of a neat block diagram explain the operation of a visual and auditory evoked potential system.
(b) Given that EEG output is 51 mVp−p (to a 100 μVp−p differential EEG input) and the noise output is 0.005 mVp−p (to a 100 μVp−p common mode noise input). Calculate the CMRR. [10+6]
7. (a) Compare the merits and demerits of both internal and external pace makers.
(b) Write short notes on blood pressure monitor. [8+8]
8. (a) What is the basic principle of computerized tomography ? Explain.
(b) Write a note on CT number scale used in CT. [8+8]
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Reg-AprMay'07-Set no 2
Code No: RR420403
Set No. 2
IV B.Tech II Semester Regular Examinations, Apr/May 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) Give an account on the different chemical compositions in the intra and extra cellular fluids and their effects in the case of blood serum.
(b) How does the blood circulate through out the body. [8+8]
2. (a) Give the classification of heart sounds based on their origin and explain briefly about each.
(b) Explain how the heart sounds are measured or recorded? [10+6]
3. (a) What is Metal-Electrolyte interface? Explain.
(b) Discuss the different tape recording methods used in medical systems. List its advantages and disadvantages? [6+10]
4. (a) Draw and explain a typical strength-duration curve.
(b) Derive the expressions for rheobase and chronaxie. [8+8]
5. (a) Explain the Frank lead system.
(b) Explain how this Frank lead system is different from the other lead systems? [8+8]
6. (a) Explain the system of placement of electrodes while recording the brain activity of a human.
(b) Describe the features EEG
(c) What are the characteristics of an abnormal EEG [6+5+5]
7. (a) With the help of a neat block diagram explain the working of an internal pace maker.
(b) With a neat diagram explain the operation of an Arrythmia monitor. [8+8]
8. Write short notes on:
(a) Displays used in patient monitoring system.
(b) Calibration and repeatability of patient monitoring equipment. [8+8]
. . . . . .
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Reg-AprMay'07-Set no 3
Code No: RR420403
Set No. 3
IV B.Tech II Semester Regular Examinations, Apr/May 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) Explain how action potentials are generated in the muscles. Also explain Depolarization and Repolarization of cells.
(b) What are the different types of Bioelectric potentials generated in the body? Explain. [8+8]
2. (a) With the help of a neat sketch explain about the physiology of the heart.
(b) What are the different parts and how bioelectrical potentials are generated within it? [8+8]
3. (a) What are the different types of electrodes? Discuss the advantages and disadvantages of them?
(b) What are the various errors associated with electrodes in measurement of body potential. [10+6]
4. (a) Explain the qualitative requirements of the different blocks of a muscle stimulator.
(b) Explain the various types of stimulating and recording electrodes used in a muscle stimulator. [8+8]
5. (a) Explain in detail the genesis of the ECG signal.
(b) Draw and explain the Einthonen triangle and prove the Einthoren triangle. [6+10]
6. (a) Explain the system of placement of electrodes while recording the brain activity of a human.
(b) Describe the features EEG
(c) What are the characteristics of an abnormal EEG [6+5+5]
7. (a) With a circuit diagram explain the working of a short wave diathermy unit.
(b) Explain the terms w.r.t shortwave diathermy treatment:
i. Condenser method.
ii. Inductive method. [8+8]
8. (a) Explain the types of leakage currents.
(b) What are the precautions to be taken to minimize electric shock hazards? [8+8]
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Reg-AprMay'07-Set no 4
Code No: RR420403
Set No. 4
IV B.Tech II Semester Regular Examinations, Apr/May 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) With the help of a neat diagram explain the relationship between the action potential and muscle contraction.
(b) What is stimulus threshold? Explain the terms absolute refractory period and relative refractory period. [6+10]
2. (a) With the help of a neat sketch explain about the physiology of the heart.
(b) What are the different parts and how bioelectrical potentials are generated within it? [8+8]
3. (a) Discuss the significance of time constant, damping coefficient and frequency response with respect to biomedical transducers.
(b) What are active and passive transducers? [10+6]
4. (a) Describe the components of a typical EMG recording system.
(b) What are the technical differences between the recorders used for EMG and ECG? [8+8]
5. (a) Explain the Frank lead system.
(b) Explain how this Frank lead system is different from the other lead systems? [8+8]
6. (a) Explain the system of placement of electrodes while recording the brain activity of a human.
(b) Describe the features EEG
(c) What are the characteristics of an abnormal EEG [6+5+5]
7. (a) Write a note on the power sources employed in implantable pacemakers.
(b) With a functional block diagram, explain programmable pacemaker. [8+8]
8. (a) Explain the principle behind the generation and detection of ultrasound.
(b) Explain with a neat diagram how ultra sounds are used in medical field. [8+8]
. .. . . .
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Sup-Jun'07-Set no 1
Code No: RR420403
Set No. 1
IV B.Tech II Semester Supplementary Examinations, June 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) Explain in detail about the electro physical properties of different types of muscles.
(b) Explain how the action potentials are transmitted through the muscles. [8+8]
2. (a) With the help of a neat block diagram explain the principle of operation of heart lung machine.
(b) Explain how the ECG wave form helps in assessing the functioning of the heart. [8+8]
3. (a) Give the salient features of needle electrodes.
(b) With necessary sketches explain how contact impedance varies with electrolyte concentration and time? [8+8]
4. (a) Describe the components of a typical EMG recording system.
(b) What are the technical differences between the recorders used for EMG and ECG? [8+8]
5. (a) Explain the lead configuration in ECG with neat sketches
(b) Draw the basic building blocks of electro cardiograph and explain. [8+8]
6. (a) List out typical EEG recording artifacts.
(b) With a neat block diagram explain the principle of operation of an EEG telemetry system. [6+10]
7. (a) Explain in detail the defibrillation with necessary circuit and waveform.
(b) With a neat diagram describe the working of shortwave diathermy. [8+8]
8. (a) Explain the types of leakage currents.
(b) What are the precautions to be taken to minimize electric shock hazards? [8+8]
. . . . . .
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Sup-Jun'07-Set no 2
Code No: RR420403
Set No. 2
IV B.Tech II Semester Supplementary Examinations, June 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) Draw the wave-form for the active potential and explain the same.
(b) With neat sketch explain the terms relative refractory period and absolute refractory period. [6+10]
2. (a) With the help of a neat sketch explain about the physiology of the heart.
(b) What are the different parts and how bioelectrical potentials are generated within it? [8+8]
3. (a) Define Half cell potential. What are polarizable and non polarizable electrodes.
(b) What are the uses of the electrode paste applied during biomedical recording? [10+6]
4. (a) Draw the block diagram and explain the recording set-up for EMG recording.
(b) Discuss about the use of integrators in EMG. [10+6]
5. (a) Give the types of ECG recorders. Discuss any two types of recorders in detail.
(b) What is the needs for intensive-care monitoring system? Discuss the basis and essential components present in the cardiac-care unit. [8+8]
6. (a) Explain the clinical value of the EEG and also describe the various characteristics of an abnormal EEG.
(b) Discuss about the type of electrodes used in the measurement of EEG and also different locations of these electrodes on the skull in order to take the EEG. [8+8]
7. (a) Write a note on the power sources employed in implantable pacemakers.
(b) With a functional block diagram, explain programmable pacemaker. [8+8]
8. (a) Explain the single channel telemetry system.
(b) Describe the working of FM Telemetry transmitter used in medical field. [8+8]
. . . . . .
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Sup-Jun'07-Set no 3
Code No: RR420403
Set No. 3
IV B.Tech II Semester Supplementary Examinations, June 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) What is meant by central neurons system? Explain the different parts of it and their activity.
(b) What are bioelectric potentials? Discuss the frequency and voltage range of ECG, EEG, EMG and ERG signals. [6+10]
2. Write notes on any two of the following:
(a) Sources of Bioelectric potentials
(b) Electro physical properties of muscles. [8+8]
3. (a) Discuss the significance of time constant, damping coefficient and frequency response with respect to biomedical transducers.
(b) What are active and passive transducers? [10+6]
4. (a) Explain the measurement of conduction velocities in motor nerves.
(b) Discuss any two types of FM transmitters with their merits & demerits, used for the transmission of EMG signal. [6+10]
5. (a) Discuss about the computer analysis of ECG.
(b) With a neat block diagram explain the operation of an ECG equipment. [8+8]
6. (a) With the help of a neat block diagram explain the operation of a visual and auditory evoked potential system.
(b) Given that EEG output is 51 mVp−p (to a 100 μVp−p differential EEG input) and the noise output is 0.005 mVp−p (to a 100 μVp−p common mode noise input). Calculate the CMRR. [10+6]
7. (a) What is pacemaker? Explain its principle of working and types of pace makers.
(b) Describe with the help of a neat diagram the working of a blood flow and blood pressure monitor. [8+8]
8. (a) Describe a digital computer along with its biomedical applications.
(b) Describe any one of the biomedical equipment controlled by a microprocessor. [8+8]
. . . . . .
1: Total Question Paper of JNTU-IV B.Tech-ECE-Bio Medical Instrumentation-Sup-Jun'07-Set no 4
Code No: RR420403
Set No. 4
IV B.Tech II Semester Supplementary Examinations, June 2007
BIO MEDICAL INSTRUMENTATION
(Electronics & Communication Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . . .
1. (a) Explain how action potentials are generated in the muscles. Also explain Depolarization and Repolarization of cells.
(b) What are the different types of Bioelectric potentials generated in the body ? Explain. [8+8]
2. (a) With the help of a neat block diagram explain the principle of operation of heart lung machine.
(b) Explain how the ECG wave form helps in assessing the functioning of the heart. [8+8]
3. (a) What are the different interfaces established when a surface electrode is used. Explain?
(b) What is a Biochemical Transducer. Explain? [10+6]
4. (a) Describe the components of a typical EMG recording system.
(b) What are the technical differences between the recorders used for EMG and ECG? [8+8]
5. Write short notes on
(a) Electrodes and leads in ECG
(b) Einthonen triangle. [8+8]
6. (a) With neat circuit diagrams explain the principle of operation of the following EEG preamplifiers.
i. Single ended preamplifier
ii. Differential preamplifier
(b) With neat diagrams distinguish between unipolar, average and bipolar EEG recording modes. [8+8]
7. Explain the following with neat block diagrams:
(a) Ventricular synchronous demand pacemaker.
(b) Atrial triggered pacemaker. [8+8]
8. (a) What is biotelemetry? Discuss the applications of telemetry in ECG.
(b) Explain the principle used in transmission of physiological signals over the telephone lines. [8+8]
. . . . . .
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