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2003 & 1997 Course Biomedical Instrumentation (Elective)

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Total No. of Questions : 12] P1561 [Total No. of Pages : 3 [3764]-284 B.E. (Instrumentation & Control) BIOMEDICAL INSTRUMENTATION (1997 & 2003 Course) (Elective) (406264) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) Answer three questions from each section. Answers to the two sections should be written in separate books. Neat diagrams must be drawn wherever necessary. Figures to the right indicate full marks. Assume suitable data, if necessary. SECTION - I Q1) a) Explain Electrode offset potential? How effect of electrode offset potential is overcome. Explain the various properties that bio-electrode should possesses. [8] b) Define bio electrode. Name various types of basic bio electrodes used for bioelectric potential measurements. Explain the necessity of microelectrode, Micropipette electrode. [8] OR Q2) a) Define and discuss the term Biosensors . [6] b) What is a half cell potential? Draw and explain electrical equivalent circuit of electrode jelly and Tissue. [8] c) What are the important of use of Electrolytic Jelly at the skin-electrode interface? [2] Q3) a) Explain in detail the pumping action of the heart and the genesis of ECG [8] waveform. b) Discuss the various ECG leads configuration in detail. OR [8] Q4) a) List out various bioelectric preamplifiers. Explain chopper amplifier in detail. [10] b) Draw and explain Heart Rate meter. [6] P.T.O. Q5) a) Enlist two important techniques used in sphygmomanometer BP measurement. Explain the same method of BP measurement along with its advantages and disadvantages. [10] b) List out various methods used for cardiac output measurement. Explain indicator dilution method with dilution curve. [8] OR Q6) a) Explain electromagnetic blood flow measurement with neat diagram. [8] b) Discuss Doppler shift Ultrasonic blood flow measurement along with neat diagram. [8] c) List out the microphones used in phonocardiograph. [2] SECTION - II Q7) a) What is EEG? Enlist various illness and diseases for which EEG is effectively used. Explain the EEG montage system. [10] b) Explain the various types of EEG Electrodes. [6] OR Q8) a) Draw and explain various parts of Brain stem. [8] b) Draw and explain the structure of neuron. [6] c) Define efferent and afferent nerves? [2] Q9) a) Enlist various ophthalmic instruments & briefly explain instrument used for measurement of IOP. [10] b) Explain the various vision errors in human vision system and also explain [4] the way of elimination of the same. c) Suggest suitable devices that are used to recover the percentage losses in EAR or EYE, if some residual capacity has been remain with these organs. [2] OR Q10) a) Define a Hearing threshold . Explain the speech audiometer and pure tone audiometer. [10] b) What are three main sections of Human auditory system? Explain the impedance matching in human hearing phenomenon. [6] [3764]-284 2 Q11) a) Explain Wedge Spiro meter for respiratory measurement. Explain the following terms with respect to respiratory measurement. [10] i) RV. ii) ERV. iii) TLC. iv) TV. b) Why inspired and expired gas analysis is of great importance. Draw and explain Thermal conductivity analyzer. [8] OR Q12) a) State the condition of patient at which support of ventilator is essential? What is role of nebulizers and aspirators in ventilator? [10] b) Explain the various methods of accident prevention in medical equipments. [8] [3764]-284 3

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