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2003 Course Advanced Biomedical Instrumentation

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Total No. of Questions : 12] P1165 [Total No. of Pages : 2 [3664]-253 B.E. (Instrumentation & Control) ADVANCED BIOMEDICAL INSTRUMENTATION (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) 6) Answer any 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. Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. Assume suitable data, if necessary. SECTION - I Q1) a) What are different electrode configurations used in cutting and coagulation mode. [4] b) With the help of neat diagram, explain the working of R wave inhibited pacemaker. [8] Mention the advantages and disadvantages of the same. [4] OR Q2) a) What is the function of cardiotachometer? Draw the block diagram. Discuss the working of an integrating cardiotachometer. b) Draw four different types of waveforms used in defibrillator. Explain each waveform with its specifications. [1] [3] [4] [4] [4] Q3) a) What is Electrophoresis? [2] Explain its applications in biomedical field? [6] b) State and explain different methods of modulation used in telemetry. [8] OR Q4) a) Explain coulter counter used for blood cell counting. [8] What are the problems associated with it? [2] b) A cardiac patient in rural area is being treated from distant location. What is the essential data that must be transmitted during telemedicine.[6] P.T.O. Q5) a) Explain the principle of X ray generation with the help of neat diagram.[6] b) What are image artifacts? [4] c) What is Hounsfield number? [3] Specify Hounsfield number for water, muscle, bone, fat and air? [5] OR Q6) a) Draw the block diagram of basic CT scanner. Explain its working. b) What are different front panel controls for X ray machine. Explain their function in detail. [4] [5] [3] [6] SECTION - II Q7) a) Draw the diagram of Rectilinear Scanner. Describe the instrumentation in rectilinear scanner. b) What is A scan display in Ultrasound imaging? State the applications of A scan in biomedical field. [3] [5] [5] [5] OR Q8) a) Explain the terms gyromagnetic ratio, T1, T2 in respect to MRI. b) Write a note on Positron Emission Tomography. [8] [10] Q9) a) What is the thermal and nonthermal interaction of laser with tissue. [6] List one application of each. [2] b) Describe the instrumentation in microwave diathermy. [8] OR Q10) a) Explain the working of gastro-endoscope with the help of a suitable diagram. [8] b) List various applications of lasers in Dermatology and explain any one of them in detail. [8] Q11) a) With the help of neat diagram explain how the natural kidney works. [6] List different tests to be performed to check kidney functioning. [4] b) Which materials are used for Wheelchair and why? [6] OR Q12) a) What is Lithotripsy? [2] Draw the waveform showing important parameters used in lithotripsy.[4] What is the role of X ray imaging in lithotripsy? [4] b) Compare Coil Type Dialyzer and Parallel Plate Dialyzer. [6] [3664]-253 2

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