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1997 Course Medical Electronics - I

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Total No. of Questions : 10] [Total No. of Pages : 2 [3764] - 1045 P 1602 B.E. (Electronics) MEDICAL ELECTRONICS - I (1997 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any 3 questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. SECTION - I Q1) a) b) Name the different types of electrodes used for ECG measurement. Explain any one in detail. [8] Draw the explain the working of ECG Machine. [8] Q2) a) b) Explain the origin of the bioelectric signal. Explain the direct method of Blood pressure measurement. [8] [8] Q3) a) Explain how to calculate the following parameters i) Mean cell volume. ii) Mean cell hemoglobine. iii) Mean cell hemoglobine concentration. iv) Mean platelet volume. Explain the working of blood cell counter. [8] [8] b) Q4) a) b) Explain the PQRST waveform with time intervals. [8] Describe the strain gauge pressure transducer with the help of neat diagram. [8] Q5) Write short notes on : a) Korotkoff sounds. b) Action and Resting potential. c) Micro electrodes. [18] P.T.O. SECTION - II Q6) a) b) What is Cardiac Pacemaker? Explain any one in detail. [8] Explain the working of Blood gas analyser with the help of neat diagram. [8] Q7) a) b) State the properties of X-rays and explain how X-rays are produced.[8] Explain the working of muscle stimulator with the help of neat diagram. [8] Q8) a) What is a Diathermy unit? Explain with proper application in medical field. [8] Explain the working principle of spectrophotometer with necessary diagram. [8] b) Q9) a) b) What are the different types of Recorders? Explain any one type in detail. [8] Explain electronic switching system for simultaneous display of several [8] signals on CRT. Q10)Write short notes on : a) X-Ray image intensifier. b) Colorimeter. c) Ultrasonic Doppler shift principle. [3764] - 1045 -2- [18]

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