Dept: Biomedical Technology                        College: Applied Medical Sciences

1.      Program Title: Mechanical Medical Equipments I

2.      Program code and number: BMT 232

3.      Faculty member responsible for the program: Dr. Mohamed Z. Bendjaballah

4.      Qualification required for faculty member: Ph.D. or M.Sc.

5.      No. of units/Credit hours: 3 hrs.

6.      level at which this course is offered: 5

7.      Pre-requisites: BMT 224

8.      Co-requisites: NA

9.      General Goal of program:

·         Understanding the basics of continuum mechanics.

·         Develop the ability to investigate simple stress and strain states in solid.

·         Understanding the basics of fluid mechanics.

·         Application of fluid mechanics principles to simple medical mechanical equipments.

10.  Short Description of the course: The Part-A of this is course introduces students to continuum mechanics principles. The student should be able to investigate and represent a stress state in a solid due to simple loading cases by using free body diagram principle and stress elements. Strain definition and measurement techniques (strain gage) are to be briefly covered. Stress-strain relationships and principal stress/strain components are investigated via Mohr's circle. Part-B focuses on fluid mechanics. Fluid statics principles are first covered stressing the pressure calculation and measurement techniques. Viscous and non-viscous basic fluid dynamic equations are developed and special attention is focused on blood flow in circulatory system as well as application of such principles in medical equipments.

11.  Topics to be covered

 Topics # weeks Total(hrs) Lecture Ex/pract Free body diagram, stress state in a point and stress element 2 4 4 NA Moh'r circle for stresses, Moh'r circle for special stress conditions 2 4 4 NA Elastic strains, strain gage principle, application to Rosette strain gage, Moh'r circle for strains, stress-strain relationships 3 6 6 NA Difference between solids, fluids and gas. Fluid Statics; incompressible fluids, Pascal’s principle, pressure calculation using constant density formula, buoyancy, application to manometry 2 4 4 NA Fluid dynamics; non-viscous fluids, continuity equation, energy equation, Bernouilli’s equation. Static consequences of Bernouilli’s equation: blood pressure measurement by cannulation. Dynamic consequences of Bernouilli’s equation: Flowmeters (Venturi tube, Prandtl tube and Pitot tube), Toricelli’s equation 2 4 4 NA Viscous fluids; Newtonian and non-Newtonian fluids, Newton’s law of viscosity, absolute and kinematic viscosity, viscosity in liquids and gases. Laminar vs turbulent flows and Reynolds number, Poiseuille’s law, power dissipation, flow of blood in the circulatory system, flow resistance, major and minor head losses in ducts and pipes 3 6 6 NA Blood pressure measuring devices: Sphygmomanometer, electronic Sphygmomanometer, DINAMAP or similar (Fully automatic/noninvasive), catheterization (vessel cutdown) 3 3 NA 3 Primary systems: cylinders, valves, liquefied gas systems, supply systems, piping systems, station outlets, compressors, oxygen concentrators 3 3 NA 3 Gas regulation, administration and controlling devices: reducing valves, flowmeters, regulators. 3 3 NA 3 Humidifiers (simple and heated humidifiers). Nebulizers (pneumatic, centrifugal and ultrasonic nebulizers 2 2 NA 2 Bedside measuring and monitoring devices: sthetoscopes, thermometers, oxygen analyzers, volume collecting devices (Spirometers), flow sensing devices, suction pumps 3 3 NA 3

12.  Teaching Strategies, program Outcomes, and methods of Assessment:

 Knowledge Cognitive Skills Interpersonal Skills and Responsibility Analytic and Comm. Teaching Strategies program Outcomes methods of Assessment

13.  Teaching Sources:

a)      Books or notes: Instructor notes and Handouts

b)      Extra references: Mechanics of Solids and Fluids, Ziegler, F., Springer Verlag, Berlin, 1995 (2nd ed.).

Equipment Therapy for Respiratory Care, White, G. C., Thomson Delmar Learning, 2005 (4th ed.).

c)      Electronic sources: NA

d)     Teaching aids: MDSOLIDS (Solid Mechanics Shareware)

 Date of approval of program specification Date of major program review