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Cairo university
Faculty of engineering
Systems and Bio-medical Engineering

Uses of optical fibres in
Biomedical
-

Prepared by :
Afafamerkhaznadar
Submitted to :
D.rMohammed Hesham
Optical Fiber
Core
jacket

Buffer Coating

Cladding

Silica

Core
Ge-Silica
Cladding

Total Internal
Reflection
Buffer Coating

single mode fiber
micron
nm

-

9
multi -mode
fibers
micron
Mhz

THZ

-
-

-
Fiber
scope

Endom

Endoscope
Skopein
Total Internal Reflection: TIR
Dielectric

C
n

n1
2

Snell's Law
c

C
SiO2
Silica
Glass

Optical
Quality

Polymethylmethacrylate
PMMA
PMMA
alignment

Molecular

Core
n2

n1
n n1
2
Step Index
Fiber

n1
Graded Index GI
Single Mode
Multi Mode MM

SM
SM
MM

Light Emitting Diodes LED

Image Guide

Coherent Bundle
Bundle
Resolving
Power

Crosstalk

Packing
Fraction
Laparoscope
Gastroscope
Arthroscope
Eyepieces

Robotic Arm
Suction Valve
Air /Water
Valve
Channel Opening

Insertion
Tube
Bending Section

Angular Mechanism
Distal
End
Up / Down Angulation Control
Knob
Up / Down Angulation
Lock
Right / Left Angulation
Knob
Right /Left Angulation
Lock
Auxiliary Water Inlet
Guide Connector Section
Light
Light
Guide
Air Pipe

http://en.wikipedia.org/wiki/Optical_fiber
http://electronics.howstuffworks.com/fiber-optic.htm
http://www.xainoo.com/?p=36
.

A Fiber Optic Chronology, http://www.sff.net/people/jefff.hecht/indexhtp

.

Fiberscopic Instrument Technology I. Kowahara and H. Ichikawa, 1987,
Gastrointestinal Endossopy 20-41

.

http://print.infoplease.com/ce6/sci/A0861371.html

.

http://www.olympus-europa.com

.

The History of Laparoscopy, http://www.laparoscopy.com

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Cairo university 1 (1)