Medical appplication of Fiber optics by ekansh agarwal NMIMS

1. MEDICAL APPLICATIONS
OF FIBER OPTICS CABLES

2. 2
Table of Content
▸ Introduction to Fiber Optics
▸ Advantages of Fiber Optics
▸ Applications of Fiber Optics in Medical Field
▸ Applications of Fiber Optics Sensors
▸ Endoscopy
▸ Dentistry
▸ Conclusion
▸ References

3. Introduction to Fiber Optics
▸ Fiber optics which is a part of a larger or more general field called photonics, is
concerned with the use of glass fibers carrying photons to complement electron
carrying wires.
▸ This technology is now well established in long distance fiber optic
telecommunication and rapidly growing in other areas like military application,
biomedical application ,etc
▸ Rise in demand for bandwidth and reliability and increasing demand for fiber
optic cables among airframers & are the major factors
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4. Advantages of Fiber Optics
▸ Optical fiber cables have higher bandwidth than copper conductor cables. ​
▸ Data security is an inherent property of optical fiber cables. ​
▸ The electromagnetic immunity of optical fiber cables is excellent. There is no
signal transmission interruption, crosstalk, or performance degradation in
fiber optic communications. The high transmission capacity of optical fiber
cables is equivalent to that of a hundred conductor transmission cables
together. ​
▸ Optical fiber cables are more durable, cheaper, and of lighter weight than
traditional copper cables.
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5. Applications of Fiber Optics in Medical Field
Fiber optic cables in medical devices have the potential to be used in
many more applications, such as:​
● Remote spectrophotometry​
● Endoscopic imaging​
● Pressure and position sensing​
● Scintillation counting​
● Intravascular pressure transducers​
● In vivo oximeters​
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6. Advantages of Fiber Optic Sensors
The advantages of using fiber optics over electronic sensors in medical
applications are many. Here are a few of the benefits:
▸ Its small size
▸ immunity to EM
▸ greater sensitivity
▸ geometrical versatility
▸ general robust characteristics
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7. Figure 1. Samba Sensors’ ultraminiature fiber optic pressure sensor is used to sense parameters including
systolic blood pressure, intravascular blood pressure and intracranial pressure during trauma. Courtesy of
Samba Sensors AB.
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8. Figure 2. An FOP-MIV pressure sensor (here inserted in a 24-gauge hypodermic needle) is mass-produced
by automated assembly lines. This 550-µm-outside-diameter optical sensor could be integrated into
specialized catheters such as intra-aortic balloon (IAB) catheters, where it could provide EMI-free precise in
situ blood pressure measurements used to trigger optimal balloon inflation/deflation during IAB pumping
therapy. Courtesy of FISO Technologies Inc.
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9. Figure 3. Gemini preform and drawn fiber. Courtesy
of Acreo AB.
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10. Endoscopy
▸ THE NAME ENDOSCOPE IS DERIVED FROM
TWO GREEK WORDS WHICH ARE ENDOM
(WITHIN) AND SKOPEIN (VIEW).
▸ A BUNDLE OF PRECISELY ALIGNED FLEXIBLE
OPTICAL FIBERS IS USED SOME FOR USE AS
AN IMAGE GUIDE AND THE OTHER AS A
LIGHT GUIDE
▸ ADDITIONALLY, ANCILLARY CHANNELS MAY
BE PRESENT FOR THE PASSAGE OF AIR,
WATER, AS WELL AS REMOTE CONTROL
IMPLEMENTS SUCH AS BIOPSY FORCEPS OR
CYTOLOGY BRUSHES.
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11. Dentistry
MATCHING OF THE COLOR OF TEETH CAN BE
DOINE USING A SLENDER, FLEXIBLE
POLYMETHYLMETHACRYLATE PLASTIC FIBER
OPTIC BUNDLE TO ILLUMINATE A PORTION OF THE
TOOTH USING WHITE LIGHT AND GUIDING THE
REFLECTED LIGHT BACK TO A SPECTROMETER
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12. Use in Surgery
▸ Biocompatibility
▸ Traceability
▸ Sterilization
▸ Precision
▸ Controlling temperature
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13. Fiber Optic Probe Colorimeter
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14. Conclusion
▸ We have seen the application of fiber optics in medical
purposes.
▸ Now a days, research and development of discrete sources and
detectors has improved the performance and lowered the cost
of optical transmission system.
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15. References
▸ Fiber optics for 3 and 10 micron medical lasers
▸ MEMS and fiber optics sensor-based wearable interface for
medical applications
▸ Optical fiber grating based technologies and their
applications: From nuclear fusion to medical
▸ Optical fiber delivery of intense ultrashort laser for
endoscopic medical applications
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