Articles about Optics and Photonics, Lasers, Fiber Bragg gratings and FBG sensors

Medical application of fiber optic sensors

on August 16, 2019

doctor-563428_640Advances in the medical sphere and developments in life quality have caused a longer life expectancy of the human population, thus, increasing needs for assistive fiber optic technology, especially, for novel medical devices and fiber sensors. Fiber optic sensors offer such advantages as the electromagnetic field immunity, high flexibility, high sensitivity for mechanical parameters, higher elastic limits, and impact resistance. 

The mentioned optical fiber advantages are ideally suited for the majority of healthcare tools and movement analysis because they meet all the instrumentation requirements. Additionally, opportunities presented by optical fiber sensors are considered to find further widespread fiber applications due to the aforementioned benefits.

It should be mentioned that fiber optic technology is intrinsically safe for such fields of applications as industrial, medical, and structural health monitoring. Optical fiber sensors allow monitoring such factors as angle, refractive index, temperature, humidity, acceleration, pressure, breathing rate, and oxygen saturation. Herewith, it is possible to insert fiber sensors in textiles for sensing applications, resulting in the creation of optical fiber textiles.

Despite the development of fiber optic sensors, the need for medical tools does not stop increasing, particularly because of the population aging. Moreover, fiber sensors are used for the development of a new generation of robotic devices for the medical area that requires a more reliable performance of the fiber sensing system.

At the same time, the features of fiber sensors have to be as flexible and compact as possible to meet the current requirements. Herewith, the requirements for intrusive fiber sensing systems are much higher because it must have an additional quality such as biocompatibility, that is why fiber optic technology remains in constant development.

Traditionally, fiber sensing systems employ electronic or electromechanical sensors that have numerous disadvantages such as sensitivity to misalignments, electromagnetic fields sensitivity, lower compactness, need for frequent calibration and sometimes hysteresis and drift on the sensor response. Compared to electronic sensors, fiber optic sensors have not got these weaknesses.

Medical application of fiber sensors includes their use study of bones decalcification and strain distribution, evaluation of intervertebral disks, dental splints, cardiac monitoring, and biosensors for pathologies detection. Also, several fiber optic sensors enable to carry out intramuscular, intracranial, and intra-articular pressure assessment in prosthesis sockets and strain distribution on the prosthesis as well as on the investigation of actuator dynamics in an orthosis, etc.

If you want to obtain a highly efficient sensing system, you should choose Optromix company. Optromix is a manufacturer of innovative fiber optic products for the global market. The company provides the most technologically advanced fiber optic solutions for monitoring worldwide. Optromix is a fast-growing vendor of fiber Bragg grating (FBG) product line such as fiber Bragg grating sensors, FBG interrogators and multiplexers, distributed acoustic sensing (DAS) systems, distributed temperature sensing (DTS) systems. The company provides a wide range of sensors: temperature sensors, strain sensors, displacement sensors, tiltmeters, accelerometers. If you are interested in fiber optic sensors and want to learn more, please contact us at

editorMedical application of fiber optic sensors

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