Flexible Magnetoresistive Sensors for Guiding Cardiac Catheters

Hawsawi M, Amara S, Mashraei Y, Almansouri A, Mohammad H, Sevilla GT, Jakob G, Jaiswal S, Kläui M, Haneef A, Saoudi A, Hussain M, Kosel J (2018)

Publication Type: Conference contribution

Publication year: 2018

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: MeMeA 2018 - 2018 IEEE International Symposium on Medical Measurements and Applications, Proceedings

Event location: Rome, ITA

ISBN: 9781538633915

DOI: 10.1109/MeMeA.2018.8438796

Abstract

Cardiac catheterization is a procedure, in which a long thin tube that is called a 'catheter' is inserted into the heart for diagnosis or treatment. Due to the excessive use of x-ray doses and contrast agents for orientation detection during the surgery, there is a need to find a better alternative. This paper presents magnetic tunnel junction sensors on flexible Si attached to the catheter tip for orientation detection during minimally invasive surgeries. Due to the small size of catheters, extreme minimization in terms of size, weight, thickness and power consumption is needed for any device implemented on it. The fabricated flexible magnetic tunnel junctions fulfill those requirements with size, thickness, weight and power consumption of 150 μm2, 12 μm, 8 μg and 0.15 μW, respectively, while still providing a high sensitivity of 4.93 %/Oe. The sensors can be bent with up to 500 μm in diameter, which is more than needed for even the smallest catheters of size 1 mm (3 Fr) in diameter. This result is a stepping-stone towards the development of a versatile and low-cost smart catheter system that can help surgeons navigate inside the heart while minimizing the side effects.

Involved external institutions

King Abdullah University of Science and Technology (KAUST) / جامعة الملك عبد الله للعلوم و التقنية SA Saudi Arabia (SA) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE) King Saud bin Abdulaziz University for Health Sciences (KSAU-HS) / جامعة الملك سعود بن عبد العزيز للعلوم الصحية SA Saudi Arabia (SA)

How to cite

APA:

Hawsawi, M., Amara, S., Mashraei, Y., Almansouri, A., Mohammad, H., Sevilla, G.T.,... Kosel, J. (2018). Flexible Magnetoresistive Sensors for Guiding Cardiac Catheters. In MeMeA 2018 - 2018 IEEE International Symposium on Medical Measurements and Applications, Proceedings. Rome, ITA: Institute of Electrical and Electronics Engineers Inc..

MLA:

Hawsawi, M., et al. "Flexible Magnetoresistive Sensors for Guiding Cardiac Catheters." Proceedings of the 13th IEEE International Symposium on Medical Measurements and Applications, MeMeA 2018, Rome, ITA Institute of Electrical and Electronics Engineers Inc., 2018.

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