A Stent-Based Power and Data Link for Sensing Intravascular Biological Indicators

Ammar Aldaoud; JM Redoute; K Ganesan; G. S. Rind; SE John; SM Ronayne; NL Opie; DJ Garrett; S Prawer

Journal article

A Stent-Based Power and Data Link for Sensing Intravascular Biological Indicators

Ammar Aldaoud, JM Redoute, K Ganesan, undefined G. S. Rind, SE John, SM Ronayne, NL Opie, DJ Garrett, S Prawer

IEEE Sensors Letters | IEEE Press | Published : 2018

DOI: 10.1109/LSENS.2018.2876350

Abstract

Stents are a common biomedical device used to treat atherosclerosis, but they are typically passive and employ no electronics. This article details the design, fabrication, and testing of a miniaturized circuit board capable of telemetry via a stent antenna. The circuit is less than 1.1 mm in diameter making it sufficiently miniaturized to be delivered via a catheter. Experiments in porcine tissue achieved a data rate of 277 kb/s with a 280-MHz carrier. The implant was tested at depths of 3, 6, and 9 mm, requiring a transmitter power of 44, 48, and 63 mW, respectively, to operate, surpassing specifications reported in previous electronic stent-based works. These measurements confirm that ste..

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University of Melbourne Researchers

Kumaravelu Ganesan Author

Sam John Author

Stephen Ronayne Author

Nicholas Opie Author

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Grants

Awarded by Australian Research Council

Funding Acknowledgements

This work was supported in part by the IEEE, in part by an Australian Research Council Linkage Project (LP150100038), and in part by the National Health and Medical Research Council (NHMRC) Project under Grant APP1062352. The work of N. L. Opie was supported by a Westpac Bicentennial Research Fellowship. The work of D. J. Garrett was supported by the NHMRC under Grant GNT110171. The authors would like to thank S. Williams for performing wire bonding to test extracted dice. Author contributions: A. Aldaoud theorized, designed, fabricated, and tested the implant and wrote the manuscript. J.-M. Redoute advised on the implant circuit design and G. S. Rind provided the CAD model for the stents. K. Ganesan and D. J. Garrett advised on the diamond printed circuit board fabrication. All the authors were responsible for reviewing the manuscript prior to submission. S. Prawer is a shareholder and Chief Technology Officer of IBionics, a company developing a diamond-based retinal implant. G. S. Rind, S. E. John, S. M. Ronayne, and N. L. Opie are shareholders of Synchron.