Fiber Optic Distributed Sensing Network for Shape Sensing-Assisted Epidural Needle Guidance
| Autor: | Wilfried Blanc, Carlo Molardi, Aizhan Issatayeva, Nargiz Adilzhanova, Daniele Tosi, Aida Amantayeva |
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| Rok vydání: | 2021 |
| Předmět: |
Anesthesia
Epidural Epidural Space Optical fiber smart surgical instruments Channel (digital image) Computer science Clinical Biochemistry optical fiber sensor Article Imaging phantom Silhouette law.invention law medicine Fiber Optic Technology Humans fiber-optic shape sensors epidural anesthesia distributed sensors Process (computing) General Medicine Epidural space medicine.anatomical_structure Needles Fiber optic sensor epidural needle Guidance system TP248.13-248.65 Biotechnology Biomedical engineering |
| Zdroj: | Biosensors Volume 11 Issue 11 Biosensors, Vol 11, Iss 446, p 446 (2021) |
| ISSN: | 2079-6374 |
| DOI: | 10.3390/bios11110446 |
| Popis: | Epidural anesthesia is a pain management process that requires the insertion of a miniature needle through the epidural space located within lumbar vertebrae. The use of a guidance system for manual insertion can reduce failure rates and provide increased efficiency in the process. In this work, we present and experimentally assess a guidance system based on a network of fiber optic distributed sensors. The fibers are mounted externally to the needle, without blocking its inner channel, and through a strain-to-shape detection method reconstruct the silhouette of the epidural device in real time (1 s). We experimentally assessed the shape sensing methods over 25 experiments performed in a phantom, and we observed that the sensing system correctly identified bending patterns typical in epidural insertions, characterized by the different stiffness of the tissues. By studying metrics related to the curvatures and their temporal changes, we provide identifiers that can potentially serve for the (in)correct identification of the epidural space, and support the operator through the insertion process by recognizing the bending patterns. |
| Databáze: | OpenAIRE |
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