Presentation Information
[8p-C309-3]Development of a multifunctional fiber-based catheter for endovascular procedures
〇(M1)Sambardhan Dabadi2,1, Reiko Toukairin3,1, Etienne Le Bourdonnec2,1, Yoshiteru Shimoda4,1, Tomohisa Ishida4,1, Kuniyasu Niizuma4,1, Yuanyuan Guo2,3,1 (1.Tohoku University, 2.Grad Sch Biomed Eng, 3.FRIS, 4.Dept of Neurosurgery)
Keywords:
Pressure sensor,Micro-catheter,Endovascular
Endovascular procedures require precise navigation, yet current technology lacks real-time hemodynamic information. To enhance patient safety, this study develops a highly flexible, multifunctional fiber catheter with integrated sensors for localized intraoperative monitoring.
Utilizing a thermal drawing technique, a fiber catheter with an operating lumen and functional channels was fabricated. Pressure sensors were integrated at the tip of the fiber for real time detection of intra-arterial pressure.
The sensor exhibited linear pressure sensitivity, yielding a ~2X increase in peak-to-peak voltage when pump power rose from 20% to 40%. It demonstrated high temporal resolution by accurately discerning distinct pulse signals at 60–100 BPM.
The developed catheter enables robust, real-time heart rate and intra-arterial pressure monitoring. Future work will optimize signal conditioning and develop a clamp-type connector for seamless surgical mobility.
Utilizing a thermal drawing technique, a fiber catheter with an operating lumen and functional channels was fabricated. Pressure sensors were integrated at the tip of the fiber for real time detection of intra-arterial pressure.
The sensor exhibited linear pressure sensitivity, yielding a ~2X increase in peak-to-peak voltage when pump power rose from 20% to 40%. It demonstrated high temporal resolution by accurately discerning distinct pulse signals at 60–100 BPM.
The developed catheter enables robust, real-time heart rate and intra-arterial pressure monitoring. Future work will optimize signal conditioning and develop a clamp-type connector for seamless surgical mobility.