Efficient Thermobonding Process Forming a Polyurethane Based Diagnostic Catheter with Liquid Crystal Polymer

Kuert, Gerhard Frédéric; Jacomet, Marcel; Niederhauser, Thomas (27 July 2019). Efficient Thermobonding Process Forming a Polyurethane Based Diagnostic Catheter with Liquid Crystal Polymer In: Engineering in Medicine and Biology, EBMC'19 (pp. 6163-6166). IEEE 10.1109/EMBC.2019.8857913

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Diagnostic and therapeutic catheters play an inevitable role in minimal invasive medical procedures. Unfortunately, standard catheters show a limited transducer density and high production efforts. We propose a novel catheter design and manufacturing method using a liquid crystal polymer (LCP)-based flexible printed circuit board (FPCB) and a thermoplastic polyurethane (TPU) elastomer tube. Both components are bond together with a low cost, additive free lamination process at a re-flow temperature of 250° C. The lamination process is improved with a laser welding seam and LCPintegrated microholes preventing delamination. Standardized Mechanical tests were conducted to characterize the bonding. A Peel strength of up to 8.5 N in the radial direction and a non plastic elongation in the axial direction of 10% provide evidence that the thermobonding process is suitable for the production of flexible and mechanically durable medical catheters featuring high electrode densities.

Item Type:	Conference or Workshop Item (Paper)
Division/Institute:	School of Engineering and Computer Science > Institute for Human Centered Engineering (HUCE) BFH Centres and strategic thematic fields > BFH centre for Health technologies
Name:	Kuert, Gerhard Frédéric; Jacomet, Marcel and Niederhauser, Thomas0000-0003-2633-0844
Subjects:	R Medicine > R Medicine (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher:	IEEE
Language:	English
Submitter:	Marcel Jacomet
Date Deposited:	09 Oct 2019 09:14
Last Modified:	08 Oct 2021 02:30
Publisher DOI:	10.1109/EMBC.2019.8857913
Related URLs:	Organisation
Additional Information:	© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
ARBOR DOI:	10.24451/arbor.8542
URI:	https://arbor.bfh.ch/id/eprint/8542