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All experimental data reported in this manuscript were acquired after A.Y.\u2019s cross-appointment had ended, and the data analysis was also conducted thereafter. A.Y. contributed to the design of the catheter prototypes, including the wiring aid (WA), and W.Y., an employee of Zeon Medical Inc., fabricated the prototypes used in this study. Zeon Medical Inc. did not provide direct research funding for this study but supported prototype fabrication, including the associated fabrication costs. The study was designed by A.Y.  Japanese patent applications related to the non-straight wire-routing technology described in this manuscript (Japanese Patent Application Nos. 2022-560803 and 2025-283363) were filed solely by Shiga University of Medical Science and received decisions to grant on July 22 and July 29, 2026, respectively. Patent numbers have not yet been assigned. Corresponding U.S. and European patent applications for Japanese Patent Application No. 2022-560803 are also pending. A.Y. is a named inventor on all of these applications; none of the other authors is a named inventor. Zeon Medical Inc. is neither an applicant nor a rights holder for any of these applications and has no license, option, or other rights relating to them. A.Y. and W.Y. declare no other relevant consultancy, financial, or competing interests beyond those disclosed above. The other authors declare no competing interests.","order":2,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}]}}