Limpabandhu Chayabhan, Hu Yihua, Ren Hongliang, Song Wenzhan, Tse Zion
Department of Electronic Engineering, University of York, York, UK.
Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong.
Proc Inst Mech Eng H. 2022 Feb 7;236(4):9544119221075400. doi: 10.1177/09544119221075400.
Catheters are used in various clinical applications, and the ability to direct the catheter to the desired location is critical for clinical outcomes. Steerable catheters assist clinicians to access targeted areas, notably the vascular bundles and major vessels, while causing no damage to the surrounding tissue. A novel catheter actuation technology for catheter steering is presented in this study. The technique is simple and relies on three magnetic couples interacting with one another to generate steering motions. A proof-of-concept catheter prototype demonstrated the capacity to remotely steer a catheter over 100 mm of distance and ±45° of angular positioning, showing the potential manoeuvrability for clinical applications. It is feasible to steer a catheter using this three-magnet pair approach with the great potential to be used for catheterisation procedures. The presented mechanism's kinematics and a near-form solution for catheter steering regardless of design factors will be studied in the future.
导管被应用于各种临床场景，将导管引导至所需位置的能力对临床治疗结果至关重要。可操纵导管有助于临床医生进入目标区域，尤其是血管束和主要血管，同时不会对周围组织造成损伤。本研究提出了一种用于导管操纵的新型导管驱动技术。该技术简单，依靠三对磁偶相互作用来产生操纵运动。一个概念验证导管原型展示了在超过100毫米的距离上远程操纵导管以及实现±45°角定位的能力，显示出其在临床应用中的潜在可操作性。使用这种三磁体对方法操纵导管是可行的，具有用于导管插入手术的巨大潜力。未来将研究所提出机制的运动学以及一种与设计因素无关的导管操纵近似形式解。
