The Steerable Microcatheter: A New Device for Selective Catheterisation
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The steerable microcatheter (SwiftNINJA, Sumitomo Bakelite, Tokyo, Japan), which has a remote-controlled flexible tip manipulated using a dial in the handgrip, was recently developed and delivered to the market. This device enables the user to change the angle of the microcatheter tip manually, and potentially makes selective catheterisation easier. We evaluated its unique characteristics and utility in selective catheterisation and coil embolization. This article describes: (1) the advantages of this device in catheterisations involving acute angle branches, and (2) a new technique of compact coil packing with the use of intentional folding by the bendable tip of the catheter.
KeywordsSteerable microcatheter Catheterisation Acute angle branch Compact coil packing
The original images in Fig. 1 A–C were provided by SUMITOMO BAKELITE CO., LTD. We declare that we have no financial relationship to the company.
Source of Funding
Yusuke Sakuhara reports grants from JSPS KAKENHI Grant-in-Aid for Scientific Research (C), which is not related to the submitted work. Daisuke Abo reports personal fees from Siemens Medical Systems, which is not related to the submitted work. Kohsuke Kudo reports grants from JSPS KAKENHI Grant-in-Aid for Scientific Research (B), personal fees from GE Healthcare, Hitachi Medical Systems, Philips Medical Systems, Siemens Medical Systems, Toshiba Medical Systems, Canon Marketing Japan, Bayer Healthcare, and Daiichi-Sankyo Healthcare, which are not related to the submitted work.
Compliance with Ethical Standards
Conflicts of Interest
Takeshi Soyama, Daisuke Yoshida, and Ryo Morita declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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