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Development of a suturing device for anastomosis for small caliber arteries

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Abstract

The use of minimally invasive and robotic operations has been increasing for coronary artery bypass surgery; however, no suturing devices have been universally adopted for use in these procedures. We developed a new suturing device that enables omission of manual ligation after a running suture. Twenty-two rabbits were used in this study. In 22 rabbits, the right carotid artery was bypassed using an autologous jugular vein graft. Half of the animals were operated on using the new device and the other half using conventional suturing methods. Postoperative evaluations were performed at 1, 3, and 6 months. Suturing time was 15.6 ± 2.4 min in the device group and 16.6 ± 4.4 min in the control group (p = 0.34). Graft patency and blood flow measurements were not significantly different between the two groups. Histopathological examination of the anastomotic site showed common inflammatory responses in both groups. No particular histopathological change was seen related to the device. In conclusion, the safety of the new suturing device was confirmed, and its efficacy was equal to that of the conventional suturing technique.

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Conflict of interest

This study was supported by the scientific research fund of the Ministry of Education, Culture, Sports, Science and Technology.

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Authors and Affiliations

  1. Department of Cardiac Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan

    Yoshifumi Itoda, Nirmal Panthee, Tsuruhito Tanaka & Minoru Ono

  2. School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan

    Takehiro Ando & Ichiro Sakuma

Authors
  1. Yoshifumi Itoda
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  2. Nirmal Panthee
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  3. Tsuruhito Tanaka
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  4. Takehiro Ando
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  5. Ichiro Sakuma
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  6. Minoru Ono
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Corresponding authors

Correspondence to Yoshifumi Itoda or Minoru Ono.

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Itoda, Y., Panthee, N., Tanaka, T. et al. Development of a suturing device for anastomosis for small caliber arteries. J Artif Organs 17, 88–94 (2014). https://doi.org/10.1007/s10047-013-0749-6

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  • DOI: https://doi.org/10.1007/s10047-013-0749-6

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