Development of an artificial myocardium using a covalent shape-memory alloy fiber and its cardiovascular diagnostic response

Y. Shiraishi, T. Yambe, K. Sekine, N. Masumoto, J. Nagatoshi, S. Itoh, Y. Saijo, Q. Wang, H. Liu, S. Nitta, S. Konno, D. Ogawa, P. Olegario, M. Yoshizawa, A. Tanaka, F. Sato, Y. Park, M. Uematsu, M. Higa, Y. HoriT. Fujimoto, K. Tabayashi, H. Sasada, M. Umezu, D. Homma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Citations (Scopus)

Abstract

The authors have been developing a newly-designed totally-implantable artificial myocardium using a covalent shape-memory alloy fibre (Biometal®, Toki Corporation), which is attached onto the ventricular wall and is also capable of supporting the natural ventricular contraction. This mechanical system consists of a contraction assistive device, which is made of Ti-Ni alloy. And the phenomenon of the martensitic transformation of the alloy was employed to achieve the physiologic motion of the device. The diameter of the alloy wire could be selected from 45 to 250μm. In this study, the basic characteristics of the fiber of 150μm was examined to design the sophisticated mechano-electric myocardium. The stress generated by the fiber was 400gf under the pulsatile driving condition (0.4W, 1Hz). Therefore it was indicated that the effective assistance might be achieved by using the Biometal shape-memory alloy fiber.

Original languageEnglish
Title of host publicationProceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages406-408
Number of pages3
ISBN (Print)0780387406, 9780780387409
DOIs
Publication statusPublished - 2005
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, China
Duration: 2005 Sep 12005 Sep 4

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume7 VOLS
ISSN (Print)0589-1019

Conference

Conference2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CountryChina
CityShanghai
Period05/9/105/9/4

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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    Shiraishi, Y., Yambe, T., Sekine, K., Masumoto, N., Nagatoshi, J., Itoh, S., Saijo, Y., Wang, Q., Liu, H., Nitta, S., Konno, S., Ogawa, D., Olegario, P., Yoshizawa, M., Tanaka, A., Sato, F., Park, Y., Uematsu, M., Higa, M., ... Homma, D. (2005). Development of an artificial myocardium using a covalent shape-memory alloy fiber and its cardiovascular diagnostic response. In Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 (pp. 406-408). [1616431] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 7 VOLS). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/iembs.2005.1616431