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Article type: Research Article
Authors: Yokobori, Jr., A. Toshimitsu | Ohkuma, Tsuneo | Yoshinari, Hiromi | Ichiki, Masataka | Ohuchi, Hirosi | Yokobori, Takeo
Affiliations: Department of Mechatronics and Precision Engineering, Tohoku University, Sendai, Japan, 980 | Department of Second Surgery School of Medicine, Tohoku University, Sendai, Japan, 980 | School of Science and Engineering, Teikyo University, Utsunomiya, Tochigi, Japan | Sendai JR Hospital Itsutsubashi Aobaku, Sendai, Japan
Abstract: A mechanical test on small caliber blood vessel is difficult because the strength is very low and the dimension is very small. In the present paper a multifunctional axial test apparatus design is proposed. This has the characteristics such that the load cell and the environmental container for the specimen are built up in terms of cassette, respectively, and thus both are easy to equip and take off, that is, easy to replace. Also, the test methodology by internal pressure for small caliber blood vessels has been proposed. By using both of these methodologies, the characteristics of the mechanical behavior of small caliber blood vessels, such as compliance, stress relaxation, and viscoelastic property have been clarified. An attempt has been made on the application of this method to a clinical case.
Keywords: multifunctional axial test, test methodology by internal pressure, small caliber blood vessel, compliance, stress relaxation, viscoelastic property
DOI: 10.3233/BME-1993-3401
Journal: Bio-Medical Materials and Engineering, vol. 3, no. 4, pp. 175-183, 1993
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