3.Medical CAI using Remote Student Terminal
Tsuneo ARAKI ; Yasushi TATSUZAWA ; Iwao FUJIMASA
Medical Education 1976;7(4):246-254
4.Use of a stent of shape memory alloy in angioplasty.
Hiroshi MATSUMOTO ; Tetsuroh TAKAYAMA ; Hirofumi IDE ; Fujio MIYAWAKI ; Yoshiaki TANAKA ; Iwao FUJIMASA ; Hirofumi SAITOH
Japanese Journal of Cardiovascular Surgery 1989;19(2):129-133
The surface-coated vascular stent of shape memory alloy was made for use of occlusion of pseudo-lumen of the dissecting aneurysm of the aorta, as the usage of shape memory alloy in angioplasty, and the metal flexible delivery catheter was also made for the introduction of the stent. In the present study, antithrombogenicity of the vascular stent was much improved by surface-coating with EPTFE and segmented polyurethane. The long-term usage of the stent was confirmed by radiological, macroscopic, and electron microscopic examinations. Moreover, the metal flexible delivery catheter was demonstrated to be of much benefit for the introduction of the surface-coated vascular stent of shape memory alloy.