A novel ferromagnetic thermo-stent for plaque stabilization that self-regulates the temperature.
The purpose of this study is to investigate the vascular wall with a thermally self-regulating, cylindrical stent made of a low Curie temperature ferromagnetic alloy. Physiologic saline was circulated in the silicone model vessel implanted with the stent. The stent-temperature remained nearly constant for variable saline flows, saline temperatures, and magnetic flux densities. Stent implants of this type in human blood vessels could potentially enable thermotherapy and temperature determination without catheterization.
Matsui
Takemi
T
Division of Biomedical Engineering, Research Institute, National Defense Medical College, Tokorozawa, Japan. matsuit@res.ndmc.ac.jp
Matsumura
Kouji
K
Hagisawa
Kousuke
K
Ishihara
Masayuki
M
Ishizuka
Toshiaki
T
Suzuki
Minoru
M
Kurita
Akira
A
Kikuchi
Makoto
M
D000818:Animals; D001161:Arteriosclerosis / Q000628:therapy; D001672:Biocompatible Materials; D001807:Blood Vessel Prosthesis; D001833:Body Temperature Regulation / Q000502:physiology; D004867:Equipment Design; D005290:Ferric Compounds; D006358:Hot Temperature / Q000627:therapeutic use*; D006801:Humans; D008099:Liver / Q000166:cytology / Q000502:physiology / Q000601:surgery; D008280:Magnetics / Q000295:instrumentation*; D008955:Models, Cardiovascular; D019736:Prostheses and Implants; D051381:Rats; D012965:Sodium Chloride; D015607:Stents; D013696:Temperature
D001672:Biocompatible Materials; D005290:Ferric Compounds; D012965:Sodium Chloride