A new application of superelastic SMAs in surgical instruments - hemostatic forceps with safe pressures
|Yun Luo 1, Masaru Higa , Shintaro Amae , Tomoyuki Yambe , Toshiyuki Takagi|
1. Tohoku University, Sendai, Japan
The authors have proposed a new application of superelastic SMAs in surgical instruments to enhance their safety. The constant stress property exhibited during the stress-induced transition of superelastic SMA is used to control the clamping pressure of hemostatic forceps within a safe range on biological tissues. Conventional hemostatic forcepses have rigid structures and might apply pressure higher than enough on biological tissues. In contrast, with the new SMA combined forceps it is possible to apply sufficient but not excessive pressure for homeostasis or arrest of bleeding, and is therefore able to minimize the damage on tissues under clamping.
Presentation: oral at E-MRS Fall Meeting 2005, Symposium C, by Yun Luo
See On-line Journal of E-MRS Fall Meeting 2005
Submitted: 2005-05-30 12:32 Revised: 2009-06-07 00:44