Affiliation:
1. Institute of Rehabilitation Engineering and Technology, , University of Shanghai for Science and Technology, , China
2. , , China
Abstract
Clamping devices with constant force or pressure are desired in medical device, such as hemostatic forceps and the artificial sphincter, to prevent soft tissues from injures due to overloading. It is easily obtained by stretching an SMA wire. However, studies with SMA bending round bar have seldom been reported before. This paper studied constant force characteristic of C-shaped round bar with shape memory alloys. Optimization designs of the components were carried out with computational simulation. Numerical results show that the phenomenon of constant force strongly depends on contour curve shape and geometric dimensions of the C-shaped round bar of SMA component.
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Reference11 articles.
1. The application of superelastic SMAs in less invasive haemostatic forceps;Luo;Smart Materials & Structures,2007
2. Design of safe surgical forceps using superelastic SMAs;Luo;International Journal of Applied Electromagnetics and Mechanics,2007
3. History of surgical instruments: 8. Instruments and development of amputation technique exemplified by amputation sets from the middle of the 19th century;Sachs;Zentralbl Chir,1998
4. Challenges faced in the clinical application of artificial anal sphincters;Wang;Journal of Zhejiang University Science B,2015
5. Development of an implantable artificial anal sphincter by the use of the shape memory alloy;Amae;Asaio Journal,2001