Open Access
Article Number 07011
Number of page(s) 4
Section Applied Research and Applications: Applications
Published online 01 September 2009
ESOMAT 2009, 07011 (2009)
DOI: 10.1051/esomat/200907011

Two-way shape memory-clips for colonic anastomosis

H. Morawiec1, Z. Lekston1, P. Lampe2, K. Kuśnierz2 and D. Zhavoronkov2

1  Institute of Materials Science, University of Silesia, 40-007 Katowice, Bankowa 12, Poland
2  Department of Gastrointestinal Surgery, Medical University of Silesia, 40-752 Katowice, Medyków 14, Poland

Published online: 1 September 2009

The compression anastomosis clip (CAC) is an elliptic shape double-ring device produced from nickeltitanium shape memory alloy. Until now the CAC works basing on the one-way shape memory effect. The aim of presenting studies was finding out the technology of two-way shape memory (TWSME) clips formation which should fulfil the requirements for clinical application. The clips were formed by wires of an alloy with 51.02 at. % Ni – balance Ti. The best value of the TWME and uniform compression force of the clips was achieved by combining deformation, constrained aging and thermomechanical cycling.

© Owned by the authors, published by EDP Sciences 2009