Authors
Uditha Roshan1, *, Ranjith Amarasinghe1, Nuwan Dayananda2
1
Department of Mechanical Engineering, University of Moratuwa, Katubedda
10400, Sri Lanka
2
Department of Electronic and Telecommunication Engineering, University
of Moratuwa, Katubedda 10400, Sri Lanka
*
Corresponding author. Email: [email protected]
Corresponding Author
Uditha Roshan
Received 15 July 2018, Accepted 11 November 2018, Available Online 1 December
2018.
DOI
https://doi.org/10.2991/jrnal.2018.5.3.11
Keywords
Shape memory alloy; minimally invasive surgeries; gripper; differential
scanning calorimetry
Abstract
A shape memory alloy (SMA)-based spring actuated gripper (SAG) was designed
and developed for facilitating minimally invasive surgeries (MIS). Specifically
the research consists of design and development of a SMA spring which acts
as the actuator for the gripper. A novel mechanism was also developed to
transfer the actuator force to the gripper jaws. Further, the actuator
force was characterized by a testing apparatus which uses a full-bridge
load cell as the force sensing element. The activation temperature of the
SMA actuator was obtained by performing differential scanning calorimetry
(DSC) tests on the samples.
Copyright
© 2018 The Authors. Published by ALife Robotics Corp. Ltd.
Open Access
This is an open access article under the CC BY-NC license (http://creativecommons.org/licences/by-nc/4.0/).