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Crimped braided sleeves for soft, actuating arm in robotic abdominal surgery

Elsayed, Y, Lekakou, Constantina, Ranzani, T, Cianchetti, M, Morino, M, Arezzo, A, Menciassi, A, Geng, T, Saaj, Chakravarthini and Chirurgia, M (2015) Crimped braided sleeves for soft, actuating arm in robotic abdominal surgery Minimally Invasive Therapy & Allied Technologies, 24 (4). pp. 204-210.

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Abstract

Background: This paper investigates different types of crimped, braided sleeve used for a soft arm for robotic abdominal surgery, with the sleeve required to contain balloon expansion in the pneumatically actuating arm while it follows the required bending, elongation and diameter reduction of the arm. Material and methods: Three types of crimped, braided sleeves from PET (BraidPET) or nylon (BraidGreyNylon and BraidNylon, with different monofilament diameters) were fabricated and tested including geometrical and microstructural characterisation of the crimp and braid, mechanical tests and medical scratching tests for organ damage of domestic pigs. Results: BraidPET caused some organ damage, sliding under normal force of 2-5 N; this was attributed to the high roughness of the braid pattern, the higher friction coefficient of polyethylene terephthalate (PET) compared to nylon, and the high frequency of the crimp peaks for this sleeve. No organ damage was observed for the BraidNylon, attributed to both the lower roughness of the braid pattern and the low friction coefficient of nylon. BraidNylon also required the lowest tensile force during its elongation to similar maximum strain as that of BraidPET, translating to low power requirements.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Elsayed, YUNSPECIFIEDUNSPECIFIED
Lekakou, ConstantinaC.Lekakou@surrey.ac.ukUNSPECIFIED
Ranzani, TUNSPECIFIEDUNSPECIFIED
Cianchetti, MUNSPECIFIEDUNSPECIFIED
Morino, MUNSPECIFIEDUNSPECIFIED
Arezzo, AUNSPECIFIEDUNSPECIFIED
Menciassi, AUNSPECIFIEDUNSPECIFIED
Geng, TUNSPECIFIEDUNSPECIFIED
Saaj, ChakravarthiniC.Saaj@surrey.ac.ukUNSPECIFIED
Chirurgia, MUNSPECIFIEDUNSPECIFIED
Date : 6 March 2015
Identification Number : 10.3109/13645706.2015.1012083
Copyright Disclaimer : © The Author(s)
Uncontrolled Keywords : Science & Technology, Life Sciences & Biomedicine, Surgery, Abdominal surgery, soft robots, braided sleeves, crimped sleeves, pneumatic actuation, GRAFT
Related URLs :
Additional Information : This is an Accepted Manuscript of an article published by Taylor & Francis in MINIMALLY INVASIVE THERAPY & ALLIED TECHNOLOGIES on 6 March 2015, available online: http://wwww.tandfonline.com/10.3109/13645706.2015.1012083
Depositing User : Symplectic Elements
Date Deposited : 27 Oct 2015 10:50
Last Modified : 08 Aug 2017 15:28
URI: http://epubs.surrey.ac.uk/id/eprint/809016

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