Bio-inspired Anti-adhesion Surfaces of Electrosurgical Scalpel

doi:10.3901/JME.2018.17.021

Abstract

Abstract: Minimally invasive surgery with the advantages of less trauma, slight pain and quicker recovery has gradually become the mainstream of surgical operation. Surgical tissue cutting and hemostasis are usually accomplished via energy-based surgical instruments such as monopole electrode and electric coagulation. However due to high working temperature, tissue adhesion on the surface of the electrode can char the soft tissue and result in failure of hemostasis. Under the inspiration of nature surface, the ultra-slippery feature of Nepenthes peristome and its slippery mechanism are investigated. After revealing the ultra-slippery anti-adhesion mechanism, a new strategy of liquid thin film induced anti-adhesion are put forward based on the research of biomimetic anti-adhesion surface structure and high temperature resistance method. Finally, the energy-based cutting experiments reveal that the anti-adhesion ability of as-prepared biomimetic surface is significantly improved, for example tissue adhesion force decline by 80% and 87% for tissue adhesion mass reducing, 82.6% for wound damage area reducing, 71% for thermal damage area reducing. The bio-inspired adhesion surface satisfied the requirements of energy conservation minimally invasive surgical equipment anti sticking technology.

Key words: anti-adhesion, bio-inspired surface, electrosurgical scalpel, minimally invasive surgery

CLC Number:

TH777

LIU Guang, ZHANG Pengfei, CHEN Huawei, HAN Zhiwu, ZHANG Deyuan. Bio-inspired Anti-adhesion Surfaces of Electrosurgical Scalpel[J]. Journal of Mechanical Engineering, 2018, 54(17): 21-27.

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