Research on thermal effect of electrosurgery with anti-adhesion composite films

       The 6th ENGII Conference——The purpose of this study is to investigate the thermal effect on the liver resulting from electro-surgical devices with copper-doped diamond-like carbon (a-C:H/Cu) surface treatment using computer aided analysis and animal models. It is necessary to reduce the thermal damage in the adjacent tissues for clinical electrosurgical surgeries. a-C:H/Cu films were characterized by scanning electron microscope (SEM) and transmission electron microscopy (TEM) to analyze the surface morphologies in this study. Bionic liver models were reconstructed using magnetic resonance image (MRI), and results indicated that the temperature decreased significantly when using electrosurgical device with nanostructured a-C:H/Cu films, temperature also decreased with increasing film thicknesses. Lesions were made on the liver of adult rats, and thermography revealed the surgical temperature in liver tissue from the a-C:H/Cu group was significantly lower than the un-treated group. Moreover, a-C:H/Cu electrodes caused a relatively smaller area of injury area and lateral thermal injury, a smaller area of fibrotic tissue, and a faster process of wound healing than the untreated group. Results indicated that the coated film reduced excessive temperature and transformed the temperature uniformly in the liver tissue.