Anti-sticking properties of PVD CrWNx, CrOx and ZrOx coatings on medical electrode application

Y. L. Hsu, C. H. Lee, S. M. Chiu, Y. C. Sung, K. Y. Yang, C. W. Chu

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

The side effect of electrosurgery includes tissue charring, smoke generation and the adhesion of tissue to electrodes. These effects prolong surgery and interfere with effective coagulation. In this paper, CrWN x, CrOx and ZrOx coating were prepared by an unbalanced magnetron sputtering. The microstructure of films was characterized using XRD, XPS, TEM and AFM. The hydrophobicity and surface energy of coatings were calculated by contact angle measurement and Wu harmonic mean approach. Anti-sticking in vitro test was performed by monopolar electrosurgery using pork liver tissue. The hardness of CrWNx, ZrOx and CrO x coatings were 44 GPa, 26.3 GPa and 20.7 GPa, respectively. The CrOx coating had the lowest surface energy 33.5 mN/m and the highest contact angle of water as high as 103°. The high surface O-H bonds density of CrOx coating and N-H bonds density of CrWNx coating could explain about their lower polar component of surface energy. All the three PVD coatings remarkably reduced the quantity of tissue adhesion on the electrode from about 2 times (ZrOx and CrWNx coatings) to 4.88 times (CrOx coating) than uncoated SUS304 electrode.

原文English
主出版物標題Diffusion in Solids and Liquids V
發行者Trans Tech Publications Ltd
頁面656-663
頁數8
297-301
ISBN(列印)3908451809, 9783908451808
DOIs
出版狀態Published - 2010

All Science Journal Classification (ASJC) codes

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

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