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Article

Surface Reformation of Medical Devices with DLC Coating

1
Department of Electrical and Electronic Engineering, Tokyo Denki University, Tokyo 120-8551, Japan
2
Nanotec Co., Ltd., Chiba 277-0872, Japan
3
Department of Biomedical Engineering, King Saud University, Riyadh 11362, Saudi Arabia
4
Namiki-Mi Co., Ltd., Tokyo 132-0035, Japan
*
Author to whom correspondence should be addressed.
Materials 2021, 14(2), 376; https://doi.org/10.3390/ma14020376
Received: 16 December 2020 / Revised: 30 December 2020 / Accepted: 7 January 2021 / Published: 14 January 2021
(This article belongs to the Special Issue DLC (Diamond-Like Carbon) Film Formation and Application)
We evaluated the adhesion, friction characteristics, durability against bodily acids, sterilization, cleaning, and anti-reflection performance of diamond-like carbon (DLC) coatings formed as a surface treatment of intracorporeal medical devices. The major coefficients of friction during intubation in a living body in all environments were lower with DLC coatings than with black chrome plating. DLC demonstrated an adhesion of approximately 24 N, which is eight times stronger than that of black chrome plating. DLC-coated samples also showed significant stability without being damaged during acid immersion and high-pressure steam sterilization, as suggested by the results of durability tests. In addition, the coatings remained unpeeled in a usage environment, and there was no change in the anti-reflection performance of the DLC coatings. In summary, DLC coatings are useful for improving intracorporeal device surfaces and extending the lives of medical devices. View Full-Text
Keywords: intracorporeal medical device; DLC coating; ionized deposition system; surface treatment; low friction; durability; bodily acid; sterilization; anti-reflection; adhesion intracorporeal medical device; DLC coating; ionized deposition system; surface treatment; low friction; durability; bodily acid; sterilization; anti-reflection; adhesion
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MDPI and ACS Style

Kaneko, M.; Hiratsuka, M.; Alanazi, A.; Nakamori, H.; Namiki, K.; Hirakuri, K. Surface Reformation of Medical Devices with DLC Coating. Materials 2021, 14, 376. https://doi.org/10.3390/ma14020376

AMA Style

Kaneko M, Hiratsuka M, Alanazi A, Nakamori H, Namiki K, Hirakuri K. Surface Reformation of Medical Devices with DLC Coating. Materials. 2021; 14(2):376. https://doi.org/10.3390/ma14020376

Chicago/Turabian Style

Kaneko, Mao, Masanori Hiratsuka, Ali Alanazi, Hideki Nakamori, Kazushige Namiki, and Kenji Hirakuri. 2021. "Surface Reformation of Medical Devices with DLC Coating" Materials 14, no. 2: 376. https://doi.org/10.3390/ma14020376

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