Properties of Nitride-coated surgical scalpel blades

Q3 Physics and Astronomy

Plasma Medicine Pub Date : 2023-01-01 DOI:10.1615/plasmamed.2023050280

Katrinne Clea Pinca, Aian Ontoria, Magdaleno Jr Vasquez

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引用次数: 0

Abstract

Surgical tools are used in many medical treatments and procedures that expose them to a wide range of biological conditions that induce corrosion, abrasion, and wear. A protective layer is often needed to prolong its service life. Thus, it is essential to use appropriate coating techniques to improve the mechanical properties and chemical stability of the substrate. This work developed a custom-built radio frequency magnetron sputtering system for the deposition of titanium (Ti)-based coatings, which were selected because of their reported biocompatibility and superior mechanical qualities. Titanium nitride (TiN), and titanium aluminum nitride (TiAlN) thin films were deposited on AISI 304 stainless steel substrates and on INDOPLAS{\texttrademark} sterile scalpel blades. TiN was grown using a Ti target while TiAlN used a Ti-Al combinatorial target. Both films were deposited using a 90:10 admixture of argon (Ar) and nitrogen (N) gases. The substrate bias was varied into three different potentials: 0, -100, and -200 V. Substrate heating of 200C was applied and the deposition time was set at 2 hours. The optimal parameters and material for surgical tools are found to be TiN deposited at -100 V and TiAlN deposited at -200 V substrate bias as they show the highest resistance to abrasion and corrosion, respectively, and without reducing the sharpness of the blades. This work aims to offer the medical community a practical and inexpensive method of protecting surgical instruments while extending service life.

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氮涂层外科手术刀刀片的性能

外科手术工具用于许多医学治疗和程序，使其暴露于各种生物条件下，这些条件会引起腐蚀、磨损和磨损。通常需要一层保护层来延长其使用寿命。因此，必须采用适当的涂层技术来提高基材的机械性能和化学稳定性。这项工作开发了一种定制的射频磁控溅射系统，用于钛基涂层的沉积，钛基涂层因其生物相容性和优异的机械质量而被选中。将氮化钛(TiN)和氮化钛铝(TiAlN)薄膜沉积在AISI 304不锈钢衬底和INDOPLAS (\texttrademark})无菌手术刀片上。TiN用Ti靶生长，而TiAlN用Ti- al组合靶生长。这两种薄膜都是用氩(Ar)和氮(N)气体的90:10的混合物沉积的。衬底偏压变化为三个不同的电位:0、-100和-200 V。衬底加热200C，沉积时间设置为2小时。手术工具的最佳参数和材料是-100 V沉积的TiN和-200 V衬底偏压沉积的TiAlN，因为它们分别具有最高的耐磨性和耐腐蚀性，并且不会降低刀片的锋利性。这项工作旨在为医学界提供一种实用而廉价的方法来保护手术器械，同时延长其使用寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plasma Medicine Physics and Astronomy-Physics and Astronomy (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Technology has always played an important role in medicine and there are many journals today devoted to medical applications of ionizing radiation, lasers, ultrasound, magnetic resonance and others. Plasma technology is a relative newcomer to the field of medicine. Experimental work conducted at several major universities, research centers and companies around the world over the recent decade demonstrates that plasma can be used in variety of medical applications. It is already widely used surgeries and endoscopic procedures. It has been shown to control properties of cellular and tissue matrices, including biocompatibility of various substrates. Non-thermal plasma has been demonstrated to deactivate dangerous pathogens and to stop bleeding without damaging healthy tissue. It can be used to promote wound healing and to treat cancer. Understanding of various mechanisms by which plasma can interact with living systems, including effects of reactive oxygen species, reactive nitrogen species and charges, has begun to emerge recently. The aim of the Plasma Medicine journal will be to provide a forum where the above topics as well as topics closely related to them can be presented and discussed. Existing journals on plasma science and technology are aimed for audiences with primarily engineering and science background. The field of Plasma Medicine, on the other hand, is highly interdisciplinary. Some of prospective readers and contributors of the Plasma Medicine journal are expected to have background in medicine and biology. Others might be more familiar with plasma science. The goal of the proposed Plasma Medicine journal is to bridge the gap between audiences with such different backgrounds, without sacrificing the quality of the papers be their emphasis on medicine, biology or plasma science and technology.