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派瑞林用于医疗器械的讨论

2018年12月09日 点击:

随着医疗器械变得更小和更紧凑,Parylene涂层的使用由于其分子水平的沉积而具有增加的价值。薄膜,无针孔Parylene保形涂层为医疗行业中的救生设备和仪器提供了最佳保护。惰性,真空沉积的Parylene具有生物相容性和生物稳定性,并具有出色的干膜润滑性,热稳定性,湿度,化学和隔离屏障保护。此外,Parylene已获得FDA批准(具有aUSP XXII,VI级生物相容性等级),可安全地在体内使用。

PCT Parylene获得USP VI级认证

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聚对二甲苯是一种薄的真空沉积聚合物。它与传统涂层的不同之处在于它作为薄膜在室温下沉积在物体上,并且不使用溶剂,催化剂,增塑剂或其他特征增强添加剂。它基于称为二对二甲苯的高纯度原料,二异丙二烯是白色结晶粉末。真空和热处理将粉末转化为聚合物膜,其在室温下在基板上形成。

Parylene医用涂层服务
Parylene涂层可保护各种医疗设备和组件,包括支架,导管,心脏起搏器,电外科工具,硬膜外探针,心轴,针等。外科手术中使用的医疗器械选择性地涂覆聚对二甲苯以改善其润滑性并提供选择性电绝缘。该涂层还保护和润滑皮下注射针,并可在植入设备和假体硬件上形成生物相容性屏障。Parylene的独特性能包括与基材形貌的精确一致性,非常薄的层中的无针孔覆盖,以及渗透和涂覆复杂表面的能力。Parylene膜可抵抗有机溶剂,无机试剂和酸的化学侵蚀; 它可以很好地粘附在许多表面上,并提供优异的介电强度。聚对二甲苯具有光滑的表面,

Parylene是大多数类型基材的理想选择,包括玻璃,陶瓷,塑料,金属,弹性体和硅橡胶.Parylene的光学透明涂层能够适应任何形状,如锋利的边缘和尖端。Parylene不会促进生物制剂的生长。其表面不适合细菌和其他病原体的增殖。

Parylene医用涂料的优点:

·         生物相容性

·         生物稳定

·         化学惰性

·         干膜润滑性

·         FDA批准

·         无固化周期

·         无毒

·         抗真菌和细菌增殖

·         无溶剂

·         USP VI级

Parylene Medical应用实例:

·         导管

·         医用密封件

·         医用弹性体

·         医用线圈

·         助听器

·         植入物/起搏器

·         支架

·         心轴

·         电外科器械




As medical devices become smaller and more compact, theuse of Parylene coatings finds increasing value due to its molecular leveldeposition. Thin film, pinhole-free Parylene conformal coatings provide theultimate protection for life-saving devices and instruments in the medicalindustry. Inert, vacuum deposited Parylene is biocompatible and biostable andoffers excellent dry-film lubricity, thermal stability, moisture, chemical anddielectric barrier protection. Additionally, Parylene is FDA-approved (with aUSP XXII, Class VI biocompatibility rating) and is safe for use within thebody.

PCT Parylene is USP Class VI Approved

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Parylene is a thin, vacuum-deposited polymer. It differsfrom conventional coatings in that it is deposited on objects at roomtemperature as a film, and does not use solvents, catalysts, plasticizers, orother feature-enhancing additives. It is based on a high-purity raw materialcalled di-paraxylylene, which is a white, crystalline powder. A vacuum andthermal process converts the powder to a polymer film, which is formed onsubstrates at room temperature.

Parylene Medical Coating Services
Parylene coatings protect a wide array of medical devices and componentsincluding stents, catheters, pacemakers, electrosurgical tools, epiduralprobes, mandrels, needles, and more. Medical devices used in surgicalprocedures are selectively coated with Parylene to improve their lubricity andto provide selective electrical insulation. The coating also protects and lubricateshypodermic needles and can create a biocompatible barrier on implantabledevices and prosthetic hardware. Parylene’s unique properties include preciseconformance to substrate topography, pinhole-free coverage in very thin layers,and the ability to penetrate and coat complex surfaces. Parylene film resistschemical attack from organic solvents, inorganic reagents, and acids; itadheres well to many surfaces, and offers exceptional dielectric strength.Parylene has a lubricious surface, with a coefficient of friction whichapproaches that of PTFE (Teflon).

Parylene is the ideal choice for most types of substratesincluding glass, ceramics, plastics, metals, elastomers and silicone rubber.Parylene’s optically clear coatings have the ability to conform to any shapesuch as sharp edges and points. Parylene does not promote the growth ofbiologics. Its surface is unsuitable for the proliferation of bacteria andother pathogens.

Benefits of Parylene Medical Coating:

·        Biocompatible

·        Biologically stable

·        Chemically inert

·        Dry-film lubricity

·        FDA approved

·        No curing cycle

·        Non-toxic

·        Resistant to fungal and bacterial proliferation

·        Solvent free

·        USP Class VI

Parylene Medical Application Examples:

·        Catheters

·        Medical seals

·        Medical elastomers

·        Medical coils

·        Hearing aids

·        Implants/Pacemakers

·        Stents

·        Mandrels

·        Electrosurgical instruments

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