Blog - Orion

May 2014

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  • Improving the Surface Friction of Silicone Elastomer Parts
    Posted: 5/29/2014
    Medical Device Technology Magazine
    The relatively high coefficient of friction of silicone elastomers can limit the range of applications of these materials. A liquid silicone rubber top coat can be used to improve surface friction of silicone elastomer parts. It can be applied using conventional coating methods. The performance benefits it offers and potential product applications are described.

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    Posted: 5/16/2014
    Study Indicates Silver-coated Catheters Reduce Urinary Tract Infections

    Using silver-coated catheters for patients significantly reduced the most common hospital-acquired infection, according to a study published in the April issue of Urologic Nursing, the journal of the Society of Urological Nurses and Associates...

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  • Silver-Coated Endotracheal Tubes Cut Down on Infections
    Posted: 5/14/2014
    MONDAY, May 19 (Washington Post - HealthDay News) -- Endotracheal tubes coated with silver dramatically reduce infections from highly resistant bacteria, researchers report.
    Patients on ventilators breathe through a tube placed through their trachea and into the lung, and they are at risk for developing what is called ventilator-associated pneumonia.
    "Ventilator-associated pneumonia can be caused by a variety of pathogens," said lead researcher Dr. Andrew Shorr, from the Washington Hospital Center in Washington, D.C. "We are clearly worried about some pathogens more than others, such as MRSA."

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  • Plastics Technology Magazine - August 2005
    Posted: 5/10/2014
    Fiber-reinforced and mineral-filled compounds are not always compatible with use in dynamic applications, where parts slide, rotate, pivot, or move across each other. "When a glass-filled part rubs against a metal surface or even a similar glass-filled surface, rapid abrasion takes place," says George Osterhout, v.p. of Dimension Bond, a Chicago-based supplier of a specialized coating service that can address this problem. "The reason for the abrasion is minute ends of the fiber reinforcing materials protruding from the surface of the filled part," adds Osterhout. The sharp ends of the fiber can fracture and cut into the mating surfaces. This can restrict relative motion between the parts, and the part surfaces may instead "cling" to each other...

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  • Nanotech Silver Fights Microbes in Medical Devices
    Posted: 5/8/2014
    The number of infections linked to medical devices has fueled an explosion of research in surface science. The goal is to find a way to prevent the conditions that trigger life-threatening bloodstream infections.
    Nosocomial, or hospital-related bacterial infections, are estimated to be the fifth-leading cause of death in the United States, after heart disease, cancer, stroke, and pneumonia or flu.

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  • ZincGlide® Bonded Film
    Posted: 5/8/2014
    The near-net shape and complex configurations of die cast zinc parts make them cost effective for thousands of industrial, appliance, tool, and housewares applications. Their limitation, however, lies in dynamic conditions where mating surfaces rub together repeatedly, such as on cams, plungers and pushrods, slides and carriage guides, bearing surfaces, thrust surfaces, gears, valve and switch parts, wear or end plates, latches and pivots.
    When zinc parts rub against other parts; particularly other zinc parts; galling (adhesive wear) occurs. The more rubbing that takes place and the greater the load, the worse galling becomes, and the surfaces tend to cling to each other. In the early symptoms, galling causes moving parts to hesitate, plungers to stick, levers to bind...

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  • Using Risk Analysis to Develop Coated Medical Devices
    Posted: 5/1/2014
    The popularity of coated devices is at an all-time high. However, there are challenging technical and regulatory obstacles when adding a coating to a device...
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