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New Lubricious coatings from Bayer MaterialScience LLC enable improved performance of medical devices

Published on 2010-04-06. Author : SpecialChem

PITTSBURGH -- Bayer MaterialScience LLC recently introduced Baymedix™ CL 100, a lubricious surface treatment for medical devices which gives a durable coating with an especially low coefficient of wet friction. The exceptional lubricity of this new product complements Bayer MaterialScience LLC's existing portfolio of hemocompatible polyurethane-based hydrophilic coatings.

Lubricious coatings have found widespread use on a variety of medical devices where clinicians need to reduce the amount of friction encountered between the device and a patient's tissue. For instance, they give surgeons better handling and maneuverability when performing procedures like cardiovascular stenting.

Baymedix™ CL 100 can be adapted to many substrates but is especially suitable for application to elastomeric materials common in catheters, such as polyether-block amide (Pebax®), thermoplastic polyurethane (TPU), and nylon. Impressively low coefficients of wet friction, 0.02-0.03, have been achieved on several prototype devices.

Distinct from other lubricious and hydrophilic coatings, Baymedix™ CL 100 is directly grafted onto the surface of the medical device rather than applied as a separate coating. As a result, the coating is covalently attached to the substrate, giving superb adhesion and durability. This also means an especially thin coating of no more than a few microns.

The activation and surface modification processes take place in aqueous conditions, without solvents that can complicate manufacture. The process is scalable and suitable for various medical devices, since the raw materials are affordable and no special equipment is needed to cure the coatings.

Especially unique about Baymedix™ CL 100 is the ability for the product to be applied to the lumens, or inside surface, of catheters. Lumen coatings are useful where one catheter or device needs to be passed through another. "Because the coating is grown directly from the device surface, there's really no limit to the shape of part we can treat," explains Dr. Paul Nowatzki, medical business development manager, Bayer MaterialScience LLC.

Bayer is committed to building a medical coatings business and is actively seeking customer feedback on this new product concept. Bayer is able to coat customer samples in its facilities and return the coated parts for evaluation. In addition, Bayer is well prepared to provide manufacturing and regulatory support to help ensure the success of customers' medical devices.

About Bayer MaterialScience:

Bayer MaterialScience LLC is one of the leading producers of polymers and high-performance plastics in North America and is part of the global Bayer MaterialScience business with approximately 14,300 employees at 30 production sites around the world and 2009 sales of 7.5 billion euros. The company manufactures high-tech polymer materials and develops innovative solutions for products used in many areas of daily life. The main segments served are the automotive, electrical and electronics, construction, medical, and sports and leisure industries. Sustainability is central to Bayer MaterialScience LLC's business and is based around the key areas of innovation, product stewardship, excellence in corporate management, social responsibility and respect for the environment.

Source: Bayer MaterialScience

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