Free Newsletter
Register for our Free Newsletters
Newsletter
Zones
Advanced Composites
LeftNav
Aerospace
LeftNav
Amorphous Metal Structures
LeftNav
Analysis and Simulation
LeftNav
Asbestos and Substitutes
LeftNav
Associations, Research Organisations and Universities
LeftNav
Automation Equipment
LeftNav
Automotive
LeftNav
Biomaterials
LeftNav
Building Materials
LeftNav
Bulk Handling and Storage
LeftNav
CFCs and Substitutes
LeftNav
Company
LeftNav
Components
LeftNav
Consultancy
LeftNav
View All
Other Carouselweb publications
Carousel Web
Defense File
New Materials
Pro Health Zone
Pro Manufacturing Zone
Pro Security Zone
Web Lec
Pro Engineering Zone
 
 
 
News

Bayer's Lipid-Resistant Makrolon

Bayer MaterialScience AG : 06 June, 2001  (Company News)
Infusion systems make it possible for seriously ill patients to be given precisely the medicines and nourishment they need.
The materials used to manufacture these systems come into direct contact with blood and intravenous fluid products and are required to meet strict regulations with respect to biocompatibility, sterilizability, resistance and strength.

With this in mind, B. Braun Medical AG decided to use Bayer's Makrolon® Rx-1805 lipid-resistant polycarbonate resin as the material for its Discofix1 range of three-way stopcocks and manifolds. The Swiss subsidiary of the global B. Braun Group worked in cooperation with researchers at Bayer's Plastics Business Group during the development of this new grade of Makrolon polycarbonate.

'Three-way stopcocks and manifolds are the most highly stressed components of an infusion system. The crucial factor when it came to choosing the material was the superior stress-crack resistance displayed by Makrolon Rx-1805 when in contact with lipid emulsions,' explained Dr. Dirk Möckel, who works in the European marketing section of Bayer's Plastics Business Group and is responsible for the medical sector.

'The excellent dimensional stability of the resin also ensures that tube connections remain permanently secure.'

The three-way stopcocks are supplied in an individualsterile pack and are sterilized with ethylene oxide or gamma rays. Thanks to a special form of stabilization, exposure of the material to gamma radiation causes only slight discoloration that largely disappears with time.

The transparency of the polycarbonate makes the medical staff's work easier by allowing a fast and accurate visual check of the infusion procedure. 'This means a higher level of safety for both patients and staff,' said Möckel.

Simple, low-cost processing by injection molding is another benefit to Makrolon Rx- 1805, giving it a competitive edge over expensive specialty polymers like polysulfones and copolyamides.

Makrolon Rx-1805 complies with the strict requirements of ISO Standard 10993-1 for biocompatibility of plastics that are used in contact with human tissue for 30 days or less.
Bookmark and Share
 
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
 
   Â© 2012 NewMaterials.com
Netgains Logo