Teflon


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polytef

 [pol´ĕ-tef]
the pharmaceutical name for Teflon, a polymer of tetrafluoroethylene, used as a surgical implant material for many prostheses, such as artificial vessels and orbital floor implants, and for many applications in skeletal augmentation and skeletal fixation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Teflon

Polytetrafluoroethylene A proprietary name for a biologically inert polymeric molecule resistant to organic solvents, with a melting temperature of 225ºC, which is widely used in medicine Medical devices Teflon has diverse medical applications including use in annuloplasty rings, batteries for defibrillators and pacemakers, cardiac patches, vena caval clips, vascular grafts, implantable pumps, implants for impotence, implants for incontinence, prosthetic joints, bone replacements, pledgets, various types of sheeting, dialysis shunts, sutures, myringotomy tubes, valved conduits, and in low-temperature chemical reactions. Cf Gore-Tex.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Two different geometries were employed: in one a monoenergetic and monodirectional pencil beam of neutrons impinges on a cylindrical Teflon sheet placed above the Ge detector, Fig.
Treatment of vesicoureteric reflux by endoscopic injection of Teflon. Br Med J (Clin Res Ed) 1984;289:7-9.
Non-absorbable Teflon felt is intended for use in cardiac surgery, most commonly as a patch where there is a tissue defect but also as a buttress for sutures, using small pledgets for vessel repair.
Solution co-polymerization of DEGDMA with each of AM, MAA or HEMA using a-irradiation as a radical polymerization initiation technique under the same aforementioned experimental conditions were carried out in order to obtain a graft co-polymers onto Teflon membrane with different hydrophilic and hydrophobic moieties with amphiphilic properties according to the relative ratio between the two components in the initial mixture.
"Teflon surface protector combines unique chemical and physical features to help create surfaces that are durable, easy to clean, and dirt pick-up resistant, making them perfect for various applications across this region," said Luis Rebollar, Emea regional director, DuPont Titanium Technologies.
"The op itself is very rare - I've done it 17 times in ten years but this is a first with Teflon," the Sun quoted Marzouk as saying.
But if you think there's room for improvement, try using Teflon in and Ebony Star--just save the Turtle Wax and Armor All for your car.
Four months postoperatively, she underwent a procedure to improve her voice; this procedure included the injection of Teflon into the left vocal fold.
Apply a coat of International One Coat Tile Paint with Teflon Surface Protector in Jet Black.
Teflon, it turns out, gets its nonstick properties from a toxic, nearly indestructible chemical called PFOA, or perfluorooctanoic acid.
Environmental Protection Agency (EPA) to reduce the use of perfluorooctanoic acid, or PFOA, in the production of its trademark Teflon non-stick product, the DuPont Company recently announced that it would phase out its production and use of the chemical altogether by 2015 (see "Don't Pan-ic!" Your Health, May/June 2006).