Teflon® vascular grafts

The preliminary results of a recent study on expanded Teflon vascular grafts show that certain gel-formers can be used as sealants for these microporous implants. As sealants, they can also be used as carriers for the controlled delivery of bioactive agents to prolong patency of the grafts. 

Poly(tetrafluoroethylene) (PTFE), more commonly known as Teflon (DuPont) and Goretex (expanded PTFE), is found in vascular grafts. The polymer has exceptionally good resistance to chemicals. 

Poly(tetrafluoro ethylene) (PTFE) TEFLON Dupont Replace urinary tissues, vascular graft, guided tissue regenerations, orbital reconstruction, facial reconstruction, rhinoplasty... 

Vascular grafts are used in surgery to replace damaged thick arteries or veins 6 mm, 8 mm, or 1 cm in diameter. Commercially available vascular grafts are produced from polyester (e.g. Dacron) or PTFE (e.g. Teflon) with either woven or knitted structures... 

Edwards WS. Clinical experience with Teflon grafts. In Wesolowski SA, Dennis C, editors. Fundamentals of Vascular Grafting. New York McGraw-Hill 1970. p. 367. 

Polytetrafluoroethylene (PTFE, Teflon, Fluorel) is best known for its excellent chemical stability and low coefficient of friction. Expanded PTFE (ePTFE) contains micropores created by stretching PTFE film and is used in small-diameter vascular grafts and for artificial heart valve sewing rings... 

Grafts are also frequently employed in the upper part of the body to reconstmct damaged portions of the aorta and carotid arteries. In addition, grafts are used to access the vascular system, such as in hemodialysis to avoid damage of vessels from repeated needle punctures. Most grafts are synthetic and made from materials such as Dacron or Teflon. Less than 5% of grafts utilized are made from biological materials. 

Polytetrafluoroethylene (Polytef) is widely used in industry. Teflon is used in household appliances to avoid sticking of food. Polytef paste is used for a variety of medical purposes, including replacement grafts in vascular surgery, vocal cord or fold augmentation, and correction of vesicoureteric reflux and urinary incontinence. 

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