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Synthetic vascular prostheses
Marcin H Struszczyk1, Paweł Bednarek, Krzysztof Raczyński
1TRICOMED S.A., Lodz. martinst@skrzynka.pl
Polimery W Medycynie
|October 24, 2002
Summary
Polyethylene terephthalate (PET) and Teflon are superior synthetic graft materials, maintaining strength post-implantation. TRICOMED S.A.
Area of Science:
- Biomaterials Science
- Vascular Surgery
- Textile Engineering
Background:
- Polyethylene terephthalate (PET) and Teflon are key synthetic materials for vascular grafts, outperforming older materials like nylon.
- Unlike other synthetics, PET and Teflon retain tensile strength after implantation, ensuring long-term graft integrity.
- TRICOMED S.A. offers a range of knitted vascular implants, including Dallon, Dallon H, and Tricogel, all derived from PET fibers.
Purpose of the Study:
- To detail the properties and applications of synthetic vascular grafts, specifically those produced by TRICOMED S.A.
- To highlight the advantages of PET and Teflon-based grafts over traditional materials in vascular surgery.
- To describe the innovative features of Dallon, Dallon H, and Tricogel grafts, including their surface characteristics and performance.
Main Methods:
- Characterization of synthetic grafting materials, focusing on Polyethylene terephthalate (PET) and Teflon.
- Analysis of knitted vascular implants (Dallon, Dallon H, Tricogel) manufactured from PET fibers.
- Evaluation of graft surface properties, including velour texture for tissue ingrowth and gelatin sealing for intraoperative tightness.
Main Results:
- PET and Teflon demonstrate superior tensile strength retention compared to nylon, Ivalon, and Vinyon-N after implantation.
- Dallon and Dallon H feature a double velour surface for enhanced tissue ingrowth and come in various sizes.
- Dallon H exhibits increased blood susceptibility, reducing preclotting blood demand by 75%; Tricogel provides immediate intraoperative tightness via porcine gelatin sealing.
Conclusions:
- PET and Teflon-based vascular grafts offer significant advantages in durability and performance for surgical applications.
- The innovative designs of Dallon, Dallon H, and Tricogel, including velour surfaces and gelatin sealing, improve graft integration and reduce complications.
- These synthetic grafts represent advancements in vascular surgery, providing reliable and effective solutions for patients.