Woven Structure of Elastic Vascular Implants
FiberMed11: Book of Abstracts and Proceedings 2011
Andrejs Lukjančikovs, Viktorija Kancēviča, Alberts Auzāns

Surgeons use tubular synthetic implants to replace damaged sections of natural blood vessels. Various scientists suggest a variety of methods and technologies of manufacture of artificial prostheses. Innovative designs of woven implants are actively being developed. The main task of this study is to create new design options for elastic structure of woven hollow tube and to produce vascular implants to ensure the best incorporation of the synthetic implant into total vascular system of the body. Structure of these implants composed of several type textile filaments and special composition of impregnated biomaterials. Implant is manufactured by woven method as a woven hollow tube using special weaves. In the process of weaving were used polyester and polyurethane yarns. Innovative woven product has the necessary biomechanical properties: tensile strength; circumferentially and longitudial elastic deformation; modulus of elasticity. This woven tube is further processed, including impregnation with a solution of biologically compounds. Solutions with various viscosity and structure were used and different proportions were studied in the course of the previous experiment. Natural elastic membrane was formed on the porous wall of the implant and in the space between the fibers. As a result woven frame and special impregnation created a composite matrix. Such impregnation ensures zero hydro permeability of the wall of the woven prosthesis. This factor is especially important during the first hours and days after implantation. In such circumstances, the blood does not leak through the wall and significantly reduces the risk of hemorrhage. Such impregnation of implant also provides better biocompatibility with natural body tissues and the successful integration into the vascular circulatory system. Natural biological tissues grow into the walls of the implant. Neointima is formed on the inner wall into the lumen of the implant. Composite structure of woven implant provides the normal long-term process of hemodynamics. A positive result was confirmed by physical and histological tests.

Atslēgas vārdi
Woven implant, vascular implant

Lukjančikovs, A., Kancēviča, V., Auzāns, A. Woven Structure of Elastic Vascular Implants. No: FiberMed11: Book of Abstracts and Proceedings, Somija, Tampere, 28.-30. jūnijs, 2011. Tampere: Tampere University of Technology, 2011, 16.-16.lpp. ISBN 978-952-15-2607-7.

Publikācijas valoda
English (en)
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