Medical implant component comprising composite biotextile and method of making

Abstract

Disclosed herein is a medical implant component comprising a composite biotextile, which biotextile comprises i) a polyolefin fibrous construct comprising at least one strand with titer of 2-250 dtex, tensile strength of at least 10 cN / dtex and comprising high molar mass polyolefin fibers; and ii) a coating comprising a biocompatible and biostable polyurethane elastomer comprising polysiloxane in soft segments and / or having one or more hydrophobic endgroups, wherein the polyurethane coating has been applied to at least part of the surface of the biotextile and in an amount of 2.5-90 mass% based on composite biotextile. At least one strand of such composite biotextile, for example a partly coated woven fabric, shows an advantageous combination of good biocompatibility, especially hemocompatibility, high strength and pliability, and laser cuttability; allowing to make pieces of fabric having well-defined regular edges that have high suture retention strength. The invention also provides a method of making the composite biotextile. Further embodiments concern the use of such biotextile in a medical implant component for an implantable medical device and the use of such medical implant component in making an implantable medical device; such as in orthopedic applications and cardiovascular implants. Other embodiments include such medical devices or implants comprising the medical implant component.

Description

technical field [0001] The disclosed invention relates to biotextiles, and more particularly, to medical implant components based on modified polyolefin fiber constructs, to methods of making such components, and to the use of such components in the manufacture of medical implants . Background technique [0002] The term medical textile is generally used for flexible materials made of fibrous networks that are used outside the body and are not in contact with circulating blood or open wounds, such as bandages, dressings, eye masks, incontinence products, braces, surgical Use curtains, masks, etc. Biotextiles refer to non-viable, permanent or temporary fibrous structures such as cables and textiles made of synthetic or natural fibers, which are used in internal (inside the body) or external (outside the body) biological environments as The use of medical devices to prevent, treat or diagnose injury or disease, and thereby improve the health, medical condition, comfort and w...

AI Technical Summary

Problems solved by technology

Specifically, disadvantages of typical stabilization techniques can include (i) the additional profile of components and devices, requiring larger catheters to implant them, (ii) potentially less than optimal blood contact properties such as thrombogenicity Additional material, (iii) deformation of the biotextile at the cutting edge, (iv) insufficient bonding strength of the stabilizing material to increase the risk of embolization of foreign particles in the bloodstream, and (v) stiffening or reduced flexibility of the biotextile

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