Weaving

 Woven Graft

Weaving: The process of interlacing two yarns so that they cross each other at right angles to produce a woven fabric.  A woven fabric is comprised of warp yarns in the longitudinal direction and weft yarns in the crosswise direction.  The warp and weft yarns may be the same fiber and same size or they may be different in fiber type and size.

Key characteristics of woven fabrics include:

  • Dimensional stability
  • Flexible
  • Low elongation
  • Controlled porosity
  • High tensile strength in both longitudinal and crosswise directions
  • High burst strength
  • High suture retention strength

The value of woven grafts in an implantable medical device include:

  • Low profile design
  • Low delivery forces required
  • Ease of Deployment
  • Resilient
  • High degree of coagulation
  • Controlled permeability
  • Strength
  • Compressibility
  • Insulation against friction and tissue wear
  • Abrasion resistance
  • Mechanical patency

Fabrics can be woven into multiple shapes based on your design requirements.  Component shapes include:

  • Flat sheets
  • Narrow fabric tapes
  • Straight tubes
  • Bifurcated tubes
  • Tapered tubes
  • Fenestrated tubes

ATEX possesses the expertise to produce a wide variety of component shapes from a woven fabric.