Textiles for impla
Textiles for implantation
These materials used in effecting repairs to the body whether it be wound closures sutures or replacement surgery (Heart prosthesis-artificial ligaments, surgical meshes …etc) Although the natural way to replace a defective part of the body would be transplantation this is not always possible due to several reasons including availability, performance requirement… etc, Therefore physicians often have to use artificial substitute (biomaterial) such as biotextiles, of origin or synthetic material. A part used to replace a body part is referred to as prosthesis. Although textile materials depend on specific application in general, The biological requirements for a satisfactory artificial implant may be stated as follow:
1-A suitable artificial surface of the body cells to be easily adhered and grown on.
2-Porosity, which determines the rate at which tissue will grow and encapsulate the implant (implant material should be sufficiently porous.
3-Fiber diameter in general, should be smaller than the cells for their adherence, to make human tissues capable of encapsulating.
4-Biodegradability or biostability depending on the application
5-non-toxicity where fiber polymer or fabrication techniques must be –non-toxic and fibers should be free of contaminants
The Implantable material must meet mechanical requirements for the particular application biocompatibility for examples requires that the biotextiles must interact, with the host in a controlled and predictable way. In addition to these blood cells cause formation of destructive blood cloth. Application of textiles as implant include abdominal wall, artery , biohybrid organs , bone , heart valve and wall, vein, hip, joint ,ligament , tendon , trachea …etc