The design of a biomedical textile is driven by its end function. The main factors include
Function
The
textile needs to fulfil the purpose for which it was designed, for
example swabs require an absorbent textile, sutures may require a
biodegradable textile, while hospital bedding should be comfortable and
durable.
Biocompatibility
This refers to the reaction of
the textile with blood and tissue in the body. An implantable device
has more potential for reaction than an external device and is,
therefore, subject to tighter regulations. For example an artificial
ligament is permanent and is able to react with blood cells and the
surrounding tissue, compared to an external bandage that is temporary
and only contacts the outer skin tissue.