The invention provides a hollow porous
absorbable suture line and a preparation method thereof. Non-absorbable woven
yarn and absorbable axial
yarn are prepared into the hollow porous
absorbable suture line through the two-dimensional three-axial weaving technology and the
thermal treatment technology. The preparation method comprises the steps that firstly, woven
yarn and axial yarn are performedon the surface of a lining tube, a
suture line with the porous surface is obtained, and the pore size is adjustable in the axial direction; then, due to the
thermal treatment technology, the axial yarn is partially fused to fix a weaving point of the woven yarn; finally, the lining tube is removed, and the hollow porous
suture line of the stable structure is obtained. The
suture line is partiallyabsorbable, mechanical supporting can be ensured, and the non-absorbable ratio can be lowered; due to the hollow porous structure,
tissue ingrowth is facilitated, tissue regeneration is promoted, when the suture line is in use, the stress of the suture line is in a ribbon shape, and
cutting of tissue is reduced. By adopting the integrated forming technology by combining weaving and thermal setting, no
welding, bonding and other post-treatment technologies are needed, the procedures are simple, and
processing is convenient.