Medically implantable textile formed from a heat-activated crimping textile

Abstract

A heat-activated crimping textile is disclosed including a plurality of a first yarn, a plurality of a second yarn interlaced with the plurality of the first yarn, and a plurality of a third yarn interlaced with the plurality of the first yarn, the plurality of the second yarn, or both. The third yarn includes a heat-activated shrinkage factor of greater than 30% when exposed to a predetermined temperature. When the heat-activated crimping textile is exposed to an elevated temperature of at least the predetermined temperature, a plurality of crimps propagates along the heat-activated crimping textile, forming a crimped textile.

What is claimed is: 
     
         1 . A medically implantable textile formed from a heat-activated crimping textile, the heat-activated crimping textile comprising:
 a plurality of a first yarn;   a plurality of a second yarn interlaced with the plurality of the first yarn; and   a plurality of a third yarn interlaced with the plurality of the first yarn, the plurality of the second yarn, or both,   wherein:
 the third yarn includes a heat-activated shrinkage factor of greater than 30% when exposed to a predetermined temperature; and 
 when the heat-activated crimping textile is exposed to an elevated temperature of at least the predetermined temperature, a plurality of crimps propagates along the heat-activated crimping textile, forming a crimped textile such that the heat-activated crimping textile is configured to form a pocket structure in an outer layer for blood capturing potential and a ground region with a tighter interlacement pattern in the crimped textile relative to the heat-activated crimping textile for maintaining a dense ground layer for better clotting potential. 
   
     
     
         2 . The medically implantable textile of  claim 1 , wherein the first yarn includes a heat-activated shrinkage factor of less than 15% when exposed to the predetermined temperature and the second yarn includes a heat-activated shrinkage factor of less than 15% when exposed to the predetermined temperature. 
     
     
         3 . The medically implantable textile of  claim 2 , wherein the first yarn includes a heat-activated shrinkage factor of less than 10% when exposed to the predetermined temperature, wherein the second yarn includes a heat-activated shrinkage factor of less than 10% when exposed to the predetermined temperature, and wherein the third yarn includes a heat-activated shrinkage factor between 35% and 50% when exposed to the predetermined temperature. 
     
     
         4 . The medically implantable textile of  claim 1 , wherein the first yarn includes a heat-activated shrinkage factor of greater than 30% when exposed to a predetermined temperature and the second yarn includes a heat-activated shrinkage factor of greater than 30% when exposed to the predetermined temperature. 
     
     
         5 . The medically implantable textile of  claim 1 , wherein:
 the heat-activated crimping textile is a woven fabric;   the plurality of the first yarn forms a first plurality of wefts;   the plurality of the second yarn forms a first plurality of warps interlaced with the first plurality of wefts by interweaving;   the plurality of the third yarn forms a second plurality of warps interlaced with the first plurality of wefts by interweaving; and   the plurality of crimps propagates along the first plurality of wefts.   
     
     
         6 . The medically implantable textile of  claim 5 , further including a second plurality of wefts comprising a fourth yarn having a heat-activated shrinkage factor of greater than 30% when exposed to the predetermined temperature. 
     
     
         7 . The medically implantable textile of  claim 5 , wherein the woven fabric includes a repeating weaving pattern in which the second plurality of warps interlaces amongst 3-5 of the first plurality of wefts sequentially, then floats across 4-20 of the first plurality of wefts sequentially, and then repeats. 
     
     
         8 . The medically implantable textile of  claim 7 , wherein the second plurality of warps interlaces amongst 3 of the first plurality of wefts sequentially, then floats across 9 of the first plurality of wefts sequentially, and then repeats. 
     
     
         9 . The medically implantable textile of  claim 1 , wherein:
 the heat-activated crimping textile is a warp knit fabric;   the plurality of the first yarn forms a first plurality of warps;   the plurality of the second yarn forms a second plurality of warps interlaced with the first plurality of warps by interlooping;   the plurality of the third yarn forms a third plurality of warps interlaced with the first plurality of warps, the second plurality of warps, or both by interlooping; and   the plurality of crimps propagates along a machine direction of the warp knit fabric.   
     
     
         10 . The medically implantable textile of  claim 9 , wherein the warp knit fabric includes a repeating knit pattern in which the third plurality of warps interloops amongst 1-4 warp ends of the first plurality of warps and the second plurality of warps combined sequentially, then floats across 4-20 courses sequentially of the first plurality of warps and the second plurality of warps combined, and then repeats. 
     
     
         11 . The medically implantable textile of  claim 10 , wherein the third plurality of warps interloops amongst 1 of the warp ends of the first plurality of warps and the second plurality of warps combined sequentially, then floats across 11 of the courses of the first plurality of warps and the second plurality of warps combined sequentially, and then repeats. 
     
     
         12 . The medically implantable textile of  claim 10 , wherein the third yarn floats only across a first side of the heat-activated crimping textile. 
     
     
         13 . The medically implantable textile of  claim 1 , wherein the first yarn and the second yarn are compositionally distinct from one another. 
     
     
         14 . The medically implantable textile of  claim 1 , wherein the first yarn and the second yarn are compositionally indistinct from one another. 
     
     
         15 . The medically implantable textile of  claim 1 , wherein the first yarn, the second yarn, and the third yarn are formed from materials independently selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polyvinylchloride (PVC), polystyrene (PS), polycarbonate (PC), nylons, polylactic acid (PLA), poly (l-lactic acid) (PLLA), polycaprolactone (PCL), poly lactic-co-glycolic acid (PLGA) and combinations thereof. 
     
     
         16 . The medically implantable textile of  claim 1 , wherein the crimped textile has a pleated structure, a ruffled structure, a channeled structure, or combinations thereof. 
     
     
         17 . The medically implantable textile of  claim 1 , wherein the heat-activated crimping textile and the crimped textile formed from the heat-activated crimping textile are substantially unsewn. 
     
     
         18 . The medically implantable textile of  claim 1 , wherein the heat-activated crimping textile and the crimped textile formed from the heat-activated crimping textile are substantially free of needle punctures and key holes. 
     
     
         19 . The medically implantable textile of  claim 1 , wherein the medically implantable textile is a paravalvular leak skirt. 
     
     
         20 . A medically implantable textile formed from a heat-activated crimping textile, the heat-activated crimping textile comprising:
 a first plurality of wefts formed of a first yarn;   a first plurality of warps formed of a second yarn interwoven with the first plurality of wefts; and   a second plurality of warps formed of a third yarn interwoven with the first plurality of wefts,   wherein:
 the first yarn includes a heat-activated shrinkage factor of less than 10% when exposed to a predetermined temperature; 
 the second yarn includes a heat-activated shrinkage factor of less than 10% when exposed to the predetermined temperature; 
 the third yarn includes a heat-activated shrinkage factor between 35% and 50% when exposed to the predetermined temperature; 
 the predetermined temperature is at least 150° C.; 
 when the heat-activated crimping textile is exposed to an elevated temperature of at least the predetermined temperature, a plurality of crimps propagates along the first plurality of wefts, forming a crimped textile having a pleated, ruffled, or channeled structure such that the third yarn extends across a base of each pleat of the pleated structure, across a base of each ruffle of the ruffled structure, or a base of each channel of the channeled structure; 
 the heat-activated crimping textile includes a repeating weaving pattern in which the third yarn interlaces at least 2 of the first plurality of wefts sequentially, then floats across a minimum of 3 of the first plurality of wefts sequentially only across a first side of the heat-activated crimping textile, and then repeats; and 
 the heat-activated crimping textile and the crimped textile formed from the heat-activated crimping textile are substantially unsewn and substantially free of needle punctures and key holes.