Medically implantable textile formed from a heat-activated crimping textile
AssigneeThe Secant Group, LLC
InventorsAmanda K. Weber, Andrew Metzger
Life of this patent
Estimating the term…
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.
Claims20
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.
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.
Dependencies are inferred from the claim text.