摘要:
Compositions of the invention for regenerating defective or absent myocardium comprise an emulsified or injectable extracellular matrix composition. The composition may also include an extracellular matrix scaffold component of any formulation, and further include added cells, proteins, or other components to optimize the regenerative process and restore cardiac function. Methods for regenerating defective or absent myocardium apply a composition to a site of myocardium in need of regeneration using a delivery mode appropriate for the particular formulation.
摘要:
A prosthetic tissue valve for aortic, pulmonary, mitral or tricuspid valve replacement is described herein. A sewing ring for use with the prosthetic tissue valve is also described. The valve can have a circumference that is a predetermined distance larger than the circumference of an annulus in a defective valve. The valve can be substantially planar in an unstressed position before attachment at the annulus and substantially non-planar upon attachment in a biased position at the annulus. Methods are provided for placing the valve as described herein in the biased position within the annulus of the defective valve.
摘要:
A prosthetic tissue valve for aortic, pulmonary, mitral or tricuspid valve replacement is described herein. A sewing ring for use with the prosthetic tissue valve is also described. The valve can have a circumference that is a predetermined distance larger than the circumference of an annulus in a defective valve. The valve can be substantially planar in an unstressed position before attachment at the annulus and substantially non-planar upon attachment in a biased position at the annulus. Methods are provided for placing the valve as described herein in the biased position within the annulus of the defective valve.
摘要:
The invention is to a composition for reconstruction, replacement or repair of a defect in or dsmage to intracardiac tissue comprising a patch, emulsion, injectable solution or other composition comprising extracellular matrix. As extracellular matrix can assimilate with the intracardiac tissue to help generate healthy functioning tissue, using extracellular matrix to address a defect in intracardiac tissue can obviate the need for second or subsequent open heart surgeries, or if the composition can be delivered in a minimally invasive medical procedure, can obviate the need for open heart surgery altogether. Conduction of the intracardiac tissue may also be restored using extracellular matrix material to reconstruct, replace or repair the damaged intracardiac tissue.
摘要:
A prosthetic valve comprising a tubular shaped sheet member comprising an extracellular matrix (ECM) composition, the sheet member having a plurality of ribbons having proximal and distal ends, the distal ends of the ribbons projecting from the sheet member proximal end.
摘要:
A biocompatible and biodegradable construct comprising a base expandable member and an outer coating comprising poly(glycerol sebacate) (PGS), the base expandable member comprising acellular extracellular matrix (ECM) derived from a mammalian tissue source, the acellular ECM exhibiting a flexible, porous, expandable structure, which is adapted to expand upon exposure to and absorption of a bodily fluid, wherein the construct seals a perivalvular leak when disposed proximate thereto.
摘要:
A prosthetic valve comprising a tubular shaped sheet member comprising an extracellular matrix (ECM) composition, the sheet member having a plurality of ribbons having proximal and distal ends, the distal ends of the ribbons projecting from the sheet member proximal end.