Hernia repair grafts having anti-adhesion barriers
AssigneeTELA Bio, Inc.
InventorsSkott GREENHALGH, John-Paul ROMANO, Travis SPEICHER
Life of this patent
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Abstract
Materials for soft tissue repair, and in particular, material for hernia repair. These materials may be configured as an implant, such as a graft, that may be implanted into a patient in need thereof, such as a patient having a hernia or undergoing a hernia repair surgical procedure. These grafts may include a first layer comprising a substrate (e.g., mesh) and a second layer comprising a sheet of anti-adhesive material. The layers may be attached with a plurality of relatively small attachment sites that are separated by regions in which the two layers are not attached, to provide a highly compliant graft.
Claims30
A hernia repair graft comprising:
- a first layer stacked onto a second layer;
- wherein the first layer comprises:
- a mesh formed of a non-absorbable material and a first pattern embroidered into the mesh with a bioabsorbable material;
- wherein the second layer comprises a sheet of anti-adhesive material comprising an extracellular matrix (ECM) material;
- further wherein the second layer is flexibly attached to the first layer with a second pattern of discrete attachment sites, wherein the second pattern of discrete attachment sites alters the compliance of the stacked first and second layers by less than 15% and adjacent regions of the first layer and second layer between the discrete attachment sites may slide relative to each other.
A hernia repair graft comprising:
- a first layer stacked onto a second layer;
- wherein the first layer comprises:
- a mesh formed of a non-absorbable material and a first pattern stitched into the mesh with a bioabsorbable material;
- wherein the second layer comprises an anti-adhesive material comprising a plurality of sheets of extracellular matrix material (ECM);
- further wherein the second layer is flexibly attached to the first layer with a second pattern of discrete stitched attachment sites, wherein the second pattern of discrete stitched attachment sites is less dense than the first pattern stitched into the mesh, and wherein adjacent regions of the first layer and second layer between the discrete attachment sites may slide relative to each other.
A hernia repair graft comprising:
- a first layer stacked onto a second layer;
- wherein the first layer comprises:
- a mesh formed of a non-absorbable material and a first pattern stitched into the mesh with a bioabsorbable material, wherein the first pattern decreases the compliance of the the mesh so that the compliance of the hernia repair apparatus will increase over time in a patient as the bioabsorbable material is absorbed;
- wherein the second layer comprises an anti-adhesive material comprising a sheet of extracellular matrix material (ECM);
- further wherein the second layer is flexibly attached to the first layer with a second pattern of discrete stitched attachment sites, wherein adjacent discrete attachment sites are separated by a distance of between 0.5 mm and 30 mm and wherein the second pattern of discrete stitched attachment sites is less dense than the first pattern stitched into the mesh, and further wherein adjacent regions of the first layer and second layer between the discrete attachment sites may slide relative to each other.
Dependencies are inferred from the claim text.