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US 12,623,005 B2Granted
Textile products having selectively applied sealant or coating
AssigneeHothouse Medical Limited
InventorsDavid Granville Stevenson, Timothy Rawden Ashton
Life of this patent
Estimating the term…
Abstract
An implantable tubular textile graft includes a water-insoluble elastomeric sealant disposed at the textile tubular wall such that the graft is impermeable to water at 120 mm Hg pressure. The inner surface of the textile tubular wall configured to promote growth of biological tissue and/or promote growth of pseudointima.
Claims17
An implantable textile graft comprising:
- a conduit, comprising a liquid permeable textile tubular wall comprising an inner surface, an intermediate portion, and an outer surface, said textile tubular wall comprising one or more yarns;
- said conduit comprises a cured layer disposed between about 4 mg/cm2 and 19 mg/cm2 of area of the textile tubular wall and comprising a substantially water-insoluble, non-biodegradable elastomeric sealant selected from the group consisting of a silicone-containing polymer, a polyurethane-containing polymer, a polycarbonate-containing polymer, and combinations thereof, disposed on said outer surface and said intermediate portion;
- wherein
- (i) said cured layer on said outer surface does not exhibit signs of delamination when said conduit is pressurized with water at 120 mmHg;
- and
- (ii) after curing of the substantially water-insoluble elastomeric sealant, said conduit has a water permeability of about 0.16 ml/min/cm2 at 120 mmHg pressure or less than 0.16 ml/min/cm2 at 120 mmHg pressure.
3 more elements
An implantable textile graft comprising:
- a conduit, comprising a liquid permeable textile tubular wall comprising an inner surface, an intermediate portion, and an outer surface, said textile tubular wall comprising one or more yarns;
- said conduit comprises a cured layer disposed between about 4 mg/cm2 and 19 mg/cm2 of area of the textile tubular wall and comprising a substantially water-insoluble, non-biodegradable elastomeric sealant selected from the group consisting of a silicone-containing polymer, a polyurethane-containing polymer, a polycarbonate-containing polymer, and combinations thereof, disposed on said outer surface and said intermediate portion;
- wherein
- (i) the water-insoluble elastomeric sealant is penetrating at about 50% or less than 50% into a fabric thickness of the tubular wall;
- and
- (ii) after curing of the substantially water-insoluble elastomeric sealant, said conduit has a water permeability of about 0.16 ml/min/cm2 at 120 mmHg pressure or less than 0.16 ml/min/cm2 at 120 mmHg pressure.
3 more elements
An implantable textile graft comprising:
- a conduit, comprising a liquid permeable textile tubular wall comprising an inner surface, an intermediate portion, and an outer surface, said textile tubular wall comprising one or more yarns;
- said conduit comprises a cured layer disposed between about 4 mg/cm2 and 19 mg/cm2 of area of the textile tubular wall and consisting essentially of a substantially water-insoluble, non-biodegradable elastomeric silicone sealant disposed on said outer surface and said intermediate portion;
- wherein
- (i) said cured layer on said outer surface does not exhibit signs of delamination when said conduit is pressurized with water at 120 mmHg;
- and
- (ii) after curing of the substantially water-insoluble elastomeric silicone sealant, said conduit has a water permeability of about 0.16 ml/min/cm2 at 120 mmHg pressure or less than 0.16 ml/min/cm2 at 120 mmHg pressure.
3 more elements
Dependencies are inferred from the claim text.