Absorbable, permeability-modulated barrier composites and applications thereof
First Claim
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1. An absorbable, permeability-modulated barrier composite comprising:
- a. at least three physiocochemically distinct components;
b. a first component comprising a flexible film comprising a synthetic absorbable polymer selected from the group consisting ofi. a polyaxial copolyester derived from at least two monomers selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione;
ii. a polyether ester derived from a polyether-glycol that is grafted with at least one monomer selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione; and
iii. a polyether-ester-urethane derived from a polyether-glycol that is grafted with at least one monomer selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione, to form a polyether ester glycol, where the polyether ester glycol is interconnected by urethane linkages formed through the reaction of said polyether ester glycol with an aliphatic diisocyanate;
c. a second component comprising a knitted mesh; and
d. a third component comprising an electrostatically spun, non-woven microfibrous fabric;
wherein the flexible film is adjoined directly to the knitted mesh, and the knitted mesh is adjoined directly to the microfibrous fabric, to form a layered composite.
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Abstract
Absorbable barrier composites are designed for modulated gas and water permeability depending on clinical use and are formed of at least two physicochemically distinct components, one of which is a film adjoined to a knitted mesh and/or electrostatically spun, non-woven fabric. Depending on the physicochemical properties of the barrier composite, it can be used in neurological and urinogenital surgical procedures as well as tissue engineering and/or as physical barriers to prevent adhesion formation following several types of surgical procedures.
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Citations
13 Claims
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1. An absorbable, permeability-modulated barrier composite comprising:
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a. at least three physiocochemically distinct components; b. a first component comprising a flexible film comprising a synthetic absorbable polymer selected from the group consisting of i. a polyaxial copolyester derived from at least two monomers selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione;ii. a polyether ester derived from a polyether-glycol that is grafted with at least one monomer selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione; andiii. a polyether-ester-urethane derived from a polyether-glycol that is grafted with at least one monomer selected from the group consisting of glycolide, lactide, ε
-caprolactone, trimethylene carbonate, p-dioxanone, 1,5-dioxepan-2-one and a morpholinedione, to form a polyether ester glycol, where the polyether ester glycol is interconnected by urethane linkages formed through the reaction of said polyether ester glycol with an aliphatic diisocyanate;c. a second component comprising a knitted mesh; and d. a third component comprising an electrostatically spun, non-woven microfibrous fabric; wherein the flexible film is adjoined directly to the knitted mesh, and the knitted mesh is adjoined directly to the microfibrous fabric, to form a layered composite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification