Highly porous self-cohered web materials
AssigneeGore Enterprise Holdings, Inc.
InventorsTed R. Farnsworth, Charles Flynn, Charles F. White
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Abstract
The present invention is directed to implantable bioabsorbable non-woven self-cohered web materials having a high degree of porosity. The web materials are very supple and soft, while exhibiting proportionally increased mechanical strength in one or more directions. The web materials often possess a high degree of loft. The web materials can be formed into a variety of shapes and forms suitable for use as implantable medical devices or components thereof.
Claims32
A medical article comprising melt-formed continuous filaments intermingled to form a porous web wherein said filaments are self-cohered to each other at multiple contact points and have a mean diameter, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one amorphous polymeric component, wherein said filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said porous web has a percent porosity greater than ninety;
- wherein the mean diameter of said filaments is from sixteen (16) to twenty (20) microns.
A medical article comprising melt-formed continuous filaments intermingled to form a porous web wherein said filaments are self-cohered to each other at multiple contact points and have a mean diameter, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one additional semi-crystalline polymeric component, wherein said filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said porous web has a percent porosity greater than ninety;
- and wherein the mean diameter of said filaments is from sixteen (16) to twenty (20) microns.
A medical article comprising melt-formed continuous filaments intermingled to form a porous web wherein said filaments are self-cohered to each other at multiple contact points and have a mean diameter, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one amorphous polymeric component, wherein said filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said porous web has a percent porosity greater than ninety;
- and wherein the mean diameter of said filaments is from sixteen (16) to twenty (20) microns.
A medical article comprising melt-formed continuous filaments intermingled to form a porous web wherein said filaments are self-cohered to each other at multiple contact points and have a mean diameter, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one additional semi-crystalline polymeric component, wherein said filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said porous web has a percent porosity greater than ninety;
- and wherein the mean diameter of said filaments is from sixteen (16) to twenty (20) microns.
Dependencies are inferred from the claim text.