Composite self-cohered web materials
First Claim
1. An implantable 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, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one amorphous polymeric component, wherein the filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said implantable article has a percent porosity greater than ninety in the absence of additional components, and wherein said implantable article is in the form of a hollow tube.
3 Assignments
0 Petitions
Accused Products
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.
-
Citations
34 Claims
- 1. An implantable 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, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one amorphous polymeric component, wherein the filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said implantable article has a percent porosity greater than ninety in the absence of additional components, and wherein said implantable article is in the form of a hollow tube.
- 14. An implantable 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, wherein said filaments comprise a first semi-crystalline polymeric component covalently bonded to or blended with at least one additional semi-crystalline polymeric component, wherein the filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said implantable article has a percent porosity greater than ninety in the absence of additional components, and wherein said implantable article is in the form of a hollow tube.
- 28. An implantable 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, wherein said filaments comprise at least one semi-crystalline polymeric component covalently bonded to or blended with at least one amorphous polymeric component, wherein the filaments possess partial to full polymeric component phase immiscibility when in a crystalline state, wherein said implantable article has a percent porosity greater than ninety in the absence of additional components, and wherein said porous web is in the form of a corrugated tube capable of increasing in length and diameter.
Specification