US2007027551A1PendingUtilityA1

Composite self-cohered web materials

46
Individually held — no corporate assignee on recordPriority: Jul 29, 2005Filed: Jul 29, 2005Published: Feb 1, 2007
Est. expiryJul 29, 2025(expired)· nominal 20-yr term from priority
Inventors:Ted R. FarnsworthCharles FlynnCharles F. White
A61B 17/07292Y10T442/681Y10T428/1317A61L 31/148A61L 31/146Y10T428/1376
46
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Claims

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.

Claims

exact text as granted — not AI-modified
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.  
   
   
       2 . The implantable article of  claim 1  further comprising a framework attached to said hollow tube.  
   
   
       3 . The implantable article of  claim 2  wherein said framework is a metallic material.  
   
   
       4 . The implantable article of  claim 2  wherein said framework is made of a bioabsorbable material.  
   
   
       5 . The implantable article of  claim 1  wherein the percent porosity is greater than ninety-one in the absence of additional components.  
   
   
       6 . The implantable article of  claim 5  further comprising a framework attached to said hollow tube.  
   
   
       7 . The implantable article of  claim 6  wherein said framework is a metallic material.  
   
   
       8 . The implantable article of  claim 7  wherein said framework is a bioabsorbable material.  
   
   
       9 . The implantable article of  claim 1  wherein the at least one semi-crystalline polymeric component is covalently bonded to at least one amorphous polymeric component.  
   
   
       10 . The implantable article of  claim 9  wherein the components comprise a block copolymer.  
   
   
       11 . The implantable article of  claim 1  wherein the at least one semi-crystalline polymeric component is blended with the at least one amorphous polymeric component.  
   
   
       12 . The implantable article of  claim 11  wherein at least one of the components is a block co-polymer.  
   
   
       13 . The implantable article of  claim 1  wherein at least one semi-crystalline polymeric component has a melting point greater than eighty degrees centigrade (80° C.).  
   
   
       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.  
   
   
       15 . The implantable article of  claim 14  wherein said implantable article has a percent porosity greater than ninety-one in the absence of additional components.  
   
   
       16 . The implantable article of  claim 14  further comprising a framework attached to said hollow tube.  
   
   
       17 . The implantable article of  claim 15  wherein said framework is a metallic material.  
   
   
       18 . The implantable article of  claim 15  wherein said framework is made of a bioabsorbable material.  
   
   
       19 . The implantable article of  claim 14  wherein the percent porosity is greater than ninety-one in the absence of additional components.  
   
   
       20 . The implantable article of  claim 19  further comprising a framework attached to said hollow tube.  
   
   
       21 . The implantable article of  claim 20  wherein said framework is a metallic material.  
   
   
       22 . The implantable article of  claim 21  wherein said framework is a bioabsorbable material.  
   
   
       23 . The implantable article of  claim 14  wherein the at least one semi-crystalline polymeric component is covalently bonded to at least one amorphous polymeric component.  
   
   
       24 . The implantable article of  claim 23  wherein the components comprise a block copolymer.  
   
   
       25 . The implantable article of  claim 14  wherein the at least one semi-crystalline polymeric component is blended with the at least one amorphous polymeric component.  
   
   
       26 . The implantable article of  claim 25  wherein at least one of the components is a block co-polymer.  
   
   
       27 . The implantable article of  claim 14  wherein at least one semi-crystalline polymeric component has a melting point greater than eighty degrees centigrade (80° C.).  
   
   
       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.  
   
   
       29 . The implantable article of  claim 28  wherein the percent porosity is greater than ninety-one in the absence of additional components.  
   
   
       30 . The implantable article of  claim 28  wherein the at least one semi-crystalline polymeric component is covalently bonded to at least one amorphous polymeric component.  
   
   
       31 . The implantable article of  claim 30  wherein the components comprise a block copolymer.  
   
   
       32 . The implantable article of  claim 28  wherein the at least one semi-crystalline polymeric component is blended with the at least one amorphous polymeric component.  
   
   
       33 . The implantable article of  claim 32  wherein at least one of the components is a block co-polymer.  
   
   
       34 . The implantable article of  claim 28  wherein at least one semi-crystalline polymeric component has a melting point greater than eighty degrees centigrade (80° C.).

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