Encapsulated intervertebral disc prosthesis and methods of manufacture

Abstract

The present invention relates generally to intervertebral disc repair devices and methods of manufacture. A method of manufacturing a dynamically responsive encapsulated intervertebral disc repair device that prevents the flow of disc material out of the disc, provides support to the anulus fibrosus, and shields the nerves of the anulus and spinal cord, is provided.

1 . A method of making an intervertebral disc implant comprising: 
 providing a barrier frame having first and second sides;    positioning a first membrane adjacent the first side and a second membrane adjacent the second side;    applying force such that the first membrane contacts the second membrane at one or more points; and    heating the first and second membrane to form bonds at the one or more points.    
     
     
         2 . The method of  claim 1 , wherein said first membrane is attached to said second membrane.  
     
     
         3 . The method of  claim 1 , wherein said first membrane and said second membrane are opposing sides of an envelope.  
     
     
         4 . The method of  claim 1 , wherein said positioning step comprises positioning at least a portion of the membrane beyond the frame.  
     
     
         5 . The method of  claim 1 , wherein said one or more points are positioned beyond the periphery of the frame.  
     
     
         6 . The method of  claim 1 , wherein said positioning step comprises positioning an ePTFE membrane.