Bone cement compositions comprising fused fibrous compounds

Abstract

The preferred embodiment of the present invention provides novel and unique fused fibrous compounds for addition to and manufacture of bone and dental cement systems and methods of making the same. The preferred embodiment of the fused fibrous compound material made therefrom comprises a rigid three-dimensional network of fibers fused together at their points of contact wherein said network is greater than 60% by volume void space, has mean pore diameters greater than 10 microns, or both. The fused fibrous compound is preferably manufactured from fibers and a fusion source and is added to the composition in particle form.

What is claimed is:  
     
         1 . A bone or dental cement composition comprising: 
 a bone or dental cement; and    Polymeric Rigid Inorganic Material Matrix.    
     
     
         2 . The composition of  claim 1 , wherein the bone or dental cement further comprises polymethacrylate.  
     
     
         3 . The composition of  claim 1 , wherein the bone or dental cement further comprises 
 methylmethacrylate-styrene.    
     
     
         4 . The composition of  claim 1 , wherein the bone or dental cement further comprises a radiopacifier.  
     
     
         5 . The composition of  claim 1 , wherein the composition comprises at least 10% by weight Polymeric Rigid Inorganic Material Matrix.  
     
     
         6 . The composition of  claim 1 , wherein the composition comprises at least 20% by weight Polymeric Rigid Inorganic Material Matrix.  
     
     
         7 . The composition of  claim 1 , wherein the Polymeric Rigid Inorganic Material Matrix is added in the form of particles.  
     
     
         8 . The composition of  claim 1 , wherein the Polymeric Rigid Inorganic Material Matrix has a density of between approximately 4 and 64 lb/ft 3 .  
     
     
         9 . A method for improving a bone or dental cement composition comprising adding Polymeric Rigid Inorganic Matrix Material to a bone or dental cement composition.  
     
     
         10 . The method of  claim 9 , wherein the Polymeric Rigid Inorganic Matrix Material is added in the form of particles.  
     
     
         11 . The method of  claim 9 , wherein the Polymeric Rigid Inorganic Matrix Material has a density of between approximately 4 and 64 lb/ft 3 .  
     
     
         12 . The method of  claim 9 , further comprising adding at least 10% by weight Polymeric Rigid Inorganic Material Matrix.  
     
     
         13 . The method of  claim 9 , further comprising adding at least 20% by weight Polymeric Rigid Inorganic Material Matrix.  
     
     
         14 . A bone or dental cement treatment kit for bone or tooth repair or other treatment of a bone or tooth defect, the kit comprising: 
 a finely divided acrylic polymer;    polymerizable liquid acrylate monomers for preparation of bone or dental cement useful in bone or tooth repair or other bone or tooth treatment; and    Polymeric Rigid Inorganic Matrix Material.    
     
     
         15 . The kit of  claim 14 , wherein the polymer comprises polymethylmethacrylate.  
     
     
         16 . The kit of  claim 14 , wherein the acrylic monomers comprise methylmethacrylate-styrene-copolymer.  
     
     
         17 . The kit of  claim 14 , further comprising a radiopacifier.  
     
     
         18 . The kit of  claim 14 , wherein the Polymeric Rigid Inorganic Matrix Material is provided in the form of particles.  
     
     
         19 . The kit of  claim 14 , wherein the Polymeric Rigid Inorganic Matrix Material has a density of between approximately 4 and 64 lb/ft 3 .