Kit for treating bony defects

Abstract

The present invention is a kit and a method of using a kit for treating bone including a fill material mixture made of osteoconductive material, osteoinductive material and a lubricating carrier, a porous container to receive the fill material mixture and a tool that flowably introduces the fill material mixture into the porous container.

1 . A kit for treating bone comprising: 
 a fill material mixture including osteoconductive material, osteoinductive material and a lubricating carrier, the osteoconductive material having a particle size X, the osteoinductive material having a particle size about 0.3X-0.7X;    a porous container to receive the fill material mixture, the container having pore sizes about 0.5X-2.5X;    a tool that flowably introduces the fill material mixture into the porous container at sustained or intermittent pressures of at least 300 psi such that the fill material mixture is packed into the container;    and a halo layer of osteoinductive material at least 1 mm forms around at least a portion of an exterior surface of the porous container.    
     
     
         2 . The device of  claim 1  wherein the ratio of the fill material mixture is about 1 part osteoinductive material to 2 parts osteoconductive material to 2 parts lubricating carrier;  
     
     
         3 . The device of  claim 1  wherein the osteoinductive material is demineralized bone material.  
     
     
         4 . The device of  claim 1  wherein the osteoconductive material is selected from the group consisting of: cortical cancellous allograft, cortical cancellous autograft, cortico cancellous xenograft, hydroxyapatite, tricalcium phosphate, calcium sulfate, calcium carbonates and any combination thereof.  
     
     
         5 . The device of  claim 1  wherein the mixture is selected from a group consisting of: demineralized bone material, morselized bone graft, cortical cancellous allograft, cortical cancellous autograft, cortical cancellous xenograft, hydroxyapatite, tricalcium phosphate, calcium sulfate, calcium carbonates and any combination thereof.  
     
     
         6 . A method of treating bone comprising the steps of: 
 inserting a porous container into a bony defect;    introducing the fill material mixture into the porous container at a pressure of at least 300 psi such that the fill material mixture is packed into the container forming a halo layer of osteoinductive material at least 1 mm around at least a portion of an exterior surface of the porous container.    
     
     
         7 . The method of  claim 6  wherein the ratio of the fill material mixture is about 1 part osteoinductive material to 2 parts osteoconductive material to 2 parts lubricating carrier;  
     
     
         8 . The method of  claim 6  wherein the particle size of the osteoconductive material is X, the particle size of the osteoinductive material is about 0.3X-0.7X and the container pore sizes are about 0.5X-2.5X.  
     
     
         9 . The method of  claim 6  wherein the osteoinductive material is demineralized bone material.  
     
     
         10 . The method of  claim 6  wherein the osteoconductive material is selected from the group consisting of: cortical cancellous allograft, cortical cancellous autograft, cortico cancellous xenograft, hydroxyapatite, tricalcium phosphate, calcium sulfate, calcium carbonates and any combination thereof.  
     
     
         11 . The method of  claim 6  wherein the mixture is selected from a group consisting of: demineralized bone material, morselized bone graft, cortical cancellous allograft, cortical cancellous autograft, cortical cancellous xenograft, hydroxyapatite, tricalcium phosphate, calcium sulfate, calcium carbonates and any combination thereof.