Devices for Tissue Augmentation

Abstract

Devices, method to produce devices and methods to perform bone augmentation using a bag having two membranes on one side and one membrane on the other side which is preferably perforated. The bag can be filled with bone augmenting material. The bag can be used in the jaws while placing the side with the one membrane towards the jaw bone and the side with the two membranes towards the gingiva.

What is claimed is: 
     
         1 . A method for treating patients in need for bone regeneration in the lower jawbone comprising:
 a. detaching a lingual periosteal tissue from a lingual surface of said lower jawbone to form a lingual opening between said lingual periosteal tissue and said lingual surface of said lower jawbone;   b. forming a subperiosteal tunnel through said lingual opening, said subperiosteal tunnel extends from said lingual opening along a segment of said lower jawbone and a segment of a periosteal tissue;   c. inserting through said lingual opening a bag inside said subperiosteal tunnel, said bag has a perforated region having holes which are larger than 30 microns, said bag has a soft tissue blocking region in which holes which are larger than 20 microns are absent, said bag contains a bone augmenting material, said perforated region of said bag being placed towards at least part of said segment of said lower jawbone, said soft tissue blocking region being placed towards at least part of said segment of said periosteal tissue;   d. closing said lingual opening and leaving said bag adjacent said segment of said lower jawbone for at least several days to allow bone tissue ingrowth through said holes inside said bag.   
     
     
         2 . The method of  claim 1 , wherein said segment of said periosteal tissue being located distally to said lingual opening. 
     
     
         3 . The method of  claim 1 , wherein an additional bone augmenting being inserted inside said subperiosteal tunnel between said bag and said segment of said lower jawbone. 
     
     
         4 . The method of  claim 1 , wherein an opening to said subperiosteal tunnel is being formed also at a buccal aspect of said lower jawbone. 
     
     
         5 . The method of  claim 1 , wherein said subperiosteal tunnel is extended to an occlusal aspect of said segment of said lower jawbone, said bag being placed along said occlusal aspect of said segment of said lower jawbone. 
     
     
         6 . The method of  claim 1 , wherein said subperiosteal tunnel is extended to a buccal aspect of said segment of said lower jawbone, said bag being placed along said buccal aspect of said segment of said lower jawbone. 
     
     
         7 . The method of  claim 1 , wherein said bag being fixated to said lower jawbone using a bone tack. 
     
     
         8 . The method of  claim 1 , wherein said bag being fixated to said periosteal tissue using a suture. 
     
     
         9 . The method of  claim 1 , wherein said bag being filled using a syringe having said bone augmenting material. 
     
     
         10 . The method of  claim 1 , wherein said perforated region has more than 10 holes. 
     
     
         11 . The method of  claim 1 , wherein said holes having diameter of 800 microns-2500 microns. 
     
     
         12 . The method of  claim 1 , wherein holes which are larger than 10 microns are absent from said soft tissue blocking region. 
     
     
         13 . The method of  claim 1 , wherein at least part of said soft tissue blocking region is made from a guided regeneration membrane. 
     
     
         14 . The method of  claim 1 , wherein at least part said soft tissue blocking region has a first sheet and a second sheet above said first sheet. 
     
     
         15 . The method of  claim 14 , wherein said first sheet is connected to said second sheet by sutures. 
     
     
         16 . The method of  claim 15 , wherein said perforated region includes an edge closing extension, said edge closing extension being placed between said first sheet and said second sheet to form said bag. 
     
     
         17 . The method of  claim 1 , wherein one edge of said perforated region being connected to said soft tissue blocking region to form said bag having a filling opening adjacent the opposite edge of said perforated region. 
     
     
         18 . The method of  claim 1 , wherein said perforated region includes an edge closing extension, said edge closing extension being placed above at least part of said holes in said perforated region to form said bag. 
     
     
         19 . The method of  claim 1 , wherein said bone augmenting material includes a particulated bone augmenting material, the diameter of the particles of said bone augmenting material are larger than the diameter of said holes in said perforated region. 
     
     
         20 . The method of  claim 1 , wherein said bone augmenting material includes a particulated bone augmenting material, the diameter of the particles of said bone augmenting material are smaller than the diameter of said holes in said perforated region and said particles are in a flowable material.