Bioresorbable inflatable device and tunnel incision tool and method treat and increase the tissue or organ or pipe or container or cavity. The device could attach to filler by absorbable material by hollow expanding bag. The bag is filled with biocompatible materials, one or more times how many days is spaced, and is being inserted into the device. Simultaneously filling baggy fabric every several days tissue bulkings and filling whether be the beginning function of having bioactivity. The tool is to make the easy extension of shallow notch surrounding tissue, therefore to make the tissue by the surface of that tunnel incision a tiny bit blade extending tool. The device and method can be used for for example: horizontal and vertical sclerotin increases related term of making a rope by twisting the strands together with above-mentioned tunnel incision tool for manufacturing shallow incision periosteum, when use wind tunnel technique, sinus is expanded, when the device is placed on the tissue below Schneiderian, if blood vessel widens pouch and becomes stent etc..
