the human lumen not shown the graft is deployed by injecting a fluid or gel material of contrast media monomer or uncrossed polymer through a pressure monitoring inflation device attached to the proximal end of the small lumen of the delivery catheter which gradually fills the small catheter lumen 21 and flows across the detachable valve into the chambers of the graft in a successive fashion 22 the fluid may be a curable polymer resin system as the chambers of the graft fill gradually the graft starts to unfold 23 and expand 25 in a radial fashion outward after the graft expands to its predetermined shape and size 26 a slight increase in the amount of the injected material will lead to increased pressure inside the graft and exert a sufficient radial force outward thus becoming axially and sealingly fixed to the inside of the blood vessel the graft can then be detached from the delivery catheter 27 through the detachable valve leaving the graft fully expanded and pressurized this graft design functions as a covert stent graft for treating diseases such as atherosclerosis and aneurysms this specification is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the manner of carrying out the invention it is to be understood that the forms of the invention herein shown and describe are to be taken as the presently preferred embodiments as already stated various changes.