Patent ID: 7468072

Claim:
An inflatable graft for placement through tortuous, narrow or stenotic cerebral blood vessels comprising: a. a first outer wall of non-compliant material having a proximal end and a distal end; b. a second inner wall of non-compliant material having a smaller diameter than the first outer wall and having a proximal end and a distal end; c. a fluid tight seal of the first outer wall and the second inner wall at the distal and proximal ends; d. at least one or more fused junctures of the first and second wall, each non-inflatable fused juncture forming a circumference with a fixed diameter around the graft and not subject to inflation pressure wherein the graft can bend without kinking or distortion and that create fluid tight seals and fluid communicating passages to each resulting multiple fluid chambers between the said first and said second wall and the said multiple fused junctures; e. a valve to convey fluid into the interstitial space to inflate the graft to a pre-selected shape without distortion and create a smooth inner wall lumen; f. a plurality of radially oriented separate and narrow non-distorting web support attached to the second inner wall and first outer wall within one or more non-compliant fluid chambers and further comprising tapered web support proximate to the fused junctures and causing the outer wall to taper to the fused juncture and form an acute angle to the cerebral blood vessel wall to dissipate dragging forces of flowing blood through the graft displacing the graft and to provide sites for neointimal growth; and g. the inflated first outer wall dimensioned to conform to the shape of the said cerebral blood vessel.