Patent ID: 8690817

Claim:
A system for bypassing an anastomosis site in a colon, the system comprising: (a) a band, configured for positioning around an external surface region of the colon; (b) a tubular sleeve having a portion configured for spanning the anastomosis site at an internal surface of the colon, said tubular sleeve including a first tubular region extending to a contiguous second tubular region, said first tubular region including an expandable structure having: (i) a diameter, when expanded, greater than a diameter of said contiguous second tubular region; (ii) at least three balloons, wherein a first, proximal-most balloon is configured to cooperate with the band in a manner limiting movement of the tubular sleeve in a downstream direction of the colon and enabling migration of the tubular sleeve in an upstream direction in the colon, and wherein a second intermediate balloon and a third distal-most balloon are configured to stabilize the tubular sleeve within the colon when the second and third balloon are inflated; and (iii) a distance from a proximal edge of the first balloon to a distal edge of the third balloon is greater than the diameter of the first tubular region, when expanded.