A tether guided bifurcated stent having a generally tubular main body (11) extending along a longitudinal axis connected to a side branch assembly (10) . Both the main stent body and the side branch assembly are capable of forming an unexpanded configuration and an expanded configuration. The bifurcation's expansion is facilitated by a force exerted by the tether (4) . When the side branch assembly is expanded it forms a secondary tubular region defining a generally tubular shape extending at an angle to the longitudinal axis of the main tubular body.
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