Stent with elongating struts

A method of making a stent, the method comprising:

• forming a plurality of rings, each ring including an alternating series of bars and hinges, each hinge configured to bend inward to allow the ring to be radially compressed from a manufactured state to a crimped state, each hinge configured to bend outward to allow the ring to radially expand from the crimped state to a deployed state;
• forming a plurality of links connecting the rings together, wherein the rings and links form a tubular scaffold having a central axis;
• and
• forming within at least one of the bars an elongation mechanism having a folded configuration when the ring is in the manufactured state,
• wherein the elongation mechanism is configured to remain in the folded configuration when the ring is in the crimped state, and the elongation mechanism configured to unfold to an unfolded configuration when the ring is in the deployed state.

A stent comprising:

• a plurality of rings, each ring including an alternating series of bars and hinges, each hinge configured to bend inward to allow the ring to be radially compressed from a manufactured state to a crimped state, each hinge configured to bend outward to allow the ring to radially expand from the crimped state to a first deployed state and further radially expand a second deployed state;
• and
• a plurality of links connecting the rings together,
• wherein the rings and links form a tubular scaffold having a central axis, and
• wherein at least one of the bars includes a plurality of pivots and fingers having a folded configuration when the ring is in a crimped state, the pivots and fingers are configured to remain in the folded configuration when the ring is radially expanded from the crimped state to the first deployed state, and are configured to unfold from the folded configuration when the ring radially expands from the first deployed state to the second deployed state.