Modular stent device for multiple vessels and method

An assembly comprising:

• a modular stent device comprising:
• a main body having a proximal end and a distal end, the distal end of the main body having a circular profile;
• a bypass gate having a proximal end and a distal end, the proximal end of the bypass gate having a circular profile, the bypass gate continuously extending distally from the distal end of the main body;
• an artery leg having a proximal end and a distal end, the proximal end of the artery leg having a circular profile, the artery leg having an artery leg diameter extending from the proximal end to the distal end of the artery leg, the artery leg extending distally from the distal end of the main body;
• and
• a transition region where the main body meets the bypass gate and the artery leg to form a first transition region surface and a second transition region surface spaced apart from the first transition region surface, the first transition region surface bounded by a first portion of the circular profile of the distal end of the main body, a first portion of the circular profile of the proximal end of the bypass gate, and a first portion of the circular profile of the proximal end of the artery leg, the second transition region surface bounded by a second portion of the circular profile of the distal end of the main body, a second portion of the circular profile of the proximal end of the bypass gate, and a second portion of the circular profile of the proximal end of the artery leg, the first portions of the circular profiles of the distal end of the main body and the proximal ends of the bypass gate and the artery leg are different than the second portions of the circular profiles of the distal end of the main body and the proximal ends of the bypass gate and the artery leg,
• wherein the modular stent device continuously extends distally from the proximal end of the main body to the distal end of the bypass gate or the artery leg,
• wherein the artery leg has a greater radial force than a radial force of the bypass gate,
• wherein the main body has a first longitudinal axis, the bypass gate has a second longitudinal axis, and the artery leg has a third longitudinal axis, the first, second, and third longitudinal axes are parallel with one another when the modular stent device is in a relaxed configuration,
• wherein a length of the artery leg is less than a length of the bypass gate.

An assembly comprising:

• a modular stent device comprising:
• a main body having a proximal end and a distal end;
• a bypass gate having a proximal end and a distal end, the bypass gate continuously extending distally from the distal end of the main body to the distal end of the bypass gate without bifurcation, the bypass gate having a bypass gate diameter;
• and
• an artery leg having a proximal end and a distal end, the artery leg continuously extending distally from the distal end of the main body to the distal end of the artery leg without bifurcation, the artery leg having an artery leg diameter;
• and
• a transition region where the main body meets the bypass gate and the artery leg to form a closed transition region surface bounded by a bounding portion of the distal end of the main body, and the proximal ends of the bypass gate, and the artery leg, the bounding portion includes a main body/bypass gate contacting region where the distal end of the main body contacts the proximal end of the bypass gate, a bypass gate/artery leg contacting region where the proximal end of the bypass gate contacts the proximal end of the artery leg, and an artery leg/main body contacting region where the proximal end of the artery leg contacts the distal end of the main body, the main body/bypass gate, bypass gate/artery leg, and artery leg/main body contacting regions radially align,
• wherein the artery leg has a greater radial force than a radial force of the bypass gate,
• wherein the main body has a first longitudinal axis, the bypass gate has a second longitudinal axis, and the artery leg has a third longitudinal axis, the first, second, and third longitudinal axes are parallel with one another when the modular stent device is in a relaxed configuration,
• wherein a length of the artery leg is less than a length of the bypass gate.