Method for forming a stent in situ

A method for forming a stent within a body lumen comprising:

• advancing a distal catheter body within a body lumen to a section of the body lumen at which a stent is to be formed;
• expanding one or more expandable members attached to the distal catheter body such that sections of the body lumen proximal and distal to the stent formation section of the body lumen are occluded, the distal catheter body in combination with the body lumen defining a mold space;
• delivering a fluent pre-stent composition within the mold space from outside the body lumen such that the pre-stent composition is continuously in fluent state during pre-stent composition delivery from outside the body lumen to the mold space;
• and
• delivering microwave energy within the mold space to accelerate the transformation transforming the fluent pre-stent composition to a non-fluent stent composition to form a stent within the mold space.

A method for forming a fenestrated stent within a body lumen comprising:

• advancing a distal catheter body within a body lumen to a section of the body lumen at which a stent is to be formed;
• expanding one or more expandable members attached to the distal catheter body such that sections of the body lumen proximal and distal to the stent formation section of the body lumen are occluded, the distal catheter body in combination with the body lumen defining a mold space, the distal catheter body including one or more members extending from the distal catheter body which define a fenestration pattern within the mold space;
• delivering a fluent pre-stent composition within the mold space from outside the body lumen such that the pre-stent composition is continuously in fluent state during pre-stent composition delivery from outside the body lumen to the mold space;
• and
• transforming the fluent pre-stent composition to a non-fluent stent composition to form a fenestrated stent within the mold space.

A method for forming a fenestrated stent within a body lumen comprising:

• advancing a distal catheter body within a body lumen to a section of the body lumen at which a stent is to be formed;
• expanding one or more expandable members attached to the distal catheter body such that sections of the body lumen proximal and distal to the stent formation section of the body lumen are occluded, the distal catheter body in combination with the body lumen defining a mold space, the distal catheter body including one or more detachable members extending from the distal catheter body which define a fenestration pattern within the mold space;
• delivering a fluent pre-stent composition within the mold space from outside the body lumen such that the pre-stent composition is continuously in fluent state during pre-stent composition delivery from outside the body lumen to the mold space;
• transforming the fluent pre-stent composition to a non-fluent stent composition to form a fenestrated stent within the mold space;
• and
• detaching the one or more fenestration pattern defining members from the distal catheter body.