Implatable devices having a radially expandable barrier and related methods of use

A method for treating a patient, comprising:

• introducing a prosthetic device into a lumen of the patient, wherein the prosthetic device includes:
• a) a barrier extending from a proximal edge at a proximal end of the prosthetic device to a distal base defined by a resilient ring, the resilient ring being positioned distal to the proximal end of the prosthetic device, and b) a wall extending from a proximal opening defined by the resilient ring to a distal opening at a distal end of the prosthetic device, wherein the distal opening is smaller than the proximal opening;
• transforming at least a portion of the barrier from a first configuration to a second configuration radially outward relative to the first configuration to cause the barrier to contact tissue defining the lumen, wherein during the transforming the distal base of the barrier remains fixed to the resilient ring and the proximal edge of the barrier moves relative to the wall;
• and
• securing the prosthetic device to tissue defining the lumen.

A method for treating a patient, comprising:

• introducing a prosthetic device into a lumen of the patient, wherein the prosthetic device includes a barrier and a wall extending from a proximal opening adjacent the barrier to a distal opening, wherein:
• the wall defines a passage,
• the barrier extends around a circumference of the proximal opening, and
• the distal opening is smaller than the proximal opening;
• and
• transforming at least a portion of the barrier from a first configuration to a second configuration radially outward relative to the first configuration to cause the barrier to contact tissue of the lumen, wherein transforming includes allowing the barrier to pivot relative to a ring defining the proximal opening.

A method for treating a patient, comprising:

• introducing a prosthetic device into a lumen of the patient, wherein the prosthetic device includes a) a barrier secured to a resilient ring and extending proximally from the resilient ring, and b) a wall secured to the resilient ring and extending distally from the resilient ring from a proximal opening to a distal opening, wherein:
• the wall defines a passage,
• the barrier extends around a circumference of the proximal opening, and
• the distal opening is smaller than the proximal opening;
• transforming a proximal end of the barrier from a first configuration to a second configuration radially outward relative to the first configuration to cause the barrier to contact tissue of the lumen;
• and
• securing the prosthetic device to tissue of the lumen of the patient.