Devices, systems, and methods for pyloric occlusion

A system for occluding a body passage or lumen, said system comprising:

• an occlusion device comprising:
• a proximal plug section having a proximal end and a distal end, and shiftable between an unexpanded configuration and an expanded configuration;
• a distal plug section having a proximal end and a distal end, and shiftable between an unexpanded configuration and an expanded configuration;
• and
• an intermediate section extending from at least the distal end of said proximal plug section to at least the proximal end of said distal plug section with the proximal plug section and the distal plug section in unexpanded configurations;
• and
• a deployment device mating with said intermediate section of said occlusion device;
• wherein:
• said deployment device is engageable with said intermediate section to move said intermediate section to cause at least one of said proximal plug section or said distal plug section to shift from an unexpanded configuration to an expanded configuration;
• said proximal plug section and said distal plug section are expandable stents facing each other and coupled together by said intermediate section;
• said proximal plug section and said distal plug section each have a closed end and an open end, wherein pulling the plug sections away from each other causes the plug sections to shift from an expanded configuration to an unexpanded configuration;
• said intermediate section has a mating section at a proximal end thereof configured for engagement with a distal mating section of said deployment device;
• and
• proximal movement of said deployment device when engaged with said intermediate section pulls on a closed end of at least one of said proximal plug section and said distal plug section to shift said at least one of said proximal plug section and said distal plug section from an expanded configuration to an unexpanded configuration.

A method of occluding a body passage or lumen, said method comprising:

• positioning, at a deployment site, an occlusion device in an unexpanded configuration, the occlusion device comprising a proximal plug section and a distal plug section with an intermediate section extending from at least a distal end of the proximal plug section to at least a proximal end of the distal plug section;
• and
• manipulating the intermediate section to cause at least one of the proximal plug section or the distal plug section to shift from an unexpanded configuration to an expanded configuration;
• wherein:
• the proximal plug section and the distal plug section are expandable stents facing each other and coupled together by the intermediate section;
• the proximal plug section and the distal plug section each have a closed end and an open end, wherein pulling the plug sections away from each other causes the plug sections to shift from an expanded configuration to an unexpanded configuration;
• the intermediate section is coupled with a closed end of at least one of the proximal plug section and the distal plug section;
• and
• said method further comprises pulling proximally on the intermediate section to cause the at least one of the proximal plug section and the distal plug section to shift from an expanded configuration to an unexpanded configuration.