An intragastric weight-loss device is disclosed. The device includes a proximal occlusion member comprising a spiral structure, a bridging member, and a distal occlusion member. The spiral structure can be configured to spiral into a bulbous shape when the proximal occlusion member is delivered into the stomach. The bridging member can extend from the proximal occlusion member. The distal occlusion member can be coupled to a distal end of the bridging member. The proximal occlusion member can be configured to intermittently obstruct a pyloric valve of a patient such that passage of food through the pyloric valve is slowed.
