Abstract: A surgical retractor and wire passer broadly comprising an elongated handle, a paddle, a curved tip, and a guide passageway. The elongated handle allows a user to grasp and apply leverage to the surgical retractor and wire passer. The paddle extends from the elongated handle and is a thin and flat plate for holding back non-skeletal tissue away from an operating area. The curved tip extends from the paddle opposite the handle and includes a concave engagement surface for engaging the bone. The guide passageway extends along the curved tip and curls a surgical wire at least partially around the bone.

Abstract: Devices and methods for gastrointestinal bypass are described. A gastrointestinal bypass device includes a gastrointestinal cuff and a gastrointestinal sleeve. The cuff may be configured to be attached in the esophagus, and may be sufficiently flexible to expand and collapse to conform with the inside of the esophagus to allow the esophagus to function substantially normally. The sleeve is configured to be coupled to the cuff, and may be made of a material that is floppy or flaccid but does not substantially expand radially.

Abstract: Devices and methods for gastrointestinal bypass are described. A gastrointestinal bypass device includes a gastrointestinal cuff and a gastrointestinal sleeve. The cuff may be configured to be attached in the esophagus, and may be sufficiently flexible to expand and collapse to conform with the inside of the esophagus to allow the esophagus to function substantially normally. The sleeve is configured to be coupled to the cuff, and may be made of a material that is floppy or flaccid but does not substantially expand radially.