Patent ID: 7608114
Filing Date: 2009-10-27
Classification: A61B,A61F

Abstract:
1. A gastrointestinal implant device comprising: a floppy sleeve, open at both ends, and adapted to extend within the intestine, the sleeve being unsupported at a distal end, and being at least one foot in length, the sleeve being noncompliant and having a coefficient of friction less than about 0.2, the sleeve having a wall thickness of less than 0.001 inches and being conformable to collapse in the intestine to a small volume; a collapsible sleeve anchor coupled to a proximal portion of the sleeve and adapted to anchor the sleeve-at or distal to the pylorus, in the intestine; and barbs extending from the collapsible sleeve anchor, the barbs being at the proximal end of the anchor, the barbs being bi-directional and having two tines directed in opposite directions from each other and outwardly from the anchor, of which one tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a first direction and another tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a second direction substantially opposite to the first direction.