Systems and methods for treatment of obesity and type 2 diabetes

A device for treating a patient for obesity and/or type II diabetes comprising:

• a hollow sleeve having open proximal and distal ends and being sized and shaped for positioning within a duodenum of the patient;
• and
• an expandable element coupled to the proximal end of the sleeve and having proximal and distal end portions, the proximal end portion having a diameter in an expanded configuration larger than a maximally dilated size of a human pylorus and the distal end portion having a diameter in the expanded configuration smaller than the proximal end portion, wherein the expandable element comprises an internal tube and a rib element housed within an interior of the expandable element to provide rigidity to the internal tube.

A device for treating a patient for obesity and/or type II diabetes comprising:

• a duodenal anchor sized and shaped for residing in a proximal portion of a duodenum of the patient, the anchor being configured to exert a radially directed force against the inner walls of the proximal portion of the duodenum, wherein the duodenal anchor comprises a support member haying open proximal and distal ends and a biasing member coupled to the support member and exerting an outwardly directed force against the support member, the biasing member further comprising an annular rib enclosed within the support member;
• and
• a flexible tube member coupled to the duodenal anchor and configured for extending through at least a portion of the duodenum of the patient.