Medical device and method for preventing bile reflux following bariatric surgery

Abstract

An endoscopic stent for implantation in a patient following sleeve gastrectomy or biliopancreatic diversion with duodenal transposition comprises a stent portion comprising a proximal portion, the proximal portion Defined by a length of about 50 mm to about 200 mm; an enlarged intermediate portion having an enlarged diameter relative to the proximal and distal portions and defined by a length of about 20 mm to about 80 mm; and a distal portion and a polymeric sheath portion joined to and extending distally from said distal end portion of said stent.

Description

[0001] Cross References to Related Applications

[0002] This application claims priority to US Provisional Application Serial No. 62 / 017,595, filed June 26, 2014, the entire contents of which are incorporated herein by reference. technical field

[0003] The present invention relates to valve arrangements and methods for preventing bile backflow for bariatric stents. Background technique

[0004] Obesity is a medical condition in which excess body fat has accumulated to such an extent that it may adversely affect health, resulting in a shortened life expectancy and / or increased health problems. Body Mass Index (BMI) is a measure to compare weight and height, in people's BMI at 25kg / m 2 and 30kg / m 2 Between, it defines a person as overweight (pre-obesity), and at greater than 30kg / m 2 defined as obesity. Most commonly, obesity is caused by a combination of excess dietary calories, lack of physical activity, and genetic predisposition. On average, obesity reduces life e...

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