Anastomosis Devices

摘要

Implantable medical devices for connecting tissue layers, such as for connecting a gallbladder and a portion of a gastrointestinal tract to create an anastomosis, include a tubular structure having a plurality of apposition portions, a central region, and a covering material. The methods of using the devices include endoscopic deployment, and the devices may include self-expanding frameworks that facilitate a secure connection between the tissue structures.

主权项

1. A medical device comprising:
an expandable frame having a first end, a second end, and a middle portion between said first end and said second end; a first apposition portion comprising a plurality of first apposition members, each of said first apposition members extending toward said middle portion, a first portion of each said first apposition members being oriented at a first angle in relation to a surface of said middle portion, a second portion of each said first apposition member being oriented at a second angle in relation to said surface of said middle portion, wherein said first angle is acute and is less than said second angle; and a second apposition portion comprising a plurality of second apposition members, each of said second apposition member extending toward said middle portion, a first portion of each said first apposition members being oriented at a third angle in relation to said surface of said middle portion, a second portion of each said second apposition members being oriented at a fourth angle in relation to said surface of said middle portion, wherein said third angle is acute and is less than said fourth angle.