Roxanne Richman;David A. Gallup;Annette Campbell-White;Daniel Rogers Burnett;Gregory W. Hall
发明人:
Daniel Rogers Burnett,Gregory W. Hall,Roxanne Richman,David A. Gallup,Annette Campbell-White
申请号：
US12351705
公开号：
US08657885B2
申请日:
2009.01.09
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Methods, devices and systems facilitate intermittent and/or partial obstruction of a pyloric valve. Devices generally include a support portion for preventing the device from passing through the pyloric valve and a tissue engagement portion for contacting tissue adjacent the pyloric valve to obstruct the valve. Some embodiments also include a positioning member extending from the tissue engagement portion for helping position the device for obstructing the valve. A retaining member may optionally be included on the distal end of the positioning member for further maintaining a position of the device in the stomach. Some embodiments are deliverable into the stomach through the esophagus, either by swallowing or through a delivery tube or catheter. Some embodiments are fully reversible. Some embodiments self-expand within the stomach, while others are inflated or otherwise expanded.
