Pyloric valve devices and methods
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United States of America Patent
Stats
-
Nov 12, 2013
Grant Date -
May 31, 2012
app pub date -
Feb 1, 2012
filing date -
Apr 9, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pyloric valve is provided for inhibiting the flow of chyme through the pyloric region of the gastrointestinal tract. The pyloric valve includes a blocking portion having a disc-shaped inlet and a helical flange. The helical flange may be disposed in a contracted position defining a contracted length and a contracted diameter and an extended position defining an extended length and an extended diameter, wherein the extended length is longer than the contracted length and the extended diameter is smaller than the contracted diameter. The pyloric valve may further include a sleeve that may have a beveled distal end. The pyloric valve may be constructed of silicon. Also provided are methods of inserting and removing the pyloric valve, which each include a step of manipulating the support between its contracted and extended positions. Insertion and removal systems are also provided for use with the pyloric valve.
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