Tethered coil for treatment of body lumens
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United States of America Patent
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Feb 5, 2013
Grant Date -
Jan 19, 2012
app pub date -
Sep 23, 2011
filing date -
Nov 9, 2007
priority date (Note) -
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Abstract
Disclosed is an apparatus and a method for removable of undesired material from body lumens. The apparatus may be used for fragmenting or removing a thrombus or occlusion from a blood vessel. The apparatus includes first shape segments and second shape segments connected to form a coiled member. A longitudinally extending tether is positioned inside the first shape segments and outside the second shape segments along the length of the coil. Applying a proximal force on the tether produces a change in the shape of at least a portion of the coil from a first generally linear configuration to a second complex three dimensional shape. A method of using the apparatus to engage and remove, or fragment, the thrombus or occlusion is disclosed.
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