Self-expanding defect closure device and method of making and using
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United States of America Patent
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Jan 9, 2001
Grant Date -
N/A
app pub date -
Aug 28, 1998
filing date -
Dec 19, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a self-expanding device for sealing a defect in a wall, such as a septal defect. The device of the present invention has a helical shaped periphery formed from an elastic wire and at least one eyelet. The eyelet has a non-circular ('asymmetric') shape which allows the eyelet to slide along a guiding mandrel. The non-circular shaped eyelet and mandrel prevent rotation of the eyelet relative to the mandrel thereby ensuring a consistent deployed shape. The present invention also incorporates a self-articulating catheter tip which can be bent to a variety of angles to enhance the ease of delivery. The tip is articulated by varying the position of the closure device within the articulated portion of the catheter.
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