BALLOON VISUALIZATION FOR TRAVERSING A TISSUE WALL
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United States of America Patent
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Issued Date -
Nov 22, 2012
app pub date -
Apr 20, 2012
filing date -
Sep 25, 2003
priority date (Note) -
Abandoned
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Abstract
Systems and methods for controllably traversing a tissue wall. In one embodiment, a distal end of a catheter is positioned and/or repositioned utilizing direct visualization out the distal end of the catheter, as facilitated by an imaging element disposed within the distal tip of the catheter. An inflatable balloon may comprise a portion of the distal tip of the catheter for structural and/or visualization media purposes. A tissue traversing element may be forwarded through a working lumen defined by the catheter and controllably pushed through a tissue wall as observed with the imaging element. The tissue traversing element may comprise sensors and the like to facilitate monitoring of changes in pressure, color, oxygen saturation, flow rate, and echo timing, to determine the position of the tissue traversing member relative to the tissue wall.
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