Shape lockable apparatus and method for advancing an instrument through unsupported anatomy
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United States of America Patent
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Sep 14, 2004
Grant Date -
Dec 18, 2003
app pub date -
Jun 13, 2002
filing date -
Jun 13, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Apparatus and methods are provided for placing and advancing a diagnostic or therapeutic instrument in a hollow body organ of a tortuous or unsupported anatomy, comprising a handle, an overtube, a distal region having an atraumatic tip. The overtube may be removable from the handle, and have a longitudinal axis disposed at an angle relative to the handle. The overtube may be selectively stiffened to reduce distension of the organ caused by advancement of the diagnostic or therapeutic instrument. The distal region permits passive steering of the overtube caused by deflection of the diagnostic or therapeutic instrument while the atraumatic tip prevents the wall of the organ from becoming caught or pinched during manipulation of the diagnostic or therapeutic instrument.
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