Pressure-propelled system for body lumen
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United States of America Patent
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Apr 16, 2013
Grant Date -
Sep 8, 2011
app pub date -
May 19, 2011
filing date -
Jan 9, 2004
priority date (Note) -
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Abstract
An apparatus for use with a biologically-compatible-fluid pressure source, the apparatus includes an elongate carrier, adapted to be inserted through a proximal opening of a body lumen, and a piston head coupled to a distal portion of the carrier. The piston head is adapted to form a pressure seal with a wall of the lumen after the carrier has been inserted into the lumen, and to be advanced distally through the body lumen in response to pressure from the fluid pressure source. The apparatus is configured to facilitate distal advancement of the piston head by facilitating passage of fluid out of the lumen from a site within the lumen distal to the piston head.
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