Pressure-propelled system for body lumen
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United States of America Patent
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Nov 16, 2010
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app pub date -
Jan 9, 2004
filing date -
Aug 13, 2003
priority date (Note) -
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Abstract
A system including a guide member at least partially insertable into a proximal opening of a body lumen, the guide member including a first passageway connectable to a source of fluid pressure, an elongate carrier arranged for sliding movement through the guide member, and a piston head mounted on the carrier, wherein a greater fluid pressure acting on a proximal side of the piston head than on a distal side of the piston head propels the piston head and the carrier in a distal direction in the body lumen.
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