Method and apparatus for tissue sampling
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United States of America Patent
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May 3, 2016
Grant Date -
Nov 4, 2010
app pub date -
Nov 20, 2008
filing date -
Nov 20, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A tissue sampling device includes a sheath having an inner surface having a proximal end and a distal end, and an inner surface defining a passage. An inner tube is disposed within the passage. The inner tube has an inner surface defining a passage, and an outer surface radially spaced outward from the inner surface. A cutting needle is pivotally mounted to the inner tube and pivots between a first position radially inward of the inner surface of the sheath and a second position substantially radially outward of the outer surface of the inner tube. Relative movement between the inner tube and the sheath causes the cutting needle to move between the first position and the second position. Rotation of the inner tube relative to the sheath when the cutting needle is in the second position causes the cutting needle to remove tissue in a helical path.
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