Flexible endoscope insertion shaft
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United States of America Patent
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-
N/A
Issued Date -
Dec 4, 2003
app pub date -
Apr 2, 2003
filing date -
May 23, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
These and other objects of the present invention are achieved by provision of a flexible endoscope insertion shaft having a hollow inner shaft portion formed from a superelastic metal alloy. The hollow inner shaft portion includes a plurality of longitudinally and radially spaced apart holes passing through a wall thereof. Flexibility properties of the insertion shaft are variable without varying the thickness of or the composition of the wall of the hollow inner shaft portion by varying a number of, size of, and/or relative position of the plurality of holes. A polymeric coating coats a surface of the hollow inner shaft portion.
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