Endoscope shaft with superelastic alloy spiral frame and braid
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Apr 12, 2000
filing date -
Apr 12, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An endoscope having a control section and a shaft extending from the control section. The shaft comprises an outer cover; a tubular braid member located, at least partially, inside the outer cover; and a support frame located, at least partially, inside the tubular braid member. The support frame comprises a shape memory member which is spiral shaped. The shape memory member is comprised of a superelastic shape memory alloy. A first length of the support frame comprises the shape memory member having a first width and/or thickness a second length of the tubular shape comprises the shape memory member having a different second width and/or thickness such that the support frame has different respective stiffnesses along the first and second lengths.
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