Method and apparatus for imparting curves in elongated implantable medical instruments
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United States of America Patent
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-
Nov 23, 2004
Grant Date -
Feb 27, 2003
app pub date -
Aug 21, 2001
filing date -
Aug 21, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A medical instrument including a body extending between proximal and distal ends and enclosing an elongated, inelastic, pull wire extending between a pull wire proximal end affixed at a point at or near the proximal end and a pull wire distal end affixed at or near the distal end. The wire extends through a lumen off-set from the instrument axis and through a distal segment of the body that is to be curved for deflection at the distal end. A proximal segment of the instrument axially stretches when tension is applied to increase the length of the proximal segment from a relaxed length. A hand-held tool engages the proximal and distal ends of the proximal segment and manually applies a selective amount of tension that stretches the proximal segment from its relaxed length.
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