Preferred aspects of the invention include: covering the entire flexible coil with the sheath, locating the indicator approximately eight to ten inches from the distal end of the instrument, applying {TAIL ~ the tactile indicator} by hot stamping the sheath and applying the visual indicator with {HEAD ~ pigment bearing polymeric based tape} 
Preferred aspects of the invention include : covering the entire flexible coil with the sheath , locating the indicator approximately eight to ten inches from the distal end of the instrument , applying { TAIL ~ the tactile indicator } by hot stamping the sheath and applying the visual indicator with { HEAD ~ pigment bearing polymeric based tape }
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