. . . "It should also be understood that the various aspects of the present invention disclosed herein can easily be adapted to all types of procedures where a needle may be used, including, but not limited to, neurological, urological, central venous, oximetry, thermodilution, PTCA, PTA, angiography, atherectomy, electrophysiology, suction and wound drainage, cardiovascular, pulmonary and spinal cathete" .