Patent ID: 6368327
Filing Date: 2002-04-09
Classification: A61B,B25B

Abstract:
A medical device comprisingan elongated canula assembly having a movable medical instrument assembly on a distal end thereof constructed and arranged to enter the human body to perform a specific procedure, and a moving assembly on a proximal end thereof constructed and arranged to be manually operated outside the human body to move the movable medical instrument assembly during the performance of the procedure, said medical instrument assembly comprising a plurality of cooperating medical instrument structures having proximal ends confined peripherally at a position of confinement and distal ends movable toward and away from each other, at least one of said cooperating medical instrument structures including a longitudinally stable tubular portion at the proximal confined end thereof having an open end spaced from said position of confinement, said tubular portions having a movable elongated flexure element extending therethrough having a distal end disposed outwardly of the open end of said tubular portion and fixed with respect to a cooperating medical instrument structure at a position thereon spaced from the confined proximal end thereof, said moving assembly including fixed structure having moving structure movably mounted thereon positioned and configured to be manually moved, said canula assembly including an elongated longitudinally stable transversely flexible guide structure extending between the fixed structure of said moving assembly and the proximal end of said tubular portion and an elongated flexible moving structure disposed in movably guided relation to said elongated longitudinally fixed transversely flexible guide structure connected between the movable structure of said moving assembly and said movable flexure element so that when said moving structure is manually moved in one direction the distal ends of said cooperating medical instrument structures are moved away from one another and when said moving structure is manually moved in an opposite direction the distal ends of said cooperating medical instrument structures are moved toward one another.