Patent ID: 6585694
Filing Date: 2003-07-01
Classification: A61B,A61M

Abstract:
A needle injection device having a longitudinal axis, said device for injecting an injectate into tissue, comprising:a) a flexible conduit having at least one lumen and proximal and distal ends; b) a flexible sheath having proximal and distal ends and extending over and longitudinally movable relative to said conduit; c) a needle coupled to said distal end of said conduit and having a bore in fluid communication with said at least one lumen of said conduit; d) a longitudinally stiff element having proximal and distal ends and extending through said at least one lumen of said conduit, said distal end of said longitudinally stiff element coupled to at least one of said needle and said distal end of said conduit; and e) a handle assembly including, i) a stationary member coupled to said proximal end of said sheath, ii) a movable member coupled said proximal ends of longitudinally stiff element and said conduit, said movable member including a port adapted to receive an injectate, and a passageway, wherein said port, said passageway, and said at least one lumen are in fluid communication, and iii) actuation means for non-rotationally reciprocating said movable member relative to said stationary member such that said distal ends of said longitudinally stiff element and said conduit are moved longitudinally relative to said distal end of said sheath, wherein said actuation means is adapted to reciprocate said movable member relative to said stationary member upon receiving a rotational input, said actuation means includes a shaft rotatably coupled to said stationary member, said shaft including a manually operable control knob rotatable about an axis perpendicular to said longitudinal axis of said device, and said movable member is provided with means for engaging said shaft such that rotation of said shaft causes said movable member to reciprocate relative to said stationary member.