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US 5,490,819 AGranted
Articulating endoscopic surgical apparatus
AssigneeUnited States Surgical Corporation
InventorsDavid A. Nicholas, Brian G. Russell, Boris Zvenyatsky, Paul A. Matula, Stanley H. Remiszewski
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Abstract
A surgical instrument is provided for use in endoscopic or laparoscopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end of the endoscopic portion, and a retractor assembly operatively associated with the articulating section. Structure is provided for progressively manipulating the articulating section of the instrument relative to the longitudinal axis of the endoscopic portion within an angular sector of rotation.
Claims33
A surgical apparatus comprising:
- a) a handle portion defining a first longitudinal axis;
- b) a tubular body extending from said handle portion including an elongated portion having a second longitudinal axis extending therethrough in axial alignment with said first longitudinal axis, and a distal portion articulatable relative to said second longitudinal axis of said elongated portion;
- c) a retractor assembly operatively associated with said distal portion and including a plurality of interleaved retractor blades;
- d) means including an elongated rod member associated with said handle portion and disposed at least partially within said tubular body for moving said plurality of retractor blades between an open position and a closed position, one of said plurality of interleaved retractor blades mounted to a distal end portion of said elongated rod member;
- and
- e) means associated with said handle portion and said tubular body for progressively articulating said distal portion.
3 more elements
A surgical apparatus comprising:
- a) a handle portion;
- b) a tubular body including an elongated proximal portion defining a longitudinal axis extending from said handle portion and a distal portion articulatable relative to said longitudinal axis of said proximal portion;
- c) a retractor assembly operatively associated with said distal portion and including a plurality of interleaved retractor blades;
- d) rotation means associated with said handle portion and said tubular body for remotely moving said plurality of retractor blades between an open position and a closed position;
- and
- e) a rotatable drive screw assembly mounted for longitudinal movement relative to said handle portion and said tubular body for progressively articulating said distal portion.
3 more elements
A surgical apparatus comprising:
- a) an axial handle portion defining a first longitudinal axis;
- b) a tubular body including an elongated proximal portion defining a second longitudinal axis in axial alignment with said first longitudinal axis and extending distally from said handle portion, and a distal portion articulatable relative to said second longitudinal axis of said proximal portion;
- c) a retractor assembly operatively associated with said distal portion and including a plurality of interleaved retractor blades, each of said plurality of interleaved retractor blades having a length distinct from that of an adjacent retractor blade;
- d) axially rotatable rotation means associated with said axial handle portion and said tubular body for remotely moving said plurality of interleaved retractor blades between an open position and a closed position;
- and
- e) axially rotatable rotation means associated with said axial handle portion and said tubular body for progressively articulating said distal portion.
3 more elements
A surgical apparatus comprising:
- a) a handle portion;
- b) a tubular body including an elongated proximal portion defining a longitudinal axis extending from said handle portion and a distal portion articulatable relative to said longitudinal axis of said proximal portion;
- c) a retractor assembly operatively associated with said distal portion of the tubular body and including a plurality of interleaved retractor blades;
- d) a first axial drive screw assembly associated with said handle portion;
- e) an elongated control member extending from the first axial drive screw assembly to the retractor assembly for remotely moving said plurality of retractor blades between an open and closed position;
- f) a second axial drive screw assembly operatively associated with said handle portion;
- and
- g) an elongated actuation member extending from said second axial drive screw assembly to said distal portion of said tubular body for progressively articulating said distal portion relative to said proximal portion.
5 more elements
Dependencies are inferred from the claim text.