Surgical stapling device
First Claim
1. A surgical stapling device comprising:
- a handle portion including a handle body and a drive mechanism including a barrel assembly having a barrel assembly body portion, a firing pawl, a retraction pawl, and a grasper pawl, the handle body including at least one elongated rib, the drive mechanism being configured and dimensioned to selectively engage a firing rack and a retraction rack;
a trigger operatively connected to the handle portion;
an elongated body portion secured to the handle portion, the elongated body portion having proximal and distal ends and extending distally from the handle; and
a tool assembly pivotably connected to the elongated body portion and configured to grasp tissue wherein grasping, firing, and retraction is accomplished by operation of the trigger.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes. The handle portion includes a spindle and barrel assembly drive mechanism for advancing and retracting a drive member positioned in the tool assembly. In one embodiment, the tool assembly includes a cartridge assembly having a plurality of staples and an anvil assembly.
1289 Citations
30 Claims
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1. A surgical stapling device comprising:
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a handle portion including a handle body and a drive mechanism including a barrel assembly having a barrel assembly body portion, a firing pawl, a retraction pawl, and a grasper pawl, the handle body including at least one elongated rib, the drive mechanism being configured and dimensioned to selectively engage a firing rack and a retraction rack; a trigger operatively connected to the handle portion; an elongated body portion secured to the handle portion, the elongated body portion having proximal and distal ends and extending distally from the handle; and a tool assembly pivotably connected to the elongated body portion and configured to grasp tissue wherein grasping, firing, and retraction is accomplished by operation of the trigger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A surgical stapling device comprising:
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a handle portion including a handle body and a drive mechanism including a barrel assembly having a barrel assembly body portion, a firing pawl, a retraction pawl, and a grasper pawl, the handle body including at least on elongated rib, the drive mechanism being configured and dimensioned to selectively engage a firing rack and a retraction rack, the retraction rack including a first surface with a first gear teeth engagable with the retraction pawl and a second surface with a second set of gear teeth, the barrel assembly including a shift ring assembly slidably positioned about the barrel assembly body portion, the shift ring assembly including; a first shift ring assembly slidably positioned about the barrel assembly body portion, the first shift ring assembly including an outer ring and an inner ring, the outer ring and the inner ring each being adapted to transition from an advanced position to a retracted position, the outer ring and the inner ring being operatively connected such that the inner ring may transition from an advanced position to a retracted position as the outer ring transition from the advance position to the retracted position; and a second shift ring assembly slidably positioned about the barrel assembly body portion, the second shift ring assembly including an outer ring and an inner ring, the outer ring and the inner ring each being adapted to transition from an advanced position to a retracted position, the outer ring and the inner ring being operatively connected such that the inner ring may transition from an advanced position to a retracted position as the outer ring transitions from the advanced position to the retracted position; a biasing member, wherein the retraction pawl is configured to be urged into operative engagement with the retraction rack by the biasing member; a trigger operatively connected to the handle portion; an elongated body portion secured to the handle portion, the elongated body portion having proximal and distal ends and extending distally from the handle; and a tool assembly pivotably connected to the pivot member and configured to grasp tissue wherein grasping, firing, and retraction is accomplished by operation of the trigger, wherein the grasper is in operative engagement with the firing rack when the outer ring is in the advanced position and is disengaged from the firing rack when the outer ring is in the retracted position. - View Dependent Claims (28, 29, 30)
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Specification