Tool assembly for surgical stapling device
First Claim
Patent Images
1. A surgical device comprising:
- a body portion defining a longitudinal axis;
a tool assembly including;
an anvil member having proximal and distal ends; and
a cartridge assembly having proximal and distal ends, the anvil member and the cartridge assembly being pivotally connected such that the tool assembly is movable between spaced and approximated positions, the cartridge assembly being configured and dimensioned to retain a plurality of surgical fasteners therein;
an approximation member movable through an actuating stroke to move the tool assembly between the spaced position and the approximated position, wherein during the actuating stroke, the approximation member is moved from a proximal position within the tool assembly to a distal position within the tool assembly, the approximation member being configured and dimensioned such that the distal ends of the anvil member and the cartridge assembly are approximated prior to approximation of the proximal ends of the anvil member and the cartridge assembly to minimize distal movement of tissue positioned between the anvil member and the cartridge assembly, and thereby facilitate grasping and manipulation of the tissue; and
a dynamic clamping member movable through the tool assembly to eject the plurality of surgical fasteners from the cartridge assembly,the approximation member being configured and dimensioned such that, during the actuating stroke, separation of the anvil member and the cartridge assembly positions the anvil member and the cartridge assembly in a substantially parallel orientation.
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Abstract
A surgical device with a body portion defining a longitudinal axis, a tool assembly including an anvil, a cartridge assembly housing a plurality of staples, a dynamic clamping member movable relative to the tool assembly to eject the staples, and an articulation and firing actuator extending at least partially through the body portion and the tool assembly. The articulation and firing actuator and is movable in relation thereto to selectively pivot the tool assembly relative to the body portion and move the dynamic clamping member relative to the tool assembly to eject the staples.
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Citations
15 Claims
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1. A surgical device comprising:
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a body portion defining a longitudinal axis; a tool assembly including; an anvil member having proximal and distal ends; and a cartridge assembly having proximal and distal ends, the anvil member and the cartridge assembly being pivotally connected such that the tool assembly is movable between spaced and approximated positions, the cartridge assembly being configured and dimensioned to retain a plurality of surgical fasteners therein; an approximation member movable through an actuating stroke to move the tool assembly between the spaced position and the approximated position, wherein during the actuating stroke, the approximation member is moved from a proximal position within the tool assembly to a distal position within the tool assembly, the approximation member being configured and dimensioned such that the distal ends of the anvil member and the cartridge assembly are approximated prior to approximation of the proximal ends of the anvil member and the cartridge assembly to minimize distal movement of tissue positioned between the anvil member and the cartridge assembly, and thereby facilitate grasping and manipulation of the tissue; and a dynamic clamping member movable through the tool assembly to eject the plurality of surgical fasteners from the cartridge assembly, the approximation member being configured and dimensioned such that, during the actuating stroke, separation of the anvil member and the cartridge assembly positions the anvil member and the cartridge assembly in a substantially parallel orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A tool assembly for use with a surgical fastener applying apparatus, the tool assembly comprising:
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a first jaw including an anvil member having proximal and distal ends; a second jaw including a cartridge assembly having proximal and distal ends pivotally connected to the anvil member such that the tool assembly is movable between spaced and approximated positions, the cartridge assembly being configured and dimensioned to retain a plurality of surgical fasteners therein; an approximation member movable through an actuating stroke to move the tool assembly between the spaced position and the approximated position, wherein during the actuating stroke, the approximation member is moved from a proximal position within the tool assembly to a distal position within the tool assembly, the approximation member being configured and dimensioned such that the distal ends of the anvil member and the cartridge assembly are approximated prior to approximation of the proximal ends of the anvil member and the cartridge assembly to minimize distal movement of tissue positioned between the anvil member and the cartridge assembly and thereby facilitate grasping and manipulation of the tissue; and a dynamic clamping member movable through the tool assembly to eject the plurality of surgical fasteners from the cartridge assembly, the approximation member being configured and dimensioned such that, during the actuating stroke, separation of the anvil member and the cartridge assembly positions the anvil member and the cartridge assembly in a substantially parallel orientation. - View Dependent Claims (11, 12)
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13. A tool assembly for use with a surgical fastener applying apparatus, the tool assembly comprising:
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a first jaw having proximal and distal ends; a second jaw having proximal and distal ends pivotally connected to the first jaw such that the tool assembly is movable between spaced and approximated positions; and an approximation member movable through an actuating stroke to move the tool assembly between the spaced position and the approximated position, the approximation member being configured and dimensioned such that the distal ends of the first jaw and the second jaw are approximated and separated during the actuating stroke. - View Dependent Claims (14, 15)
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Specification