Surgical stapler
First Claim
Patent Images
1. A surgical stapler, comprising:
- a handle assembly including a movable handle;
an elongated body extending distally from the handle assembly and defining a longitudinal axis;
an actuation assembly including an actuation member and a rod, the movable handle being arranged to effect longitudinal movement of the actuation member and rod;
a staple cartridge supported by the elongated body and containing a plurality of staples;
an anvil mounted adjacent the staple cartridge, the anvil having a fastener forming surface thereon, the anvil and staple cartridge being movable in relation to one another between an open and a closed position;
a lockout assembly for engaging the rod, the lockout assembly having a plate with an aperture there through for receiving the control rod, and a biasing member for biasing the plate toward the rod; and
an actuator operatively connected to the actuation member, the actuator being configured to move relative to the staple cartridge and anvil to effectuate sequential ejection of the staples from the staple cartridge.
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Abstract
A surgical device is described herein that can be used to fire different types and sizes of disposable loading units. In a preferred embodiment, the device applies parallel rows of surgical fasteners to body tissue and concomitantly forms an incision between the rows of staples during an endoscopic or laparoscopic surgical procedure. The device can be utilized with disposable loading units configured to apply linear rows of staples measuring from about 15 mm in length to about 60 mm in length and can be used to fire disposable loading units containing surgical clips and individual staples.
1994 Citations
13 Claims
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1. A surgical stapler, comprising:
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a handle assembly including a movable handle; an elongated body extending distally from the handle assembly and defining a longitudinal axis; an actuation assembly including an actuation member and a rod, the movable handle being arranged to effect longitudinal movement of the actuation member and rod; a staple cartridge supported by the elongated body and containing a plurality of staples; an anvil mounted adjacent the staple cartridge, the anvil having a fastener forming surface thereon, the anvil and staple cartridge being movable in relation to one another between an open and a closed position; a lockout assembly for engaging the rod, the lockout assembly having a plate with an aperture there through for receiving the control rod, and a biasing member for biasing the plate toward the rod; and an actuator operatively connected to the actuation member, the actuator being configured to move relative to the staple cartridge and anvil to effectuate sequential ejection of the staples from the staple cartridge. - View Dependent Claims (2, 3, 4, 5)
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6. A surgical stapler, comprising:
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a handle assembly including a movable handle; an elongated body extending distally from the handle assembly and defining a longitudinal axis, the elongated body having a distal end adapted to releasably engage a loading unit; an actuation assembly including an actuation member and a rod, the movable handle being arranged to effect longitudinal movement of the actuation member and rod; a loading unit having a staple cartridge containing a plurality of staples and an anvil mounted adjacent the staple cartridge, the anvil having a fastener forming surface thereon, the anvil and staple cartridge being movable in relation to one another between an open and a closed position, the loading unit having an actuator arranged for operative connection to the actuation member, the actuator being configured to move relative to the staple cartridge and anvil to effectuate sequential ejection of the staples from the staple cartridge; and
a lockout assembly for engaging the rod, the lockout assembly having a plate with an aperture there through for receiving the rod, and a biasing member for biasing the plate toward the rod. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification