Apparatus for forming variable height surgical fasteners
First Claim
1. A surgical apparatus comprising a surgical fastening assembly including a first jaw and a second jaw, the first jaw having a longitudinal axis and including a plurality of fasteners, the second jaw including an anvil, the first jaw including a first movable member, an ejector, a second movable member, and a gap sensor having an opening configured to receive a driver for the second movable member when a preselected tissue gap is achieved, wherein the first movable member is movable along the longitudinal axis of the first jaw, the first movable member comprising a first sled having a camming surface, the ejector is movable by the first movable member transverse to the movement of the first movable member to eject a fastener from the first jaw, and the second movable member is movable into contact with a portion of the fastener ejected from the first jaw, the second movable member is actuated if a fastener height below a predetermined height is needed.
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Accused Products
Abstract
A surgical device for applying a plurality of surgical staples is provided. The device includes a staple fastening assembly attached to a surgical instrument. The staple fastening assembly includes a pair of cooperating jaws, a jaw operating mechanism, and a gap sensor. A staple magazine having a plurality of staples and an anvil member having a plurality of staple pockets are attached to the jaws. The staple magazine includes a staple crimping cam and a staple dimpling cam that are operatively coupled to the surgical instrument. The jaw operating mechanism is operatively connected to a drive assembly in the surgical instrument for moving the jaws for automatically setting a tissue gap between the cooperating jaws. The gap sensor cooperates with the jaw operating mechanism for controlling staple formation.
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Citations
15 Claims
- 1. A surgical apparatus comprising a surgical fastening assembly including a first jaw and a second jaw, the first jaw having a longitudinal axis and including a plurality of fasteners, the second jaw including an anvil, the first jaw including a first movable member, an ejector, a second movable member, and a gap sensor having an opening configured to receive a driver for the second movable member when a preselected tissue gap is achieved, wherein the first movable member is movable along the longitudinal axis of the first jaw, the first movable member comprising a first sled having a camming surface, the ejector is movable by the first movable member transverse to the movement of the first movable member to eject a fastener from the first jaw, and the second movable member is movable into contact with a portion of the fastener ejected from the first jaw, the second movable member is actuated if a fastener height below a predetermined height is needed.
Specification