Surgical stapling apparatus
First Claim
1. A surgical stapling apparatus, comprising:
- a first jaw member;
a cartridge configured to selectively couple to the first jaw member, the cartridge defining a channel and having fasteners and a platform area, the platform area defining an aperture;
a second jaw member having an anvil with staple forming depressions;
a drive member movable from a retracted position to an advanced position, the drive member being configured to drive the fasteners toward the anvil;
an actuator rotatably disposed in the aperture of the cartridge and having a head portion at a first end, and a notch at a second end, the actuator being biased by a resilient member from a first position to a second position, the head portion having a tip extending into the channel when the actuator is in the first position; and
an interlock having an extension and being rotatably disposed adjacent the actuator so that the extension is engaged with the notch when the actuator is in the first position, the interlock moving to a position blocking the channel when the actuator moves to the second position.
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Accused Products
Abstract
A surgical stapling apparatus (stapler) is provided. The stapler includes a housing, elongated member, and a reload. A cartridge is configured to selectively couple to a first jaw member of the reload and includes one or more resilient members thereon. An anvil operably supported on a second jaw member of the reload is configured to compress one or more fasteners ejected from the cartridge. The anvil includes one or more locking members thereon. A knife is configured to translate through the cartridge and anvil when the first and second jaw members are in a closed configuration. Engagement between the knife and the resilient member(s) causes the resilient member(s) to move from an initial configuration that allows the knife to travel distally past the locking member(s) to a final configuration that allows the locking member(s) to engage the knife.
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Citations
15 Claims
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1. A surgical stapling apparatus, comprising:
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a first jaw member; a cartridge configured to selectively couple to the first jaw member, the cartridge defining a channel and having fasteners and a platform area, the platform area defining an aperture; a second jaw member having an anvil with staple forming depressions; a drive member movable from a retracted position to an advanced position, the drive member being configured to drive the fasteners toward the anvil; an actuator rotatably disposed in the aperture of the cartridge and having a head portion at a first end, and a notch at a second end, the actuator being biased by a resilient member from a first position to a second position, the head portion having a tip extending into the channel when the actuator is in the first position; and an interlock having an extension and being rotatably disposed adjacent the actuator so that the extension is engaged with the notch when the actuator is in the first position, the interlock moving to a position blocking the channel when the actuator moves to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A surgical stapling apparatus, comprising:
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a first jaw member; a second jaw member; a cartridge configured to selectively couple to the first jaw member, the cartridge including a plurality of fasteners and defining a channel and an aperture; a knife translatable from a retracted position to an advanced position to drive the plurality of fasteners from the cartridge toward the second jaw member; an actuator rotatably supported on the cartridge, the actuator having a tip extending into the channel in a first position of the actuator and positioned outside of the channel in a second position of the actuator, the actuator being biased by a resilient member towards the second position; and an interlock having a nonblocking position and a blocking position, the interlock preventing translation of the knife from the retracted position towards the advanced position when the interlock is in the blocking position, wherein the interlock rotates to the blocking position in response to the actuator rotating to the second position. - View Dependent Claims (15)
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Specification