Stapling system comprising a firing bar and a lockout
First Claim
1. A stapling system, comprising:
- an anvil comprising an anvil ledge;
a channel comprising a channel ledge;
a firing bar comprising a first projection configured to engage said anvil ledge and a second projection configured to engage said channel ledge;
a replaceable staple cartridge, comprising;
a proximal end positionable adjacent said firing bar;
a distal end positioned opposite said proximal end;
staples;
a vertical slot extending longitudinally from said proximal end toward said distal end, wherein said vertical slot is configured to receive said firing bar during a staple firing stroke; and
a sled spanning across said vertical slot, wherein said sled is movable between a proximal unfired position and a distal fired position; and
a locking member movable vertically and spring-biased into a locked configuration which inhibits said firing bar from being advanced through said staple firing stroke, wherein said sled comprises a proximally-extending portion configured to overcome the spring bias of said locking member if said sled is in its proximal unfired position.
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Accused Products
Abstract
A stapling system is disclosed. The stapling system comprises an anvil, a channel, a firing bar, a replaceable staple cartridge, and a locking member. The anvil comprises an anvil ledge. The channel comprises a channel ledge. The firing bar comprises a first projection configured to engage the anvil ledge and a second projection configured to engage the channel ledge. The replaceable staple cartridge comprises staples, a vertical slot configured to receive the firing bar during a staple firing stroke, and a sled movable between a proximal unfired position and a distal fired position. The locking member is movable vertically and spring-biased into a locked configuration which inhibits the firing bar from being advanced through the staple firing stroke. The sled comprises a proximally-extending portion configured to overcome the spring bias of the locking member if the sled is in its proximal unfired position.
5873 Citations
18 Claims
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1. A stapling system, comprising:
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an anvil comprising an anvil ledge; a channel comprising a channel ledge; a firing bar comprising a first projection configured to engage said anvil ledge and a second projection configured to engage said channel ledge; a replaceable staple cartridge, comprising; a proximal end positionable adjacent said firing bar; a distal end positioned opposite said proximal end; staples; a vertical slot extending longitudinally from said proximal end toward said distal end, wherein said vertical slot is configured to receive said firing bar during a staple firing stroke; and a sled spanning across said vertical slot, wherein said sled is movable between a proximal unfired position and a distal fired position; and a locking member movable vertically and spring-biased into a locked configuration which inhibits said firing bar from being advanced through said staple firing stroke, wherein said sled comprises a proximally-extending portion configured to overcome the spring bias of said locking member if said sled is in its proximal unfired position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A stapling system, comprising:
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an anvil comprising an anvil ledge; a channel comprising a channel ledge; a firing bar comprising a first projection configured to engage said anvil ledge and a second projection configured to engage said channel ledge; a replaceable staple cartridge, comprising; a proximal end positionable adjacent said firing bar; a distal end positioned opposite said proximal end; staples; a vertical slot extending longitudinally from said proximal end toward said distal end, wherein said vertical slot is configured to receive said firing bar during a staple firing stroke; and a sled spanning from one side of said vertical slot to another side of said vertical slot, wherein said sled is movable between a proximal unfired position and a distal fired position; and a locking element movable vertically and spring-biased into a locked state which inhibits said firing bar from being advanced through said staple firing stroke, wherein said sled comprises a proximally-extending portion configured to overcome the spring bias of said locking element if said sled is in its proximal unfired position. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A stapling system, comprising:
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an anvil; a channel; a firing bar comprising a first cam configured to engage said anvil and a second cam configured to engage said channel; a replaceable staple cartridge, comprising; a proximal end; a distal end positioned opposite said proximal end; staples; a vertical slot extending longitudinally from said proximal end toward said distal end, wherein said vertical slot is configured to receive said firing bar during a staple firing stroke; and a sled which traverses said vertical slot, wherein said sled is movable between a proximal unfired position and a distal fired position; and a vertically-movable spring-biased lockout system which inhibits said firing bar from being advanced through said staple firing stroke when said sled is not in said proximal unfired position, wherein said sled comprises a proximally-extending portion configured to overcome the spring bias of said lockout system if said sled is in its proximal unfired position. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification