SURGICAL STAPLER WITH APPARATUS FOR ADJUSTING STAPLE HEIGHT
First Claim
1. A surgical stapler, comprising:
- a staple cartridge attachment portion configured to receive a staple cartridge; and
an anvil assembly, comprising;
an anvil frame;
an adjustable anvil portion comprising a positioning surface and a staple forming surface; and
an adjustment member movably positionable intermediate said anvil frame and said adjustable anvil portion, wherein said adjustment member comprises a first portion comprising a first thickness and a second portion comprising a second thickness, wherein said second thickness is different than said first thickness, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first portion and said second portion intermediate said anvil frame and said positioning surface; and
a detent member configured to removably lock said adjustment member in said first position and said second position.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical stapling instrument including a staple sled which can be advanced and/or retracted relative to first and second jaw members, wherein the staple sled can be configured to deploy staples from a staple cartridge in one of the first and second jaw members. In at least one embodiment, the other of the first and second jaw members can include an anvil having at least one forming surface which can be configured to deform the staples as they are deployed from the staple cartridge. In at least one form of the invention, the anvil can be movably adjustable relative to the staple cartridge in order to adjust the distance in which the staples are deformed. In various embodiments, the anvil can be adjusted by a slidable adjusting plate and/or a rotatable cam.
413 Citations
19 Claims
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1. A surgical stapler, comprising:
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a staple cartridge attachment portion configured to receive a staple cartridge; and an anvil assembly, comprising; an anvil frame; an adjustable anvil portion comprising a positioning surface and a staple forming surface; and an adjustment member movably positionable intermediate said anvil frame and said adjustable anvil portion, wherein said adjustment member comprises a first portion comprising a first thickness and a second portion comprising a second thickness, wherein said second thickness is different than said first thickness, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first portion and said second portion intermediate said anvil frame and said positioning surface; and a detent member configured to removably lock said adjustment member in said first position and said second position. - View Dependent Claims (2, 3, 4)
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5. A surgical stapler, comprising:
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a staple cartridge attachment portion configured to receive a staple cartridge; and an anvil assembly, comprising; an anvil frame; an anvil comprising a positioning surface and a staple forming surface; and an adjustment member movably positionable intermediate said anvil frame and said anvil, wherein said adjustment member comprises a first step comprising a first height and a second step comprising a second height, wherein said second height is different than said first height, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first step and said second step intermediate said anvil frame and said positioning surface; and a detent member configured to removably lock said adjustment member in said first position and said second position. - View Dependent Claims (6, 7, 8)
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9. A surgical fastening instrument, comprising:
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a cartridge attachment portion configured to receive a fastener cartridge; and an anvil assembly, comprising; an anvil frame; an anvil plate comprising a positioning surface and a fastener forming surface; and an adjustment member movably positionable intermediate said anvil frame and said anvil plate, wherein said adjustment member comprises a first portion comprising a first thickness and a second portion comprising a second thickness, wherein said second thickness is different than said first thickness, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first portion and said second portion intermediate said anvil frame and said positioning surface, wherein said anvil plate is adjustably and movably retained to said anvil frame. - View Dependent Claims (10, 11, 12, 13)
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14. A surgical fastening instrument, comprising:
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a cartridge attachment portion configured to receive a fastener cartridge; and an anvil assembly, comprising; an anvil frame; an anvil comprising a positioning surface and a fastener forming surface; and an adjustment member movably positionable intermediate said anvil frame and said anvil, wherein said adjustment member comprises a first step comprising a first height and a second step comprising a second height, wherein said second height is different than said first height, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first step and said second step intermediate said anvil frame and said positioning surface, wherein said anvil is adjustably and movably retained to said anvil frame. - View Dependent Claims (15, 16, 17, 18)
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19. A surgical stapler, comprising:
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a handle; a staple cartridge channel configured to receive a staple cartridge; and an anvil assembly, comprising; an anvil channel; a floating anvil plate, wherein said floating anvil plate is movably retained to said anvil channel; and adjustment means for adjusting the position of said floating anvil plate relative to said anvil channel, wherein said adjustment means is moveable between at least a first position and a second position.
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Specification