Surgical cutting and stapling instruments with articulatable end effectors
First Claim
1. A surgical end effector, comprising:
- a lower jaw configured to be pivotally coupled to an elongate shaft assembly about a pivot axis;
an upper jaw comprising;
a proximal upper jaw portion pivotally coupled to said lower jaw for selective pivotal travel relative thereto about said pivot axis between open and closed positions upon application of closing and opening motions to said proximal upper jaw portion; and
a distal upper jaw portion movably coupled to said proximal upper jaw portion and supported for parallel movement toward and away from the lower jaw when the proximal upper jaw portion is in said closed position and wherein said surgical end effector further comprises;
a firing member operably supported for operable travel within said surgical end effector relative to said upper and lower jaws when said proximal upper jaw portion is in said closed position and firing motions are applied to said firing member and wherein said firing member is configured to move said distal upper jaw portion toward said lower jaw as said firing member travels in a distal direction through said surgical end effector.
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Accused Products
Abstract
Surgical instruments and end effectors therefor are disclosed. In various implementations, the surgical instrument includes an elongated shaft assembly that defines a longitudinal tool axis. An elongated channel of an end effector is movably coupled to the elongated shaft assembly for selective pivotal travel about a pivot axis that is transverse to the longitudinal tool axis upon application of articulation motions thereto. The elongated channel may be configured to operably support a surgical staple cartridge. An anvil assembly is pivotally coupled to the elongated channel for selective pivotal travel relative thereto between open and closed positions about the pivot axis upon application of closing and opening motions thereto. In some implementations, the anvil assembly comprises a two part assembly.
2738 Citations
14 Claims
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1. A surgical end effector, comprising:
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a lower jaw configured to be pivotally coupled to an elongate shaft assembly about a pivot axis; an upper jaw comprising; a proximal upper jaw portion pivotally coupled to said lower jaw for selective pivotal travel relative thereto about said pivot axis between open and closed positions upon application of closing and opening motions to said proximal upper jaw portion; and a distal upper jaw portion movably coupled to said proximal upper jaw portion and supported for parallel movement toward and away from the lower jaw when the proximal upper jaw portion is in said closed position and wherein said surgical end effector further comprises; a firing member operably supported for operable travel within said surgical end effector relative to said upper and lower jaws when said proximal upper jaw portion is in said closed position and firing motions are applied to said firing member and wherein said firing member is configured to move said distal upper jaw portion toward said lower jaw as said firing member travels in a distal direction through said surgical end effector. - View Dependent Claims (2)
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3. A surgical end effector, comprising:
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a lower jaw configured to be pivotally coupled to an elongate shaft about a pivot axis wherein said lower jaw comprises an elongate channel configured to operably support a surgical staple cartridge therein; an upper jaw comprising; a proximal upper jaw portion pivotally coupled to said lower jaw for selective pivotal travel relative thereto about said pivot axis between open and closed positions upon application of closing and opening motions to said proximal upper jaw portion wherein said proximal upper jaw portion comprises a proximal anvil portion pivotally coupled to said elongate channel; and a distal upper jaw portion movably coupled to said proximal upper jaw portion and supported for parallel movement toward and away from the lower jaw when the proximal upper jaw portion is in said closed position, wherein said distal upper jaw portion comprises a distal anvil portion slidably coupled to said proximal anvil portion, and wherein said surgical end effector further comprises; a surgical staple cartridge; and a firing member operably supported for operable travel within said surgical end effector relative to said upper and lower laws when said proximal upper jaw portion is in said closed position and firing motions are applied to said firing member, said firing member comprising a tissue cutting head configured for axial travel through the surgical end effector such that upon application of one of said firing motions thereto, said firing member moves the distal anvil portion towards the elongate channel and severs tissue clamped between the surgical staple cartridge supported in the elongate channel and the distal anvil portion. - View Dependent Claims (4)
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5. A surgical instrument comprising:
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an elongated shaft assembly; a surgical end effector comprising; an elongated channel coupled to said elongated shaft assembly; a surgical staple cartridge operably supported in said elongated channel; and an anvil assembly comprising; a proximal anvil portion pivotally coupled to said elongated channel about a pivot axis and being selectively movable between open and closed positions upon application of closing and opening motions thereto; and a distal anvil portion slidably coupled to said proximal anvil portion such that when said proximal anvil portion is in said closed position, said distal anvil portion is movable relative thereto while remaining parallel to said elongated channel and wherein said surgical instrument further comprises; a firing member operably supported for operable movement within said surgical end effector upon application of firing and retraction motions thereto; a firing system configured to selectively apply said firing and retraction motions to said firing member wherein, when said firing motion is applied to said firing member, said firing member moves said distal anvil portion towards said elongated channel; and a closure system for applying said opening and closing motions to said proximal anvil portion. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A surgical instrument comprising:
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an elongated shaft assembly defining a longitudinal tool axis; a surgical end effector comprising; an elongated channel movably coupled to the elongated shaft assembly for selective pivotal travel about a pivot axis that is transverse to said longitudinal tool axis upon application of articulation motions thereto, said elongated channel configured to operably support therein a surgical staple cartridge; an anvil assembly pivotally coupled to said elongated channel for selective pivotal travel relative thereto between open and closed positions about said pivot axis upon application of closing and opening motions thereto; an actuation system operably interfacing with said anvil assembly and said elongate channel to selectively apply said closing and opening motions to said anvil assembly and said articulation motions to said elongated channel wherein said actuation system comprises; an actuation pivot movably supported by said elongated channel and interfacing with said anvil assembly; and a reciprocatable actuation bar operably coupled to said actuation pivot such that movement of said reciprocatable actuation bar to a closure position causes the actuation system to apply a closing motion to said anvil assembly and movement of said reciprocatable actuation bar to an articulation position causes said actuation system to apply an articulation motion to said elongated channel to cause said elongated channel to pivot about said pivot axis relative to said elongated shaft assembly; a proximal cam surface on said actuation pivot configured to operably interface with a proximal pin on said anvil assembly; and a distal cam surface on said actuation pivot configured to interface with a distal pin on said anvil assembly. - View Dependent Claims (13, 14)
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Specification