SURGICAL STAPLING INSTRUMENT
First Claim
1. A surgical stapler, comprising:
- a shaft;
an end effector movably coupled to said shaft, said end effector comprising;
a staple cartridge channel configured to receive a staple cartridge; and
an anvil movably coupled to said staple cartridge channel;
a lock movable between a locked position and an unlocked position, wherein said lock is movable into engagement with said end effector to lock said end effector in position relative to said shaft; and
a solenoid, comprising;
a housing mounted to said shaft;
windings configured to generate a magnetic field; and
a magnetic element mounted to said lock, wherein said magnetic element is configured to be displaced by the magnetic field produced by said windings to move said lock into one of said locked position and said unlocked position.
2 Assignments
0 Petitions
Accused Products
Abstract
In various embodiments, a surgical stapling instrument can comprise a plurality of magnetic elements configured to articulate an end effector of the surgical instrument. The surgical instrument can comprise at least one electromagnet which can be selectively activated, or polarized, to generate a magnetic field sufficient to motivate a second magnetic element, such as a permanent magnet and/or an iron core, for example, mounted to the end effector. In certain embodiments, a surgical stapling instrument can comprise a plurality of magnetic elements configured to open and/or close an end effector of the surgical instrument. In at least one embodiment, a surgical stapling instrument can comprise a plurality of magnetic elements configured to advance and/or retract a firing bar, cutting member, and/or staple sled within the surgical instrument in order to incise and/or staple tissue positioned within an end effector of the surgical instrument.
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Citations
24 Claims
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1. A surgical stapler, comprising:
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a shaft; an end effector movably coupled to said shaft, said end effector comprising; a staple cartridge channel configured to receive a staple cartridge; and an anvil movably coupled to said staple cartridge channel; a lock movable between a locked position and an unlocked position, wherein said lock is movable into engagement with said end effector to lock said end effector in position relative to said shaft; and a solenoid, comprising; a housing mounted to said shaft; windings configured to generate a magnetic field; and a magnetic element mounted to said lock, wherein said magnetic element is configured to be displaced by the magnetic field produced by said windings to move said lock into one of said locked position and said unlocked position. - View Dependent Claims (2, 3)
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4. A surgical stapler, comprising:
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a shaft; an end effector movably coupled to said shaft, said end effector comprising; a staple cartridge channel configured to receive a staple cartridge; an anvil movably coupled to said staple cartridge channel; and a first magnetic element mounted thereto; and a brake movable between a locked position and an unlocked position, wherein said brake is engageable with said end effector to inhibit relative movement between said end effector and said shaft when said brake is in said locked position, wherein said brake further comprises a second magnetic element mounted thereto, and wherein one of said first magnetic element and said second magnetic element is configured to generate a magnetic field sufficient to move said brake between said locked position and said unlocked position. - View Dependent Claims (5, 6)
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7. A surgical stapler, comprising:
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a handle assembly; a shaft extending from said handle assembly, wherein said shaft comprises; a frame; and a driver rotatable relative to said frame; an end effector, wherein said end effector is movably coupled to said shaft, said end effector comprising; a staple cartridge channel configured to receive a staple cartridge; an anvil movably coupled to said staple cartridge channel; and a gear portion, wherein said driver is operably engaged with said gear portion; an articulation actuator operably engaged with said driver, wherein said articulation actuator is movable between a locked position and an unlocked position; a lock; and a lock actuator movable between a locked position and an unlocked position, wherein said lock is configured to be engaged with said end effector when said lock actuator is in said locked position, wherein said lock is configured to be disengaged from said end effector when said lock actuator is in said unlocked position, and wherein said articulation actuator is configured to rotate said driver when said articulation actuator and said lock actuator are in said unlocked positions. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical stapler, comprising:
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a shaft including a first magnetic element; and an end effector movably coupled to said shaft, said end effector comprising; a staple cartridge channel configured to receive a staple cartridge; an anvil movably coupled to said staple cartridge channel; and a second magnetic element, wherein one of said first magnetic element and said second magnetic element is configured to apply a magnetic force to the other of said first magnetic element and said second magnetic element, and wherein said magnetic force is sufficient to lock the position of said end effector relative to said shaft.
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18. A surgical stapler, comprising:
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a trigger; and an end effector, comprising; a staple cartridge channel configured to receive a staple cartridge; an array of first magnetic elements; an anvil movably coupled to said staple cartridge channel; a movable member configured to be moved along a predetermined path; and a second magnetic element operably coupled to said movable member, wherein said first magnetic elements are configured to apply a magnetic force to said second magnetic element upon an actuation of said trigger, and wherein the orientation of said magnetic force is one of substantially collinear with and substantially parallel to said predetermined path. - View Dependent Claims (19, 20)
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21. A surgical stapler, comprising:
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a trigger; and an end effector, comprising; a staple cartridge channel configured to receive a staple cartridge; an anvil movably coupled to said staple cartridge channel; and an array of first magnetic elements mounted to said anvil; a movable member configured to be moved along a predetermined path; and a second magnetic element operably coupled to said movable member, wherein said second magnetic element is configured to generate a magnetic field upon an actuation of said trigger, and wherein the magnetic filed is configured to displace said movable member along said predetermined path. - View Dependent Claims (22)
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23. A surgical stapler, comprising:
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a trigger; a shaft, comprising; a frame; an array of first magnetic elements mounted to said frame; a firing member movable between a proximal position and a distal position; and a second magnetic element mounted to said firing member, wherein said first magnetic elements are configured to generate a magnetic field upon an actuation of said trigger, and wherein the magnetic field is configured to displace said second magnetic element and to displace said firing member between said proximal position and said distal position; and an end effector coupled to said shaft, comprising; a staple cartridge channel configured to receive a staple cartridge; and an anvil movably coupled to said staple cartridge channel. - View Dependent Claims (24)
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Specification