Surgical stapling instrument comprising a magnetic element driver
First Claim
1. A surgical stapler, comprising:
- a handle comprising;
a gripping portion; and
a firing trigger movable relative to said gripping portion;
a shaft, comprising;
a shaft axis;
an elongate shaft frame extending from said gripping portion; and
a driver rotatable relative to said elongate shaft frame, said driver comprising a longitudinal aperture;
a firing member slidably positioned within said longitudinal aperture, wherein said firing member is operably coupled with said firing trigger;
an end effector selectively articulatable in first and second directions, 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; and
a motor selectively operable in first and second directions, comprising;
a first magnetic element mounted to said elongate shaft frame along said shaft axis; and
a second magnetic element mounted to said driver, wherein said first magnetic element is configured to generate at least one magnetic field sufficient to displace said second magnetic element relative to said elongate shaft frame and rotate said driver, and wherein said first magnetic element and said second magnetic element are radially aligned within said shaft.
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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
28 Claims
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1. A surgical stapler, comprising:
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a handle comprising; a gripping portion; and a firing trigger movable relative to said gripping portion; a shaft, comprising; a shaft axis; an elongate shaft frame extending from said gripping portion; and a driver rotatable relative to said elongate shaft frame, said driver comprising a longitudinal aperture; a firing member slidably positioned within said longitudinal aperture, wherein said firing member is operably coupled with said firing trigger; an end effector selectively articulatable in first and second directions, 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; and a motor selectively operable in first and second directions, comprising; a first magnetic element mounted to said elongate shaft frame along said shaft axis; and a second magnetic element mounted to said driver, wherein said first magnetic element is configured to generate at least one magnetic field sufficient to displace said second magnetic element relative to said elongate shaft frame and rotate said driver, and wherein said first magnetic element and said second magnetic element are radially aligned within said shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical stapler, comprising:
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a handle comprising; a gripping portion; and a firing trigger movable relative to the gripping portion; a shaft, comprising; an elongate shaft frame comprising a first motor portion configured to produce a magnetic field; and a driver rotatable in first and second directions, said driver comprising; a first longitudinal aperture; and a second motor portion, wherein said driver is rotatable relative to said elongate shaft frame, and wherein said second motor portion comprises a plurality of permanent magnets embedded within said driver and configured to interact with said magnetic field produced by said first motor portion; a firing member slidably positioned within said first longitudinal aperture, wherein said firing member is operably coupled to said firing trigger; an articulation joint; and an end effector rotatably coupled to said shaft about said articulation joint, wherein said articulation joint comprises a driven portion operably engaged with said rotatable driver, and wherein said end effector is rotatable in first and second directions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A surgical stapler, comprising:
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a handle comprising a first trigger and a second trigger; a shaft extending from said handle, wherein said shaft comprises; a frame; an articulation joint; a conductor, wherein the operation of said first trigger is configured to electrically couple said conductor with a power source; a first motor portion configured to produce a magnetic field, wherein said first motor portion is positioned adjacent to said articulation joint; and a second motor portion rotatable relative to said first motor portion, wherein said first motor portion is positioned adjacent to said articulation joint, and wherein said second motor portion comprises; a first longitudinal aperture; and at least one magnetic element configured to interact with the magnetic field produced by said first motor portion, an end effector comprising; a proximal end rotatably coupled to said frame about said articulation joint; a distal end; and a driven portion operably engaged with said second motor portion; and a drive member slidably positioned within said first longitudinal aperture operably coupled with said second trigger, wherein said drive member is configured to be advanced between said proximal end and said distal end of said end effector upon at least one actuation of said second trigger. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A surgical stapler, comprising:
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a handle comprising a trigger; a shaft extending from said handle, wherein said shaft comprises; a conductor; a shaft motor, comprising; a shaft frame comprising a first shaft motor portion configured to produce a magnetic field, wherein said first shaft motor portion is in electrical communication with said conductor, and wherein the operation of said trigger is configured to electrically couple said conductor with a power source; and a driver, comprising; a longitudinal aperture, and a second shaft motor portion, wherein said driver is rotatable relative to said shaft frame, and wherein said second shaft motor portion comprises at least one magnetic element configured to interact with the magnetic field produced by said first shaft motor portion; an articulation joint; and a distal shaft portion rotatably coupled to said frame about said articulation joint, wherein said articulation joint comprises a driven portion operably engaged with said rotatable driver; and a firing member slidably positioned within said longitudinal aperture.
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Specification