POLARITY OF HALL MAGNET TO DETECT MISLOADED CARTRIDGE
First Claim
1. A surgical stapling system comprising:
- an elongated shaft assembly configured to transmit actuation motions from an actuator; and
an end effector for compressing and stapling tissue, the end effector operably coupled to the elongated shaft, the end effector comprising;
an elongated channel;
an anvil having a staple forming surface thereon, the anvil moveable to relative to the elongated channel between an open position and a closed position;
the anvil having a magnet located at the distal end; and
a staple cartridge removably positioned within the elongated channel, the staple cartridge comprising;
a cartridge body supported for a confronting relationship with the anvil when the anvil is in the closed position;
a plurality of staple drivers located within the cartridge body, wherein each one of the plurality of staple drivers supports a staple;
a Hall effect sensor located at the distal end of the cartridge body; and
a microprocessor in communication with the Hall effect sensor;
wherein the Hall effect sensor and microprocessor receive power when the staple cartridge is positioned within the elongated channel, and wherein the system is operable to identify the staple cartridge.
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Accused Products
Abstract
A surgical stapling system including a shaft assembly transmits actuation motions from an actuator and an end effector compresses and staples tissue. The end effector comprises an channel; an anvil having a staple forming surface is moveable relative to the channel between open and closed positions; the anvil having a magnet at the distal end; and a staple cartridge removably positionable within the channel. The staple cartridge comprises a body supported for a confronting relationship with the anvil in its closed position; a plurality of staple drivers located within the cartridge body support a staple; a Hall effect sensor located at the distal end of the body; and a microprocessor in communication with the Hall effect sensor. The Hall effect sensor and microprocessor receive power when the staple cartridge is positioned within the channel, and the system is operable to identify the staple cartridge.
300 Citations
19 Claims
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1. A surgical stapling system comprising:
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an elongated shaft assembly configured to transmit actuation motions from an actuator; and an end effector for compressing and stapling tissue, the end effector operably coupled to the elongated shaft, the end effector comprising; an elongated channel; an anvil having a staple forming surface thereon, the anvil moveable to relative to the elongated channel between an open position and a closed position;
the anvil having a magnet located at the distal end; anda staple cartridge removably positioned within the elongated channel, the staple cartridge comprising; a cartridge body supported for a confronting relationship with the anvil when the anvil is in the closed position; a plurality of staple drivers located within the cartridge body, wherein each one of the plurality of staple drivers supports a staple; a Hall effect sensor located at the distal end of the cartridge body; and a microprocessor in communication with the Hall effect sensor; wherein the Hall effect sensor and microprocessor receive power when the staple cartridge is positioned within the elongated channel, and wherein the system is operable to identify the staple cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 11)
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8. A surgical stapling system comprising:
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an elongated shaft assembly configured to transmit actuation motions from an actuator; and an end effector for compressing and stapling tissue, the end effector operably coupled to the elongated shaft, the end effector comprising; an elongated channel; an anvil having a staple forming surface thereon, the anvil moveable to relative to the elongated channel between an open position and a closed position; and a staple cartridge removably positioned within the elongated channel, the staple cartridge comprising; a cartridge body supported for a confronting relationship with the anvil when the anvil is in the closed position; and a plurality of staple drivers within the cartridge body each supporting a staple; a Hall effect sensor located at the distal end of the cartridge body; a microprocessor in communication with the Hall effect sensor; and a staple retainer removably positioned on the cartridge body, the staple retainer further comprising a magnet positioned in proximity to the Hall effect sensor, the magnet having a magnetic characteristic that identifies the staple cartridge; wherein the Hall effect sensor and microprocessor receive power when the staple cartridge is positioned within the elongated channel, and wherein the system is operable to identify the staple cartridge. - View Dependent Claims (10, 12, 13)
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14. A surgical stapling system comprising:
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an elongated shaft assembly configured to transmit actuation motions from an actuator; and an end effector for compressing and stapling tissue, the end effector operably coupled to the elongated shaft, the end effector comprising; an elongated channel; an anvil having a staple forming surface thereon, the anvil moveable to relative to the elongated channel between an open position and a closed position; and a staple cartridge removably positioned within the elongated channel, the staple cartridge comprising; a cartridge body supported for a confronting relationship with the anvil when the anvil is in the closed position; and a plurality of staple drivers within the cartridge body each supporting a staple; and one or more sensors to interrogate the cartridge. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification