A61B17/0686

Surgical system

A surgical instrument configured to be coupled to a robotic surgical system is disclosed. The surgical instrument comprises an end effector, a threaded drive shaft, a firing member drivable by the threaded drive shaft, a closure system configured to move a iaw of the end effector toward a closed position, and a housing assembly coupleable with the robotic surgical system and comprising an array of electrical contacts. The surgical instrument further comprises a first motor configured to drive the closure system, a second motor configured to drive the threaded drive shaft, a first decoupleable electrical contact configured to supply power to the first motor from a power system, and a second decoupleable electrical contact configured to supply power to the second motor from the power system. The power system is selectively interrupted unless a signal is provided to the power system from the robotic surgical system.

Powered surgical stapler

A surgical instrument can comprise a handle, a motor, and a shaft extending from the handle. The handle and/or the shaft can define a longitudinal axis. The surgical instrument can further comprise a fastener cartridge comprising a plurality of fasteners removably stored therein, an anvil configured to deform the fasteners, a closure drive configured to move the anvil toward and away from the fastener cartridge which is rotatable about the longitudinal axis, and a firing drive configured to deploy the fasteners from the fastener cartridge which is rotatable about the longitudinal axis. The surgical instrument can further comprise a transmission comprising a first operating configuration which connects the motor to the closure drive and a second operating configuration which connects the motor to the firing drive.

Surgical end effector
10888328 · 2021-01-12 · ·

A surgical end effector comprising a first jaw and a second jaw is disclosed. The first jaw comprises a staple cartridge including a plurality of staples. The second jaw comprises an anvil comprising an anvil surface and a plurality of staple-forming pockets defined in the anvil surface. The second jaw is movable relative to the first jaw. The second jaw comprises an unclamped position, a first clamped position, and a second clamped position. The first clamped position is different than the second clamped position. The anvil surface is in contact with the staple cartridge when the second jaw is in the first clamped position. The staples are configured to be formed against the staple-forming pockets when the second jaw is in the second clamped position. The anvil surface and the staple cartridge are not in contact with each other when the second jaw is in the second clamped position.

Systems and methods for controlling velocity of a displacement member of a surgical stapling and cutting instrument

A motorized surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, the motor operable to translate the displacement member, a control circuit coupled to the motor, and a position sensor coupled to the control circuit. The control circuit is configured to receive a position output of the position sensor indicative of at least one position of the displacement member and control velocity of the motor to translate the displacement member at a plurality of velocities corresponding to the position output. Each of the plurality of velocities is maintained in a predetermined zone.

STAPLE CARTRIDGE HAVING A PROJECTION

A surgical instrument system is disclosed which comprises a distal end and a staple cartridge assembly comprising staples removably stored therein. The instrument system further comprises a firing drive including an electric motor and a firing member operably couplable with the electric motor. The electric motor is operable to advance the firing member toward the distal end during a staple firing stroke to eject the staples from the staple cartridge. The electric motor is operable to retract the firing member away from the distal end during a retraction stroke. The surgical instrument system further comprises a manually-operated bailout mechanism operable to perform the retraction stroke in lieu of the electric motor, a controller, and a display in communication with the controller. The controller is configured to display the progress of the retraction stroke when the firing member is being manually retracted by the bailout mechanism.

Techniques for adaptive control of motor velocity of a surgical stapling and cutting instrument

A method of controlling motor velocity in a surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, a control circuit coupled to the motor, a position sensor coupled to the control circuit, and a timer coupled to the control circuit. The method includes receiving a first position of a displacement member from a position sensor, starting a timer, advancing the displacement member to a second position by setting a motor velocity to a first velocity, receiving the second position from the position sensor, stopping the timer when the displacement member reaches the second position, receiving elapsed time from the timer, wherein the elapsed time is the time taken by the displacement to move from the first position to the second position, and controlling, by the control circuit, velocity of the motor based on the elapsed time.

Device and method for controlling compression of tissue

A method and device for controlling the compression of tissue include clamping tissue between a first clamping member and a second clamping member by driving at least one of the clamping members with an electric motor toward a predetermined tissue gap between the clamping members and, during the clamping, monitoring a parameter of the electric motor indicative of a clamping force exerted to the tissue by the clamping members. The method and device include, during the clamping, controlling the electric motor, based on the monitored parameter, to limit the clamping force to a predetermined maximum limit.

SURGICAL STAPLING INSTRUMENT
20200405298 · 2020-12-31 ·

A surgical stapling instrument includes an anvil body defining a longitudinal axis, a cartridge body coupled to the anvil body, a staple cartridge releasably mounted relative to the cartridge body, a firing member mounted to the cartridge body and configured for longitudinal movement through the staple cartridge, and a lockout member supported by the cartridge body. The lockout member defines a single longitudinal slot for at least partial reception of the firing member. The lockout member is configured for movement from a locked position preventing longitudinal movement of the firing member to a release position permitting longitudinal movement of the firing member upon mounting of the staple cartridge to the cartridge body.

Stapling instrument for use with a surgical robot

A stapling instrument for use with a surgical robot is disclosed. The stapling instrument comprises an interface including a plurality of rotary members, a shaft rotatable about a longitudinal axis by a first rotary member, an end effector rotatably connected to the shaft about an articulation joint, an articulation cable, a coupling member, and a firing cable. The end effector comprises a first jaw, a second jaw, and a staple cartridge comprising staples. The articulation cable operably connects to a second rotary member and is operable to pull the articulation cable and articulate the end effector. The coupling member is movable through a first stroke to move the second jaw toward the first jaw and movable through a second stroke to fire the staples. The firing cable operably connects to a third rotary member and is operable to drive the coupling member through the first stroke and the second stroke.

SURGICAL INSTRUMENT WITH LOCKOUT MECHANISM
20200397430 · 2020-12-24 ·

Locking assemblies for surgical clamping and cutting instruments include a locking member and a switch. A drive member may be configured to releasably engage a knife and/or a shuttle of the surgical instrument for translating the knife and/or shuttle in a distal direction through a firing stroke. The locking member is movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. A switch, when proximally positioned, releasably engages the locking member to maintain the locking member in the first position. The switch disengages from the locking member when the switch is moved to a distal position.