Cilag International Gmbh

Other

Jason Alan Hill

Charles J Scheib

Andrew T Beckman

Benjamin D Dickerson

Eric N Johnson

Travis Michael Schuh

Spencer James Witte

Eric Johnson

Mark A Davison

James M Wilson

Neil Markwardt

William George Saulenas

Christopher W Birri

Austin Michael Fischer

Erica Ding Chin

Robert Decou

Thomas J Erb

A robotic surgical tool includes a handle having a plurality of drive inputs rotatably mounted thereto, an elongate shaft extending through the handle and having an end effector arranged at a distal end thereof, and a plurality of drive members extending along the shaft to the end effector. A plurality of input stacks are arranged within the handle and operatively coupled to the plurality of drive inputs such that actuation of the plurality of drive inputs rotates the plurality of input stacks. Each input stack includes a drive member engagement device that locates and captures a corresponding one of the plurality of drive members at the handle upon rotation of the input stack.

Self-winding cable surgical instruments

A robotic surgical tool includes a handle providing a drive input, an elongate shaft extendable through the handle and having an end effector arranged at a distal end of the shaft, and an accumulator system housed within the handle and operatively coupled to the drive input such that actuation of the drive input operates the accumulator system. At least one drive cable is threaded through the accumulator system and extends distally along the shaft, wherein operation of the accumulator system acts on the at least one drive cable to operate the end effector.

Drive cable accumulation systems for robotic surgical tools

An end effector for a robotic surgical tool includes a first jaw providing a first jaw extension, a second jaw providing a second jaw extension, and an articulable wrist operatively coupled to the first and second jaws. The wrist includes a distal clevis, first and second pulleys rotatably mounted to the distal clevis at a pivot axis, the first jaw extension being pinned to the first pulley and the second jaw extension being pinned to the second pulley, and a linkage mounted to the first and second jaws and defining a slot. An alignment arm is rotatably mounted to the first pulley at the pivot axis and providing an alignment bar translatable within the slot.

Surgical tool end effectors with alignment arms

A robotic surgical tool an elongate shaft, an end effector arranged at a distal end of the shaft and including opposing first and second jaws, and an articulable wrist interposing the end effector and the distal end of the shaft. The wrist includes a linkage mounted to the first and second jaws and defining a slot, a distal wedge positioned within a central portion of the wrist and providing a channel, and an alignment arm interposing the linkage and the distal wedge and providing an alignment head receivable within the slot and a projection receivable within the channel. The alignment head is translatable within the slot and the projection is translatable within the channel during operation of the end effector.

Surgical tool end effectors with distal wedge slot constraint

A surgical tool includes a drive housing having opposing first and second ends and a drive input rotatably mounted to the drive housing at the first end, a carriage mounted entirely within the drive housing and movable between the first and second ends via actuation of the drive input, an instrument driver matable with the drive housing at the first end, a drive output matable with the drive input such that rotation of the drive output rotates the drive input and translates the carriage within the drive housing, a shaft coupled to and extending distally from the carriage and penetrating the first end and the instrument driver, and a fin connected to the carriage and accessible by a user at an exterior of the drive housing, the fin being manually translatable along the exterior of the drive housing between the first and second ends to thereby translate the carriage.

Manual drive functions for surgical tool

An end effector for a robotic surgical tool includes a lower jaw, and an upper jaw opposite the lower jaw and including a first component part matable with a second component part at a mated interface that extends longitudinally and vertically.

Systems for setting jaw gap in surgical tool end effectors

A robotic surgical tool includes an elongate shaft, an end effector arranged at a distal end of the shaft and including a first jaw providing a first jaw extension and a second jaw providing a second jaw extension, and an articulable wrist that interposes the end effector and the distal end, the wrist including an articulation joint rotatable about a first pivot axis, and first and second pulleys rotatably mounted to the articulation joint at a second pivot axis perpendicular to the first pivot axis, the first pulley interposing the first jaw extension and a first joint portion of the articulation joint, and the second pulley interposing the second jaw extension and a second joint portion of the articulation joint. Joining the first and second joint portions secures the first and second pulleys within the wrist.

End effectors for surgical tools with split clevis articulable wrists

A robotic surgical tool includes a shaft extendable through a handle, an end effector arranged at a distal end of the shaft and including a first and second jaws providing first and second jaw extension, a plurality of drive members extending along the shaft and actuatable by the handle, and an articulable wrist interposing the end effector and the distal end. The wrist includes a proximal clevis, a distal clevis rotatably coupled to the proximal clevis, first and second pulleys rotatably mounted to the distal clevis, the first jaw extension being pinned to the first pulley and the second jaw extension being pinned to the second pulley, and a linkage mounted to the jaws. The plurality of drive members terminate at the first and second pulleys and are antagonistically operable to open and close the jaws and articulate the end effector in pitch and yaw.

Multi-function actuation and articulation end effectors

A robotic surgical tool includes an elongate shaft extendable through a handle that provides a drive input, an actuation system housed within the handle and operatively coupled to the drive input such that actuation of the drive input operates the actuation system, a rocker bar system arranged at a proximal end of the shaft and actuatable to articulate an end effector at a distal end of the shaft, and first and second drive cables extending along a portion of the shaft, each drive cable having a proximal end anchored to the shaft proximal to the handle and a distal end anchored to the shaft distal to the handle, wherein the drive cables are threaded through portions of the actuation and rocker bar systems such that operation of the actuation system acts on the drive cables and thereby actuates the rocker bar system to articulate the end effector.

Surgical tools with proximally mounted, cable based actuation systems

A robotic surgical tool includes an elongate shaft extendable through a handle, a drive cable extending along a portion of the shaft, and an actuation system housed within the handle and including an input stack having first and second ends. The input stack includes a drive input arranged at the first end, and an accumulator arranged between the first and second ends and including a differential body defining upper and lower redirect surfaces, and a redirect feature offset from the upper and lower redirect surfaces, wherein the drive cable is threaded through the upper and lower redirect surfaces and the redirect feature, and wherein actuating the actuation system rotates the input stack and thereby acts on the drive cable to cause one or more operations of the surgical tool.

Input stacks for robotic surgical tools

A robotic surgical tool includes a drive housing having a lead screw extending from a first end of the drive housing, a carriage movably mounted to the lead screw at a carriage nut secured to the carriage, and an elongate shaft extending from the carriage and penetrating the first end, the shaft having an end effector arranged at a distal end thereof and comprising a proximal shaft portion releasably coupled to a distal shaft portion at a releasable interface. Proximal and distal portions of one or more mechanisms of the surgical tool extend from the carriage to the end effector within the proximal and distal shaft portions, respectively, and the one or more mechanisms are operable to operate or articulate the end effector.

Segmented shaft for robotic surgical tools

A surgical tool comprising a drive housing having a first end, a spline extending from the first end and having a spline pinion gear mounted to the spline, a drive input that rotatably couples the spline to the first end and provides an input pinion gear; a clutch interposing the spline and input pinion gears and defining an internal gear, and an armature. The armature may be operatively coupled to the clutch and operable to shift the clutch from a first position, where the internal gear simultaneously mates with the spline and input pinion gears such that rotation of the drive input correspondingly rotates the spline, to a second position, where the internal gear is disengaged from the input pinion gear such that the spline is rotatable independent of the drive input.

Decoupling mechanisms for surgical tools

A robotic surgical tool for a robotic instrument driver that includes a handle having a first end, at least one spline rotatably coupled to the handle and extending proximally from the first end, a carriage movably mounted to the at least one spline and including a first layer and a second layer operatively coupled to the first layer. At least one spline extends through a portion of at least one of the first and second layers and the carriage translates along the at least one spline. The robotic surgical tool also includes an elongate shaft extending from the carriage and penetrating the first end, the shaft having an end effector arranged at a distal end thereof and an activating mechanism coupled to one or both of the first and second layers and actuatable to operate a function of the end effector.

Instrument insertion carriage for robotic surgical tools

A surgical instrument and method of operating same includes an end effector and a shaft assembly. The shaft assembly has proximal and distal shaft portions respectively extending along proximal and distal axes, a first elongate member, and an articulation section. The articulation section extends between the proximal and distal shaft portions and is configured to articulate about a first articulation axis and about a second articulation axis to thereby respectively deflect the end effector along a first plane and a second plane. The articulation section has a first lumen radially offset from the proximal and distal axes that longitudinally intersects the first and second articulation axes. The first lumen movably supports the first elongate member such that the radial spacing of the first elongate member is maintained relative to the proximal and distal axes at each of the first and second articulation axes during deflection of the end effector.

Articulation joint with helical lumen

A robotic surgical tool includes an elongate shaft, an end effector arranged at a distal end of the shaft and including opposing first and second jaws, and an articulable wrist that interposes the end effector and the distal end, the wrist including a linkage providing one or more lateral arms receivable within a corresponding one or more grooves defined in the first and second jaws, wherein mounting the linkage to the first and second jaws at the corresponding one or more groove generates a jaw pivot where the first and second jaws pivot between open and closed positions.

Growing community of inventors

Loveland, OH, United States of America

Jason Alan Hill