Covidien LP

Tyco Healthcare Group LP

Xingrui Chen

Matthew J Chowaniec

David M Chowaniec

Kelly Valentine

Peter T Collings

Luis A Dussan

Thomas Wingardner

Andriy Buyda

John W Beardsley

Russell Pribanic

Michael A Zemlok

Saumya Banerjee

Brian J Creston

David M McCuen

Elizabeth M Contini

Paul D Richard

Anthony D Calderoni

Christopher Switalski

David A Nicholas

John M Pantazis

Elizabeth Hufnagel

Japhet Colon

Michael P Whitman

Donald Malinouskas

David A Zeichner

Michael Ingmanson

Drew R Seils

Michael A Zemlock

Steven Plachtyna

Blaine Williams

Jennifer Mccabe

David Mccuen

A powered handle assembly includes a motor assembly, a rack, a spur gear, and a manual retract mechanism. The spur gear is movable from a position engaged with the motor assembly and the rack to a positioned disengaged from the motor assembly and engaged with the rack to facilitate manual retraction of the rack.

Powered stapling device with manual retraction

A surgical instrument includes a housing, an elongated portion, and a loading unit. The elongated portion extends distally from the housing, defines a longitudinal axis, and includes an electrical contact. The loading unit is configured to releasably engage the elongated portion. The loading unit includes an electronic component, a proximal portion including an electrical contact in electrical communication with the electronic component, and an end effector coupled to the proximal portion and configured to manipulate tissue. Engagement between the elongated portion and the loading unit causes the electrical contact of the elongated portion to engage the electrical contact of the loading unit thereby electrically connecting the elongated portion and the loading unit.

Surgical instrument with electrical connection

A powered handle assembly includes a motor assembly, a rack, a shaft, and a pinion that couples the motor assembly to the rack. The shaft supports the pinion and is movable to move the pinion from a first position engaged with the rack to a second position disengaged from the rack to facilitate manual retraction of the rack.

Powered stapling device with rack release

An adapter assembly includes a switch actuator, an actuation bar, and a latch. The switch actuator is movable between a proximal position, in which the switch actuator actuates a switch, and a distal position. The latch is movable between a first position, in which the latch permits proximal movement of the switch actuator, and a second position, in which the latch prevents proximal movement of the switch actuator. The latch is configured to move from the first position toward the second position in response to the actuation bar moving toward a proximal position.

Handheld electromechanical surgical system

A surgical stapler includes a loading unit having a staple cartridge having a cartridge distance and a plurality of staples and an anvil to form the plurality of staples upon firing. The surgical stapler also includes a shaft assembly coupled to the load unit. The shaft assembly includes a drive shaft longitudinally movable within the shaft assembly and configured to actuate the loading unit. The surgical stapler further includes a handle assembly having a power source and a motor coupled to the power source and configured to move the drive shaft longitudinally. The handle assembly also includes a distance setting interface including a plurality of switches each of which corresponds to a travel distance that the motor moves the drive shaft, the travel distance corresponding to the cartridge distance.

Low-cost powered stapler with end stop selection

A surgical instrument including a housing, an elongated portion, and a loading unit is disclosed. The elongated portion extends distally from the housing, defines a longitudinal axis, and includes an electrical contact. The loading unit is configured to releasably engage the elongated portion. The loading unit includes an electronic component, a proximal portion including an electrical contact in electrical communication with the electronic component, and an end effector coupled to the proximal portion and configured to manipulate tissue. Engagement between the elongated portion and the loading unit causes the electrical contact of the elongated portion to engage the electrical contact of the loading unit thereby electrically connecting the elongated portion and the loading unit.

A robotic surgical system includes at least one robot arm, at least one instrument, and a plurality of drive motors configured to drive the at least one robot arm and at least one instrument. The system also includes a laparoscopic port having a plurality of fiducials, a sensor configured to detect the plurality of fiducials, and a controller configured to control the plurality of drive motors. The controller includes a processor that determines a current distance between each fiducial among the plurality of fiducials, determines a location of the laparoscopic port based on the distance between each fiducial, determines a position of the at least one robot arm and the at least one instrument relative to the location of the laparoscopic port, and controls the plurality of drive motors to align the at least one robot arm or the at least one instrument with the laparoscopic port.

Robotic surgical system with automated guidance

A surgical stapling device includes a tool assembly and a handle assembly. The tool assembly includes first and second jaw members. The handle assembly includes a rack and a retraction assembly. The rack is operatively coupled to the tool assembly and slidably supported in the handle assembly. The rack includes teeth extending along a length of the rack. The retraction assembly includes a shaft, a lever including a wheel and a lever handle extending from the wheel, and a pawl pivotably secured to the wheel. The lever is secured to the shaft for concomitant rotation therewith. The shaft is transitionable between a disengage state, in which, the pawl is disengaged from the teeth of the rack, and an engaged state, in which, the pawl engages the teeth of the rack such that when the lever handle is rotate about the shaft, the rack is retracted.

Surgical stapling device including a manual retraction assembly

A surgical instrument includes a drive shaft, a motor for rotating the drive shaft, and a motor speed control. The motor speed control includes a first switch and a second switch which are in communication with the motor. The first switch is disposed over and in registration with the second switch. The first switch has an activated state such that the first switch sends a first signal to the motor. The motor rotates the drive shaft in response to the first signal. The second switch sends a second signal to the motor that varies the speed that the motor rotates the drive shaft in response to a force applied to the second switch by the first switch.

Powered surgical instrument with pressure sensitive motor speed control

A handheld electromechanical surgical device includes a non-sterile power-pack having a drive component(s) including a rotatable drive shaft extending therefrom, a main processor configured to control each drive component, a battery configured to power each drive component, an electrical receptacle, and a control interface(s) configured to control a functionality of the drive component. A sterile outer shell housing is configured to removably encase the power-pack to define a sterile barrier thus enabling use in a surgical environment without breaking sterility. The outer shell housing includes a coupler configured to transmit a rotation from the rotatable drive shaft through the outer shell housing, a control button(s) operatively positioned such that actuation of the control button actuates the control interface, and a pass-through connector configured to transmit electrical communications from the electrical receptacle through the outer shell housing.

The present disclosure relates to hand held electromechanical powered surgical handle assemblies for use with surgical end effectors capable of clamping, cutting and/or stapling tissue and methods of use thereof. The surgical device includes a handle assembly and a drive unit assembly removably and selectively connectable to a selected first connecting feature and second connecting feature of the handle assembly. The drive unit assembly includes a motor and a drive shaft driven by the motor.

Growing community of inventors

Glastonbury, CT, United States of America

Xingrui Chen