Patents by Inventor Michael Zemlok

Michael Zemlok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11123067
    Abstract: A powered surgical apparatus, which is configured to engage tissue includes a handle assembly having proximal and distal portions, a movable portion operatively connected to the distal portion of the handle assembly, a tool assembly operatively coupled to the movable portion, a power source configured to supply electrical power, and a transmission system operatively associated with the power source. The movable portion is movable with respect to the handle assembly. The tool assembly is adapted to engage tissue. The transmission system is configured to transmit electrical power or signals between the handle assembly and the movable portion.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: September 21, 2021
    Assignee: Covidien LP
    Inventors: Michael A. Zemlok, Stanislaw Marczyk, Adam J. Ross, Russell Pribanic
  • Patent number: 11109926
    Abstract: A surgical instrument holder includes a carriage and a drive coupler. The carriage is configured for movable engagement to a surgical robotic arm. The drive coupler includes an outer member and a first gear rotatably disposed therein. The outer member extends from the carriage and defines a lateral slot configured for lateral receipt of a surgical instrument. The first gear defines a lateral slot and is rotatable within the outer member to a first position, in which the lateral slot of the first gear is in alignment with the lateral slot of the outer member such that a surgical instrument is receivable within the drive coupler through the lateral slots of the outer member and the first gear.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: September 7, 2021
    Assignee: Covidien LP
    Inventors: Chi Min Seow, Mark Macleod, Michael Zemlok
  • Publication number: 20210259683
    Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Michael Zemlok, David Racenet
  • Publication number: 20210259682
    Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Michael Zemlok, David Racenet
  • Publication number: 20210251626
    Abstract: A surgical stapling apparatus is provided and includes a housing having an actuator; an elongated member extending from the housing; an end effector disposed on an end of the elongated member, the end effector having a first jaw and a second jaw, the first jaw having a staple cartridge and the second jaw having a plurality of staple forming recesses; the staple cartridge having at least a first segment and a second segment, the first segment and the second segment each having a tissue contacting surface and staple receiving slots defined in the tissue contacting surface, the first segment and the second segment being biased toward the second jaw and movable; a biasing members for each of the first segment and the second segment; and a pressure sensor for each of the first segment and the second segment.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Michael A. Zemlok, Adam Ross, Russell Pribanic, Ryan Williams
  • Patent number: 11090044
    Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 17, 2021
    Assignee: Covidien LP
    Inventors: Michael Zemlok, David Racenet
  • Patent number: 11071546
    Abstract: The present disclosure relates to a surgical device including an adapter assembly for selectively interconnecting an end effector and the device housing. The adapter assembly includes at least one drive converter assembly that converts and transmits a rotation of the rotatable drive shaft to an axial translation of at least one axially translatable drive member of the end effector. A first drive converter assembly includes a first drive element, a nut, an articulation sleeve, an articulation bearing, and an articulation link. Rotation of the rotatable drive shaft results in rotation of the first drive element. Rotation of the first drive element results in axial translation of the nut, the articulation sleeve, the articulation bearing, the articulation link, and the at least one axially translatable drive member of the end effector.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: July 27, 2021
    Assignee: Covidien LP
    Inventors: David Nicholas, Russell Pribanic, John Beardsley, Michael Zemlok
  • Patent number: 11051898
    Abstract: A torque transducer for mounting a motor includes a mounting flange, a motor flange, a body, and a strain gauge. The mounting flange is configured to secure the torque transducer to a fixed structure. The motor flange is configured to secure to a motor. The body interconnects the mounting and motor flanges. The body defines a channel about a longitudinal axis of the body and is configured to flex in response to the mounting flange and the motor flange rotating relative to one another in response to torque of the motor. The strain gauge is positioned on the body to measure flexation of the body.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: July 6, 2021
    Assignee: COVIDIEN LP
    Inventors: Michael Zemlok, Chi Min Seow, Jaimeen Kapadia, Richard Lech, Mark MacLeod
  • Patent number: 11045273
    Abstract: A sterile barrier assembly includes a linear drive section and a rotation drive section. The linear drive section includes a corrugated portion interfacing with an axial output of an instrument driving unit on a non-sterile side and an engaging portion interfacing with a tool assembly of a surgical instrument on a sterile side. The rotational drive section includes a first engaging portion interfacing with a rotational output of the instrument driving unit on the non-sterile side and a second engaging portion interfacing with the tool assembly of the surgical instrument on the sterile side.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: June 29, 2021
    Assignee: Covidien LP
    Inventors: Chi Min Seow, Michael Zemlok, Robert Allen
  • Patent number: 11045265
    Abstract: An instrument drive unit for use with a surgical robotic arm includes a body, a first gear, and a driven coupler. The body has a proximal end and a distal end configured to be coupled to a surgical instrument. The first gear is non-rotatably coupled to the proximal end of the body. The driven coupler is disposed at the proximal end of the body and laterally offset from the first gear. The driven coupler is operably coupled to the first gear such that rotation of the driven coupler rotates the first gear to effect rotation of the body about a longitudinal axis defined by the body.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 29, 2021
    Assignee: Covidien LP
    Inventors: Chi Min Seow, Mark MacLeod, Michael Zemlok
  • Publication number: 20210195747
    Abstract: An integrated circuit includes a nexus and a first, a second, a third, and a fourth circuit board. Each of the first and second circuit boards is coupled to opposing sides of the nexus, and each of the third and fourth circuit boards is coupled to opposing sides of the second circuit board. The integrated circuit is transitionable between a first, open configuration, in which the first, second, third and fourth circuit boards and the nexus are substantially coplanar, and a second configuration, in which the first, second, third and fourth circuit boards and the nexus are coupled to one another to define a cavity therein.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Inventors: Chi Min Seow, Jaimeen Kapadia, Richard Lech, Michael Zemlok, Mark Macleod
  • Publication number: 20210177400
    Abstract: A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 17, 2021
    Inventors: Michael Zemlok, David Racenet
  • Patent number: 11033265
    Abstract: An adapter assembly selectively interconnects a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector. The end effector includes a first axially translatable drive member and a second axially translatable drive member. The surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: June 15, 2021
    Assignee: Covidien LP
    Inventors: Michael Zemlok, Ryan Williams, Stanislaw Marczyk, Nihir Patel, David Chowaniec
  • Patent number: 10993718
    Abstract: A surgical stapling apparatus is provided and includes a housing having an actuator; an elongated member extending from the housing; an end effector disposed on an end of the elongated member, the end effector having a first jaw and a second jaw, the first jaw having a staple cartridge and the second jaw having a plurality of staple forming recesses; the staple cartridge having at least a first segment and a second segment, the first segment and the second segment each having a tissue contacting surface and staple receiving slots defined in the tissue contacting surface, the first segment and the second segment being biased toward the second jaw and movable; a biasing members for each of the first segment and the second segment; and a pressure sensor for each of the first segment and the second segment.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: May 4, 2021
    Assignee: COVIDIEN LP
    Inventors: Michael A. Zemlok, Adam Ross, Russell Pribanic, Ryan Williams
  • Publication number: 20210124319
    Abstract: The present disclosure is directed to systems and methods for determining an end of life state for an electromechanical surgical system. The system includes an end effector configured to perform at least one function and a shaft assembly being arranged for selectively interconnecting the end effector and a hand-held surgical instrument. The hand-held surgical instrument includes an instrument housing defining a connecting portion for selectively connecting with the shaft assembly. The hand-held surgical instrument also includes a motor assembly, a sensor array configured to obtain an operational parameter of the hand-held surgical instrument, and a controller configured to control operation of the hand-held surgical instrument based on the operational parameter obtained by the sensor array.
    Type: Application
    Filed: January 5, 2021
    Publication date: April 29, 2021
    Inventors: Thomas Fitzsimmons, Michelle L. Grasso, Michael D. Ingmanson, Michael A. Zemlok
  • Patent number: 10973126
    Abstract: An integrated circuit includes a nexus and a first, a second, a third, and a fourth circuit board. Each of the first and second circuit boards is coupled to opposing sides of the nexus, and each of the third and fourth circuit boards is coupled to opposing sides of the second circuit board. The integrated circuit is transitionable between a first, open configuration, in which the first, second, third and fourth circuit boards and the nexus are substantially coplanar, and a second configuration, in which the first, second, third and fourth circuit boards and the nexus are coupled to one another to define a cavity therein.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: April 6, 2021
    Assignee: Covidien LP
    Inventors: Chi Min Seow, Jaimeen Kapadia, Richard S. Lech, Michael Zemlok, Mark H. Macleod
  • Publication number: 20210085409
    Abstract: An instrument drive unit includes a hub, a motor pack, and an annular member disposed between the hub and the motor pack. The hub and motor pack each have a surface feature. The motor pack is rotatably coupled to the hub. The annular member defines an upper annular channel, and a lower annular channel. The annular member has a stop formed in each of the upper and lower annular channels. Upon the motor pack achieving a threshold amount of rotation relative to the hub, the surface feature of the motor pack abuts the stop of the lower annular channel to rotate the annular member. Upon the annular member achieving a threshold amount of rotation relative to the hub, the stop of the upper annular channel abuts the surface feature of the hub stopping further rotation of the motor pack.
    Type: Application
    Filed: December 10, 2020
    Publication date: March 25, 2021
    Inventors: Chi Min Seow, Jaimeen Kapadia, Mark MacLeod, Michael Zemlok
  • Publication number: 20210077208
    Abstract: A robotic surgical system includes a surgical robotic arm, an electromechanical instrument, an instrument drive unit, and a coupling shaft. The electromechanical instrument is configured to be detachably coupled to the surgical robotic arm. The electromechanical instrument includes a shaft having a proximal end and a distal end having an end effector. The instrument drive unit includes a motor configured to actuate the end effector. The coupling shaft defines a longitudinal axis and is configured to be coupled between the instrument drive unit and the surgical robotic arm such that the instrument drive unit is rotatable about the longitudinal axis of the coupling shaft relative to the surgical robotic arm or the electromechanical instrument.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Robert Allen, Chi Min Seow, Michael Zemlok
  • Publication number: 20210015481
    Abstract: A surgical instrument including a housing, an endoscopic portion, a drive motor, a drive tube, a firing rod and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a first longitudinal axis. The drive motor is disposed at least partially within the housing. The drive tube is disposed in mechanical cooperation with the drive motor and is rotatable about a drive tube axis extending through the drive tube. The firing rod is disposed in mechanical cooperation with the drive tube and at least a portion of the firing rod is translatable with respect to the drive tube. The end effector is disposed adjacent a distal portion of the endoscopic portion and is in mechanical cooperation with the firing rod so that the firing rod drives a surgical function of the end effector.
    Type: Application
    Filed: October 7, 2020
    Publication date: January 21, 2021
    Inventor: Michael A. Zemlok
  • Patent number: 10891149
    Abstract: An authentication and information system for use in a surgical stapling device includes a handle assembly having a controller, the controller having at least one program and a memory, an adapter assembly, and a loading unit having a tool assembly mounted for articulation and a member for actuating articulation of the tool assembly, the loading unit having at least one chip assembly having a chip storing data indicating a position of the member when the tool assembly is in a fully articulated position.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 12, 2021
    Assignee: Covidien LP
    Inventors: Kelly Valentine, Thomas Wingardner, David McCuen, Michael Ingmanson, Gene Stellon, Michael Zemlok, Ethan Collins, Peter Collings