Patents by Inventor David A. Zeichner

David A. Zeichner 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: 12268387
    Abstract: A hand-held surgical instrument includes a handle housing, a shaft portion extending distally from the handle housing, and an articulation shaft. The articulation shaft may be configured to axially move within the shaft portion to articulate an end effector via a manual activation or a motor activation.
    Type: Grant
    Filed: August 15, 2023
    Date of Patent: April 8, 2025
    Assignee: Covidien LP
    Inventors: David A. Nicholas, Russell Pribanic, David A. Zeichner, Robert H. Knapp
  • Patent number: 12193884
    Abstract: A surgical device includes a power source and a motor coupled to the power source. The device also includes a drive shaft having a proximal drive shaft having a proximal end portion coupled to the motor and a distal end portion, a proximal index gear coupled to the distal end portion of the proximal drive shaft, a distal drive shaft having a proximal end portion and a distal end portion, a distal index gear coupled to the proximal end portion of the distal drive shaft, a spring member biasedly coupling the proximal index gear and the distal index gear. The device also includes a force measurement sensor configured to measure rotation of the proximal index gear and the distal index gear. The device further includes a controller coupled to the force measurement sensor and configured to determine a force applied to the drive shaft based on a difference between rotation of the proximal index gear and the distal index gear.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: January 14, 2025
    Assignee: Covidien LP
    Inventors: Anthony D. Calderoni, David A. Nicholas, John M. Pantazis, David A. Zeichner
  • Publication number: 20230389920
    Abstract: A hand-held surgical instrument includes a handle housing, a shaft portion extending distally from the handle housing, and an articulation shaft. The articulation shaft may be configured to axially move within the shaft portion to articulate an end effector via a manual activation or a motor activation.
    Type: Application
    Filed: August 15, 2023
    Publication date: December 7, 2023
    Inventors: David A. Nicholas, Russell Pribanic, David A. Zeichner, Robert H. Knapp
  • Patent number: 11737747
    Abstract: A hand-held surgical instrument includes a handle housing, a shaft portion extending distally from the handle housing, and an articulation shaft. The articulation shaft may be configured to axially move within the shaft portion to articulate an end effector via a manual activation or a motor activation.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: August 29, 2023
    Assignee: COVIDIEN LP
    Inventors: David A. Nicholas, Russell Pribanic, David A. Zeichner, Robert H. Knapp
  • Patent number: 11389144
    Abstract: A surgical system includes an intelligent surgical device having a drive motor supported in the housing and being in electrical communication with the power source; and control circuitry. The control circuitry includes a feedback system for monitoring a condition of the surgical device during a use thereof and for changing an operative parameter of the surgical device when a change in the monitored condition occurs. The surgical system includes a non-intelligent loading unit for selective connection to the housing of the surgical device and which is actuatable by the drive motor, the loading unit having a first and a second condition. During operation, the drive motor actuates the loading unit from the first condition to the second condition; and when the loading unit achieves the second condition, a change in the at least one monitored condition occurs and an operative parameter of the surgical device is changed.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: July 19, 2022
    Assignee: Covidien LP
    Inventors: David A. Nicholas, David A. Zeichner, David Malinouskas
  • Publication number: 20220151723
    Abstract: A surgical device includes a power source and a motor coupled to the power source. The device also includes a drive shaft having a proximal drive shaft having a proximal end portion coupled to the motor and a distal end portion, a proximal index gear coupled to the distal end portion of the proximal drive shaft, a distal drive shaft having a proximal end portion and a distal end portion, a distal index gear coupled to the proximal end portion of the distal drive shaft, a spring member biasedly coupling the proximal index gear and the distal index gear. The device also includes a force measurement sensor configured to measure rotation of the proximal index gear and the distal index gear. The device further includes a controller coupled to the force measurement sensor and configured to determine a force applied to the drive shaft based on a difference between rotation of the proximal index gear and the distal index gear.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 19, 2022
    Inventors: Anthony D. Calderoni, David A. Nicholas, John M. Pantazis, David A. Zeichner
  • Publication number: 20220133324
    Abstract: A handle assembly for use with a surgical tack applier includes an actuation assembly and an articulation lever assembly configured to articulate an articulation portion of the surgical tack applier. The actuation assembly includes a motor, an actuation rod, and an actuation switch configured to actuate the motor. The actuation rod has a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith, and a second end operatively coupled to a loading unit of the surgical tack applier such that rotation of the actuation rod ejects a surgical tack from the loading unit. The articulation lever assembly includes an articulation rod operatively coupled with an articulation portion of the surgical tack applier such that axial displacement of the articulation rod causes articulation of the articulation portion, and an articulation lever operatively coupled with the articulation rod.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventors: Russell Pribanic, Christopher Switalski, David A. Zeichner, David A. Nicholas
  • Patent number: 11234701
    Abstract: A handle assembly for use with a surgical tack applier includes an actuation assembly and an articulation lever assembly configured to articulate an articulation portion of the surgical tack applier. The actuation assembly includes a motor, an actuation rod, and an actuation switch configured to actuate the motor. The actuation rod has a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith, and a second end operatively coupled to a loading unit of the surgical tack applier such that rotation of the actuation rod ejects a surgical tack from the loading unit. The articulation lever assembly includes an articulation rod operatively coupled with an articulation portion of the surgical tack applier such that axial displacement of the articulation rod causes articulation of the articulation portion, and an articulation lever operatively coupled with the articulation rod.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 1, 2022
    Assignee: Covidien LP
    Inventors: Russell Pribanic, Christopher Switalski, David A. Zeichner, David A. Nicholas
  • Publication number: 20210177406
    Abstract: A hand-held surgical instrument includes a handle housing, a shaft portion extending distally from the handle housing, and an articulation shaft. The articulation shaft may be configured to axially move within the shaft portion to articulate an end effector via a manual activation or a motor activation.
    Type: Application
    Filed: November 4, 2020
    Publication date: June 17, 2021
    Inventors: David A. Nicholas, Russell Pribanic, David A. Zeichner, Robert H. Knapp
  • Publication number: 20200268384
    Abstract: A surgical system and method includes a surgical instrument configured to wirelessly transmit identifying data specific to the surgical instrument and a console configured to receive the identifying data. The console is configured to register the surgical instrument based on the identifying data, establish a wireless two-way communication link between the surgical instrument and the console, receive at least one of operational data and commands from the surgical instrument, and provide operational feedback data to a user of the surgical instrument during an operation of the surgical instrument based on the at least one of operational data and commands.
    Type: Application
    Filed: March 13, 2020
    Publication date: August 27, 2020
    Inventors: Donald Malinouskas, Michael P. Whitman, David A. Zeichner
  • Publication number: 20200253591
    Abstract: A surgical system includes an intelligent surgical device having a drive motor supported in the housing and being in electrical communication with the power source; and control circuitry. The control circuitry includes a feedback system for monitoring a condition of the surgical device during a use thereof and for changing an operative parameter of the surgical device when a change in the monitored condition occurs. The surgical system includes a non-intelligent loading unit for selective connection to the housing of the surgical device and which is actuatable by the drive motor, the loading unit having a first and a second condition. During operation, the drive motor actuates the loading unit from the first condition to the second condition; and when the loading unit achieves the second condition, a change in the at least one monitored condition occurs and an operative parameter of the surgical device is changed.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 13, 2020
    Inventors: David A. NICHOLAS, David A. ZEICHNER, David MALINOUSKAS
  • Publication number: 20200093492
    Abstract: A handle assembly for use with a surgical tack applier includes an actuation assembly and an articulation lever assembly configured to articulate an articulation portion of the surgical tack applier. The actuation assembly includes a motor, an actuation rod, and an actuation switch configured to actuate the motor. The actuation rod has a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith, and a second end operatively coupled to a loading unit of the surgical tack applier such that rotation of the actuation rod ejects a surgical tack from the loading unit. The articulation lever assembly includes an articulation rod operatively coupled with an articulation portion of the surgical tack applier such that axial displacement of the articulation rod causes articulation of the articulation portion, and an articulation lever operatively coupled with the articulation rod.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 26, 2020
    Inventors: Russell Pribanic, Christopher Switalski, David A. Zeichner, David A. Nicholas
  • Patent number: 10588629
    Abstract: A surgical system and method includes a surgical instrument configured to wirelessly transmit identifying data specific to the surgical instrument and a console configured to receive the identifying data. The console is configured to register the surgical instrument based on the identifying data, establish a wireless two-way communication link between the surgical instrument and the console, receive at least one of operational data and commands from the surgical instrument, and provide operational feedback data to a user of the surgical instrument during an operation of the surgical instrument based on the at least one of operational data and commands.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 17, 2020
    Assignee: Covidien LP
    Inventors: Donald Malinouskas, David A. Zeichner, Michael P. Whitman
  • Patent number: 10314659
    Abstract: An electromechanical surgical device includes a motor system configured to drive drive-shafts and a steering cable arrangement. A control system may be provided for controlling the motor system. A remote control unit may also be provided for controlling the motor system via the control system. Optical or Hall-effect devices, may be provided for determining the position of the elements of the surgical instrument based on the detected rotation of the drive-shafts. A memory unit stores a plurality of operating programs or algorithms, each corresponding to a type of surgical instrument attachable to the electro-mechanical surgical device. The control system reads or selects from the plurality of operating programs or algorithms, the operating program or algorithm corresponding to the type of surgical instrument attached to the electromechanical surgical device.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: June 11, 2019
    Assignee: Covidien LP
    Inventors: Michael P. Whitman, John Burbank, David A. Zeichner
  • Patent number: 10105140
    Abstract: A surgical system and method includes a surgical instrument configured to wirelessly transmit identifying data specific to the surgical instrument and a console configured to receive the identifying data. The console is configured to register the surgical instrument based on the identifying data, establish a wireless two-way communication link between the surgical instrument and the console, receive at least one of operational data and commands from the surgical instrument, and provide operational feedback data to a user of the surgical instrument during an operation of the surgical instrument based on the at least one of operational data and commands.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: October 23, 2018
    Assignee: Covidien LP
    Inventors: Donald Malinouskas, David A. Zeichner, Michael P. Whitman, David A. Nicholas, Xingrui Chen
  • Publication number: 20180070943
    Abstract: A surgical system and method includes a surgical instrument configured to wirelessly transmit identifying data specific to the surgical instrument and a console configured to receive the identifying data. The console is configured to register the surgical instrument based on the identifying data, establish a wireless two-way communication link between the surgical instrument and the console, receive at least one of operational data and commands from the surgical instrument, and provide operational feedback data to a user of the surgical instrument during an operation of the surgical instrument based on the at least one of operational data and commands.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 15, 2018
    Inventors: Donald Malinouskas, David A. Zeichner, Michael P. Whitman, David A. Nicholas, Xingrui Chen
  • Publication number: 20170296278
    Abstract: An electromechanical surgical device includes a motor system configured to drive drive-shafts and a steering cable arrangement. A control system may be provided for controlling the motor system. A remote control unit may also be provided for controlling the motor system via the control system. Optical or Hall-effect devices, may be provided for determining the position of the elements of the surgical instrument based on the detected rotation of the drive-shafts. A memory unit stores a plurality of operating programs or algorithms, each corresponding to a type of surgical instrument attachable to the electro-mechanical surgical device. The control system reads or selects from the plurality of operating programs or algorithms, the operating program or algorithm corresponding to the type of surgical instrument attached to the electromechanical surgical device.
    Type: Application
    Filed: July 3, 2017
    Publication date: October 19, 2017
    Inventors: Michael P. Whitman, John Burbank, David A. Zeichner
  • Publication number: 20160270869
    Abstract: An electromechanical surgical device includes a motor system configured to drive drive-shafts and a steering cable arrangement. A control system may be provided for controlling the motor system. A remote control unit may also be provided for controlling the motor system via the control system. Optical or Hall-effect devices, may be provided for determining the position of the elements of the surgical instrument based on the detected rotation of the drive-shafts. A memory unit stores a plurality of operating programs or algorithms, each corresponding to a type of surgical instrument attachable to the electro-mechanical surgical device. The control system reads or selects from the plurality of operating programs or algorithms, the operating program or algorithm corresponding to the type of surgical instrument attached to the electromechanical surgical device.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Inventors: Michael P. Whitman, John Burbank, David A. Zeichner
  • Patent number: 9364224
    Abstract: A surgical device includes a shaft portion coupled to a handle, the handle defining a longitudinal axis. The surgical device also includes a first driver configured to actuate a rotational movement via a first drive shaft and a second driver configured to actuate an articulation movement via a second drive shaft. The surgical device also includes a controller having a first dial and a second dial, the first dial actuated by the first driver and the second dial actuated by the second driver, the second dial positioned within the first dial.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: June 14, 2016
    Assignee: Covidien LP
    Inventors: David A. Nicholas, David A. Zeichner, Donald Malinouskas
  • Patent number: 9364200
    Abstract: An electromechanical surgical device includes a motor system configured to drive drive-shafts and a steering cable arrangement. A control system may be provided for controlling the motor system. A remote control unit may also be provided for controlling the motor system via the control system. Optical or Hall-effect devices, may be provided for determining the position of the elements of the surgical instrument based on the detected rotation of the drive-shafts. A memory unit stores a plurality of operating programs or algorithms, each corresponding to a type of surgical instrument attachable to the electro-mechanical surgical device. The control system reads or selects from the plurality of operating programs or algorithms, the operating program or algorithm corresponding to the type of surgical instrument attached to the electromechanical surgical device.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: June 14, 2016
    Assignee: Covidien LP
    Inventors: Michael P. Whitman, John Burbank, David A. Zeichner