Patents by Inventor David M. Chowaniec

David M. Chowaniec 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).

  • Publication number: 20220047262
    Abstract: 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.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 17, 2022
    Inventors: David M. Chowaniec, Xingrui Chen, Drew R. Seils, Thomas S. Wingardner, Andriy Buyda, Jennifer Mccabe
  • Publication number: 20210290235
    Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
  • Publication number: 20210212672
    Abstract: An adapter assembly includes an elongate body configured to receive a surgical loading unit and an elongate loading bar coupled to the elongate body and configured to selectively lock the surgical loading unit to the adapter assembly. The elongate loading bar has a distal end defining a slot therein configured for receipt of an articulation link of the surgical loading unit upon an improper insertion of the surgical loading unit into the adapter assembly. With the articulation captured in the slot, rotation of the surgical loading unit toward a fully assembled state with the adapter assembly is resisted.
    Type: Application
    Filed: December 15, 2020
    Publication date: July 15, 2021
    Inventors: Andriy Buyda, David M. Chowaniec, Asa G. DeBlois
  • Patent number: 11026685
    Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 8, 2021
    Assignee: Covidien LP
    Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
  • Patent number: 10772631
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 15, 2020
    Assignee: COVIDIEN LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian
  • Publication number: 20200155150
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 21, 2020
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Patent number: 10561417
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 18, 2020
    Assignee: Covidien LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian
  • Patent number: 10561418
    Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: February 18, 2020
    Assignee: Covidien LP
    Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
  • Patent number: 10548596
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: February 4, 2020
    Assignee: Covidien LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Publication number: 20190021732
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Patent number: 10098637
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 16, 2018
    Assignee: Covidien LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Publication number: 20180228490
    Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 16, 2018
    Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
  • Publication number: 20180199940
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian
  • Patent number: 9918713
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 20, 2018
    Assignee: Covidien LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian
  • Publication number: 20180000481
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: September 19, 2017
    Publication date: January 4, 2018
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Patent number: 9763661
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: September 19, 2017
    Assignee: Covidien LP
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Publication number: 20150374370
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: April 30, 2015
    Publication date: December 31, 2015
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan Williams, Anand Subramanian
  • Publication number: 20150374371
    Abstract: An adapter assembly includes an elongated body, a switch, a sensor link, and an annular member. The elongated body includes a proximal portion configured to couple to a handle assembly and a distal portion configured to couple to a surgical loading unit. The switch is configured to be toggled in response to the surgical loading unit being coupled to the distal portion of the adapter assembly. The sensor link is disposed within the distal portion of the adapter assembly and biased toward a distal position. The sensor link is longitudinally movable between a proximal position and the distal position. The annular member is disposed within the distal portion and is rotatable between a first orientation, in which the annular member prevents distal movement of the sensor link, and a second orientation, in which the sensor link moves distally to toggle the switch.
    Type: Application
    Filed: April 30, 2015
    Publication date: December 31, 2015
    Inventors: Paul Richard, Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian, Nihir Patel
  • Publication number: 20150157320
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 11, 2015
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian
  • Publication number: 20150157321
    Abstract: The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 11, 2015
    Inventors: Earl M. Zergiebel, David M. Chowaniec, Ryan V. Williams, Anand Subramanian