Patents by Inventor Spencer Witte

Spencer Witte 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: 12514572
    Abstract: In general, separable surgical instrument joints and methods of using separable surgical instrument joints are provided. In an exemplary embodiment, a surgical instrument includes a joint at which a distal tip of the surgical instrument is configured to articulate relative to an elongate shaft of the instrument. The surgical instrument is configured to move between first and second states. In the first state, the distal tip of the surgical instrument cannot be articulated relative to the elongate shaft. In the second state, the distal tip can be articulated relative to the elongate shaft.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: January 6, 2026
    Assignee: Cilag GmbH International
    Inventors: Mark D. Overmyer, Spencer Witte, Dimitrios Chatzigeorgiou, Grant Nair
  • Publication number: 20250387188
    Abstract: A decoupler includes a decoupler housing, a differential assembly rotatably mounted to the decoupler housing and including a first drive shaft rotatable by a first drive output of an instrument driver, wherein a first drive input of a handle is rotatable based on rotation of the first drive shaft, an insertion assembly rotatably mounted to the decoupler housing and including a second drive shaft rotatable by a second drive output of the instrument driver, wherein a second drive input of the handle is rotatable based on rotation of the second drive shaft, and a gear train rotatable by the insertion assembly to cause rotation of the differential assembly.
    Type: Application
    Filed: August 26, 2025
    Publication date: December 25, 2025
    Applicant: Cilag GmbH International
    Inventors: Spencer WITTE, Benjamin DICKERSON, Aren Calder HILL, Trent Michael CALLAN, Dillon CAREY, Matthew STONE, Chris BIRRI, Reed ARENBURG
  • Patent number: 12402967
    Abstract: A robotic surgical tool includes a handle providing a plurality of drive inputs, an elongate shaft including a plurality of sliding rack gears movably nested within a corresponding plurality of longitudinal channels defined along the shaft, and an end effector arranged at a distal end of the shaft and an articulable wrist interposing the end effector and the distal end. An actuation system housed in the handle actuates the drive inputs to move the sliding rack gears and thereby causes operation of at least one of the end effector and the wrist. A tailpiece is arranged at a proximal end of the shaft and is operably coupled to the sliding rack gears, the tailpiece includes a housing and a manual actuation device mounted to the housing and manually actuatable to act on the sliding rack gears and thereby operate at least one of the end effector and the wrist.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: September 2, 2025
    Assignee: Cilag GmbH International
    Inventors: Spencer Witte, Benjamin Dickerson, Aren Calder Hill, Trent Michael Callan, Dillon Carey, Matthew Stone, Chris Birri, Reed Arenburg
  • Patent number: 12390292
    Abstract: A robotic surgical tool includes a handle providing drive inputs and a shaft drive input, an instrument driver providing drive outputs and a shaft drive output, an elongate shaft extendable through the handle and the instrument driver, an end effector and a wrist arranged at a distal end of the shaft, a decoupler interposing the handle and the instrument driver, an insertion assembly mounted to the decoupler housing, and a differential gear train extending between the insertion assembly and each differential assembly included in the decoupler such that actuation of the insertion assembly correspondingly actuates each differential assembly as the shaft moves.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: August 19, 2025
    Assignee: Cilag GmbH International
    Inventors: Spencer Witte, Benjamin Dickerson, Aren Calder Hill, Trent Michael Callan, Dillon Carey
  • Publication number: 20230338103
    Abstract: A robotic surgical tool includes a handle providing drive inputs and a shaft drive input, an instrument driver providing drive outputs and a shaft drive output, an elongate shaft extendable through the handle and the instrument driver, an end effector and a wrist arranged at a distal end of the shaft, a decoupler interposing the handle and the instrument driver, an insertion assembly mounted to the decoupler housing, and a differential gear train extending between the insertion assembly and each differential assembly included in the decoupler such that actuation of the insertion assembly correspondingly actuates each differential assembly as the shaft moves.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 26, 2023
    Applicant: Cilag GmbH International
    Inventors: Spencer WITTE, Benjamin DICKERSON, Aren Calder HILL, Trent Michael CALLAN, Dillon CAREY
  • Publication number: 20230338102
    Abstract: A robotic surgical tool includes a handle providing a plurality of drive inputs, an elongate shaft including a plurality of sliding rack gears movably nested within a corresponding plurality of longitudinal channels defined along the shaft, and an end effector arranged at a distal end of the shaft and an articulable wrist interposing the end effector and the distal end. An actuation system housed in the handle actuates the drive inputs to move the sliding rack gears and thereby causes operation of at least one of the end effector and the wrist. A tailpiece is arranged at a proximal end of the shaft and is operably coupled to the sliding rack gears, the tailpiece includes a housing and a manual actuation device mounted to the housing and manually actuatable to act on the sliding rack gears and thereby operate at least one of the end effector and the wrist.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 26, 2023
    Applicant: Cilag GmbH International
    Inventors: Spencer WITTE, Benjamin David DICKERSON, Aren Calder HILL, Trent Michael CALLAN, Dillon CAREY, Matthew STONE, Chris BIRRI, Reed ARENBURG
  • Publication number: 20230087621
    Abstract: In general, separable surgical instrument joints and methods of using separable surgical instrument joints are provided. In an exemplary embodiment, a surgical instrument includes a joint at which a distal tip of the surgical instrument is configured to articulate relative to an elongate shaft of the instrument. The surgical instrument is configured to move between first and second states. In the first state, the distal tip of the surgical instrument cannot be articulated relative to the elongate shaft. In the second state, the distal tip can be articulated relative to the elongate shaft.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 23, 2023
    Inventors: Mark D. Overmyer, Spencer Witte, Dimitrios Chatzigeorgiou, Grant Nair