Patents by Inventor Nathan Stewart

Nathan Stewart 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: 11957343
    Abstract: Surgical fasteners for use with articulating surgical instruments are disclosed. In one embodiment, a surgical fastener may include a head, a shaft extending distally from the head, and a through bore extending through the shaft from a proximal surface of the head to a distal end of the shaft. A fastener carrier of a surgical instrument may be slidably received in the through bore, and the through bore may be sized and shaped to have two or fewer contact points with the fastener carrier when the fastener carrier is in a fully articulated configuration. In another embodiment, a fastener may include a head, a shaft extending distally from the head and including a distal tip, a sloped surface sloping toward the distal tip, and a through bore passing through the head, shaft, and sloped surface. The sloped surface may terminate at two shoulders located on opposing sides of the through bore.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: April 16, 2024
    Assignee: C.R. Bard, Inc.
    Inventors: Nathan Stewart Cauldwell, Augustus Felix, Derek Affonce, Kevin J. Ranucci
  • Patent number: 11944289
    Abstract: Articulating surgical instruments are disclosed. In one embodiment, a surgical instrument may include an elongated shaft assembly including an articulable portion moveable between a non-articulated configuration and an articulated configuration. First and second articulating shafts of the elongated shaft assembly may be coaxially arranged and axially fixed at an attachment point located distally from the articulable portion. Proximal portions of the first and second articulating shafts may be displaceable in opposing directions to articulate the articulable portion from the non-articulated configuration to the articulated configuration. In another embodiment, an articulation control may be movable from a first position to a second position to move an articulation lock from a locked configuration to an unlocked configuration to selectively permit articulation of a surgical instrument. The articulation lock also may be movable from the second position to a third position to articulate the surgical instrument.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: April 2, 2024
    Assignee: C.R. Bard, Inc.
    Inventors: Augustus Felix, Derek J. Leatzow, Nathan Stewart Cauldwell, Derek Affonce, Kevin J. Ranucci, Tomas Matusaitis, Alan Bachman
  • Patent number: 11896227
    Abstract: Surgical instruments and their methods of use are disclosed. In some embodiments, the surgical instrument may include a handle and an elongated shaft assembly extending distally from the handle. The surgical instrument may also include a fastener deployment system for deploying fasteners from the elongated shaft assembly including a reciprocating driveshaft disposed within the elongated shaft assembly. The driveshaft may include an internal channel and at least one guide surface shaped and arranged to maintain an orientation of at least one fastener in the channel of the driveshaft. In other embodiments, the fastener deployment system may include a follower disposed within the elongated shaft assembly for displacing one or more fasteners within the elongated shaft assembly towards a distal fastener deployment position.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: February 13, 2024
    Assignee: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Nathan Stewart Cauldwell, Augustus Felix
  • Publication number: 20240032924
    Abstract: A surgical instrument including a power assist device, and its method of use for deploying surgical fasteners, is disclosed. The surgical instrument may include a handle, an elongated shaft extending from the handle, and a surgical fastener deployment system including a driveshaft. The driveshaft is actuatable between at least a first proximal position and a second distal position. A striker is movable relative to the driveshaft and an impact surface is associated with the driveshaft. The impact surface is constructed and arranged to be struck by the striker member to displace the driveshaft to the second distal position and deploy the surgical fastener.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 1, 2024
    Applicant: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Nathan Stewart Cauldwell, Augustus Felix
  • Publication number: 20230371946
    Abstract: Surgical instruments and their methods of use are described. In one embodiment, a surgical instrument includes a power transmission including a trigger and a fastener driver operatively coupled to the trigger. Actuation of the trigger from a first configuration to a second configuration moves the fastener driver between at least a first position and a second position. Additionally, an actuation lockout system operatively associated with the power transmission is moveable between a locked configuration and an unlocked configuration. The actuation lockout system prevents movement of the fastener driver from the first position to the second position when the actuation lockout system is in the locked configuration. Actuation of the trigger from the first configuration towards the second configuration moves the actuation lockout system from the locked configuration to the unlocked configuration.
    Type: Application
    Filed: August 4, 2023
    Publication date: November 23, 2023
    Applicant: C.R. Bard, Inc.
    Inventors: Nathan Stewart Cauldwell, Kevin J. Ranucci
  • Patent number: 11819211
    Abstract: A surgical instrument including a power assist device, and its method of use for deploying surgical fasteners, is disclosed. The surgical instrument may include a handle, an elongated shaft extending from the handle, and a surgical fastener deployment system including a driveshaft. The driveshaft is actuatable between at least a first proximal position and a second distal position. A striker is movable relative to the driveshaft and an impact surface is associated with the driveshaft. The impact surface is constructed and arranged to be struck by the striker member to displace the driveshaft to the second distal position and deploy the surgical fastener.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 21, 2023
    Assignee: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Nathan Stewart Cauldwell, Augustus Felix
  • Patent number: 11796284
    Abstract: An optical sight includes a housing, an optical element supported by the housing, a light source configured to provide a reticle on the optical element, and a light source adjuster configured to change a position of the reticle relative to the optical element. The light source is mounted on an adjustment plate. The light source adjuster includes an adjustment screw, an adjuster block configured to threadably receive the adjustment screw, and a biasing mechanism configured to apply a force to retain the adjuster block in an adjustment position. The adjuster block is directly engaged with the adjustment plate. Rotation of the adjustment screw moves the adjuster block, and movement of the adjuster block moves the adjustment plate.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: October 24, 2023
    Assignee: Trijicon, Inc.
    Inventors: Jerry Glen Sabaldan Elpedes, Nathan Stewart
  • Patent number: 11761816
    Abstract: An optical sight includes a housing, an optical element, and a photo detector. The housing has a main body, a pair of upwardly extending posts, and a cross member extending between the pair of upwardly extending post. The optical element is supported by the housing and positioned between the pair of upwardly extending posts and between the main body and the cross member. The photo detector is positioned in the housing and configured to detect ambient light at a target object. A first post of the pair of upwardly extending posts and the cross member are joined at a shoulder of the housing. The photo detector is formed in the shoulder of the housing.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: September 19, 2023
    Assignee: Trijicon, Inc.
    Inventors: Jerry Glen Sabaldan Elpedes, Nathan Stewart
  • Patent number: 11751868
    Abstract: Surgical instruments and their methods of use are described. In one embodiment, a surgical instrument includes a power transmission including a trigger and a fastener driver operatively coupled to the trigger. Actuation of the trigger from a first configuration to a second configuration moves the fastener driver between at least a first position and a second position. Additionally, an actuation lockout system operatively associated with the power transmission is moveable between a locked configuration and an unlocked configuration. The actuation lockout system prevents movement of the fastener driver from the first position to the second position when the actuation lockout system is in the locked configuration. Actuation of the trigger from the first configuration towards the second configuration moves the actuation lockout system from the locked configuration to the unlocked configuration.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: September 12, 2023
    Assignee: C.R. Bard, Inc.
    Inventors: Nathan Stewart Cauldwell, Kevin J. Ranucci
  • Publication number: 20230225818
    Abstract: Surgical instruments and their methods of use are disclosed. In some embodiments, the surgical instrument may include a handle and an elongated shaft extending distally from the handle. The surgical instrument may also include a fastener deployment system for deploying fasteners from the elongated shaft including a reciprocating driveshaft disposed within the elongated shaft. In other embodiments, the fastener deployment system may include a follower disposed within the elongated shaft for displacing one or more fasteners within the elongated shaft towards a distal fastener deployment position. In some embodiments, the surgical instrument may include a removable preload lock-out attached to the elongated shaft to prevent the follower from applying a preload to the fasteners.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 20, 2023
    Applicant: Davol Inc.
    Inventors: Nathan Stewart Cauldwell, Derek Affonce, Augustus Felix, Talia D'Ambruoso
  • Publication number: 20230225859
    Abstract: A semi-loaded intralocular lens injector device and related methods are described. In some embodiments, an intraocular lens is stored in a non-deformed configuration in a cassette separate from the injector device. When the cassette is inserted into a cavity of the injector device, a projection extending into the cavity deforms the intraocular lens into a predetermined configuration.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 20, 2023
    Applicant: Beaver-Visitec International, Inc.
    Inventors: Nathan Stewart Cauldwell, Paula Yowen Wang, Alexander Yuping Zhu
  • Patent number: 11690693
    Abstract: Surgical instruments and their methods of use are disclosed. In some embodiments, the surgical instrument may include a handle and an elongated shaft extending distally from the handle. The surgical instrument may also include a fastener deployment system for deploying fasteners from the elongated shaft including a reciprocating driveshaft disposed within the elongated shaft. In other embodiments, the fastener deployment system may include a follower disposed within the elongated shaft for displacing one or more fasteners within the elongated shaft towards a distal fastener deployment position. In some embodiments, the surgical instrument may include a removable preload lock-out attached to the elongated shaft to prevent the follower from applying a preload to the fasteners.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: July 4, 2023
    Assignee: Davol Inc.
    Inventors: Nathan Stewart Cauldwell, Derek Affonce, Augustus Felix, Talia D'Ambruoso
  • Publication number: 20230176387
    Abstract: An optical sight includes a housing, an optical element, and a photo detector. The housing has a main body, a pair of upwardly extending posts, and a cross member extending between the pair of upwardly extending post. The optical element is supported by the housing and positioned between the pair of upwardly extending posts and between the main body and the cross member. The photo detector is positioned in the housing and configured to detect ambient light at a target object. A first post of the pair of upwardly extending posts and the cross member are joined at a shoulder of the housing. The photo detector is formed in the shoulder of the housing.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 8, 2023
    Inventors: Jerry Glen SABALDAN ELPEDES, Nathan STEWART
  • Publication number: 20230175813
    Abstract: An optical sight includes a housing, an optical element supported by the housing, a light source configured to provide a reticle on the optical element, and a light source adjuster configured to change a position of the reticle relative to the optical element. The light source is mounted on an adjustment plate. The light source adjuster includes an adjustment screw, an adjuster block configured to threadably receive the adjustment screw, and a biasing mechanism configured to apply a force to retain the adjuster block in an adjustment position. The adjuster block is directly engaged with the adjustment plate. Rotation of the adjustment screw moves the adjuster block, and movement of the adjuster block moves the adjustment plate.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 8, 2023
    Inventors: Jerry Glen SABALDAN ELPEDES, Nathan STEWART
  • Patent number: 11653906
    Abstract: A surgical instrument and its method of use are disclosed. In one embodiment, the surgical instrument may include a handle and an elongated shaft assembly extending distally from the handle. The elongated shaft assembly may include an articulable portion with an articulation direction. The elongated shaft assembly may also include a tubular member with a flexible portion with a preferential bending direction and a direction of bending resistance. The tubular member may permit articulation of the elongated shaft assembly when the preferential bending direction is aligned with the articulation direction.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: May 23, 2023
    Assignee: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Nathan Stewart Cauldwell, Augustus Felix
  • Patent number: 11642189
    Abstract: Surgical instruments and their methods of use are disclosed. In some embodiments, the surgical instrument may include a handle and an elongated shaft extending distally from the handle. The surgical instrument may also include a fastener deployment system for deploying fasteners from the elongated shaft including a reciprocating driveshaft disposed within the elongated shaft. In other embodiments, the fastener deployment system may include a follower disposed within the elongated shaft for displacing one or more fasteners within the elongated shaft towards a distal fastener deployment position. In some embodiments, the surgical instrument may include a removable preload lock-out attached to the elongated shaft to prevent the follower from applying a preload to the fasteners.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: May 9, 2023
    Assignee: Davol Inc.
    Inventors: Nathan Stewart Cauldwell, Donald E. Ziniti, Derek Affonce, Justin Lewis, Augustus Felix, Talia D'Ambruoso
  • Publication number: 20230116540
    Abstract: The present disclosure describes apparatus, systems and methods in which a first data storage is maintained for a first group of authorization codes, for example those associated with a local POS system, and second data storage, logically separate from the first data storage, is maintained for a second group of authorization codes, such as those associated with a remote or online sales system. Access control is achieved by checking a received authorization code for validity against one or both groups of authorization codes, without needing to integrate different code assignment systems or different sales systems with one another. The technology has particular utility for automated car wash systems, although it is not limited thereto, and embodiments of the technology may be retrofit to existing car wash control interfaces.
    Type: Application
    Filed: September 8, 2022
    Publication date: April 13, 2023
    Inventors: Jared Jonathan Tapscott, Matthew William Spalding, Nathan Stewart Ewing, Peter Anthony Benford
  • Patent number: 11614225
    Abstract: An optical sight includes a housing, an optical element supported by the housing, a sensor positioned in the housing, a light source configured to selectively illuminate a reticle on the optical element, and a controller configured to control illumination of the reticle based on an output from the sensor. The sensor is configured to detect ambient light at a target object. The controller is configured to control the light source to constantly illuminate the reticle based on a first output from the sensor and illuminate the reticle in pulses based on a second output from the sensor. The first output is different from the second output.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: March 28, 2023
    Assignee: Trijicon, Inc.
    Inventors: Jerry Glen Sabaldan Elpedes, Nathan Stewart
  • Publication number: 20220361878
    Abstract: Embodiments of a surgical instrument and its methods of use are disclosed. The disclosed embodiments of a surgical instrument may include a handle and an elongated shaft assembly distally extending from the handle. The elongated shaft assembly may include an articulable portion. An articulation control may be associated with the elongated shaft assembly. The articulation control may be movable between a first position in which the elongated shaft assembly is arranged in a first articulation position and a second position in which the elongated shaft assembly is arranged in a second articulation position. The surgical instrument may include a fastener deployment system with a locking member. The articulation control may block movement of the locking member when the articulation control is located in the first position. The articulation control may also permit movement of the locking member when the articulation control is located in the second position.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Applicant: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Nathan Stewart Cauldwell, Augustus Felix
  • Publication number: 20220354630
    Abstract: A self-gripping hernia prosthesis including a layer of repair fabric and a plurality of tissue grips protruding from a surface of the repair fabric. The grip may be fabricated independent of the repair fabric and subsequently attached to the layer of fabric. A backing layer may be employed to secure each grip to the repair fabric. Each base may include a base that is located between the repair fabric and the backing layer. Alternatively, the base may be attached directly to the backing layer. The tissue grips may be configured to minimize entanglement with the repair fabric.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Applicant: C.R. Bard, Inc.
    Inventors: Augustus Felix, Matthew Rothberg, Nathan Stewart Cauldwell, Evans Kipyego, Tami L. Rathbun, Amanda Konieczny, Joseph Paul, Jeffrey E. Ransden