Patents by Inventor John Christian Knudson

John Christian Knudson 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: 20230380746
    Abstract: The disclosed technology includes a catheter for electrophysiology applications. The catheter can comprise a shaft extending along a longitudinal axis to a distal end and an end effector coupled to the distal end of the shaft. The end effector can include a plurality of loop members. Each loop member of the plurality of loop members can include a corresponding stress distribution node positioned at a distal portion of the respective loop member and a plurality of electrodes affixed to the plurality of loop members.
    Type: Application
    Filed: April 19, 2023
    Publication date: November 30, 2023
    Inventors: Pieter Emmelius VAN NIEKERK, Dustin R. TOBEY, Amar PATEL, Babak EBRAHIMI, John Christian KNUDSON
  • Publication number: 20230070237
    Abstract: An ablation instrument comprises an elongate shaft having a cannula channel and a scope channel, and an electrode disposed in the cannula channel. The electrode is slidable between a first position in which a distal end of the electrode is contained within the cannula channel, and a second position in which the distal end of the electrode extends out of a distal opening of the cannula channel. The ablation instrument further comprises a distal head coupled to the elongate shaft and configured for contacting solid tissue.
    Type: Application
    Filed: November 9, 2022
    Publication date: March 9, 2023
    Applicant: HOLOGIC, INC.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Patent number: 11529189
    Abstract: An ablation instrument comprises an elongate shaft having a cannula channel and a scope channel, and an electrode disposed in the cannula channel. The electrode is slidable between a first position in which a distal end of the electrode is contained within the cannula channel, and a second position in which the distal end of the electrode extends out of a distal opening of the cannula channel. The ablation instrument further comprises a distal head coupled to the elongate shaft and configured for engaging tissue.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 20, 2022
    Assignee: Hologic, Inc.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Publication number: 20220110674
    Abstract: A treatment device for treatment of overactive bladder conditions operates to suction to grasp and conform a mucosal tissue of the bladder wall to a portion of the tissue treatment device, and deliver energy to non-superficial target tissue at a substantially uniform depth from the mucosal tissue. The tissue treatment device incorporates multiple instruments for different functions needed to treat overactive bladder conditions. The tissue treatment device provides simplified interfaces and mechanisms for operating each of the multiple instruments in a controlled manner. Further, the tissue treatment device is configured to have a low and smooth profile that permits the tissue treatment device to be used without a tubular sheath.
    Type: Application
    Filed: October 25, 2021
    Publication date: April 14, 2022
    Applicant: HOLOGIC, INC.
    Inventors: Kyle Patrick Taylor, Eric S. Whitbrook, John Christian Knudson, Caleb Ole Vainikka
  • Publication number: 20200138511
    Abstract: A device and method that provides a minimally-invasive approach to performing treatments on soft tissue, such as that found in the bladder. The device is useful for manipulating tissue such that treatment tools can be inserted into the tissue at a controlled depth.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Applicant: HOLOGIC, INC.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Patent number: 10548662
    Abstract: A device and method that provides a minimally-invasive approach to performing treatments on soft tissue, such as that found in the bladder. The device is useful for manipulating tissue such that treatment tools can be inserted into the tissue at a controlled depth.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: February 4, 2020
    Assignee: Hologic, Inc.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Publication number: 20180360530
    Abstract: A device and method that provides a minimally-invasive approach to performing treatments on soft tissue, such as that found in the bladder. The device is useful for manipulating tissue such that treatment tools can be inserted into the tissue at a controlled depth.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Applicant: Amphora Medical, Inc.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Patent number: 10058381
    Abstract: A device and method that provides a minimally-invasive approach to performing treatments on soft tissue, such as that found in the bladder. The device is useful for manipulating tissue such that treatment tools can be inserted into the tissue at a controlled depth. In some implementations, the device and method described herein are suited to provide therapy to non-mucosal target tissue (or a target volume of tissue) to modulate bladder function. In an example, energy can be delivered to denervate selected portions of the bladder, such as afferent nerves.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 28, 2018
    Assignee: Amphora Medical, Inc.
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Publication number: 20150335381
    Abstract: A device and method that provides a minimally-invasive approach to performing treatments on soft tissue, such as that found in the bladder. The device is useful for manipulating tissue such that treatment tools can be inserted into the tissue at a controlled depth.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Inventors: Edwin J. Hlavka, Thomas V. Ressemann, Eric Whitbrook, John Christian Knudson
  • Patent number: 7717875
    Abstract: A hydraulically assisted actuator in a handle connects with a catheter having a deflectable distal ablation tip. The hydraulic actuator translates small mechanical movement by a clinician into large travel movements of connected steering cables and increased tension in the ablation tip for greater deflection. The hydraulic system further dampens the return of the ablation tip from a deflected position to an equilibrium position. The hydraulic actuation system is also incorporated into a set of foot pedals.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: May 18, 2010
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: John Christian Knudson, Andrew Thomas Forsberg