Patents by Inventor David R. Tholfsen

David R. Tholfsen 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: 20240138987
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 2, 2024
    Inventors: Timothy R. Machold, David R. Tholfsen
  • Publication number: 20240033085
    Abstract: A method for traversing an anatomical vessel wall of a subject is provided. The invention allows the crossing of a wire from one anatomical lumen, such as an artery, vein, esophagus, intestine or airway, through tissue, into another anatomical lumen, or cavity, or into a solid mass of tissue. In some aspects, the invention allows the crossing of a wire from the greater cardiac vein (GCV) into the left atrium without relying on another device in the left atrium to facilitate the crossing.
    Type: Application
    Filed: December 7, 2021
    Publication date: February 1, 2024
    Inventors: Patrick P. Wu, David A. Rahdert, Richard T. Childs, David R. Tholfsen
  • Patent number: 11883292
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: January 30, 2024
    Assignee: MVRx, Inc.
    Inventors: Timothy R. Machold, David R Tholfsen
  • Publication number: 20220175530
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Inventors: David A. RAHDERT, Richard T. CHILDS, David R. THOLFSEN, Patrick P. WU
  • Publication number: 20220175529
    Abstract: Anchors for securing an implant within a body organ and/or reshaping a body organ are provided herein. Anchors are configured for deployment in a body lumen or vasculature of the patient that are curved or conformable to accommodate anatomy of the patient. The invention provides an implant system having multiple anchors, e.g., one or more posterior anchors in combination with one or more anterior anchors. Methods of deploying such anchors, and use of multiple anchors or multiple bridging elements are also provided.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Inventors: Richard T. CHILDS, David A. RAHDERT, David R. THOLFSEN, Patrick P. WU
  • Publication number: 20220096076
    Abstract: Delivery systems, methods and associated devices for management of an elongate element having sections with differing mechanical properties, in particular, for management of a loop of suture-wire element extending proximally from a delivery catheter for deployment of a heart implant. Such management devices can include an inner feature (e.g. outward facing groove or series of tabs) along an inner circle about which a suture can be coiled and an outer feature (e.g. inward facing groove or tabs) to engage and constrain a wire section having increased stiffness within a coil having a larger diameter than the coiled suture. Such devices can be provided separately or can be integrated within a handle of the delivery catheter. Methods of loading suture-wire management devices and utilizing such devices during deployment of an implantable anchor are also described herein.
    Type: Application
    Filed: January 30, 2020
    Publication date: March 31, 2022
    Inventors: Timothy R. Machold, David R. Tholfsen
  • Publication number: 20220039957
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Inventors: Timothy R. Machold, David R Tholfsen
  • Patent number: 11154400
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: October 26, 2021
    Assignee: MVRx, Inc.
    Inventors: Timothy R. Machold, David R. Tholfsen
  • Patent number: 10398437
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 3, 2019
    Assignee: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Patent number: 10219902
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 5, 2019
    Assignee: MVRx, Inc.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Publication number: 20190038410
    Abstract: Delivery systems, methods and associated devices to facilitate delivery and deployment of a heart implant. Such delivery systems and methods of delivery include use of a pair of magnetic catheters, including an anchor delivery catheter carrying an anchor, which can be stacked with or can be axially offset from the magnetic head. Such systems further include use of a puncturing guidewire advanceable through the magnetic head of the anchor delivery catheter to establish access to a chamber of a heart and which is attached to a bridging element such that continued advancement of the guidewire draws a bridging element attached to the first anchor across the chamber of the heart while the bridging element remains covered by the magnetically coupled catheters. Methods and devices herein also allow for cutting and removal of a bridge element of a deployed heart implant.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 7, 2019
    Inventors: Timothy R. Machold, David R. Tholfsen
  • Patent number: 10172621
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: January 8, 2019
    Assignee: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Publication number: 20170216031
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilise an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 3, 2017
    Applicant: MVRX, INC.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Patent number: 9597184
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: March 21, 2017
    Assignee: MVRX, INC.
    Inventors: Timothy R. Machold, David J. Scott, David A. Rahdert, David R. Tholfsen, Robert T. Chang, John A. Macoviak
  • Publication number: 20170055969
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Publication number: 20160374812
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Applicant: MVRx, Inc.
    Inventors: Timothy R. Machold, Robert T. Chang, David A. Rahdert, David Scott, David R. Tholfsen
  • Patent number: 9345858
    Abstract: A system of catheter devices and methods for forming channels or passageways between a luminal anatomical structure (e.g., a blood vessel) and a target location (e.g., another blood vessel, an organ, a mass of tissue, etc.) for the purpose of rerouting blood flow or for delivering a substance or instrument, etc. to the target location.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 24, 2016
    Assignee: Medtronic Vascular, Inc.
    Inventors: J. Christopher Flaherty, Jason B. Whitt, Patrick E. Macaulay, David R. Tholfsen, John T. Garibotto, Philip C. Evard, Joshua Makower
  • Publication number: 20160067043
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 10, 2016
    Applicant: MVRx, INC.
    Inventors: TIMOTHY R. MACHOLD, ROBERT T. CHANG, DAVID A. RAHDERT, DAVID SCOTT, DAVID R. THOLFSEN
  • Publication number: 20150342631
    Abstract: Systems and methods for creating autologous monocuspid and bicuspid valves can include a catheter having a single expandable element or a double expandable element. Once the leaflets of the valve are created, various techniques can be used to fix the leaflets to the vessel wall or to each other, including clips, tissue anchors, adhesives, and heat.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 3, 2015
    Inventors: Fletcher T. Wilson, David R. Tholfsen, Mariel Fabro, Zachary J. Malchano
  • Patent number: 9179896
    Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: November 10, 2015
    Assignee: MVRx, Inc.
    Inventors: Timothy R Machold, David J Scott, David A Rahdert, David R Tholfsen, Robert T Chang, John A Macoviak