Patents by Inventor Mark A. Christianson

Mark A. Christianson 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: 10779937
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular a device and method for percutaneous annular plication, as a replacement device for a heart valve, whereby the prosthesis has an atrial annular flange or cuff having one or more integral plication windows connected to a pressure actuated flow control member extending into the ventricle, wherein the is a reciprocating mechanical member that is compressed by pressurized working fluid within the heart during ventricular systole.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 22, 2020
    Assignee: VDYNE, INC.
    Inventors: Robert Vidlund, Mark Christianson, David Holtan, Cameron Vidlund
  • Publication number: 20200289259
    Abstract: The invention relates to an A2 clip for a side-delivered prosthetic mitral valve where the A2 clip is extended using a guide wire to capture native mitral leaflet and/or chordae tissue and withdrawing the guide wire contracts the A2 clip and pins the native tissue against the subannular sidewall of the prosthetic valve.
    Type: Application
    Filed: June 16, 2019
    Publication date: September 17, 2020
    Inventors: MARK CHRISTIANSON, ROBERT VIDLUND, SCOTT KRAMER
  • Publication number: 20200289263
    Abstract: The present invention is directed to a proximal anchoring tab for a side delivered prosthetic mitral valve having an elongated distal tab, where the proximal tab anchors the proximal side of the prosthetic valve using a tab or loop deployed to the A3-P3 (proximal) commissure area of the mitral valve, and wherein the elongated distal tab is extended around the posterior P1-P2 leaflet and/or chordae using a guide wire to capture native mitral leaflet and/or chordae tissue and where withdrawing the guide wire contracts the tab and pins the native posterior tissue against the subannular posterior-side sidewall of the prosthetic valve.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 17, 2020
    Inventors: MARK CHRISTIANSON, ROBERT VIDLUND, SCOTT KRAMER
  • Patent number: 10765511
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular a device and method for percutaneous annular plication and heart valve deployment for mounting a pressure actuated flow control sleeve, a pinch valve, as a replacement device for a heart valve, whereby the prosthesis has an atrial annular flange or cuff having one or more integral plication tissue anchors for engaging the valve annulus, wherein the is a reciprocating mechanical member that is compressed by pressurized working fluid within the heart during ventricular systole.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 8, 2020
    Assignee: VDYNE, INC.
    Inventors: Robert Vidlund, Mark Christianson, David Holtan
  • Patent number: 10758346
    Abstract: The invention relates to an A2 clip for a side-delivered prosthetic mitral valve where the A2 clip is extended using a guide wire to capture native mitral leaflet and/or chordae tissue and withdrawing the guide wire contracts the A2 clip and pins the native tissue against the subannular sidewall of the prosthetic valve.
    Type: Grant
    Filed: June 16, 2019
    Date of Patent: September 1, 2020
    Assignee: VDYNE, INC.
    Inventors: Mark Christianson, Robert Vidlund, Scott Kramer
  • Publication number: 20200237506
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular a side delivered transcatheter prosthetic heart valve having a collapsible inner flow control component, and an outer annular support frame having compressible wire cells that facilitate folding flat along the z-axis and compressing the valve vertically along the y-axis, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrially to the mitral valve, the valve having a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.
    Type: Application
    Filed: June 27, 2019
    Publication date: July 30, 2020
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan, Chad Perrin
  • Publication number: 20200188097
    Abstract: The invention relates to a compressible bileaflet frame as a flow control component for a side delivered transcatheter prosthetic valve, and in particular a side delivered transcatheter prosthetic valve wherein the valve and leaflet frame are compressible to a compressed configuration for sideways or lateral introduction (orthogonal) into the body using a delivery catheter for implanting at a desired location in the body, where the compressed configuration has a long-axis oriented roughly perpendicular to the central axis of the native annulus, wherein the long-axis of the compressed configuration of the valve is substantially parallel to a length-wise cylindrical axis of the delivery catheter, and wherein the valve has a height of about 5-60 mm and a diameter of about 25-80 mm.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Inventors: CHAD PERRIN, NEELAKANTAN SAIKRISHNAN, MARK CHRISTIANSON, ROBERT VIDLUND
  • Publication number: 20200179146
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular Compression Capable Annular Frames for a side delivered transcatheter prosthetic heart valve having a annular support frame having compressible wire cells that facilitate rolling and folding the valve length-wise, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrially to the mitral valve, the valve having a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.
    Type: Application
    Filed: June 23, 2019
    Publication date: June 11, 2020
    Inventors: MARK CHRISTIANSON, ROBERT VIDLUND, NEELAKANTAN SAIKRISHNAN
  • Publication number: 20200179112
    Abstract: Apparatus and methods are described herein for anchoring a prosthetic heart valve. In some embodiments, an apparatus includes a tether attachment member that includes a base member that defines at least a portion of a tether passageway through which a portion of a tether extending from a prosthetic heart valve can be received therethrough. The base member defines a locking pin channel that intersects the tether passageway. A locking pin is disposable within the locking pin channel and movable between a first position in which the locking pin is at a spaced distance from the tether passageway, and a second position in which the locking pin intersects the tether passageway and can engage the portion of a tether disposed therein to secure the tether to the tether attachment member.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Applicant: Tendyne Holdings, Inc.
    Inventors: Robert M. Vidlund, Mark Christianson, Craig Ekvall
  • Publication number: 20200163765
    Abstract: A prosthetic heart valve can include an outer support assembly, an inner valve assembly, which define between them an annular space, and a pocket closure that bounds the annular space to form a pocket in which thrombus can be formed and retained. Alternatively, or additionally, the outer support assembly and the inner valve assembly can be coupled at the ventricle ends of the outer support assembly and the inner valve assembly, with the outer support assembly being relatively more compliant in hoop compression in a central, annulus portion than at the ventricle end, so that the prosthetic valve can seat securely in the annulus while imposing minimal loads on the inner valve assembly that could degrade the performance of the valve leaflets.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Applicant: Tendyne Holdings, Inc.
    Inventors: Mark Christianson, Chad Perrin, Zachary Tegels, Craig Ekvall, Robert Vidlund, Son Mai, Michael Evans
  • Patent number: 10653522
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular Compression Capable Annular Frames for a side delivered transcatheter prosthetic heart valve having a annular support frame having compressible wire cells that facilitate rolling and folding the valve length-wise, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrially to the mitral valve, the valve having a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 19, 2020
    Assignee: VDYNE, INC.
    Inventors: Robert Vidlund, Mark Christianson, Neelakantan Saikrishnan
  • Patent number: 10631983
    Abstract: The invention relates to a distal anchoring tab for an orthogonally delivered prosthetic mitral valve where the tab is extended using a guide wire to capture native mitral leaflet and/or chordae tissue and withdrawing the guide wire contracts the tab and pins the native tissue against the subannular sidewall of the prosthetic valve.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 28, 2020
    Assignee: VDYNE, INC.
    Inventors: Mark Christianson, Robert Vidlund
  • Publication number: 20200121458
    Abstract: The invention relates to delivery system for deployment of a prosthetic valve, having a hypotube sheathed guidewire assembly having an outer sheath and an inner guidewire shaft that pushes against a guidewire collar on a tension arm of a compressed transcatheter valve to deliver the valve and position the valve to the RVOT or other location in the body.
    Type: Application
    Filed: June 21, 2019
    Publication date: April 23, 2020
    Inventors: Robert Vidlund, Mark Christianson
  • Publication number: 20200121452
    Abstract: The invention relates to a transcatheter heart valve replacement (A62F2/2412), and in particular an orthogonally delivered transcatheter prosthetic valve frame having a tubular frame for mounting a flow control component wherein the valve frame is compressible to a compressed configuration for sideways or lateral introduction into the body using a delivery catheter for implanting at a desired location in the body, where the compressed configuration has a long-axis oriented roughly perpendicular to the central axis of the native annulus, wherein the long-axis of the compressed configuration of the valve is substantially parallel to a length-wise cylindrical axis of the delivery catheter, and wherein the valve has a height of about 5-60 mm and a diameter of about 25-80 mm.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 23, 2020
    Inventors: Neelakantan Saikrishnan, Mark Christianson, Robert Vidlund
  • Publication number: 20200107743
    Abstract: Disclosed herein are improved neural depth probes for detection and stimulation, along with various related improved components, devices, methods, and technologies. More specifically, the devices are layered depth electrodes with at least two layers, with each of the layers containing at least one thin-film trace disposed thereon. Each of the devices can also have a plurality of layers with at least two traces on each layer and contacts coupled to each trace.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 9, 2020
    Inventors: Thomas Bachinski, Mark A. Christianson, Steve Mertens
  • Patent number: 10610354
    Abstract: Apparatus and methods are described herein for anchoring a prosthetic heart valve. In some embodiments, an apparatus includes a tether attachment member that includes a base member that defines at least a portion of a tether passageway through which a portion of a tether extending from a prosthetic heart valve can be received therethrough. The base member defines a locking pin channel that intersects the tether passageway. A locking pin is disposable within the locking pin channel and movable between a first position in which the locking pin is at a spaced distance from the tether passageway, and a second position in which the locking pin intersects the tether passageway and can engage the portion of a tether disposed therein to secure the tether to the tether attachment member.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: April 7, 2020
    Assignee: Tendyne Holdings, Inc.
    Inventors: Robert M. Vidlund, Mark Christianson, Craig Ekvall
  • Publication number: 20200093589
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular to a side delivered large diameter, low profile transcatheter prosthetic valve having a compressible tubular frame having a side wall and a central axial lumen, said tubular frame having a height of 8-20 mm and a diameter of 40-80 mm, an atrial sealing cuff, a subannular anchoring component, and aa flow control component comprising a leaflet structure, wherein the valve is side-delivered longitudinally to a mitral valve annulus or tricuspid valve annulus of a patient using a 22-34 Fr delivery catheter.
    Type: Application
    Filed: June 10, 2019
    Publication date: March 26, 2020
    Inventors: MARK CHRISTIANSON, ROBERT VIDLUND, NEELAKANTAN SAIKRISHNAN
  • Patent number: 10595996
    Abstract: A prosthetic heart valve can include an outer support assembly, an inner valve assembly, which define between them an annular space, and a pocket closure that bounds the annular space to form a pocket in which thrombus can be formed and retained. Alternatively, or additionally, the outer support assembly and the inner valve assembly can be coupled at the ventricle ends of the outer support assembly and the inner valve assembly, with the outer support assembly being relatively more compliant in hoop compression in a central, annulus portion than at the ventricle end, so that the prosthetic valve can seat securely in the annulus while imposing minimal loads on the inner valve assembly that could degrade the performance of the valve leaflets.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: March 24, 2020
    Assignee: Tendyne Holdings, Inc.
    Inventors: Mark Christianson, Chad Perrin, Zachary Tegels, Craig Ekvall, Robert Vidlund, Son Mai, Michael Evans
  • Patent number: 10595994
    Abstract: The invention relates to a transcatheter heart valve replacement (A61F2/2412), and in particular to a side delivered large diameter, low profile transcatheter prosthetic valve having a compressible tubular frame having a side wall and a central axial lumen, said tubular frame having a height of 8-20 mm and a diameter of 40-80 mm, an atrial sealing cuff, a subannular anchoring component, and aa flow control component comprising a leaflet structure, wherein the valve is side-delivered longitudinally to a mitral valve annulus or tricuspid valve annulus of a patient using a 22-34 Fr delivery catheter.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 24, 2020
    Assignee: VDYNE, LLC
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan
  • Publication number: 20200022809
    Abstract: A prosthetic heart valve includes a self-expanding wire frame body, a valve disposed in the body, a leaflet clip coupled to the body, and a control element operably coupled to the leaflet clip. The body has a proximal end and a distal end. The leaflet clip is configured to be transitioned between a first configuration in which the prosthetic valve can be inserted into a heart, and a second configuration in which the leaflet clip is disposed to capture a native valve leaflet between the leaflet clip and the wire frame body when the body is disposed in a native annulus of an atrioventricular valve of a heart. The control element extends from the leaflet clip through a ventricle of the heart and out a wall of the ventricle to allow a user to transition the leaflet clip from its first configuration to its second configuration.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Applicant: Tendyne Holdings, Inc.
    Inventors: Mark Christianson, Zachary J. Tegels, Craig A. Ekvall, Robert M. Vidlund