Patents by Inventor Neelakantan Saikrishnan

Neelakantan Saikrishnan 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: 20250073025
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame defines a central channel that extends along a central axis. The flow control component is disposed within the central channel and coupled to the outer frame. The flow control component has a set of leaflets mounted within an inner frame. The prosthetic valve is configured to be folded along a longitudinal axis and compressed along the central axis to place the prosthetic valve in a compressed configuration for delivery via a delivery catheter. The longitudinal axis is substantially parallel to a lengthwise axis of the delivery catheter when disposed therein. The prosthetic valve transitions to an expanded configuration when released from the delivery catheter. The flow control component elastically deforms from a substantially cylindrical configuration to a substantially flattened configuration when the prosthetic valve is placed in the compressed configuration.
    Type: Application
    Filed: November 15, 2024
    Publication date: March 6, 2025
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Chad PERRIN, Neelakantan SAIKRISHNAN, Mark CHRISTIANSON
  • Publication number: 20250073028
    Abstract: A prosthetic heart valve includes a valve frame defining an aperture that extends along a central axis and a flow control component mounted within the aperture. The valve frame includes a distal anchoring element and a proximal anchoring element. The valve frame has a compressed configuration to allow the valve to be delivered to a heart of a patient via a delivery catheter. The valve frame is configured to transition to an expanded configuration when released from the delivery catheter. The valve is configured to be seated in a native annulus when the valve frame is in the expanded configuration. The distal and proximal anchoring elements configured to be inserted through the native annulus prior to seating the valve. The proximal anchoring element is ready to be deployed subannularly or is optionally configured to be transitioned from a first configuration to a second configuration after the valve is seated.
    Type: Application
    Filed: November 18, 2024
    Publication date: March 6, 2025
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Mark CHRISTIANSON, Neelakantan SAIKRISHNAN, Scott KRAMER
  • Publication number: 20250073031
    Abstract: Embodiments are described herein that relate to prosthetic heart valves, and devices and methods for use in the delivery and deployment of such valves.
    Type: Application
    Filed: November 18, 2024
    Publication date: March 6, 2025
    Applicant: VDyne, Inc.
    Inventors: Mark CHRISTIANSON, Robert VIDLUND, Neelakantan SAIKRISHNAN
  • Patent number: 12186187
    Abstract: Embodiments are described herein that relate to prosthetic heart valves, and devices and methods for use in the delivery and deployment of such valves.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 7, 2025
    Assignee: VDyne, Inc.
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan
  • Patent number: 12150852
    Abstract: A prosthetic heart valve includes a valve frame defining an aperture that extends along a central axis and a flow control component mounted within the aperture. The valve frame includes a distal anchoring element and a proximal anchoring element. The valve frame has a compressed configuration to allow the valve to be delivered to a heart of a patient via a delivery catheter. The valve frame is configured to transition to an expanded configuration when released from the delivery catheter. The valve is configured to be seated in a native annulus when the valve frame is in the expanded configuration. The distal and proximal anchoring elements configured to be inserted through the native annulus prior to seating the valve. The proximal anchoring element is ready to be deployed subannularly or is optionally configured to be transitioned from a first configuration to a second configuration after the valve is seated.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 26, 2024
    Assignee: VDyne, Inc.
    Inventors: Robert Vidlund, Mark Christianson, Neelakantan Saikrishnan, Scott Kramer
  • Patent number: 12144731
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame defines a central channel that extends along a central axis. The flow control component is disposed within the central channel and coupled to the outer frame. The flow control component has a set of leaflets mounted within an inner frame. The prosthetic valve is configured to be folded along a longitudinal axis and compressed along the central axis to place the prosthetic valve in a compressed configuration for delivery via a delivery catheter. The longitudinal axis is substantially parallel to a lengthwise axis of the delivery catheter when disposed therein. The prosthetic valve transitions to an expanded configuration when released from the delivery catheter. The flow control component elastically deforms from a substantially cylindrical configuration to a substantially flattened configuration when the prosthetic valve is placed in the compressed configuration.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: November 19, 2024
    Assignee: VDyne, Inc.
    Inventors: Robert Vidlund, Chad Perrin, Neelakantan Saikrishnan, Mark Christianson
  • Publication number: 20240225828
    Abstract: A delivery/retrieval system includes a control device and a retrieval element. The control device is removably coupleable to a side-deliverable prosthetic valve and is operable to (i) exert a distally directed force to advance the compressed valve through a delivery sheath and into a chamber of the heart and (ii) exert a proximally directed force to pull the expanded valve from the chamber of the heart into a retrieval sheath. A proximal end portion of the retrieval element is coupleable to a proximal end portion of the control device. A distal end portion of the retrieval element forms an engagement member operable to engage and exert a proximally directed force on a proximal subannular anchoring element of the valve to pull the valve into the retrieval sheath. A guide member is operable to guide at least one edge of the valve as it is pulled into the retrieval sheath.
    Type: Application
    Filed: March 21, 2024
    Publication date: July 11, 2024
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Mark CHRISTIANSON, Craig EKVALL, Cameron VIDLUND, David HOLTAN, Neelakantan SAIKRISHNAN
  • Publication number: 20220409369
    Abstract: A prosthetic valve includes a frame and a flow control component. The frame has an aperture extending through the frame about a central axis. The flow control component is mounted within the aperture and is configured to permit blood flow in a first direction approximately parallel to the vertical axis from an inflow end to an outflow end of the flow control component and to block blood flow in a second direction, opposite the first direction. The frame has an expanded configuration with a first height along the central axis, a first lateral width along a lateral axis perpendicular to the central axis, and a first longitudinal length along a longitudinal axis perpendicular to the central axis and the lateral axis. The frame has a compressed configuration with a second height less than the first height and a second lateral width less than the first lateral width.
    Type: Application
    Filed: February 28, 2022
    Publication date: December 29, 2022
    Applicant: VDyne, Inc.
    Inventors: Mark CHRISTIANSON, Robert VIDLUND, Neelakantan SAIKRISHNAN
  • Publication number: 20220395370
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame defines a central channel that extends along a central axis. The flow control component is disposed within the central channel and coupled to the outer frame. The flow control component has a set of leaflets mounted within an inner frame. The prosthetic valve is configured to be folded along a longitudinal axis and compressed along the central axis to place the prosthetic valve in a compressed configuration for delivery via a delivery catheter. The longitudinal axis is substantially parallel to a lengthwise axis of the delivery catheter when disposed therein. The prosthetic valve transitions to an expanded configuration when released from the delivery catheter. The flow control component elastically deforms from a substantially cylindrical configuration to a substantially flattened configuration when the prosthetic valve is placed in the compressed configuration.
    Type: Application
    Filed: March 7, 2022
    Publication date: December 15, 2022
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Chad PERRIN, Neelakantan SAIKRISHNAN, Mark CHRISTIANSON
  • Patent number: 11464635
    Abstract: An apparatus for stabilizing a prosthetic heart valve within an atrioventricular valve includes a collapsible and expandable stent having an inflow end, an outflow end, and struts forming a plurality of cells connected to one another in a plurality of annular rows around the stent. The stent further includes a collapsible and expandable valve assembly secured to the stent. The valve assembly includes a cuff and a plurality of leaflets having an open configuration and a closed configuration. A cord connected to the stent includes an attachment device adapted to couple the stent to heart tissue of a patient. A method of stabilizing a prosthetic heart valve within an atrioventricular valve annulus is also described.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: October 11, 2022
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Jay Reimer, Brandon Moore, Chad Joshua Green, Paul E. Ashworth, Neelakantan Saikrishnan
  • Publication number: 20220280296
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame has a supra-annular region, a subannular region, and a transannular region therebetween. The flow control component is mounted to the outer frame such that at least a portion of the flow control component is disposed in the transannular region. The prosthetic valve has a delivery configuration for side-delivery via a delivery catheter and is expandable when the prosthetic valve is released from the delivery catheter. The subannular region of the outer frame is disposable in a first configuration as the prosthetic valve is seated in an annulus of a native heart valve and is transitionable to a second configuration after the prosthetic valve is seated in the annulus of the native heart valve.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Applicant: VDyne, Inc.
    Inventors: Mark CHRISTIANSON, Robert VIDLUND, Neelakantan SAIKRISHNAN, Scott KRAMER, Chad PERRIN, Lucas HARDER
  • Publication number: 20220280292
    Abstract: A delivery system for side-delivery of a prosthetic valve includes a compression device defining a lumen having a first perimeter at a proximal end that is larger than a second perimeter of the lumen at a distal end. A loading device is coupleable to the compression device and defines a lumen having substantially the second perimeter. A distal end of the loading device includes a first gate that is movable between an open state and a closed state to at least partially occlude the lumen of the loading device. A delivery device defines a lumen having substantially the second perimeter. A proximal end of the delivery device is coupleable to the distal end of the loading device and includes a second gate movable between an open state and a closed state to at least partially occlude the lumen of the delivery device.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Mark CHRISTIANSON, Neelakantan SAIKRISHNAN, Scott KRAMER, Lucas HARDER, David HOLTAN, Craig EKVALL, Cameron VIDLUND
  • Publication number: 20220249228
    Abstract: The invention relates to a heart valve regurgitation drum and optional closure disk and/or tubular stent to manage and provide levels of intentional regurgitation within an orthogonally delivered transcatheter prosthetic heart valve having a first inner flow control component/valve, a second inner regurgitation 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: March 29, 2022
    Publication date: August 11, 2022
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Mark CHRISTIANSON, Neelakantan SAIKRISHNAN
  • Patent number: 11344413
    Abstract: A prosthetic valve includes a frame and a flow control component. The frame has an aperture extending through the frame about a central axis. The flow control component is mounted within the aperture and is configured to permit blood flow in a first direction approximately parallel to the vertical axis from an inflow end to an outflow end of the flow control component and to block blood flow in a second direction, opposite the first direction. The frame has an expanded configuration with a first height along the central axis, a first lateral width along a lateral axis perpendicular to the central axis, and a first longitudinal length along a longitudinal axis perpendicular to the central axis and the lateral axis. The frame has a compressed configuration with a second height less than the first height and a second lateral width less than the first lateral width.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 31, 2022
    Assignee: VDyne, Inc.
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan
  • Patent number: 11344412
    Abstract: A delivery system for side-delivery of a prosthetic valve includes a compression device defining a lumen having a first perimeter at a proximal end that is larger than a second perimeter of the lumen at a distal end. A loading device is coupleable to the compression device and defines a lumen having substantially the second perimeter. A distal end of the loading device includes a first gate that is movable between an open state and a closed state to at least partially occlude the lumen of the loading device. A delivery device defines a lumen having substantially the second perimeter. A proximal end of the delivery device is coupleable to the distal end of the loading device and includes a second gate movable between an open state and a closed state to at least partially occlude the lumen of the delivery device.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: May 31, 2022
    Assignee: VDyne, Inc.
    Inventors: Robert Vidlund, Mark Christianson, Neelakantan Saikrishnan, Scott Kramer, Lucas Harder, David Holtan, Craig Ekvall, Cameron Vidlund
  • Publication number: 20220160504
    Abstract: A prosthetic heart valve includes a valve frame defining an aperture that extends along a central axis and a flow control component mounted within the aperture. The valve frame includes a distal anchoring element and a proximal anchoring element. The valve frame has a compressed configuration to allow the valve to be delivered to a heart of a patient via a delivery catheter. The valve frame is configured to transition to an expanded configuration when released from the delivery catheter. The valve is configured to be seated in a native annulus when the valve frame is in the expanded configuration. The distal and proximal anchoring elements configured to be inserted through the native annulus prior to seating the valve. The proximal anchoring element is ready to be deployed subannularly or is optionally configured to be transitioned from a first configuration to a second configuration after the valve is seated.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 26, 2022
    Applicant: VDyne, Inc.
    Inventors: Robert VIDLUND, Mark CHRISTIANSON, Neelakantan SAIKRISHNAN, Scott KRAMER
  • Patent number: 11337807
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame has a supra-annular region, a subannular region, and a transannular region therebetween. The flow control component is mounted to the outer frame such that at least a portion of the flow control component is disposed in the transannular region. The prosthetic valve has a delivery configuration for side-delivery via a delivery catheter and is expandable when the prosthetic valve is released from the delivery catheter. The subannular region of the outer frame is disposable in a first configuration as the prosthetic valve is seated in an annulus of a native heart valve and is transitionable to a second configuration after the prosthetic valve is seated in the annulus of the native heart valve.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: May 24, 2022
    Assignee: VDyne, Inc.
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan, Scott Kramer, Chad Perrin, Lucas Harder
  • Patent number: 11331186
    Abstract: A side-deliverable prosthetic heart valve includes an outer frame and a flow control component. The outer frame has a supra-annular region, a subannular region, and a transannular region therebetween. The flow control component is mounted to the outer frame such that at least a portion of the flow control component is disposed in the transannular region. The prosthetic valve has a delivery configuration for side-delivery via a delivery catheter and is expandable when the prosthetic valve is released from the delivery catheter. The subannular region of the outer frame is disposable in a first configuration as the prosthetic valve is seated in an annulus of a native heart valve and is transitionable to a second configuration after the prosthetic valve is seated in the annulus of the native heart valve.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: May 17, 2022
    Assignee: VDyne, Inc.
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan, Scott Kramer, Chad Perrin, Lucas Harder
  • Patent number: 11298227
    Abstract: The invention relates to a heart valve regurgitation drum and optional closure disk and/or tubular stent to manage and provide levels of intentional regurgitation within an orthogonally delivered transcatheter prosthetic heart valve having a first inner flow control component/valve, a second inner regurgitation 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: Grant
    Filed: April 5, 2021
    Date of Patent: April 12, 2022
    Assignee: VDyne, Inc.
    Inventors: Robert Vidlund, Mark Christianson, Neelakantan Saikrishnan
  • Patent number: 11278437
    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 23, 2019
    Date of Patent: March 22, 2022
    Assignee: VDyne, Inc.
    Inventors: Mark Christianson, Robert Vidlund, Neelakantan Saikrishnan