Patents by Inventor Ramji Iyer

Ramji Iyer 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: 12376963
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valves are implanted using catheter-based deployment systems that include multiple control wires. In particular implementations, the deployment systems can include a retrieval catheter that can be used to recapture the prosthetic heart valve back into a delivery sheath after being expressed from the delivery sheath. The prosthetic heart valves can include a plurality of optional suture knots to enhance migration resistance. Some delivery catheter systems can include a controllably bendable control catheter and/or a deflectable catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Grant
    Filed: May 9, 2025
    Date of Patent: August 5, 2025
    Assignee: Laplace Interventional Inc.
    Inventors: Rachel Jean Anderson, Lucas Tradd Schneider, Gunnar Paul Askegaard, Daniel Oliver, Ramji Iyer
  • Publication number: 20250241750
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to the targeted heart valve site via a delivery catheter. In some embodiments, the heart valve replacement system can assemble a valve device after the valve device is delivered to the heart. In some embodiments, heart valve replacement system includes two anterior flaps that are separate but overlap each other.
    Type: Application
    Filed: April 21, 2025
    Publication date: July 31, 2025
    Inventors: Ramji Iyer, Stephen Anderson, Samuel Thomas Johnson
  • Publication number: 20250228665
    Abstract: Prosthetic heart valves described herein can be deployed using a transcatheter delivery system and technique to interface and anchor in cooperation with the anatomical structures of a native heart valve. Some embodiments of prosthetic mitral valves described herein include an anchor portion that couples the prosthetic mitral valve to the anatomy near the native mitral valve, and a valve portion that is mateable with the anchor portion. Some embodiments of the transcatheter delivery system can include systems and techniques for retrieval of the anchor portions and the valve portion.
    Type: Application
    Filed: March 31, 2025
    Publication date: July 17, 2025
    Inventors: Lucas T. Schneider, Gunnar Askegaard, Kavitha Ganesan, Ramji Iyer, Cyril J. Schweich, Jr., Todd J. Mortier, Zachary Garvey
  • Patent number: 12279953
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, a prosthetic heart valve of the system includes structural features that securely anchor the prosthetic heart valve to the site of the native heart valve. Such structural features can provide robust migration resistance. In particular implementations, the prosthetic heart valves occupy a smaller delivery profile, thereby facilitating a smaller delivery catheter for advancement to the heart.
    Type: Grant
    Filed: July 10, 2024
    Date of Patent: April 22, 2025
    Assignee: Laplace Interventional Inc.
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard
  • Patent number: 12279951
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to the targeted heart valve site via a delivery catheter. In some embodiments, the heart valve replacement system can assemble a valve device after the valve device is delivered to the heart. In some embodiments, heart valve replacement system includes two anterior flaps that are separate but overlap each other.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: April 22, 2025
    Assignee: Laplace Interventional Inc.
    Inventors: Ramji Iyer, Stephen Anderson, Samuel Thomas Johnson
  • Publication number: 20250090196
    Abstract: Devices used to deploy transvascular medical device systems and methods for using such devices are described in this document. For example, this document describes dilating introducer devices used for the percutaneous vascular deployment of catheter-based medical devices such as structural heart medical devices. Such dilating introducer devices can facilitate the percutaneous vascular deployment of catheter-based medical devices without an additional introducer sheath.
    Type: Application
    Filed: March 27, 2024
    Publication date: March 20, 2025
    Inventors: Nathaniel Thomas Smith, Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Publication number: 20250073021
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valve includes structural features that securely anchor the prosthetic heart valve to the anatomy at the site of the native heart valve. Such structural features can provide robust migration resistance. In addition, the prosthetic heart valves can include structural features that improve sealing between the prosthetic valve and native valve anatomy to mitigate paravalvular leakage. In particular implementations, the prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved inner catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Application
    Filed: November 15, 2024
    Publication date: March 6, 2025
    Inventors: Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Patent number: 12144726
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valve includes structural features that securely anchor the prosthetic heart valve to the anatomy at the site of the native heart valve. Such structural features can provide robust migration resistance. In addition, the prosthetic heart valves can include structural features that improve sealing between the prosthetic valve and native valve anatomy to mitigate paravalvular leakage. In particular implementations, the prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved inner catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Grant
    Filed: February 2, 2024
    Date of Patent: November 19, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Publication number: 20240358504
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, a prosthetic heart valve of the system includes structural features that securely anchor the prosthetic heart valve to the site of the native heart valve. Such structural features can provide robust migration resistance. In particular implementations, the prosthetic heart valves occupy a smaller delivery profile, thereby facilitating a smaller delivery catheter for advancement to the heart.
    Type: Application
    Filed: July 10, 2024
    Publication date: October 31, 2024
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard
  • Publication number: 20240350264
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valves are implanted using catheter-based deployment systems that include multiple control wires. In particular implementations, the deployment systems can include a retrieval catheter that can be used to recapture the prosthetic heart valve back into a delivery sheath after being expressed from the delivery sheath. The prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved control catheter and/or a deflectable catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Application
    Filed: November 1, 2023
    Publication date: October 24, 2024
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard, Brett R. Olsen, Rachel Jean Anderson
  • Publication number: 20240350263
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valves are implanted using catheter-based deployment systems that include multiple control wires. In particular implementations, the deployment systems can include a retrieval catheter that can be used to recapture the prosthetic heart valve back into a delivery sheath after being expressed from the delivery sheath. The prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved control catheter and/or a deflectable catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Application
    Filed: October 23, 2023
    Publication date: October 24, 2024
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard, Brett R. Olsen, Rachel Jean Anderson
  • Patent number: 12115064
    Abstract: Prosthetic heart valves described herein can be deployed using a transcatheter delivery system and technique to interface and anchor in cooperation with the anatomical structures of a native heart valve. Some embodiments of prosthetic valves described herein include an anchor portion that couples to the anatomy near a native valve, and a valve portion that is mateable with the anchor portion. In some such embodiments, the anchor portion and/or the deployment system includes one or more prosthetic elements that temporarily augment or replace the sealing function of the native valve leaflets.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: October 15, 2024
    Assignee: Caisson Interventional LLC
    Inventors: Kavitha Ganesan, Ramji Iyer, Todd J. Mortier, Cyril J. Schweich, Jr., Benjamin L. Montag, Steven N. Willard
  • Patent number: 12064349
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valves are implanted using catheter-based deployment systems that include multiple control wires. In particular implementations, the deployment systems can include a retrieval catheter that can be used to recapture the prosthetic heart valve back into a delivery sheath after being expressed from the delivery sheath. The prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved control catheter and/or a deflectable catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: August 20, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard, Brett R. Olsen, Rachel Jean Anderson
  • Patent number: 12059346
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, a prosthetic heart valve of the system includes structural features that securely anchor the prosthetic heart valve to the site of the native heart valve. Such structural features can provide robust migration resistance. In particular implementations, the prosthetic heart valves occupy a smaller delivery profile, thereby facilitating a smaller delivery catheter for advancement to the heart.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: August 13, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard
  • Publication number: 20240173125
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, a prosthetic heart valve of the system includes structural features that securely anchor the prosthetic heart valve to the site of the native heart valve. Such structural features can provide robust migration resistance. In particular implementations, the prosthetic heart valves occupy a smaller delivery profile, thereby facilitating a smaller delivery catheter for advancement to the heart.
    Type: Application
    Filed: January 31, 2024
    Publication date: May 30, 2024
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard
  • Publication number: 20240173120
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valve includes structural features that securely anchor the prosthetic heart valve to the anatomy at the site of the native heart valve. Such structural features can provide robust migration resistance. In addition, the prosthetic heart valves can include structural features that improve sealing between the prosthetic valve and native valve anatomy to mitigate paravalvular leakage. In particular implementations, the prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved inner catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Application
    Filed: February 2, 2024
    Publication date: May 30, 2024
    Inventors: Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Publication number: 20240138979
    Abstract: This document provides devices and methods for the treatment of heart conditions. For example, this document provides prosthetic heart valves and transcatheter heart valve replacement methods. The prosthetic heart valves can be configured into a low-profile configuration for containment within a small diameter delivery sheath. The prosthetic heart valves include can include a valve member attached to a stent frame. In some embodiments, the valve member is a molded biomaterial with a novel shape and resulting performance characteristics. Localized protective covering members can be attached to the stent frame to prevent the valve member from contacting the stent frame as the valve member cycles between its open and closed configurations.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Inventors: Jason Quill, William Leon Neethling, Christopher B. Brodeur, Ramji Iyer, Kaitlyn Roth
  • Patent number: 11969188
    Abstract: Devices used to deploy transvascular medical device systems and methods for using such devices are described in this document. For example, this document describes dilating introducer devices used for the percutaneous vascular deployment of catheter-based medical devices such as structural heart medical devices. Such dilating introducer devices can facilitate the percutaneous vascular deployment of catheter-based medical devices without an additional introducer sheath.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 30, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Nathaniel Thomas Smith, Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Patent number: 11918460
    Abstract: Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valve includes structural features that securely anchor the prosthetic heart valve to the anatomy at the site of the native heart valve. Such structural features can provide robust migration resistance. In addition, the prosthetic heart valves can include structural features that improve sealing between the prosthetic valve and native valve anatomy to mitigate paravalvular leakage. In particular implementations, the prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved inner catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: March 5, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Gunnar Paul Askegaard, Lucas Tradd Schneider, Ramji Iyer
  • Patent number: 11918463
    Abstract: Some embodiments described herein include a heart valve replacement system that may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, a prosthetic heart valve of the system includes structural features that securely anchor the prosthetic heart valve to the site of the native heart valve. Such structural features can provide robust migration resistance. In particular implementations, the prosthetic heart valves occupy a smaller delivery profile, thereby facilitating a smaller delivery catheter for advancement to the heart.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: March 5, 2024
    Assignee: Laplace Interventional Inc.
    Inventors: Ramji Iyer, Lucas Tradd Schneider, Gunnar Paul Askegaard