Patents by Inventor Dan Wallace

Dan Wallace 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: 20250228664
    Abstract: A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.
    Type: Application
    Filed: April 2, 2025
    Publication date: July 17, 2025
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Spencer Noe, Dan Wallace, Jonathan Oakden
  • Publication number: 20250228679
    Abstract: Systems and methods for preparing and loading a collapsible cardiac implant into a delivery system is provided, and includes a stent crimper with an alignment mechanism and a transfer tube to reduce the risk of damage to the delivery system during loading.
    Type: Application
    Filed: January 16, 2025
    Publication date: July 17, 2025
    Inventors: Peter Gregg, Spencer Noe, Ian Mahaffey, Evelyn Haynes, Dan Wallace, Bruce Stokes, Mitasha Malhan
  • Publication number: 20250228663
    Abstract: A replacement heart valve comprises one or more stent frame features, including inset barbs, ring attachment structures or attachment tabs.
    Type: Application
    Filed: January 16, 2025
    Publication date: July 17, 2025
    Inventors: Evelyn Haynes, Ian Mahaffey, Spencer Noe, Dan Wallace, Peter Gregg
  • Publication number: 20250221819
    Abstract: Prosthetic mitral valves and their methods of manufacture and use.
    Type: Application
    Filed: March 24, 2025
    Publication date: July 10, 2025
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Dan Wallace, Aaron Grogan, Spencer Noe, Peter Gregg
  • Patent number: 12318288
    Abstract: An intravascular device delivery system has an elongated member, a guidewire receiving member, and a distal cap longitudinally fixed to a guidewire receiving member. The distal cap includes an insert having an elongate member, a rim member radially separated from the elongate member, and a wall member supporting the rim member, the wall member being disposed between the rim member and the elongate member.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 3, 2025
    Assignees: Cephea Valve Technologies, Inc., EVALVE, INC.
    Inventors: Randolf Von Oepen, Timothy C. Reynolds, Evelyn N. Haynes, Sean A McNiven, Dan Wallace, Peter Gregg, John Hill, David Tung
  • Patent number: 12290437
    Abstract: A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: May 6, 2025
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Spencer Noe, Dan Wallace, Jonathan Oakden
  • Publication number: 20250099244
    Abstract: A method of delivering a prosthetic mitral valve includes delivering a distal anchor from a delivery sheath such that the distal anchor self-expands inside a first heart chamber on a first side of the mitral valve annulus, pulling proximally on the distal anchor such that the distal anchor self-aligns within the mitral valve annulus and the distal anchor rests against tissue of the ventricular heart chamber, and delivering a proximal anchor from the delivery sheath to a second heart chamber on a second side of the mitral valve annulus such that the proximal anchor self-expands and moves towards the distal anchor to rest against tissue of the second heart chamber. The self-expansion of the proximal anchor captures tissue of the mitral valve annulus therebetween.
    Type: Application
    Filed: December 8, 2024
    Publication date: March 27, 2025
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Juan F. Granada, Gary Erzberger, Michael P. Corcoran, Dan Wallace, Matteo Montorfano, Alaide Chieffo
  • Publication number: 20250017730
    Abstract: A delivery device includes a handle, a central elongate member extending from the handle, a sheath configured to slide over and relative to the central elongate member, a distal tether retainer at a distal end of the central elongate member, a proximal tether restraining mechanism positioned along the central elongate member distal of the handle and proximal of the distal tether retainer, and a plurality of tethers. The tethers are configured to extend from the proximal tether restraining mechanism to the distal tether retainer.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Peter Gregg, Dan Wallace, Evelyn Haynes, Aaron Grogan, Crissly Crisostomo, Max Pfeifle
  • Patent number: 12193934
    Abstract: A method of delivering a prosthetic mitral valve includes delivering a distal anchor from a delivery sheath such that the distal anchor self-expands inside a first heart chamber on a first side of the mitral valve annulus, pulling proximally on the distal anchor such that the distal anchor self-aligns within the mitral valve annulus and the distal anchor rests against tissue of the ventricular heart chamber, and delivering a proximal anchor from the delivery sheath to a second heart chamber on a second side of the mitral valve annulus such that the proximal anchor self-expands and moves towards the distal anchor to rest against tissue of the second heart chamber. The self-expansion of the proximal anchor captures tissue of the mitral valve annulus therebetween.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: January 14, 2025
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Juan F. Granada, Gary Erzberger, Michael P. Corcoran, Dan Wallace, Matteo Montorfano, Alaide Chieffo
  • Patent number: 12133798
    Abstract: A delivery device includes a handle, a central elongate member extending from the handle, a sheath configured to slide over and relative to the central elongate member, a distal tether retainer at a distal end of the central elongate member, a proximal tether restraining mechanism positioned along the central elongate member distal of the handle and proximal of the distal tether retainer, and a plurality of tethers. The tethers are configured to extend from the proximal tether restraining mechanism to the distal tether retainer.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: November 5, 2024
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Peter Gregg, Dan Wallace, Evelyn Haynes, Aaron Grogan, Crissly Crisostomo, Max Pfeifle
  • Patent number: 11826251
    Abstract: A prosthetic valve delivery device includes a handle and a delivery catheter. The delivery catheter includes a central elongate member extending from the handle and a proximal sheath configured to slide over and relative to the central elongate member. The proximal sheath is connected to a hollow helical strand, and the hollow helical strand is configured to rotate to retract the proximal sheath and expose at least a portion of the prosthetic valve.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 28, 2023
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Peter Gregg, Evelyn N. Haynes, Dan Wallace, Aaron Grogan
  • Patent number: 11786373
    Abstract: A delivery device includes a central elongate structure including an annular member at the distal end, a sheath, a plurality of tethers extending through the central elongate structure, a handle, and a control on the handle. The handle is connected to the elongate structure, the sheath, and the plurality of tethers. The control is configured to move the sheath proximally and distally over the central elongate structure. The annular member includes a plurality of pockets extending radially therearound. Each tether includes a feature on a distal end thereof configured to fit within a pocket of the plurality of pockets to hold the tethers in place.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: October 17, 2023
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Peter Gregg, Dan Wallace, Aaron Grogan, Crissly Crisostomo
  • Patent number: 11648112
    Abstract: Systems and methods for delivery a medical device to a heart valve annulus are disclosed. A method of delivering a medical device to a heart valve annulus includes: (1) aligning a first imaging sensor such that a view of the first imaging sensor is along a primary plane of the heart valve annulus; (2) aligning a second imaging sensor such that a view of the second imaging sensor is along a longitudinal axis of the heart valve annulus; (3) attaching a delivery system holding the medical device to a delivery arm; (4) adjusting the delivery arm to set an angle of the delivery system perpendicular to the primary plane using images from the first imaging sensor; (5) adjusting the delivery arm to center the delivery device in the heart valve annulus using images from the second imaging sensor; and (6) deploying the medical device into the heart valve annulus.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 16, 2023
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Dan Wallace, Aaron Grogan
  • Patent number: 11633278
    Abstract: A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: April 25, 2023
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Spencer Noe, Dan Wallace, Jonathan Oakden
  • Patent number: 11617646
    Abstract: A prosthetic mitral valve includes an anchor assembly, an annular strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The annular strut frame is disposed radially within the anchor assembly. An atrial end of the annular strut frame is attached to the anchor assembly such that a ventricular end of the annular strut frame is spaced away from the anchor assembly.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: April 4, 2023
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Dan Wallace, Spencer Noe, Peter Gregg, Juan F. Granada
  • Publication number: 20230034126
    Abstract: A method of delivering a prosthetic mitral valve includes delivering a distal anchor from a delivery sheath such that the distal anchor self-expands inside a first heart chamber on a first side of the mitral valve annulus, pulling proximally on the distal anchor such that the distal anchor self-aligns within the mitral valve annulus and the distal anchor rests against tissue of the ventricular heart chamber, and delivering a proximal anchor from the delivery sheath to a second heart chamber on a second side of the mitral valve annulus such that the proximal anchor self-expands and moves towards the distal anchor to rest against tissue of the second heart chamber. The self-expansion of the proximal anchor captures tissue of the mitral valve annulus therebetween.
    Type: Application
    Filed: October 7, 2022
    Publication date: February 2, 2023
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Juan F. Granada, Gary Erzberger, Michael P. Corcoran, Dan Wallace, Matteo Montorfano, Alaide Chieffo
  • Patent number: 11510780
    Abstract: A method of delivering a prosthetic mitral valve includes delivering a distal anchor from a delivery sheath such that the distal anchor self-expands inside a first heart chamber on a first side of the mitral valve annulus, pulling proximally on the distal anchor such that the distal anchor self-aligns within the mitral valve annulus and the distal anchor rests against tissue of the ventricular heart chamber, and delivering a proximal anchor from the delivery sheath to a second heart chamber on a second side of the mitral valve annulus such that the proximal anchor self-expands and moves towards the distal anchor to rest against tissue of the second heart chamber. The self-expansion of the proximal anchor captures tissue of the mitral valve annulus therebetween.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: November 29, 2022
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Juan F. Granada, Gary Erzberger, Michael P. Corcoran, Dan Wallace, Matteo Montorfano, Alaide Chieffo
  • Patent number: 11331187
    Abstract: A delivery device includes a central elongate structure, a sheath, a plurality of tethers extending through the central elongate structure configured to hold a cardiac valve, a cutting mechanism, a handle, and a control. The sheath is configured to slide over the central elongate structure. The cutting mechanism is configured to cut the tethers upon activation to release the cardiac valve. The handle is connected to the central elongate structure. The control on the handle is configured to activate the cutting mechanism.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: May 17, 2022
    Assignee: Cephea Valve Technologies, Inc.
    Inventors: Dan Wallace, Peter Gregg, Evelyn Haynes, Aaron Grogan, Crissly Crisostomo
  • Publication number: 20220071765
    Abstract: A delivery device includes a handle, a central elongate member extending from the handle, a sheath configured to slide over and relative to the central elongate member, a distal tether retainer at a distal end of the central elongate member, a proximal tether restraining mechanism positioned along the central elongate member distal of the handle and proximal of the distal tether retainer, and a plurality of tethers. The tethers are configured to extend from the proximal tether restraining mechanism to the distal tether retainer.
    Type: Application
    Filed: October 19, 2021
    Publication date: March 10, 2022
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Peter Gregg, Dan Wallace, Evelyn Haynes, Aaron Grogan, Crissly Crisostomo, Max Pfeifle
  • Publication number: 20220015895
    Abstract: Prosthetic mitral valves and their methods of manufacture and use.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Applicant: Cephea Valve Technologies, Inc.
    Inventors: Dan Wallace, Aaron Grogan, Spencer Noe, Peter Gregg