Patents by Inventor Andrew Backus

Andrew Backus 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: 20260137515
    Abstract: Systems, devices, and methods for treating a diseased native valve in a patient, the system comprising a compressible and expandable frame structure and an anchor. The anchor comprises a wire having a free end and is configured to be fully advanced from an atrial side of a native valve in a patient into a ventricle of the heart and anchor the frame structure to the native valve when the frame structure is in the expanded configuration adjacent the native valve.
    Type: Application
    Filed: August 20, 2025
    Publication date: May 21, 2026
    Inventors: Claudio ARGENTO, Andrew BACKUS, Alice YANG
  • Patent number: 12558222
    Abstract: A delivery device for cardiac valve repair implants includes a delivery catheter, a sheath extending around the delivery catheter and including a distal opening, and a control arm assembly releasably coupleable to a cardiac valve repair implant and configured to selectively expand the frame of the cardiac valve repair implant. The sheath is translatable relative to the delivery catheter and control arm assembly from a distal position to a proximal position and the control arm assembly is configured to be coupled to the cardiac valve repair implant such that, with the sheath in the distal position, a central occluder of the cardiac valve repair implant protrudes from the distal opening and a frame of the cardiac valve repair implant is retained within the sheath. In the former configuration, the occluder may provide a temporary nosecone for the delivery device.
    Type: Grant
    Filed: June 20, 2025
    Date of Patent: February 24, 2026
    Inventors: Andrew Backus, Jeremy J. Boyette, Daniel T. Wallace, Juan Granada, Peter W. Gregg, Spencer C. Noe, Evelyn N. Haynes
  • Publication number: 20250312157
    Abstract: A delivery device for cardiac valve repair implants includes a delivery catheter, a sheath extending around the delivery catheter and including a distal opening, and a control arm assembly releasably coupleable to a cardiac valve repair implant and configured to selectively expand the frame of the cardiac valve repair implant. The sheath is translatable relative to the delivery catheter and control arm assembly from a distal position to a proximal position and the control arm assembly is configured to be coupled to the cardiac valve repair implant such that, with the sheath in the distal position, a central occluder of the cardiac valve repair implant protrudes from the distal opening and a frame of the cardiac valve repair implant is retained within the sheath. In the former configuration, the occluder may provide a temporary nosecone for the delivery device.
    Type: Application
    Filed: June 20, 2025
    Publication date: October 9, 2025
    Inventors: Andrew BACKUS, Jeremy J. BOYETTE, Daniel T. WALLACE, Juan GRANADA, Peter W. GREGG, Spencer C. NOE, Evelyn N. HAYNES
  • Patent number: 12419743
    Abstract: Systems, devices, and methods for treating a diseased native valve in a patient, the system comprising a compressible and expandable frame structure and an anchor. The anchor comprises a wire having a free end and is configured to be fully advanced from an atrial side of a native valve in a patient into a ventricle of the heart and anchor the frame structure to the native valve when the frame structure is in the expanded configuration adjacent the native valve.
    Type: Grant
    Filed: April 18, 2024
    Date of Patent: September 23, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Claudio Argento, Andrew Backus, Alice Yang
  • Patent number: 12403008
    Abstract: Medical devices that can be delivered in a first, flexible configuration and subsequently locked into a second, rigid configuration are provided. The device comprises an elongate body having a plurality of slots openings along a bending portion of the body. Using a tension member to shorten the distance between two points along the elongate body causes the device to curve. The device can be locked into the curved configuration.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 2, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Claudio Argento, Andrew Backus
  • Publication number: 20250268713
    Abstract: A delivery device for cardiac valve repair implants includes a delivery catheter, a sheath extending around the delivery catheter and including a distal opening, and a control arm assembly releasably coupleable to a cardiac valve repair implant and configured to selectively expand the frame of the cardiac valve repair implant. The sheath is translatable relative to the delivery catheter and control arm assembly from a distal position to a proximal position and the control arm assembly is configured to be coupled to the cardiac valve repair implant such that, with the sheath in the distal position, a central occluder of the cardiac valve repair implant protrudes from the distal opening and a frame of the cardiac valve repair implant is retained within the sheath. In the former configuration, the occluder may provide a temporary nosecone for the delivery device.
    Type: Application
    Filed: February 27, 2024
    Publication date: August 28, 2025
    Applicant: Versa Vascular Inc.
    Inventors: Jeremy J. BOYETTE, Daniel T. WALLACE, Juan GRANADA, Peter W. GREGG, Spencer C. NOE, Evelyn N. HAYNES, Andrew BACKUS
  • Publication number: 20250248847
    Abstract: Adjustable flow glaucoma shunts are disclosed herein. In one embodiment, for example, an adjustable flow shunt can include an outflow drainage tube having a proximal inflow region and a distal outflow region. The proximal inflow region can include aperture(s) defining a fluid inlet area positioned to allow fluid to flow therethrough. The shunt further comprises an inflow control assembly at the proximal inflow region. The inflow control assembly can include a control element configured to slidably engage the proximal inflow region and a spring element. The spring element is configured to be activated by non-invasive energy and, upon activation, slidably move the control element along the proximal inflow region such that (a) the one or more apertures are accessible and have a first fluid flow cross-section or (b) the one or more apertures are at least partially covered by the control element and have a second, different fluid-flow cross-section.
    Type: Application
    Filed: December 19, 2024
    Publication date: August 7, 2025
    Inventors: Colin Mixter, Claudio Argento, Andrew Backus, Tom Saul
  • Publication number: 20250248848
    Abstract: Systems and devices for facilitating the flow of fluid between a first body region and a second body region are disclosed herein. The devices generally include a drainage and/or shunting element having a lumen extending therethrough for draining or otherwise shunting fluid between the first and second body regions. Further, devices configured in accordance with the present technology may be selectively adjustable to control the amount of fluid flowing between the first and second body regions. In some embodiments, for example, the devices comprise an actuation assembly that drives movement of a flow control element to modulate flow resistance through the lumen, thereby increasing or decreasing the relative drainage rate of fluid between the first body region and the second body region.
    Type: Application
    Filed: December 19, 2024
    Publication date: August 7, 2025
    Inventors: Colin Mixter, Claudio Argento, Andrew Backus, Tom Saul
  • Patent number: 12329682
    Abstract: Adjustable flow glaucoma shunts are disclosed herein. In one embodiment, for example, a variable flow shunt for treatment of glaucoma in a human patient includes an elongated outflow tube having (a) a proximal inflow portion configured for placement within an anterior chamber in a region outside of an optical field of view of an eye of the patient, and (b) a distal outflow portion at a different location of the eye. The variable flow shunt further includes a flow control mechanism positioned along the outflow tube between the inflow portion and the outflow portion. The flow control mechanism comprises one or more control elements transformable between an open position that allows fluid to flow through the outflow tube and resistance positions that partially obstruct or attenuate fluid flow through the outflow tube. During operation, the control element(s) are movable between positions in response to non-invasive energy.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 17, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Claudio Argento, Colin Mixter, Andrew Backus
  • Patent number: 12290456
    Abstract: A heart valve prosthesis for replacing a diseased native valve in a patient. The valve prosthesis includes a compressible and expandable frame structure and an anchor connected to an outer periphery of the frame structure. The anchor comprises a helical wire having a free end. The valve may further include a valve segment mounted within the frame structure and expanded with the frame structure. The frame structure may be configured for receiving a valve segment.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 6, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Claudio Argento, Andrew Backus, Alice Yang
  • Publication number: 20250082470
    Abstract: Systems, devices, and methods for treating a diseased native valve in a patient, the system comprising a compressible and expandable frame structure and an anchor. The anchor comprises a wire having a free end and is configured to be fully advanced from an atrial side of a native valve in a patient into a ventricle of the heart and anchor the frame structure to the native valve when the frame structure is in the expanded configuration adjacent the native valve.
    Type: Application
    Filed: April 18, 2024
    Publication date: March 13, 2025
    Inventors: Claudio ARGENTO, Andrew BACKUS, Alice YANG
  • Patent number: 12226343
    Abstract: Systems and devices for facilitating the flow of fluid between a first body region and a second body region are disclosed herein. The devices generally include a drainage and/or shunting element having a lumen extending therethrough for draining or otherwise shunting fluid between the first and second body regions. Further, devices configured in accordance with the present technology may be selectively adjustable to control the amount of fluid flowing between the first and second body regions. In some embodiments, for example, the devices comprise an actuation assembly that drives movement of a flow control element to modulate flow resistance through the lumen, thereby increasing or decreasing the relative drainage rate of fluid between the first body region and the second body region.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: February 18, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Colin Mixter, Claudio Argento, Andrew Backus, Tom Saul
  • Patent number: 12220350
    Abstract: Adjustable flow glaucoma shunts are disclosed herein. In one embodiment, for example, an adjustable flow shunt can include an outflow drainage tube having a proximal inflow region and a distal outflow region. The proximal inflow region can include aperture(s) defining a fluid inlet area positioned to allow fluid to flow therethrough. The shunt further comprises an inflow control assembly at the proximal inflow region. The inflow control assembly can include a control element configured to slidably engage the proximal inflow region and a spring element. The spring element is configured to be activated by non-invasive energy and, upon activation, slidably move the control element along the proximal inflow region such that (a) the one or more apertures are accessible and have a first fluid flow cross-section or (b) the one or more apertures are at least partially covered by the control element and have a second, different fluid-flow cross-section.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: February 11, 2025
    Assignee: Shifamed Holdings, LLC
    Inventors: Colin Mixter, Claudio Argento, Andrew Backus, Tom Saul
  • Publication number: 20250000647
    Abstract: Systems and methods usable in delivering an anchoring or docking device to a native valve of a patient's heart. A distal region of a delivery catheter can be positioned in an atrium of the heart and a. distal tip can be positioned at or near a commissure of the native valve using a steerable sheath. The one or more bends can be generated and/or adjusted in a distal portion of the steerable sheath to manipulate the position of the distal tip of the delivery catheter.
    Type: Application
    Filed: September 1, 2022
    Publication date: January 2, 2025
    Inventors: Ryan William BOYD, Nicholas J. SPINELLI, Noah GOLDSMITH, Andrew BACKUS, Keke LEPULU
  • Publication number: 20240390144
    Abstract: Devices and systems for treatment of a diseased heart valve. The anchor may be deployed around chordae and/or leaflets of the diseased valve prior to delivery of a valve prosthesis into the annulus of the diseased valve and within the anchor. A tether may be configured to provide access to the anchor and/or adjust a position of the anchor with respect to the diseased valve. The tether may include a proximal region and a distal region, where the distal region may be releasably connectable to the anchor. The proximal and distal regions may have different properties, such as different flexibilities. In some cases, at least a portion of the tether may be configured to transition between a flexible and stiff state.
    Type: Application
    Filed: September 2, 2022
    Publication date: November 28, 2024
    Inventors: Jasper Ellington ADAMEK-BOWERS, Jordan SKARO, Jonathan Hwan OAKDEN, Uyenchi HA, Andrew BACKUS
  • Publication number: 20240374378
    Abstract: A delivery system for delivering a spiral anchor to a diseased native valve of a heart includes an anchor control catheter and an anchor guide extending from the anchor control catheter. The anchor guide includes a flexible configuration and a rigid configuration. The anchor guide in the rigid configuration includes a proximal section, a middle section, and a distal section. The proximal section includes a straight central axis and extends from the anchor control catheter, the middle section spirals axially and radially outwards from the central axis, and the distal section curves concentrically about the central axis in a plane that is perpendicular to the central axis.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Inventors: Jasper ADAMEK-BOWERS, Noah GOLDSMITH, Jordan SKARO, Jonathan OAKDEN, Claudio ARGENTO, Uyenchi HA, Andrew BACKUS
  • Publication number: 20240341951
    Abstract: A heart valve prosthesis for replacing a diseased native valve in a patient, the valve includes a compressible and expandable frame structure and an anchor connected to an outer periphery of the frame structure. The anchor comprises a free end and has a flat spiral shape. The valve may further include a valve segment mounted within the frame structure and expanded with the frame structure. The frame structure may be configured for receiving a valve segment.
    Type: Application
    Filed: October 25, 2023
    Publication date: October 17, 2024
    Inventors: Claudio ARGENTO, Andrew BACKUS, Alice YANG
  • Patent number: 12053371
    Abstract: A delivery system for delivering a spiral anchor to a diseased native valve of a heart includes an anchor control catheter and an anchor guide extending from the anchor control catheter. The anchor guide includes a flexible configuration and a rigid configuration. The anchor guide in the rigid configuration includes a proximal section, a middle section, and a distal section. The proximal section includes a straight central axis and extends from the anchor control catheter, the middle section spirals axially and radially outwards from the central axis, and the distal section curves concentrically about the central axis in a plane that is perpendicular to the central axis.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 6, 2024
    Assignee: Shifamed Holdings, LLC
    Inventors: Jasper Adamek-Bowers, Noah Goldsmith, Jordan Skaro, Jonathan Oakden, Claudio Argento, Uyenchi Ha, Andrew Backus
  • Patent number: 11986389
    Abstract: Systems, devices, and methods for treating a diseased native valve in a patient, the system comprising a compressible and expandable frame structure and an anchor. The anchor comprises a wire having a free end and is configured to be fully advanced from an atrial side of a native valve in a patient into a ventricle of the heart and anchor the frame structure to the native valve when the frame structure is in the expanded configuration adjacent the native valve.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: May 21, 2024
    Assignee: Shifamed Holdings, LLC
    Inventors: Claudio Argento, Andrew Backus, Alice Yang
  • Patent number: 11957583
    Abstract: A delivery device for cardiac valve repair implants includes a delivery catheter and an extension member protruding from a distal end of the delivery catheter. The delivery device further includes a control arm assembly having pairs of control arms. Each pair includes a proximal control arm drivable from a handle assembly of the delivery device and a distal arm coupled to a distal end of the proximal control arm and a distal end of the extension member. Proximally driving each of the proximal control arms of the control arm assembly results in expansion of the control arm assembly and corresponding expansion of a cardiac valve repair implant coupled to the control arm assembly.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: April 16, 2024
    Assignee: VERSA VASCULAR INC.
    Inventors: Jeremy J. Boyette, Daniel T. Wallace, Juan Granada, Peter W. Gregg, Spencer C. Noe, Evelyn N. Haynes, Andrew Backus