Patents by Inventor Michael P. Wallace

Michael P. 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: 20260096828
    Abstract: Methods and apparatuses for removing material (e.g., clot) from within a body, including inverting thrombectomy apparatuses. These methods and apparatuses may include methods and apparatuses for reusing portion of the devices, method and apparatuses for loading and reloading the inverting thrombectomy apparatuses, and methods and apparatuses for improving and enhancing the ability of the inverting thrombectomy apparatuses to remove clot. In particular, described herein are expandable scraper devices that may be used in conjunction with the inverting thrombectomy apparatuses descried herein, or on their own.
    Type: Application
    Filed: December 2, 2025
    Publication date: April 9, 2026
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: David Deaton, Christopher K. Huynh, Michael Dotsey, Michael P. Wallace, Jayson Delos Santos, Gavin P. Wallace, Michael Hogendijk
  • Patent number: 12588918
    Abstract: Inverting tube apparatuses and methods of using same for removing large amounts of material from a body lumen. The apparatuses and methods described herein may use a depot for holding, in a compressed configuration, a length of the flexible tube configured to invert over the distal end of an inversion support catheter to capture material within a body lumen. The depot is configured to facilitate the release of the flexible tube with a low release force, and in a manner that prevents snagging or binding of the flexible tube either on the body of the catheter or when rolling and inverting into the inversion support catheter.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: March 31, 2026
    Assignee: STRYKER CORPORATION
    Inventors: Michael P. Wallace, E. Skott Greenhalgh, Jayson Delos Santos
  • Patent number: 12484920
    Abstract: Methods and apparatuses for removing material (e.g., clot) from within a body, including inverting thrombectomy apparatuses. These methods and apparatuses may include methods and apparatuses for reusing portion of the devices, method and apparatuses for loading and reloading the inverting thrombectomy apparatuses, and methods and apparatuses for improving and enhancing the ability of the inverting thrombectomy apparatuses to remove clot. In particular, described herein are expandable scraper devices that may be used in conjunction with the inverting thrombectomy apparatuses descried herein, or on their own.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: December 2, 2025
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: David Deaton, Christopher K. Huynh, Michael Dotsey, Michael P. Wallace, Jayson Delos Santos, Gavin P. Wallace, Michael Hogendijk
  • Patent number: 12478770
    Abstract: A micropuncture kit for direct access of a surgically exposed vessel using direct visual guidance includes a micropuncture access needle having a proximal hub coupled to an elongate shaft defining an inner lumen and a visible depth indicator positioned on the elongate shaft a distance away from a distal tip of the elongate shaft. The kit includes an access guidewire sized to be received through the inner lumen of the micropuncture access needle and a microaccess cannula having an elongate body defining an inner lumen and a plurality of visible depth indicators formed on the elongate body. The guidewire includes a distal tip and at least one visible depth indicator positioned on the access guidewire a distance away from the distal tip of the guidewire. Each of the plurality of visible depth indicators identifies a distance from a distal tip of the cannula. Related systems, devices and methods are provided.
    Type: Grant
    Filed: June 28, 2024
    Date of Patent: November 25, 2025
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Stewart M. Kume, Michael Chang, Michael P. Wallace
  • Patent number: 12383275
    Abstract: Vaso-occlusive apparatuses, including implants, and methods of using them to treat aneurysms. The vaso-occlusive implants described herein include one or more soft and expandable braided member coupled to a pushable member such as a coil that maybe inserted and retrieved from within an aneurism using a delivery catheter as well as a friction element between the soft braided member and the coil. The friction element allows the relatively soft and elongate implant to be pushed out of a cannula without binding up within the cannula.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: August 12, 2025
    Assignee: Stryker European Operations Holdings, LLC
    Inventors: Michael P. Wallace, E. Skott Greenhalgh
  • Publication number: 20250177114
    Abstract: Devices and methods are configured to allow transcarotid or subclavian access via the common carotid artery to the native aortic valve, and implantation of a prosthetic aortic valve into the heart. The devices and methods also provide means for embolic protection during such an endovascular aortic valve implantation procedure.
    Type: Application
    Filed: February 10, 2025
    Publication date: June 5, 2025
    Applicant: Silk Road Medical, Inc.
    Inventors: Erica J. Rogers, Michael P. Wallace, Sumaira Macdonald, Michi E. Garrison
  • Patent number: 12295601
    Abstract: Mechanical thrombectomy apparatuses, and particularly knitted rolling tube mechanical thrombectomy apparatuses configured to have improved tracking for delivery through tortious vessels are described herein. Also described herein are methods of removing clots using a mechanical thrombectomy apparatuses in which the clot is larger than the tractor portion of the mechanical thrombectomy apparatus.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: May 13, 2025
    Assignee: Stryker Corporation
    Inventors: Michael P. Wallace, Robert Garabedian, Roy Leguidleguid, E. Skott Greenhalgh
  • Patent number: 12285578
    Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.
    Type: Grant
    Filed: August 11, 2023
    Date of Patent: April 29, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno
  • Patent number: 12220305
    Abstract: Devices and methods are configured to allow transcarotid or subclavian access via the common carotid artery to the native aortic valve, and implantation of a prosthetic aortic valve into the heart. The devices and methods also provide means for embolic protection during such an endovascular aortic valve implantation procedure.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: February 11, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Erica J. Rogers, Michael P. Wallace, Sumaira Macdonald, Michi E. Garrison
  • Publication number: 20240424266
    Abstract: A micropuncture kit for direct access of a surgically exposed vessel using direct visual guidance includes a micropuncture access needle having a proximal hub coupled to an elongate shaft defining an inner lumen and a visible depth indicator positioned on the elongate shaft a distance away from a distal tip of the elongate shaft. The kit includes an access guidewire sized to be received through the inner lumen of the micropuncture access needle and a microaccess cannula having an elongate body defining an inner lumen and a plurality of visible depth indicators formed on the elongate body. The guidewire includes a distal tip and at least one visible depth indicator positioned on the access guidewire a distance away from the distal tip of the guidewire. Each of the plurality of visible depth indicators identifies a distance from a distal tip of the cannula. Related systems, devices and methods are provided.
    Type: Application
    Filed: June 28, 2024
    Publication date: December 26, 2024
    Inventors: Stewart M. Kume, Michael Chang, Michael P. Wallace
  • Publication number: 20240415699
    Abstract: Methods and apparatuses for cleaning and/or drying a subject's ears and/or nose may include an inverting tubular swab region. These apparatuses may remove debris, such as ear wax & skin debris from the ear canal. These apparatuses are safer than traditional cotton swab. Also described herein are apparatuses configured for use in the nose, which may remove mucus (e.g., snot) from the nasal and sinus regions. These apparatuses may be configured for use with infants and toddlers as an alternative to air aspiration bulb/tool. Also described herein are methods of using any of these apparatuses as well as methods of making and packaging them.
    Type: Application
    Filed: August 2, 2024
    Publication date: December 19, 2024
    Inventors: Michael P. WALLACE, Michael A. DOTSEY, Andrew MILLER
  • Publication number: 20240398432
    Abstract: Mechanical thrombectomy apparatuses including an inverting, rolling conveyor region (“tractor”) at the distal end that are configured to grab and remove thrombus material. In particular, described herein are mechanical thrombectomy apparatuses that are adapted to prevent premature deployment of the tractor, e.g., by including a tractor hold (e.g., a housing, a lock, a clamp, etc.) or the like to secure the outer end of the tractor against and/or relative to the elongate inversion support.
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Applicant: STRYKER CORPORATION
    Inventors: E. Skott Greenhalgh, Michael P. Wallace, Robert Garabedian
  • Publication number: 20240374273
    Abstract: A mechanical thrombectomy apparatus for removing a clot from a vessel includes an elongate inversion support catheter having a distal end opening, an elongate puller extending within the support catheter, and a knitted tractor tube extending over an outer surface of the support catheter, inverting into the distal end opening of the support catheter, and attached to the elongate puller at a first end within the support catheter, wherein the portion of the knitted tractor tube extending over the support catheter comprises a wire forming a helical spiral of alternating teardrop shaped-links each having a rounded apex, wherein each link is connected to two adjacent links so that the apex of each link is on an outward-facing surface of the tractor tube, wherein the links flare outward from an outer wall of the support catheter when the puller is pulled proximally within the support catheter.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Applicant: STRYKER CORPORATION
    Inventors: Michael P. Wallace, Robert J. Garabedian, Gavin P. Wallace
  • Patent number: 12082992
    Abstract: Methods and apparatuses for cleaning and/or drying a subject's ears and/or nose may include an inverting tubular swab region. These apparatuses may remove debris, such as ear wax & skin debris from the ear canal. These apparatuses are safer than traditional cotton swab. Also described herein are apparatuses configured for use in the nose, which may remove mucus (e.g., snot) from the nasal and sinus regions. These apparatuses may be configured for use with infants and toddlers as an alternative to air aspiration bulb/tool. Also described herein are methods of using any of these apparatuses as well as methods of making and packaging them.
    Type: Grant
    Filed: October 3, 2023
    Date of Patent: September 10, 2024
    Assignee: 880 Medical LLC
    Inventors: Michael P. Wallace, Michael A. Dotsey, Andrew Miller
  • Patent number: 12059165
    Abstract: Mechanical thrombectomy apparatuses including an inverting, rolling conveyor region (“tractor”) at the distal end that are configured to grab and remove thrombus material. In particular, described herein are mechanical thrombectomy apparatuses that are adapted to prevent premature deployment of the tractor, e.g., by including a tractor hold (e.g., a housing, a lock, a clamp, etc.) or the like to secure the outer end of the tractor against and/or relative to the elongate inversion support.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: August 13, 2024
    Assignee: STRYKER CORPORATION
    Inventors: E. Skott Greenhalgh, Michael P. Wallace, Robert J. Garabedian
  • Publication number: 20240260980
    Abstract: Mechanical thrombectomy apparatuses (devices, systems, etc.) and methods for deploying and/or positioning them within a vessel and/or using them and/or removing a thrombus, e.g., clot, from within a vessel using them.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 8, 2024
    Applicant: STRYKER CORPORATION
    Inventors: Michael P. Wallace, E. Skott Greenhalgh, Robert Garabedian
  • Patent number: 12053604
    Abstract: A micropuncture kit for direct access of a surgically exposed vessel using direct visual guidance includes a micropuncture access needle having a proximal hub coupled to an elongate shaft defining an inner lumen and a visible depth indicator positioned on the elongate shaft a distance away from a distal tip of the elongate shaft. The kit includes an access guidewire sized to be received through the inner lumen of the micropuncture access needle and a microaccess cannula having an elongate body defining an inner lumen and a plurality of visible depth indicators formed on the elongate body. The guidewire includes a distal tip and at least one visible depth indicator positioned on the access guidewire a distance away from the distal tip of the guidewire. Each of the plurality of visible depth indicators identifies a distance from a distal tip of the cannula. Related systems, devices and methods are provided.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: August 6, 2024
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Michael Chang, Michael P. Wallace
  • Patent number: 12042161
    Abstract: A mechanical thrombectomy apparatus for removing a clot from a vessel includes an elongate inversion support catheter having a distal end opening, an elongate puller extending within the support catheter, and a knitted tractor tube extending over an outer surface of the support catheter, inverting into the distal end opening of the support catheter, and attached to the elongate puller at a first end within the support catheter, wherein the portion of the knitted tractor tube extending over the support catheter comprises a wire forming a helical spiral of alternating teardrop shaped-links each having a rounded apex, wherein each link is connected to two adjacent links so that the apex of each link is on an outward-facing surface of the tractor tube, wherein the links flare outward from an outer wall of the support catheter when the puller is pulled proximally within the support catheter.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: July 23, 2024
    Assignee: STRYKER CORPORATION
    Inventors: Michael P. Wallace, Robert J. Garabedian, Gavin P. Wallace
  • Patent number: 11986196
    Abstract: Methods and apparatuses for removing material (e.g., clot) from within a body, including inverting thrombectomy apparatuses. These methods and apparatuses may include methods and apparatuses for reusing portion of the devices, method and apparatuses for loading and reloading the inverting thrombectomy apparatuses, and methods and apparatuses for improving and enhancing the ability of the inverting thrombectomy apparatuses to remove clot.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: May 21, 2024
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Michael P. Wallace, Roy Leguidleguid, Jayson Delos Santos, Winnie Tang, Michael Turovskiy, Robert Garabedian
  • Publication number: 20240149028
    Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.
    Type: Application
    Filed: August 11, 2023
    Publication date: May 9, 2024
    Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno