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).
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Publication number: 20230047682Abstract: 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: ApplicationFiled: October 18, 2022Publication date: February 16, 2023Applicant: Boston Scientific Scimed, Inc.Inventors: David Deaton, Christopher K. Huynh, Michael Dotsey, Michael P. Wallace, Jayson Delos Santos, Gavin P. Wallace, Michael Hogendijk
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Publication number: 20230029447Abstract: Described herein are methods using mechanical inverting tube apparatuses to remove clot (e.g., thrombectomy), the apparatuses including an inversion support catheter having an expandable funnel-shaped distal end, and a flexible tube that can be continuously rolled over the funnel-shaped distal end and invert into the inner lumen of the inversion support catheter.Type: ApplicationFiled: October 7, 2019Publication date: January 26, 2023Applicant: STRYKER CORPORATIONInventors: Michael P. WALLACE, Clifford VAN, Roy LEGUIDLEGUID, E. Skott GREENHALGH, Winnie TANG
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Patent number: 11559320Abstract: Rolling tractor tube mechanical thrombectomy apparatuses that may be deployed from out of a catheter in situ are described herein. These apparatuses may be delivered out of a catheter from a collapsed delivery configuration within the catheter to a deployed configuration out of the catheter, in which the same catheter is re-inserted between a tubular tractor and an elongate puller. In particular, any of these methods and apparatuses may be adapted to work with a tractor tube having an open end that is biased open, including using an annular bias.Type: GrantFiled: December 20, 2019Date of Patent: January 24, 2023Assignee: STRYKER CORPORATIONInventors: Michael P. Wallace, E. Skott Greenhalgh
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Publication number: 20220401118Abstract: Apparatus and methods employing same for loading and inserting an inverting tube apparatus into a body lumen, such as a blood vessel, including introducers for inverting tube apparatuses. Also described herein are stacked tractor regions and methods of using them for removing larger and/or longer materials from the body lumen. Also described herein are methods and apparatuses for assisting in the manual operation the inverting tube apparatuses described herein, including grips.Type: ApplicationFiled: August 18, 2022Publication date: December 22, 2022Applicant: STRYKER CORPORATIONInventors: Roy Leguidleguid, Michael P. Wallace, Robert J. Garabedian, Jayson Delos Santos, Jason Iain Glithero
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Publication number: 20220387759Abstract: Apparatuses and methods for retaining a catheter are disclosed. In particular, described herein are apparatuses (e.g., introducer lock apparatuses, devices and systems including them) and methods for securing a catheter relative to an introducer sheath. In particular these apparatuses and method may secure an outer catheter of a mechanical thrombectomy apparatus to prevent the outer catheter from moving proximally when an inner member within the outer catheter is pulled proximally, applying a compression force that would otherwise drive the outer catheter proximally.Type: ApplicationFiled: June 2, 2022Publication date: December 8, 2022Applicant: Boston Scientific Scimed, Inc.Inventors: Michael Turovskiy, Jayson Delos Santos, Michael P. Wallace
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Publication number: 20220387053Abstract: Inverting tube apparatuses having an inverting tube (e.g., a knitted tube) that is configured to roll into an inversion support catheter and capture material from within a body lumen such as a blood vessel, in which the knitted tube is configured to prevent locking down onto the outside of the inversion support catheter. The inversion support catheter may include an expandable funnel at the distal end thereof having an interior profile that is adapted to capture and break apart hard material captured by the tractor so that it may be pulled into the inversion support catheter for removal.Type: ApplicationFiled: August 11, 2022Publication date: December 8, 2022Applicant: STRYKER CORPORATIONInventors: Michael P. Wallace, Jayson Delos Santos, Skott E. Greenhalgh, Winnie Tang, Clifford Van
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Patent number: 11504151Abstract: 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: GrantFiled: November 4, 2021Date of Patent: November 22, 2022Assignee: Boston Scientific Scimed, Inc.Inventors: David Deaton, Christopher K. Huynh, Michael Dotsey, Michael P. Wallace, Jayson Delos Santos, Gavin P. Wallace, Michael Hogendijk
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Patent number: 11497514Abstract: 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: GrantFiled: February 14, 2020Date of Patent: November 15, 2022Assignee: Stryker CorporationInventors: E. Skott Greenhalgh, Michael P. Wallace, Robert Garabedian
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Patent number: 11497512Abstract: 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: GrantFiled: December 31, 2019Date of Patent: November 15, 2022Assignee: STRYKER CORPORATIONInventors: Michael P. Wallace, Robert J. Garabedian, Gavin P. Wallace
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Publication number: 20220346815Abstract: 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: ApplicationFiled: July 18, 2022Publication date: November 3, 2022Applicant: STRYKER CORPORATIONInventors: Michael P. WALLACE, Skott E. GREENHALGH, Jayson Delos Santos
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Patent number: 11471183Abstract: 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: GrantFiled: November 4, 2021Date of Patent: October 18, 2022Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: David Deaton, Christopher K. Huynh, Michael Dotsey, Michael P. Wallace, Jayson Delos Santos, Gavin P. Wallace, Michael Hogendijk
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Patent number: 11471176Abstract: Methods and apparatuses for mechanically removing objects from a body. In particular, described herein are thrombectomy methods and mechanical thrombectomy apparatuses for removal of blood clots from within a lumen of a blood vessel.Type: GrantFiled: June 19, 2020Date of Patent: October 18, 2022Assignee: Stryker CorporationInventors: E. Skott Greenhalgh, Michael P. Wallace
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Publication number: 20220257279Abstract: 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: ApplicationFiled: November 4, 2021Publication date: August 18, 2022Inventors: David DEATON, Christopher K. HUYNH, Michael DOTSEY, Michael P. WALLACE, Jayson DELOS SANTOS, Gavin P. WALLACE, Michael HOGENDIJK
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Publication number: 20220257269Abstract: 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: ApplicationFiled: November 4, 2021Publication date: August 18, 2022Inventors: Michael P. WALLACE, Roy LEGUIDLEGUID, Jayson DELOS SANTOS, Winnie TANG, Michael TUROVSKIY, Robert GARABEDIAN
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Patent number: 11382647Abstract: Described herein are devices, systems and methods for treating target tissue in a patient's spine. In general, the methods include the steps of advancing a wire into the patient from a first location, through a neural foramen, and out of the patient from a second location; connecting a tissue modification device to the wire; positioning the tissue modification device through the neural foramen using the wire; modifying target tissue in the spine by moving the tissue modification device against the target tissue; and delivering an agent to modified target tissue, wherein the agent is configured to inhibit blood flow from the modified target tissue. In some embodiments, the step of modifying target tissue comprises removing target tissue located ventral to the superior articular process while avoiding non-target tissue located lateral to the superior articular process.Type: GrantFiled: June 27, 2018Date of Patent: July 12, 2022Assignee: Spinal Elements, Inc.Inventors: Michael P. Wallace, Robert Garabedian, Gregory B. Arcenio, Jeffery L. Bleich, Vahid Saadat, Winnie Chung
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Patent number: 11364043Abstract: The present invention provides methods and devices for treating endovascular disease. Vibrational energy is delivered to change compliance and increase permeability at the treatment area. To improve clinical outcomes, one or more therapeutic drugs may be delivered to the treatment area.Type: GrantFiled: September 2, 2016Date of Patent: June 21, 2022Assignee: CARDIOPROLIFIC INC.Inventor: Michael P Wallace
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Publication number: 20220175389Abstract: 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: ApplicationFiled: February 22, 2022Publication date: June 9, 2022Applicant: STRYKER EUROPEAN OPERATIONS HOLDINGS LLCInventors: Michael P. Wallace, E. Skott Greenhalgh
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Publication number: 20220133348Abstract: Mechanical atherectomy and/or thrombectomy devices configured to remove obstructions (e.g., plaque material) of different consistencies and/or sizes from blood vessels. The devices may include a tractor comprising a flexible tube of material that inverts as it rolls over itself while being drawn into the open distal end of a catheter in a conveyor-like motion. The flexible tube can include features that facilitate engagement with the obstruction, enhance smooth tractor motion and/or promote movement control of the device within the blood vessel.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: STRYKER CORPORATIONInventors: Michael P. Wallace, E. Skott Greenhalgh
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Patent number: 11266417Abstract: 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: GrantFiled: August 3, 2020Date of Patent: March 8, 2022Assignee: Stryker European Operations Holdings, LLCInventors: Michael P. Wallace, E. Skott Greenhalgh
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Patent number: 11253291Abstract: Mechanical atherectomy and/or thrombectomy devices configured to remove obstructions (e.g., plaque material) of different consistencies and/or sizes from blood vessels. The devices may include a tractor comprising a flexible tube of material that inverts as it rolls over itself while being drawn into the open distal end of a catheter in a conveyor-like motion. The flexible tube can include features that facilitate engagement with the obstruction, enhance smooth tractor motion and/or promote movement control of the device within the blood vessel.Type: GrantFiled: September 10, 2019Date of Patent: February 22, 2022Assignee: Stryker CorporationInventors: Michael P. Wallace, E. Skott Greenhalgh