Patents by Inventor John Wainwright
John Wainwright 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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Patent number: 11903850Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.Type: GrantFiled: August 9, 2022Date of Patent: February 20, 2024Assignee: Covidien LPInventors: Xiaodong Ma, Min-Shyan Sheu, Lincoln Eramo, John Wainwright, Junwei Li
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Publication number: 20240033281Abstract: A method for treating an aneurysm in accordance with a particular embodiment of the present technology includes intravascularly delivering a mixture including a biopolymer (e.g., chitosan) and a chemical crosslinking agent (e.g., genipin) to an aneurysm. The method further includes mixing the biopolymer and the chemical crosslinking agent to initiate chemical crosslinking of the biopolymer. The mixture is delivered to the aneurysm via a lumen and an exit port of a catheter while the chemical crosslinking is ongoing. The mixture exits the catheter as a single cohesive strand that at least partially agglomerates to form a mass occupying at least 75% of a total internal volume of the aneurysm. During delivery of the mixture, the method includes expanding a tubular flow diverter to reinforce a neck of the aneurysm.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Inventors: Junwei Li, Gaurav Girdhar, John Wainwright, Yves Bayon, Ariana Pagani
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Patent number: 11813282Abstract: A method for treating an aneurysm in accordance with a particular embodiment of the present technology includes intravascularly delivering a mixture including a biopolymer (e.g., chitosan) and a chemical crosslinking agent (e.g., genipin) to an aneurysm. The method further includes mixing the biopolymer and the chemical crosslinking agent to initiate chemical crosslinking of the biopolymer. The mixture is delivered to the aneurysm via a lumen and an exit port of a catheter while the chemical crosslinking is ongoing. The mixture exits the catheter as a single cohesive strand that at least partially agglomerates to form a mass occupying at least 75% of a total internal volume of the aneurysm. During delivery of the mixture, the method includes expanding a tubular flow diverter to reinforce a neck of the aneurysm.Type: GrantFiled: October 31, 2019Date of Patent: November 14, 2023Assignee: COVIDIEN LPInventors: Junwei Li, Gaurav Girdhar, John Wainwright, Yves Bayon, Ariana Pagani
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Publication number: 20230294223Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.Type: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Inventors: Junwei Li, John Wainwright, Gaurav Girdhar, Stephen Sosnowski
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Publication number: 20230277187Abstract: Expandable devices for occluding bifurcation aneurysms are disclosed herein. Several of the embodiments are directed towards an expandable device comprising a mesh configured to be deployed at a treatment site including blood vessel bifurcation of a human patient so that the mesh extends across a neck of an aneurysm and prevents or limits blood flow through the mesh and into the aneurysm. The mesh can comprise one or more circumferentially discontinuous portions so that, when the device is deployed at the treatment site, the device does not substantially impede flow from a parent blood vessel to two or more branching blood vessels. Systems and methods for delivering an expandable device of the present technology are also disclosed herein.Type: ApplicationFiled: March 2, 2022Publication date: September 7, 2023Inventors: Mark Philip Ashby, Ashok Nageswaran, Eric Mintz, Gaurav Girdhar, Ujwal Ramesh Jalgaonkar, John Wainwright
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Publication number: 20230248377Abstract: An aspiration thrombectomy system is described with an aspiration catheter assembly having fittings interfaced with conduit and a pump. The aspiration catheter assembly can include a guide catheter and an aspiration catheter. The aspiration catheter can be introduced with a proximal end of a tubular element placed within the guide catheter to form a suction lumen extending through the aspiration catheter and a portion of the guide catheter. A connection section forming an effective seal between the aspiration catheter and the inner wall of the guide catheter can be fixed or extendable through actuation or release of a self-extending structure. The aspiration catheter can be positioned into an artery with a distal opening positioned proximal to a clot. The fittings can include a filter for removing thrombus from the aspiration flow. The fittings and/or the tubing adjacent the pump can include a flow meter for measuring flow to the pump.Type: ApplicationFiled: February 9, 2022Publication date: August 10, 2023Inventors: John Wainwright, Mayra Contreras, Matthew F. Ogle
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Publication number: 20230211134Abstract: Balloon/infusion catheters comprise internal corewires within a single lumen structure in which the corewire can slide relative to the catheter tube within limits, and the balloon is attached to the catheter tube on one end and to the sliding corewire on the other end. The lumen provides fluid to inflate the balloon and to infuse fluid into the vessel proximal to the balloon. The infusion ports can have a polymer valve to limit infusion to lumen pressures at which the balloon is appropriately inflated. The balloon/infusion catheter can have an integral flow meter near its proximal end. Corresponding methods for use of the balloon/infusion catheter are described, such as for the delivery of hydraulic forces when used in conjunction with an aspiration catheter.Type: ApplicationFiled: December 30, 2021Publication date: July 6, 2023Inventors: Matthew F. Ogle, Richard C. Mattison, John Wainwright
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Patent number: 11690741Abstract: Vascular remodeling devices can include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.Type: GrantFiled: September 16, 2020Date of Patent: July 4, 2023Assignee: COVIDIEN LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Patent number: 11685007Abstract: Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.Type: GrantFiled: November 3, 2020Date of Patent: June 27, 2023Assignee: COVIDIEN LPInventors: Junwei Li, John Wainwright, Gaurav Girdhar, Stephen Sosnowski
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Publication number: 20230149021Abstract: Retrieval of material from vessel lumens can be improved by use of a distal element comprising an expandable mesh. a treatment device includes an elongated member having a proximal portion and a distal portion configured to be positioned within a blood vessel at a treatment site at or near a thrombus. A distal element comprising a plurality of woven filaments defining a shaft at a proximal portion and a body distal of the shaft is coupled to the distal portion of the elongated member via a connection assembly. In an expanded state, at least a portion of the distal element is configured to be in apposition with the blood vessel wall at the treatment site to anchor or stabilize the elongated member with respect to the blood vessel. The distal element can be electrically coupled to an extracorporeal current generator.Type: ApplicationFiled: November 18, 2021Publication date: May 18, 2023Inventors: John Wainwright, Hoai Nguyen, James Davidson
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Patent number: 11633193Abstract: Expandable devices are disclosed herein. Several of the embodiments are directed towards an expandable device comprising a mesh configured to be expanded at a blood vessel bifurcation of a human patient. The mesh may comprise a tubular body portion and one or more circumferentially discontinuous articulating portions. The mesh may be expanded such that the one or more articulating portions are positioned at an angle to the tubular body portion.Type: GrantFiled: September 3, 2020Date of Patent: April 25, 2023Assignee: COVIDIEN LPInventors: Ujwal Jalgaonkar, Eric Mintz, Gaurav Girdhar, John Wainwright, Ashok Nageswaran, Minh Dinh
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Publication number: 20230112674Abstract: An exploratory language-learning system based on ML (Machine Learning), NLP (Natural Language Processing) and a pattern-based reference library including: input means for collecting or inputting instances generated in the language; a morphological analyzer for generating linguistic units, words, stems, affixes, and phonetic symbol input characters and part-of-speech in the sentence input through the input means; a reference library indexed by morphological and syntactic patterns; a lexical pattern matcher that processes the contents processed by the word type analyzer with reference to a reference library; a phrase-structure parser for recognizing larger phrases and clause structures by processing the phrase structure processed by the vocabulary pattern matcher; a library pattern-matcher that processes the syntax structure processed through the phrase-structure parser with reference to the reference library, and a reference explorer that allows users to view and explore related reference materials.Type: ApplicationFiled: March 8, 2021Publication date: April 13, 2023Inventors: Hwan Soo YOO, John WAINWRIGHT
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Publication number: 20230113257Abstract: Retrieval of material from vessel lumens can be improved by use of a distal element comprising an expandable mesh. a treatment device includes an elongated member having a proximal portion and a distal portion configured to be positioned within a blood vessel at a treatment site at or near a thrombus. A distal element comprising an expandable mesh is coupled to the distal portion of the elongated member via a connection assembly. In an expanded state, at least a portion of the mesh is configured to be in apposition with the blood vessel wall at the treatment site to anchor or stabilize the elongated member with respect to the blood vessel. The distal element can be electrically coupled to an extracorporeal current generator.Type: ApplicationFiled: November 7, 2022Publication date: April 13, 2023Inventors: Hoai Nguyen, Gaurav Girdhar, Andyanhdzung Huynh, Ujwal Jalgaonkar, Eric Mintz, Ashok Nageswaran, John Wainwright
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Publication number: 20230036800Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.Type: ApplicationFiled: August 9, 2022Publication date: February 2, 2023Inventors: Xiaodong Ma, Min-Shyan Sheu, Lincoln Eramo, John Wainwright, Junwei Li
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Patent number: 11523838Abstract: Retrieval of material from vessel lumens can be improved by use of a distal element comprising an expandable mesh, a treatment device includes an elongated member having a proximal portion and a distal portion configured to be positioned within a blood vessel at a treatment site at or near a thrombus. A distal element comprising an expandable mesh is coupled to the distal portion of the elongated member via a connection assembly. In an expanded state, at least a portion of the mesh is configured to be in apposition with the blood vessel wall at the treatment site to anchor or stabilize the elongated member with respect to the blood vessel. The distal element can be electrically coupled to an extracorporeal current generator.Type: GrantFiled: June 12, 2019Date of Patent: December 13, 2022Assignee: COVIDIEN LPInventors: Hoai Nguyen, Gaurav Girdhar, Andyanhdzung Huynh, Ujwal Jalgaonkar, Eric Mintz, Ashok Nageswaran, John Wainwright
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Publication number: 20220296174Abstract: A system comprises electrocardiogram sensing, glucose sensing circuitry, and processing circuitry. The sensing circuitry is configured to sense an electrocardiogram of a patient. The glucose sensing circuitry is configured to sense glucose levels of the patient. The processing circuitry configured to detect atrial fibrillation of the patient during a time unit based on the electrocardiogram of the patient, determine a first metric, wherein the first metric is associated with atrial fibrillation the patient experiences during the time unit, determine a second metric, wherein the second metric is associated with glucose levels of the patient during the time unit, and generate a health metric, wherein the health metric is determined based on the first and second metrics.Type: ApplicationFiled: March 17, 2021Publication date: September 22, 2022Inventors: Patrick W. Kinzie, David L. Probst, Mohsen Askarinya, Aaron Gilletti, Richard J. O'Brien, Mark J. Phelps, Randal C. Schulhauser, John Wainwright
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Patent number: 11406514Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.Type: GrantFiled: November 16, 2020Date of Patent: August 9, 2022Assignee: COVIDIEN LPInventors: Xiaodong Ma, Min-Shyan Sheu, Lincoln Eramo, John Wainwright, Junwei Li
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Patent number: 11376141Abstract: Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.Type: GrantFiled: June 26, 2020Date of Patent: July 5, 2022Assignee: COVIDIEN LPInventors: John Wainwright, Todd Mendelson, Kurt Haggstrom, Masoud Molaei, Victoria Schuman, Min-Shyan Sheu
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Patent number: 11369497Abstract: Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.Type: GrantFiled: September 27, 2019Date of Patent: June 28, 2022Assignee: Covidien LPInventors: Xiaodong Ma, Min-Shyan Sheu, Lincoln Eramo, John Wainwright, Junwei Li
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Patent number: 11371818Abstract: The present invention provides a sabot (8) comprising a first material structure (12, 14) and a second material structure, wherein the first material structure is a lattice and wherein the second material structure is a solid. A munition (100) and a method of manufacturing a sabot are also provided.Type: GrantFiled: October 16, 2019Date of Patent: June 28, 2022Assignee: BAE SYSTEMS plcInventors: John Andrew Paterson, Benjamin Mark Davies, King Kwok Wong, John Wainwright