Patents by Inventor Hieu DANG
Hieu DANG 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: 11931041Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: May 10, 2021Date of Patent: March 19, 2024Assignee: Covidien LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Publication number: 20240058011Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device comprising a coil having a proximal end, a distal end, and a longitudinal axis extending therebetween. The coil may be formed of an elongated member wound about the longitudinal axis of the coil in a series of contiguous loops, wherein each of the loops extend around the longitudinal axis between a first end and a second end. The second end may be disposed at generally the same angular position as the first end about to the longitudinal axis of the coil. The elongated member may undulate along its longitudinal axis between the first and second ends of at least some of the individual loops.Type: ApplicationFiled: November 2, 2023Publication date: February 22, 2024Inventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Patent number: 11812967Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device comprising a coil having a proximal end, a distal end, and a longitudinal axis extending therebetween. The coil may be formed of an elongated member wound about the longitudinal axis of the coil in a series of contiguous loops, wherein each of the loops extend around the longitudinal axis between a first end and a second end. The second end may be disposed at generally the same angular position as the first end about to the longitudinal axis of the coil. The elongated member may undulate along its longitudinal axis between the first and second ends of at least some of the individual loops.Type: GrantFiled: December 16, 2020Date of Patent: November 14, 2023Assignee: COVIDIEN LPInventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Publication number: 20230338036Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: ApplicationFiled: June 28, 2023Publication date: October 26, 2023Inventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11793523Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device having a distal end, a proximal end, and a longitudinal axis extending therebetween. The occlusive device may comprise an elongated member wound about the longitudinal axis to form a series of loops, wherein along at least some of the loops, the elongated member includes a first peak and a second peak axially offset from the first peak, the first peak being axially between the second peak and the proximal end. The first peak may be convex towards the distal end, and the second peak may be convex towards the proximal end.Type: GrantFiled: December 16, 2020Date of Patent: October 24, 2023Assignee: COVIDIEN LPInventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Patent number: 11730485Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: December 17, 2019Date of Patent: August 22, 2023Assignee: COVIDIEN LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11678887Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: December 17, 2019Date of Patent: June 20, 2023Assignee: COVIDIEN LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11449757Abstract: A system and method for non-destructive optical coherence tomography (OCT) is provided. The system includes: an input interface for receiving OCT data including at least a C-scan; a processing unit executable to detect a feature on a surface or subsurface of the object, trained using a training set and configured to: separate the C-scan into A-scans; using a neural network, successively analyze each A-scan to detect the presence of an A-scan feature associated with the object; separate the C-scan into B-scans; segment each of the B-scans to determine thresholds associated with the object; using a neural network, successively analyze each segmented B-scan to detect the presence of an B-scan feature associated with the object; convert the C-scan to one or more two-dimensional representations; and using a neural network, detect the presence of an C-scan feature associated with the object.Type: GrantFiled: May 16, 2018Date of Patent: September 20, 2022Inventors: Wallace Trenholm, Mark Alexiuk, Hieu Dang, Siavash Malektaji, Kamal Darchinimaragheh
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Patent number: 11436428Abstract: A method and system for increasing data quality of a dataset for semi-supervised machine learning analysis. The method includes: receiving known class label information for a portion of the data in the dataset; receiving clustering parameters from a user; determining a data cleanliness factor, and where the data cleanliness factor is below a predetermined cleanliness threshold: assigning data without class label information as a data point to a cluster using the clustering parameters, each cluster having a cluster class label associated with such cluster; and determining a measure of assignment, and where the measure of assignment for each data point is below a predetermined assignment threshold, receiving a class label for such data points, otherwise, assigning the respective cluster class label to each data point with the respective measure of assignment below the predetermined assignment threshold; and otherwise, outputting the dataset with associated class labels for machine learning analysis.Type: GrantFiled: June 5, 2018Date of Patent: September 6, 2022Inventors: Wallace Trenholm, Mark Alexiuk, Hieu Dang, Siavash Malektaji, Kamal Darchinimaragheh
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Patent number: 11324513Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: December 17, 2019Date of Patent: May 10, 2022Assignee: COVIDIEN LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11278291Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: December 17, 2019Date of Patent: March 22, 2022Assignee: COVIDIEN LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Publication number: 20210353299Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: ApplicationFiled: May 10, 2021Publication date: November 18, 2021Inventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11129621Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: GrantFiled: December 17, 2019Date of Patent: September 28, 2021Assignee: Covidien LPInventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian
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Patent number: 11071637Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: GrantFiled: April 12, 2018Date of Patent: July 27, 2021Assignee: COVIDIEN LPInventors: Marc Dawson, Ashok Nageswaran, Aaron Barrett, Hieu Dang
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Publication number: 20210196490Abstract: A stent delivery system includes a core member and a coupling assembly rotatably coupled to the core member distal segment. The coupling assembly includes first and second plates and first and second spacers. The first plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The first spacer is coupled to the core member and disposed between the first plate and a proximal restraint. The second plate is rotatably coupled to the core member and includes an outer surface having three or more projections separated by recesses. The second spacer is coupled to the core member and disposed between the first plate and the second plate. A stent extends along the core member distal segment such that an inner surface of the stent is engaged by one or more projections of the first plate or the second plate.Type: ApplicationFiled: March 11, 2021Publication date: July 1, 2021Inventors: Marc Dawson, Ashok Nageswaran, Aaron Barrett, Hieu Dang
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Publication number: 20210100557Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device comprising a coil having a proximal end, a distal end, and a longitudinal axis extending therebetween. The coil may be formed of an elongated member wound about the longitudinal axis of the coil in a series of contiguous loops, wherein each of the loops extend around the longitudinal axis between a first end and a second end. The second end may be disposed at generally the same angular position as the first end about to the longitudinal axis of the coil. The elongated member may undulate along its longitudinal axis between the first and second ends of at least some of the individual loops.Type: ApplicationFiled: December 16, 2020Publication date: April 8, 2021Inventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Publication number: 20210100558Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device having a distal end, a proximal end, and a longitudinal axis extending therebetween. The occlusive device may comprise an elongated member wound about the longitudinal axis to form a series of loops, wherein along at least some of the loops, the elongated member includes a first peak and a second peak axially offset from the first peak, the first peak being axially between the second peak and the proximal end. The first peak may be convex towards the distal end, and the second peak may be convex towards the proximal end.Type: ApplicationFiled: December 16, 2020Publication date: April 8, 2021Inventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Patent number: 10912569Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device having a distal end, a proximal end, and a longitudinal axis extending therebetween. The occlusive device may comprise an elongated member wound about the longitudinal axis to form a series of loops, wherein along at least some of the loops, the elongated member includes a first peak and a second peak axially offset from the first peak, the first peak being axially between the second peak and the proximal end. The first peak may be convex towards the distal end, and the second peak may be convex towards the proximal end.Type: GrantFiled: August 22, 2018Date of Patent: February 9, 2021Assignee: COVIDIEN LPInventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Patent number: 10905432Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device having a distal end, a proximal end, and a longitudinal axis extending therebetween. The occlusive device may comprise an elongated member wound about the longitudinal axis to form a series of loops, wherein along at least some of the loops, the elongated member includes a first peak and a second peak axially offset from the first peak, the first peak being axially between the second peak and the proximal end. The first peak may be convex towards the distal end, and the second peak may be convex towards the proximal end.Type: GrantFiled: August 22, 2018Date of Patent: February 2, 2021Assignee: COVIDIEN LPInventors: Christopher Andrews, Etelvina Rivas, Hieu Dang
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Publication number: 20200197018Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, includes an occlusive device comprising a mesh having a low-profile state for intravascular delivery to the aneurysm and a deployed state, the mesh comprising a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state in which (a) the mesh is curved along its width, (b) the mesh is curved along its length, and (c) the mesh has an undulating contour across at least a portion of one or both of its length or its width. The mesh is configured to be positioned within the aneurysm in the deployed state such that the mesh extends over the neck of the aneurysm.Type: ApplicationFiled: December 17, 2019Publication date: June 25, 2020Inventors: Gregory Hamel, Patrick Quinn, Arturo Rosqueta, Stephen Sosnowski, Christopher Andrews, Hieu Dang, Dinh Nguyen, Robert Pecor, Minh Q. Dinh, Ahramahzd Tatavoosian