Patents by Inventor Boris Anukhin
Boris Anukhin 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: 8500791Abstract: System including a delivery catheter and a stent disposed at a distal end of the delivery catheter. The stent includes a plurality of radially expandable rings disposed adjacent to one another to define a tubular member having a proximal end portion, and a distal end portion, and a middle portion, each of the radially expandable rings including a plurality of strut members. The middle portion of the tubular member include a plurality of interconnection members extending between longitudinally adjacent expandable rings, the number of the plurality of the interconnection members being greater than that of the end portion of the tubular member. The stent also includes a transition section between the end portion and the middle portion, the transition section including at least one open cell and at least one closed cell. The stent can be self-expandable or balloon expandable.Type: GrantFiled: July 25, 2012Date of Patent: August 6, 2013Assignee: Abbott LaboratoriesInventors: Hao-Ming Hsiao, Keif Fitzgerald, Boris Anukhin
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Patent number: 8425587Abstract: A bioabsorbable polymeric stent with time dependent structure and properties and methods of treating a diseased blood vessel with the bioabsorable polymeric stent are disclosed. The structure and properties of the stent change with time and allow the vessel to be restored to a natural unstented state. The bioabsorbable stent loses mechanical integrity in a controlled manner due to modification of selected structural elements.Type: GrantFiled: September 17, 2009Date of Patent: April 23, 2013Assignee: Abbott Cardiovascular Systems Inc.Inventors: Mikael Trollsas, Dariush Davalian, Michael Huy Ngo, Hao-Ming Hsiao, Boris Anukhin, Syed F. A. Hossainy, David C. Gale
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Patent number: 8323330Abstract: A stent having a compacted configuration in which adjacent crowns of its undulating rings overlap one another. The overlapping compacted configuration provides for a relatively low profile in view of the coverage that is achieved by the stent upon expansion.Type: GrantFiled: June 22, 2010Date of Patent: December 4, 2012Assignee: Abbott Cardiovascular Systems Inc.Inventors: Keif Fitzgerald, Boris Anukhin
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Publication number: 20120296410Abstract: System including a delivery catheter and a stent disposed at a distal end of the delivery catheter. The stent includes a plurality of radially expandable rings disposed adjacent to one another to define a tubular member having a proximal end portion, and a distal end portion, and a middle portion, each of the radially expandable rings including a plurality of strut members. The middle portion of the tubular member include a plurality of interconnection members extending between longitudinally adjacent expandable rings, the number of the plurality of the interconnection members being greater than that of the end portion of the tubular member. The stent also includes a transition section between the end portion and the middle portion, the transition section including at least one open cell and at least one closed cell. The stent can be self-expandable or balloon expandable.Type: ApplicationFiled: July 25, 2012Publication date: November 22, 2012Inventors: Hao-Ming HSIAO, Keif FITZGERALD, Boris ANUKHIN
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Patent number: 8252041Abstract: Stent designs for use in peripheral vessels, such as the carotid arteries, are disclosed. The stents consist of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so that the stent is flexible in a longitudinal direction. The cylindrical elements are generally serpentine wave pattern transverse to the longitudinal axis between alternating valley portion and peak portions, the valley portion including alternating double-curved portions and U-shaped portions. The interconnecting members are attached to the double-curved portions to connect a cylindrical element to an adjacent cylindrical element and interconnecting members are attached to the U-shaped portions to connect the cylindrical element to the other adjacent cylindrical element. The designs include an eight crown and six crown stent which exhibit flexibility and sufficient radial strength to support the vessel.Type: GrantFiled: August 23, 2007Date of Patent: August 28, 2012Assignee: Abbott LaboratoriesInventors: Hao-Ming Hsiao, Keif Fitzgerald, Boris Anukhin
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Publication number: 20120083822Abstract: An implantable lumen filter is described. The filter may include a body formed from an elongate member. The body may include loops encircling an axis extending along the length of the body. The body may be sized to be implanted into a body lumen. The body may be capable of transitioning from a collapsed state to a deployed state. The filter may include a first group of a plurality of members positioned around at least one loop of said body. At least a portion of the plurality of members may be oriented towards the axis. The plurality of members may be arranged to capture and/or lyse particulates of a selected size and/or to inhibit the particulates from passing through the body. Methods of making, deploying, and retrieving the same are described.Type: ApplicationFiled: December 16, 2009Publication date: April 5, 2012Inventors: Boris Anukhin, David Mackiewicz, Michael L. Green, Sanjay Shrivastava
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Publication number: 20110313509Abstract: A stent having a compacted configuration in which adjacent crowns of its undulating rings overlap one another. The overlapping compacted configuration provides for a relatively low profile in view of the coverage that is achieved by the stent upon expansion.Type: ApplicationFiled: June 22, 2010Publication date: December 22, 2011Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Keif Fitzgerald, Boris Anukhin
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Publication number: 20110190872Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold also has a reduced crimped profile and a modification of the scaffold's ring structure at the crowns that contributes to the reduced crimped profile.Type: ApplicationFiled: January 27, 2011Publication date: August 4, 2011Applicant: Abbott Cardiovascular Systems Inc.Inventors: Boris Anukhin, Michael H. Ngo, Mikael Trollsas, Syed Hossainy, John Papp
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Publication number: 20110190871Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.Type: ApplicationFiled: January 27, 2011Publication date: August 4, 2011Applicant: Abbott Cardiovascular Systems Inc.Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John Papp, Dudley Jayasinghe, Zella Solter
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Publication number: 20110066225Abstract: A bioabsorbable polymeric stent with time dependent structure and properties and methods of treating a diseased blood vessel with the bioabsorable polymeric stent are disclosed. The structure and properties of the stent change with time and allow the vessel to be restored to a natural unstented state. The bioabsorbable stent loses mechanical integrity in a controlled manner due to modification of selected structural elements.Type: ApplicationFiled: September 17, 2009Publication date: March 17, 2011Inventors: Mikael Trollsas, Dariush Davalian, Michael Huy Ngo, Hao-Ming Hsiao, Boris Anukhin, Syed F.A. Hossainy, David C. Gale
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Publication number: 20100193485Abstract: Methods for making devices include providing a tubular member to be formed into a device, placing a removable sacrificial block material in the lumen of the tubular member and laser cutting the tubular member. A doping material can be added to the melted portion of the tubular member to promote the formation of brittle slag. A fixture can be used to hold a cut workpiece in order to ream sacrificial material from the surface of the workpiece. Pressurized gas can be supplied to the inner lumen of the tubular member to cause slag to form on the outside surface, rather than the inner surface, of the tubular member. A tubular member made from nickel-titanium alloy can be tightly adhered to a sacrificial sleeve utilizing the phase changes associated with nickel-titanium. A rotating mandrel can be placed within the lumen of the tubular member during laser cutting.Type: ApplicationFiled: April 9, 2010Publication date: August 5, 2010Applicant: ABBOTT CARDIOVASCULAR SYSTEMS, INC.Inventors: Boris Anukhin, Larry Baughman, Pamela A. Kramer-Brown, Neil Burkhart, Li Chen, Duane M. DeMore, Keif Fitzgerald, Gregory W. Johnson, Z. C. Lin, David Mackiewicz, Karim S. Osman, Randolf Von Oepen, William E. Webler, JR., Travis R. Yribarren
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Publication number: 20100145433Abstract: Example embodiments include an endoprosthesis that has a first annular segment that is radially expandable and a second annular segment that is also radially expandable. An axial segment, which includes one or more struts, is operatively associated with the first annular segment and the second annular segment to maintain a specified distance between the first annular segment and the second annular segment.Type: ApplicationFiled: September 30, 2009Publication date: June 10, 2010Applicant: Abbott Cardiovascular Systems, Inc.Inventors: Boris Anukhin, Keif Fitzgerald
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Patent number: 7708925Abstract: An apparatus for heating and setting elements of a stent. The apparatus is a mandrel having a central core cylinder with an outer surface including a plurality of raised forms and gaps in-between the raised forms. The mandrel also includes a first and second outer cylinder, each having a curved radial end with a cut-out design similar to the shape of the plurality of raised forms. Once a stent is placed on the central core cylinder, the first and second outer cylinders are positioned on the central core cylinder such that the curved radial ends of the first and second outer cylinders align with the plurality of raised forms, shaping the stent.Type: GrantFiled: August 10, 2006Date of Patent: May 4, 2010Assignee: Abbott Vascular Solutions Inc.Inventors: Boris Anukhin, Masoud Molaei, David T. Pollock
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Publication number: 20090187215Abstract: Devices and methods fabricating an implantable device are disclosed. A method of fabricating an implantable device is disclosed. The method includes positioning a planar base material. The planar base material has a first inner surface. The first inner surface has a first inner surface dimension. The planar base material has a first outer surface. The first outer surface has a first outer surface dimension. A portion of the first inner surface of the base material is removed to define an annular body movable from a first state towards a second state. The annular body includes a second inner surface having a second inner surface dimension and a second outer surface having a second outer surface dimension. The second inner surface dimension is smaller than the first inner surface dimension, the first outer surface dimension, and the second outer surface dimension.Type: ApplicationFiled: December 18, 2008Publication date: July 23, 2009Applicant: Abbott LaboratoriesInventors: David Mackiewicz, Boris Anukhin
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Publication number: 20090024157Abstract: A cage and sleeve assembly for an embolic filtering device used to filter embolic particles from a body vessel has a strut assembly that is movable between an unexpanded position and an expanded position. The struts are configured to form a cage having an open cell design. The open cell design provides a filter cage with increased radial flexibility that also increases the contact with a vessel wall while reducing the landing zone length. Such an open cell design may have one or more rings that are not connected together at each vertex, and may be constructed from one ring. The sleeve assembly of the embolic filtering device may be joined to the filter cage at each vertex of the open cell or along the periphery of the open cell.Type: ApplicationFiled: July 18, 2007Publication date: January 22, 2009Applicant: ABBOTT LABORATORIESInventor: BORIS ANUKHIN
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Publication number: 20080228261Abstract: An expandable stent is implanted in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The stent includes a plurality of rings connected by links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The stent can be compressed or crimped onto a catheter to a very low profile since links are integrally formed from a portion of the struts forming the rings. The stent is constructed so that the cylindrical rings are very close together in order to provide maximum scaffolding, and if the stent has a drug coating, to provide a uniform drug delivery over the length of the stent. The connecting links are integrally formed from a portion of the struts forming the rings so that the links can have a maximum length thereby providing increased longitudinal flexibility of the stent.Type: ApplicationFiled: March 13, 2007Publication date: September 18, 2008Inventors: Boris Anukhin, Hao-Ming Hsiao, Keif Fitzgerald
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Publication number: 20080051877Abstract: Stent designs for use in peripheral vessels, such as the carotid arteries, are disclosed. The stents consist of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so that the stent is flexible in a longitudinal direction. The cylindrical elements are generally serpentine wave pattern transverse to the longitudinal axis between alternating valley portion and peak portions, the valley portion including alternating double-curved portions and U-shaped portions. The interconnecting members are attached to the double-curved portions to connect a cylindrical element to an adjacent cylindrical element and interconnecting members are attached to the U-shaped portions to connect the cylindrical element to the other adjacent cylindrical element. The designs include an eight crown and six crown stent which exhibit flexibility and sufficient radial strength to support the vessel.Type: ApplicationFiled: August 23, 2007Publication date: February 28, 2008Applicant: ABBOTT LABORATORIESInventors: Hao-Ming Hsiao, Keif Fitzgerald, Boris Anukhin
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Publication number: 20070191926Abstract: An expandable stent has larger cells located at the distal end of the stent than in the body portion so that a catheter balloon can more easily protrude into the cells to increase stent retention relative to the balloon. The intravascular stent has a plurality of cylindrical rings connected by links, the spacing of which is a factor in defining the cell size. The stent can be compressed or crimped onto a balloon catheter to a very low profile and maintain a high degree of stent retention due to increased spacing between rings in the region of the distal end ring.Type: ApplicationFiled: February 14, 2006Publication date: August 16, 2007Inventors: Alexander Nikanorov, Keif Fitzgerald, Steven Tyler, Boris Anukhin
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Publication number: 20060267247Abstract: An apparatus for heating and setting elements of a stent. The apparatus is a mandrel having a central core cylinder with an outer surface including a plurality of raised forms and gaps in-between the raised forms. The mandrel also includes a first and second outer cylinder, each having a curved radial end with a cut-out design similar to the shape of the plurality of raised forms. Once a stent is placed on the central core cylinder, the first and second outer cylinders are positioned on the central core cylinder such that the curved radial ends of the first and second outer cylinders align with the plurality of raised forms, shaping the stent.Type: ApplicationFiled: August 10, 2006Publication date: November 30, 2006Inventors: Boris Anukhin, Masoud Molaei, David Pollock
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Patent number: 7112055Abstract: An apparatus for heating and setting elements of a stent. The apparatus is a mandrel having a central core cylinder with an outer surface including a plurality of raised forms and gaps in-between the raised forms. The mandrel also includes a first and second outer cylinder, each having a curved radial end with a cut-out design similar to the shape of the plurality of raised forms. Once a stent is placed on the central core cylinder, the first and second outer cylinders are positioned on the central core cylinder such that the curved radial ends of the first and second outer cylinders align with the plurality of raised forms, shaping the stent.Type: GrantFiled: July 2, 2002Date of Patent: September 26, 2006Assignee: Endovascular Technologies, Inc.Inventors: Boris Anukhin, Masoud Molaei, David T. Pollock