Patents Assigned to Concentric Medical, Inc.
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Patent number: 8409215Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: August 20, 2009Date of Patent: April 2, 2013Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Emily Vu, Dan Nguyen, John Miller, Ryan Pierce, Tiffany Tran Ngo, Norman Fung
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Patent number: 8357178Abstract: A clot retrieval device including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is expandable from a first delivery position to a second placement position. In the first delivery position the expandable member has a first overall diameter In one implementation the cell structures that form the self-expandable member have dimensional and material characteristics that result in about a ?1.0N to about a ?1.7N overall reduction in radial force along the length of the expandable member per millimeter of expansion during about an initial 0.50 mm diametric range of expansion from the first overall diameter and that results in about a ?0.10N to about a ?0.35N overall reduction in radial force along the length of the expandable member per millimeter of expansion during subsequent diametric ranges of expansion.Type: GrantFiled: July 8, 2010Date of Patent: January 22, 2013Assignee: Concentric Medical, Inc.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Emily Vu, Kirk L. Pedersen, Craig L. Bonsignore, Elliot H. Sanders
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Patent number: 8357179Abstract: Devices including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member to form first and second peripheral rails that vary in width along their lengths.Type: GrantFiled: February 4, 2011Date of Patent: January 22, 2013Assignee: Concentric Medical, Inc.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Elliot H. Sanders
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Patent number: 8298257Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: October 13, 2005Date of Patent: October 30, 2012Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Son Gia, John Miller, Ryan Pierce, Maria Aboytes, Tiffany Tran Ngo
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Patent number: 8267940Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: October 25, 2004Date of Patent: September 18, 2012Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Son Gia, John Miller, Ryan Pierce, Maria Aboytes, Tiffany Tran Ngo
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Publication number: 20120215250Abstract: Devices including, but not limited to, a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member to form first and second peripheral rails that vary in width along their lengths.Type: ApplicationFiled: November 23, 2011Publication date: August 23, 2012Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, Elliot H. Sanders
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Publication number: 20120209311Abstract: Devices including, but not limited to, a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member.Type: ApplicationFiled: February 3, 2012Publication date: August 16, 2012Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, Elliot H. Sanders
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Patent number: 8105333Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: January 11, 2008Date of Patent: January 31, 2012Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Martin Dieck, Son Gia, John Miller, Ryan Pierce, Maria Aboytes, Tiffany Tran Ngo, Dan Nguyen, Emily Vu
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Patent number: 8062307Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: December 28, 2007Date of Patent: November 22, 2011Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Emily Vu, Dan Nguyen, John Miller, Ryan Pierce, Tiffany Tran Ngo, Norman Fung
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Publication number: 20110184456Abstract: Devices including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member to form first and second peripheral rails that vary in width along their lengths.Type: ApplicationFiled: February 4, 2011Publication date: July 28, 2011Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Elliot H. Sanders
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Publication number: 20110172699Abstract: This is a balloon catheter having at least two lumens. One of the lumens is a large working lumen. The balloon catheter is especially useful as a guide catheter or micro catheter and may be used in a variety of therapeutic and diagnostic procedures. In particular, it has value in treating neurovascular embolic strokes in combination with other devices which are delivered to the stroke site through that working lumen. The remainder of the lumens typically are used to inflate and to deflate the balloon.Type: ApplicationFiled: July 14, 2010Publication date: July 14, 2011Applicant: Concentric Medical, Inc.Inventors: John Miller, Martin Dieck, Maria Aboytes, Ryan Pierce
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Publication number: 20110166586Abstract: A system for removing an obstruction from a blood vessel includes an obstruction engaging element and an expandable capture element. The capture element preferably has a flexible cover and an expandable support structure. The engaging element engages the obstruction and moves the obstruction into the capture element. The capture element protects the obstruction when the obstruction is moved into the catheter.Type: ApplicationFiled: March 8, 2011Publication date: July 7, 2011Applicant: CONCENTRIC MEDICAL, INC.Inventors: IVAN SEPETKA, Martin Dieck, Son Gia, John Miller, Tiffany Tran Ngo, Ryan Pierce
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Publication number: 20110137332Abstract: A device for treating vascular malformations includes a primary coil and secondary windings. The primary coil provides resilience and structural integrity while the secondary windings fill interstitial spaces in the primary coil to isolate the vascular malformation. The device may have increased density along a central portion to isolate the malformation. In another aspect, the device may have a central opening through which embolic materials may be delivered.Type: ApplicationFiled: December 21, 2009Publication date: June 9, 2011Applicant: CONCENTRIC MEDICAL, INC., A Delaware Corporation.Inventors: Ivan Sepetka, Martin S. Dieck, Ryan Pierce, Maria Aboytes, Son Gia
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Publication number: 20110009950Abstract: A device including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member. In one implementation the cell structures have dimensional and material characteristics that result in about a ?1.5N to a about a ?3.Type: ApplicationFiled: July 8, 2010Publication date: January 13, 2011Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Emily Vu, Kirk L. Pedersen, Craig L. Bonsignore, Elliot H. Sanders
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Publication number: 20110009941Abstract: A device including a self-expandable member having a proximal end portion and a main body portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. In one implementation, at least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body of the expandable member. In another implementation at least some of the intersecting strut members have a thickness to width ratio of greater than one. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature of a patient. In another implementation, the device is delivered to the treatment site through the lumen of a delivery catheter.Type: ApplicationFiled: December 21, 2009Publication date: January 13, 2011Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Emily Vu, Kirk L. Pedersen, Craig L. Bonsignore, Elliot H. Sanders
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Publication number: 20110009875Abstract: An embolic obstruction retrieval device including a self-expandable member having a proximal end portion, a main body portion and a distal end portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. At least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body and distal end portions of the expandable member. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature and access the embolic obstruction. In one implementation, the embolic obstruction retrieval device is delivered to the embolic obstruction through the lumen of a delivery catheter.Type: ApplicationFiled: July 8, 2009Publication date: January 13, 2011Applicant: CONCENTRIC MEDICAL, INC.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Emily Vu, Kirk L. Pedersen, Craig L. Bonsignore, Elliot H. Sanders
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Publication number: 20110009940Abstract: A device including a self-expandable member having a proximal end portion, a main body portion and a distal end portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. In one implementation, at least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body and distal end portions of the expandable member. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature of a patient. In another implementation, the device is delivered to the treatment site through the lumen of a delivery catheter.Type: ApplicationFiled: October 5, 2009Publication date: January 13, 2011Applicant: Concentric Medical, Inc.Inventors: Ryan M. Grandfield, Scott D. Wilson, John H. Miller, Emily Vu, Kirk L. Pedersen, Craig L. Bonsignore, Elliot H. Sanders
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Patent number: 7766049Abstract: This is a balloon catheter having at least two lumens. One of the lumens is a large working lumen. The balloon catheter is especially useful as a guide catheter or micro catheter and may be used in a variety of therapeutic and diagnostic procedures. In particular, it has value in treating neurovascular embolic strokes in combination with other devices which are delivered to the stroke site through that working lumen. The remainder of the lumens typically are used to inflate and to deflate the balloon.Type: GrantFiled: October 22, 2003Date of Patent: August 3, 2010Assignee: Concentric Medical, Inc.Inventors: John Miller, Martin Dieck, Maria Aboytes, Ryan K. Pierce
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Patent number: 7766921Abstract: Devices and methods for removing an obstruction from a blood vessel are described. The devices are deployed in a collapsed condition and are then expanded within the body. The devices are then manipulated to engage and remove the obstruction.Type: GrantFiled: May 5, 2004Date of Patent: August 3, 2010Assignee: Concentric Medical, Inc.Inventors: Ivan Sepetka, Son Gia, John Miller, Ryan Pierce, Maria Aboytes, Tiffany Tran Ngo
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Publication number: 20100152766Abstract: An intravascular filter having a filament which expands a filter element. The filament is a coil which is stretched to reduce the diameter of the coil for introduction. The filter element is preferably biased toward the closed position and is opened by the coil when tension is released on the coil. The filament slides along the internal surface of the filter element so that the filter element may assume intermediate positions.Type: ApplicationFiled: February 9, 2010Publication date: June 17, 2010Applicant: CONCENTRIC MEDICAL, INC.Inventors: Martin S. Dieck, Brian B. Martin