Patents by Inventor Craig Bonsignore
Craig Bonsignore 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: 20240099867Abstract: Stents useable for treating venous stenosis are disclosed. In embodiments, a stent is configured to be auxetic, expanding axially as it is expanded radially, to prevent the imposition of tension on portions of a blood vessel adjacent to the stented portion of the blood vessel, and thereby prevent a narrowing of the adjacent portions and improving luminal gain. The stent may include one or more cross members that are deformable axially, to allow the axial length of the stent to be adjusted while maintaining a constant diameter, and further to allow the stent to be curved to conform to vessel curvature.Type: ApplicationFiled: November 29, 2023Publication date: March 28, 2024Inventors: Ramsey Al-Hakim, Khashayar Farsad, John Kaufman, Craig Bonsignore
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Publication number: 20240016633Abstract: Methods and a system for performing a medical procedure at a treatment site of an occlusion in a dural venous sinus of a brain of a patient including advancing a catheter and a flexible inner member retrograde to a target location distal to a sigmoid sinus relative to an access point of entry, positioning the catheter at the treatment site in the dural venous sinus, removing the inner member from the patient; and treating the occlusion through the catheter to restore outflow of blood from the brain through the dural venous sinus. Related devices, systems, and methods are provided.Type: ApplicationFiled: July 11, 2023Publication date: January 18, 2024Inventors: Michi E. Garrison, Craig Bonsignore, Warren T. Kim, Tony M. Chou, John Miller, Joey English
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Publication number: 20230355413Abstract: A flow diverter including a self-expanding tubular member having a plurality of expandable cells, each of the expandable cells having interconnected struts and bridges. The tubular member has a constrained configuration having a first outer diameter of at least 1.0 mm sized for delivery using a flow diverter delivery system and an expanded configuration having a second outer diameter larger than the first outer diameter. The tubular member has a proximal end zone, a distal end zone, and a middle zone located between the proximal end zone and the distal end zone. At least the middle zone of the tubular member is laser-cut to have a material coverage of at least 25% when the tubular member is in the expanded configuration. Related devices, systems, and methods of treating disease, particularly intracranial and cerebral aneurysms by deploying implantable expandable devices, are provided.Type: ApplicationFiled: May 3, 2023Publication date: November 9, 2023Inventors: Michi E. Garrison, Craig Bonsignore, John Miller, Tony M. Chou, Travis Carbonneau
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Publication number: 20210346180Abstract: Stents useable for treating venous stenosis are disclosed. In embodiments, a stent is configured to be auxetic, expanding axially as it is expanded radially, to prevent the imposition of tension on portions of a blood vessel adjacent to the stented portion of the blood vessel, and thereby prevent a narrowing of the adjacent portions and improving luminal gain. The stent may include one or more cross members that are deformable axially, to allow the axial length of the stent to be adjusted while maintaining a constant diameter, and further to allow the stent to be curved to conform to vessel curvature.Type: ApplicationFiled: January 10, 2020Publication date: November 11, 2021Applicant: Oregon Health & Science UniversityInventors: Ramsey Al-Hakim, Khashayar Farsad, John Kaufman, Craig Bonsignore
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Publication number: 20190276921Abstract: There are super elastic NiTi materials for use as medical components, especially implantable medical components, and methods of fabricating such components to have desired R-phase characteristics in-vivo. Additionally, there are methods of processing a TiNi material to produce an implantable medical component by cold or warm working the TiNi material at least 15%; aging the cold or warm worked TiNi material under stress at between 300-700° C.; and further aging the TiNi material below 300° C. to produce desired R-phase characteristics. Additionally, there are methods of processing a TiNi material to produce a medical component by processing the TiNi material to produce a medical component that has a stress free M*s below a normal body temperature. Additionally, a TiNi material is used to produce a super elastic medical component from a tube, a sheet, a wire or a strip to have a stress free M*s below a normal body temperature.Type: ApplicationFiled: October 23, 2017Publication date: September 12, 2019Inventors: Thomas DUERIG, Ali SHAMIMI, Craig BONSIGNORE
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Publication number: 20190110913Abstract: A stent includes a first section and a second section. The first section and the second section each include a plurality of expandable modules and a plurality of bridging modules. Each expandable module includes a plurality of strut elements that join together at a plurality of apices, and each bridging module includes bridging elements that connect an apex of a first module with an apex of a second module. In some aspects, the first section is more flexible along the longitudinal axis of the stent than the second section and is configured to be placed in a specific region of a vessel that requires flexibility to accommodate surrounding anatomy. In some aspects, the first section is more radially stiff than the second section and is configured to be placed in a specific region of the vessel that requires radial stiffness to counteract crushing force caused by surrounding anatomy.Type: ApplicationFiled: September 6, 2018Publication date: April 18, 2019Inventors: Craig BONSIGNORE, Stephen J. KLESHINSKI
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Patent number: 10092427Abstract: A stent includes a first section and a second section. The first section and the second section each include a plurality of expandable modules and a plurality of bridging modules. Each expandable module includes a plurality of strut elements that join together at a plurality of apices, and each bridging module includes bridging elements that connect an apex of a first module with an apex of a second module. In some aspects, the first section is more flexible along the longitudinal axis of the stent than the second section and is configured to be placed in a specific region of a vessel that requires flexibility to accommodate surrounding anatomy. In some aspects, the first section is more radially stiff than the second section and is configured to be placed in a specific region of the vessel that requires radial stiffness to counteract crushing force caused by surrounding anatomy.Type: GrantFiled: November 4, 2010Date of Patent: October 9, 2018Assignee: Confluent Medical Technologies, Inc.Inventors: Craig Bonsignore, Stephen J. Kleshinski
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Patent number: 9452068Abstract: An expandable slide and lock stent comprises a tubular member that can be expanded from a collapsed state to an expanded state. The tubular member can comprise a reversing helical backbone and at least one rail member extending from the helical backbone in a circumferential direction. The backbone can have at least one engagement element that can be configured to receive a rail member to form the tubular member. In some embodiments, the reversing helical backbone can comprise a plurality of discrete segments having a variable profile and/or wave form.Type: GrantFiled: August 28, 2013Date of Patent: September 27, 2016Assignee: REVA Medical, Inc.Inventors: Eric Schmid, Keith Weier, Keith A. Esser, Steven C. Howard, John Hobson, Craig Bonsignore
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Patent number: 9101503Abstract: A tubular prosthesis has a plurality of tubular rings that are radially expandable from a contracted configuration to an expanded configuration. Each ring comprises a plurality of axially oriented struts that are interconnected so as to form a circumferential series of at least one high peak and at least one low peak. The high and low peaks have apices that are oriented in the same axial direction. The apices of the high and low peaks are also oriented in the same direction and the apices of the high peaks are axially offset from the apices of the low peaks. A bridge member couples a pair of adjacent tubular rings together. The bridge member has a first end connected to a first low peak in a first tubular ring and a second end connected to either a high or low peak in an adjacent tubular ring.Type: GrantFiled: March 6, 2008Date of Patent: August 11, 2015Assignee: J.W. MEDICAL SYSTEMS LTD.Inventors: David Lowe, Craig Bonsignore, David W. Snow, Timothy Robinson, Joshua P. Wiesman, Dawn Henderson, Nathan Maier
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Patent number: 9066827Abstract: An expandable slide and lock stent is provided that comprises a plurality of radial elements interconnected to form a tubular member. Each radial element can comprise a helical backbone and at least one elongate member extending from the helical backbone in a circumferential direction. Each backbone can have at least one slot that can be configured to receive an elongate member of an adjacent radial element.Type: GrantFiled: September 4, 2013Date of Patent: June 30, 2015Assignee: REVA Medical, Inc.Inventors: Eric Schmid, Andrew Morris, Keith Weier, Craig Bonsignore, Keith Esser, Steven C. Howard, Joseph A. DiPari
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Patent number: 8906085Abstract: In accordance with the present invention, there is provided a stent for insertion into a vessel of a patient. The stent has a front and back open ends and a longitudinal axis extending therebetween. The stent has a plurality of adjacent hoops that are held in alignment with the longitudinal axis between the front and back open ends by a thin film tube. The hoops are attached to either the inner or outer surface of the thin film tube. The stent is compressed into a first smaller diameter for insertion into the vessel with a delivery tube and a second larger diameter for deployment into the vessel. The inventive stent can be retracted into the delivery tube if it is improperly deployed.Type: GrantFiled: March 26, 2012Date of Patent: December 9, 2014Assignee: Cordis CorporationInventors: Carolyn Rice, Craig Bonsignore
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Publication number: 20140094897Abstract: An expandable slide and lock stent is provided that comprises a plurality of radial elements interconnected to form a tubular member. Each radial element can comprise a helical backbone and at least one elongate member extending from the helical backbone in a circumferential direction. Each backbone can have at least one slot that can be configured to receive an elongate member of an adjacent radial element.Type: ApplicationFiled: September 4, 2013Publication date: April 3, 2014Applicant: REVA Medical, Inc.Inventors: Eric Schmid, Andrew Morris, Keith Weier, Craig Bonsignore, Keith Esser, Steven C. Howard, Josepth A. DiPari
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Publication number: 20140067042Abstract: An expandable slide and lock stent comprises a tubular member that can be expanded from a collapsed state to an expanded state. The tubular member can comprise a reversing helical backbone and at least one rail member extending from the helical backbone in a circumferential direction. The backbone can have at least one engagement element that can be configured to receive a rail member to form the tubular member. In some embodiments, the reversing helical backbone can comprise a plurality of discrete segments having a variable profile and/or wave form.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Inventors: Eric Schmid, Keith Weier, Keith A. Esser, Steven C. Howard, John Hobson, Craig Bonsignore
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Patent number: 8562666Abstract: The invention is a medical device having nested interlocking axially adjacent segments that remain interlocked during delivery. The medical device is a stent in which the nested interlocked axially adjacent segments provide increased control and stability of the stent during delivery and increased vessel support when deployed. A series of repeating cells comprise a segment. Each cell comprises a protrusion and a radially and circumferentially adjacent receptacle. The protrusion from at least one cell in a segment interlocks with the receptacle of an axially adjacent segment to form the stent. The protrusions remain coupled with a corresponding receptacle during delivery of the stent to the intended treatment site, and can remain engaged thereafter, or can disengage from the corresponding receptacle after full deployment of the stent.Type: GrantFiled: September 28, 2005Date of Patent: October 22, 2013Inventor: Craig Bonsignore
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Patent number: 8545547Abstract: An expandable slide and lock stent is provided that comprises a plurality of radial elements interconnected to form a tubular member. Each radial element can comprise a helical backbone and at least one elongate member extending from the helical backbone in a circumferential direction. Each backbone can have at least one slot that can be configured to receive an elongate member of an adjacent radial element.Type: GrantFiled: May 23, 2011Date of Patent: October 1, 2013Assignee: Reva Medical Inc.Inventors: Eric Schmid, Andrew Morris, Keith Weier, Craig Bonsignore, Keith Esser, Steven C. Howard, Joseph A. DiPari
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Patent number: 8523936Abstract: An expandable slide and lock stent comprises a tubular member that can be expanded from a collapsed state to an expanded state. The tubular member can comprise a reversing helical backbone and at least one rail member extending from the helical backbone in a circumferential direction. The backbone can have at least one engagement element that can be configured to receive a rail member to form the tubular member. In some embodiments, the reversing helical backbone can comprise a plurality of discrete segments having a variable profile and/or wave form.Type: GrantFiled: April 8, 2011Date of Patent: September 3, 2013Assignee: REVA Medical, Inc.Inventors: Eric Schmid, Keith Weier, Keith A. Esser, Steven C. Howard, John Hobson, Craig Bonsignore
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Patent number: 8439967Abstract: A plurality of endoluminal segments axially connected by fiber bridges is disclosed. The endoluminal segments may be superelastic nitinol that is balloon-expandable or self-expanding. The intraluminal segments may possess a textured surface or at least one geometric feature per segment, located at the apex of a strut pair comprising the intraluminal segment, serving as an anchoring point for the fiber bridges. These geometric features may transmit axially compressive loads during deployment from a device such as a catheter, and may be capable of interlocking the endoluminal segments when constrained within a device such as a catheter. The fibers comprising the bridges may be polymeric, silk, collagen, bioabsorbable, or a blend thereof. The fiber network comprising the bridges may be regularly oriented, randomly oriented, localized, or continuous. The intraluminal segments and fiber bridges may be individually impregnated with therapeutic material, or may both be impregnated with therapeutic material.Type: GrantFiled: February 6, 2012Date of Patent: May 14, 2013Inventor: Craig Bonsignore
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Patent number: 8262720Abstract: The present invention is directed to a prosthesis for treating, repairing and/or replacing an abdominal aortic aneurysm. The prosthesis includes a stent having a first end and a second end with an intermediate section therebetween. The first end and seconds ends each include an anchor, wherein one or both anchor(s) has a diameter that is larger than the diameter of the intermediate section. The prosthesis also comprises graft material engaging at least a portion of the stent. The present invention is also directed to a prosthesis for repairing an aneurysm comprising a stent having a first end and a second wend with an intermediate section disposed therebetween. The first and second ends each include means for sealing the respective ends to a structure, wherein the intermediate section has a diameter that is smaller than the diameter of the first or second end. Graft material engages at least a portion of the stent.Type: GrantFiled: December 2, 2004Date of Patent: September 11, 2012Inventors: Craig Bonsignore, Tom Duerig, Gregory Mast
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Publication number: 20120179238Abstract: A plurality of radially expandable cylindrical elements are generally aligned along a common longitudinal axis and are interconnected by a plurality of interconnecting members placed so that the stent is flexible in the longitudinal direction. The plurality of cylindrical elements collectively form first and second stent ends longitudinally separated by a stent body. At least one of the first and second stent ends is reverse-tapered laterally outward from the longitudinal axis and longitudinally away from the stent body. The stent body has a stiffness value of X, and at least one of the first and second stent ends has a stiffness value of Z, with Z being greater than X such that the stent is more resistant to lateral force in the at least one of the first and second stent ends than in the stent body.Type: ApplicationFiled: January 10, 2011Publication date: July 12, 2012Inventors: Timur P. Sarac, Craig Bonsignore, Albrecht H. Kramer
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Publication number: 20120179241Abstract: In accordance with the present invention, there is provided a stent for insertion into a vessel of a patient. The stent has a front and back open ends and a longitudinal axis extending therebetween. The stent has a plurality of adjacent hoops that are held in alignment with the longitudinal axis between the front and back open ends by a thin film tube. The hoops are attached to either the inner or outer surface of the thin film tube. The stent is compressed into a first smaller diameter for insertion into the vessel with a delivery tube and a second larger diameter for deployment into the vessel. The inventive stent can be retracted into the delivery tube if it is improperly deployed.Type: ApplicationFiled: March 26, 2012Publication date: July 12, 2012Applicant: CORDIS CORPORATIONInventors: Carolyn RICE, Craig BONSIGNORE