Patents by Inventor Bent Oehlenschlaeger
Bent Oehlenschlaeger 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: 20240122695Abstract: A stent graft for deployment in the aortic arch including at least a proximal stent ring at the proximal end of the tubular graft material, at least one fenestration provided in a side wall of the tubular graft material, an internal branch disposed within the lumen of the stent graft and extending from the fenestration. A fenestration-supporting stent ring supports the fenestration between two struts and an apex of the fenestration supporting ring. The proximal stent ring has plurality of stent units including at least one scallop unit, at least one supporting unit, and at least one body unit. The proximal apex of each scallop unit is located at a laterally extending edge of the scallop in a first circumferential region and the proximal apex of each supporting unit is located a second circumferential region. The first and second struts of each of the at least one scallop unit are shorter than the first and second struts of each of the at least one supporting unit.Type: ApplicationFiled: October 16, 2023Publication date: April 18, 2024Applicant: Cook Medical Technologies LLCInventors: Erik E. RASMUSSEN, Bent OEHLENSCHLAEGER, Jarin KRATZBERG, Robert BINSKIN, Chantelle KING
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Patent number: 11826243Abstract: Disclosed is a stent graft, including a graft body, a sealing stent at the proximal end of the graft body and completely overlapped by the graft body, and a diameter reducing loop arrangement. The sealing stent includes proximal apices at a proximal end thereof and distal apices at a distal end thereof. The diameter reducing loop arrangement includes a loop element. The loop element includes a first end, a second end, and a strand section from the first end to the second end. The first end is attached to the distal end of the sealing stent. The loop element is configured to pass circumferentially around the distal end of the sealing stent and have a release wire pass through a loop at the second end. The diameter reducing loop arrangement is configured to constrict the distal apices of the sealing stent and cause the sealing stent to adopt a substantially conical or frustoconical shape.Type: GrantFiled: January 7, 2022Date of Patent: November 28, 2023Assignee: Cook Medical Technologies LLCInventors: Martin W. Schmidt, Bent Oehlenschlaeger, Erik E. Rasmussen
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Publication number: 20230088094Abstract: A modular handle assembly comprises a stationary main handle having proximal and distal ends. A first handle extends proximally from the main handle and is rotationally moveable relative to the main handle, the first handle having proximal and distal ends, wherein a rotational interface is located at the distal end. A second handle extends distally from the main handle and is rotationally moveable relative to the main handle, the second handle having proximal and distal ends, wherein a rotational interface is located at the proximal end. The proximal end of the main handle comprises a first rotational interface that is configured to engage with a rotational interface at the distal end of the first handle and wherein the distal end of the main handle comprises a second rotational interface that is configured to engage with the rotational interface at the proximal end of the second handle.Type: ApplicationFiled: September 13, 2022Publication date: March 23, 2023Applicant: Cook Medical Technologies LLCInventors: RYAN C. BRADWAY, JARIN KRATZBERG, KEVIN WILGER, BENT OEHLENSCHLAEGER
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Publication number: 20220211482Abstract: Disclosed is a stent graft, including a graft body, a sealing stent at the proximal end of the graft body and completely overlapped by the graft body, and a diameter reducing loop arrangement. The sealing stent includes proximal apices at a proximal end thereof and distal apices at a distal end thereof. The diameter reducing loop arrangement includes a loop element. The loop element includes a first end, a second end, and a strand section from the first end to the second end. The first end is attached to the distal end of the sealing stent. The loop element is configured to pass circumferentially around the distal end of the sealing stent and have a release wire pass through a loop at the second end. The diameter reducing loop arrangement is configured to constrict the distal apices of the sealing stent and cause the sealing stent to adopt a substantially conical or frustoconical shape.Type: ApplicationFiled: January 7, 2022Publication date: July 7, 2022Applicant: Cook Medical Technologies LLCInventors: Martin W. Schmidt, Bent Oehlenschlaeger, Erik E. Rasmussen
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Patent number: 11376114Abstract: A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism acts to maintain the proximal stent constrained at both the proximal and distal ends of the proximal stent. The proximal stent is thus allowed to expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.Type: GrantFiled: June 8, 2020Date of Patent: July 5, 2022Assignee: Cook Medical Technologies LLCInventors: Tilo Kölbel, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Publication number: 20200323619Abstract: A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism acts to maintain the proximal stent constrained at both the proximal and distal ends of the proximal stent. The proximal stent is thus allowed to expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.Type: ApplicationFiled: June 8, 2020Publication date: October 15, 2020Applicant: Cook Medical Technologies LLCInventors: Tilo Kölbel, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Patent number: 10695158Abstract: An implantable medical device such as a filter has a generally conical shape formed by a set of filter legs extending from a free distal end to an apex of the assembly and specifically to a coupling device. A retrieval element such as a hook extends from the hub of. A spacer member is disposed at the hub and is formed of a plurality of curved wire elements. The spacer member has a radius or width smaller than the greatest radius of the filter device, defined by the free ends of the filter legs. The spacer member allows the filter assembly to tilt within a vessel but limits the tilt to a maximum desired or permitted tilt, ensuring that the retrieval device remains spaced from the vessel wall and therefore not subject to tissue ingrowth.Type: GrantFiled: October 6, 2015Date of Patent: June 30, 2020Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Jeppe D. Johnsen, Bent Øhlenschlaeger, Christian Dela, Torben Andersen
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Patent number: 10675140Abstract: A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism maintains the proximal stent constrained at both of its proximal and distal ends. The proximal stent can then expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.Type: GrantFiled: December 12, 2017Date of Patent: June 9, 2020Assignee: Cook Medical Technologies LLCInventors: Tilo Kölbel, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Patent number: 10292847Abstract: A system for deploying a stent graft includes a stent graft. The stent graft has a tubular structure and includes first and second end stents and at least one stent between the first and second end stents. The system also includes a plurality of constraining mechanisms arranged along the length of the stent graft constraining the stents of the stent graft, and an actuation mechanism configured to release the plurality of constraining mechanisms in order from the first end to the second end of the stent graft and circumferentially sequentially from about the stents.Type: GrantFiled: March 16, 2016Date of Patent: May 21, 2019Assignee: Cook Medical Technologies LLCInventors: Erik E. Rasmussen, Bent Oehlenschlaeger, Annette Petersen
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Patent number: 10195015Abstract: A stent graft includes a tubular graft element to which there are attached a plurality of stent rings. The stent rings are formed of a plurality of stent struts arranged in a zig-zag arrangement with alternating peaks and valleys. The end-most stent is located at the proximal end of the graft tube. Between adjacent peaks of the end most stent, there is provided a series of bridging elements. These are preferably formed of Nitinol wire and to be substantially more flexible than the stent struts. The bridging elements extend in the region of graft material between adjacent stent peaks and are attached to the graft material, for example by suturing. The bridging elements are substantially more flexible than the stent ring and therefore impart little opening force on the graft material in comparison to the force produced by the stent ring. However, the bridging elements impart enough force on the flaps of graft material between the peaks of the stent ring keep these flaps open, that is against the vessel wall.Type: GrantFiled: May 10, 2016Date of Patent: February 5, 2019Assignee: Cook Medical Technologies LLCInventors: Erik Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen, Jesper Schade Petersen
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Patent number: 10117736Abstract: The disclosure provides a filter apparatus and method of filtering in a body vessel. The filter apparatus comprises a filter unit and an expandable introducer designed to deliver the filter unit to the target filtering site. The filter unit attaches to the expandable introducer via a plurality of anchors on the filter unit. The expandable introducer delivers and presses the anchors to the vessel wall during implantation. After implantation, the filter unit exerts minimal or about zero radial force against the vessel wall.Type: GrantFiled: August 5, 2015Date of Patent: November 6, 2018Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Jeppe Dufresne Johnsen, Bent Oehlenschlaeger, Erik Rasmussen, Palle Hansen
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Publication number: 20180110610Abstract: A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism acts to maintain the proximal stent constrained at both the proximal and distal ends of the proximal stent. The proximal stent is thus allowed to expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.Type: ApplicationFiled: December 12, 2017Publication date: April 26, 2018Applicant: Cook Medical Technologies LLCInventors: Tilo Kölbel, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Patent number: 9925032Abstract: A stent graft (40) for treating Type-A dissections in the ascending aorta (22) is provided with a plurality of diameter reducing suture loops (56-60) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter reducing loops (56-60) allow the stent graft (40) to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries (26, 28) with confidence that these will not be blocked. The stent graft (40) is also provided with proximal and distal bare stents (44,52) for anchoring purposes.Type: GrantFiled: December 30, 2015Date of Patent: March 27, 2018Assignee: Cook Medical Technologies LLCInventors: Kim Moegelvang Jensen, Erik Edelboe Rasmussen, Bent Oehlenschlaeger
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Patent number: 9855128Abstract: A stent graft (18) for deployment in a curved lumen such as the aortic or thoracic arch (130) comprises a constraining mechanism at its proximal end. A stent (4?) provided at the proximal end of the stent graft (18) includes loops of material (11) that co-operate with restraining wires (42) that extend between a central guide wire carrier (24) and a restraining wire cannula (8). The constraining mechanism acts to maintain the proximal stent (4?) constrained at three points around its circumference at both the proximal and distal ends of the proximal stent (4?). The proximal stent (4?) is thus allowed to expand after expansion of the remainder of the stent graft (18) during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent (4?) at three points radially therearound, at the proximal end of the stent (4?) and at the distal end of the stent (4?).Type: GrantFiled: October 30, 2009Date of Patent: January 2, 2018Assignee: Cook Medical Technologies LLCInventors: Tilo Kölbel, Erik E. Rasmussen, Bent Øhlenschlaeger, Kim Moegelvang Jensen
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Patent number: 9757263Abstract: A stent graft (40) for treating Type-A dissections in the ascending aorta (22) is provided with a plurality of diameter-reducing suture loops (56-60) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter-reducing loops (56-60) allow the stent graft (40) to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries (26, 28) with confidence that these will not be blocked. The stent graft (40) is also provided with proximal and distal bare stents (44,52) for anchoring purposes.Type: GrantFiled: November 12, 2010Date of Patent: September 12, 2017Assignee: Cook Medical Technologies LLCInventors: Blayne A. Roeder, Jarin Kratzberg, William K. Dierking, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Møgelvang Jensen
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Patent number: 9717611Abstract: A stent graft (40) for treating Type-A dissections in the ascending aorta (22) is provided with a plurality of diameter reducing suture loops (56-60) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter reducing loops (56-60) allow the stent graft (40) to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries (26, 28) with confidence that these will not be blocked. The stent graft (40) is also provided with proximal and distal bare stents (44,52) for anchoring purposes.Type: GrantFiled: November 15, 2010Date of Patent: August 1, 2017Assignee: Cook Medical Technologies LLCInventors: Kim Moegelvang Jensen, Bent Oehlenschlaeger, Erik Rasmussen, Steven J. Charlebois, William K. Dierking, Jarin Kratzberg, Blayne A. Roeder, Richard A. Swift, Sharath Gopalakrishnamurthy
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Publication number: 20160270935Abstract: A system for deploying a stent graft includes a stent graft. The stent graft has a tubular structure and includes first and second end stents and at least one stent between the first and second end stents. The system also includes a plurality of constraining mechanisms arranged along the length of the stent graft constraining the stents of the stent graft, and an actuation mechanism configured to release the plurality of constraining mechanisms in order from the first end to the second end of the stent graft and circumferentially sequentially from about the stents.Type: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Erik E. Rasmussen, Bent Oehlenschlaeger, Annette Petersen
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Publication number: 20160262869Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: ApplicationFiled: May 20, 2016Publication date: September 15, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A.M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen
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Publication number: 20160256257Abstract: A stent graft includes a tubular graft element to which there are attached a plurality of stent rings. The stent rings are formed of a plurality of stent struts arranged in a zig-zag arrangement with alternating peaks and valleys. The end-most stent is located at the proximal end of the graft tube. Between adjacent peaks of the end most stent, there is provided a series of bridging elements. These are preferably formed of Nitinol wire and to be substantially more flexible than the stent struts. The bridging elements extend in the region of graft material between adjacent stent peaks and are attached to the graft material, for example by suturing. The bridging elements are substantially more flexible than the stent ring and therefore impart little opening force on the graft material in comparison to the force produced by the stent ring. However, the bridging elements impart enough force on the flaps of graft material between the peaks of the stent ring keep these flaps open, that is against the vessel wall.Type: ApplicationFiled: May 10, 2016Publication date: September 8, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Erik Rasmussen, Bent Oehlenschlaeger, Kim Moegelvang Jensen, Jesper Schade Petersen
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Patent number: 9345595Abstract: A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.Type: GrantFiled: June 2, 2014Date of Patent: May 24, 2016Assignee: Cook Medical Technologies LLCInventors: David Brocker, William K. Dierking, Alan R. Leewood, Timothy A. M. Chuter, Blayne A. Roeder, Steven J. Charlebois, Richard A. Swift, Sharath Gopalakrishnamurthy, Matthew Huser, Jarin Kratzberg, Erik E. Rasmussen, Bent Oehlenschlaeger, Kim Møgelvang Jensen