Patents by Inventor Lukas J. Hijlkema
Lukas J. Hijlkema 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: 7959661Abstract: A delivery system for delivering an endoluminal implant to a distal deployment location inside a body lumen from a proximal access location outside the lumen. The system includes the implant, a catheter, and a slidable sheath having an advanced position in which the sheath covers the implant and a retracted position in which the implant is exposed. The catheter includes a stabilizer having a distal end adjacent the implant proximal end and/or a catheter tip attached to a central core slideably disposed relative to the implant and having a proximal end adjacent the implant distal end. The catheter tip proximal end and/or the stabilizer distal end includes a docking section adapted to releasably engage a portion of the implant. Each docking section has an engagement geometry including a flared engagement surface that extends inside a short axial length of the implant or a pocket having a bottleneck geometry.Type: GrantFiled: November 16, 2009Date of Patent: June 14, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Lukas J. Hijlkema, Fionnan Friel, Michael McMahon
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Patent number: 7722664Abstract: A modular elongated stent having an overlap region where two modular components fit together, the overlap region being relatively stiff as compared to another more flexible region of the stent when the stent is in an assembled configuration, the stent further comprising a mimic region that has a stiffness essentially equivalent to the stiffness of the overlap region, to provide kink resistance. A stent having such a mimic region or otherwise stiff region and a flexible region may have a transition region between the stiff and flexible regions, also to provide kink resistance. A stent may have relatively stiff regions and relatively flexible regions positioned to align the flexible regions with curved regions of a body lumen when deployed within the body lumen. The stiffness of the stiff, flexible, and transition regions may be controlled by varying the cross-sectional area of the stent components and/or by varying the stent architecture.Type: GrantFiled: April 13, 2007Date of Patent: May 25, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: David J. Zarbatany, Ari Moskowitz, Fergus Quigley, Lukas J. Hijlkema
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Publication number: 20100063573Abstract: A delivery system for delivering an endoluminal implant to a distal deployment location inside a body lumen from a proximal access location outside the lumen. The system comprises the implant, a catheter, and a slidable sheath having an advanced position in which the sheath covers the implant and a retracted position in which the implant is exposed. The catheter comprises a stabilizer having a distal end adjacent the implant proximal end and/or a catheter tip attached to a central core slideably disposed relative to the implant and having a proximal end adjacent the implant distal end. The catheter tip proximal end and/or the stabilizer distal end comprises a docking section adapted to releasably engage a portion of the implant. Each docking section has an engagement geometry comprising a flared engagement surface that extends inside a short axial length of the implant or a pocket having a bottleneck geometry.Type: ApplicationFiled: November 16, 2009Publication date: March 11, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Lukas J. Hijlkema, Fionnan Friel, Michael McMahon
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Patent number: 7632298Abstract: A delivery system for delivering an endoluminal implant to a distal deployment location inside a body lumen from a proximal access location outside the lumen. The system comprises the implant, a catheter, and a slidable sheath having an advanced position in which the sheath covers the implant and a retracted position in which the implant is exposed. The catheter comprises a stabilizer having a distal end adjacent the implant proximal end and/or a catheter tip attached to a central core slideably disposed relative to the implant and having a proximal end adjacent the implant distal end. The catheter tip proximal end and/or the stabilizer distal end comprises a docking section adapted to releasably engage a portion of the implant. Each docking section has an engagement geometry comprising a flared engagement surface that extends inside a short axial length of the implant or a pocket having a bottleneck geometry.Type: GrantFiled: February 2, 2005Date of Patent: December 15, 2009Assignee: Boston Scientific Scimed, Inc.Inventors: Lukas J. Hijlkema, Fionnan Friel, Michael McMahon
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Patent number: 7214241Abstract: A modular elongated stent having an overlap region where two modular components fit together, the overlap region being relatively stiff as compared to another more flexible region of the stent when the stent is in an assembled configuration, the stent further comprising a mimic region that has a stiffness essentially equivalent to the stiffness of the overlap region, to provide kink resistance. A stent having such a mimic region or otherwise stiff region and a flexible region may have a transition region between the stiff and flexible regions, such as a bridging material attached to the stent, also to provide kink resistance. A stent may have relatively stiff regions and relatively flexible regions positioned to align the flexible regions with curved regions of a body lumen when deployed within the body lumen.Type: GrantFiled: July 2, 2003Date of Patent: May 8, 2007Assignee: Boston Scientific Scimed, Inc.Inventors: David J. Zarbatany, Ari Moskowitz, Fergus P. Quigley, Lukas J. Hijlkema
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Patent number: 6962604Abstract: A generally tubular intraluminal compound stent comprising a plurality of component stents, each component stent having a length and a plurality of individual hoops axially disposed along the length and connected by a connecting spine, the component stents meshed with one another such that at least one hoop of one component stent is positioned between axially adjacent hoops of another component stent. The connecting spines may be helical, with at least one component stent spine oriented in a different helical direction than the spine of another component stent. Each hoop may further have a periphery comprising a pattern of zig-zags having apices, wherein adjacent hoops of the meshed component stents are aligned such that the apices of adjoining hoops abut or are interdigitated with one another. The compound stent may further comprise connectors, such as sutures, connecting at least some of the abutting or interdigitated apices.Type: GrantFiled: February 6, 2001Date of Patent: November 8, 2005Assignee: SciMed Life Systems, Inc.Inventor: Lukas J. Hijlkema
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Patent number: 6858034Abstract: A stent delivery system adapted to deliver a compressed stent to a distal deployment location inside a body lumen from a proximal access location outside the body lumen. The system houses a compressed stent and includes a pusher and a catheter tip attached to a central core slideably disposed within the pusher. At least one of the pusher distal end and catheter tip proximal end comprises a docking section adapted to releasably engage a limited length of one end of the compressed stent. The docking section may comprise a pocket having a flared end rim that is radially biased outward and adapted to be inwardly compressed to grip the stent end when the docking section is loaded in an outer sheath. Other docking section configurations are also disclosed, such as an insert within the stent, an annular pocket, and/or a set of fingers that grip the stent.Type: GrantFiled: May 18, 2000Date of Patent: February 22, 2005Assignee: SciMed Life Systems, Inc.Inventors: Lukas J. Hijlkema, Fionnan Friel, Michael McMahon
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Publication number: 20040106981Abstract: A modular elongated stent having an overlap region where two modular components fit together, the overlap region being relatively stiff as compared to another more flexible region of the stent when the stent is in an assembled configuration, the stent further comprising a mimic region that has a stiffness essentially equivalent to the stiffness of the overlap region, to provide kink resistance. A stent having such a mimic region or otherwise stiff region and a flexible region may have a transition region between the stiff and flexible regions, such as a bridging material attached to the stent, also to provide kink resistance. A stent may have relatively stiff regions and relatively flexible regions positioned to align the flexible regions with curved regions of a body lumen when deployed within the body lumen.Type: ApplicationFiled: July 2, 2003Publication date: June 3, 2004Inventors: David J. Zarbatany, Ari Moskowitz, Fergus P. Quigley, Lukas J. Hijlkema
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Patent number: 6610087Abstract: A modular elongated stent having an overlap region where two modular components fit together, the overlap region being relatively stiff as compared to another more flexible region of the stent when the stent is in an assembled configuration, the stent further comprising a mimic region that has a stiffness essentially equivalent to the stiffness of the overlap region, to provide kink resistance. A stent having such a mimic region or otherwise stiff region and a flexible region may have a transition region between the stiff and flexible regions, such as a bridging material attached to the stent, also to provide kink resistance. A stent may have relatively stiff regions and relatively flexible regions positioned to align the flexible regions with curved regions of a body lumen when deployed within the body lumen.Type: GrantFiled: November 16, 1999Date of Patent: August 26, 2003Assignee: SciMed Life Systems, Inc.Inventors: David J. Zarbatany, Ari Moskowitz, Fergus P. Quigley, Lukas J. Hijlkema
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Patent number: 6302907Abstract: A generally tubular intraluminal compound stent comprising a plurality of component stents, each component stent having a length and a plurality of individual hoops axially disposed along the length and connected by a connecting spine, the component stents meshed with one another such that at least one hoop of one component stent is positioned between axially adjacent hoops of another component stent. The connecting spines may be helical, with at least one component stent spine oriented in a different helical direction than the spine of another component stent. Each hoop may further have a periphery comprising a pattern of zig-zags having apices, wherein adjacent hoops of the meshed component stents are aligned such that the apices of adjoining hoops abut or are interdigitated with one another. The compound stent may further comprise connectors, such as sutures, connecting at least some of the abutting or interdigitated apices.Type: GrantFiled: October 5, 1999Date of Patent: October 16, 2001Assignee: SciMed Life Systems, Inc.Inventor: Lukas J. Hijlkema
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Publication number: 20010010015Abstract: A generally tubular intraluminal compound stent comprising a plurality of component stents, each component stent having a length and a plurality of individual hoops axially disposed along the length and connected by a connecting spine, the component stents meshed with one another such that at least one hoop of one component stent is positioned between axially adjacent hoops of another component stent. The connecting spines may be helical, with at least one component stent spine oriented in a different helical direction than the spine of another component stent. Each hoop may further have a periphery comprising a pattern of zig-zags having apices, wherein adjacent hoops of the meshed component stents are aligned such that the apices of adjoining hoops abut or are interdigitated with one another. The compound stent may further comprise connectors, such as sutures, connecting at least some of the abutting or interdigitated apices.Type: ApplicationFiled: February 5, 2001Publication date: July 26, 2001Inventor: Lukas J. Hijlkema