Patents by Inventor Bruce H. Asmus
Bruce H. Asmus 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: 20230390535Abstract: A guide extension catheter comprising a proximal reinforcing section that is completely surrounded by, or encased within, a polymer covering or coating the proximal reinforcing section, and further comprising an exemplary semi-circular flared section disposed proximal to the proximal reinforcing section, wherein the flare is interrupted by a flattened bottom. The proximal reinforcing section is configured to interconnect with a flat ribbon which is connected with or defines a proximally extending push rod.Type: ApplicationFiled: June 29, 2022Publication date: December 7, 2023Inventors: Bruce H. Asmus, Jeffrey A. McBroom, Jared W. Connelly, Craig Stowell, Christopher J. Gotz, Daniel J. Vreeman, Kristen M. Rauscher
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Patent number: 10806905Abstract: Devices and methods for providing an elastically deforming guidewire tip, capable of withstanding the extreme forces of high-speed rotational atherectomy, in particular orbital motion induced by an eccentric abrasive head, are disclosed. In certain embodiments, the reformable tip comprises an inner nitinol support coil, wherein the reformable tip may be attached to a larger proximal core for improved kink resistance and support for delivering adjunctive devices. In other embodiments, an inner nitinol support coil may be wrapped with a braided coil and/or a polymer sleeve. The resulting tip is more flexible with reduced risk of perforation than known guidewire tips.Type: GrantFiled: August 3, 2015Date of Patent: October 20, 2020Assignee: Cardiovascular Systems, Inc.Inventor: Bruce H. Asmus
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Publication number: 20160038719Abstract: Devices and methods for providing an elastically deforming guidewire tip, capable of withstanding the extreme forces of high-speed rotational atherectomy, in particular orbital motion induced by an eccentric abrasive head, are disclosed. In certain embodiments, the reformable tip comprises an inner nitinol support coil, wherein the reformable tip may be attached to a larger proximal core for improved kink resistance and support for delivering adjunctive devices. In other embodiments, an inner nitinol support coil may be wrapped with a braided coil and/or a polymer sleeve. The resulting tip is more flexible with reduced risk of perforation than known guidewire tips.Type: ApplicationFiled: August 3, 2015Publication date: February 11, 2016Inventor: Bruce H. Asmus
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Publication number: 20150359445Abstract: A pressure sensing device is provided that can monitor and measure pressure at two points in a vessel or artery without moving the outer sheath or catheter of the device. The outer sheath or catheter includes two spaced apart openings that may be positioned in a vessel or artery on opposing sides of an occlusion. The device also includes an inner elongated tube with at least one opening. The inner elongated tube is slidable with respect to the outer sheath or catheter thereby permitting the opening of the elongated tube to be moved into selective registration with one of the openings of the outer sheath. A pressure measurement may be taken through one of the openings in the outer sheath by aligning the opening of the elongated tube with said opening and, then, a second pressure reading may be taken by sliding the elongated tube within the outer sheath so that the opening of the elongated tube is in registry with the other opening of the tubular sheath.Type: ApplicationFiled: August 24, 2015Publication date: December 17, 2015Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: TIMOTHY G.J. EHR, BRUCE H. ASMUS
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Patent number: 9113790Abstract: A pressure sensing device is provided that can monitor and measure pressure at two points in a vessel or artery without moving the outer sheath or catheter of the device. The outer sheath or catheter includes two spaced apart openings that may be positioned in a vessel or artery on opposing sides of an occlusion. The device also includes an inner elongated tube with at least one opening. The inner elongated tube is slidable with respect to the outer sheath or catheter thereby permitting the opening of the elongated tube to be moved into selective registration with one of the openings of the outer sheath. A pressure measurement may be taken through one of the openings in the outer sheath by aligning the opening of the elongated tube with said opening and, then, a second pressure reading may be taken by sliding the elongated tube within the outer sheath so that the opening of the elongated tube is in registry with the other opening of the tubular sheath.Type: GrantFiled: March 10, 2014Date of Patent: August 25, 2015Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Timothy G. J. Ehr, Bruce H. Asmus
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Publication number: 20140187986Abstract: A pressure sensing device is provided that can monitor and measure pressure at two points in a vessel or artery without moving the outer sheath or catheter of the device. The outer sheath or catheter includes two spaced apart openings that may be positioned in a vessel or artery on opposing sides of an occlusion. The device also includes an inner elongated tube with at least one opening. The inner elongated tube is slidable with respect to the outer sheath or catheter thereby permitting the opening of the elongated tube to be moved into selective registration with one of the openings of the outer sheath. A pressure measurement may be taken through one of the openings in the outer sheath by aligning the opening of the elongated tube with said opening and, then, a second pressure reading may be taken by sliding the elongated tube within the outer sheath so that the opening of the elongated tube is in registry with the other opening of the tubular sheath.Type: ApplicationFiled: March 10, 2014Publication date: July 3, 2014Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: TIMOTHY G.J. EHR, BRUCE H. ASMUS
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Patent number: 8414506Abstract: Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip designs including coiled safety/shaping structures are also disclosed.Type: GrantFiled: June 15, 2007Date of Patent: April 9, 2013Assignee: Boston Scientific Scimed, Inc.Inventors: Brian Reynolds, Peter Skujins, Brice Shireman, Bruce H. Asmus, Ron Tanaka, Michael Swee
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Patent number: 8042251Abstract: Methods of heating and cooling during a crimping process are disclosed. One method includes providing a cooling source to cool the stent and/or drug eluting coating of the stent while crimping the stent onto the balloon, and providing a heating source to heat the balloon while crimping the stent onto the balloon. Another method includes introducing a cooling fluid through a passage in one or more of the plurality of crimping elements of the crimping apparatus to cool the crimping elements while crimping the stent onto the balloon, and introducing a heating fluid through the elongate shaft of the balloon catheter to heat the balloon while crimping the stent onto the balloon.Type: GrantFiled: May 21, 2008Date of Patent: October 25, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Bruce H. Asmus, Brian R. Butler, Ray Adney, Timothy G. J. Ehr
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Patent number: 7993286Abstract: Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip designs including coiled safety/shaping structures are also disclosed.Type: GrantFiled: January 31, 2007Date of Patent: August 9, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Brian R. Reynolds, Peter Skujins, Brice L. Shireman, Bruce H. Asmus, Ronald Tanaka, Michael Swee
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Publication number: 20090292347Abstract: Methods of heating and cooling during a crimping process are disclosed. One method includes providing a cooling source to cool the stent and/or drug eluting coating of the stent while crimping the stent onto the balloon, and providing a heating source to heat the balloon while crimping the stent onto the balloon. Another method includes introducing a cooling fluid through a passage in one or more of the plurality of crimping elements of the crimping apparatus to cool the crimping elements while crimping the stent onto the balloon, and introducing a heating fluid through the elongate shaft of the balloon catheter to heat the balloon while crimping the stent onto the balloon.Type: ApplicationFiled: May 21, 2008Publication date: November 26, 2009Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: BRUCE H. ASMUS, BRIAN R. BUTLER, RAY ADNEY, TIMOTHY G.J. EHR
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Patent number: 7618379Abstract: Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip designs including coiled safety/shaping structures are also disclosed.Type: GrantFiled: December 30, 2005Date of Patent: November 17, 2009Assignee: Boston Scientific Scimed, Inc.Inventors: Brian Reynolds, Peter Skujins, Brice Shireman, Bruce H. Asmus, Ron Tanaka, Michael Swee
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Patent number: 7074197Abstract: Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip designs including coiled safety/shaping structures are also disclosed.Type: GrantFiled: February 28, 2002Date of Patent: July 11, 2006Assignee: Scimed Life Systems, Inc.Inventors: Brian Reynolds, Peter Skujins, Brice Shireman, Bruce H. Asmus, Ron Tanaka, Michael Swee
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Publication number: 20030069521Abstract: Alternative designs, materials and manufacturing methods for guidewires. Some embodiments pertain to a composite guidewire having proximal and distal section, and a connector adapted and configured for permanently joining the proximal section to the distal section. In some embodiments, at least one of the sections is made of a linear-elastic nickel-titanium alloy. Several alternative guidewire tip designs including coiled safety/shaping structures are also disclosed.Type: ApplicationFiled: February 28, 2002Publication date: April 10, 2003Inventors: Brian Reynolds, Peter Skujins, Brice Shireman, Bruce H. Asmus, Ron Tanaka, Michael Swee