Patents by Inventor Jonathan Durcan
Jonathan Durcan 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: 20230088749Abstract: A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.Type: ApplicationFiled: August 18, 2022Publication date: March 23, 2023Applicant: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Jonathan Durcan, Jakub Truty, Matthew J. Chludzinski, John Simpson
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Publication number: 20220409868Abstract: A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.Type: ApplicationFiled: August 26, 2022Publication date: December 29, 2022Applicant: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Raymundo Rodriguez, Jonathan Durcan, Robert Hayzelden, Michael Green
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Patent number: 11452533Abstract: A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.Type: GrantFiled: January 10, 2019Date of Patent: September 27, 2022Assignee: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Jonathan Durcan, Jakub Truty, Matthew J. Chludzinski, John Simpson
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Patent number: 11439795Abstract: A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.Type: GrantFiled: June 19, 2019Date of Patent: September 13, 2022Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Puneet Kamal Singh Gill, Raymundo Rodriguez, Jonathan Durcan, Robert Hayzelden, Michael Green
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Publication number: 20200398031Abstract: A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.Type: ApplicationFiled: June 19, 2019Publication date: December 24, 2020Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Puneet Kamal Singh Gill, Raymundo Rodriguez, Jonathan Durcan, Robert Hayzelden, Michael Green
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Publication number: 20200222067Abstract: A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.Type: ApplicationFiled: January 10, 2019Publication date: July 16, 2020Applicant: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Jonathan Durcan, Jakub Truty, Matthew J. Chludzinski, John Simpson
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Patent number: 8540927Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: GrantFiled: June 11, 2012Date of Patent: September 24, 2013Assignee: Abbott Cardiovascular Systems Inc.Inventors: Sean McNiven, Jonathan Durcan, Boyd V. Knott, Jeremy Stigall
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Publication number: 20120247649Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: ApplicationFiled: June 11, 2012Publication date: October 4, 2012Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Sean McNiven, Jonathan Durcan, Boyd V. Knott, Jeremy Stigall
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Patent number: 8221112Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: GrantFiled: April 21, 2011Date of Patent: July 17, 2012Assignee: Abbott Cardiovascular Systems, Inc.Inventors: Sean McNiven, Jonathan Durcan, Boyd V. Knott, Jeremy Stigall
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Publication number: 20110203739Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: ApplicationFiled: April 21, 2011Publication date: August 25, 2011Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Sean McNiven, Jonathan Durcan, Boyd V. Knott, Jeremy Stigall
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Patent number: 7947207Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: GrantFiled: September 15, 2006Date of Patent: May 24, 2011Assignee: Abbott Cardiovascular Systems Inc.Inventors: Sean McNiven, Jonathan Durcan, Boyd V. Knott, Jeremy Stigall
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Publication number: 20070142771Abstract: A balloon catheter having a multi-layered balloon which has a first layer and at least a second layer, and which has noncompliant limited radial expansion beyond the nominal diameter of the balloon. By selecting the polymeric materials forming the balloon layers, and arranging and radially expanding the multiple layers of the balloon in accordance with the invention, a balloon is provided having an improved low compliance, preferably in combination with high flexibility and softness.Type: ApplicationFiled: December 20, 2005Publication date: June 21, 2007Inventor: Jonathan Durcan
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Publication number: 20070061001Abstract: A sheath for temporarily protecting the drug coating on the surface of a stent after being mounted on a delivery catheter until just before use. The sheath is configured so as to enable its inner diameter to be temporarily increased to facilitate unrestricted fitment about and removal from the stent. Its inner diameter in its relaxed state is selected to be slightly less that the outer diameter of the mounted stent so as to positively grasp the stent and prevent dislodgement.Type: ApplicationFiled: September 13, 2005Publication date: March 15, 2007Inventors: Jonathan Durcan, Andrew McNiven
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Publication number: 20070006441Abstract: A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.Type: ApplicationFiled: September 15, 2006Publication date: January 11, 2007Inventors: Sean McNiven, Jonathan Durcan, Boyd Knott, Jeremy Stigall
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Publication number: 20060182833Abstract: The invention is directed to adjustable length mold assemblies for forming inflatable members and methods for using adjustable length mold assemblies for forming inflatable members, such as, for example, balloons for use with balloon catheters and stent delivery systems. The adjustable length mold assemblies comprise at least two mold pieces adapted to fit together, one mold piece having a surface configured to be slidably received by a bore of the other mold piece, the placement of one piece within the other defining a chamber of variable length which forms the mold. Each adjustable length mold assembly of the present invention is effective to form balloons, where if desired different balloons formed by a single mold may have different lengths. The adjustable length mold assemblies may also comprise a positioner to put a mold piece in a desired position relative to the other, and a locking mechanism to secure a mold piece in a desired position.Type: ApplicationFiled: April 13, 2006Publication date: August 17, 2006Inventors: Johann Skinner, Kerry Williams, Jonathan Durcan
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Publication number: 20060178721Abstract: A stent delivery balloon catheter having improved stent retention. In one embodiment, a stent mounted on the balloon catheter is embedded in an outer surface of an elastomeric sleeve on the catheter balloon such that the stent forms an imprint in the outer surface of the sleeve. One aspect of the invention is directed to a method of mounting a stent on the balloon catheter. The stent is securely mounted on the balloon due to the interference with the imprinted sleeve.Type: ApplicationFiled: February 10, 2005Publication date: August 10, 2006Inventors: Jonathan Durcan, Kerry Williams
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Publication number: 20050087913Abstract: The invention is directed to adjustable length mold assemblies for forming inflatable members and methods for using adjustable length mold assemblies for forming inflatable members, such as, for example, balloons for use with balloon catheters and stent delivery systems. The adjustable length mold assemblies comprise at least two mold pieces adapted to fit together, one mold piece having a surface configured to be slidably received by a bore of the other mold piece, the placement of one piece within the other defining a chamber of variable length which forms the mold. Each adjustable length mold assembly of the present invention is effective to form balloons, where if desired different balloons formed by a single mold may have different lengths. The adjustable length mold assemblies may also comprise a positioner to put a mold piece in a desired position relative to the other, and a locking mechanism to secure a mold piece in a desired position.Type: ApplicationFiled: November 16, 2004Publication date: April 28, 2005Inventors: Johann Skinner, Kerry Williams, Jonathan Durcan