Patents by Inventor Puneet Kamal Singh Gill
Puneet Kamal Singh Gill 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: 11911051Abstract: A guidewire for use in intravascular procedures has a solder or weld joint at a distal end thereof. A plurality of dimples are formed on the solder/weld joint to increase the engagement and penetration of fibrous material including chronic total occlusions (CTO).Type: GrantFiled: October 31, 2019Date of Patent: February 27, 2024Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Robert C. Hayzelden, Puneet Kamal Singh Gill
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Patent number: 11904117Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.Type: GrantFiled: October 31, 2019Date of Patent: February 20, 2024Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan, Jessica Saenz
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Publication number: 20230414905Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Applicant: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan, Jessica Saenz
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Publication number: 20230399725Abstract: Radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, nickel, and platinum or another another metal having an atomic number or density greater than that of cobalt for increased radiopacity. In particular, processes are described for removing precipitate inclusions (e.g., tungsten rich precipitates) that render the alloy otherwise unsuitable for use in formation of a stent or similar implantable structure. The alloy with such precipitate inclusions can be heat treated within a narrow temperature range of about 1250° C. (e.g., 1225° C. to 1275° C.) for a time period in a narrow range of about 30 minutes (e.g., 20 to 40 minutes), to remove such precipitate inclusions. Higher temperatures and/or longer treatment times surprisingly do not resolve the precipitate inclusions, but treatment at about 1250° C. for about 30 minutes substantially removes the precipitates, resulting in a substantially homogenous structure suitable for use as a stent.Type: ApplicationFiled: May 26, 2023Publication date: December 14, 2023Inventors: Donal F. Manley, Puneet Kamal Singh Gill, Diarmuid P. Meagher
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Publication number: 20230338173Abstract: A stent comprising a cobalt-based alloy comprising 18-50 weight % cobalt (Co), 10-25 weight % chromium (Cr), 10-15 weight % tungsten (W), 0-2 weight % of manganese (Mn), 0-3 weight % iron (Fe), and 10-65 weight % metal member selected from a platinum group metal.Type: ApplicationFiled: July 3, 2023Publication date: October 26, 2023Inventors: John A. Simpson, Puneet Kamal Singh Gill, Pamela A. Kramer-Brown
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Patent number: 11779477Abstract: A stent having a cobalt-based alloy, wherein the cobalt-based alloy is free of nickel (Ni), the cobalt-based alloy including 10-65 weight % metal member selected from a platinum group metal, a refractory metal, or combinations thereof, 15-25 weight % chromium (Cr), 4-7 weight % molybdenum (Mo), 0-18 weight % iron (Fe), and 22-40 weight % cobalt (Co).Type: GrantFiled: December 27, 2021Date of Patent: October 10, 2023Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.Inventors: John A. Simpson, Puneet Kamal Singh Gill, Pamela A. Kramer-Brown
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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: 20220226617Abstract: A guidewire formed from drawn filled tubing having an inner core member encased in an outer layer. The inner core member is formed from a linear elastic or superelastic material and the outer layer is formed from a metal alloy such as 35N LT. A portion of the outer layer is ground down to form a feather edged joint between the outer layer and the inner core member.Type: ApplicationFiled: January 21, 2021Publication date: July 21, 2022Applicant: Abbott Cardiovascular Systems Inc.Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan, Matthew Vasquez
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Publication number: 20220117762Abstract: A stent having a cobalt-based alloy, wherein the cobalt-based alloy is free of nickel (Ni), the cobalt-based alloy including 10-65 weight % metal member selected from a platinum group metal, a refractory metal, or combinations thereof, 15-25 weight % chromium (Cr), 4-7 weight % molybdenum (Mo), 0-18 weight % iron (Fe), and 22-40 weight % cobalt (Co).Type: ApplicationFiled: December 27, 2021Publication date: April 21, 2022Inventors: John A. Simpson, Puneet Kamal Singh Gill, Pamela A. Kramer-Brown
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Patent number: 11298251Abstract: Embodiments are directed to radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, and nickel. Tungsten is present above its solubility limit (about 15%), but is still only present as a super-saturated, primarily single-phase material exhibiting an FCC microcrystalline structure.Type: GrantFiled: October 14, 2019Date of Patent: April 12, 2022Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.Inventors: John A. Simpson, Puneet Kamal Singh Gill, Pamela A. Kramer-Brown
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Publication number: 20210128875Abstract: A shaping tool is used to form a bend in the distal end of a guidewire. The guidewire distal end is inserted through a channel and into a cavity of the shaping tool. Using hand pressure, a first member is moved axially relative to a second member of the shaping tool, thereby moving the cavity relative to the channel and imparting a bend in the distal end of the guidewire.Type: ApplicationFiled: October 31, 2019Publication date: May 6, 2021Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan
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Publication number: 20210128872Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.Type: ApplicationFiled: October 31, 2019Publication date: May 6, 2021Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Roozbeh Kalhor, Matthew Vasquez, Puneet Kamal Singh Gill, Jonathan P. Durcan
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Publication number: 20210128181Abstract: A guidewire for use in intravascular procedures has a solder or weld joint at a distal end thereof. A plurality of dimples are formed on the solder/weld joint to increase the engagement and penetration of fibrous material including chronic total occlusions (CTO).Type: ApplicationFiled: October 31, 2019Publication date: May 6, 2021Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Robert C. Hayzelden, Puneet Kamal Singh Gill
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Publication number: 20210128883Abstract: A guidewire for use in intravascular procedures has an inner coil that is radiopaque and an outer coil that is non-radiopaque at the distal end of the guidewire. The radiopaque inner coil is visible under fluoroscopy so that the physician can monitor the location of the distal end of the guidewire during a procedure. The inner coil and the outer coil can be formed from a single wire or a multi-filar wire. The inner coil and the outer coil can have any of the following cross-sections for enhanced torquability: I-beam; vertical rectangular; vertical ellipse; square; peanut shape; vertical hexagonal; horizontal hexagonal; and horizontal ellipse.Type: ApplicationFiled: October 31, 2019Publication date: May 6, 2021Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.Inventors: Puneet Kamal Singh Gill, Jonathan P. Durcan, Jessica Saenz
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Publication number: 20210106729Abstract: Embodiments are directed to radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium, tungsten, and nickel, and methods for their manufacture. Tungsten is present above its solubility limit (about 15%) at ambient temperature, but is still only present as a super-saturated, primarily single-phase material exhibiting an FCC microcrystalline structure.Type: ApplicationFiled: October 12, 2020Publication date: April 15, 2021Inventors: John A. Simpson, Puneet Kamal Singh Gill
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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