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公开(公告)号：US12150872B2
公开(公告)日：2024-11-26
申请号：US18217833
申请日：2023-07-03
Applicant: Abbott Cardiovascular Systems, Inc.
Inventor： John A. Simpson , Puneet Kamal Singh Gill , Pamela A. Kramer-Brown
IPC: C22C19/07 , A61F2/06 , A61F2/82 , A61L31/02 , A61L31/18 , C22C1/04 , C22C19/05 , C22C27/00 , C22C27/04 , C22C27/06
Abstract: 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.
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公开(公告)号：US20230414905A1
公开(公告)日：2023-12-28
申请号：US18244417
申请日：2023-09-11
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Puneet Kamal Singh Gill , Jonathan P. Durcan , Jessica Saenz
IPC: A61M25/09 , B23K26/352
CPC classification number: A61M25/09 , B23K26/355 , A61M2025/09083 , B23K2101/32
Abstract: 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.
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公开(公告)号：US11779477B2
公开(公告)日：2023-10-10
申请号：US17562592
申请日：2021-12-27
Applicant: Abbott Cardiovascular Systems, Inc.
Inventor： John A. Simpson , Puneet Kamal Singh Gill , Pamela A. Kramer-Brown
IPC: C22C19/07 , A61F2/82 , C22C1/04 , A61L31/18 , A61L31/02 , A61F2/06 , C22C19/05 , C22C27/06 , C22C27/04 , C22C27/00
CPC classification number: A61F2/82 , A61F2/06 , A61L31/022 , A61L31/18 , C22C1/0433 , C22C19/07 , A61F2250/0098 , C22C19/05 , C22C27/00 , C22C27/04 , C22C27/06
Abstract: 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).
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公开(公告)号：US20210128883A1
公开(公告)日：2021-05-06
申请号：US16670888
申请日：2019-10-31
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Puneet Kamal Singh Gill , Jonathan P. Durcan , Jessica Saenz
IPC: A61M25/09 , B23K26/352
Abstract: 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.
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公开(公告)号：US20210128872A1
公开(公告)日：2021-05-06
申请号：US16670991
申请日：2019-10-31
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Roozbeh Kalhor , Matthew Vasquez , Puneet Kamal Singh Gill , Jonathan P. Durcan
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20250090183A1
公开(公告)日：2025-03-20
申请号：US18912303
申请日：2024-10-10
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Puneet Kamal Singh Gill , Jonathan Durcan , Jakub Truty , Matthew J. Chludzinski , John Simpson
Abstract: 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.
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公开(公告)号：US20240374870A1
公开(公告)日：2024-11-14
申请号：US18144607
申请日：2023-05-08
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Puneet Kamal Singh Gill , Robert Hayzelden , Stephanie Maldonado , Jessica Marie Saenz , Matthew Vasquez
IPC: A61M25/09
Abstract: A guidewire for use in the vasculature is formed inside a vessel into an extended U-shaped section at the distal end. The extended U-shaped distal section is able to more easily advance through tortuous vasculature or calcified lesions.
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公开(公告)号：US12137923B2
公开(公告)日：2024-11-12
申请号：US17891060
申请日：2022-08-18
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Puneet Kamal Singh Gill , Jonathan Durcan , Jakub Truty , Matthew J. Chludzinski , John Simpson
Abstract: 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.
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公开(公告)号：US20240156474A1
公开(公告)日：2024-05-16
申请号：US18416533
申请日：2024-01-18
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Robert C. Hayzelden , Puneet Kamal Singh Gill
CPC classification number: A61B17/22 , A61M25/09 , A61B2017/22038 , A61B2017/22094 , A61M2025/09083 , A61M2025/09108 , A61M2025/09166 , A61M2025/09191 , A61M2205/0238 , A61M2205/0266
Abstract: 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).
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公开(公告)号：US20230399725A1
公开(公告)日：2023-12-14
申请号：US18324749
申请日：2023-05-26
Applicant: Abbott Cardiovascular Systems, Inc.
Inventor： Donal F. Manley , Puneet Kamal Singh Gill , Diarmuid P. Meagher
CPC classification number: C22C30/00 , A61F2/82 , A61F2310/00035
Abstract: 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.
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