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公开(公告)号：US20220117762A1
公开(公告)日：2022-04-21
申请号：US17562592
申请日：2021-12-27
摘要： 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：US20210106729A1
公开(公告)日：2021-04-15
申请号：US17068526
申请日：2020-10-12
摘要： 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.
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3.发明申请公开(公告)号：US20200298332A1
公开(公告)日：2020-09-24
申请号：US16897784
申请日：2020-06-10
摘要： The present disclosure is directed to a multi-segment device, such as an intravascular guide wire. The multi-segment device includes an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end by a solid-state weld, and a heat affected zone surrounding an interface of the weld where the first and second portions are joined together, wherein the heat affected zone has an average thickness of less than about 0.20 mm.
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公开(公告)号：US10556287B2
公开(公告)日：2020-02-11
申请号：US15438502
申请日：2017-02-21
IPC分类号： B23K1/20 , B23K3/06 , B23K35/02 , B23K35/30 , C23C2/00 , C23C2/02 , C23C2/04 , C23C2/26 , C23C2/38 , B23K1/08 , C23C2/08 , B23K1/00 , B05C3/172 , B05C3/00 , B23K101/32
摘要： A method of pretinning a guidewire core made of shape memory alloy and having an elongate axis, comprising: placing a ball of solder in a pocket in a soldering block; melting the ball of solder; holding a guidewire core over the ball of solder; lowering the guidewire core into the ball of solder; removing the guidewire from the ball of solder.
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公开(公告)号：US10441445B2
公开(公告)日：2019-10-15
申请号：US15429339
申请日：2017-02-10
发明人： Pamela A. Kramer-Brown , Kayla L. Calvert , John A. Simpson , Stephen D. Pacetti , Austin M. Leach
IPC分类号： C22C19/07 , A61F2/82 , A61F2/06 , A61L31/02 , A61L31/18 , C22C1/04 , C22C19/05 , C22C27/00 , C22C27/04 , C22C27/06
摘要： Embodiments are directed to radiopaque implantable structures (e.g., stents) formed of cobalt-based alloys that comprise cobalt, chromium and one or more platinum group metals, refractory metals, precious metals, or combinations thereof. Platinum group metals include platinum, palladium, ruthenium, rhodium, osmium, and iridium. Refractory metals include zirconium, niobium, rhodium, molybdenum, hafnium, tantalum, tungsten, rhenium, and precious metals include silver and gold. In one embodiment, the one or more included platinum group or refractory metals substitute at least partially for nickel, such that the alloy exhibits reduced nickel content, or is substantially nickel free. The stents exhibit improved radiopacity as compared to similar alloys including greater amounts of nickel.
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公开(公告)号：US10071229B2
公开(公告)日：2018-09-11
申请号：US14686175
申请日：2015-04-14
发明人： John A. Simpson , Bruce M. Wilson
CPC分类号： A61M25/09 , A61M2025/09091 , A61M2025/09108 , A61M2025/09133 , A61M2025/0915
摘要： The present disclosure is directed to multi-segment intraluminal guide wires including an elongate distal portion comprising a first metallic material (e.g., nitinol), an elongate proximal portion comprising a second metallic material (e.g., stainless steel). The distal and proximal portions may be directly joined together end to end by a solid-state weld joint. A diameter of the weld region surrounding the weld joint on either side of the weld joint may be reduced (e.g., ground down) relative to the diameter of the distal and proximal portions of the guide wire on either side of the weld region. A stiffness adjusting sleeve may be disposed over the weld joint so that a transition profile of bending stiffness across the weld region is gradual, rather than abrupt across the distal portion of the guide wire to the proximal portion of the guide wire. A polymer jacket may cover the sleeve and distal portion.
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公开(公告)号：US20180236581A1
公开(公告)日：2018-08-23
申请号：US15438502
申请日：2017-02-21
IPC分类号： B23K1/20 , B23K3/06 , B23K35/02 , B23K35/30 , C23C2/00 , C23C2/02 , C23C2/04 , C23C2/26 , C23C2/38
摘要： A method of pretinning a guidewire core made of shape memory alloy and having an elongate axis, comprising: placing a ball of solder in a pocket in a soldering block; melting the ball of solder; holding a guidewire core over the ball of solder; lowering the guidewire core into the ball of solder; removing the guidewire from the ball of solder.
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公开(公告)号：US20170105856A1
公开(公告)日：2017-04-20
申请号：US14885926
申请日：2015-10-16
IPC分类号： A61F2/90
CPC分类号： A61F2/90 , A61F2220/0033 , A61F2240/00 , A61F2240/001 , A61F2250/0098
摘要： A scaffold includes a marker connected to a strut. The marker is retained within the strut by a tongue-and-groove connection. The marker is attached to the strut by a process that includes pressing a non-circular marker into a rectangular hole of the scaffold strut. The strut sidewalls are restrained to produce the tongue and groove connection.
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公开(公告)号：US09539368B2
公开(公告)日：2017-01-10
申请号：US15176297
申请日：2016-06-08
IPC分类号： A61M5/00 , A61M25/00 , A61M29/00 , A61L29/14 , A61L29/04 , A61L29/06 , A61L29/08 , A61M25/10
CPC分类号： A61L29/14 , A61L29/041 , A61L29/06 , A61L29/085 , A61M25/0009 , A61M25/0045 , A61M25/005 , A61M25/10 , A61M25/1006 , A61M25/104 , A61M2025/1061 , C08L23/06 , C08L77/00
摘要： Elongate, flexible catheter includes a shaft having a proximal end, a distal end, and a lumen extending therein. The shaft has an inner layer comprising an amorphous polyamide having a Shore D durometer value of greater than 78, and an outer layer comprising a semi-crystalline polyamide or copolyamide having a Shore D durometer value of less than 76. The outer layer is thinner than the inner layer. The shaft has an increased resistance to kinking as compared to a similar shaft of a single layer of the amorphous polyamide having a Shore D durometer value of greater than 78.
摘要翻译： 细长的柔性导管包括具有近端，远端和在其中延伸的内腔的轴。 轴具有内层，其包含肖氏D硬度值大于78的无定形聚酰胺，外层包含肖氏D硬度值小于76的半结晶聚酰胺或共聚酰胺。外层比 内层。 与具有大于78的肖氏D硬度值的无定形聚酰胺的单层类似的轴相比，轴具有增加的扭结阻力。
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公开(公告)号：US20170000986A1
公开(公告)日：2017-01-05
申请号：US15265259
申请日：2016-09-14
发明人： Ramon Arana , Daniel Brown , Curt A. Novak , Justin K. Mann , John A. Simpson , Bruce M. Wilson , Leonard D. Barnod
CPC分类号： A61M25/1027 , A61M25/0054 , A61M25/0069 , A61M25/1006 , A61M25/1034 , A61M25/104 , A61M2025/1061 , A61M2025/1093 , A61M2205/32 , B29C65/48 , B29C66/10 , B29L2031/7543
摘要： Method of forming a balloon catheter includes providing an elongate tubular shaft having an outer tubular member having proximal and distal portions, and an inner tubular member having a distal length extending distally from the distal portion of the outer tubular member. The elongate tubular shaft has an inflation lumen and a guidewire lumen defined therein. The guidewire lumen extends along at least the distal length of inner tubular member. The method also includes coupling a distal end section to a distal end of the inner tubular member and having a proximal end and a distal end. The method also includes coupling a proximal end of a balloon to the distal portion of the outer tubular member, and coupling a distal portion of the balloon to the distal end section. The balloon has a working length between the proximal end and the distal end. The balloon defines an inner chamber. The proximal end of the distal end section is disposed within the inner chamber.
摘要翻译： 形成球囊导管的方法包括提供细长的管状轴，其具有具有近端部分和远端部分的外部管状部件，以及内部管状部件，其具有从外部管状部件的远端部向远端延伸的远端长度。 细长管状轴具有限定在其中的充气腔和导丝腔。 导丝腔至少延伸至内管状构件的远端长度。 该方法还包括将远端部分连接到内部管状构件的远端并且具有近端和远端。 该方法还包括将球囊的近端联接到外部管状构件的远端部分，以及将球囊的远端部分联接到远端部分。 气球具有在近端和远端之间的工作长度。 气球限定内腔。 远端部分的近端设置在内腔内。
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