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    Mechanisms for improving the stiffness transition across a dissimilar metal weld joint
    31.
    发明授权
    Mechanisms for improving the stiffness transition across a dissimilar metal weld joint 有权

    公开(公告)号：US11129970B2

    公开(公告)日：2021-09-28

    申请号：US16042515

    申请日：2018-07-23

    Applicant: Abbott Cardiovascular Systems, Inc.

    Inventor： John A. Simpson ,  Bruce M. Wilson

    IPC: A61M25/09

    Abstract: 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.

    MECHANISMS FOR IMPROVING THE STIFFNESS TRANSITION ACROSS A DISSIMILAR METAL WELD JOINT
    32.
    发明申请
    MECHANISMS FOR IMPROVING THE STIFFNESS TRANSITION ACROSS A DISSIMILAR METAL WELD JOINT 审中-公开

    公开(公告)号：US20180326187A1

    公开(公告)日：2018-11-15

    申请号：US16042515

    申请日：2018-07-23

    Applicant: Abbott Cardiovascular Systems, Inc.

    Inventor： John A. Simpson ,  Bruce M. Wilson

    IPC: A61M25/09

    CPC classification number: A61M25/09 ,  A61M2025/09091 ,  A61M2025/09108 ,  A61M2025/09133 ,  A61M2025/0915

    Abstract: 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.

    CATHETER HAVING TRANSITIONING SHAFT SEGMENTS
    35.
    发明申请
    CATHETER HAVING TRANSITIONING SHAFT SEGMENTS 审中-公开
    具有过渡轴段的导管

    公开(公告)号：US20160074636A1

    公开(公告)日：2016-03-17

    申请号：US14950414

    申请日：2015-11-24

    Applicant: Abbott Cardiovascular Systems Inc.

    Inventor： Ramon Arana ,  Daniel Brown ,  Curt A. Novak ,  Justin K. Mann ,  John A. Simpson ,  Bruce M. Wilson ,  Leonard D. Barbod

    IPC: A61M25/10 ,  A61M25/00

    CPC classification number: A61M25/1027 ,  A61M25/0054 ,  A61M25/0069 ,  A61M25/1006 ,  A61M25/1034 ,  A61M25/104 ,  A61M2025/1061 ,  A61M2025/1093 ,  A61M2205/32 ,  B29C65/48 ,  B29C66/10 ,  B29L2031/7543

    Abstract: Balloon catheter includes 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 balloon catheter also includes a distal end section coupled to a distal end of the inner tubular member and having a proximal end and a distal end. The balloon catheter also includes a balloon having a proximal portion sealingly coupled to the distal portion of the outer tubular member, a distal portion sealingly coupled to the distal end section, and a working length therebetween. The balloon defines an inner chamber. The proximal end of the distal end section is disposed within the inner chamber.

    Abstract translation: 气囊导管包括细长管状轴，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。 球囊导管还包括联接到内管状构件的远端并具有近端和远端的远端部分。 球囊导管还包括气囊，其具有密封地联接到外部管状构件的远端部分的近侧部分，密封地联接到远端部分的远侧部分以及它们之间的工作长度。 气球限定内腔。 远端部分的近端设置在内腔内。

    GUIDE WIRE CORE WITH IMPROVED TORSIONAL DUCTILITY
    37.
    发明申请
    GUIDE WIRE CORE WITH IMPROVED TORSIONAL DUCTILITY 审中-公开
    指导线改善扭转力度

    公开(公告)号：US20150094616A1

    公开(公告)日：2015-04-02

    申请号：US14499856

    申请日：2014-09-29

    Applicant: Abbott Cardiovascular Systems, Inc.

    Inventor： John A. Simpson ,  Jeffrey F. Dooley

    IPC: A61M25/09

    CPC classification number: A61M25/09 ,  A61M2025/09108 ,  A61M2025/09133 ,  A61M2025/0915 ,  A61M2025/09175 ,  Y10T29/49

    Abstract: Guide wires including a guide wire tip portion including a distal tip portion and a proximal tip portion, where the tip portion includes a circular cross-section and substantially constant diameter along both a linear elastic distal tip portion and a superelastic proximal tip portion. Methods for manufacture include providing a superelastic wire (e.g., nitinol) including a length so as to define both a distal tip portion and a proximal tip portion. The distal tip portion is cold worked, without imparting significant cold work to the proximal tip portion, to provide linear elastic properties within the distal tip portion, while the proximal tip portion maintains superelastic properties. The tip portion is ground or otherwise reduced in cross-sectional thickness after cold working of the distal tip portion, so as to provide a circular cross-section having a desired substantially constant diameter along both the distal tip portion and the proximal tip portion.

    Abstract translation: 引导线，其包括包括远侧末端部分和近端部分的导丝末端部分，其中所述尖端部分包括具有圆形横截面且沿直线弹性远端尖端部分和超弹性近端部部分具有基本上恒定的直径。 制造方法包括提供包括长度的超弹性线（例如镍钛诺），以便限定远侧末端部分和近端部分。 远侧末端部分被冷加工，而不会对近侧尖端部分施加显着的冷作用，以在远侧末端部分内提供线性弹性特性，而近侧尖端部分保持超弹性。 在远端部分的冷加工之后，尖端部分被研磨或以其它方式减小横截面厚度，以便提供沿着远侧末端部分和近端部分具有期望的基本上恒定的直径的圆形横截面。

    GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS
    38.
    发明申请
    GUIDE WIRE WITH CORE HAVING WELDED WIRE SEGMENTS 审中-公开
    带有焊接线段的芯线指导线

    公开(公告)号：US20140246407A1

    公开(公告)日：2014-09-04

    申请号：US14273294

    申请日：2014-05-08

    Applicant: Abbott Cardiovascular Systems Inc.

    Inventor： John A. Simpson ,  Michael Plattner ,  Frank Manning ,  Ryan Grandfield ,  Wayne E. Cornish

    IPC: A61M25/09 ,  B23K11/02

    CPC classification number: A61M25/09 ,  A61M25/0009 ,  A61M2025/09083 ,  A61M2025/09108 ,  A61M2025/09133 ,  A61M2025/09141 ,  B23K11/02 ,  B23K15/0046 ,  B23K20/129 ,  B23K26/26 ,  B23K26/282 ,  Y10T29/49826

    Abstract: An intravascular guide wire having two core materials joined together without the use of a connector tube or sleeve, the core materials being stainless steel and psuedoelastic metal alloy, nitinol. The core materials are joined to each other through an intermediate transition piece made essentially of nickel, which is welded on either side to the two core materials. In a multi-segment intravascular guide wire, discrete, high modulus and medium modulus core portions of different materials are welded to a shapeable, low modulus distal core portion made of a third material having a flattened, shapeable section at a most distal end that is not welded to but made from the distal core portion, so the flattened, shapeable section can be deformed to create a steerable tip. Processes such as simultaneous resistance and friction welding can be used to join the core portions.

    Abstract translation: 一种血管内导丝，其两芯结合在一起，而不使用连接管或套筒，芯材为不锈钢和伪弹性金属合金，镍钛诺。 核心材料通过基本上由镍制成的中间过渡件相互连接，该中间过渡件在两侧焊接到两个芯材上。 在多段血管内引导线中，将不同材料的离散，高模量和中等模量和中等模量的芯部分焊接到由第三材料制成的可成形的低模量的远端芯部分，该第三材料在最远端具有扁平的，可成形的截面， 未被焊接到远端芯部制成，因此可以使扁平的可成形部分变形以产生可转向的尖端。 可以使用诸如同时电阻和摩擦焊接的工艺来连接芯部。

    CATHETER HAVING TRANSITIONING SHAFT SEGMENTS
    39.
    发明申请
    CATHETER HAVING TRANSITIONING SHAFT SEGMENTS 审中-公开
    具有过渡轴段的导管

    公开(公告)号：US20140163466A1

    公开(公告)日：2014-06-12

    申请号：US14180550

    申请日：2014-02-14

    Applicant: Abbott Cardiovascular Systems Inc.

    Inventor： Ramon Arana ,  Daniel Brown ,  Curt A. Novak ,  Justin K. Mann ,  John A. Simpson ,  Bruce M. Wilson ,  Leonard D. Barbod

    IPC: A61M25/10

    CPC classification number: A61M25/1027 ,  A61M25/0054 ,  A61M25/0069 ,  A61M25/1006 ,  A61M25/1034 ,  A61M25/104 ,  A61M2025/1061 ,  A61M2025/1093 ,  A61M2205/32 ,  B29C65/48 ,  B29C66/10 ,  B29L2031/7543

    Abstract: Balloon catheter includes 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 balloon catheter also includes a distal end section coupled to a distal end of the inner tubular member and having a proximal end and a distal end. The balloon catheter also includes a balloon having a proximal portion sealingly coupled to the distal portion of the outer tubular member, a distal portion sealingly coupled to the distal end section, and a working length therebetween. The balloon defines an inner chamber. The proximal end of the distal end section is disposed within the inner chamber.

    Abstract translation: 气囊导管包括细长管状轴，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。 球囊导管还包括联接到内管状构件的远端并具有近端和远端的远端部分。 球囊导管还包括气囊，其具有密封地联接到外部管状构件的远端部分的近端部分，密封地联接到远端部分的远侧部分以及它们之间的工作长度。 气球限定内腔。 远端部分的近端设置在内腔内。

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