Mechanisms for improving the stiffness transition across a dissimilar metal weld joint

    公开(公告)号:US10071229B2

    公开(公告)日:2018-09-11

    申请号:US14686175

    申请日:2015-04-14

    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
    12.
    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:US20170000986A1

    公开(公告)日:2017-01-05

    申请号:US15265259

    申请日:2016-09-14

    Abstract: 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.

    Abstract translation: 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。

    Catheter having transitioning shaft segments
    13.
    发明授权
    Catheter having transitioning shaft segments 有权
    导管具有过渡轴段

    公开(公告)号:US09216274B2

    公开(公告)日:2015-12-22

    申请号:US14180550

    申请日:2014-02-14

    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。

    Through tip for catheter
    15.
    发明授权

    公开(公告)号:US11383070B2

    公开(公告)日:2022-07-12

    申请号:US16565086

    申请日:2019-09-09

    Abstract: Catheter having an elongate tubular shaft including an inflation lumen and a guidewire lumen defined therein, the guidewire lumen extending along at least a distal length of an inner tubular member of the elongate tubular shaft. The catheter includes a distal tip member having a proximal end and a distal end, wherein the distal tip member is monolithic and the proximal end of the distal tip member is secured to a distal end of the inner tubular member. The catheter includes a balloon having a proximal portion and a distal portion, the proximal portion of the balloon sealingly coupled to the distal portion of the elongate tubular shaft. The distal portion of the balloon is sealingly coupled to the distal tip member and the balloon defines an inner chamber in communication with the inflation lumen, wherein the proximal end of the distal tip member is disposed within the inner chamber.

    CATHETER WITH STEPPED SKIVED HYPOTUBE
    18.
    发明申请
    CATHETER WITH STEPPED SKIVED HYPOTUBE 审中-公开
    带有步进滑块的导管

    公开(公告)号:US20140358074A1

    公开(公告)日:2014-12-04

    申请号:US14458327

    申请日:2014-08-13

    Abstract: Catheter having a hypotube with a skive defined by a first angled cut, an axial cut, and a second angled cut. A midshaft member includes a guidewire lumen and an inflation lumen in fluid communication with an inflation lumen of the hypotube, the inflation lumen of the midshaft member configured to receive at least a portion of the hypotube. A distal tabular shaft member extends distally from the midshaft member. The distal tubular shaft member has a guidewire lumen and an inflation lumen defined therein, the guidewire lumen of the distal tubular shaft member in fluid communication with the guidewire lumen of the midshaft member. The inflation lumen of the distal tubular shaft member is in fluid communication with the inflation lumen of the midshaft member and a balloon is coupled to the distal tubular shaft member and in fluid communication with the inflation lumen.

    Abstract translation: 导管具有由第一倾斜切口,轴向切口和第二倾斜切口限定的滑块的海波管。 中间轴构件包括导丝管腔和与海波管的充气腔流体连通的充气腔,所述中轴构件的充气腔配置成接收海波管的至少一部分。 远侧平板状轴构件从中间构件向远侧延伸。 远侧管状轴构件具有限定在其中的导丝管腔和充气腔,远侧管状轴构件的导丝管腔与中间构件的导丝管腔流体连通。 远侧管状轴构件的充气腔与中间构件的充气腔流体连通,球囊与远端管状轴构件联接并与膨胀腔流体连通。

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