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    • 8. 发明申请
    • CATHETER WITH VARIABLE ARCUATE DISTAL SECTION
    • 具有可变电极远程部分的导管
    • US20130006238A1
    • 2013-01-03
    • US13174742
    • 2011-06-30
    • Tom Allen DitterDiana GallardoShahram MoaddebMichael Olen Zirkle
    • Tom Allen DitterDiana GallardoShahram MoaddebMichael Olen Zirkle
    • A61B18/14
    • A61B18/1492A61B5/0422A61B5/0538A61B5/062A61B5/6857A61B2017/00867A61B2018/00029A61B2018/00214A61B2018/00351A61B2018/00357A61B2018/00375A61B2018/00577A61B2018/00821A61B2018/00839A61B2018/00875A61B2018/1407A61B2018/1432A61B2018/1435A61B2018/1467A61B2034/2051A61B2034/2063A61B2090/065A61B2217/007
    • A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other. In a more detailed embodiment, the catheter has a distal assembly with a helical form or a crescent form carrying a plurality of irrigated ablation ring electrodes and a plurality of smaller ring electrodes adapted for impedance recording or PV potential recording. A support member with shape memory extends through the distal assembly to provide the helical or crescent form. The support member has a varying stiffness along its length, for example, a decreasing stiffness toward a distal end of the support member. The support member can also be hollow so that it can receive a mandrel whose stiffness is greater than that of the support member.
    • 导管包括细长体,具有限定大致圆形形状的形状记忆构件的远端组件和适于致动用于偏转细长体的一部分的偏转牵引线的控制手柄,以及用于收缩一般的收缩线 圆形 承载至少一个环形电极的大致圆形形状具有相对于细长主体的非边缘构造,使得细长主体的纵向轴线不与圆形的圆周相交,并且大致圆形的形状围绕纵向轴线螺旋 的细长的身体。 此外,圆形形状可以具有轴上构造,使得细长体的纵向轴线与圆形的中心纵向轴线轴向对齐,或者离轴构造使得这些轴线彼此轴向偏移 。 在更详细的实施例中,导管具有远端组件,其具有螺旋形式或月牙形,其携带多个灌溉消融环电极和适于阻抗记录或PV电位记录的多个较小环形电极。 具有形状记忆的支撑构件延伸穿过远端组件以提供螺旋形或新月形。 支撑构件沿其长度具有变化的刚度,例如朝向支撑构件的远端的刚度的降低。 支撑构件也可以是中空的,使得其可以容纳其刚度大于支撑构件的刚度的心轴。
    • 9. 发明授权
    • Catheter with variable arcuate distal section
    • 导管与可变弓形远端截面
    • US09220433B2
    • 2015-12-29
    • US13174742
    • 2011-06-30
    • Tom Allen DitterDiana GallardoShahram MoaddebMichael Olen Zirkle
    • Tom Allen DitterDiana GallardoShahram MoaddebMichael Olen Zirkle
    • A61B18/14A61B5/042A61B5/00A61B5/053A61B17/00A61B18/00A61B5/06A61B19/00
    • A61B18/1492A61B5/0422A61B5/0538A61B5/062A61B5/6857A61B2017/00867A61B2018/00029A61B2018/00214A61B2018/00351A61B2018/00357A61B2018/00375A61B2018/00577A61B2018/00821A61B2018/00839A61B2018/00875A61B2018/1407A61B2018/1432A61B2018/1435A61B2018/1467A61B2034/2051A61B2034/2063A61B2090/065A61B2217/007
    • A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other. In a more detailed embodiment, the catheter has a distal assembly with a helical form or a crescent form carrying a plurality of irrigated ablation ring electrodes and a plurality of smaller ring electrodes adapted for impedance recording or PV potential recording. A support member with shape memory extends through the distal assembly to provide the helical or crescent form. The support member has a varying stiffness along its length, for example, a decreasing stiffness toward a distal end of the support member. The support member can also be hollow so that it can receive a mandrel whose stiffness is greater than that of the support member.
    • 导管包括细长体,具有限定大致圆形形状的形状记忆构件的远端组件和适于致动用于偏转细长体的一部分的偏转牵引线的控制手柄,以及用于收缩一般的收缩线 圆形 承载至少一个环形电极的大致圆形形状具有相对于细长主体的非边缘构造,使得细长主体的纵向轴线不与圆形的圆周相交,并且大致圆形的形状围绕纵向轴线螺旋 的细长的身体。 此外,圆形形状可以具有轴上构造,使得细长体的纵向轴线与圆形的中心纵向轴线轴向对齐,或者离轴构造使得这些轴线彼此轴向偏移 。 在更详细的实施例中,导管具有远端组件,其具有螺旋形式或月牙形,其携带多个灌溉消融环电极和适于阻抗记录或PV电位记录的多个较小环形电极。 具有形状记忆的支撑构件延伸穿过远端组件以提供螺旋形或新月形。 支撑构件沿其长度具有变化的刚度,例如朝向支撑构件的远端的刚度的降低。 支撑构件也可以是中空的,使得其可以容纳其刚度大于支撑构件的刚度的心轴。