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    • 3. 发明申请
    • SHAPE CONTROL OF CATHETERS BY USE OF MOVABLE INNER TUBE
    • 通过使用可移动的内管形成导管的形状控制
    • WO1997013542A1
    • 1997-04-17
    • PCT/US1996015307
    • 1996-09-25
    • GUIDED MEDICAL SYSTEMS, INC.GALEL, ZevKILICCI, CemKAMDAR, Kirti
    • GUIDED MEDICAL SYSTEMS, INC.
    • A61M25/00
    • A61M25/0041
    • A composite catheter is formed from the combination of a catheter body and an inner tubular member, the two components being slidable relative to one another. Both components are of resilient construction with shape memories for at least a portion of their lengths, and at least one shape memory includes a curved segment. The rigidities of the two components are selected to be either equal or different, and in some cases one of the components varies in rigidity in segments along its length. These parameters are selected such that when the inner tubular member is advanced or retracted within the catheter body, the shape of the composite of both components varies in a continuous gradation. Movement of the inner tubular member thus permits the user to adjust the length, shape and location of one or more curves in the catheter body and thereby adjust the catheter body to its optimal shape for any particular patient or procedure without removing the catheter from the patient's body.
    • 复合导管由导管主体和内部管状构件的组合形成,两个部件可相对于彼此滑动。 这两个部件具有弹性结构,其形状存储器用于其至少长度的一部分,并且至少一个形状记忆体包括弯曲部分。 两个部件的刚性被选择为相等或不同,并且在一些情况下,部件中的一个部件沿着其长度在段中的刚性变化。 选择这些参数使得当内部管状构件在导管主体内前进或缩回时,两个组件的复合材料的形状以连续的等级变化。 内部管状构件的移动因此允许使用者调节导管主体中的一个或多个曲线的长度,形状和位置,从而将导管主体调整到任何特定患者或程序的最佳形状,而不需要将患者的导管从患者的 身体。
    • 4. 发明申请
    • COMPOSITE GUIDE CATHETER WITH SHAPING ELEMENT
    • 复合导板与形状元件
    • WO1997010870A1
    • 1997-03-27
    • PCT/US1996015186
    • 1996-09-20
    • GUIDED MEDICAL SYSTEMS, INC.GALEL, ZevKILICCI, Cem
    • GUIDED MEDICAL SYSTEMS, INC.
    • A61M25/00
    • A61M25/0152A61M25/0041A61M25/0155
    • A guide catheter is formed from a combination of a tubular member with a large central lumen to accommodate working catheters, and one or more shape limiting rods insertable and movable longitudinally within the tubular member. The tubular member is resiliently flexible with a shape memory which imparts a curvature to the tubular member when it is relaxed. A reversible tensioning mechanism, operable from the proximal end of the tubular member, is used to straighten the tubular member prior to use. The shape limiting rod contains both permanently curved and flexible segments and causes the tubular member to retain a portion of its curvature when under tension. The location of this retained portion is determined by the position of the shape limiting rod inside the tubular member.
    • 引导导管由管状构件与大中央管腔的组合形成,以适应工作导管,以及一个或多个可插入并且可在管状构件内纵向移动的形状限制杆。 管状构件具有弹性柔性,具有形状记忆,其在放松时向管状构件施加曲率。 使用从管状构件的近端可操作的可逆张紧机构用于在使用前拉直管状构件。 形状限制杆包含永久弯曲和柔性段,并且使得管状构件在张力下保持其曲率的一部分。 该保持部分的位置由形状限制棒在管状部件内的位置决定。