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    • 3. 发明授权
    • Multi-lumen catheter with separate distal tips
    • 多腔导管带有独立的远端尖端
    • US07393339B2
    • 2008-07-01
    • US10371774
    • 2003-02-21
    • John A. ZawackiKelly B. PowersJohn G. EvansGuy Rome
    • John A. ZawackiKelly B. PowersJohn G. EvansGuy Rome
    • A61M3/00A61M37/00
    • A61M25/0026A61M1/3653A61M1/3659A61M1/3661A61M25/0009A61M25/007A61M25/0074A61M2025/0031A61M2025/0037
    • A multi-lumen catheter defined by at least two separate tip sections distal to a dividing point includes strategic placement of openings in the tip sections to facilitate fluid flow and minimize typical problems associated with catheters. In a multi-lumen catheter having tip sections with a releasably joined or splittable region, the bond strength between the tip sections is varied along their length such that an increasing separation force is required to separate the tip sections from one another distal to the dividing point. Delivery of a multi-lumen catheter is improved with respect to both sheathed and non-sheathed delivery methods, in which a friction reducing structure is provided on either the catheter, delivery sheath or both to provide a buffer for a sheathed delivery and in which a unique guidewire aperture or additional lumen is provided in at least one of the tip sections for a non-sheathed delivery.
    • 由远离分割点的至少两个分离的尖端部分限定的多腔导管包括在尖端部分中的开口的战略放置以便于流体流动并且最小化与导管相关联的典型问题。 在具有具有可释放地接合或可分开区域的末端部分的多腔导管中,末端部分之间的粘合强度沿其长度变化,使得需要增加的分离力以将尖端部分彼此远离分割点 。 相对于护套和非护套递送方法,多腔导管的输送得到改进,其中在导管,输送护套或两者上设置减摩结构以提供用于护套输送的缓冲器,其中 在至少一个尖端部分中提供独特的导丝孔或额外的内腔用于非护套输送。
    • 5. 发明授权
    • Catheter connection and repair system
    • 导管连接和修理系统
    • US06971390B1
    • 2005-12-06
    • US10071378
    • 2002-02-05
    • Jeffrey A. VasekJohn A. Zawacki
    • Jeffrey A. VasekJohn A. Zawacki
    • A61M25/00A61M39/02A61M39/10A61M39/12F16L33/00F16L33/22F16M16/00
    • A61M39/12A61M25/0097A61M39/0208A61M39/1011A61M2039/1033F16L33/223Y10T403/10
    • A system for effecting fluid-tight coupling and mechanical joinder between a medical device and a catheter tube. An elongated catheter connection stem attached to the medical device is received in the lumen of the catheter. A catheter securement collar is advanced proximally along the exterior of the catheter and connection stem inside the catheter into the assembled condition of the connection system, passing a locking ring on the interior of the securement collar over an enlargement on the distal end of the connection stem. Maximum catheter compression occurs at the locking ring, while a void internal of the catheter system is filled with an enlarged securement lip of catheter material. Distal of maximum catheter wall compression, the catheter traverses a tortuous path between the locking ring and the enlargement, around the shoulder of the enlargement, and along the adjacent surface of the enlargement.
    • 用于在医疗装置和导管管之间进行流体密封联接和机械连接的系统。 附接到医疗装置的细长的导管连接杆容纳在导管的内腔中。 导管固定套环沿着导管的外部和导管内部的连接杆向近侧前进到连接系统的组装状态,将锁定环通过固定环的内部在连接杆的远端上的放大图上 。 在锁定环处发生最大的导管压缩,而导管系统内部的空隙填充有放大的导管材料的固定唇。 最大导管壁压缩的远端,导管穿过锁定环与扩大部之间的曲折路径,围绕放大的肩部,并沿着放大的相邻表面。