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    • 4. 发明授权
    • Side actuated lead connector assembly for implantable tissue stimulation device
    • 用于可植入组织刺激装置的侧面致动引线连接器组件
    • US06428368B1
    • 2002-08-06
    • US09817945
    • 2001-03-26
    • Rodney J. HawkinsWisit LimBuehl E. Truex
    • Rodney J. HawkinsWisit LimBuehl E. Truex
    • H01R1718
    • A61N1/3752H01R13/5224H01R13/629
    • A setscrewless connector assembly mounted on an implantable tissue stimulation device has an actuator mechanism for fixing, sealing and electrically isolating one or more electrical leads inserted into one or more corresponding lead receptacles within the connector assembly. Fixing and sealing of a lead are accomplished by compressing a resilient lead lock seal of O-ring shape, disposed in an annular recess, with a lip portion of a plunger drawn toward a molded support by the actuator mechanism. In a preferred embodiment, constant-force, high resolution compression of the lead lock seal by the plunger is provided by an actuator comprising a longitudinally extending shaft having a threaded end threadedly coupled to the plunger and an opposite end disposed within the molded support. A driver element, accessible from a side of the connector assembly, is coupled to the opposite end of the threaded shaft. The actuator preferably includes a transmission in which the driver element is journaled in a side wall of the molded support and includes a driver bevel gear in mesh with a driven bevel gear mounted on the opposite end of the threaded shaft. The mechanism is actuated by rotating the driver element by means of a torque limiting wrench. Actuation of the lead fixing and sealing mechanism from the side of the assembly allows insertion and removal of an electrical lead without obstruction.
    • 安装在可植入组织刺激装置上的固定式连接器组件具有致动器机构,用于固定,密封和电隔离插入到连接器组件内的一个或多个对应的引线插座中的一个或多个电引线。 引线的固定和密封通过压缩设置在环形凹部中的O形环的弹性引线锁定密封件来实现,其中柱塞的唇部被致动器机构拉向模制支撑件。 在优选实施例中,通过柱塞由引导锁定密封件的恒定力,高分辨率压缩提供,该致动器包括纵向延伸的轴,其具有螺纹连接到柱塞的螺纹端和设置在模制支撑件内的相对端。 从连接器组件的一侧可接近的驱动元件联接到螺纹轴的相对端。 致动器优选地包括传动装置,其中驱动元件在模制支撑件的侧壁中轴颈支撑,并且包括与安装在螺纹轴的相对端上的从动锥齿轮啮合的驱动伞齿轮。 通过扭矩限制扳手旋转驱动元件来致动机构。 引线固定和密封机构从组件侧的致动允许插入和移除电引线而没有障碍物。
    • 5. 发明授权
    • Setscrewless connector assembly for implantable medical devices
    • 用于可植入医疗设备的无螺丝连接器组件
    • US5951595A
    • 1999-09-14
    • US852161
    • 1997-05-06
    • Sheldon B. MobergBuehl E. TruexAlfred D. Acken, deceasedClyde K. NasonWilliam H. Stutz, Jr.Edward Gene Rourke
    • Sheldon B. MobergBuehl E. TruexAlfred D. Acken, deceasedClyde K. NasonWilliam H. Stutz, Jr.Edward Gene Rourke
    • A61N1/375H01R13/52H01R24/58H01R17/18
    • H01R13/5224A61N1/3752H01R24/58H01R2107/00H01R2201/12Y10S439/909
    • A connector assembly mounted on an implantable cardiac stimulation device has an actuator mechanism for fixing and sealing electrical leads inserted into lead receptacles within the connector assembly without the use of setscrews. Fixing and sealing of the leads is accomplished by compressing resilient lead lock seals of O-ring shape, disposed in annular recesses, with lip portions of a plunger drawn toward the molded support by the actuator mechanism. In a first embodiment of the actuator mechanism, rotation of a cam actuator transversely journaled within the support, using a torque wrench or similar tool, moves a cam slide attached to the plunger through a fixed displacement between lock and unlock positions as an offset camming portion of the actuator engages the surfaces of a slot within the cam slide. In a second embodiment, constant-force compression of the lead lock seals by the plunger is provided by using a torque wrench to rotate a screw actuator having one end coupled to the plunger and an opposite threaded end received within a screw block transversely disposed within the support. In a third embodiment, a rotatable toothed pinion engages a toothed slot within a slidable rack to provide incremental advancement of the rack, and thereby stepped displacement and force, with a resulting increased resolution. In a fourth embodiment, compliance provided by either a spring formed within the cam slide, or a spring nut mounted thereon, prevents excessive force from being exerted on leads of larger diameter.
    • 安装在可植入心脏刺激装置上的连接器组件具有致动器机构,用于固定和密封插入到连接器组件内的引线插座中的电引线,而不使用固定螺丝。 引线的固定和密封是通过压缩环形形状的弹性引线锁定密封件来实现的,该密封件设置在环形凹槽中,其中柱塞的唇部通过致动器机构朝模制支撑件拉出。 在致动器机构的第一实施例中,使用扭矩扳手或类似工具横向安装在支撑件内的凸轮致动器的旋转使附接到柱塞的凸轮滑块在锁定和解锁位置之间通过固定位移移动,作为偏移凸轮部分 执行机构接合凸轮滑块内的槽的表面。 在第二实施例中,通过使用扭矩扳手来旋转具有联接到柱塞的一端的螺钉致动器以及容纳在横向设置在所述柱塞内的螺纹块内的相对的螺纹端,由柱塞提供引线锁定密封件的恒定力压缩 支持。 在第三实施例中,可旋转的齿形小齿轮与可滑动齿条内的齿槽接合,以提供齿条的增量前进,并由此产生阶梯式的位移和力,从而产生增加的分辨率。 在第四实施例中,由形成在凸轮滑块内的弹簧或安装在其上的弹簧螺母提供的顺应性防止过大的力施加在较大直径的引线上。