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    • 3. 发明授权
    • Biocompatible ventricular assist and arrhythmia control device including
cardiac compression band-stay-pad assembly
    • 生物相容性心室辅助和心律失常控制装置,包括心脏压迫带 - 垫组件
    • US5383840A
    • 1995-01-24
    • US920732
    • 1992-07-28
    • Marlin S. HeilmanSteve A. KolenikChristopher D. CaponeCarl M. ParisiEdward K. PremVernon L. Speicher
    • Marlin S. HeilmanSteve A. KolenikChristopher D. CaponeCarl M. ParisiEdward K. PremVernon L. Speicher
    • A61M1/10A61H31/00
    • A61M1/1068A61M1/1046
    • A ventricular assist device for a heart includes a compression band-stay-pad assembly for encircling substantially the entire heart perimeter and comprising an elongated band member or chain disposed in a sealed protective structure filled with a lubricating medium. The band member may be fixed at one end and wound upon, or unwound from, a rotatable spool by a drive motor through a speed reducer. Force-transmitting support or stay assemblies are disposed in the protective structure between the band member and a resilient pad assembly for encircling the heart and promoting heart tissue ingrowth therein. The force-transmitting stay assemblies are biased circumferentially, and thus radially outward, by compression return springs disposed therebetween. The resilient pad assembly includes a corrugated surface provided with vertical coil springs, which help prevent damage to heart tissue and facilitate return of the pad assembly to an initial condition, embedded defibrillator electrodes and relatively soft portions to prevent damage to coronary arteries. The device may be constructed so that it can be surgically removed, except for a sealing film and an ingrown pad of the resilient pad assembly, which remain in situ on the heart. A net structure suspended below the device supports the apical portion of the heart.
    • 用于心脏的心室辅助装置包括用于围绕基本上整个心脏周边的压缩带状支架组件,并且包括设置在填充有润滑介质的密封保护结构中的细长带状构件或链条。 带构件可以固定在一端,并通过驱动电动机通过减速器缠绕在可旋转的卷轴上或从其释放。 力传递支撑件或支撑组件设置在带构件和弹性垫组件之间的保护结构中,用于环绕心脏并促进其中的心脏组织向内生长。 力传递支柱组件通过设置在它们之间的压缩复位弹簧周向地偏置,并因此被径向向外偏压。 弹性垫组件包括具有垂直螺旋弹簧的波纹表面,其有助于防止对心脏组织的损伤并且便于将垫组件返回到初始状态,嵌入的除颤器电极和相对较软的部分以防止损伤冠状动脉。 除了保留在心脏上的弹性垫组件的密封膜和内衬垫之外,该装置可被构造成能够手术除去。 悬挂在装置下面的网状结构支撑心脏的顶端部分。
    • 4. 发明授权
    • Biocompatible ventricular assist and arrhythmia control device including
cardiac compression pad and compression assembly
    • 生物相容性心室辅助和心律失常控制装置,包括心脏压缩垫和压缩组件
    • US5098369A
    • 1992-03-24
    • US522956
    • 1990-05-14
    • Marlin S. HeilmanSteve A. KolenikChristopher D. CaponeCarl M. ParisiEdward K. PremVernon L. Speicher
    • Marlin S. HeilmanSteve A. KolenikChristopher D. CaponeCarl M. ParisiEdward K. PremVernon L. Speicher
    • A61M1/10A61M1/12A61N1/362
    • A61M1/1068A61M1/1046A61M1/127A61N1/3627
    • A ventricular assist device may include a cardiac compression assembly which comprises a gel-filled pad of generally concave configuration, mounted on a pressure plate with peripheral portions of the pad extending beyond the periphery of the plate, to preclude damage to the heart by the peripheral edges of the plate. The gel-filled pad may have undulating opposite sides formed by intersecting rows of raised dimples. The pad also includes portions for suturing the pad to a heart ventricle, and at least some of the dimples on the side of the pad facing the heart ventricle are provided with ventricle tissue growth-promoting islands. An electrode, in the form of a grid having intersecting strips which define dimple-receiving openings therebetween, also may be mounted on the venticle side of the pad. As many as eight circumferentially arranged cardiac compression assemblies, having lower ends pivotally mounted on a support member adapted to be located adjacent the apex of a heart ventricle, may be provided. Operating systems for operating the cardiac compression assemblies may include a motor-driven camming mechanism; a mechanism comprising a device for converting electrical energy to hydraulic fluid energy, two sealed fluid systems, a reversible pump, two bellows and a safety solenoid pump-bypass fluid return valve; or a closed loop system comprising a reversible pump in a fluid supply casing, a hydraulic fluid manifold including a plurality of miniature fluid actuators which may be of arcuate construction to conserve space, and a mechanism for collecting fluid leaking from the actuators and returning it to the fluid supply casing.
    • 心室辅助装置可以包括心脏压缩组件,该心脏压缩组件包括一个大致凹形构型的凝胶填充垫,安装在压板上,垫的周边部分延伸超过板的周边,以排除周边的心脏损伤 板的边缘。 凝胶填充的垫可以具有由凸起的凹坑的相交行形成的起伏的相对侧。 衬垫还包括用于将垫缝合到心室的部分,并且面向心室的衬垫侧面上的至少一些凹窝设置有心室组织生长促进岛。 具有在其间限定凹坑接收开口的相交条带的网格形式的电极也可以安装在垫的通气面上。 可以提供多达八个周向布置的心脏压缩组件,其具有可枢转地安装在适于邻近心脏心尖的位置定位的支撑构件上的下端。 用于操作心脏压缩组件的操作系统可以包括马达驱动的凸轮机构; 包括用于将电能转换成液压流体能量的装置的机构,两个密封流体系统,可逆泵,两个波纹管和安全螺线管泵旁通流体回流阀; 或包括流体供应壳体中的可逆泵的闭环系统,包括可以具有弓形结构以节省空间的多个微型流体致动器的液压流体歧管以及用于收集从致动器泄漏的流体并将其返回到 流体供应套管。
    • 10. 发明授权
    • Single chamber blood pump
    • 单室血液泵
    • US6066085A
    • 2000-05-23
    • US359563
    • 1999-07-22
    • Marlin Stephen HeilmanChristopher David CaponeEdward Karl PremRichard Andrew Zehel SofrankoCarl Michael ParisiSteve Andrew KolenikDaniel Richard Moore
    • Marlin Stephen HeilmanChristopher David CaponeEdward Karl PremRichard Andrew Zehel SofrankoCarl Michael ParisiSteve Andrew KolenikDaniel Richard Moore
    • A61B17/11A61F2/06A61F2/24A61M1/10A61M1/12
    • A61F2/064A61M1/1008A61M1/1037A61B2017/1135A61F2/24A61M1/1046
    • A blood pump apparatus can include a pump housing having a drive chamber containing a drive mechanism. A cupped member can be connected to the housing and the drive mechanism can include a motor for rotating an eccentric shaft. A pumping arm can be provided having one end riding on the eccentric shaft, an intermediate portion pivotably attached to the housing and another end connected to a movable plate. A roller bearing can be mounted on the eccentric shaft on which the arm can ride. A compressible blood chamber having an inlet and an outlet connected can be provided sandwiched between the cupped portion and the movable plate. The motor thus rotates the cam causing the pumping arm to pivot which cycles the movable plate against the blood chamber to pump blood. The movable plate can be implanted adjacent a lung such that the lung moves with the plate as blood is pumped and thereby functions as a compliance chamber. A speed reducer can be provided between the motor and the eccentric shaft. A hermetically sealing bellows can be provided to seal the drive chamber and the end of the pumping arm from body fluids. An enclosure bag can be provided surrounding all or a portion of the blood pump to provide a tissue friendly surface and to prevent tissue from becoming caught in the moving parts of the blood pump. A position sensor can be included for determining a volume of blood in the chamber for use by an electronic controller to control the speed of the motor to optimize pumping action.
    • 血泵装置可以包括具有包含驱动机构的驱动室的泵壳体。 杯形构件可以连接到壳体,并且驱动机构可以包括用于旋转偏心轴的马达。 可以设置一个泵臂,其一端位于偏心轴上,中间部分可枢转地附接到壳体,另一端连接到可移动板。 滚子轴承可以安装在手臂可以骑行的偏心轴上。 具有入口和出口连接的可压缩血液室可以被夹在杯状部分和活动板之间。 因此,电动机使凸轮旋转,使得泵臂枢转,循环可移动板抵靠血液室以泵送血液。 可移动板可以在肺附近植入,使得当血液被泵送时肺随着板移动,从而起到顺应性室的作用。 电动机与偏心轴之间可设有减速器。 可以提供气密密封的波纹管以将驱动室和泵臂的端部与体液密封。 可以围绕血液泵的全部或一部分设置封闭袋,以提供组织友好的表面并防止组织被卡在血液泵的运动部分中。 可以包括位置传感器,用于确定腔室中的血液体积,供电子控制器使用,以控制电机的速度以优化泵送动作。