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    CONTROLLED INFLATION OF A PNEUMATIC L-VAD
    3.
    发明申请
    CONTROLLED INFLATION OF A PNEUMATIC L-VAD 失效
    控制气动L-VAD的充气

    公开(公告)号：US20070173682A1

    公开(公告)日：2007-07-26

    申请号：US11625396

    申请日：2007-01-22

    Applicant: Robert M. Smith ,  Roger W. Snyder ,  Paul G. DeDecker

    Inventor： Robert M. Smith ,  Roger W. Snyder ,  Paul G. DeDecker

    IPC: A61N1/362

    CPC classification number: A61M1/106 ,  A61M1/1037 ,  A61M1/1067 ,  A61M1/1086 ,  A61M1/12 ,  A61M1/122

    Abstract: A drive unit to control the peak pressure of air for the inflation of a left ventricular assist system is disclosed. The control of the peak pressure can address the problem of the “kick” experienced by patients when the peak inflation pressure reaches approximately 200 mm Hg. The peak pressure of the air released for the inflation cycle of the system is reduced either by the reduction of the inner diameter of the interconnect line running from the compression tank to the valve manifold or the use of a multi-valve manifold with independently controlled valves and an electronic controller to selectively open and close the valves of the manifold. Either technique, whether used alone or in combination, reduces the peak pressure of the air released for the inflation cycle to below the levels associated with the “kick,” while still meeting the operating specifications to properly inflate and deflate the system's blood pump.

    Abstract translation: 公开了用于控制用于左心室辅助系统的充气的空气的峰值压力的驱动单元。 峰值压力的控制可以解决当峰值充气压力达到约200 mm Hg时患者经历的“踢”问题。 通过减小从压缩箱运行到阀歧管的互连线的内径或使用具有独立控制的阀的多阀歧管来减少系统的充气循环释放的空气的峰值压力 以及选择性地打开和关闭歧管的阀的电子控制器。 无论是单独使用还是组合使用这两种技术，将通气循环释放的空气的峰值压力降低到与“踢”相关的水平以下，同时仍然达到操作规范以适当地膨胀和减小系统的血液泵。

    Controlled inflation of a pneumatic L-VAD
    7.
    发明授权
    Controlled inflation of a pneumatic L-VAD 失效
    控制气动L-VAD的充气

    公开(公告)号：US08070668B2

    公开(公告)日：2011-12-06

    申请号：US11625396

    申请日：2007-01-22

    Applicant: Robert M. Smith ,  Roger W. Snyder ,  Paul G. DeDecker

    Inventor： Robert M. Smith ,  Roger W. Snyder ,  Paul G. DeDecker

    IPC: A61N1/362

    CPC classification number: A61M1/106 ,  A61M1/1037 ,  A61M1/1067 ,  A61M1/1086 ,  A61M1/12 ,  A61M1/122

    Abstract: A drive unit to control the peak pressure of air for the inflation of a left ventricular assist system is disclosed. The control of the peak pressure can address the problem of the “kick” experienced by patients when the peak inflation pressure reaches approximately 200 mm Hg. The peak pressure of the air released for the inflation cycle of the system is reduced either by the reduction of the inner diameter of the interconnect line running from the compression tank to the valve manifold or the use of a multi-valve manifold with independently controlled valves and an electronic controller to selectively open and close the valves of the manifold. Either technique, whether used alone or in combination, reduces the peak pressure of the air released for the inflation cycle to below the levels associated with the “kick,” while still meeting the operating specifications to properly inflate and deflate the system's blood pump.

    Abstract translation: 公开了用于控制用于左心室辅助系统的充气的空气的峰值压力的驱动单元。 峰值压力的控制可以解决当峰值充气压力达到约200 mm Hg时患者经历的“踢”问题。 通过减小从压缩箱运行到阀歧管的互连线的内径或使用具有独立控制的阀的多阀歧管来减少系统的充气循环释放的空气的峰值压力 以及选择性地打开和关闭歧管的阀的电子控制器。 无论是单独使用还是组合使用这两种技术，将通气循环释放的空气的峰值压力降低到与“踢”相关的水平以下，同时仍然达到操作规范以适当地膨胀和减小系统的血液泵。

    Left ventricle assist device (LVAD)
    8.
    发明授权
    Left ventricle assist device (LVAD) 有权
    左心室辅助装置（LVAD）

    公开(公告)号：US07846083B2

    公开(公告)日：2010-12-07

    申请号：US11679487

    申请日：2007-02-27

    Applicant: Robert M. Smith ,  Roger W. Snyder ,  Adrian Kantrowitz ,  Allen B. Kantrowitz

    Inventor： Robert M. Smith ,  Roger W. Snyder ,  Adrian Kantrowitz ,  Allen B. Kantrowitz

    IPC: A61N1/00

    CPC classification number: A61M1/1072 ,  A61M1/1008 ,  A61M1/1037 ,  A61M1/106 ,  A61M1/122 ,  A61M1/125

    Abstract: A pump has an elongated shell with a generally elliptical shape, an outer convex surface and an inner concave surface. A peripheral side edge located between the inner and outer surfaces terminates in a bead edge. A flexible airtight membrane has a membrane edge bonded to the outer shell surface adjacent to the bead edge. Preforming the membrane edge looped with a maximum linear span of curvature that is greater than a maximal transverse linear extent of the bead edge, membrane operational wear during inflation and deflation cycles is reduced in the region around the bead edge. A process of forming a blood pump with a membrane preform is also provided.

    Abstract translation: 泵具有大致椭圆形的细长壳体，外凸面和内凹面。 位于内表面和外表面之间的周边侧边缘终止于边缘。 柔性密封膜具有与胎圈边缘相邻的外壳表面结合的膜边缘。 预先形成最大线性曲率跨度的膜边缘，其大于胎圈边缘的最大横向线性范围，在充气和放气周期期间的膜操作磨损在珠边缘周围的区域减小。 还提供了一种形成具有膜预制件的血液泵的过程。

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