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    Ventricular assist device
    8.
    发明授权
    Ventricular assist device 有权
    心室辅助装置

    公开(公告)号：US09320841B2

    公开(公告)日：2016-04-26

    申请号：US13924472

    申请日：2013-06-21

    Applicant: Corvivo Inc.

    Inventor： Xiaoming Bian ,  Frank Zheng

    IPC: A61M1/12 ,  A61M1/10

    CPC classification number: A61M1/1087 ,  A61M1/1005 ,  A61M1/1037 ,  A61M1/1055 ,  A61M1/1067 ,  A61M1/1086 ,  A61M1/1098 ,  A61M1/122 ,  A61M1/125 ,  A61M2230/005 ,  A61M2230/04

    Abstract: A ventricle assist device comprises an inlet for receiving blood, an outlet for discharging blood, and a chamber disposed between the inlet and the outlet. There is also a means for actuating the ventricle assist device between an expanded configuration and a contracted configuration. In the expanded configuration blood flows into the inlet. In the contracted configuration blood flows out of the outlet. There may be a one-way valve at the outlet for preventing blood flow back into the chamber. The one-way valve is a diaphragm valve. The chamber may have a resilient outer wall. The chamber may have an ovoid shape.

    Abstract translation: 心室辅助装置包括用于接收血液的入口，用于排出血液的出口以及设置在入口和出口之间的腔室。 还有一种用于在扩张配置和收缩配置之间致动心室辅助装置的装置。 在扩展配置中，血液流入入口。 在收缩配置中，血液从出口流出。 在出口处可能有一个单向阀，用于防止血液流回腔室。 单向阀是隔膜阀。 腔室可具有弹性的外壁。 腔室可以具有卵形形状。

    Medical Treatment System and Methods Using a Plurality of Fluid Lines
    9.
    发明申请
    Medical Treatment System and Methods Using a Plurality of Fluid Lines 审中-公开
    使用多种流体管线的医疗系统和方法

    公开(公告)号：US20160101278A1

    公开(公告)日：2016-04-14

    申请号：US14732571

    申请日：2015-06-05

    Applicant: DEKA Products Limited Partnership

    Inventor： Michael G. Norris ,  Jacob W. Scarpaci ,  Robert J. Bryant, JR. ,  Geoffrey P. Spencer ,  David J. Hibbard ,  James D. Dale ,  John M. Kerwin ,  Andrew S. Coll ,  David A. Beavers ,  David W. McGill ,  Simon C. Helmore ,  David B. Doherty ,  Edgar J. Bolton ,  Jinsun Yoo ,  Paul G. Girouard ,  Daniel S. Karol ,  Daniel B. Singer ,  Joseph P. Rushlow

    IPC: A61M39/22 ,  A61M1/28

    CPC classification number: A61M39/22 ,  A61M1/1006 ,  A61M1/1012 ,  A61M1/1037 ,  A61M1/106 ,  A61M1/1062 ,  A61M1/1086 ,  A61M1/1087 ,  A61M1/1096 ,  A61M1/166 ,  A61M1/28 ,  A61M1/282 ,  A61M1/288 ,  A61M2205/12 ,  A61M2205/3331 ,  A61M2205/3334 ,  A61M2205/3379 ,  A61M2205/3396 ,  A61M2205/6063

    Abstract: Improvements in fluid volume measurement systems are disclosed for a pneumatically actuated diaphragm pump in general, and a peritoneal dialysis cycler using a pump cassette in particular. Pump fluid volume measurements are based on pressure measurements in a pump control chamber and a reference chamber in a two-chamber model, with different sections of the apparatus being modeled using a combination of adiabatic, isothermal and polytropic processes. Real time or instantaneous fluid flow measurements in a pump chamber of a diaphragm pump are also disclosed, in this case using a one-chamber ideal gas model and using a high speed processor to obtain and process pump control chamber pressures during fluid flow into or out of the pump chamber. Improved heater control circuitry is also disclosed, to provide added or redundant safety measures, or to reduce current leakage from a heater element during pulse width modulation control of the heater. Improvements are also disclosed in the application of negative pressure during a drain phase in peritoneal dialysis therapy, and to control the amount of intraperitoneal fluid accumulation during a therapy. Improvements in efficiency are also disclosed in the movement of fluid into and out of a two-pump cassette and heater bag of a peritoneal dialysis cycler, and in the synchronization of the operation of two or more pumps in a peritoneal dialysis cycler or other fluid handling devices using a multi-pump arrangement.

    Abstract translation: 一般来说，对气动驱动的隔膜泵公开了流体体积测量系统的改进，特别是使用泵盒的腹膜透析循环仪。 泵流体体积测量基于泵室控制室中的压力测量和双室模型中的参考室，其中该设备的不同部分使用绝热，等温和多变过程的组合进行建模。 还公开了在隔膜泵的泵室中的实时或瞬时流体流量测量，在这种情况下使用单室理想气体模型并且使用高速处理器在流体流入或流出期间获得和处理泵控制室压力 的泵室。 还公开了改进的加热器控制电路，以在加热器的脉冲宽度调制控制期间提供附加的或冗余的安全措施，或减少来自加热器元件的电流泄漏。 在腹膜透析治疗期间在排水阶段中施加负压并且在治疗期间控制腹膜内液体积累的量也公开了改进。 流体进出腹膜透析循环仪的双泵盒和加热袋，以及在腹膜透析循环仪或其他流体处理中两个或多个泵的操作的同步中也公开了效率的改善 使用多泵排列的装置。

    Blood pump
    10.
    发明授权
    Blood pump 有权
    血泵

    公开(公告)号：US09220825B2

    公开(公告)日：2015-12-29

    申请号：US14378837

    申请日：2012-02-16

    Applicant: Clive Buckberry

    Inventor： Clive Buckberry

    IPC: A61M1/10

    CPC classification number: A61M1/1087 ,  A61M1/1037 ,  A61M1/1046 ,  A61M1/106 ,  A61M1/1062

    Abstract: A blood pump 2 comprising: a cartridge 4 having a concave recess 8 therein having a surface, and a flexible membrane 0 covering said recess, the concave recess and flexible membrane forming a pump chamber 12 having an inlet 14 and an outlet 16 wherein: said flexible membrane is movable between a first position, separated from said surface wherein in such position the pump chamber has a maximum volume, and a second position, substantially adjacent said surface such that in said second position the pump chamber has a minimum volume, a pump driver mechanism 18 arranged to interface with the cartridge, said driver operable to move the flexible membrane in a first direction into the recess to, in use, pump blood from the chamber and operable to move the flexible membrane in a second direction away from the recess to, in use, draw blood into said chamber; and wherein the pump driver controls the movement of the flexible membrane in the first direction such that the speed at which it is moving reduces as it approaches the surface of the concave recess.

    Abstract translation: 一种血泵2，包括：具有凹面凹部8的药筒4，其中具有表面，以及覆盖所述凹部的柔性膜0，所述凹形凹部和柔性膜形成具有入口14和出口16的泵室12，其中：所述 柔性膜可以在与所述表面分离的第一位置之间移动，所述第一位置在泵室具有最大容积的位置和基本上邻近所述表面的第二位置，使得在所述第二位置，泵室具有最小的体积，泵 驱动器机构18布置成与药筒接合，所述驱动器可操作以将柔性膜沿第一方向移动到凹槽中，在使用中将血液从腔室泵送并可操作以沿着远离凹部的第二方向移动柔性膜 在使用中将血液吸入所述腔室; 并且其中所述泵驱动器控制所述柔性膜沿所述第一方向的移动，使得其移动的速度随着其接近所述凹形凹部的表面而减小。

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