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146 条记录 (耗时 0.014 秒)

    Pressure responsive linear motor driven pump
    92.
    发明授权
    Pressure responsive linear motor driven pump 失效
    压力响应线性马达驱动泵

    公开(公告)号：US5064353A

    公开(公告)日：1991-11-12

    申请号：US474325

    申请日：1990-02-02

    申请人： Kinji Tsukahara

    发明人： Kinji Tsukahara

    IPC分类号： F04B9/00 ,  A61M1/10 ,  F04B17/04 ,  F04B43/00 ,  F04B43/09 ,  F04B43/107

    CPC分类号： F04B43/107 ,  A61M1/106 ,  F04B43/0081 ,  F04B43/09

    摘要： Pumping apparatus which compresses or decompresses an actuating fluid alternately, which is in turn used to pump an artificial heart. To reduce the size of the apparatus, a diaphragm which contains a non-compressible actuating liquid is driven reciprocatingly by an electric linear motor. To prevent the occurrence of an excessive suction pressure which may be caused by the non-compressibility of the actuating fluid, at the commencement of the suction interval, the current to energize the linear motor is increased gradually and the pressure of the actuating liquid is detected. When the liquid pressure goes out of a selected safety range, the gradual increase ceases. A discharge stroke is detected from an integrated value of the motor current during the discharge interval, and when it reaches a given value, a reversal of the direction of energization of the motor is initiated.

    摘要翻译： 泵送装置，其交替地压缩或减压致动流体，其又用于泵送人造心脏。 为了减小设备的尺寸，包含不可压缩的致动液体的隔膜由电动线性电动机往复运动。 为了防止由于致动流体的不可压缩性引起的过大的吸入压力的发生，在吸入间隔开始时，对线性电动机通电的电流逐渐增加，并且检测到致动液体的压力 。 当液体压力超出选定的安全范围时，逐渐增加停止。 从放电间隔期间的电动机电流的积分值检测出排出行程，当达到给定值时，启动电动机通电方向的反转。

    Pneumatic pulsator pumping system with pulsator fluid venting valve
    93.
    发明授权
    Pneumatic pulsator pumping system with pulsator fluid venting valve 失效
    带脉动流体排气阀的气动脉动泵送系统

    公开(公告)号：US4047849A

    公开(公告)日：1977-09-13

    申请号：US647680

    申请日：1976-01-09

    申请人： Warren C. Clay

    发明人： Warren C. Clay

    IPC分类号： A61M1/10 ,  F04B43/06 ,  F04B43/107 ,  F04B9/08 ,  F04B35/02

    CPC分类号： A61M1/106 ,  F04B43/06 ,  F04B43/107 ,  Y10T137/2544

    摘要： A pneumatic pump adapted primarily as a left ventricular heart assist device includes a flexible bladder with a rigid housing. A pneumatic driver applies rhymical pulses between the bladder and the housing to repetitively collapse the bladder and establish a pumping action through the bladder, in conjunction with check valves in the inlet and outlet to the bladder. Between the driver and the pump there is provided a pneumatic pulse limiter which includes a flexible diaphragm isolating the driver from the pump. Pulses from the driver are transmitted to the pump only through the flexible diaphragm and the diaphragm is constrained to move only within established limits. Regardless of the magnitude of the pulse from the driver, the maximum pulse applied to the pump cannot exceed that corresponding to the maximum displacement of the diaphragm.Between successive pulses, the portion of the system between the driver and the flexible diaphragm is depressurized. The rapidity with which depressurization occurs is enhanced by provision of a quick release valve between the driver and the diaphragm.

    摘要翻译： 主要适合于左心室心脏辅助装置的气动泵包括具有刚性壳体的柔性囊。 气动驱动器在气囊和壳体之间施加合适的脉冲以重复地塌缩气囊并且通过气囊建立泵送动作，并与气囊的入口和出口中的止回阀结合。 在驾驶员和泵之间提供了气动脉冲限制器，其包括将驱动器与泵隔离的柔性隔膜。 来自驾驶员的脉冲仅通过柔性膜片传输到泵，并且膜片被限制为仅在确定的限度内移动。 不管来自驱动器的脉冲的大小，施加到泵的最大脉冲不能超过与隔膜的最大位移相对应的最大脉冲。

    Metering pump
    94.
    发明授权
    Metering pump 失效
    计量泵

    公开(公告)号：US3910727A

    公开(公告)日：1975-10-07

    申请号：US45174874

    申请日：1974-03-18

    申请人： VALVE SYST INT INC

    发明人： FLYNN JAC B ,  PRIESE WERNER K

    IPC分类号： F04B43/00 ,  F04B43/107 ,  F04B49/12 ,  F04B9/08

    CPC分类号： F04B43/107 ,  F04B43/009 ,  F04B49/121

    摘要： A pump has a reservoir containing a supply of driving fluid. Mounted within the reservoir is a drive mechanism for reciprocating a piston within a cylinder. The drive mechanism has an eccentrically mounted member which is slidably surrounded by a sliding block, the latter being enclosed by a cross-head which is connected to the piston and confined so as to reciprocate within the pump. Thus, rotary motion is converted to oscillating motion in the sliding block, and the oscillating motion is then converted to reciprocating motion in the cross-head, the reciprocating motion then being transmitted to the piston. Two elastomeric tubes have their ends mounted within the pump so as to permit distortion (expansion or compression) of the central portions of the tubes. In the preferred embodiment of the invention, a displacement chamber is defined between the piston and the inner surface of the first tube, and an intermediate chamber is defined between the outer surfaces of the tubes, the intermediate chamber containing an intermediate driving fluid. As the piston reciprocates, driving fluid alternately passes into and out of the displacement chamber to cause the first tube to alternate between a first configuration, and a second configuration, which in turn causes the second tube to do likewise via the intermediate driving fluid. As a result of the alternating configurations assumed by the second tube, process fluid is pumped through the second tube. Other modifications are also disclosed.

    摘要翻译： 泵具有容纳驱动流体的容器。 安装在贮存器内的是用于使活塞在气缸内往复运动的驱动机构。 驱动机构具有偏心地安装的构件，其被滑动块滑动地围绕，后者由滑块封闭，十字头被连接到活塞并被限制在泵内往复运动。 因此，旋转运动在滑动块中转换为振荡运动，然后振荡运动在十字头中被转换为往复运动，往复运动然后传递到活塞。 两个弹性管的端部安装在泵内，以允许管的中心部分变形（膨胀或压缩）。 在本发明的优选实施例中，在活塞和第一管的内表面之间限定了移动室，并且在管的外表面之间限定了中间室，中间室包含中间驱动流体。 当活塞往复运动时，驱动流体交替地进入和移出位移室，以使第一管在第一构型和第二构型之间交替，这又使第二管经由中间驱动流体同样地进行。 作为由第二管假设的交替配置的结果，工艺流体被泵送通过第二管。 还公开了其它修改。

    Surgical pump
    95.
    发明授权
    Surgical pump 失效
    手术泵

    公开(公告)号：US3724973A

    公开(公告)日：1973-04-03

    申请号：US3724973D

    申请日：1971-10-21

    申请人： SHILL K

    发明人： SHILL K

    IPC分类号： A61M1/10 ,  F01L23/00 ,  F04B9/107 ,  F04B43/107 ,  F04B35/02

    CPC分类号： F01L23/00 ,  A61M1/10 ,  A61M1/1006 ,  A61M1/1037 ,  A61M1/106 ,  A61M1/1086 ,  A61M1/1087 ,  A61M1/1096 ,  F04B9/107 ,  F04B43/107 ,  Y10S128/03

    摘要： This invention relates to a surgical pump primarily designed for the pumping of blood, as in open-heart surgery or for pumping blood through a ''''kidney machine,'''' but also particularly adapted for other surgical uses, such as pumping dialycate in a ''''kidney machine,'''' or the like; and is characterized by the fact that it provides direct and continuous volumetric adjustment from 0 to the maximum size of the pump even while in use; is small in size and light-weight; is readily adjustable as to the force applied to the liquid being pumped, and has independently adjustable timing of the diastole and sistole portions of a pumping cycle.

    摘要翻译： 本发明涉及主要设计用于泵送血液的外科手术泵，如在开心手术中或通过“肾脏机器”泵送血液，但也特别适用于其它手术用途，例如在“肾脏机器 ，“等等; 并且其特征在于即使在使用时也可以从泵到泵的最大尺寸的直接和连续的体积调节; 体积小，重量轻; 对于施加到被泵送的液体的力，容易调节，并且具有泵送循环的舒张和分支部分的独立可调定时。