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    • 62. 发明申请
    • 液体流路の圧力検出装置
    • 用于流体流路的压力检测装置
    • WO2014061770A1
    • 2014-04-24
    • PCT/JP2013/078271
    • 2013-10-18
    • 日機装株式会社
    • 秋田 邦彦松尾 純明
    • F04C5/00A61B5/0215A61M1/14F04B43/12
    • F04B43/1253A61B5/6866A61B2562/0247A61M1/1006A61M1/1039A61M1/1086A61M1/1603A61M1/267A61M1/3639A61M2205/3337A61M2205/3355A61M2205/702F04B43/0081F04B2205/01F04B2205/02F04B2205/03F04B2205/04
    • 【課題】流通させる液体の淀みを抑制することができるとともに、液体流路の製造コスト及び容量を低減させることができ、かつ、被しごきチューブ又は変位検出手段の個体差に基づく誤差を抑制することができ、液体流路の圧力をより精度よく検出させることができる圧力検出装置を提供する。 【解決手段】被しごきチューブ1aの径方向の変位を検出する変位検出手段18と、その変位から脱血圧を算出し得る圧力算出手段20と、変位検出手段18の配設部位を含みつつ閉鎖流路を形成し得る閉鎖流路形成手段と、閉鎖流路内の圧力を任意に変化させ得る圧力変化手段と、閉鎖流路内の圧力変化を検出し得る圧力検出手段と、圧力検出手段で検出された圧力変化と変位検出手段18の検出値との関係により変位検出手段18及び圧力算出手段20の校正のための検量線を作成して取得し得る検量線取得手段26とを具備したものである。
    • 本发明提供一种压力检测装置,其能够抑制已经流动的流体的滞后性,能够降低流体流路的制造成本和容量,能够抑制基于管之间的个体差异而发生的错误 被挤压或位移检测装置,并且能够更精确地检测流体流路压力。 解决方案:一种用于流体流路的压力检测装置,包括:位移检测装置,其检测待挤压的管的径向位移(1a); 压力计算装置(20),能够从所述位移计算去除血压; 封闭的流路形成装置,其能够包括位移检测装置(18)的安装位置并形成封闭的流动路径; 能够任意地改变封闭流路内的压力的压力变更装置; 能够检测所述封闭流路内部的压力变化的压力检测单元; 以及校准曲线获取装置(26),其能够根据由压力检测装置检测到的压力变化与检测值之间的关系创建并获得用于校准位移检测装置(18)和压力计算装置(20)的校准曲线 位移检测装置(18)的值。
    • 63. 发明申请
    • DEVICE AND METHOD FOR PUMPING A CRYOGENIC FLUID
    • 用于泵送低温流体的装置和方法
    • WO2009150337A3
    • 2010-02-18
    • PCT/FR2009050844
    • 2009-05-07
    • AIR LIQUIDEALLIDIERES LAURENT
    • ALLIDIERES LAURENT
    • F04B15/08F04B23/02
    • F04B15/08F04B23/02F04B2205/01
    • The invention relates to a device for pumping a cryogenic fluid, consisting of a tank (1) for storing a cryogenic fluid containing cryogenic liquid, a cryogenic pump (3) having an inlet pressure loss (net positive suction head, NPSH), and a suction line (2) connecting the tank (1) to the pump (3), said pumping device including a system (9, 18, 19) for controlling the pressure in the tank (1) for selectively maintaining said pressure at least equal to the saturation pressure of the stored cryogenic fluid plus the inlet pressure loss (NPSH) of the cryogenic pump and optionally plus the value of the pressure losses owing to the pipes forming the suction line (2) connecting the tank (1) to the pump (3). The invention is characterised in that the pressure-control system (9, 18, 19) includes a duct (9) connecting a high-pressure outlet of the pump (3) to the tank (1) for selectively returning the pumped cold fluid to the tank (1), said duct (9) including an expansion valve (99) for returning cold gas to the tank (1).
    • 本发明涉及一种用于泵送低温流体的装置,其包括用于储存含有低温液体的低温流体的罐(1),具有入口压力损失(净正吸入头,NPSH)的低温泵(3)和 将所述罐(1)连接到所述泵(3)的吸入管线(2),所述泵送装置包括用于控制所述罐(1)中的压力的​​系统(9,18,19),用于选择性地将所述压力保持在 存储的低温液体的饱和压力加上低温泵的入口压力损失(NPSH),并且可选地加上由于形成将罐(1)连接到泵的吸入管线(2)的管道的压力损失值 3)。 本发明的特征在于,压力控制系统(9,18,19)包括将泵(3)的高压出口连接到罐(1)的管道(9),用于选择性地将泵送的冷流体返回到 所述容器(1),所述管道(9)包括用于将冷气返回到所述罐(1)的膨胀阀(99)。
    • 69. 发明申请
    • IMPLANTABLE VENTRICULAR ASSIST DEVICE
    • 可植入的静脉辅助装置
    • WO00059560A1
    • 2000-10-12
    • PCT/US1999/030145
    • 1999-12-15
    • A61M1/12A61M1/00A61M1/10F04B43/04H02K33/16F04B17/04F04B45/00H02K33/00
    • F04B43/04A61M1/1008A61M1/1037A61M1/1053A61M1/1055A61M1/1086A61M1/1098A61M1/122A61M1/127F04B2205/01H02K33/16
    • An implantable ventricular assist device (VAD) has a small size to provide full-implantable capabilities. The VAD has two variable-volume chambers and an actuator for expelling blood from the chambers in sequence and to a common outlet, thus operating as a positive-displacement pump. The variable-volume chambers may be flexible sacs and the pump is operable at a substantially continuous flow, such as during the systolic phase of the assisted ventricle. A method of operation includes operating the pump at a first frequency during systole and a second lower frequency during diastole. The VAD pump may include a pair of coils housed within a frame and disposed in a spaced relationship to generate a coil flux through a pair of poles. A plate including an armature and a magnet is disposed within the frame such that the armature is between the poles and the magnet is between the coils. Gaps are defined between the armature and each of the poles and the coil flux displaces the armature across the gap. The volume of the chambers is a fraction of the ventricular volume, and may be about 20 ml.
    • 可植入心室辅助装置(VAD)具有小尺寸以提供完全可植入的能力。 VAD具有两个可变容积的腔室和用于将腔室中的血液依次排出并连接到公共出口的致动器,因此作为正排量泵进行操作。 可变体积腔室可以是柔性囊,并且泵可以基本上连续的流动操作,例如在辅助心室的收缩期期间。 一种操作方法包括在收缩期间以第一频率操作泵,并且在舒张期期间以第二较低频率操作泵。 VAD泵可以包括容纳在框架内的一对线圈,并以间隔的关系设置,以产生通过一对极的线圈通量。 包括电枢和磁体的板设置在框架内,使得电枢在磁极之间,并且磁体在线圈之间。 在电枢和每个极之间限定了间隙,并且线圈通量将电枢置于间隙上。 室的体积是心室体积的一部分,并且可以是约20ml。
    • 70. 发明申请
    • RELIEF VALVE SEAT FOR POSITIVE DISPLACEMENT PUMP
    • 用于积极位移泵的减压阀座
    • WO1995012069A1
    • 1995-05-04
    • PCT/US1994012342
    • 1994-10-28
    • LANCER CORPORATION
    • LANCER CORPORATIONSCHROEDER, Alfred, A.
    • F04B53/10
    • F04B49/24F04B2205/01F04B2205/05F04B2205/15F04B2207/02Y10T137/7939
    • A positive displacement pump (50) includes a relief valve comprising a valve seat (61), a needle (62) within the valve seat, a spring (63) forcing the needle within the valve seat, a set screw (65) pressing the spring against the needle and a spacer (64) for mounting the set screw to the housing of the positive displacement pump. The valve seat threadably connects within the relief valve passageway to prevent the erosion of the passageway. The valve seat may be constructed from a plastic, hard rubber, or metal material and include a rubberized seal secured at one end of the valve seat. When the valve seat erodes to a point where it provides an insufficient seat for the needle, it is removed from within the relief valve passageway and replaced with a similar valve seat. By protecting the relief valve passageway from erosion by using an inexpensive, removable, and disposable valve seat, costly disposal or machining of the housing of the positive displacement pump is avoided.
    • 容积式泵(50)包括一个安全阀,包括阀座(61),阀座内的针(62),将针头推入阀座内的弹簧(63),压紧螺钉 弹簧抵靠针头和用于将固定螺钉安装到容积式泵壳体的间隔件(64)。 阀座螺纹连接在安全阀通道内以防止通道的侵蚀。 阀座可以由塑料,硬橡胶或金属材料构成,并且包括固定在阀座一端的橡胶密封件。 当阀座侵蚀到针头不足的地方时,阀座将从安全阀通道内取出并更换为类似的阀座。 通过使用廉价的,可移除的和一次性的阀座来保护溢流阀通道免受侵蚀,避免了容积式泵的壳体的昂贵的处理或加工。