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    • 31. 发明授权
    • Artificial heart propelled by respiratory muscles
    • 由呼吸肌推动的人造心脏
    • US4078267A
    • 1978-03-14
    • US752837
    • 1976-12-21
    • Tomasz Cieszynski
    • Tomasz Cieszynski
    • A61M1/10F04B43/10A61F1/24
    • F04B43/10A61M1/1003A61M1/106
    • An artificial heart comprising two ventricles (8) and two atria (9) adapted for inclusion in a blood circulation system via valves (17), to operate in the same manner as a live heart. The heart comprises a rigid housing (1) containing in its top part two inlet ports (2) and two outlet ports (3). Elastic ventricle (8) and elastic atrium (9) constitute a symmetrical half of the heart. The bottom part of housing (1) is shaped in the form of two parallel cylinders (4) capped tightly and slidably with buckets (5) having convex bottoms, these bottoms forming pistons (6). An elastic movable diaphragm (7) is located above each piston (6), and is circumferentially attached to the inside of cylinder (4) and to the elastic ventricle (8). Physiological liquid is contained between ventricle (8) and diaphragm (7). The top part of housing (1) is connected with a branched shank designed for attachment to the human skeleton, and buckets (5) are attached to the branched elastic, membranaceous and pedate bearer designed to rest against respiratory muscles and their bony lining. The volume of ventricles (8) and of atria (9) is about four times larger in comparison with that of a live heart. The heart is actuated by the motion of respiratory muscles which exert a pressure on buckets (5) via the bearer, the operation of the heart being similar to that of a hydraulic diaphragm-piston pump.
    • 包括适于通过阀(17)包含在血液循环系统中的两个脑室(8)和两个心房(9)的人造心脏以与活的心脏相同的方式操作。 心脏包括刚性壳体(1),其顶部包含两个入口端口(2)和两个出口端口(3)。 弹性心室(8)和弹性心房(9)构成心脏的对称半部。 壳体(1)的底部成形为两个平行的气缸(4)的形式,其紧密且可滑动地具有具有凸起底部的桶(5),这些底部形成活塞(6)。 弹性活动隔膜(7)位于每个活塞(6)的上方,周向地安装在气缸(4)的内部和弹性心室(8)上。 心室(8)和隔膜(7)之间包含生理液体。 外壳(1)的顶部与设计用于附接到人体骨架的分支杆连接,并且桶(5)连接到分支的弹性,膜质和脚踏板承载件上,以防止呼吸肌和骨骼衬里。 与活体心脏相比,心室(8)和心房(9)的体积大约是四倍。 心脏由呼吸肌的运动引起,呼吸肌通过承载器施加在水桶(5)上的压力,心脏的操作类似于液压隔膜活塞泵的操作。
    • 32. 发明授权
    • Specially reinforced flexible tube pumping chamber
    • 特殊增强柔性管抽气室
    • US4076467A
    • 1978-02-28
    • US653392
    • 1976-01-29
    • Jan Edvard Persson
    • Jan Edvard Persson
    • F04B43/00F04B43/08F04B43/10F04B47/06F04B11/00F04B45/06
    • F04B43/0072F04B43/084
    • A pump comprises a tubular resilient pump element alternately extended and relaxed for longitudinal deformation and reinforced by means of filaments arranged in helices, preferably with different helices of opposite hands present, whose pitch angle is other than arccot .sqroot.2 so longitudinal deformation will result in volumetric changes. Inlet and outlet valves ensure unidirectional flow through the pump element.To smooth out flow a similarly constructed accumulator element, whose reinforcement pitch angle is chosen with a value such that the pump and accumulator pitch angles are on opposite sides of arccot .sqroot.2, is arranged to undergo simultaneous and similarly directed longitudinal deformation and to have a volumetric change of opposite sign, and preferably half the value, with regard to that of the pump element whereby during the inlet stroke of the pump element the accumulator element, which communicates with the discharge flow path from the pump element, will advance a proportion, preferably half, of the previous discharge stroke of the pump element.
    • 泵包括管状弹性泵元件,其交替地延伸和松弛用于纵向变形,并且通过布置成螺旋状的细丝加强,优选地具有不同螺旋的相对手的螺旋,其间距角不同于弧形2ROOT 2,因此纵向变形将导致体积 变化。 入口和出口阀确保单向流动通过泵元件。
    • 34. 发明授权
    • Blood pump for use in an artificial heart or such purpose
    • 血泵用于人造心脏或此类用途
    • US3955557A
    • 1976-05-11
    • US511024
    • 1974-09-30
    • Hiroyuki Takagi
    • Hiroyuki Takagi
    • F04B43/10A61M1/10A61M1/03A61F1/24
    • A61M1/106A61M1/1065Y10S128/03
    • This invention relates to a blood pump for use in an artificial heart including an inlet pump system and an output pump system in series with each pump including branch tubes communicating with first main inlet tube, each branch tube being equipped with a flow-in side valve and a flow-out side valve with a flexible middle portion of the branch tubes which is expanded or contracted to provide a pulsatile pump with flow-out end of each branch tube connected to a second main tube with the second main tube of the inlet pump system being connected with the first main tube of the output pump and with the branch tubes of each system being ultimately expanded and contracted at different rates to provide a blood pump which achieves excellent hemodynamic effects without requiring synchronization with the rhythm of a natural heart.
    • 本发明涉及一种用于人造心脏的血泵,包括入口泵系统和输出泵系统,每个泵与每个泵串联,包括与第一主入口管连通的分支管,每个分支管装有流入侧阀 以及流出侧阀,其具有扩展或收缩的分支管的柔性中间部分,以提供脉动泵,其具有连接到第二主管的每个分支管的流出端,而入口泵的第二主管 系统与输出泵的第一主管连接,并且每个系统的分支管最终以不同的速率膨胀和收缩以提供血泵,其实现优异的血液动力学效应,而不需要与天然心脏的节律同步。
    • 36. 发明授权
    • Pressure alternating device for automatic lungs ventilator actuation
    • 用于自动通风机启动的压力替代装置
    • US3658443A
    • 1972-04-25
    • US3658443D
    • 1970-11-20
    • FUMAGALLI GIOVANNI
    • FUMAGALLI GIOVANNI
    • A61M16/00A61M16/20F04B9/12F04B35/02F04B43/10F04B45/00
    • A61M16/0057A61M16/0009A61M16/0063A61M16/20A61M16/202A61M16/206
    • The device is designed for alternatingly supplying air at superatmospheric and respectively at subatmospheric pressure into a variable pressure chamber of a lungs ventilator for pulsingly and meteredly supplying fresh gas into a patient''s lungs. The device comprises a pump having a rotary piston adapted to unidirectionally and pulsingly feeding air at a rate whose variation in each pulse is substantially defined by the function of ''''sin2 alpha'''' (''''alpha'''' being the amplitude of the rotational motion), and a negative pressure limiting valve including a valve member electromagnetically biased by a biasing force which decreases with the second power of the displacement of said member, to provide a venting passage the cross-sectional area of which varies concurrently with the speed of air through said passage for levelling the variable resistance encountered by said air traversing said passage at different speeds.
    • 该装置设计用于将超大气压和低于大气压的空气交替地供应到肺通气机的可变压力室中,用于脉动地和计量地将新鲜气体供应到患者的肺中。 该装置包括具有旋转活塞的泵,该旋转活塞适于单向和脉动地以每个脉冲的变化基本上由“sin2α”(“α”表示旋转运动的幅度)的函数限定的速率进给空气, 负压限制阀包括通过随着所述构件的位移的第二功率而减小的偏压力而电磁偏置的阀构件,以提供通风通道,其横截面积与通过所述通道的空气速度同时变化, 调整所述空气以不同的速度穿过所述通道遇到的可变阻力。