LINEAR DRIVE AND PUMP SYSTEM, IN PARTICULAR AN ARTIFICIAL HEART

    公开(公告)号:US20100234941A1

    公开(公告)日:2010-09-16

    申请号:US12670708

    申请日:2008-08-18

    IPC分类号: A61M1/10

    摘要: The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movable part is formed by a coil arrangement, or vice versa, and wherein the coil arrangement and the permanent magnet arrangement can be moved to and fro relative to each other in an axial direction by means of current passed through the coil arrangement, wherein the coil arrangement (1) is arranged in an axially extending air gap (5) of the permanent magnet arrangement (2) whose magnetic material is magnetized in the axial direction and which, at least at its two axial ends, has inner and outer pole shoes (6a, 6b) which lie radially opposite each other and are spaced apart by the air gap (5), as a result of which the magnetic field in the air gap (5) is concentrated in the radial direction in the area of the mutually facing pole shoes (6a, 6b), as a result of which at least one magnetic circuit is formed in which the magnetic field lines extend radially through the air gap (5) from the inside outwards and also through said air gap (5) from the outside inwards. The invention further relates to an electrical linear drive of this kind in which the permanent magnet arrangement (2) is designed as a stack of frame-shaped, in particular ring-shaped magnets (2a, 2b, 2c), which are magnetized alternately radially and axially in the axial direction, such that the magnetic field is strengthened on one side of the frame or in particular ring, in particular on the radially outer side, and is weakened on the other side of the frame or in particular ring, in particular on the radially inward side, and the coil arrangement (1) is arranged coaxially with respect to the permanent magnet arrangement (2) on the side with the strengthened magnetic field.

    Cardiac function change evaluating device
    3.
    发明授权
    Cardiac function change evaluating device 有权
    心功能改变评估装置

    公开(公告)号:US08870738B2

    公开(公告)日:2014-10-28

    申请号:US12598849

    申请日:2008-05-09

    摘要: A cardiac function variation evaluation apparatus includes: a continuous flow type auxiliary artificial heart 20 connected to a ventricle (10A); a pressure sensor 30 for detecting ventricle (10A) internal pressure; and means (a personal computer 40) for evaluating contractile variation of the ventricle, to which the auxiliary artificial heart 20 is connected, based on internal area APMp of a closed-loop of a relationship between the ventricle internal pressure detected by the pressure sensor 30 and a consumption power of the auxiliary artificial heart 20. Thus, the contractile variation of the ventricle, to which an auxiliary artificial heart is connected, can be continuously evaluated not by use of an ultrasonic echo apparatus or a conductance catheter but by use of a non-invasive method.

    摘要翻译: 心脏功能变化评价装置包括:与心室(10A)连接的连续流动型辅助人造心脏20; 用于检测心室(10A)内压的压力传感器30; 以及用于根据由压力传感器30检测到的心室内压之间的关系的闭环的内部区域APMp来评估辅助人造心脏20连接到的心室的收缩变化的装置(个人计算机40) 和辅助人造心脏20的消耗功率。因此,辅助人造心脏连接到的心室的收缩变化可以不是通过使用超声回波装置或电导导管来连续评估,而是使用 非侵入性方法。

    EXCHANGER DEVICE
    4.
    发明申请
    EXCHANGER DEVICE 审中-公开
    交换器设备

    公开(公告)号:US20140061116A1

    公开(公告)日:2014-03-06

    申请号:US14115221

    申请日:2012-05-02

    IPC分类号: A61M1/16

    摘要: An exchanger device for transferring mass and/or energy between a first medium and a second medium includes a chamber having a first inlet and first outlet of the first medium and through which the first medium can flow. The chamber is equipped with at least one, preferably a plurality, of one mass- and/or energy-permeable exchanger hollow fibers connected at one end to a second inlet and at the other end to a second outlet of the second medium. The second medium can flow through the fiber(s) and the first medium can flow around the fiber(s). The chamber is equipped with at least one pump element for displacing the first medium in and out of the chamber in a pulsing manner. The pump element has an elastically deformable element, is connected to a third inlet of a third medium used as a driving medium, and is expandable by the third medium.

    摘要翻译: 用于在第一介质和第二介质之间传送质量和/或能量的交换器装置包括具有第一介质的第一入口和第一出口以及第一介质可以流经的室。 腔室配备有至少一个,优选多个,一个质量和/或能量可渗透的交换器中空纤维,其一端连接到第二入口,另一端连接到第二介质的第二出口。 第二介质可以流过纤维,第一介质可以在纤维周围流动。 腔室配备有至少一个泵元件,用于以脉冲方式将第一介质移入和移出腔室。 泵元件具有可弹性变形的元件,连接到用作驱动介质的第三介质的第三入口,并且可由第三介质膨胀。

    Extraction device
    6.
    发明申请
    Extraction device 审中-公开
    提取装置

    公开(公告)号:US20060155305A1

    公开(公告)日:2006-07-13

    申请号:US10527390

    申请日:2003-09-11

    IPC分类号: A61B17/26

    摘要: In an extraction device (1) for extracting objects (2), in particular clots, foreign bodies, etc., from cavities (3) in a human or animal body, with first and second compressible and expandable collecting baskets (10, 20, 102, 110) between which the object (2) can be captured, said collecting baskets being mutually displaceable and being able to be drawn one into the other, at least one collecting basket (10) is umbrella-like in the expanded state and is designed with flexible wire-like adjustment elements for deliberately changing the shape and/or position of the collecting basket so that the object can be captured in the latter and can be drawn into the other collecting basket (20).

    摘要翻译: 在用于从人体或动物身体中的空腔(3)提取物体(2),特别是凝块,异物等的提取装置(1)中,具有第一和第二可压缩和可扩张的收集篮(10,20, 其中物体(2)可以被捕获,所述收集篮可相互移动并且能够被一个拉伸到另一个中,至少一个收集篮(10)处于膨胀状态的伞状,并且是 设计有用于故意改变收集篮的形状和/或位置的柔性线状调节元件,使得物体可以在后者中被捕获并且可以被吸入另一个收集篮(20)。

    Induction heating device and method for metallic implants in living beings
    7.
    发明授权
    Induction heating device and method for metallic implants in living beings 失效
    感应加热装置和生物金属植入物的方法

    公开(公告)号:US06238421B1

    公开(公告)日:2001-05-29

    申请号:US08911658

    申请日:1997-08-15

    IPC分类号: A01N140

    CPC分类号: A61N1/406 A61B2017/22002

    摘要: A system and method for heating cells surrounding metallic implants in living beings. The system includes a metallic implant within the living being, surrounded by the cells to be heated, an induction coil having an aperture sufficiently large to accommodate a portion of the living being containing the metallic implant, and an RF generator coupled to the coil to apply an electric RF signal thereto, the RF signal ranging in frequency from 10 kilohertz to 10 megahertz. The metallic implant is inductively heatable by the application of the RF signal to the induction coil.

    摘要翻译: 一种用于在生物体内加热金属植入物周围的细胞的系统和方法。 该系统包括在生物体内的金属植入物,被待加热的细胞包围,感应线圈具有足够大的孔径以容纳包含金属植入物的一部分生物体,以及耦合到线圈的RF发生器以施加 RF信号,其频率范围从10千赫兹到10兆赫。 通过将RF信号施加到感应线圈,金属植入物可感应加热。

    Method of taking internal physiological measurements
    9.
    发明申请
    Method of taking internal physiological measurements 审中-公开
    采取内部生理测量的方法

    公开(公告)号:US20090088609A1

    公开(公告)日:2009-04-02

    申请号:US11919774

    申请日:2006-04-28

    IPC分类号: A61B5/00 A61M25/00

    摘要: The invention relates to a device for detecting physiological measured variables within the body, comprising a catheter which has a tip supporting a sensor and which can be introduced into a blood vessel, the catheter (1) being connected to a transponder unit (2) for wireless transmission of at least one measured variable to an external reading station which is arranged outside the blood vessel (4) after insertion of the catheter (1) into said blood vessel (4), the catheter (1) and the transponder (2) being sealed in a leaktight manner. The invention also relates to a sluice/sleeve for coaxial arrangement on an element for insertion into a blood vessel, in particular a needle and/or a catheter, the sluice/sleeve (6,10,11) being able to be divided at least once in the longitudinal direction.

    摘要翻译: 本发明涉及一种用于检测体内生理测量变量的装置,包括:导管,其具有支撑传感器并能够被引入血管的尖端,所述导管(1)连接到应答器单元(2),用于 将导管(1)插入所述血管(4),所述导管(1)和所述应答器(2)中之后,布置在所述血管(4)外部的外部读取站的至少一个测量变量的无线传输, 以密封方式密封。 本发明还涉及一种在用于插入血管,特别是针和/或导管的元件上用于同轴布置的闸门/套筒,所述闸门/套筒(6,10,11)能够至少被划分 一次在纵向。

    Apparatus for fragmentation of a lung or heart embolus
    10.
    发明授权
    Apparatus for fragmentation of a lung or heart embolus 失效
    用于肺或心脏栓塞破裂的装置

    公开(公告)号:US5630823A

    公开(公告)日:1997-05-20

    申请号:US459272

    申请日:1995-06-02

    IPC分类号: A61B17/22 A61M25/00

    摘要: Method and apparatus for fragmentation of a lung embolus. The apparatus includes a catheter that is introduced over a guide wire to the site of the lung embolism in the vascular system of a patient. When the guide wire is withdrawn from the distal end segment of the catheter, the distal end segment bends back proximally. An opening in the bend of the catheter is in line with the central axis of the catheter when the distal end segment is in a curved configuration. The guide wire is then advanced to extend distally from the catheter opening past the embolism and stabilize the longitudinal position of the catheter in the blood vessel. The apparatus also includes a thread for pulling the bent distal end segment into a generally oval-shaped loop condition and stabilizing the loop about the embolism. The looped catheter is then rotated and moved longitudinally back and forth for mechanically destroying the embolism. To return the catheter to a straight condition, the rigid guide wire is withdrawn from the catheter, and a guide wire with a resilient J-tip is advanced to the distal end segment of the catheter. The J-tip guide wire follows the catheter past the catheter opening, thereby straightening the catheter for removal from the body. The apparatus optionally includes a handle or motor positioned at the proximal end of the apparatus.

    摘要翻译: 肺栓塞破裂的方法和装置。 该装置包括导管,导管穿过患者血管系统中的肺栓塞部位。 当引导线从导管的远端部分撤出时,远端部分向近侧弯曲。 当远端段处于弯曲形状时,导管弯曲处的开口与导管的中心轴线一致。 导丝然后前进以从导管开口向远侧延伸穿过栓塞,并将导管的纵向位置稳定在血管中。 该装置还包括用于将弯曲的远端段拉伸成大致椭圆形的环状并且围绕栓塞稳定环的螺纹。 然后将环形导管旋转并纵向前后移动以机械地破坏栓塞。 为了将导管返回到直线状态,刚性导丝从导管中取出,并且具有弹性J型尖端的引导线前进到导管的远端段。 J型引导线沿着导管穿过导管开口,从而矫正导管以从体内移除。 该设备可选地包括位于设备近端的手柄或马达。