CARDIOPLEGIA CATHETER SYSTEM
    1.
    发明申请
    CARDIOPLEGIA CATHETER SYSTEM 审中-公开
    CARDIOPLEGIA导管系统

    公开(公告)号:WO1996017644A1

    公开(公告)日:1996-06-13

    申请号:PCT/US1995015014

    申请日:1995-11-21

    Abstract: A catheter system is provided for accessing the coronary ostia (176, 180) transluminal from a peripheral arterial access site, such as the femoral artery, and for inducing cardioplegia arrest by direct infusion of cardioplegia solution into the coronary arteries. In a first embodiment, the catheter system is in the form of a single perfusion catheter (20) with multiple distal branches (24, 26, 28) for engaging the coronary ostia (176, 180). In a second embodiment, multiple perfusion catheters (82, 84) are delivered to the coronary ostia (176, 180) through a single arterial cannula (104). In a third embodiment, multiple perfusion catheters (112, 114, 116) are delivered to the coronary ostia (176, 180) through a single guiding catheter (126). In a fourth embodiment, multiple catheters (140, 142, 144) are delivered to the coronary ostia (176, 180) through a single guiding catheter (130) which has distal exit ports (134, 136, 138) that are arranged to direct the perfusion catheters into the coronary ostia (176, 180). In each embodiment, the catheters (20) are equipped with an occlusion means (30, 50) at the distal end of the catheter (20) for closing the coronary ostia (176, 180), and isolating the coronary arteries from the systemic blood flow.

    Abstract translation: 提供导管系统用于从外周动脉进入部位(例如股动脉)进入腔内的冠状动脉口(176,180),并通过将心麻痹液直接输注到冠状动脉中诱导停搏。 在第一实施例中,导管系统是具有用于接合冠状动脉口(176,180)的多个远端分支(24,26,28)的单个灌注导管(20)的形式。 在第二实施例中,多个灌注导管(82,84)通过单个动脉插管(104)输送到冠状动脉口(176,180)。 在第三实施例中,多个灌注导管(112,114,116)通过单个引导导管(126)输送到冠状动脉口(176,180)。 在第四实施例中,多个导管(140,142,144)通过具有远端出口(134,136,138)的单个引导导管(130)输送到冠状动脉口(176,180),所述导向导管设置成引导 灌注导管进入冠状动脉口(176,180)。 在每个实施例中,导管(20)在导管(20)的远端配备有闭塞装置(30,50),用于封闭冠状动脉口(176,180),并将冠状动脉与全身血液隔离 流。

    METHODS AND DEVICES FOR IMPLANTING CARDIAC VALVES
    5.
    发明公开
    METHODS AND DEVICES FOR IMPLANTING CARDIAC VALVES 审中-公开
    方法和装置植入心脏瓣膜

    公开(公告)号:EP1164976A1

    公开(公告)日:2002-01-02

    申请号:EP00908559.8

    申请日:2000-02-09

    Abstract: The valve implantation system has a valve displacer (8) for displacing, and holding the native valve leaflets open in a first aspect of the invention. A replacement valve (6) may be attached to the valve displacer before or after introduction, and may be positioned independent of the valve displacer. In another aspect of the invention, the valve displacer and the valve are in a collapsed condition during introduction, are expanded to deploy the valve displacer, and valve. The valve is a tissue valve (38) mounted to an expandable support structure (26). The support structure may have protrusions (34) for engaging the valve displacer or barbs for anchoring the valve displacer to the heart or blood vessel. A temporary valve mechanism (40) may be used to provide temporary valve functions during, and after deployment of the valve displacer.

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