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53 条记录 (耗时 0.033 秒)

    Sizing catheter for measuring septal defects
    21.
    发明授权
    Sizing catheter for measuring septal defects 有权
    用于测量间隔缺损的尺寸导管

    公开(公告)号：US06241678B1

    公开(公告)日：2001-06-05

    申请号：US09137949

    申请日：1998-08-21

    申请人： Michael R. Afremov ,  Kurt Amplatz

    发明人： Michael R. Afremov ,  Kurt Amplatz

    IPC分类号： A61B502

    CPC分类号： A61M25/10 ,  A61B5/1076

    摘要： A sizing catheter and method of measuring a preselected internal opening within a patient to provide a rapid and precise determination of a stretched diameter of the preselected internal opening. The sizing catheter includes a dilation balloon constructed of a thin expandable plastic which is inflatable and is utilized to determine a size of the preselected opening. The dilation balloon is inflated to an inflation threshold, wherein the dilation balloon deforms about the preselected opening and the size of the dilation balloon adjacent the preselected opening approximates a stretched diameter of the preselected opening. The sizing catheter and method may be utilized to determine an appropriate sized occluding device to thereby occlude the preselected opening.

    摘要翻译： 尺寸导管和测量患者内的预选内部开口的方法，以提供对预选内部开口的拉伸直径的快速和精确的确定。 定径导管包括由可膨胀的薄的可膨胀塑料构成的膨胀气囊，并且用于确定预选开口的尺寸。 膨胀气囊膨胀到充气阈值，其中扩张气囊围绕预选开口变形，并且与预选开口相邻的扩张球囊的尺寸近似于预选开口的拉伸直径。 定径导管和方法可用于确定适当大小的闭塞装置，从而封闭预选的开口。

    Lubricious antithrombogenic catheters, guidewires and coatings
    23.
    发明授权
    Lubricious antithrombogenic catheters, guidewires and coatings 失效
    润滑性抗生素导管，指南和涂层

    公开(公告)号：US5135516A

    公开(公告)日：1992-08-04

    申请号：US451507

    申请日：1989-12-15

    申请人： Ronald Sahatjian ,  Kurt Amplatz

    发明人： Ronald Sahatjian ,  Kurt Amplatz

    IPC分类号： A61L33/00 ,  A61M25/00

    CPC分类号： A61M25/0045 ,  A61L33/0023 ,  A61L33/0029 ,  A61M2025/0046

    摘要： Method for rendering a preformed article lubricious and antithrombogenic and a device being the same. On the surface of the article a thin coating of a biologically compatible, lubricious, hydrophilic polymer including acid groups, is provided. On the coating, ammonium cation, and heparin are applied in the manner that heparin is bound by electrostatic attraction to the ammonium cation of the coating to permit time release of heparin. A buffer solution may be applied in a manner to act to enhance the lubriciousness of the coating.

    摘要翻译： 用于使预成型制品具有光滑和抗血栓形成的方法和与之相同的装置。 在制品的表面上提供了包含酸基团的生物相容的，润滑的亲水性聚合物的薄涂层。 在涂层上，铵盐阳离子和肝素以使肝素被静电吸引到涂层的铵阳离子结合以允许肝素释放的方式施用。 缓冲溶液可以以提高涂层的光泽度的方式起作用。

    Stent graft for reinforcement of vascular abnormalities and associated method
    26.
    发明授权
    Stent graft for reinforcement of vascular abnormalities and associated method 有权
    支架移植用于加强血管异常及相关方法

    公开(公告)号：US08163004B2

    公开(公告)日：2012-04-24

    申请号：US12032938

    申请日：2008-02-18

    申请人： Kurt Amplatz ,  Robert Laine

    发明人： Kurt Amplatz ,  Robert Laine

    IPC分类号： A61F2/06

    CPC分类号： A61F2/07 ,  A61F2/90 ,  A61F2250/0037 ,  A61F2250/0039

    摘要： A stent graft for reinforcement of a vascular abnormalities and an associated method are provided. According to one embodiment, the stent graft includes a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration. The tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and the tubular structure is heat set such that at least a portion of the proximal and/or distal ends is configured to fold over on itself when unconstrained.

    摘要翻译： 提供了用于增强血管异常的支架移植物和相关方法。 根据一个实施例，支架移植物包括柔性管状结构，其包括近端和远端并具有膨胀的热定形构型。 管状结构被配置为被限制到比膨胀的热定形构造更小的直径，并且管状结构被热定形，使得近端和/或远端的至少一部分被配置成在不受约束的情况下自身折叠。

    Alignment member for delivering a non-symmetrical device with a predefined orientation
    28.
    发明授权
    Alignment member for delivering a non-symmetrical device with a predefined orientation 有权
    用于递送具有预定义取向的非对称装置的对准构件

    公开(公告)号：US06402772B1

    公开(公告)日：2002-06-11

    申请号：US09981736

    申请日：2001-10-17

    申请人： Kurt Amplatz ,  Michael Afremov

    发明人： Kurt Amplatz ,  Michael Afremov

    IPC分类号： A61B1700

    CPC分类号： A61B17/12022 ,  A61B17/12109 ,  A61B17/12172 ,  A61B2017/00455 ,  A61B2017/00592 ,  A61B2017/00606 ,  A61B2017/00623 ,  A61B2017/12095

    摘要： A method for delivering an object within a patient, wherein the object is delivered in a preferred orientation relative to the delivery site of the patient. The delivery device has an alignment member that allows the object to be delivered intravascularly to the delivery site of the patient, wherein the object is delivered in a pre-determined orientation. The object may, for example, be non-symmetric or include a configuration that requires delivery to the site in only one suitable orientation relative to the delivery site. Such objects may be used, for example, to treat certain defects or injuries in vessels or organs within a patient's body.

    摘要翻译： 一种用于递送患者体内的物体的方法，其中所述物体相对于患者的递送部位以优选的方向递送。 递送装置具有对准构件，其允许物体血管内输送到患者的输送部位，其中物体以预定方向递送。 例如，该对象可以是非对称的，或者包括需要相对于递送部位仅以一个合适方向递送到该站点的配置。 这样的物体可以用于例如治疗患者体内的血管或器官中的某些缺陷或损伤。

    Scanning x-ray system
    30.
    发明授权
    Scanning x-ray system 失效

    公开(公告)号：US4361899A

    公开(公告)日：1982-11-30

    申请号：US253182

    申请日：1981-04-13

    申请人： Kurt Amplatz

    发明人： Kurt Amplatz

    IPC分类号： A61B6/02 ,  A61B6/06 ,  G03B41/16

    CPC分类号： A61B6/02 ,  A61B6/06 ,  A61B6/4464

    摘要： An x-ray apparatus uses an x-ray tube which is pivoted about a pivot axis to provide scanning of an x-ray beam. The pivot axis passes essentially through the center of the focal spot on the target surface of the anode of the tube, is essentially perpendicular to the anode-cathode axis, and is essentially parallel to a film plane defined by the x-ray film. The scanning of the x-ray beam by pivoting the x-ray tube results in improved systems for standard radiography, linear tomography, and large-scale angiography. In standard radiography and large scale angiography systems, moving primary and secondary slots synchronized with the pivoting of the x-ray tube provide efficient removal of secondary radiation. In linear tomography systems, the object and film are moved synchronously with the pivoting of the x-ray tube, and primary and secondary slots which are stationary remove secondary radiation.