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35 条记录 (耗时 0.052 秒)

    Venous valvuloplasty device and method
    12.
    发明授权
    Venous valvuloplasty device and method 失效
    静脉瓣膜成形术装置及方法

    公开(公告)号：US06932838B2

    公开(公告)日：2005-08-23

    申请号：US09968301

    申请日：2001-10-01

    申请人： Robert S. Schwartz ,  Robert A. Van Tassel

    发明人： Robert S. Schwartz ,  Robert A. Van Tassel

    IPC分类号： A61B17/064 ,  A61F2/24 ,  A61F2/06

    CPC分类号： A61F2/2475 ,  A61B17/064 ,  A61B2017/0641 ,  A61F2/2412 ,  A61F2/2418 ,  A61F2/2442 ,  A61F2/2445 ,  A61F2220/0008 ,  A61F2220/0016 ,  A61F2250/0031

    摘要： A device 10 and method for replacing or restoring competence to incompetent valves. The device 10 is inserted percutaneously or surgically and is preferably constructed of a material capable of promoting cellular ingrowth such that, eventually, native biologic tissue completely covers the device 10 insulating the blood flow therefrom. The material is preferably bioabsorbable over time, allowing the device to harbor the regeneration of a valve structure and to later become absorbed by the body. The device is sized and arranged to mimic the valve it is replacing or repairing.

    摘要翻译： 一种装置10以及用于替代或恢复不适用阀门的能力的方法。 装置10经皮或手术插入，并且优选地由能够促进细胞向内生长的材料构成，使得最终天然生物组织完全覆盖将血流从其绝缘的装置10。 该材料优选随时间生物吸收，允许该装置承载阀结构的再生并且稍后被身体吸收。 该装置的尺寸和布置方式可模拟正在更换或修理的阀门。

    Hemostatic agent delivery device having built-in pressure sensor
    13.
    发明授权
    Hemostatic agent delivery device having built-in pressure sensor 失效
    止血剂输送装置，内置压力传感器

    公开(公告)号：US5855559A

    公开(公告)日：1999-01-05

    申请号：US800047

    申请日：1997-02-14

    申请人： Robert A. Van Tassel ,  Robert S. Schwartz ,  David Holms ,  Mark A. Rydell

    发明人： Robert A. Van Tassel ,  Robert S. Schwartz ,  David Holms ,  Mark A. Rydell

    IPC分类号： A61B17/00 ,  A61B5/00

    CPC分类号： A61B17/00491 ,  A61B17/0057 ,  A61B2017/00495 ,  A61B2017/00672

    摘要： An instrument for achieving rapid hemostasis at the conclusion of a catheterization procedure comprising a hemostatic agent injection device for use with a conventional introducer sheath used to gain access to the blood vessel. The injection device includes an elongated tubular member having ejection ports proximate its distal end. A hub member is located on the proximal end of the tubular member and includes an elongated groove or track located in its surface with a transparent cover. The enclosed track is in fluid communication with the lumen extending through the tubular member. After the catheterization procedure, the instrument is inserted into the introducer sheath. Blood flows into the lumen of the device and into the enclosed track. The leading edge of the blood pulsates within the enclosed track, clearly indicating that the ports are located in the blood vessel and subjected to variations in blood pressure. The instrument and introducer sheath are then slowly retracted as a unit in the puncture wound. The blood flow will stop pulsating in the enclosed track when the ports have exited the blood vessel wall. A hemostatic agent is then injected by the instrument adjacent the vessel wall.

    摘要翻译： 一种用于在导尿术程序结束时实现快速止血的仪器，其包括用于与用于进入血管的通道的常规导引鞘一起使用的止血剂注射装置。 注射装置包括细长管状构件，其具有靠近其远端的排出口。 毂构件位于管状构件的近端上并且包括位于其表面中的具有透明盖的细长凹槽或轨道。 封闭的轨道与延伸穿过管状构件的内腔流体连通。 导管术后，将仪器插入导引鞘内。 血液流入设备的内腔并进入封闭的轨道。 血液的前缘在封闭的轨道内脉动，清楚地表明端口位于血管中并经受血压变化。 然后将仪器和引导器护套作为穿刺伤口中的单元缓慢缩回。 当港口离开血管壁时，血液流动将停止在封闭轨道中的脉动。 然后通过仪器在血管壁附近注射止血剂。

    Methods And Systems For Controlling Blood Pressure By Controlling Atrial Pressure
    14.
    发明申请
    Methods And Systems For Controlling Blood Pressure By Controlling Atrial Pressure 有权
    通过控制心房压力控制血压的方法和系统

    公开(公告)号：US20150258342A1

    公开(公告)日：2015-09-17

    申请号：US14667931

    申请日：2015-03-25

    申请人： Yuval Mika ,  Darren Sherman ,  Robert S. Schwartz ,  Robert A. Van Tassel ,  Daniel Burkhoff

    发明人： Yuval Mika ,  Darren Sherman ,  Robert S. Schwartz ,  Robert A. Van Tassel ,  Daniel Burkhoff

    IPC分类号： A61N1/365

    CPC分类号： A61N1/36564 ,  A61F2/2412 ,  A61F2/2424 ,  A61F2250/0013 ,  A61N1/36117 ,  A61N1/36514 ,  A61N1/36528 ,  A61N1/36571 ,  A61N1/36578 ,  A61N1/36585 ,  A61N1/3682 ,  A61N1/3684

    摘要： Systems and methods for controlling blood pressure by controlling atrial pressure and atrial stretch are disclosed. In some embodiments, a stimulation circuit may be configured to deliver a stimulation pulse to at least one cardiac chamber of a heart of a patient, and at least one controller may be configured to execute delivery of one or more stimulation patterns of stimulation pulses to the at least one cardiac chamber, wherein at least one of the stimulation pulses stimulates the heart such that an atrial pressure resulting from atrial contraction of an atrium overlaps in time a passive pressure build-up of the atrium, such that an atrial pressure of the atrium resulting from the stimulation is a combination of the atrial pressure resulting from atrial contraction and the passive pressure build-up and is higher than an atrial pressure of the atrium would be without the stimulation, and such that the blood pressure of the patient is reduced.

    摘要翻译： 公开了通过控制心房压力和心房伸展来控制血压的系统和方法。 在一些实施例中，刺激电路可以被配置为将刺激脉冲传送到患者心脏的至少一个心室，并且至少一个控制器可以被配置为执行刺激脉冲的一个或多个刺激模式的传送到 至少一个心室，其中所述刺激脉冲中的至少一个刺激心脏使得由心房的心房收缩引起的心房压力在时间上与心房的被动压力积聚重叠，使得心房的心房压力 由刺激引起的是由心房收缩和被动压力积聚引起的心房压力的组合，并且高于心房的心房压力将没有刺激，并且使得患者的血压降低。