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    • 62. 发明授权
    • Bifurcated venous cannula
    • 分叉静脉插管
    • US6086557A
    • 2000-07-11
    • US165162
    • 1998-10-01
    • Dwight P. MorejohnMichael V. Morejohn
    • Dwight P. MorejohnMichael V. Morejohn
    • A61B17/00A61B17/22A61F2/958A61M1/36A61M25/00A61N5/00
    • A61M25/0041A61M1/3659A61B2017/00243A61B2017/22067A61M2025/0036A61M2025/1045A61M25/0032A61M25/1011
    • A cannula for draining blood from a patient's heart during cardiac surgery including a main body and a pair of branches extending distally therefrom. The branches are biased to extend away from one another by pre-shaped stiffening elements, and have "D" shaped cross-sections defining flat surfaces oriented generally towards one another. The branches may be constrained in a retracted position, the flat surfaces abutting one another, and the resulting profile forming a substantially continuous extension of the main body. The branches have distal tips including drainage holes and occlusion balloons, and elbow portions including accordion-like ridges for preventing kinking. Grooves in the flat surfaces define a secondary lumen in the retracted position through which a cardioplegia delivery or an imaging device may be advanced. The cannula is directed into a trocar to constrain the branches in the retracted position, and the trocar is inserted into the right atrium. The trocar is withdrawn to deploy the branches, which automatically extend away from one another, assuming a tripartite configuration wherein the branches extend substantially transversely from the main body, and enter the superior and inferior vena cavae. The occlusion balloons are inflated to isolate the vena cavae and blood is drained therefrom for delivery to a pump-oxygenator. A cardioplegia delivery device is advanced through the secondary lumen into the coronary sinus, an occlusion balloon on a distal tip of the device is inflated to isolate the coronary sinus, and retrograde delivery of cardioplegia is achieved.
    • 用于在心脏手术期间从患者心脏排出血液的插管,包括主体和从其向远端延伸的一对分支。 分支被偏置以通过预形加固元件彼此远离延伸,并且具有限定通常彼此朝向的平坦表面的“D”形横截面。 分支可以被限制在缩回位置,平坦表面彼此邻接,并且所得到的轮廓形成主体的基本上连续的延伸部。 分支具有远端尖端,包括排水孔和闭塞气囊,肘部包括用于防止扭结的手风琴状脊。 在平坦表面中的凹槽限定了处于缩回位置的第二内腔,通过该凹陷可以使心麻痹输送或成像装置前进。 套管被引导到套管针中以将分支限制在缩回位置,套针针插入右心房。 套管针被撤回以部署分支,其自动地彼此延伸,假设分支基本上横向于主体延伸并进入上下腔静脉的三方结构。 闭塞气囊被充气以分离腔静脉,并且将血液从其中排出以输送到泵 - 氧合器。 心麻痹递送装置通过次级内腔进入冠状窦,将装置的远端顶端的闭塞气囊充气以隔离冠状窦,并实现逆行递送麻痹。
    • 65. 发明授权
    • Low profile vessel occluder with and without detachable applicator
    • 具有和不具有可拆卸涂抹器的低轮廓血管封堵器
    • US6001111A
    • 1999-12-14
    • US8113
    • 1998-01-16
    • Ivan SepetkaRobert G. MathenyJames A. MagovernDwight P. MorejohnRobert C. Glines
    • Ivan SepetkaRobert G. MathenyJames A. MagovernDwight P. MorejohnRobert C. Glines
    • A61B17/04A61B17/06A61B17/064A61B17/122A61B17/128A61B17/00
    • A61B17/122A61B17/0487A61B17/06A61B17/0643A61B17/128A61B2017/0461A61B2017/0464
    • A low profile unobtrusive occluder device is disclosed which is particularly applicable for occluding blood vessels in minimally invasive beating heart CABG surgical procedures, wherein relatively small surgical openings are provided. At least one flexible member is provided on the occluder, which is placed against the vessel. A suture thread is passed under the vessel to encompass the vessel between the occluder and suture thread. The suture thread is selectively attached to the occluder such that the flexible member, when deformed, applies continuous selected tension on the suture thread to apply a corresponding compression on the vessel which occludes the flow of blood. An applicator is attached to the occluder to enable installation thereof, but is detachable after installation such that only the low profile occluder remains on the heart surface during surgery. The applicator is re-attached to the occluder to facilitate removal of the latter. In an alternative embodiment, the occluder is formed as an adjustable part of a heart contacting member of a thoracotomy stabilizer apparatus.
    • 公开了一种低调的不引人注意的闭塞器装置,其特别适用于在微创搏动心脏CABG外科手术中闭塞血管,其中提供了相对较小的手术开口。 至少一个柔性构件设置在封闭器上,其抵靠容器放置。 缝合线在血管下方通过封闭器和缝合线之间的容器。 缝合线选择性地附接到闭塞器,使得当变形时,柔性构件在缝合线上施加连续的选定张力,以在封闭血流的血管上施加相应的压缩。 敷贴器附接到封堵器以使其能够安装,但是在安装之后可拆卸,使得在外科手术期间只有低轮廓的封堵器保留在心脏表面上。 将施用器重新连接到封堵器以便于去除封堵器。 在替代实施例中,封堵器形成为开胸稳定器装置的心脏接触构件的可调部分。