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    Surgical retractor and surgical method
    2.
    发明授权
    Surgical retractor and surgical method 失效
    手术牵开器及手术方法

    公开(公告)号：US5339801A

    公开(公告)日：1994-08-23

    申请号：US850652

    申请日：1992-03-12

    申请人： Alexander Poloyko ,  Mark C. Goldberg ,  Edward M. Goldberg ,  Lev A. Melinyshyn ,  David E. Schucart

    发明人： Alexander Poloyko ,  Mark C. Goldberg ,  Edward M. Goldberg ,  Lev A. Melinyshyn ,  David E. Schucart

    IPC分类号： A61B17/00 ,  A61B17/02 ,  A61B17/28

    CPC分类号： A61B17/0218 ,  A61B2017/2936

    摘要： A surgical retractor having a plurality of widenable and narrowable blades of substantial width, having tissue-contacting surfaces that are not significantly narrower, in a collapsed position, than a guide tube for guiding the retractor blades through a surgical access port to a surgical site during a minimally invasive surgical procedure. Each retractor blade includes a relatively large, preferably planar, tissue-contacting surface for displacing or repositioning internal body tissue, such as an internal organ, for temporary displacement away from the surgical site. After insertion through a surgical access port one or more of the retractor blades can be widened laterally to substantially space distal ends of the retractor blades apart for maximum contact against and over a substantial area of the tissue to be displaced during the surgical procedure. After completion of the operative procedure, the retractor blades can be narrowed by nesting the blades together and the retractor can be easily and safely withdrawn from the access port.

    摘要翻译： 一种手术牵开器，其具有多个宽度可变且可变窄的刀片，所述多个宽度可变且可变窄的刀片具有在折叠位置上不显着变窄的组织接触表面，该引导管用于将牵开器刀片通过手术进入端口引导至外科手术部位 微创外科手术。 每个收缩器叶片包括相对大的，优选平面的组织接触表面，用于移位或重新定位诸如内部器官的内部身体组织，用于远离手术部位的临时位移。 在通过手术进入口插入之后，可以横向加宽一个或多个牵开器叶片，以使牵开器叶片的远端基本上间隔开，以在外科手术过程中最大程度地接触组织的大部分区域以移动。 在完成手术过程之后，可以通过将叶片嵌套在一起而使收缩器叶片变窄，并且牵开器可以容易且安全地从进入端口撤出。

    Catheter
    4.
    发明授权
    Catheter 失效
    导管

    公开(公告)号：US5643228A

    公开(公告)日：1997-07-01

    申请号：US557716

    申请日：1995-11-13

    申请人： David E. Schucart ,  Edward M. Goldberg ,  Lev A. Melinyshyn

    发明人： David E. Schucart ,  Edward M. Goldberg ,  Lev A. Melinyshyn

    IPC分类号： A61M25/00

    CPC分类号： A61M25/007

    摘要： A catheter for introducing fluid into the vascular system includes ports in the catheter's sidewall which are obliquely angled with respect to the longitudinal axis of the catheter. Certain pairs of ports are oriented toward each other, and certain other pairs of ports are oriented away from each other. The arrangement of ports causes fluid to exit the ports in streams which are oriented at oblique angles corresponding to the angles of the port. The obliquely angled streams create advantageous circulation paths proximate to the catheter which generally improve efficacy of the injected fluid associated with the medical application. The catheter may be used for a variety of purposes, including to perform thrombolysis.

    摘要翻译： 用于将流体引入血管系统的导管包括导管侧壁中相对于导管的纵向轴线倾斜成角度的端口。 特定的一对端口朝向彼此，并且某些其它端口对被定向为彼此远离。 端口的布置导致流体以与端口的角度相对应的倾斜角度定向的流中离开端口。 倾斜的流形成靠近导管的有利的循环路径，其通常改善与医疗应用相关联的注入的流体的功效。 导管可用于各种目的，包括进行溶栓治疗。