Electromagnetically operated hydraulic valve device with snap-together
valve housing

    公开(公告)号:US4509716A

    公开(公告)日:1985-04-09

    申请号:US537532

    申请日:1983-09-30

    CPC分类号: F16K31/0665 H01F7/1607

    摘要: The present invention comprises an electromagnetically operated hydraulic valve device (10) providing an almost instantaneously responsive displacement of a ball valve (60) in order to effect fluid flow relative thereto. Hydraulic valve device (10) comprises a generally cylindrical housing (12) having one end (16) open and a bushing (19) extending from the other end (18), with a plurality of longitudinal openings (14) disposed about the perimeter of housing (12). A cylindrical bobbin (30) having an interior through opening (32) is disposed within housing (12) and supports an electrical winding (34), with a core member (20) enclosing the open end (16) of the housing and having a circular post (22) extending into the bobbin opening (32). A nonmagnetizable sleeve (38) is located within the interior of bushing (19) between the bushing and a cylindrically shaped armature (36). One end (37) of the armature has an opening disposed opposite a complementary shaped opening (21) in the end of post (22), a spring (39) being received therebetween. An outer valve casing (40) is disposed over housing bushing (19), the outer valve casing having an interior cavity (45) with a groove (48) disposed in the wall of cavity (45). An inner valve casing (70) having a circumferential boss (74) about the perimeter of the casing is fitted within the interior cavity (45) by means of a leak resistant, snap-together engagement of the circumferential boss (74) and groove (48), and a glass ball valve (60) is captured within a subinterior cavity (75) in the inner valve casing. Ball valve (60) is held in sealing engagement with valve seat (45) by means of a free-floating drive pin (50), the other end of drive pin (50) abutting against armature (36). Energization of winding (34) effects an almost instantaneously responsive displacement of armature (36) whereby ball valve (60) is displaced and engages valve seat 72, relative to valve seat (45) and fluid flow effected thereby.

    SYSTEM AND METHOD FOR SURGICAL NAVIGATION OF MOTION PRESERVATION PROSTHESIS
    2.
    发明申请
    SYSTEM AND METHOD FOR SURGICAL NAVIGATION OF MOTION PRESERVATION PROSTHESIS 审中-公开
    用于运动保护预防的手术导航的系统和方法

    公开(公告)号:US20080161680A1

    公开(公告)日:2008-07-03

    申请号:US11617857

    申请日:2006-12-29

    IPC分类号: A61B5/05 A61F2/44 G06F17/00

    摘要: An image guided surgical system and method for targeting the precise patient specific anatomical placement of surgical instruments and motion preservation implants with surgical navigation. The system and method comprising a surgical navigation system; at least one imaging system coupled to the surgical navigation system; at least one computer coupled to the surgical navigation system and the imaging system having planning software for measuring clinical parameters of anatomy of a subject to be operated on; and at least one display for displaying imaging data, planning data and tracking data.

    摘要翻译: 一种图像引导手术系统和方法,用于针对手术导航的手术器械和运动保留植入物的精确患者特异性解剖放置。 该系统和方法包括外科导航系统; 耦合到所述外科导航系统的至少一个成像系统; 耦合到外科导航系统的至少一个计算机和具有用于测量待操作对象的解剖结构的临床参数的计划软件的成像系统; 以及用于显示成像数据,规划数据和跟踪数据的至少一个显示器。