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    Catheter obturator with automatic feed and control
    2.
    发明授权
    Catheter obturator with automatic feed and control 失效
    导管闭塞器具有自动进料和控制

    公开(公告)号：US5064415A

    公开(公告)日：1991-11-12

    申请号：US568923

    申请日：1990-08-17

    申请人： Anthony J. Walder ,  Donald D. Solomon

    发明人： Anthony J. Walder ,  Donald D. Solomon

    IPC分类号： A61M25/00 ,  A61M25/01

    CPC分类号： A61M25/0113 ,  A61M25/0017

    摘要： An obturator is provided which allows for placing and withdrawing of a single catheter obturator over an extended period of time so as to allow spaced intervals of use, and non-use of a catheter while in place in the patient's skin, while at the same time doing away with cumbersome, costly and time consuming administration and maintenance of saline and heparin locks. The device feeds the obturator in place for occluding the catheter lumen, when no fluids are being administered to the patient, and then may be retracted to a position allowing fluid feed through a supply tube connection to the catheter. The device includes a coating on the obturator rod which swells in contact with aqueous fluids to seal completely the catheter lumen which coating includes heparin to prevent clotting. Moreover, the entire internal functioning arrangement remains sterile during the entire period of use, thus avoiding infection.

    摘要翻译： 提供了一种闭孔器，其允许在延长的时间段内放置和取出单个导管闭塞器，以允许间隔的使用间隔，并且在同时在患者皮肤中的适当位置时不使用导管 消除麻醉，昂贵和耗时的盐水和肝素锁的管理和维护。 当没有向患者施用流体时，该装置将闭塞器馈送到适当位置以封闭导管腔，然后可以缩回至允许流体通过与导管连接的供应管的位置。 该装置包括在封闭杆上的涂层，其与水性流体接触膨胀以完全密封导管腔，该涂层包括肝素以防止凝血。 此外，整个内部功能安排在整个使用期间保持不育，从而避免感染。

    Catheter obturator with automatic feed and control
    4.
    发明授权
    Catheter obturator with automatic feed and control 失效
    导管闭塞器具有自动进料和控制

    公开(公告)号：US4976697A

    公开(公告)日：1990-12-11

    申请号：US427422

    申请日：1989-10-26

    申请人： Anthony J. Walder ,  Donald D. Solomon ,  Richard W. Beck ,  James M. Lambert ,  Timothy Ignatius ,  Mark Crawford

    发明人： Anthony J. Walder ,  Donald D. Solomon ,  Richard W. Beck ,  James M. Lambert ,  Timothy Ignatius ,  Mark Crawford

    IPC分类号： A61M25/00 ,  A61M25/01

    CPC分类号： A61M25/0017 ,  A61M25/0113

    摘要： An obturator is provided which allows for placing and withdrawing of a single catheter obturator over an extended period of time so as to allow speed intervals of use, and non-use of a catheter while in place in the patient's skin, while at the same time doing away with cumbersome, costly and time consuming administration and maintenance of saline and heparin locks. The device feeds the obturator in place for occluding the catheter lumen, when no fluids are being administered to the patient, and then may be retracted to a position allowing fluid feed through a supply tube connection to the catheter. The device includes a coating on the obturator rod which swells in contact with aqueous fluids to seal completely the catheter lumen which coating includes heparin to prevent clotting. Moreover, the entire internal functioning arrangement remains sterile during the entire period of use, thus avoiding infection.

    摘要翻译： 提供了一种闭孔器，其允许在延长的时间段内放置和取出单个导管闭塞器，以允许使用速度间隔，并且在同时在患者皮肤中就位时不使用导管 消除麻醉，昂贵和耗时的盐水和肝素锁的管理和维护。 当没有向患者施用流体时，该装置将闭塞器馈送到适当位置以封闭导管腔，然后可以缩回至允许流体通过与导管连接的供应管的位置。 该装置包括在封闭杆上的涂层，其与水性流体接触膨胀以完全密封导管腔，该涂层包括肝素以防止凝血。 此外，整个内部功能安排在整个使用期间保持不育，从而避免感染。

    Needle assembly having an elongate blunting device which allows for venting of air
    7.
    发明授权
    Needle assembly having an elongate blunting device which allows for venting of air 失效
    针组件具有允许排出空气的细长钝化装置

    公开(公告)号：US06328717B1

    公开(公告)日：2001-12-11

    申请号：US09453983

    申请日：1999-12-02

    申请人： Donald D. Solomon ,  Michael L. Miller

    发明人： Donald D. Solomon ,  Michael L. Miller

    IPC分类号： A61M532

    CPC分类号： A61M25/0643 ,  A61B5/15003 ,  A61B5/150213 ,  A61B5/150389 ,  A61B5/150503 ,  A61B5/150641 ,  A61B5/1535 ,  A61M25/065 ,  A61M25/0693 ,  A61M2005/3212

    摘要： The invention generally relates to a needle assembly of the kind having a needle, an elongate blunting device, a shifting member, and a flash chamber. The needle is of the kind that has a needle proximal end, a sharp needle distal end and a needle cannula extending therethrough. The elongate blunting device is at least partially located within the needle cannula. The elongate blunting device is of the kind that has a blunting device proximal end, a blunting device distal end, and a blunting device blood flow passage therethrough through which blood can flow from the blunting device distal end to the blunting device proximal end. The shifting member can be actuated to move relative to the needle and, upon movement relative to the needle, causes movement to the elongate blunting device from a retracted position wherein the blunting device distal end is retracted into the needle cannula so that the sharp needle distal end can penetrate the body, to an extended position wherein the blunting device distal end extends out of the needle cannula so as to prevent the sharp needle distal end from penetrating the body.

    摘要翻译： 本发明一般涉及一种具有针头，细长钝化装置，移动构件和闪光室的针组件。 针是具有针近端，尖针头端和延伸穿过其中的针插管的针。 细长钝化装置至少部分地位于针插管内。 细长钝化装置是具有钝器件近端，钝器装置远端以及穿过其的平坦化装置血流通道的类型，血液可以通过该血流通道从平坦化装置远端流到平稳装置近端。 移动构件可以被致动以相对于针移动，并且在相对于针移动时使其从缩回位置移动到细长的钝化装置，其中平坦化装置远端缩回到针插管中，使得尖锐的针远端 末端可以穿透身体到达延伸位置，其中钝化装置远端延伸出针管，以防止尖锐的针头远端穿透身体。