Pulse fluid infusion systems
    3.
    发明授权
    Pulse fluid infusion systems 失效
    脉冲输液系统

    公开(公告)号:US5968017A

    公开(公告)日:1999-10-19

    申请号:US950273

    申请日:1997-10-14

    摘要: A fluid infusion system includes a pump having a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed within the finger rest and is configured to receive a fluid supply syringe. A plunger, mounted to the handle, is slidably received within the dispensing barrel. As the plunger is advanced within the barrel, fluid is dispensed from the pump. As the plunge is retracted within the barrel, the barrel is automatically filed with a fluid. The nozzle of the pump is fluid coupled to a hemostasis valve which is in turn fluid coupled to an infusion catheter. The infusion catheter has a distal end with an enlarged tip opening and a plurality of small infusion holes extending through the side thereof. An annular sensing ridge radially inwardly projects from the interior of the catheter at the tip opening. An occluding wire has an enlarged occluding ball positioned at the end thereof and is configured to occlude the distal end of the catheter. Projecting from the occluding ball on the side opposite of the positioning wire is a coiled spring wire. The spring wire vibrates against the sensing ridge as it passes therethrough.

    摘要翻译: 流体输注系统包括具有可滑动地与手柄相互作用的主体的泵。 主体包括与入口通道,出口通道和分配筒联接的阀壳流体。 手指从分配桶刚性地突出。 装载室凹入指状托架内并构造成容纳流体供应注射器。 安装到手柄上的柱塞可滑动地容纳在分配筒内。 当柱塞在桶内推进时,流体从泵中分配。 当入口在桶内缩回时,桶被自动流出。 泵的喷嘴流体联接到止血阀,止血阀又流体连接到输注导管。 输液导管具有远端,其具有扩大的顶端开口和多个延伸穿过其侧面的小注入孔。 环形感测脊径向向内从导管的内部在尖端开口突出。 闭塞线具有位于其末端的扩大的闭塞球,并且构造成闭塞导管的远端。 在定位线的相对侧的闭塞球的投射是螺旋弹簧丝。 当弹簧线通过时,弹簧线抵靠传感脊振动。

    Catheter with improved spray pattern for pharmaco-mechanical
thrombolysis therapy
    4.
    发明授权
    Catheter with improved spray pattern for pharmaco-mechanical thrombolysis therapy 失效
    具有改进喷雾模式的导管用于药物机械溶栓治疗

    公开(公告)号:US5957901A

    公开(公告)日:1999-09-28

    申请号:US949893

    申请日:1997-10-14

    IPC分类号: A61B17/22 A61M25/00 A61M5/00

    摘要: An improved catheter includes a double spiral configuration of infusion holes around the circumference and along the length of the catheter which provides an improved lateral dispersion of a thrombolytic fluid to more completely and quickly lyse a clot through which the catheter is passing. The double spiral configuration consists of groups or sets of infusion holes, typically groups of four. The holes in each set are longitudinally spaced from each other at substantially regular intervals along the length of the catheter. Each successive hole in a given group is circumferentially spaced by an angular distance of about 90.degree. around the circumference of the catheter relative to the immediately preceding hole. Each group of holes is circumferentially spaced or offset by an angular distance of between 1.degree. and 89.degree. relative to the immediately preceding group of holes. Typically, the angular spacing between successive groups of holes is 18.degree..

    摘要翻译: 改进的导管包括围绕圆周并且沿着导管的长度的输注孔的双螺旋构造,其提供溶栓溶液的改进的横向分散以更完全和快速地溶解导管通过的凝块。 双螺旋配置由一组或多组输注孔组成,通常为四组。 每个组中的孔沿着导管的长度以基本上规则的间隔彼此纵向间隔开。 给定组中的每个连续的孔围绕导管的圆周相对于紧接在前的孔周向间隔约90度的角距离。 每组孔相对于前一组孔周向间隔或偏移1°至89°的角距离。 通常,连续孔组之间的角度间隔为18°。