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18 条记录 (耗时 0.025 秒)

    Process of making a catheter
    16.
    发明授权
    Process of making a catheter 有权
    制作导管的过程

    公开(公告)号：US06740277B2

    公开(公告)日：2004-05-25

    申请号：US10131365

    申请日：2002-04-24

    申请人： Glade Harold Howell ,  Cynthia Anne Castro

    发明人： Glade Harold Howell ,  Cynthia Anne Castro

    IPC分类号： B29C4720

    CPC分类号： A61M25/001 ,  A61M25/0023 ,  A61M25/0068 ,  A61M25/0606 ,  B29C47/00 ,  B29C47/0023 ,  B29C47/003 ,  B29C47/0033

    摘要： An over-the-needle catheter assembly includes a tube made of a flexible, biocompatible material. The tube has a proximal portion, a distal portion and a catheter tip positioned on the distal portion remote from the proximal portion. A lumen extends through the tube, substantially co-axially with the tube, from the proximal portion, through the distal portion and through to the catheter tip. The lumen cross-section at the proximal portion is larger than the cross-section at the distal portion. A shoulder is disposed in the lumen between the distal portion and the proximate portion. A catheter land, having a predetermined length, is defined as the portion of the lumen disposed in the distal portion of the tube between the shoulder and the distal end. A needle is disposed in the lumen and has a substantially circular cross-section. A discontinuity is located on the needle at a predetermined position with respect to the needle tip. The distance between the distal edge of the discontinuity and the needle tip is substantially equal to the length of the catheter land. The discontinuity is sized such that it fits within the lumen at the proximal portion but does not fit within the lumen at the distal portion.

    摘要翻译： 针管导管组件包括由柔性生物相容性材料制成的管。 管具有近端部分，远侧部分和位于远离近端部分的远侧部分上的导管末端。 内腔从近端部分延伸通过管，与管基本上同轴地延伸穿过远端部分并且穿过导管尖端。 近端部分的管腔横截面大于远侧部分处的横截面。 肩部设置在远端部分和近侧部分之间的内腔中。 具有预定长度的导管平台被定义为设置在肩部和远端之间的管的远端部分中的内腔的部分。 针位于内腔中并具有大致圆形的横截面。 在相对于针尖的预定位置上的针上存在不连续性。 不连续的远侧边缘与针尖之间的距离基本上等于导管平台的长度。 不连续尺寸使得其适配在近端部分的内腔中但不配合在远端部分的内腔内。

    Protected needle catheter placement device having needle placement visualization features and method for its use
    18.
    发明授权
    Protected needle catheter placement device having needle placement visualization features and method for its use 失效
    保护针导管放置装置具有针位置可视化特征及其使用方法

    公开(公告)号：US5830190A

    公开(公告)日：1998-11-03

    申请号：US661685

    申请日：1996-06-11

    申请人： Glade Harold Howell

    发明人： Glade Harold Howell

    IPC分类号： A61M25/00 ,  A61M5/32 ,  A61M25/06 ,  A61M5/178

    CPC分类号： A61M25/0631 ,  A61M25/0693 ,  A61M25/0612 ,  A61M5/3232

    摘要： An over-the-needle catheter placement assembly includes an elongate catheter with an open bore therethrough. The catheter has a tapered distal end and a proximal end with a hub. The assembly includes an elongate hollow handle with a distal end that has an opening therethrough and a proximal end. Included in the assembly is an elongate needle with a sharp distal point, a proximal end and an open passageway therethrough. The assembly has a substantially transparent elongate needle hub with a distal end portion with the proximal end of the needle fixedly attached therein. The needle is coaxially slidably disposed within the catheter bore with the catheter hub mounted on the distal end portion of the needle hub so that the sharp distal pointed end of the needle projects beyond the tapered distal end of the catheter. The needle hub is slidably disposed for coaxial movement within the hollow handle between a first position where the distal end portion of the hub axially projects through the distal opening in said hollow handle so that the needle is distally outside the hollow handle and within the catheter bore and a proximal position to withdraw the needle into the handle. There is an elongate flashback chamber within the needle hub also that is fluidly connected to the proximal end of the needle and extends into the distal end portion of the needle hub.

    摘要翻译： 一针穿刺导管放置组件包括一个带有开孔的细长导管。 导管具有锥形远端和具有毂的近端。 组件包括细长的中空手柄，其具有远端，其具有穿过其中的开口和近端。 包括在组件中的是具有尖锐远端点，近端和通过其的开放通道的细长针。 组件具有基本上透明的细长针座，其具有远端部分，其针的近端固定地附接在其中。 所述针同轴地可滑动地设置在所述导管孔内，其中所述导管座安装在所述针座的远端部分上，使得所述针的尖锐的远端尖端突出超出所述导管的锥形远端。 所述针毂可滑动地设置成在所述中空手柄之间在第一位置和第二位置之间同轴运动，所述第一位置在所述毂的远端部分通过所述中空手柄中的远端开口轴向地突出，使得所述针远离所述中空手柄的外侧并且在所述导管孔内 以及近侧位置以将针抽出到手柄中。 在针座内还有一个细长的回流室，其还流体地连接到针的近端并且延伸到针毂的远端部分。