公开(公告)号：US06511472B1

公开(公告)日：2003-01-28

申请号：US09574392

申请日：2000-05-19

申请人： Douglas R. Hayman ,  Ed Olsen ,  Noah M. Roth ,  Gary Curri ,  Thomas J. Whalen, II

发明人： Douglas R. Hayman ,  Ed Olsen ,  Noah M. Roth ,  Gary Curri ,  Thomas J. Whalen, II

IPC分类号： A61M3900

CPC分类号： A61M25/0097 ,  A61M5/1407 ,  A61M2005/3201

摘要： An interface needle is used for connecting a syringe to a catheter to create a blunt interface between two or more liquids being delivered through the catheter. The interface needle is particularly useful for creating a blunt interface between a biocompatible solvent and a liquid embolic composition which is delivered to the body for treatment of various conditions including aneurysms. A system for liquid delivery with a blunt liquid interface includes a catheter or other cannula, an interface needle, and a syringe. The interface needle includes a tube extending from a distal end which delivers liquid to a lumen of the catheter bypassing a reservoir in the catheter hub to create the blunt liquid interface. One embodiment of the interface needle controls an injection pressure of high viscosity liquids.

摘要翻译： 接口针用于将注射器连接到导管，以在通过导管输送的两种或多种液体之间形成钝的界面。 界面针对于在生物相容性溶剂和液体栓塞组合物之间形成钝性界面特别有用，该组合物被输送到身体以治疗包括动脉瘤的各种状况。 用于具有钝液界面的液体递送系统包括导管或其它插管，接口针和注射器。 接口针包括从远端延伸的管，其将液体输送到绕过导管座中的储存器的导管的内腔，以产生钝的液体界面。 接口针的一个实施例控制高粘度液体的注射压力。