Title:
【発明の名称】中間ニードル及び供給液体間に平坦界面を形成する方法
Document Type and Number:
Japanese Patent JP2003500122
Kind Code:
A
Abstract:
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.
Inventors:
Douglas Earl Heyman
Ed Olsen
Noah M. Ross
Garry Curie
Tom Warren
Ed Olsen
Noah M. Ross
Garry Curie
Tom Warren
Application Number:
JP2000619497A
Publication Date:
January 07, 2003
Filing Date:
May 19, 2000
Export Citation:
Assignee:
Micro Therapeutics Incorporated
International Classes:
A61M25/00; A61M25/18; A61B17/12; A61M37/00; A61M39/00; A61M5/14; A61M5/32; (IPC1-7): A61M39/00; A61B17/12; A61M37/00
Attorney, Agent or Firm:
Masatake Shiga (7 outside)