Patent ID: 7381200
Filing Date: 2008-06-03
Classification: A61M

Abstract:
1. An infusion device comprising: a tubular member, made of a tube member that can be inserted into a body, in which at least three lumens are provided; a needle-shaped tube member, made of a thin tube, which is inserted into one of the three lumens inside the tubular member such that the needle-shaped tube member can be moved axially, and its tip is extruded outside through an extrusion aperture provided in the tubular member so as to infuse a reagent; and a recessed portion formed in an outer circumferential surface of the tubular member and extending in an axial direction thereof, such that a cross sectional shape of the tubular member perpendicular to the axial direction is a shape in which at least a portion of the outer circumference of an annular cross section has been recessed radially inward, wherein the three lumens include: a needle-shaped tube member lumen into which the needle-shaped tube member is inserted; a first guide wire lumen into which a first guide wire, that is extended from a tip of the tubular member, is inserted in such a manner that the first guide wire can be moved in the axial direction of the tubular member; and a second guide wire lumen into which a second guide wire is inserted, wherein the second guide wire is extended from the tubular member in a direction away from the first guide wire, wherein a plane that includes a central axis of the first guide wire lumen and a central axis of the second guide wire lumen is disposed such that it is perpendicular to the direction in which the extrusion aperture is formed.