Patent ID: 8206356
Filing Date: 2012-06-26
Classification: A61M

Abstract:
1. A reagent injection apparatus comprising: a main tube having flexibility, providing a needlelike tubular body lumen in an axial direction, and inserted into the patient's body; a needlelike tubular body made of a flexible thin tube through which specified reagent can flow, the needlelike tubular body inserted into the needlelike tubular body lumen of the main tube in a movable manner and its tip section projected outward from a projection hole provided in the main tube to puncture specified tissue in the patient's body, in order to inject the reagent into the body tissue; a first guide wire lumen extending in the axial direction in the main tube for receiving a first guide wire in a movable manner, and having a distal opening distal to the projection hole and a proximal opening proximal to the projection hole, at least the proximal opening being on a side of the main tube; a second guide wire lumen extending in the axial direction in the main tube for receiving a second guide wire in a movable manner, having proximal and distal openings, each of the proximal and distal openings of the second guide wire lumen being proximal to the projection hole, the proximal opening of the second guide wire lumen being opened in a side surface of the main tube, and the proximal opening of the first guide wire lumen being positioned between the proximal and distal openings of the second guide wire lumen; and a support tube having flexibility and having a tip section provided as a free end, the support tube provided in a manner branching from the main tube, and having a continuous lumen that continues to the second guide wire lumen through the distal opening of the second guide wire lumen, which is closer to the projection hole, wherein a part of the second guide wire extending from the distal opening of the second guide wire lumen, which is closer to the projection hole, is inserted into the continuous lumen in a movable manner.