CHEMICAL INJECTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a chemical injecting apparatus which can be easily inserted in a body and which can exactly secure a blood flow when inserted intravascularly.

SOLUTION: This chemical injecting apparatus makes a needle-like tube 12 having a sharp tip axially movably inserted into any one lumen 18c of three or more lumens 18a-18d provided in a tubular body 10 insertable in the body. A protrusion apertures 22 to which the needle-like tube 12 can be protruded are provided in such a tubular body 10. Further, the chemical injecting apparatus includes a chemical supply means for supplying a predetermined chemical into the needle-like tube 12. In this chemical injecting apparatus, axially extending recesses 54, 56 and 58 are formed on the outer peripheral surface of the tubular body 10 so that the sectional shape perpendicular to the axial direction of the tubular body 10 becomes a shape recessed radially inward at least at the part of the outer periphery of the circular shape.

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