| 摘要 |
Disclosed is a catheter assembly, including: an external tube member inserted into a blood vessel; a first internal tube member inserted into the blood vessel through the external tube member; a first balloon portion provided at an end side of the first internal tube member; and a second balloon portion formed at any one of the external tube member and the first internal tube member, wherein when the first balloon portion and the second balloon portion are expanded, the first balloon portion and the second balloon portion block a blood flow within the blood vessel therebetween from the outside. According to the disclosure, a blood flow is blocked at the front and the rear of a location, at which coronary arteries stenosis disease is generated, so that it is possible to safely separate and/or decompose a thrombus and atherom by using ultrasonic waves, and collect the separated and decomposed residues. |
