The invention provides an intravascular occluder which comprises an occluder body, a
catheter part and a control mechanism, the occluder body is of an umbrella-shaped structure formed by a plurality of frameworks which can be opened, and a layer of covering is attached to the occluder body; the
catheter part is used for accommodating the plugging device and the connecting rod part of the control mechanism; the control mechanism comprises a connecting rod part and a
handle control part, and is used for controlling the pushing and withdrawing of the plugging device; after the plugging device is unfolded to completely plug the inner
diameter of the
blood vessel, the function of
cutting off blood flowing can be achieved, a space for blood flowing can be reserved at the position close to the inner wall of the
blood vessel by properly retracting the plugging device into the
catheter, and the plugging device can be completely retracted into the catheter by completely retracting the plugging device. The device has the advantages that unfolding and folding are completely reversible, controllable opening and
cutting of
blood flow can be achieved, complications caused by long-time
ischemia of blocked blood vessels can be avoided, and a long-time operation becomes possible.