The invention discloses a
thrombus aspiration catheter, and belongs to the technical field of
medical instruments. The invention provides the
thrombus aspiration catheter. The
thrombus aspiration catheter comprises a
catheter body, a
balloon, a first Y-shaped valve and a second Y-shaped valve, the
catheter body comprises an outer
catheter and an inner catheter located inside the outer catheter, ahead end of the inner catheter is attached to a head end of the outer catheter, a gap is reserved between the other parts of the inner catheter and the outer catheter except the head ends, a pluralityof suction holes are formed in the attached portion of the inner catheter and the outer catheter, a part of a
tail end of the inner catheter extends out of a
tail end of the outer catheter, the
balloon is arranged on the outer catheter in a sleeving mode, a plurality of
liquid injection holes are formed in the portion, located inside the
balloon, of the outer catheter, a first
main branch of thefirst Y-shaped valve communicates with the outer catheter, and a second
main branch of the second Y-shaped valve communicates with the inner catheter. According to the
thrombus aspiration catheter, the structure is simple, when the
thrombus aspiration catheter is used for aspirating thrombus, only the first Y-shaped valve needs to be used for injecting liquid into the balloon, then the second Y-shaped valve is used for aspirating the thrombus, and the operation is convenient.