Thrombus aspiration system of double-balloon ultrasonic catheter and application of thrombus aspiration system

Abstract

The invention relates to the technical field of medical instruments, in particular to a thrombus aspiration system of a double-balloon ultrasonic catheter and application of the thrombus aspiration system. The thrombus aspiration system comprises a balloon catheter, a far-end balloon and a near-end balloon, and the balloon catheter penetrates through the far-end balloon and the near-end balloon; and an ultrasonic energy electrode is arranged on the balloon catheter. An energy electrode generating electrode of the ultrasonic catheter is arranged between the two balloons, one balloon is placed at the far end of the calcification lesion or thrombus, and the other balloon is placed at the near end of the calcification lesion or thrombus; and after the two balloons are filled, the calcification lesion or thrombus is in a closed state, and a calcification area is removed. The ultrasonic energy electrode is arranged on the balloon catheter, so that the ultrasonic energy electrode can be used for directly driving liquid vibration to directly act on the inner wall of a blood vessel without attenuation of the balloon wall; and a flushing opening and a suction opening are formed in the catheter in the middle of the two balloons, and calcification lesions or thrombus can be removed through ultrasonic energy and medicine flushing and suction at the same time.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, the invention relates to a double-balloon ultrasonic catheter thrombus aspiration system and its application. Background technique [0002] Shock waves are most widely used in medical treatment for urinary system lithotripsy, that is, shock waves of specific power act on stones in the urinary system outside the body. The detonation action of the shock wave breaks the stone without causing damage to the surrounding soft tissue. Shockwave's research and development engineers creatively applied extracorporeal shock wave therapy for urinary calculi to the vascular cavity for severe vascular calcification treatment, and developed the Shockwave Shock Wave Balloon Catheter. [0003] The Shockwave Shockwave Balloon Catheter ruptures calcified lesions through the local field strength generated by the shockwave detonation. The effect can be as deep as medial calcification. ...

AI Technical Summary

Problems solved by technology

[0004] At present, Shockwave shock wave balloon catheters mainly have the following problems: 1. Calcified plaque fragments are easy to fall off, and drift with the blood flow to cause embolism of distal blood vessels; 2. Ultrasonic energy is attenuated by passing through the polymer material of the balloon wall Relatively strong, its strength is not as strong as liquid directly acting on calcified lesions, which limits the application of balloon catheters

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