Intravascular foresight detection device

Abstract

The invention provides an intravascular foresight detection device which comprises an intravascular foresight probe; the intravascular foresight probe comprises a shell, a CMUT ultrasonic sensor array, an acquisition control chip and a flexible shaft with a cable; the shell is of a hollow cylindrical structure; the CMUT ultrasonic sensor array and the acquisition control chip are embedded in the shell, the whole body is fixedly connected with the flexible shaft with the cable and moves back and forth along with the flexible shaft with the cable; the intravascular foresight detection device can perform forward imaging at the far end of a catheter head end, determine the deformation direction of a blood vessel cavity and the morphological structure of a lesion, improve the success rate of a CTO lesion operation, reduce occurrence of blood vessel perforation, interlayers and the like in the operation, shorten the operation time, reduce the X-ray radiation quantity, remarkably reduce the dosage of a contrast agent in the operation, and reduce the occurrence of contrast-induced nephropathy.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an intravascular forward-looking detection device. Background technique [0002] The success rate of surgery for chronic total occlusion (CTO) is low, and the success rate of surgery is only 48-76% in the early stage. Among the causes of surgical failure, the failure of the guide wire to pass through the occlusive lesion accounted for the vast majority (63-92%). Before blunt occlusive lesions, if there are no thicker branches and the current clinically used IVUS equipment cannot be used to provide assistance, in order to improve the success rate of the operation, the doctor uses a new type of guide with a harder head, better support and maneuverability. The guide wire is guided by a steel wire and a tapered tip, but it is difficult to judge whether the distal end of the guide wire is located in the true lumen through the resistance encountered by the guide wire and t...

AI Technical Summary

Problems solved by technology

The coronary artery rupture caused by the guide wire in PCI is the most common. One kind of situation is seen in the coronary artery rupture caused by the hard guide wire entering the false lumen. Delayed cardiac tamponade with serious consequences

At present, the special guide wires for CTO lesions (Conquest / Conquest pro series, Cross it series, etc.) have a very strong ability to pass through lesions, and it is difficult to judge whether the distal end of the guide wire is located in the true lumen according to the resistance encountered by the guide wire and the flexibility of the tip movement.

If the judgment is wrong, the balloon is misused to pass or dilate, which often causes severe coronary artery rupture

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