Intravenous ultrasound-based ultrasonic diagnosis and photoacoustic therapy device and therapeutic method thereof

Abstract

The invention provides an intravenous ultrasound-based ultrasonic diagnosis and photoacoustic therapy device and a therapeutic method thereof. The device comprises an interventional catheter, wherein a high-frequency ultrasonic transducer, a built-in optical fiber bundle and an automatic retraction device are arranged inside the interventional catheter; the automatic retraction device drives the transducer to rotate and move forward and backward through a guide wire which is arranged inside the interventional catheter; and a tunable pulsed laser for providing a laser source for photoacoustic therapy, a collection control card for detected data of the transducer and a computer with digital signal / image processing functions are arranged outside the interventional catheter. Based on the combination of intravenous ultrasound imaging and photoacoustic therapy technique, the device achieves synchronization of vascular ultrasound imaging and timely treatment of cardiovascular diseases and can ablate thrombi and break down plaques, so as to dredge blood vessels. With the device, doctors can grasp patient's conditions and carry out the treatment during interventional operations, the operation cost and treatment risk are reduced, and people are benefited.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic imaging diagnosis and treatment, in particular to an intravascular ultrasonic diagnosis and photoacoustic treatment device and a treatment method thereof. [0002] Background technique [0003] Intravascular ultrasound (intravenous ultrasound, IVUS) is a new diagnostic method that combines non-invasive ultrasound technology and invasive catheter technology. It uses a catheter to introduce a high-frequency micro-ultrasound probe into the blood vessel cavity for detection, and then displays the microstructure information of the cardiovascular tissue structure and geometric form through a digital imaging system. Because the ultrasound probe is directly placed in the blood vessel cavity for detection, intravascular ultrasound can not only accurately measure the size of the lumen and atheromatous plaque or fibrous plaque, but also provide the general tissue information of the atheromatous plaque. ...

AI Technical Summary

Problems solved by technology

However, the intravascular ultrasound imagers currently on the market, whether they use a mechanical rotating probe, such as the iLab intravascular ultrasound imager produced by Boston Scientific, or an electronic phased array probe such as the S5 series intravascular ultrasound imager produced by Volcano , are only using ultrasound reflection imaging to measure the size of the vascular lumen, the size of atheroma or fibrous plaque, and some tissue information, etc., and then diagnose the disease and determine the treatment plan, etc., but cannot directly carry out effective treatments, such as thrombus ablation, coagulation, etc. Block emulsification, plaque breaking, etc.

If treatment is needed, it is generally necessary to place stents and inject thrombolytic agents according to the condition of the blood vessels obtained by IVUS. Not only the procedures are complicated, but the medical price is also very expensive.

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