High-voltage pulse output device and shock wave balloon catheter system using same

Abstract

The invention relates to a high-voltage pulse output device and a shock wave balloon catheter system. The shock wave balloon catheter system is composed of the high-voltage pulse output device and a shock wave balloon catheter; the high-voltage pulse output device comprises a man-machine interaction module, a control module, a power supply module, and a filtering energy storage module, a full-bridge conversion boost module, a rectification filtering module, a sampling module and a high-voltage pulse output module which are in circuit connection in sequence; the shock wave balloon catheter comprises a long and thin component extending in the axial direction, a working balloon body, an electric field generating mechanism arranged in the working balloon body and a micropore-induced shock wave generating device wrapping the electric field generating mechanism; the electric field generating mechanism is electrically connected with the high-voltage pulse output module through a wire; a micropore mechanism penetrating through the wall of the micropore-induced shock wave generating device is arranged on the micropore-induced shock wave generating device; and the micropore mechanism can prevent liquid from entering through the surface tension of the micropore mechanism, so that the micropore-induced shock wave generating device can isolate the electric field generating mechanism from the liquid flowing into the working balloon body.

Description

technical field [0001] The application belongs to the field of minimally invasive interventional therapy, and in particular relates to a shock wave balloon catheter system applied to the treatment of calcified lesion blood vessels. The system uses a novel high-voltage pulse output device. Background technique [0002] With the aging of the population and the improvement of living standards, the incidence of vascular diseases is increasing year by year. As the blood vessel condition progresses, plaque in the blood vessel walls evolves into calcium deposits, which narrow the arteries and restrict blood flow. When a vessel is calcified, the main existing routines are balloon dilation, stent implantation, or atherectomy of the plaque with an atherectomy balloon. However, these treatments have significant drawbacks and are often accompanied by vascular damage and complications. Intimal tearing occurs during balloon dilation and stent implantation, which often results in endothe...

AI Technical Summary

Problems solved by technology

However, this kind of electronic equipment is mostly monopolized by developed countries, the purchase channel is single, the price is expensive, and it is difficult to use in China

In addition, there is still a problem in the existing technology that the electric field is directly applied inside the liquid, which requires high electric field strength and large current output to generate shock waves with sufficient intensity.

Once the balloon is damaged and leaks, high voltage and strong current will pass through the human body, which will cause serious electric shock accidents and even endanger the lives of patients and medical staff

In addition, high voltage and high current output will also cause excessive electrothermal conversion and energy release, which puts more stringent requirements on the design of catheters

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