In-vitro aorta counterpulsation device with pressure sensing and automatic regulating functions

Abstract

The invention provides an in-vitro aorta counterpulsation device with a pressure sensing and automatic regulating function. The device is composed of an automatic pressure regulating type counterpulsation balloon with an optical fiber pressure sensor, a counterpulsation pump and the like. The automatic pressure regulating type counterpulsation balloon comprises a power cavity, a blood containing cavity, an optical fiber pressure sensor, an aorta catheter, a left crown catheter, a left ventricular catheter, a balloon connecting pipe and the like. Wherein the power cavity is connected with the counterpulsation pump through a Y-shaped connecting port, the power cavity and the blood containing cavity form a gap through the elastic film, and the counterpulsation pressure is adjusted by adjusting the pumped pressure through the counterpulsation pump to influence the deformation quantity of the elastic film so as to adjust the counterpulsation pressure. The blood containing cavity is connected with the aorta catheter, the left crown catheter and the left ventricular catheter, optical fiber pressure sensors are buried in the catheter walls, and the functions of blood conveying, pressure sensing and signal transmission can be achieved. When the system works, the optical fiber pressure sensor collects coronary artery and / or left ventricle blood pressure data in real time and transmits the data to the counterpulsation pump. The counterpulsation pump dynamically adjusts the pump-out pressure according to the obtained coronary artery / left ventricle data and transmits the pressure to the blood containing cavity through the power cavity, and automatic regulation and control of the counterpulsation pressure are achieved. The device is an important improvement of a traditional counterpulsation device, wherein the counterpulsation balloon does not need to be implanted into a body; counterpulsation pressure dynamic regulation and control within a certain range are achieved, and a larger operation space is provided for clinic; coronary artery / ventricular blood pressure data are monitored in real time, a basis can be provided for clinical diagnosis and treatment, and the safety and effectiveness of counterpulsation treatment are improved.

Description

technical field [0001] The invention relates to an extracorporeal aortic anti-pulse device with the function of pressure sensing and automatic regulation, and relates to the technical field of interventional therapy. Background technique [0002] With the progress of society and the continuous improvement of people's economic and health conditions, cardiovascular diseases such as coronary heart disease have become the primary diseases affecting the life and health of Chinese people. Intra aortic balloon pump (IABP) was first used clinically in 1968, and has been widely used in circulatory support for high-risk coronary intervention subjects. [0003] The aortic balloon counterpulsation device includes a balloon catheter and a counterpulsation machine as a driving part of the balloon catheter. The balloon catheter is composed of a cylindrical balloon fixed on the catheter and an air supply catheter. The selection criteria for the balloon catheter is that after the balloon is...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above problems, the present invention provides an in vitro aortic counterpulsation device with the function of pressure sensing and automatic regulation, so as to achieve the following functions: the device has a longer aortic catheter, and its counterpulsation balloon can be placed outside the body, which solves the problem of The problem of easy implantation; the left ventricle and left coronary pressure can be monitored in real time through the optical fiber pressure sensor to effectively control the inflation and deflation of the balloon; the use of the elastic membrane can solve the problem of blood flow control; It can store and pump blood, which solves the problem that the traditional aortic counterpulsation balloon catheter can only inflate and deflate the blood in the aorta through its own balloon and the cardiac cycle correspondingly, and cannot actively affect the blood. Propulsion and increased perfusion volume; the structure of the device is simple and easy to implement, the balloon and other components are placed outside the body, and there are fewer materials placed in the body, reducing the chance of infection

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