A sensor measures blood flow in collateral arteries of the heart

Abstract

The invention discloses a sensor capable of measuring the flow rate of the collateral blood vessels of the cardiac artery, which comprises a controlled and coordinated heating part and a sensing part. When in use, the heating part covers the surface of the cardiac aortic blood vessel. Distributed on the surface of the collateral blood vessels, the heating part heats the blood passing through the cardiac aortic vessels, and the temperature change generated when the heated blood flows through the cardiac artery collateral vessels is detected by the sensing unit array of the sensing part Information, based on the temperature change information to realize the measurement of the blood flow of the collateral blood vessels of the cardiac artery. The sensor of the present invention can be implanted into the human body, and can continuously detect the state of the collateral vessels of the cardiac artery for a long time. By simultaneously measuring variables such as temperature, pressure, and blood flow, it can effectively solve the problem of monitoring the blood circulation state of the arterial vessel after heart bypass surgery, and provide health benefits for patients. Provide a valid basis.

Description

Technical field[0001]The present invention relates to a sensor that measures the flow of cardiac artery bypass.Background technique[0002]The implanted equipment has been developed through six or seventy years, and has been widely used in human health testing. The main applied equipment is the originats, artificial bones, and a series of medical auxiliary equipment. Implantable equipment is usually affected by factors such as volume, power consumption, data transmission, and these factors can be avoided by developing MEMS technology-based devices. In recent years, MEMS-based implanted equipment has achieved great development, and MEMS can be implanted in the United States. With the development of electronic technology, materials science, processing equipment, MEMS technology is ushered in its outbreak period, and we believe that MEMS-based implantable equipment is the mainstream development direction of future medical care.[0003]Blood flow is a basic element of the human body, which ...

AI Technical Summary

Problems solved by technology

Faced with this problem, the existing solution is usually to use ultrasonic Doppler technology to detect blood flow velocity. This technology has the following problems: First, ultrasonic Doppler technology is affected by the incident angle of microwaves, and the impact is very large. In actual measurement, the relative movement between the device probe and the arterial blood vessel usually causes a huge error in the detection result. At this time, an experienced doctor is usually required to avoid the wrong measurement result, which greatly limits the effectiveness of the device; secondly, the ultrasonic device is usually huge , it is very inconvenient to use, and can only be used during the operation, and after the operation, the dangerous period after the human body is sutured cannot be effectively monitored; in this case, an implantable human body that can be continuously monitored for a long time , it is very necessary to measure the blood flow of heart arteries effectively after bypass surgery.

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