Conduit emulator for testing ffr host systems
A host system and simulator technology, applied in catheters, cardiac catheters, etc., can solve the problems of pressure measurement catheter wear, unreliable test results, pressure fluctuations of hydraulic signal sources, etc., to reduce difficulty, improve reliability, and reduce losses Effect
Active Publication Date: 2021-08-10
SHENZHEN INSIGHT MED CO LTD
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Problems solved by technology
However, in this existing test method, the stability requirements for the hydraulic signal source are very high, and the hydraulic signal source is easily affected by external vibrations to cause pressure fluctuations, making the test results unreliable, and the actual pressure needs to be used in the test process Measuring conduits, causing wear on pressure measuring conduits
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[0029] All references cited in this disclosure are incorporated by reference in their entirety as if fully set forth. Unless defined otherwise, technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
[0030] A general guide to many of the terms used in this application is provided to those skilled in the art. Those skilled in the art will recognize many methods and materials similar or equivalent to those described in the present disclosure, which could be used in the practice of the present disclosure. Indeed, the present disclosure is in no way limited to the methods and materials described.
[0031] figure 1 is a schematic diagram showing the application of the catheter simulator according to the embodiment of the present disclosure. figure 2 is a block diagram showing a catheter simulator according to an embodiment of the present disclosure.
[0032]The c...
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The present disclosure relates to a catheter simulator for testing an FFR host system, which includes: a generation module, which generates a blood pressure cycle signal based on human blood pressure characteristics and an excitation voltage generated by the FFR host system; a processing module, which is used to analyze the blood pressure cycle The signal is processed to generate a blood pressure differential signal; an adjustment module is used to adjust the amplitude of the blood pressure differential signal to generate a low-amplitude differential signal; and a matching module is used to output the low-amplitude differential signal as a host system A matched matched differential signal, wherein the FFR host system generates a Fractional Flow Reserve (FFR) based on the matched differential signal. According to the present disclosure, it is possible to effectively reduce the hydraulic signal source from being easily affected by external vibrations, improve the reliability of the test, and the operation of generating the blood pressure cycle signal is simple, and the difficulty of building a test platform is reduced, and the catheter simulator is used instead of the pressure measurement catheter, and the pressure measurement catheter is also used. The loss to the pressure measurement catheter can be reduced, and the cost of testing can be reduced.
Description
technical field [0001] The present disclosure relates to a catheter simulator for testing FFR host systems. Background technique [0002] In many cardiovascular diseases such as coronary heart disease, narrowing of blood vessels (eg, caused by vascular plaques) will affect the normal supply of blood. When the blood vessels are further narrowed or even blocked, it may cause serious diseases such as myocardial infarction. Percutaneous coronary intervention (PCI) is currently a relatively effective treatment. [0003] In recent years, in order to accurately judge whether a patient really needs interventional therapy, Fractional Flow Reverse (FFR for short), which is used to evaluate the degree to which stenotic lesions block blood flow through blood vessels, has been more and more used and popularized. FFR refers to the ratio of the maximum blood flow that can be obtained by the myocardial region supplied by the coronary artery to the maximum blood flow that can be obtained by...
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IPC IPC(8): A61B5/0215
CPCA61B5/02156A61B5/02158
Inventor 刘杨波熊双涛郑欲晓
Owner SHENZHEN INSIGHT MED CO LTD