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Crosstalk cancellation apparatus and method based on FFR measurement

A crosstalk elimination and pressure signal technology, applied in blood flow measurement, diagnostic recording/measurement, medical science, etc., can solve the problem of inaccurate sampling value of blood pressure signal, achieve the effect of improving signal sampling accuracy and signal-to-noise ratio

Inactive Publication Date: 2019-01-08
SHENZHEN INSIGHT MED CO LTD
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Problems solved by technology

[0005] However, the blood pressure signal collected by the above-mentioned existing FFR measurement device often needs to charge the capacitive device during the sampling process. During the period when the capacitive device is not charged and discharged, it may happen that the sampling of one blood pressure signal is not completed and another blood pressure is sampled. Signal situation, resulting in inaccurate sampling value of blood pressure signal

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  • Crosstalk cancellation apparatus and method based on FFR measurement
  • Crosstalk cancellation apparatus and method based on FFR measurement
  • Crosstalk cancellation apparatus and method based on FFR measurement

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Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.

[0026] In addition, the subheadings and the like involved in the following description of the present invention are not intended to limit the content or scope of the present invention, but are only used as reminders for reading. Such subtitles can neither be understood as used to divide the content of the article, nor should the content under the subtitle be limited to the scope of the subtitle.

[0027] The present disclosure relates to a crosstalk cancellation device (sometimes may be simply referred to as "crosstalk cancellation device") 1 b...

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Abstract

The invention discloses a crosstalk cancellation device based on FFR measurement. The device comprises components of an input module which receives a first pressure signal and a second pressure signalfrom different positions of a blood vessel; a follower that receives the first pressure signal and the second pressure signal and follows the first pressure signal and the second pressure signal andoutputs the first follow signal and the second follow signal, respectively; a selection module that selects a first follow signal or a second follow signal output from the follower and outputs the selected follow signal as a target pressure signal based on the follower; and an analog-to-digital conversion module that samples the target pressure signal. According to the invention, the signal-to-noise ratio of the signal can be improved, and the sampling accuracy of the sampling signal can be improved.

Description

technical field [0001] The invention relates to a crosstalk elimination device and method based on FFR measurement. Background technique [0002] Percutaneous coronary intervention is an effective treatment for cardiovascular disease. Before performing interventional treatment, it is often necessary to diagnose whether the patient needs interventional treatment. The traditional way of diagnosis is that doctors use coronary angiography to visually observe the degree of stenosis of coronary vessels, but this way of diagnosis cannot help doctors make accurate judgments. In order to more accurately judge whether a patient really needs interventional treatment, Fractional Flow Reserve (FFR) is increasingly used and promoted. [0003] Fractional flow reserve (FFR) is used to assess the extent to which stenotic lesions are blocking blood flow through vessels. To calculate the FFR for a given stenosis, two blood pressure readings are taken, one from the distal side of the stenosi...

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Application Information

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IPC IPC(8): A61B5/026A61B5/00
CPCA61B5/02007A61B5/026A61B5/7203A61B5/7225A61B5/725A61B2562/0247
Inventor 刘杨波熊双涛宋亮
Owner SHENZHEN INSIGHT MED CO LTD
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