Wireless fractional flow reserve measurement system

A blood flow reserve fraction and measurement system technology, applied in the field of wireless blood flow reserve fraction measurement system, can solve problems such as complex system structure and inconvenient operation, and achieve the goal of overcoming synchronization difficulties, simplifying operation difficulties, and improving accuracy and reliability Effect

Active Publication Date: 2017-01-04
上海爱声生物医疗科技有限公司
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  • Abstract
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The actual system structure is comp...

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Embodiment 1

[0042] combine figure 1 , the wireless blood flow reserve measurement system of the present invention is described in detail, and its structural diagram is as follows figure 1As shown, it includes: sensor unit 1, collection and emission unit 2 and processing terminal 3, sensor unit 1 includes: first pressure sensor unit 11 and second pressure sensor 12, first pressure sensor unit 11 includes: pressure guide wire 111 and The first pressure sensor 112, one end of the pressure guide wire 111 is connected to the acquisition and emission unit 2, the other end of the pressure guide wire 112 is provided with a first pressure sensor 112, the first pressure sensor 112 is wirelessly connected with the acquisition and emission unit 2, the first The pressure sensor 112 is used to measure the pressure Pd at the distal end of the lesion stenosis, and wirelessly transmit the measured pressure at the distal end of the lesion stenosis to the acquisition and emission unit 2; the second pressure...

Embodiment 2

[0052] This embodiment is on the basis of embodiment 1, has increased the electrocardiogram (ECG) interface on the collecting and emitting unit 2, is used for connecting the ECG signal of external equipment, and structural diagram is as follows image 3 As shown, the acquisition and transmission unit 2 sends the pressure at the distal end of the lesion stenosis, the aortic pressure, and the ECG signal to the processing terminal 3, so that the instantaneous Wave-free Ratio (iFR, instantaneous Wave-free Ratio) measurement of the non-maximal hyperemia state can be used. The FFR is obtained, ie the FFR value of the instantaneous pressure measured during the wave free period.

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Abstract

The invention discloses a wireless fractional flow reserve measurement system which comprises a sensor unit, an acquisition and transmission unit and a processing terminal, wherein the sensor unit comprises a first pressure sensor unit and a second pressure sensor; the first pressure sensor unit comprises a first pressure sensor and a pressure guide wire; one end of the pressure guide wire is connected with the acquisition and transmission unit; the first pressure sensor is arranged at the other end of the pressure guide wire; the first pressure sensor is wirelessly connected with the acquisition and transmission unit; the second pressure sensor is integrated on the acquisition and transmission unit or is connected to the acquisition and transmission unit; the processing terminal is connected with the acquisition and transmission unit, and used for receiving pressure data collected by the acquisition and transmission unit and processing the pressure data to obtain the fractional flow reserve. The wireless fractional flow reserve measurement system provided by the invention integrates the measurement of an aortic pressure and a distal pressure of diseased stenosis in the same acquisition and transmission unit, thereby greatly simplifying the conventional equipment volume and line connection and increasing the surgical operation space.

Description

technical field [0001] The invention relates to the field of blood flow reserve measurement field, in particular to a wireless blood flow reserve measurement system. Background technique [0002] In 1993, Professor Nico Pijls of the Netherlands proposed Fractional Flow Reserve (FFR), which is the maximum blood flow that can be obtained by the myocardial region supplied by the coronary artery and the maximum blood flow that the same region can theoretically obtain under normal conditions. The ratio of epicardial vessels is a specific index of epicardial vascular stenosis, and is not affected by factors such as heart rate, blood pressure and peripheral microcirculation. significance. [0003] Currently, the commonly used systems and methods for measuring FFR are: using an interventional catheter (guiding catheter) to measure the aortic pressure (Pa), and using an interventional guide wire (pressure guide wire) to measure the pressure (Pd) at the distal end of the lesion steno...

Claims

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Application Information

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IPC IPC(8): A61B5/026A61B5/0215A61B8/12A61B5/01
CPCA61B5/01A61B5/0215A61B5/026A61B5/6852A61B5/6876A61B8/12A61B8/488
Inventor 简小华徐杰崔崤峣袁建人李翔
Owner 上海爱声生物医疗科技有限公司
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