Tomography system inside blood vessel

Abstract

The invention discloses a tomography system inside a blood vessel. The tomography system comprises an imaging catheter, an optical fiber movement controller, a tomography module, a data collecting module and a data processing and displaying module which are connected in sequence. The light emitted by the tomography module is transmitted to the imaging catheter through the optical fiber movement controller, the light is concentrated on a target blood vessel wall through the imaging catheter, and the optical fiber movement controller drives the imaging catheter to conduct rectilinear motion inside a target blood vessel at the same time of rotating at a high speed. The reflected light of different layers of the target blood vessel wall is collected and transmitted to the optical fiber movement controller and the tomography module in sequence by the imaging catheter, the tomography module demodulates the received reflected light into intensity information and then converts the intensity information into electrical signals, the data collecting module collects and transmits the electrical signals to the data processing and displaying module, and the data processing and displaying module processes, generates and displays cross-section image information of the blood vessel. By means of the tomography system inside the blood vessel, the high-speed tomography of the blood vessel can be achieved.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an intravascular tomographic imaging system. Background technique [0002] Interventional cardiologists combine multiple diagnostic tools during vascular procedures to plan, guide, and evaluate treatment. These tools typically include optical coherence tomography (OCT), intravascular ultrasound (IVUS), fractional flow reserve (FFR), and angiography. Intravascular OCT, IVUS, and FFR are invasive catheter-based systems that collect optical, ultrasound, and pressure data, respectively, from inside a blood vessel or on a sample of interest. In an optical coherence tomography image diagnosis device, an optical probe unit is usually installed on the image diagnosis device. The optical probe unit is equipped with an optical lens and an optical prism. The instrument / pull back the device part to rotate the contrast core, while emitting measurement light from the sending and ...

AI Technical Summary

Problems solved by technology

Although this device effectively reduces the jitter and deflection caused by the rotation of the rotor and improves the stability of the rotating shaft, when high-speed rotation is required, the noise of the motor used to provide the rotational speed is very loud, which affects the transmission of signals

Because the rotating speed of the light beam is required to be very high in the device of vascular tomography, and because the patient's tolerance to ischemia is different, the shorter the ischemia time is required, the better, that is, the faster the rotation speed, the better, while the traditional transmission The mechanism (synchronous pulley or gear) is very noisy at high speed, and the requirements for installation are extremely strict, and it is difficult to achieve the requirements of high-speed operation

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