A blood flow simulation system and simulation method in ultrasound Doppler operation

Abstract

The invention provides a blood flow simulation system and a simulation method thereof in ultrasonic Doppler surgery. The system includes a control system and a fluid circuit system. The control system includes a liquid crystal touch screen, a single-chip microcomputer control board, a drive board and a peristaltic pump. , single-chip microcomputer control board, drive board and peristaltic pump are connected in sequence, and the fluid system includes a constant current running path and a pulsating running path. The imitation blood vessel of the present invention can be conveniently used in superficial and intraoperative ultrasonic Doppler ultrasonic blood vessel detectors The inspection and calibration can simulate the exposed blood vessels in the operation; at the same time, four kinds of blood vessels with different diameters can meet the testing needs of the intraoperative ultrasonic probes of different specifications to the greatest extent; in addition, the present invention directly inputs the flow rate through the LCD touch screen , easy to operate; finally, the present invention has two pathways, the imitation blood passes through the buffer in the constant flow mode, and the imitation blood directly reaches the imitation blood vessel in the pulse mode without passing through the buffer.

Description

technical field [0001] The invention relates to a blood flow simulation system and a simulation method in ultrasonic Doppler operation. Background technique [0002] Ultrasound Doppler technology is currently widely used in clinical medical examinations, such as color Doppler ultrasound, transcranial Doppler blood flow analyzer, fetal monitor, intraoperative ultrasound Doppler blood flow detector and other products are based on the principle of ultrasound Doppler Working detection equipment. The instruments used to test and calibrate these ultrasonic Doppler detection equipment are called Doppler specimens or phantoms. YY / T0705-2008 Ultrasonic continuous wave Doppler system experimental method mentioned a variety of Doppler specimens or phantoms, including string type, piston type, blood flow type, etc. The ultrasonic Doppler blood flow simulation system of the present invention is also a Doppler phantom, which belongs to the blood flow Doppler phantom. The blood flow Dop...

AI Technical Summary

Problems solved by technology

In the existing blood flow Doppler phantom, the imitated blood vessels are embedded in the imitated tissue material. The current Doppler imitated blood flow systems include split type and integrated type, but none of them can meet the requirements of intraoperative ultrasound Doppler. The probe directly contacts or covers the exposed blood vessel. The simulated blood vessel is buried in the ultrasonic tissue imitation material (TMM), which cannot be touched during detection. It is difficult for the ultrasonic probe to touch the simulated blood vessel, so it cannot be used for superficial and intraoperative Inspection and Calibration of Ultrasonic Doppler Ultrasonic Blood Flow Detector

In addition, the imitated blood of the existing blood flow Doppler phantom must pass through the buffer, and the pulse signal imitating the pulse will be weakened

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