| 摘要 |
A mechanically rotating intravascular ultrasound probe relates to the technical field of medical devices, and aims to provide a forward-looking mechanically rotating intravascular ultrasound probe having a small volume, a high image resolution and good imaging stability. The intravascular ultrasound probe includes a catheter (1), an ultrasonic transducer (4) disposed at a front end of a cavity of the catheter (1) and a driving apparatus that drives the ultrasonic transducer (4) to rotate mechanically. The driving apparatus is a micro motor (3) disposed in the cavity of the catheter (1), including a rotor (31) and a stator (32). The ultrasonic transducer (4) is installed on top of the rotor (31) and electrically connected to the rotor (31), and the rotor (31) is also electrically connected to the stator (32); the catheter (1) is a magnetic metal tube, and a front end thereof is enclosed by an acoustic window (2) which has a spherical tip and allows ultrasonic waves of the ultrasonic transducer (4) to pass through; the acoustic window (2) is filled with an ionic liquid having a function of a ultrasonic coupling agent. The ultrasound probe solves a problem of rotation torsion of an image when the catheter (1) passes through a lesion with high-grade stenosis or a curved blood vessel section, and achieves forward scanning imaging and side scanning imaging for a blood vessel wall. |
