3 results about "Ultrasonic doppler" patented technology

The application discloses a kind of based on flexible ultrasonic Doppler and AI blood vessel tracking blood flow noninvasive monitoring device, belong to intelligent medical monitoring field.The device includes: flexible ultrasonic Doppler sensor, for attaching body surface signal acquisition;Processing unit and the artificial intelligence analysis module in it, for automatic identification tracking blood vessel and calculate its cross-sectional area and blood flow velocity, and then obtain real-time blood flow;And optional pressure adaptive stabilization module, for dynamic adjustment of adhering pressure according to signal quality to maintain monitoring stability.The application realizes the continuous, noninvasive, automatic monitoring of arterial blood flow, with the advantages of high precision, strong anti-interference, convenient for clinical integration, suitable for perioperative period and critical patient hemodynamic management.

This invention relates to the field of medical device technology and discloses a multi-dimensional biomimetic experimental device for whole-body vascular interventional shunt stents, comprising a mobile platform and a multi-dimensional detection matrix: a stent plate is fixedly connected to one side of the mobile platform, a stent rod is fixedly connected to the outside of the stent plate, a main trunk segment is provided inside the stent rod, and multiple lateral trunk segments are provided outside the main trunk segment; a reservoir, a peristaltic pump, and a pressure control valve are fixedly connected to the outside of the stent plate; a disassembly component one is provided at one end of the main trunk segment, and a disassembly component two is provided at one end of each lateral trunk segment or branch segment; the multi-dimensional detection matrix includes a miniature pressure sensor, an ultrasonic Doppler blood flow velocity measurement module, and a particle image velocity measurement system. Through the main trunk segment, lateral trunk segment, and branch segment, combined with the rapid sealing and snapping of modular disassembly components one and two, high-precision biomimetic simulation of the vascular bed in different parts of the human body is achieved.

This invention discloses a method, apparatus, and electronic device for cleaning foreign objects from an ultrasonic Doppler flowmeter. The method includes: acquiring the echo signal from an ultrasonic transducer to obtain a first characteristic parameter and multiple second characteristic parameters reflecting the degree of foreign object adhesion; comparing the first characteristic parameter with a preset multi-level threshold range to determine the threshold level corresponding to the first characteristic parameter; and, based on the threshold level corresponding to the first characteristic parameter, and if at least one second characteristic parameter is within the threshold range corresponding to that threshold level, then the cleaning mechanism performs a corresponding cleaning action. This invention determines the degree of foreign object adhesion through multi-level threshold grading and generates matching cleaning instructions based on the threshold levels, achieving graded automatic cleaning of foreign objects. This avoids blind cleaning or insufficient cleaning, improves cleaning efficiency, and reduces energy consumption, making it particularly suitable for flow monitoring in unattended scenarios such as drainage pipe networks.