An efficient and stable biofilm suppression system for human intubation based on ultrasonic guided waves

Abstract

The invention discloses a body intubation tube pellicle inhibition system based on ultrasonic guided waves. The system comprises a main control system (1), a signal emission subsystem (2), an ultrasonic guided wave coupling subsystem (3), a body intubation tube (4) and a guided wave vibration feedback subsystem (5).The working principle is as follows: emitting multiple (or a single) burst electric signals to the signal emission subsystem (2), and applying to a plurality of ultrasonic transducers (31) arranged symmetrically in the axial direction (or a single ultrasonic transducer); efficiently coupling the ultrasonic signals to the body intubation tube (4) through the guided wave coupling subsystem (3); performing pellicle inhibition through mechanical vibration generated on the surface of the body intubation tube (4); and detecting the vibration amplitude on the surface of the body intubation tube (4) in real time through the guided wave vibration feedback subsystem (5), thereby realizing stable closed-loop control. According to the invention, the stable and controllable mechanical vibration effect can be generated on the surface of the body intubation tube (4), thereby inhibiting adhesion of bacteria on the surface of the body intubation tube (4), and reducing the clinical infection probability.

Description

technical field [0001] The invention belongs to the field of ultrasonic medical instruments and equipment, and relates to an ultrasonic non-invasive human biofilm suppression system, in particular to an ultrasonic non-invasive human body biofilm suppression system for indwelling endotracheal intubation tubes and urinary catheters. Background technique [0002] Human body intubation, such as urinary catheter, endotracheal intubation, etc., has been widely used in clinic. Unfortunately, intubation devices placed in the body for long periods of time often lead to bacterial infections, a major cause of morbidity and even death. There are two forms of bacteria in the natural growth state: free and biofilm. After the bacteria in the free state adhere to the surface of the intubation device, a biofilm with a complex structure in the form of a matrix will be formed. According to NIH statistics, more than 80% of bacterial infections are related to bacteria. Membrane-related, the maj...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an efficient and stable human body intubation 4 biofilm suppression system based on ultrasonic guided waves, which can solve the aforementioned problems such as short vibration transmission distance, multiple transmission modes, inability to accurately control vibration amplitude, poor safety, etc.

In order to improve the problem of being unable to control accurately, the present invention adopts the closed-loop control of "control-transmission-measurement-feedback-control" to achieve the set precise vibration amplitude requirements

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