Ultrasonic device combining imaging and multi-point focusing emission transdermal drug delivery and control method

Abstract

The invention discloses an ultrasonic device combining imaging and multi-point focusing emission transdermal drug delivery. The device comprises an ultrasonic host and an ultrasonic transducer array integrating imaging and treatment functions, wherein the ultrasonic transducer array is used for converting electric signals into sound signals and converting the sound signals into electric signals, and can emit different ultrasonic fields and generating different receiving effects according to different signal waveforms, amplitudes and phases, the ultrasonic host is used for driving the ultrasonic transducer array to complete emission and receiving required by imaging and emission required by transdermal drug delivery so as to realize ultrasonic multi-point focusing emission, and a graduallydeepened ultrasonic focusing channel is formed. According to the control method, multi-point focusing emission is adopted, a continuous strong sound field in the vertical depth direction can be formedon a transdermal drug delivery path, and therefore continuous pushing force is provided for drug particles, the drug particles can reach a deeper focus under the skin, and drug permeation can be better carried out.

Description

technical field [0001] The invention relates to an ultrasonic device combined with imaging and multi-point focused emission for transdermal drug delivery and a control method, belonging to the technical field of medical devices. Background technique [0002] Ultrasound is a mechanical vibration with a vibration frequency exceeding 20,000 Hz, which is generally generated by an ultrasonic transducer and can propagate in solids, liquids, and gases. Ultrasound with a certain power can be used in medical treatment, transdermal drug delivery, physical therapy and beauty treatment, etc. In order to achieve more convenient control and more powerful functions, several ultrasonic transducers are generally combined into an array, and different ultrasonic waves are emitted under the control of the control circuit to meet different business needs. [0003] Ultrasonic imaging is to transmit ultrasonic waves into the human body and reflect them after encountering objects. According to the...

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Problems solved by technology

[0006] Although these devices can carry out targeted drug delivery and improve the efficiency of ultrasonic transdermal drug delivery to a certain extent, there are still some shortcomings: 1. The transdermal drug delivery device is not closely integrated with the guidance of the imaging device, or the device needs to be replaced after the imaging device is positioned For transdermal drug delivery, the guidance accuracy is reduced, and precise targeted transdermal drug delivery cannot be carried out; 2. The focal area in the ultrasonic field is where the intensity of the sound wave is the largest and the particle vibration direction is vertical to the depth direction. Penetration into the deepest part of the human body is the strongest, and these devices only have one focus position, which cannot effectively push the drug particles for a long distance in the depth direction

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