Ultrasonic transducer coupling device for transcranial ultrasonic stimulation of human body

Abstract

The invention discloses an ultrasonic transducer coupling device for transcranial ultrasonic stimulation of a human body. The ultrasonic transducer coupling device comprises an automatic pitch adjusting mechanism, an ultrasonic transducer and a water bag structure, wherein the automatic pitch adjusting mechanism is connected with distal and proximal ends of the ultrasonic transducer and is used for adjusting an axial distance between the ultrasonic transducer and scalp of a testee; the ultrasonic transducer is used for generating focused ultrasonic waves required for the transcranial ultrasonic stimulation; the water bag structure is used for storing a liquid couplant and comprises a liquid couplant internal cavity and a liquid couplant external cavity, and a sound-transmitting film in contact with the human body is arranged at the distal end of the liquid couplant internal cavity of the water bag structure; and the liquid couplant internal cavity communicates with the liquid couplantexternal cavity, and the liquid couplant internal cavity and the liquid couplant external cavity store a liquid couplant which is used for conducting ultrasonic waves to the scalp of the testee. The ultrasonic transducer coupling device has the advantages that the depth of stimulation can be adjusted, the use method is simple, accurate positioning can be achieved, the safety is good, and the like.

Description

technical field [0001] The invention relates to the field of biomedical equipment, in particular to an ultrasonic transducer coupling device for human transcranial ultrasonic stimulation and an adaptive system for human transcranial ultrasonic stimulation including the ultrasonic transducer coupling device. Background technique [0002] Transcranial Ultrasound Stimulation (TUS) is an emerging non-invasive stimulation technology for intracranial nerves. Compared with other neuromodulation techniques such as transcranial magnetic stimulation (Transcranial Magnetic Stimulation, TMS), transcranial direct current stimulation (Transcranial Direct Current Stimulation, tDCS), transcranial ultrasound stimulation has many advantages. The first is safety. Various studies have shown that the ultrasound used for transcranial ultrasound stimulation is different from High Intensity Focused Ultrasound (HIFU) and other heat-effect ultrasound. Its principle of action is to directly regulate n...

AI Technical Summary

Problems solved by technology

However, in the actual use scenario of transcranial ultrasound stimulation, the distance between the transducer and the scalp may be relatively large (such as 2-5cm), which makes it difficult for liquid or creamy ultrasound gel to fill the ultrasound transducer and the scalp easily and reliably. The gap between the scalp, there must be a coupling device between the transducer and the scalp, and the coupling device should preferably have an adjustable distance from the scalp to flexibly meet the needs of actual use

The existing coupling devices on the market are relatively rare, and they are all fixed designs, that is, the distance from the exit surface of the ultrasonic transducer to the surface to be tested is fixed and cannot be adjusted as needed

Moreover, these coupling devices have problems such as generally small stimulation distance, inability to easily replace the coupling medium, and inability to monitor the fit with the target in real time.

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