A wearable flexible ultrasound device, control method and system

By employing a flexible substrate and microfluidic coupling layer in the ultrasound device, ultrasound imaging and nerve stimulation functions are integrated, solving the problem of poor fit at curved parts in existing devices and achieving stable wearability and portable nerve modulation.

CN122321370APending Publication Date: 2026-07-03NAT INST OF ADVANCED MEDICAL DEVICES SHENZHEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT INST OF ADVANCED MEDICAL DEVICES SHENZHEN
Filing Date
2026-06-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing ultrasound equipment requires external devices for imaging or fixed support when performing neuromodulation. Furthermore, the transducer is a rigid structure, which cannot achieve good conformal fit in human body parts with large curvatures, resulting in bulky equipment with poor wearability.

Method used

The device integrates ultrasound imaging components and control units on a flexible substrate, combined with a microfluidic coupling layer and a micro piezoelectric pump, to achieve flexible fit and dynamic pressure regulation. It integrates ultrasound imaging and nerve stimulation functions, eliminating dependence on external devices and adapting to complex human body surfaces.

Benefits of technology

It improves the wearability and portability of the device, achieves stable fit on complex human body surfaces and independent neural control operation, and reduces the limitations of usage scenarios.

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Abstract

This invention provides a wearable flexible ultrasound device, control method, and system. The device includes a flexible substrate, on which an ultrasound imaging transducer, an ultrasound stimulation transducer, and a control unit are disposed. A microfluidic coupling layer is also disposed at the bottom of the flexible substrate. The microfluidic coupling layer is filled with a coupling medium and has a micro piezoelectric pump electrically connected to the control unit. When the wearable flexible ultrasound device is worn on a target object and responds to an activation command, the control unit first drives the micro piezoelectric pump to increase the pressure in the microfluidic coupling layer to a preset pressure value, and then drives the ultrasound imaging transducer to acquire ultrasound images on the target object. Based on the ultrasound images, the target location of the target nerve and the required target operating parameters are determined, thereby driving the ultrasound stimulation transducer to send ultrasound stimulation signals to the target nerve at the target location based on the target operating parameters. This improves wearability and portability.
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