一种植入式聚焦超声发生器及其制备方法
By designing an implantable focused ultrasound generator, using lead-free KNN textured piezoelectric ceramic composite material and Fresnel spiral diffraction grating, the problems of large size and insufficient precision of existing devices have been solved, achieving efficient and safe deep brain stimulation and miniaturization, meeting the needs of long-term neuromodulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAZHONG UNIV OF SCI & TECH
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing transcranial focused ultrasound (TCU) devices are bulky and lack sufficient focusing accuracy, failing to meet the needs of long-term, high-precision neuromodulation. Furthermore, traditional piezoelectric materials pose health hazards, and miniaturization of implantable devices and effective ultrasound output remain challenges.
An implantable focused ultrasound generator was designed, which is composed of lead-free KNN textured piezoelectric ceramic composite material, Fresnel spiral diffraction grating and PDMS layer, etc. It generates 3MHz pulsed ultrasound through inverse piezoelectric effect, and uses diffraction grating to achieve focused ultrasound, reducing ringing interference and realizing miniaturization and high-efficiency sound pressure output.
It achieves high-precision deep brain stimulation, with miniaturized and biosafe devices that can adjust focus and stimulation parameters in real time to meet long-term neuromodulation needs.
Smart Images
Figure CN120617851B_ABST