[8p-C309-1~16] 12.7 Biomedical Engineering and Biochips

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-C309-8] Design of a flexible ultrasound stimulation device integrated with ECoG electrodes

〇(M2)Ziyuan Wei¹, Naohiro Takahashi¹, Jiaxuan Gu¹, Gouga Matsushita¹, Naoya Suzuki¹, Kaiki Shimizu¹, Koji Yamashita¹, Yuichi Takeuchi², Takeshi Kawano¹ (1.Toyohashi Tech Univ, 2.Kindai Univ)

Keywords:

ultrasound stimulation,ECoG,flexible device

Although ultrasonic neural stimulation is a minimally invasive technique, the bulky nature of conventional devices renders the simultaneous recording of electrocorticography (ECoG) challenging. Designed for murine models, this study proposes a miniaturized, flexible device that integrates ECoG electrodes and Capacitive Micromachined Ultrasonic Transducers (CMUTs) onto a Parylene substrate. Simulation results demonstrate the achievement of a 1.66 MHz resonant frequency, effectively circumventing auditory interference. Furthermore, acoustic field analysis of the mouse head confirmed the formation of an acoustic pressure focal region of 326 kPa at 1 mm directly above the array.