US 12,311,202 B2
Ultrasonic powered neural stimulating device without power sources and lead wires
Sang Woo Kim, Yongin-si (KR); Young Jun Kim, Daejeon (KR); Woo Seok Kang, Suwon-si (KR); and So Hee Kim, Hwaseong-si (KR)
Assigned to Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed by RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on Aug. 16, 2022, as Appl. No. 17/888,872.
Claims priority of application No. 10-2021-0109224 (KR), filed on Aug. 19, 2021.
Prior Publication US 2023/0059692 A1, Feb. 23, 2023
Int. Cl. A61N 7/00 (2006.01)
CPC A61N 7/00 (2013.01) [A61N 2007/0026 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An ultrasonic powered neural stimulating device without power sources and lead wires, the neural stimulating device comprising:
a time-limited polymer film comprising a porous structure and configured to be inserted into a body and wound around a nerve of the body; and
an ultrasound generator configured to be disposed outside the body and generate ultrasound directed toward the time-limited polymer film wound around the nerve,
wherein, in response to a wavelength of the ultrasound being equal to or greater than a thickness of the time-limited polymer film, a change in the thickness of the time-limited polymer occurs as the ultrasound passes therethrough,
wherein, in response to the change in the thickness of the time-limited polymer film, a change in a dielectric constant occurs and an electric field is generated due to the change in the dielectric constant, and
wherein the electric field stimulates the nerve.