US 11,878,190 B2
Triboelectric generator including nano-composite time-limited via selective ultrasound application thereto and neurostimulation therapy device using the same
SangWoo Kim, Yongin-si (KR); Min Ki Kang, Suwon-si (KR); Bo Sung Kim, Suwon-si (KR); Joon Ha Hwang, Suwon-si (KR); So Hee Kim, Hwaseong-si (KR); Young Jun Kim, Daejeon (KR); Dong Min Lee, Daejeon (KR); Jae Hwan Jung, Daejeon (KR); Hyoung Taek Kim, Suwon-si (KR); Dong Hyeon Kang, Suwon-si (KR); and Ji Hyun Park, Anseong-si (KR)
Assigned to ENERGY MINING CO., LTD, Suwon-si (KR)
Filed by ENERGY MINING CO., LTD., Suwon-si (KR)
Filed on Nov. 1, 2021, as Appl. No. 17/515,675.
Claims priority of application No. 10-2020-0145170 (KR), filed on Nov. 3, 2020.
Prior Publication US 2022/0134135 A1, May 5, 2022
Int. Cl. A61N 7/00 (2006.01); C08L 101/16 (2006.01); B82Y 30/00 (2011.01); B82Y 5/00 (2011.01)
CPC A61N 7/00 (2013.01) [C08L 101/16 (2013.01); A61N 2007/0026 (2013.01); B82Y 5/00 (2013.01); B82Y 30/00 (2013.01); C08L 2201/06 (2013.01); C08L 2203/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A triboelectric generator including a nano-composite time-limited via selective ultrasound application thereto, the generator comprising:
an electrode made of a biodegradable material;
a membrane disposed to face toward the electrode and spaced apart from the electrode; and
an encapsulation portion surrounding the electrode and the membrane,
wherein each of the membrane and the encapsulation portion is made of a nano-composite time-limited via selective ultrasound application thereto,
wherein the nano-composite includes:
a life-limited matrix; and
a nano-carrier embedded or contained in the matrix, wherein the nano-carrier is decomposed when a focused ultrasound is applied thereto,
wherein when general ultrasound is applied to the nano-composite, the membrane vibrates such that triboelectricity is generated via friction between the membrane and the electrode,
wherein when the focused ultrasound is applied to the nano-composite, the nano-carrier is decomposed and, thus, the matrix becomes porous, thereby increasing a biodegradation rate of the matrix.