US 12,440,686 B2
Piezoelectrically-powered pacemaker using respiratory motion
Jeffrey Kingsley, Philadephia, PA (US)
Assigned to PIEZOCAP, INC., Manhasset, NY (US)
Filed by Piezocap, Inc., Manhasset, NY (US)
Filed on May 16, 2022, as Appl. No. 17/663,502.
Claims priority of provisional application 63/188,829, filed on May 14, 2021.
Prior Publication US 2022/0362566 A1, Nov. 17, 2022
Int. Cl. A61N 1/00 (2006.01); A61N 1/375 (2006.01); A61N 1/378 (2006.01); H02N 2/18 (2006.01); H10N 30/30 (2023.01)
CPC A61N 1/37512 (2017.08) [A61N 1/3782 (2013.01); H02N 2/181 (2013.01); H10N 30/308 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A piezoelectric energy harvesting device, comprising:
a piezoelectric material, wherein the piezoelectric material includes:
an inner surface having a concave shape, and
an outer surface having a bottom surface;
a ball positioned on the inner surface, wherein:
the bottom surface acts as a ground,
the inner surface acts as a positive node,
the inner surface, the outer surface, and the ball are configured to capture biomechanical energy associated with respiratory motion to cause movement of the ball, and
the movement causes mechanical stress to the piezoelectric material to produce an electrical current.