This invention provides a
wireless, passive force-position implantable
growth monitoring system and its fabrication method for early-onset
scoliosis correction. The
system includes: a connected compressible capacitive sensor and a flexible
wireless antenna coil; the compressible capacitive sensor is connected to a self-growing early-onset
scoliosis correction
implant growth rod, and the flexible
wireless antenna coil is disposed within the body. The compressible capacitive sensor and the flexible wireless antenna coil together constitute an LCR resonant circuit; the compressible capacitive sensor monitors the pressure changes caused by the elongation of the self-growing early-onset
scoliosis correction
implant growth rod during tissue or
bone growth, thereby causing changes in
capacitance and resulting in changes in the resonant frequency of the LCR resonant circuit; the resonant frequency change is detected and read out wirelessly via an external readout device. This
system is designed to meet the needs of digital
rehabilitation, requires no internal power supply, and has a stable structure, making it suitable for
growth monitoring after early-onset scoliosis correction
surgery.