Electronic implant for neuromuscular stimulation

An apparatus for Neuromuscular Stimulation comprising:

• an external unit (100) comprising a control module (101) and a transmitter resonant coil (105);
• and
• an implantable in-situ neuromuscular electrical stimulation device (200) comprising a housing (2000) composed by a receiver resonant coil (2001) and an on-chip circuit (2002);
• wherein the in-situ neuromuscular electrical stimulation device (200) receives data and power from the external unit (100) through an inductive link created between the receiver resonant coil (2001) and the transmitter resonant coil (105),
• wherein the implantable in-situ neuromuscular electrical stimulation device (200) comprises a cuff electrode 1 (201) and a cuff electrode 2 (202), a movement sensor 1 (203) and a movement sensor 2 (204), wherein the movement sensor 1 (203) and the movement sensor 2 (204) are included in conducting leads connecting the cuff electrode 1 (201) and the cuff electrode 2 (202) to the on-chip circuit (2002),
• wherein the on-chip circuit (2002) comprises a control unit module (20021), a rectifier and regulator module (20022), a power amplifier module (20023), a demodulator and time synchronization module (20024) and a biphasic stimulator (20026),
• wherein the control unit module (20021) comprises a digital stimuli waveform generator circuit adapted to produce signals that control the power amplifier module (20023), the produced signals are adjusted in real-time accordingly with input signals provided by the movement sensor 1 (203) and the movement sensor 2 (204) to deliver a rectangular symmetrical biphasic stimulating waveform through the cuff electrode 1 (201) and the cuff electrode 2 (202).