Device for converting kinetic energy to electrical energy

A device for converting kinetic energy generated by an expandable/contractable element of a living organism to electrical energy, comprising:

• a support member;
• a first gear operatively coupled to the support member such that the first gear and the support member rotate together in a first direction about an axis;
• an electrical generator operatively coupled to the first gear;
• an actuator member;
• a second gear engaged with the first gear, the second gear coupled to the actuator member such that the actuator member and the second gear rotate together in a second direction about the axis, the second direction being opposite the first direction;
• a spring operatively coupled to the actuator member and to the support member;
• a flexible non-elastic strap having a proximal end and a distal end, the proximal end being operatively coupled to the actuator member and the distal end being operatively coupled to the support member;
• wherein the actuator member is rigid.