Abstract: A constant distraction force driven self-actuating growing rod system is provided for implantation on a corrected bony anatomy. The system includes components selected from the group consisting of at least one static rod, intermediate rod, or growth rod component; at least one compression spring component; at least one magnetic field-based spring actuation mechanism; at least one mechanical biasing mechanism, at least one casing, at least one guide rod and at least one spring actuator mechanism to apply an active distraction force; at least one magnetic field-based spring actuation mechanism and at least one dynamic sealing plug. During natural growth of the corrected bony anatomy, the growth rod component telescopes out of the intermediate rod component, creating a distraction force deficit that is corrected by causing the compression spring component to get compressed by the magnetic field-based spring actuation mechanism or the mechanical biasing mechanism, thereby maintaining an active distraction force.

Abstract: The present disclosure relates to a constant distraction force driven self-actuating growing rod system (100) for implantation on a deformed bony anatomy. The system (100) comprises at least one static rod component (10); at least one intermediate rod component (20); at least one growth rod component (30); at least one compression spring component (40) adapted to apply an active distraction force onto the system (100) of the present disclosure; at least one magnetic field-based spring actuation mechanism (50) and at least one dynamic sealing plug (60). During the natural growth of the deformed bony anatomy, the growth rod component (10) telescopes out of the intermediate rod component (20), creating a distraction force deficit in the system (100); the distraction force deficit being corrected by causing the compression spring component (40) to get compressed by means of the magnetic field-based spring actuation mechanism (50); thereby maintaining an active distraction force onto the system (100).