publication_number US 2017100173 A1 abstract an extramedullary bone lengthener and use thereof that is an internal device that does not require nailing the invention includes a telescoping plate that attaches to the upper and lower portions of the bone via screws a small motor affixed on or within the plate this motor controlled remotely will controllably lengthen the plate thus lengthening the bone the bone will be cut then the plate will be applied to both ends and fixed to each end with screws the motor will be controlled from outside by a remote control which will allow the plate to expand causing lengthening of the attached bone application_number US 201515315248 A description the present invention relates to an implantable and remote controlled medical device designed to help in the process of bone elongation for children with skeletal deformities the medical device is an implantable miniaturized and remote controlled distraction osteogenesis device referring to the figures fig2 illustrates an embodiment of the present invention which includes the internal bone lengthener device 201 attached to bone segments 202 and 203 of a leg 207 bone screws 204 and 205 and a remote control device 208 that can be used to control the internal bone lengthener device 201 bone segments 202 and 203 are separated by gap 206 the new bone is to be formed in this gap 206 while the bone growth is occurring the distance between the bone segments 202 and 203 is increased using the internal bone lengthener device 201 through the remote control device 208 fig3 illustrates a base 301 of the internal bone lengthener device 401 shown in fig4 a 4d in this embodiment the internal bone lengthener device includes a battery.