▎ 摘　　要

NOVELTY - The device has an action assembly implanted in a spinal canal, where the action assembly comprises an implanting main body. The implanting main body is fixedly installed in the vertebral canal. A bottom portion of a first sub main body and a top portion of a second sub main body are connected by a connecting piece. An end of the connecting piece is fixed on a top portion of the second main body. A surface of the connecting piece is provided with a track groove. A battery comprises a positive electrode, a negative electrode and a diaphragm, where the diaphragm is located between the positive electrode and the negative electrode. A controller is electrically connected with the positive electrode and the negative electrode for receiving the control signal of an external terminal to control current on-off and strength between the positive electrode and the negative electrode. USE - Implantable medical device for use during vertebral canal treatment. ADVANTAGE - The device can adjust shape of the implanted main body according to the scoliosis degree to adapt to different degrees of patient, and the mounting arm can rotate, so that the position of the electrode can be adjusted according to the stimulation position after implanting the vertebral canal, thus enhancing the treatment effect. The device has stable electric conduction and electric output performance, and greatly increases the specific energy of the battery electrode through the lithium titanium oxide-graphene-lithium titanium oxide composite material of the battery electrode material, and can keep high capacity maintenance rate under the condition of large power operation, so that the service life of the device, stability and safety are greatly improved. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an implantable medical device for use during vertebral canal treatment.