Устройство для электростимуляции спинного мозга. Device for electrostimulation of the spinal cord.

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This device for spinal cord electrostimulation features a screw with a longitudinal axial channel expanding conically towards its head, accompanied by a retainer shaped as a transition diameter bushing with a collet featuring an outer conical surface and collar. The petals of this collet contact the inner conical surface of the screw's longitudinal axial channel. The clamping nut is then screwed onto the screw head. The chronic spinal cord electrostimulation method involves implanting the device on the spine, adjacent to the spinal cord, under radiological control using a conductor and fixing the electrodes before connecting them to the electrostimulation apparatus. The electrode is installed and fixed in the vertebra arch, the device is implanted, which acts as both a conductor and an electrode retainer. A channel towards the spinal cord is made in the vertebra arch, the device is placed within this channel, and an electrode is conducted to the area adjacent to the spinal cord and fixed in its achieved position. This setup allows for periodic (chronic) electrical stimulation of the spinal cord using wire electrodes, with the option to periodically remove and reinstall the electrode in its original location.