MEDICAL DEVICE, APPARATUS AND SURGICAL METHOD Russian patent published in 2015 - IPC A61B17/70 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine. Pedicular fixing device for implantation into human or animal vertebra, in fact, from dorsal side through one of vertebra pedicles, in such a way that distal part of fixing device enters vertebra body. Pedicular fixing device contains case, possessing proximal head part for fixation of orthopaedic device for stabilisation of vertebral column and distal rod part, made with possibility of fixation in vertebra. Case of said device has longitudinal channel, passing distally from proximal end, and at least one hole, extending from longitudinal channel outwards. Pedicular fixing device contains liquefiable element, to be inserted or inserted into longitudinal channel, and, at least partially liquefied under action of energy, influencing from proximal side, in such a way that liquefiable material leaks from longitudinal channel through at least one said hole into structures of solid tissue and/or material, substituting solid tissue. Said rod part does not have thread and has non-round transverse section. Rod part is twisted into spiral in such a way that range of angle of screwing pedicular fixing device along its entire length is within the interval from 10° to 270°. At least, part of rod part is flat, forms two flat sides and has at least two holes, extending from longitudinal channel outwards. One hole is located on each of said flat sides.

EFFECT: inventions provide increased strength of fixation in case of osteoporosis, osteopenia or otherwise impaired tissues.

7 cl, 25 dwg