KAFO is fixed in scoliosis in childrenTechnical field
The invention belongs to medical instruments field, and in particular to KAFO is fixed in scoliosis in children.
Background technology
At present for the children with growth potential and Adolescent Patients Undergoing Scoliosis Correction, in order to not influence height to increase as far as possibleIt is long, it is general using fixed in growth regulating valve it is orthopedic by the way of carry out surgical intervention, but above-mentioned therapeutic modality is arrived every half a yearOne-year age will carry out cutting operation again, strut and extend internal fixation device and be increased with adapting to height.Multiple cutting operation is adjustedIt is whole, add the pain in infant surgical intervention；And Repeated Operation can cause centrum mould and cortex osteoclasia, micro- bleeding and newSpontaneous fusion easily occurs for bon e formation, backbone, increases the stiffness index of backbone, influences the convex orthopedic effect of growth ability and side of backboneReally.And use nut check between the pedicle screw and Orthopedic rod of KAFO, the orthopedic system of formation be it is a kind of it is nonelastic,Fixation without dynamic stress, influences big to spinal mobility, adds the pain of orthopedic phase patient.
The content of the invention
The purpose of the present invention is to overcome above-mentioned technological deficiency there is provided KAFO is fixed in a kind of scoliosis in children, and this is rectifiedThe need for shape device disclosure satisfy that children and the Adolescent Patients Undergoing Scoliosis Correction of growth potential, it is to avoid implement repeatedly to cut adjustment extensionThe operation of interior fixation, mitigates pain of the patient in the orthopedic phase.
The present invention is reaches above-mentioned purpose, using following measure：
Fix KAFO in scoliosis in children, including Orthopedic rod, at least one proximally-located pedicle nail, at least oneFixed pedicle nail and at least one remotely located pedicle nail are oriented to, proximally-located pedicle nail is arranged on the near of scoliosisTop vertebra, the remotely located pedicle nail that end, the fixed pedicle nail of guiding are arranged on scoliosis are arranged on the distal end of scoliosis,The proximally-located pedicle nail is fixed by locker A and Orthopedic rod near-end, is oriented to fixed pedicle nail and is passed through locker BFixed with the middle part of Orthopedic rod, remotely located pedicle nail is fixed by locker C and Orthopedic rod distal end, the locker AIdentical with locker C-structure, including lock tube, closing piece, nut and sliding bolt, the external wall of upper portion of lock tube is provided with to be coordinated with nutScrew thread, middle part is provided with universal ball structure, close end positioning pedicle nail/distal portion positioning pedicle nail insertion lock tube, lockLock tube mounting hole and Orthopedic rod mounting hole are provided with block, lock tube mounting hole bottom is provided with the ball coordinated with universal ball structureLocked in nest, Orthopedic rod insertion Orthopedic rod mounting hole through sliding bolt and closing piece, the Orthopedic rod fixing end of sliding bolt is a taper knotStructure, its top is provided with ball, lock tube insertion lock tube mounting hole, and revolving part and nut are sleeved on outside lock tube successively, revolving partEngaged with closing piece, nut is fixed together with lock tube；The locker B includes lock tube, closing piece, nut and gim peg, lock tubeExternal wall of upper portion be provided with the screw thread coordinated with nut, middle part is provided with universal ball structure, is oriented in fixed pedicle nail insertion lock tube,Lock tube mounting hole and Orthopedic rod mounting hole are provided with closing piece, lock tube mounting hole bottom is provided with the ball coordinated with universal ball structureLocked in nest, Orthopedic rod insertion Orthopedic rod mounting hole through gim peg and closing piece, the Orthopedic rod end of gim peg is fixed as planar structure,In lock tube insertion lock tube mounting hole, revolving part and nut are sleeved on outside lock tube successively, and revolving part is engaged with closing piece, nut and lock tubeIt is fixed together.
The middle part of the Orthopedic rod is thick, by middle part proximally portion, barred body is tapered on the direction of distal portion.
The guiding that the top vertebra that scoliosis is arranged in KAFO is fixed in scoliosis in children of the present invention fixes pedicle of vertebral archNail, with that can not be moved after being connected in the middle part of Orthopedic rod relative to Orthopedic rod, is oriented to fixed pedicle nail and top vertebra region by locker BVertebral fusion, and proximally-located pedicle nail and remotely located pedicle nail are fixed Orthopedic rod end because of the sliding bolt of its locker and setIt is equipped with ball so that near-end end positioning pedicle nail and remotely located pedicle nail can be towards away from Orthopedic rods after being connected with Orthopedic rodThe direction of central part is slided, the need for adapting to spinal growth, extension.Simultaneously after lock tube and pedicle nail interference fits with closing pieceFixed, revolving part can drive lock tube and pedicle nail to move, and possess angular adjustability, adapted to respectively by adjustment angleFixed angle is planted, and pedicle nail is had certain elasticity in the presence of body weight, fixed centrum stress is in walking processIn be continuous change, fixed vertebra stress variation can be transported, and reduces the pain of orthopedic patients, improves orthopedic effect.
Brief description of the drawings
The front view of Fig. 1 present invention.
The top view of Fig. 2 present invention.
Fig. 3 locker A of the present invention and locker C locking schematic diagram.
Fig. 4 locker B of the present invention locking schematic diagram.
In figure, 1 Orthopedic rod, 2a proximally-located pedicle nails, 2b is oriented to fixed pedicle nail, the remotely located pedicles of vertebral arch of 2cNail, 3a lockers A, 3b locker B, 3c locker C, 31 lock tubes, 31a universal ball structures, 32 closing pieces, 32a lock tube mounting holes,32b Orthopedic rod mounting holes, 33 revolving parts, 34 nuts, 35 sliding bolts, 36 balls, 37 gim pegs.
Embodiment
KAFO, including Orthopedic rod 1, at least one proximally-located vertebral arch are fixed in the scoliosis in children of the present inventionRoot nail 2a, the fixed pedicle nail 2b of at least one guiding and at least one remotely located pedicle nail 2c, proximally-located pedicle of vertebral archNail 2a is arranged on the fixed pedicle nail 2b of the near-end of scoliosis, guiding and is arranged on the top vertebra of scoliosis, remotely located vertebral archRoot nail 2c is arranged on the distal end of scoliosis.Proximally-located pedicle nail 2a is consolidated by the near-end of locker A3a and Orthopedic rod 1It is fixed, it is oriented to fixed pedicle nail 2b and is fixed by locker B3b and Orthopedic rod 1 middle part, remotely located pedicle nail 2c passes throughLocker C3c and Orthopedic rod 1 distal end are fixed.The locker A is identical with locker C-structure, refers to equal Fig. 3, main bagLock tube 31, closing piece 32, nut 34 and sliding bolt 35 are included, the external wall of upper portion of lock tube 31 is provided with the screw thread coordinated with nut 34, inPortion is provided with universal ball structure 31a, close end positioning pedicle nail 2a/ distal portion positioning pedicle nail 2c insertion lock tubes 31, lockLock tube mounting hole 32a and Orthopedic rod mounting hole 32b are provided with block 32, Orthopedic rod 1 is placed in Orthopedic rod mounting hole 32b through slidingBolt 35 is locked with closing piece 32, and the Orthopedic rod fixing end of sliding bolt 35 is a cone structure, and its top is provided with ball 36, and lock tube 31 is insertedEnter in lock tube mounting hole 32a, revolving part 33 and nut 34 are sleeved on outside lock tube 31 successively, and revolving part 33 is engaged with closing piece 32, spiral shellAfter mother 34 fixes with lock tube 31, can tense lock tube 31 makes the universal ball structure 31a of lock tube 31 and closing piece 32 firm.Lock tube mounting hole32a bottoms are provided with the ball-and-socket coordinated with universal ball structure 31a.
Locker B structural reference Fig. 4, it includes lock tube 31, closing piece 32, nut 34 and gim peg 37, lock tube 31External wall of upper portion is provided with the screw thread coordinated with nut 34, and middle part is provided with universal ball structure 31a, is oriented to fixed pedicle nail 2b insertion locksIn set 31, lock tube mounting hole 32a and Orthopedic rod mounting hole 32b are provided with closing piece 32, Orthopedic rod 1 is placed in Orthopedic rod mounting holeLocked in 32b through gim peg 37 with closing piece 32, the Orthopedic rod fixing end of gim peg 37 is planar structure, the insertion lock tube peace of lock tube 31Fill in the 32a of hole, revolving part 33 and nut 34 are sleeved on outside lock tube 31 successively, and revolving part 33 is engaged with closing piece 32, nut 34 and lockAfter set 31 is fixed, can tense lock tube 31 makes the universal ball structure 31a of lock tube 31 and closing piece 32 firm.Lock tube mounting hole 32a bottomsIt is provided with the ball-and-socket coordinated with universal ball structure 31a.
In use, proximally-located pedicle nail 2a is arranged on the near-end of scoliosis, is oriented to fixed pedicle nail 2b settingsBe arranged on the distal end of scoliosis in top vertebra, the remotely located pedicle nail 2c of scoliosis, pedicle nail particular number according toThe convex concrete condition setting in side, by proximally-located pedicle nail 2a, is oriented to fixed pedicle nail 2b and remotely located pedicle nail 2cIt is implanted into behind patient spine relevant position, lock tube 31 is set to outside pedicle nail, adjusts good position, be then sleeved on closing piece 32Outside lock tube 31, such spherical structure is formed, then assembling revolving part 33 and nut 34 successively, first not tightening nut 34, all vertebrasOrthopedic rod 1 is placed in Orthopedic rod mounting hole 32b by nut nail after being installed in place, and adjusts good position, and locking nut 34 fixes ten thousandTo structure, Orthopedic rod 1 is fixed with closing piece 32 with sliding bolt 35 or gim peg 37.