The invention relates to the field of medical instruments, in particular to a pedicle screw positioning and guiding device. The pedicle screw positioning and guiding device comprises a rack, a lifting frame, a first locking device, a sliding frame, a second locking device, a rotation rod, a third locking device, a distance measuring device and two guiders. Each guider comprises a sliding block and a guiding cylinder. The distance measuring device comprises an installation base and a measuring scale. The axis of the measuring scale is perpendicular to the axis of the rotation rod. The axis of the measuring scale and the axes of the guiding cylinders are located on the same plane. The axis of each guiding cylinder hinged shaft is perpendicular to the plane where the axis of the corresponding guiding cylinder is located. The positioning and guiding device further comprises a fourth locking device, a fifth locking device, a sixth locking device, a positioning linkage device, a first angle measuring device and a second angle measuring device. The positioning and guiding device can adjust the guiders to the position which is worked out through a computer in three-dimensional space, and therefore a pedicle screw is guided, accurate implanting of the pedicle screw is achieved, the device is precise in positioning, and the manufacturing cost is low.

Pedicle screw positioning and guiding device

The invention discloses an angle guiding device for spinal surgery, which comprises bases. The number of the bases is two, the tops of the two bases are respectively inserted and connected with screwsthrough threads, the screws are sleeved with threaded sleeves through threads, guide columns are fixed to the top ends of the threaded sleeves, the top ends of the guide columns are sleeved with first limiting rings through threads, the guide columns are movably sleeved with first sleeves, and the side edges of the first sleeves are welded with fixing shafts; the ends, far away from the first sleeves, of the fixing shafts are rotatably connected with second sleeves, the same guide rail rod is movably connected between the two second sleeves in a sleeved way, second limiting rings are in sleeved connection with the guide rail rod through threads, the number of the two second limiting rings is two, the two second limiting rings respectively abut against the ends of the two second sleeves, and a positioning device is mounted on the guide rail rod. The position of a guider body can be conveniently adjusted, the operation is very simple, and the safety of the operation is improved.

Angle guiding device for spinal surgery

The invention discloses a vertebral body nail with an adjustable direction. The vertebral body nail comprises two fixing plates, patches are fixedly arranged at the bottom ends of the two fixing plates, and hemostatic plates are fixedly connected to the inner sides of the two fixing plates through elastic strips, and the top ends of the two fixing plates are movably connected with supporting columns through adjusting structures; And supports are movably connected to the top ends of the two supporting columns through hinge seats, a fixing structure is fixedly arranged at one end of each support, and the inner side of the fixing structure is in threaded connection with a vertebral body nail. An adjusting structure is arranged at the top end of each fixing plate, a universal ball head is arranged in each arranged adjusting structure, the universal ball head is flexibly changed to drive the direction of one corresponding fixing structure to change, so that the nailing direction of the vertebral body nail is changed, the integrating degree of the vertebral body nail and a spine is improved, and the stability of the spine is higher; and the hemostatic plate is arranged on the inner sideof each fixing plate, a hemostatic cotton bag is clamped at the bottom end of each hemostatic plate, so that hemostasis can be conveniently conducted on local skin during nailing.

Vertebral body nail with adjustable direction

The invention relates to the technical field of surgical operations, and discloses an auxiliary instrument for gastrointestinal surgery. The auxiliary instrument for gastrointestinal surgery comprises two fixing blocks; clamping grooves are adopted, the two fixing blocks are inserted into two operating table rods through the clamping grooves; first fixing bolts are inserted into screw holes and is screwed down; the operating table rods are clamped by the first fixing bolts, and completing preliminary fixation is achieved; a reinforcing plate is additionally arranged at the bottom of the fixing blocks, second fixing bolts are screwed into reinforcing holes; elastic blocks at the top of the reinforcing plate are adopted to compress the operating table rods, so that the stability of fixationis improved; a rotary adjusting knob is adopted, a connecting rod is adopted to drive a vertical gear to rotate, so that a transmission toothed chain is driven to move, two rotating cylinders can synchronously rotate in a bearing, a threaded moving rod is driven to move up and down under the thrust of threads, a fixing box can be adjusted to move up and down, lifting of the whole instrument is completed, the precision is higher, and the purposes of accurate height adjustment and good stability are achieved.

Auxiliary instrument for gastrointestinal surgery

The utility model relates to the field of medical equipment, in particular to pedicle screw locating guiding device, which comprises a frame, the crane, locking device one, the carriage, locking device two, the dwang, locking device three, distance -measuring device and two directors, the director includes slider and guide cylinder, distance -measuring device includes mount pad and measuring tape, the axis of measuring tape is mutually perpendicular with the axis of dwang, the axis of measuring tape and guide cylinder is on the coplanar, the axis of guide cylinder articulated shaft and the axis of measuring tape and guide cylinder place plane phase is perpendicular, locating guiding device still includes locking device no. 4, locking device five, locking device six, location aggregate unit, angle measuring device no. 1 and angle measuring device no. 2. This locating guiding device can raise the director to the position that the computer calculated at three dimensions to lead to pedicle screw, realize the accurate of pedicle screw and implant that the device not only fixes a position accuracy, low in manufacturing cost moreover.

Pedicle screw locating guiding device

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Pedicle screw positioning and guiding device

Pedicle screw locating guiding device