Orthopedic surgery navigation template based on three-dimensional modeling

Abstract

The invention relates to a human orthopedic surgery guide, in particular to an orthopedic surgery navigation template based on three-dimensional modeling, which is characterized in that an upper splint (1) is adhered to a lower splint (2), a vertically moving guide structure is arranged between the upper splint (1) and the lower splint (2), and the middle part of the guide structure is provided with a circular hole (3); the ball head (8) of a ball-head catheter (6) is arranged in the circular hole (3) and is fixed on the upper splint (1) and the lower splint (2) respectively through two half Huff blocks (9); the upper splint (1) and the lower splint (2) are provided with a plurality of vertical small holes (11) arranged relatively densely, and a bone surface probe (12) which is movably matched with the small hole is arranged in each small hole (11); and one end of one of the upper splint (1) and the lower splint (2) is of an L-shaped structure with a screw hole, a bolt (13) penetratesthrough the hole, the body part of the bolt (13) on the outer side of the L-shaped structure is provided with a locking nut (14), and the head part of the bolt (13) is opposite to the end of the other splint.

Description

technical field [0001] The invention relates to a surgical device, in particular to a guide for human orthopedic surgery. Background technique [0002] At present, implants are used more and more in orthopedic surgery. Generally speaking, the accurate placement of screws in orthopedic implant surgery is the most important for surgical safety, such as spinal trauma reduction, deformity correction and other operations, generally use Pedicle screw internal fixation surgery, but because the inner side of the pedicle is the spinal canal that runs along important structures such as the spinal cord, once the pedicle screw is implanted into the spinal canal, it will cause spinal cord injury and cause paralysis, incontinence and other complications. Moreover, from the lumbar spine up, the cross-sectional diameter of the pedicles of the thoracic and cervical spine becomes smaller and smaller, which increases the difficulty and risk of surgery. [0003] Therefore, people began to look...

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Problems solved by technology

[0005] However, since the shapes of bones in various parts of the human body vary greatly, and the shapes of bones in the same part of different patients are also different, when performing operations according to the scheme described in the above-mentioned patent application, it is necessary to prepare a reverse navigation model. The preparation time in advance will increase the medical expenses for preparing the reverse navigation model

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