Minimally-invasive pedicle-screw implanting pulling hook

Abstract

The invention discloses a minimally-invasive pedicle-screw implanting pulling hook. The minimally-invasive pedicle-screw implanting pulling hook comprises a handle part, wherein a hook body is installed at the top of the handle part, an installing part is arranged at the bottom of the hook body, a lamellar slant part is arranged at the top of the hook body, a slant angle is formed between the installing part and the slant part, the outer side face of the slant part is a curved surface which is concave from the two sides to the center, and a bending part bent towards the outer side face of the slant part is arranged at the top end of the slant part. The minimally-invasive pedicle-screw implanting pulling hook can be used for simply and reasonably pulling muscles when a spinal internal fixation operation is carried out with the minimally invasive technology, an operation field is fully exposed, it is avoided that successful conducting of the operation is influenced by complex operating, and the operation efficiency is improved; in this way, the conditions such as muscle avascular necrosis and fibrosis caused by long-term pulling are avoided, and the safety and the success rate of the operation are guaranteed.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a retractor for minimally invasive pedicle screw implantation. Background technique [0002] With the development of medical technology, more and more medical operations use minimally invasive techniques. For example, many spinal internal fixation operations will be performed using minimally invasive techniques. In spinal internal fixation surgery, the most important step is the implantation of pedicle screws. Pedicle screw implantation technology can increase the stability of the spine and improve the fusion rate of the spine. It is widely used in spinal degeneration, vertebral body In various operations for slippage, spinal stenosis, bone metastases, and spinal instability. [0003] When performing pedicle screw implantation, it is necessary to separate soft tissues such as skin and muscle to expose the spine, then establish a screw implantation channel at a suitable positio...

AI Technical Summary

Problems solved by technology

During the whole process, the muscles, myofascia and ligaments of the human body often need to be subjected to extensive stripping and repeated stretching for a long time. Not only is the operation more complicated and difficult, which reduces the efficiency of the operation, but also may lead to postoperative Symptoms such as muscle ischemic necrosis and fibrosis, leaving long-term intractable side effects of back stiffness and pain

In traditional spinal internal fixation surgery, some retractors and other devices that can reasonably pull muscles have also appeared, but these traction devices are often not suitable for use in spinal internal fixation with less traumatic minimally invasive techniques. Minimally invasive technology for spinal internal fixation surgery, there is no suitable muscle traction device at this stage, which can safely and reasonably traction muscles to ensure that the operation can be carried out safely and efficiently

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