Memory alloy spinal columnar orthopedic inner fixing system

Abstract

The present invention discloses a memory alloy spinal column orthopedic internal fixation system for making surgical operation in the field of medical instrument technology. Said system includes two orthopedic rods made of nickel-titanium shape memory alloy material, between said two orthopedic rods a transverse connector made of nickel-titanium shape memory alloy material is cross-connected, the lower end of every orthopedic rod is connected with a base hook made of nickel-titanium shape memory alloy material, and the upper end of every orthopedic rod is connected with several saddle hooks made of nickel-titanium shape memory alloy material.

Description

technical field [0001] The invention belongs to the technical field of surgical treatment medical instruments, in particular to a memory alloy spinal orthopedic internal fixation system. Background technique [0002] The surgical treatment of scoliosis has been developed since the 1960s to today, and the orthopedic theory and orthopedic effect have achieved a qualitative leap. Especially with the in-depth study of spinal biomechanics and the popularization and use of the three-dimensional orthopedic concept, the design, manufacture and surface processing technology of the supporting equipment have been improved day by day, bringing benefits to patients with spinal deformities. However, since most of these devices are developed and manufactured abroad, the cost of surgery remains high. At the same time, our country started relatively late in spinal orthopedic surgery, and the majority of doctors do not have enough knowledge of the three-dimensional orthopedic theory and princ...

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Problems solved by technology

The main defects of this system are: 1. Decompensation under static forced fixation, resulting in secondary deformity; 2. The degree of correction is affected by the physiological environment of the deformity. Completed; 3. The implantation of anchors (pedicle screws, various hooks) requires drilling and cutting out the vertebral body and bone plate to position, which increases the secondary damage of the bone; 4. Each component is affected by the function Influenced by the effect, the appearance shape and size cannot be further reduced, so that the skin of the back of the spine of the patient will suffer from the protruding bumps of the device after operation, affecting normal sleep and physical recovery, and severe cases may cause secondary infection

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