Elastic orthopedic stick for internal fixation of spines

Abstract

The invention relates to an elastic orthopedic stick used for the internal fixation of spines and belongs to the technical field of orthopedic implants of internal fixation of spines. The elastic orthopedic stick is particularly used for treating related diseases which can be treated by a spine vertebral pedicle screw internal fixation operation. The elastic orthopedic stick comprises a short stick, a long stick, disk-shaped spring washers and a locking screw sheet, wherein a cylindrical sleeve is arranged at one end of the short stick and the other end of the short stick is a short cylindrical stick, and the bottom of the cylindrical sleeve is provided with a cylindrical hole which is matched with one end of the long stick; and an internal thread is formed at an outer end inside the cylindrical sleeve, and the other end of the short stick is the short cylindrical stick. A cylindrical boss is arranged at one end of the long stick and the other end of the long stick is a long cylindrical stick; one end, which is provided with the cylindrical boss, of the long stick is inserted into the cylindrical sleeve of the short stick, and both sides of the cylindrical boss of the long stick are provided with the disk-shaped spring washers which are crosswise arranged respectively; and the locking screw sheet is arranged at an outer end of the cylindrical sleeve of the short stick and is provided with an external thread matched with the internal thread at the outer end inside the cylindrical sleeve of the short stick.

Description

technical field [0001] The invention relates to an elastic orthopedic rod for internal fixation of the spinal column, belonging to the technical field of orthopedic implants for internal fixation of the spinal column. Especially for the treatment of related diseases suitable for internal fixation with spinal pedicle screws. Background technique [0002] The primary function of a healthy spine is to stabilize adjacent vertebrae, protect nerves, and support some of the body's weight. However, these functions may be affected when spinal lesions affect people's normal life activities. For some spinal diseases, spinal pedicle screw fixation is a better treatment method, and it is widely used at home and abroad. The orthopedic rod for internal fixation of the spine is the connecting rod used to connect each pedicle screw in spinal pedicle screw internal fixation. Traditional spinal internal fixation orthopedic rods use cylindrical metal rods. When implanted into the human body ...

AI Technical Summary

Problems solved by technology

Once fusion fails with traditional spinal internal fixation orthopedic rods, it will not only fail to treat the lesion, but also damage the adjacent segment of the spine, which will bring more pain to the patient

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