Connecting kit of subcutaneous elastic spine internal fixation system

A technology of fixing system and spine, applied in the directions of internal fixator, fixator, internal bone synthesis, etc., can solve the problem that the external fixator of the thoracolumbar spine cannot be placed under the skin of the patient, and reduce the incidence of skin and soft tissue infection, Reduce harassment and avoid the effect of cutting
CN107137136APending Publication Date: 2017-09-08็Ž‹ๆ–‡ๅ†›
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
็Ž‹ๆ–‡ๅ†›
Publication Date
2017-09-08

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Abstract

A connecting kit of a subcutaneous elastic spine internal fixation system comprises a prying block, a longitudinal rod locking screw and a vertebral pedicle locking screw, wherein a vertebral pedicle screw hole in the prying block is a stair hole of which the size decreases gradually from top to bottom; the hole passes through upper and lower end faces of the prying block; a vertebral pedicle locking screw hole penetrates into the vertebral pedicle screw hole from the rear wall face of the prying block; a longitudinal rod hole penetrates into the front end face of the prying block from the rear wall face of the prying block; a longitudinal rod locking screw hole penetrates into the longitudinal rod hole from the upper end face of the prying block; the longitudinal rod locking screw is installed in the longitudinal rod locking screw hole; and the vertebral pedicle locking screw is installed in the vertebral pedicle locking screw hole. According to the invention, elastic fixation of thoracolumbar vertebra posterior paths can be achieved based on principles of prying resetting. The prying block has a compact and small structure and can be placed under skin of a patient; in comparison with a thoracolumbar spine external fixator placed outside skin, post-operation nursing is simpler, effects on the patient's daily life are reduced, and the occurrence rate of local skin soft tissue infection is reduced.
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Description

technical field

[0001] The invention relates to an orthopedic surgical instrument, in particular to a surgical instrument for the surgical treatment of thoracolumbar fractures, restoring the height of the vertebral bodies of thoracolumbar fractures, and realizing the elastic fixation of the subcutaneous pedicle screw-rod system in posterior thoracolumbar surgery, especially a subcutaneous surgical instrument. Connection kit for elastic spinal fixation systems. Background technique

[0002] Thoracolumbar fractures are common in clinical practice, involving loss of vertebral body height or spinal canal stenosis, and the treatment methods are mostly surgery. The main purpose of the operation is to restore the height of the vertebral body and the biomechanical stability of the spine, and at the same time strive to reduce the surgical trauma and the incidence of postoperative complications as much as possible.

[0003] At present, for thoracolumbar fractures with unstable spine,...

Claims

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