Spine flexible fixation device

Abstract

The invention discloses a spine flexible fixation device which comprises a first connection bar, a second connection bar and pedicle screws. One end of the first connection bar is sleeved with an elastic pipe, the other end of the elastic sleeve is sleeved with the second connection bar, grooves are formed in the adjacent side walls of the first connection bar and the second connection bar, elastic connecting pieces are arranged in inner cavities of the grooves, the first connection bar and the second connection bar are connected with the pedicle screws through bar grooves respectively, and the upper sides of screw caps are connected with locking caps through threads. According to the spine flexible fixation device, the middles of the connection bars are connected through the elastic pipe and the elastic connecting pieces, so that the situation that rigidity force borne by joints of the connection bars hinders recovery of a patient is avoided. When the spine of the patient is bent due to activities, the spine is buffered in a certain degree due to the elastic connecting pieces, and great pain generated when the patient moves in the recovery process is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device for flexible spinal fixation. Background technique [0002] The spine is the central axis of the human body, and it is the pillar of the body. It has the functions of load bearing, shock absorption, protection and exercise. As people age, people's spine will bend and deform, which will affect people's normal life. Medicine For scoliosis, screw rods are used for correction and fixation. In traditional correction and fixation devices, the stress on each node between the connecting rod and the pedicle screw is rigid, which poses a great obstacle to the recovery of the patient. Moreover, the patient often suffers from great pain during the recovery process, and the connection between the traditional pedicle screw and the connecting rod mostly adopts a built-in fixed structure of bolts, and the upper end of the fixed pedicle screw will have a convex From the beginnin...

AI Technical Summary

Problems solved by technology

[0002] The spine is the central axis of the human body, and it is the pillar of the body. It has the functions of load bearing, shock absorption, protection and exercise. As people age, people's spine will bend and deform, which will affect people's normal life. Medicine For scoliosis, screw rods are used for correction and fixation. In traditional correction and fixation devices, the stress on each node between the connecting rod and the pedicle screw is rigid, which poses a great obstacle to the recovery of the patient. Moreover, the patient often suffers from great pain during the recovery process, and the connection between the traditional pedicle screw and the connecting rod mostly adopts a built-in fixed structure of bolts, and the upper end of the fixed pedicle screw will have a convex From the beginning, with the recovery and activities of the patient, there will be loosening and protruding rubbing nerves, which will bring great obstacles to the recovery of the patient. Therefore, we propose a flexible spinal fixation device

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