Interspinous supporting, fixing and fusing device

Abstract

The invention relates to medical apparatuses, in particular to an interspinous supporting, fixing and fusing device which is used for reserving a cervical vertebra muscle ligament complex minimally-invasive double-door operation. The interspinous supporting, fixing and fusing device comprises a main body supporting structure and a vertebral plate. The main body supporting structure is formed through titanium 3D printing, and is reliable in strength; meanwhile, the shape can be artificially designed, and good fit degree can be obtained. Moreover, various holes used in combination with screws and titanium cables can be prefabricated, fixing operation is facilitated, and the stability is high; reconstructive surgery for bones, ligaments, muscles and other structures can be minimally-invasive,and the normal forms and functions of important structures of the body are reserved.

Description

technical field [0001] The invention relates to a medical instrument, in particular to an interlaminar support, fixation and fusion device used for minimally invasive double-door operation for retaining cervical muscle-ligament complex. Background technique [0002] Posterior cervical double-door laminoplasty has been clinically used for decades as an important surgical procedure for the cervical spine. While achieving reliable results, there are still many problems that need to be improved. After the steps of bilateral lamina notching, central laminectomy, and spinal canal enlargement are completed, supports are placed between the incised lamina to maintain the "door open" state. The traditional method is to use artificial bone or allograft bone as interlaminar support and fix it with steel wire or suture. It has the following disadvantages: [0003] 1. There is a lot of damage to the complex structure of muscle groups and ligaments, and the reconstruction of the complex ...

AI Technical Summary

Problems solved by technology

[0003] 1. There is a lot of damage to the complex structure of muscle groups and ligaments, and the reconstruction of the complex structure of bones, ligaments, and muscles cannot be realized. The trauma is large, and it is easy to cause axial pain and stiffness of the cervical spine after surgery.

[0004] 2. Artificial bone or allogeneic bone is mostly used as the support fusion between the lamina. The strength of the support is limited, and it may be broken and cause support failure; the bone fusion rate is low, the adaptability is poor, and the fixation operation is difficult; Bone increases the risk of infection and disease transmission, and the source is limited; the structure is not strong enough, and it is not suitable for complex spinous process reconstruction and other surgical operations, and it cannot be minimally invasive

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