Centrum prosthesis and adjusting device and clamping device applied to centrum prosthesis

Abstract

The invention discloses a centrum prosthesis and an adjusting device and a clamping device applied to the centrum prosthesis. The centrum prosthesis comprises a height-adjustable centrum body, a bone grafting bin and an end plate riveting ring, the bone grafting bin is arranged in the centrum body, the upper end face and the lower end face of the centrum body are each provided with a first adjusting piece, the end plate riveting ring is connected to the upper end face and the lower end face of the centrum body through the first adjusting pieces, the centrum body comprises a first centrum body and a second centrum body, the upper portion of the first centrum body is connected with the lower portion of the second centrum body, and a second adjusting piece is arranged at the joint of the first centrum body and the second centrum body. When the centrum prosthesis is used, the overall height of the centrum prosthesis and the angle between the centrum prosthesis and an injured centrum can be adjusted according to actual conditions, adaptability is better, surgical operation is more convenient, and the error-tolerant rate is high.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a vertebral body prosthesis and an adjustment device and a clamping device applied thereto. Background technique [0002] With the continuous development of modern medicine, surgical techniques and tools are gradually improving. It has become a common treatment method to apply vertebral body prosthesis for bone graft fusion to treat cervical, thoracic and lumbar related diseases. Traditional vertebral prosthesis products are generally hollow cylindrical or hollow elliptical cylindrical. During clinical operations, bone fragments are filled in the internal through holes of the vertebral prosthesis to complete bone grafting and promote postoperative intervertebral space. fusion. The cylindrical surface of the vertebral prosthesis is provided with regularly arranged original-shaped holes or diamond-shaped holes. These holes mainly have two functions: 1. The length of t...

AI Technical Summary

Problems solved by technology

The obvious defects of these traditional vertebral body prosthesis are: 1. The vertebral body prosthesis needs to be cut during the operation to achieve the length and angle required for the operation. This operation process is very troublesome and cannot be adjusted. Once cut too short, it will not be used , and need to be re-cut; 2. The burrs and burrs formed by scissors need to be filed with a file. During this process, a large amount of metal powder will be formed, which may enter the human body with the vertebral prosthesis, increasing postoperative complications 3. Using tools such as surgical forceps and tweezers to clamp the vertebral body prosthesis for implantation will easily cause the problem of unstable clamping, which will easily lead to loosening and falling of the prosthesis, while the vertebral body prosthesis Once it falls, it cannot be used, and a new vertebral body prosthesis needs to be cut and bone grafted again, which delays the operation time, increases the amount of blood loss during the operation, and makes it more difficult for the patient to heal after the operation

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