Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device

Abstract

A NiTi marmem type correcting restorer for treating the compressed bone fracture of vertebral body has a spherical, semi-spherical, ellipsoidal, or bottle-shaped main body, a top end with a small hole, and a tail tube able to be matched with the top end for push-in device. Its main body has a tubular shape at low ambient temp and can be restored to its original shape in human body for supporting the fracture position.

Description

technical field [0001] The design of the invention relates to a medical device, in particular to an implantable nickel-titanium temperature memory alloy orthopedic resetter for reduction and reinforcement of spinal vertebral body compression fractures. Background technique [0002] Vertebral compression fractures of the spine are a common disease, and there are different natures and types of vertebral fractures at different ages. The traditional treatment of vertebral compression fractures is the posterior short-segment pedicle screw technique based on the three-column theory of the spine. The screw is implanted into the normal pedicle adjacent to the upper and lower sides of the affected vertebra. The "stretch-compression" principle of the peripheral ligaments of the body was used to reset the affected vertebra; the internal fixation was removed after the fracture healed, and two operations were performed. [0003] Posterior pedicle screw technology has been clinically use...

AI Technical Summary

Problems solved by technology

However, the high-pressure-resistant balloon used in kyphoplasty is made of special materials, imported from abroad, and the cost is high; a contrast agent is required during use; the balloon is in danger of being punctured by bone in the vertebral body, which may cause the contrast agent to leak and cause serious damage. Blood vessels and spinal canal

[0006] The current clinical percutaneous pedicle puncture operation is divided into steps, and the operation is cumbersome. The C-arm X-ray machine monitors it multiple times, which increases the X-ray exposure of the operator.

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