Spinal support

Abstract

The invention discloses a spinal support. The spinal support comprises a tube, an air bag, and a telescopic magnesium alloy body; the air bag is arranged on the tube, and communicates with the tube; the telescopic magnesium alloy body comprises a front end, a rear end, and a telescopic part arranged between the front end and the rear end; and the air bag is coated with the telescopic part. When the spinal support is in expanded state, the sectional area of the front end is larger than the sectional area of the rear end. Being arranged with the tube, the air bag and the telescopic magnesium alloy body, the spinal support is capable of allowing the air bag and the telescopic magnesium alloy body to enter into the vertebral column under guidance of the tube; a contrast agent is injected through the tube so as to have the air bag expanded, thereby allowing the telescopic magnesium alloy body to horizontally expand and vertically propped so as to restore compressed fractured vertebrae; after the restoration of the vertebrae, the telescopic magnesium alloy body can achieve support effects so as to maintain the vertebrae at the restored state; and the telescopic magnesium alloy body can be retained inside the vertebral column, thereby facilitating injection of bone cement or bone materials so as to effectively maintain height of the vertebrae and correct kyphosis angle. In addition, during degradation process of the telescopic magnesium alloy body, the magnesium alloy has the effect of promoting bone formation.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a spinal bracket. Background technique [0002] The incidence of osteoporotic vertebral fractures worldwide is 1.4 million per year, and this number will gradually increase as the world ages. Complications such as chronic low back pain, decreased activity, and obvious spinal deformity greatly reduce the quality of life of these patients, and even cause death due to kyphoscoliosis or long-term bed rest. Minimally invasive percutaneous vertebral body augmentation has been widely used in some patients with osteoporotic or pathological spinal fractures because of its minimally invasive nature, rapid pain relief, and restoration of functional activities. [0003] In 1984, French Galibert et al. reported percutaneous vertebroplasty, which injected bone cement into the vertebral body through a percutaneous cannula to stabilize the fracture and relieve pain. Various improvements have b...

AI Technical Summary

Problems solved by technology

[0004] At present, metal implant materials for expandable stents in the vertebral body include titanium alloys, nickel, and cobalt-chromium alloys. These metals have good corrosion resistance and can maintain long-term structural stability in the body. Abrasion produces toxic metal ions that may cause allergic reactions or inflammation, reducing biocompatibility

Moreover, the above-mentioned materials are non-degradable materials, and complications such as fracture and dislocation may occur in the long-term

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