Spinal column fusion device internally lined with reinforced ribs

Abstract

A spinal column fusion device internally lined with reinforced ribs comprises a main body structure and two internally-lined metal reinforced rib structure bodies embedded in the main body structure, wherein the main body structure is of a tubular structure with two hollow holes, each internally-lined metal reinforced rib structure body comprises a metal connecting bridge and two cylinders with internal thread structures, the two cylinders are connected by the metal connecting bridge, and the connecting bridge is embedded in a tube wall of the tubular structure. The horizontal section of the fusion device imitates a spinal column anatomical structure, the whole strength and toughness of the fusion device are improved by a form of internally-lined reinforced ribs, and the selecting range of novel biological materials is enlarged. In the process of an implantation operation, the main body part borne by the internally-lined metal reinforced rib structure is implanted into a body, so thatthe situation that the fusion device can be damaged due to a bad mechanics environment during the operation to influence an operation success can be avoided.

Description

technical field [0001] The invention relates to a spinal fusion device, in particular to a spinal fusion device with inner lining and reinforcement, and belongs to the technical field of medical instruments. Background technique [0002] As an important technique in spinal surgery, intervertebral fusion has been widely used in the treatment of spinal fractures and dislocations, especially in the treatment of degenerative spinal diseases. Spinal fusion device is an effective means to treat spinal diseases such as spinal tuberculosis, infection, deformity, degenerative disease and intervertebral disc injury. [0003] In the 1950s, Cloward first proposed the concept of posterior lumbar intervertebral fusion, which is an ideal spinal fusion from a biomechanical point of view, and has gradually developed into one of the basic techniques of spinal surgery. In 1979, Bagby hollowed stainless steel The perforated column replaces the iliac bone for cervical interbody fusion in horses...

AI Technical Summary

Problems solved by technology

Metal materials cannot pass through X-rays, which affects the observation of bone fusion sites after surgery

[0008] Spinal fusion cages made of synthetic polymer materials such as polyether ether ketone and PEEK, although the elastic modulus matches the vertebral bone, have good corrosion resistance, and can transmit X-rays, but it can also cause a Series of complications: nerve root injury; cage loosening; cage collapse, intervertebral space and intervertebral foramen height reduction; non-fusion, etc.

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