Multi-purpose absorbable artificial lamina

Abstract

The invention discloses a multifunctional absorbable artificial lamina comprising a lamina body. The lamina body is composed of a base body, an outer fixing piece and an inner fixing piece. The base body is of an arched structure, and the outer fixing piece and the inner fixing piece are arranged on two sides of the base body respectively. Autogenous bone fragments can be implanted above the base body. An upper margin and a lower margin are arranged at two ends of the base body respectively and are arc-shaped protrusions respectively. A first arc-shaped groove and a second arc-shaped groove are formed in the lower surface of the upper margin and the upper surface of the lower margin respectively. The second arc-shaped groove of the upper surface of the lower margin of a previous lamina body can be in seamless joint with the first arc-shaped groove of the lower surface of the upper margin of a next lamina body. A plurality of suture holes used for suturing are symmetrically formed in one sides, close to the base body, of the outer fixing piece and the inner fixing piece respectively. The multifunctional absorbable artificial lamina is proper in physical performance and mechanical strength, and can be widely applied to injury repairing of various structures such as rear sides, rear lateral sides and outer lateral sides of cervical vertebras, thoracic vertebras, lumbar vertebras and caudal vertebras.

Description

technical field [0001] The invention relates to a multipurpose absorbable artificial lamina. Background technique [0002] Laminectomy is a commonly used surgical method in spinal surgery. It usually refers to the removal of part or all of the lamina through the posterior approach to expose the spinal canal and clean up the lesions in the spinal canal. However, after the laminectomy, the structure of the posterior column of the spine was destroyed by the operation, causing corresponding spinal instability, and scar tissue hyperplasia was formed in the laminar defect area, which adhered to the dura mater and nerve roots, involved, and compressed neurovascular tissues. Symptoms recur afterward, leading to failure after spinal surgery (FBSS), which seriously affects the long-term effect of spinal surgery. How to prevent the occurrence of this complication is an urgent issue in the field of spinal surgery. [0003] Artificial lamina (artificial lamina, AL) is when the human spi...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the disadvantages of uncontrollable mechanical strength and unfavorable induction of new bone growth in the existing artificial lamina, the present invention provides a multi-purpose absorbable artificial lamina with suitable mechanical strength, which is beneficial for inducing new bone hyperplasia and fusion

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