本发明涉及一种利用载肝素微胶囊表面修饰的聚乳酸膜及制备方法，属于生物材料领域。

The invention relates to a polylactic acid membrane of surface-modified with microcapsule carrying hamocura and a preparation method thereof, belonging to the field of biomaterial.

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目的观察聚乳酸防黏连膜(PLAM)对椎板切除术后预防硬膜外黏连的临床效果。

Objective to investigate the clinical efficacy of poly lactic acid membrane (PLAM) in the prevention of epidural adhesion after lumbar laminectomy.

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共混膜中混入的明胶含量在5%以内时，在保持聚乳酸力学性能的同时，可以降低聚乳酸的接触角，改善聚乳酸的亲水性。

When gelatin content is less than 5%, blending films not only retains a good mechanical property, but also improves the hydrophilicity of PLLA.

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