一种轮辐状脱细胞角膜及其制备方法和应用

CN122141013BActive Publication Date: 2026-07-17SICHUAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN UNIV
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing decellularization techniques suffer from uneven decellularization in the cornea, leading to the loss of bioactive components and reduced mechanical properties in the periphery of the cornea. Traditional methods are also ineffective in removing cellular components from the central region of the cornea.

Method used

Low thermal conductivity insulating material is applied to the upper and lower surfaces of the cornea. A corneal trephine is used to cut and construct spoke-shaped microchannels in a low-temperature environment. The growth of ice crystals is controlled by a directional temperature field to form directional microchannels, thereby improving decellularization efficiency and promoting host cell migration.

Benefits of technology

It achieves efficient removal of cellular components in the central part of the cornea, avoids the loss of bioactive components in the peripheral area, and enhances the biointegration and mechanical stability of the transplanted cornea and the recipient.

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Abstract

本发明公开一种轮辐状脱细胞角膜及其制备方法和应用,属于生物材料及组织工程技术领域。本发明通过对片状生物角膜组织建立从四周向中央递变的梯度温度场,实现水分子的相变过程沿温度梯度方向有序进行,在角膜中形成轮辐状微通道。所述轮辐状微通道能加速角膜中央区域脱细胞进程,避免角膜周边区域过度脱细胞使细胞外基质生物活性成分过度流失,并且在角膜与受体间形成仿生迁移路径,利于受体组织细胞向角膜中迁移和渗入,促进移植角膜与受体角膜缘的生物愈合,提高移植角膜生物稳定性。
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