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发明公开
CN109303932A 眼用镜片及其制备方法 无效 - 撤回

眼用镜片及其制备方法
摘要：
一种眼用镜片，包括一基体，该眼用镜片还包括形成在该基体表面的至少一第一聚电解质包覆层和至少一第二聚电解质包覆层、以及形成在该第一聚电解质包覆层及该第二聚电解质包覆层之间的药物，该基体带有的电荷的电性与该第一聚电解质包覆层带有的电荷的电性相反，该第二聚电解质包覆层带有的电荷的电性与该第一聚电解质包覆层带有的电荷的电性相反，该第一聚电解质包覆层与该基体之间及该第一聚电解质包覆层与该第二聚电解质包覆层之间均通过电荷的相互吸引结合在一起并处在一种静电平衡状态，当眼内压升高时，该静电平衡状态被破坏，从而释放位于该第一聚电解质包覆层及该第二聚电解质包覆层之间的该药物。本发明还涉及一种眼用镜片的制备方法。
摘要（英）：

An ocular lens comprises a base body and further comprises at least one first polyelectrolyte coating layer, at least one second polyelectrolyte coating layer and medicines, wherein the first polyelectrolyte coating layers and the second polyelectrolyte coating layers are formed on the surface of the base body, and the medicines are formed between the first polyelectrolyte coating layers and the second polyelectrolyte coating layers. The electrical property of charges of the base body is opposite to that of charges of the first polyelectrolyte coating layers, and the electrical property of charges of the second polyelectrolyte coating layers is opposite to that of the charges of the first polyelectrolyte coating layers. The first polyelectrolyte coating layers and the base body are combined together through mutual attraction of the charges and in an electrostatic equilibrium state, and the first polyelectrolyte coating layers and the second polyelectrolyte coating layers are also combined together through mutual attraction of the charges and in an electrostatic equilibrium state, so that when intra-ocular pressure is increased, the electrostatic equilibrium state is broken, and themedicines between the first polyelectrolyte coating layers and the second polyelectrolyte coating layers are released. The invention further relates to a preparation method of the ocular lens.

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