CN Patent

CN109077993B — 一种泪小管缓释水凝胶植入剂及其制备方法

Assigned to Beijing Nuokangda Pharmaceutical Technology Co ltd · Expires 2021-03-16 · 5y expired

What this patent protects

本发明涉及一种活性成分制剂，具体涉及一种泪小管缓释水凝胶植入剂，该植入剂包括聚乙二醇衍生物水凝胶和活性成分颗粒，所述植入剂以聚乙二醇衍生物水凝胶为基质，活性成分颗粒均匀分布，所述植入剂采用拉伸仪制备。本发明还公开了该植入剂的制备方法。通过控制水凝胶处方与拉伸工艺参数，实现了植入剂规模化生产。凝胶可方便插入泪小管，实现无创植入，提高了患者顺应性。

USPTO Abstract

本发明涉及一种活性成分制剂，具体涉及一种泪小管缓释水凝胶植入剂，该植入剂包括聚乙二醇衍生物水凝胶和活性成分颗粒，所述植入剂以聚乙二醇衍生物水凝胶为基质，活性成分颗粒均匀分布，所述植入剂采用拉伸仪制备。本发明还公开了该植入剂的制备方法。通过控制水凝胶处方与拉伸工艺参数，实现了植入剂规模化生产。凝胶可方便插入泪小管，实现无创植入，提高了患者顺应性。

Drugs covered by this patent

Patent Metadata

Patent number
CN109077993B
Jurisdiction
CN
Classification
—
Expires
2021-03-16
Drug substance claim
No
Drug product claim
No
Assignee
Beijing Nuokangda Pharmaceutical Technology Co ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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