High-performance degradable biomedical tissue adhesive and preparation method and application thereof

A high-performance biodegradable biomedical tissue adhesive was prepared by linking PPDO with PEG and introducing succinimide ester groups. This method overcomes the shortcomings of existing adhesives in terms of biocompatibility and degradation safety, and achieves strong adhesion, controllable degradation and good biocompatibility.

CN122399086APending Publication Date: 2026-07-17SICHUAN UNIV +1
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Patent Information

Application Number
CN202610832044.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing medical tissue adhesives are insufficient in terms of biocompatibility and degradation safety, and cannot simultaneously achieve strong adhesion, controllable degradation and good biocompatibility.

Method used

By linking poly(p-dioxide) with hydrophilic polymers such as PEG and introducing succinimide ester groups on the side chains to form covalent bonds for strong adhesion, a high-performance biodegradable biomedical tissue adhesive is prepared by combining the crystallinity of PPDO and the flexibility of PEG.

Benefits of technology

It achieves high-strength, controllable degradability adhesives with elastic modulus and flexibility that match tissues, can rapidly degrade under physiological conditions, reduce stress and pressure, and provide strong adhesion and good biocompatibility.

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Abstract

本发明公开了一种高性能可降解生物医用组织胶粘剂及其制备方法与应用,属于医用组织胶粘剂技术领域,包括:将聚酯聚合物、具有柔性链段的高分子和具有反应活性基团的功能小分子混合得到混合物,加入扩链剂,得到高性能可降解生物医用组织胶粘剂。本发明的生物医用组织胶粘剂是基于聚酯‑柔性链段‑功能小分子的胶粘剂。通过扩链反应将聚酯与柔性链段相连接,并在侧链引入反应活性基团,利用其与组织表面基团形成共价键,从而实现牢固粘附。具有柔性链段的高分子使生物医用组织胶粘剂在生理温度下具有较高的链运动能力,赋予胶粘剂良好的柔韧性,从而获得与组织相匹配的弹性模量。聚酯则通过其结晶行为来提供有效的内聚强度。
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