Heparin-functionalized surface, method for preparing the same, and use thereof

A multilayer coating method using priming and heparin-functionalized polymeric conjugates with single-point bonds addresses the peeling issue of heparin coatings, enhancing durability and antithrombin properties on medical devices.

JP2026511887APending Publication Date: 2026-04-14CORLINE SYST
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Patent Information

Application Number
JP2025557293
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-03-30
Filing Date
2024-03-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Heparin or heparin conjugate coatings on certain surfaces, such as metal surfaces, tend to peel off, losing their antithrombin properties and reducing their effectiveness over time.

Method used

A multilayer coating method involving priming the surface with a primer at elevated temperatures and using a heparin-functionalized polymeric conjugate with multiple GAG molecules, each bound by single-point bonds, to enhance adhesion and maintain biological activity.

Benefits of technology

The method improves the durability and stability of heparin coatings, maintaining antithrombin properties and increasing the amount of heparin on the surface, thereby preventing blood coagulation and promoting anticoagulant properties.

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Abstract

The present invention relates to a method for preparing a multilayer heparin conjugate coating on a substrate, the method promoting good adhesion to the substrate surface and increasing the number of available heparin molecules.
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