Self-adhesive polyurethane foam dressing

CN222765354UActive Publication Date: 2025-04-18CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES +1
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202421035169.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-04-18
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

Polyurethane foam dressings are not easy to fix on the wound surface, and self-adhesive polyurethane foam dressings are easy to disintegrate, and poor breathability and liquid absorption.

Method used

By setting a fill area between the film layer and the release film layer and setting a fill layer in the fill area, the dressing is fixed using the self-adhesion of the silicone glue layer while maintaining its excellent breathability, comfort and liquid absorption properties.

Benefits of technology

The stable fixation of the polyurethane foam dressing is achieved, which enhances its adhesion to the silicone adhesive layer, ensures the breathability and liquid absorption performance of the dressing, and avoids the risk of adhesion to wounds.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222765354U_ABST
    Figure CN222765354U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of medical dressings, in particular to a self-adhesive polyurethane foam dressing which is characterized in that a filling area is arranged between a thin film layer and a release film layer, and a filling layer is arranged in the filling area; the filling area is filled with the filling layer, the filling layer and the thin film layer are formed into a whole, and the filling layer comprises a polyurethane foam dressing layer located between the thin film layer and the silicone adhesive layer and the silicone adhesive layer located between the polyurethane foam dressing layer and the release film layer. The self-adhesive polyurethane foam dressing has the advantages that the self-adhesive polyurethane foam dressing is convenient to use, the self-adhesive polyurethane foam dressing can be directly fixed to the surface of a wound after the release film layer is peeled off without additional adhesive tape and the like, meanwhile, it is ensured that the polyurethane foam dressing layer makes direct contact with the wound, the self-adhesive polyurethane foam dressing has the excellent liquid absorption performance, the wound cannot be stimulated, and the self-adhesive polyurethane foam dressing has the good application prospect. And in the dressing replacement process, the problems of wound adhesion prevention, secondary pain and the like cannot occur.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Novel silicon gel foam dressing

    CN207024173U

  • Hydrocolloid foam complex is applied ointment or plaster

    CN207462233U