Elastic Bandage With Micro Needles for Wound Closure

The patent changes the physical state of the base substrate from a static covering material to an elastic material that can be stretched and contracted. By controlling the elasticity parameter and the degree of stretching, the bandage can exert controlled closure force on the wound to bring opposing skin edges together while maintaining secure attachment through adhesive portions.

The patent introduces dynamic mechanical coupling members (micro needles with gripping structures) that can actively engage with the skin and dynamically adjust to wound closure movements. These members transition from a passive state to an active engagement state, providing dynamic force application and adjustment during the wound closure process.

The patent combines multiple functions into a single bandage device: wound coverage, secure attachment, and active closure force application. The elastic base substrate with mechanical coupling members serves as both a protective covering and a closure mechanism, eliminating the need for separate stitching procedures while achieving reliable wound closure.

The patent extracts the closure function from traditional stitching procedures and integrates it directly into the bandage structure itself. The mechanical coupling members and elastic substrate work together to provide closure force, removing the need for external stitching tools and procedures while maintaining effective wound closure.