Enhanced Anti-Adhesive Barrier Membrane for Biomedical Applications

An advanced anti-adhesive barrier membrane formed from a blend of alginate and hyaluronic acid, featuring improved mechanical strength, tensile strength, and biocompatibility for biomedical applications.

The original patent disclosed an anti-adhesive barrier membrane using alginate and hyaluronic acid, but it had limitations in terms of mechanical strength, tensile strength, and biocompatibility. The new inventive concept addresses these limitations by introducing crosslinking with polyethylene glycol (PEG) molecules, reinforcing with electrospun nanofibers, and treating with plasma-mediated surface modification processes.

The enhanced anti-adhesive barrier membrane consists of a biocompatible hydrogel film formed from a blend of alginate and hyaluronic acid. The membrane is crosslinked with PEG molecules to enhance its mechanical strength, and optionally reinforced with a network of electrospun nanofibers to improve its tensile strength. The hydrogel film can be prepared through a method involving mixing, casting, and freeze-drying. Additionally, the membrane can be treated with a plasma-mediated surface modification process to reduce protein adsorption and improve cell compatibility. The new inventive concept also encompasses a surgical implant system, where the hydrogel barrier membrane is embedded with bioactive molecules to promote tissue healing and regeneration.

The new claims introduce the use of PEG crosslinking, electrospun nanofiber reinforcement, and plasma-mediated surface modification, which are not obvious from the original patent. These advancements provide a significant improvement in the mechanical strength, tensile strength, and biocompatibility of the anti-adhesive barrier membrane.

Alternative embodiments of the inventive concept include varying the ratio of alginate to hyaluronic acid, using different crosslinking agents or reinforcement materials, and applying the plasma-mediated surface modification process to other biomedical devices. Variations of the surgical implant system could involve different bioactive molecules or implant geometries.

The enhanced anti-adhesive barrier membrane has significant commercial potential in the biomedical industry, particularly in applications such as surgical implants, wound dressings, and tissue engineering. The market for such devices is growing rapidly, driven by the increasing demand for minimally invasive and biocompatible medical solutions.